A motor soft starter

Abstract

The present invention discloses a motor soft starter, and relates to the technical field of motor soft starters, including a soft starter body, a heat dissipation mechanism is arranged at the bottom end of the soft starter body, a display screen is fixedly connected to the side wall of the soft starter body, a plurality of groups of buttons located below the display screen are arranged on the side wall of the soft starter body, and the heat dissipation mechanism includes two groups of slide rails, and the two groups of slide rails are fixedly connected to the outer wall of the soft starter body. The present invention drives the heat dissipated by the soft starter body to extend the service life of the soft starter body by blowing airflow through the inside of the heat conduction groove through a fan, thereby driving the heat dissipated by the soft starter body, and the fixed frame can be pushed and pulled up and down regularly, so that the scraper and the scraper can clean the dust on the heat conduction groove and the filter net, and the slapping plate is driven to slap the fixed frame during the cleaning process, so that the dust on the filter net can be removed more efficiently.

Description

Technical Field

[0001] The invention relates to the technical field of motor soft starters, in particular to a motor soft starter. Background Art

[0002] The motor soft starter is a new type of starting equipment designed and produced using power electronics technology, microprocessor technology and modern control theory, and is at the internationally advanced level. The motor soft starter is a novel motor control device that integrates motor soft starting, soft stopping, light load energy saving and multiple protection functions. It is called SoftStarter abroad.

[0003] However, the current intelligent soft starter is not convenient to disassemble and assemble for maintenance after installation, and it is very troublesome to disassemble the entire device. At the same time, the heat dissipation performance of the current intelligent soft starter is poor.

[0004] An existing patent (publication number: CN220173119U) discloses an intelligent motor soft starter, including an intelligent soft starter body, a connecting plate is connected between the center of the top and bottom of the back side of the intelligent soft starter body, baffles are symmetrically installed on the two longer edges of the back side of the intelligent soft starter body, and a cooling fan is embedded on the back side of the intelligent soft starter body below each baffle. The baffle, the cooling fan, the slide plate, the mounting plate and the screw rod make the intelligent motor soft starter easy to disassemble and assemble. The intelligent motor soft starter can be quickly removed by unscrewing the screw rod, thereby greatly improving the convenience of the maintenance of the intelligent motor soft starter. At the same time, the hot air inside the intelligent motor soft starter is discharged through the cooling fan, thereby stably improving the heat dissipation efficiency of the intelligent motor soft starter.

[0005] However, the above technical solution still has certain defects. Although the above technology dissipates heat for the soft starter through structures such as a cooling fan and allows the soft starter to be easily disassembled and assembled, dust continuously adheres to the inside of the soft starter during the process of the cooling fan blowing the airflow through the inside of the soft starter, thereby causing the air duct inside the soft starter to be blocked, thereby causing the heat dissipation effect to deteriorate. For this reason, a motor soft starter is proposed. Summary of the invention

[0006] Based on this, the purpose of the present invention is to provide a motor soft starter to solve the technical problem raised in the above background that dust constantly adheres to the inside of the soft starter, thereby causing the internal air duct of the soft starter to be blocked, thereby causing the heat dissipation effect to deteriorate.

[0007] To achieve the above object, the present invention provides the following technical solution: a motor soft starter, comprising a soft starter body, a heat dissipation mechanism is arranged at the bottom end of the soft starter body, a display screen is fixedly connected to the side wall of the soft starter body, and a plurality of groups of buttons located below the display screen are arranged on the side wall of the soft starter body;

[0008] The heat dissipation mechanism includes two groups of slide rails, the two groups of slide rails are fixedly connected to the outer wall of the soft starter body, the side walls of the two groups of slide rails are respectively slidably connected with a group of slide bars, the side walls of the two groups of slide bars are fixedly connected with a fixed frame, the inner wall of the fixed frame is fixedly connected with multiple groups of heat dissipation fans, the inner wall of the soft starter body is provided with a heat conduction groove located directly above the heat dissipation fan, the top of the fixed frame is fixedly connected with multiple groups of pull rods, the top of the pull rods extends to the top of the soft starter body, the tops of the multiple groups of pull rods are respectively slidably connected with a group of scrapers, the inner wall of the scraper is fixedly connected with two groups of rubber strips, the inner wall of the fixed frame is fixedly connected A filter is connected, and the filter is located below the heat dissipation fan. The inner wall of the fixed frame is slidably connected with a scraper, and the scraper is attached to the bottom end of the filter. One end of the scraper is fixedly connected with a sliding frame. The side wall of the fixed frame is provided with a synchronous belt, and the outer wall of the synchronous belt is fixedly connected with a push rod. The sliding frame sliding sleeve is provided on the outer wall of the push rod. A first gear is fixedly connected to a group of rotating shafts of the synchronous belt. The inner wall of the fixed frame is rotatably connected with a second gear extending to the outside of the fixed frame, and the first gear is meshed with the second gear. The side wall of the soft starter body is fixedly connected with a rack, and the second gear is meshed with the rack.

[0009] As a preferred technical solution of a motor soft starter of the present invention, the bottom end of the fixed frame is fixedly connected with a sleeve, the inner wall of the sleeve is slidably sleeved with a sliding rod, the two ends of the sliding rod respectively extend from the two ends of the sleeve to the outside of the sleeve, one end of the sliding rod is fixedly connected with a butt joint, and the side wall of the starter is fixedly connected with multiple groups of inclined blocks.

[0010] As a preferred technical solution of a motor soft starter of the present invention, the other end of the sliding rod is fixedly connected to a slapping plate, the side wall of the slapping plate is attached to the side wall of the fixed frame, and a rubber pad is provided at the contact position of the slapping plate with the fixed frame.

[0011] As a preferred technical solution of the motor soft starter of the present invention, two groups of first return springs located inside the sleeve are fixedly connected to the side wall of the slide rod, and the ends of the first return springs are fixedly connected to the inner wall of the sleeve.

[0012] As a preferred technical solution of a motor soft starter of the present invention, a connection mechanism is provided at the top of the soft starter body, and the connection mechanism includes multiple groups of conductive sheets, and the multiple groups of conductive sheets are fixedly connected to the top of the soft starter body.

[0013] As a preferred technical solution of a motor soft starter of the present invention, the top end of the soft starter body is rotatably connected to multiple groups of pressure blocks, the multiple groups of pressure blocks are respectively located next to a group of conductive sheets, the side walls of the pressure blocks are provided with multiple groups of protrusions, the side walls of the multiple groups of pressure blocks are respectively hinged with a group of push rods, the ends of the multiple groups of push rods are hinged with a group of limit rods, and the bottom ends of the limit rods are provided with multiple groups of limit grooves.

[0014] As a preferred technical solution of a motor soft starter of the present invention, the top of the soft starter body is slidably connected to a plurality of groups of limit blocks extending into the interior of the soft starter body, the top of the limit blocks is a one-way inclined surface, and the top inclined surface of the limit blocks coincides with the limit groove, and the side walls of the plurality of groups of limit blocks are respectively provided with a group of sliding grooves, and the inner wall sliding sleeves of the sliding grooves are provided with pushing rods, and the ends of the plurality of groups of pushing rods are fixedly connected to unlocking rods extending to the outside of the soft starter body.

[0015] As a preferred technical solution of the motor soft starter of the present invention, a group of second return springs are fixedly connected to the bottom ends of the plurality of groups of limit blocks respectively, and the bottom ends of the second return springs are fixedly connected to the inside of the soft starter body.

[0016] As a preferred technical solution of a motor soft starter of the present invention, the inner wall of the soft starter body is provided with a mounting mechanism extending to the outside of the soft starter body, and the mounting mechanism includes two groups of fixed plates, the two groups of fixed plates are slidably connected to the inner wall of the soft starter body, and the two groups of fixed plates extend to the outside of the soft starter body, and the side walls of the two groups of fixed plates are respectively hinged with two groups of connecting rods.

[0017] As a preferred technical solution of a motor soft starter of the present invention, the ends of the two groups of connecting rods on the same side are hinged with an extrusion plate, the side wall of the extrusion plate extends to the outside of the soft starter body, and one end of the extrusion plate located inside the soft starter body is fixedly connected to a third return spring, and the end of the third return spring is fixedly connected to the inner wall of the soft starter body.

[0018] In summary, the present invention mainly has the following beneficial effects:

[0019] 1. The present invention uses a fan to blow airflow through the inside of the heat conduction groove, thereby driving the heat dissipated by the soft starter body, thereby extending the service life of the soft starter body, and the fixed frame can be pushed up and down regularly, so that the scraper can scrape the dust adhered to the inside of the heat conduction groove. In the process of pulling the fixed frame up and down, the scraper slides back and forth at the bottom of the filter, thereby scraping and cleaning the dust at the bottom of the filter, and in the process of cleaning, the clapping plate is driven to clap the fixed frame, so that the dust on the filter can be removed more efficiently, so that the entire air duct will not be blocked by dust, thereby ensuring the heat dissipation effect;

[0020] 2. The present invention inserts the wires beside the multiple groups of conductive sheets respectively, and then pushes the limit rods, so that the limit rods push the multiple groups of pressure blocks to flip through the multiple groups of push rods at the same time. The multiple groups of pressure blocks contact the wires during the flipping process, so that the wires are tightly pressed on the conductive sheets. In the process of pushing the limit rods, the limit blocks are used to limit the limit rods, so that the pressure blocks will not loosen the wires. When the wires need to be separated from the conductive sheets, the unlocking rod is pushed to move the pushing rod to push the limit blocks to slide downward, so that the limit blocks and the limit rods cannot contact each other, and then the wires can be pulled out upwards to separate the wires from the conductive sheets, so that the conduction is more convenient and efficient in the process of connecting with the soft starter.

[0021] 3. The present invention pushes the two groups of extrusion plates to slide inside the soft starter body, so that the two groups of extrusion strips push the two groups of fixed plates away from each other through the two groups of connecting rods, and the two groups of extrusion plates compress the two groups of third reset springs respectively, and then the soft starter body is fitted on the mounting strip, and then the two groups of extrusion plates are released, so that the two groups of third reset springs push the two groups of extrusion plates to reset, and at this time, the two groups of extrusion plates drive the two groups of fixed plates to approach each other through the connecting rods, so that the two groups of fixed plates clamp the mounting strip, so that the soft starter body can be quickly and conveniently fixed and installed inside the power distribution cabinet, making the installation and fixing work of the soft starter more convenient, and improving the work efficiency of the soft starter installation work. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a rear view structural schematic diagram of the present invention;

[0023] Figure 2 It is a schematic diagram of the main structure of the present invention;

[0024] Figure 3 It is a bottom view structural schematic diagram of the present invention;

[0025] Figure 4 It is a schematic diagram of the cross-sectional structure of the rear and side walls of the soft starter body of the present invention;

[0026] Figure 5 It is a schematic diagram of the main structure of the connecting mechanism of the present invention;

[0027] Figure 6 It is a schematic diagram of the installation mechanism structure of the present invention;

[0028] Figure 7 This is a schematic diagram of the main structure of the soft starter of the present invention when the main body is removed;

[0029] Figure 8 This is a schematic diagram of the structure of the soft starter of the present invention when the main body is removed;

[0030] Fig. 9 For the present invention Figure 8 Schematic diagram of the structure at A in the middle;

[0031] Fig.10 It is a schematic diagram of the main structure of the fixed frame of the present invention;

[0032] Fig.11 It is a schematic diagram of the exploded structure of the internal structure of the fixing frame of the present invention.

[0033] In the figure: 1. Soft starter body; 2. Heat dissipation mechanism; 3. Connecting mechanism; 4. Mounting mechanism; 5. Display screen; 6. Button; 201. Slide rail; 202. Slide bar; 203. Fixed frame; 204. Heat dissipation fan; 205. Heat conduction groove; 206. Pull rod; 207. Scraper; 208. Rubber strip; 209. Filter; 210. Scraper; 211. Slide frame; 212. Synchronous belt; 213. Push rod; 214. First gear; 215. Second gear; 216. Rack; 217, sleeve; 218, slide bar; 219, abutment; 220, inclined block; 221, slap plate; 222, first return spring; 301, conductive sheet; 302, pressure block; 303, push rod; 304, limit rod; 305, limit groove; 306, limit block; 307, sliding groove; 308, second return spring; 309, pushing rod; 310, unlocking rod; 401, fixing plate; 402, connecting rod; 403, extrusion plate; 404, third return spring. DETAILED DESCRIPTION

[0034] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0035] The following describes an embodiment of the present invention based on its overall structure.

[0036] A motor soft starter, such as Figures 1 to 11 As shown, it comprises a soft starter body 1, a heat dissipation mechanism 2 is arranged at the bottom end of the soft starter body 1, a display screen 5 is fixedly connected to the side wall of the soft starter body 1, and a plurality of groups of buttons 6 are arranged on the side wall of the soft starter body 1 below the display screen 5;

[0037] The heat dissipation mechanism 2 includes two sets of slide rails 201, which are fixedly connected to the outer wall of the soft starter body 1. The side walls of the two sets of slide rails 201 are respectively slidably connected with a set of sliding bars 202. The side walls of the two sets of sliding bars 202 are fixedly connected with a fixed frame 203. The inner wall of the fixed frame 203 is fixedly connected with multiple sets of heat dissipation fans 204. The inner wall of the soft starter body 1 is provided with a heat conduction groove 205 located directly above the heat dissipation fan 204. The top of the fixed frame 203 is fixedly connected with multiple sets of pull rods 206. The top of the pull rod 206 extends to the top of the soft starter body 1. The tops of the multiple groups of pull rods 206 are slidably connected to a group of scrapers 207, the inner walls of the scrapers 207 are fixedly connected to two groups of rubber strips 208, the inner wall of the fixed frame 203 is fixedly connected to a filter 209, the filter 209 is located below the cooling fan 204, the inner wall of the fixed frame 203 is slidably connected to a scraper 210, the scraper 210 is attached to the bottom of the filter 209, one end of the scraper 210 is fixedly connected to a sliding frame 211, the side wall of the fixed frame 203 is provided with a synchronous belt 212, the outer wall of the synchronous belt 212 is fixedly connected to a push rod 213, and the sliding The movable frame 211 is slidably sleeved on the outer wall of the push rod 213, a first gear 214 is fixedly connected to a set of rotating shafts of the synchronous belt 212, the inner wall of the fixed frame 203 is rotatably connected to a second gear 215 extending to the outside of the fixed frame 203, the first gear 214 is meshed with the second gear 215, the side wall of the soft starter body 1 is fixedly connected to a rack 216, the second gear 215 is meshed with the rack 216, the bottom end of the fixed frame 203 is fixedly connected to a sleeve 217, the inner wall of the sleeve 217 is slidably sleeved with a slide bar 218, and the two ends of the slide bar 218 are respectively extended from the sleeve Both ends of the tube 217 extend to the outside of the sleeve 217, one end of the slide rod 218 is fixedly connected to the abutment 219, the side wall of the starter is fixedly connected to a plurality of inclined blocks 220, the other end of the slide rod 218 is fixedly connected to a slap plate 221, the side wall of the slap plate 221 is attached to the side wall of the fixed frame 203, the slap plate 221 is provided with a rubber pad at the contact position with the fixed frame 203, the side wall of the slide rod 218 is fixedly connected to two groups of first return springs 222 located inside the sleeve 217, and the end of the first return spring 222 is fixedly connected to the inner wall of the sleeve 217.

[0038] The fan drives the airflow through the heat conduction groove 205, thereby taking away the heat emitted from the inside of the soft starter body 1. In the process of the airflow being driven by the fan, the airflow passes through the filter plate of the filter screen 209, thereby filtering out a large amount of dust, so that there will not be too much dust in the heat conduction groove 205. After a period of use, the scraper 207 is pushed to Figure 2 In the state shown in , the scraper 207 is aligned with the heat-conducting groove 205, and then the fixing frame 203 is pulled downward, so that the fixing frame 203 drives the scraper 207 to slide inside the heat-conducting groove 205 through the pull rod 206, thereby scraping off the dust adhered to the inner wall of the heat-conducting groove 205;

[0039] In the above process, the fixed frame 203 drives the second gear 215 to move downward. At this time, due to the meshing between the second gear 215 and the rack 216, the second gear 215 rotates. The second gear 215 drives the first gear 214 to rotate during the rotation. The first gear 214 drives the synchronous belt 212 to rotate. The synchronous belt 212 drives the push rod 213 to rotate during the rotation, thereby reciprocatingly pushing the sliding frame 211 to slide on the side wall of the fixed frame 203. During the sliding of the sliding frame 211, the scraper 210 is driven to slide continuously. The scraper 210 scrapes off the dust adhering to the bottom of the filter 209, and then pushes the fixed frame 203 upward to reset the fixed frame 203. During the reset of the fixed frame 203, the second gear 215 rotates in the opposite direction, so that the first gear 214 rotates in the opposite direction. At this time, the synchronous belt 212 drives the push rod 213 to rotate in the opposite direction, so that the sliding frame 211 scrapes the bottom of the filter 209 again with the moving scraper 210. After the fixed frame 203 is reset, the scraper 207 slides out from above the heat conduction groove 205;

[0040] At this time, the scraper 207 is pushed so that the scraper 207 covers the top of the connecting mechanism 3, and the wire connected to the connecting mechanism 3 is wrapped and clamped by the rubber strip 208, so that the connection between the wire and the conductive sheet 301 will not be exposed to the outer wall, thereby preventing problems such as leakage. In the process of pushing the fixed frame 203 downward or upward, the fixed frame 203 drives the sleeve 217 to move upward or downward, and drives the slide bar 218 to move during the movement of the sleeve 217, so that the slide bar 218 drives the abutment 219 to move. During the movement, the abutment 219 is pushed by the inclined block 220 to slide into the sleeve 217, thereby pushing the slide bar 218 to slide inside the sleeve 217 and The first return spring 222 is compressed, so that the slide bar 218 pushes the clapping plate 221 to separate from the fixed frame 203. After the abutment joint 219 slides over a group of inclined blocks 220, the first return spring 222 pushes the slide bar 218 to return, so that the slide bar 218 drives the clapping plate 221 to clap on the side wall of the fixed frame 203, so that the scraper 210 scrapes off the dust on the filter 209. The clapping plate 221 is used to clap on the fixed frame 203, so that the fixed frame 203 vibrates, preventing the dust scraped off by the scraper 210 from continuing to adhere to the scraper 210 or the filter 209, and allowing the dust on the filter 209 that has not been scraped off to be shaken off.

[0041] Please refer to Figures 1 to 8The top of the soft starter body 1 is provided with a connecting mechanism 3, which includes multiple groups of conductive sheets 301, which are fixedly connected to the top of the soft starter body 1, and the top of the soft starter body 1 is rotatably connected with multiple groups of pressing blocks 302, which are respectively located beside a group of conductive sheets 301, and the side walls of the pressing blocks 302 are provided with multiple groups of protrusions, and the side walls of the multiple groups of pressing blocks 302 are respectively hinged with a group of push rods 303, and the ends of the multiple groups of push rods 303 are hinged with a group of limiting rods 304, and the bottom ends of the limiting rods 304 are provided with multiple groups of limiting grooves 305, and the top of the soft starter body 1 is slidably connected to the soft starter body 1. A plurality of limit blocks 306 extending to the inside of the soft starter body 1 are connected, the top of the limit block 306 is a one-way inclined surface, and the top inclined surface of the limit block 306 matches the limit groove 305, and the side walls of the plurality of limit blocks 306 are respectively provided with a group of sliding grooves 307, and the inner wall sliding sleeve of the sliding groove 307 is provided with a pushing rod 309, and the ends of the plurality of pushing rods 309 are fixedly connected with an unlocking rod 310 extending to the outside of the soft starter body 1, and the bottom ends of the plurality of limit blocks 306 are respectively fixedly connected with a group of second return springs 308, and the bottom ends of the second return springs 308 are fixedly connected to the inner wall of the soft starter body 1.

[0042] By inserting the wires next to the multiple groups of conductive sheets 301 respectively, and then pushing the limit rod 304, the limit rod 304 simultaneously pushes the multiple groups of pressure blocks 302 to flip through the multiple groups of push rods 303. The multiple groups of pressure blocks 302 contact the wires during the flipping process, thereby pressing the wires tightly against the conductive sheet 301. In the process of pushing the limit rod 304, the limit groove 305 at the bottom end of the limit rod 304 continuously pushes the limit block 306 to compress the second return spring 308. After the limit groove 305 slides over a group of limit blocks 306, the second return spring 308 rebounds and pushes the limit block 306 to reset. After the wire is tightly pressed against the conductive sheet 301, the limit rod 304 is blocked by the limit block 306, so that the limit rod 304 cannot slide in the opposite direction, so the pressure block 302 will always press the wire against the conductive sheet 301. The unlocking rod 310 will not be loosened. When the wire needs to be separated from the conductive sheet 301, the unlocking rod 310 is pushed to make the unlocking rod 310 slide into the inside of the soft starter body 1, so that the unlocking rod 310 drives the multiple groups of pushing rods 309 to move. During the movement of the pushing rod 309, the limit block 306 is pushed to slide downward to compress the second return spring 308, so that the limit block 306 and the limit rod 304 cannot contact each other. Then the wire can be pulled out upward to separate the wire from the conductive sheet 301, and then the unlocking rod 310 is released to make the second return spring 308 rebound and reset, so that the second return spring 308 pushes the limit block 306 to reset. During the reset of the limit block 306, the pushing rod 309 is pushed to reset through the sliding groove 307, so that the pushing rod 309 drives the unlocking rod 310 to reset.

[0043] Please refer to Figure 6The inner wall of the soft starter body 1 is provided with a mounting mechanism 4 extending to the outside of the soft starter body 1, and the mounting mechanism 4 includes two sets of fixing plates 401, the two sets of fixing plates 401 are slidably connected to the inner wall of the soft starter body 1, and the two sets of fixing plates 401 extend to the outside of the soft starter body 1, and the side walls of the two sets of fixing plates 401 are respectively hinged with two sets of connecting rods 402, and the ends of the two sets of connecting rods 402 on the same side are hinged with extrusion plates 403, and the side walls of the extrusion plates 403 extend to the outside of the soft starter body 1, and the extrusion plates One end of 403 located inside the soft starter body 1 is fixedly connected to a third return spring 404, and the end of the third return spring 404 is fixedly connected to the inner wall of the soft starter body 1, and then pushes the scraper 207 to make the scraper 207 slide above the conductive sheet 301. During this process, the rubber strip 208 contacts the obstruction of the wire, causing the rubber strip 208 to deform, so that the rubber strip 208 is clamped and wrapped around the outside of the wire, thereby achieving the purpose of quickly and firmly connecting the conductor to the soft starter body 1.

[0044] When the soft starter body 1 is installed inside the power distribution cabinet, a mounting strip is provided inside the existing power distribution cabinet. By pushing the two groups of extrusion plates 403 to slide inside the soft starter body 1, the two groups of extrusion strips push the two groups of fixed plates 401 away from each other through the two groups of connecting rods 402, and the two groups of extrusion plates 403 compress the two groups of third reset springs 404 respectively, and then the soft starter body 1 is attached to the mounting strip, and then the two groups of extrusion plates 403 are released, so that the two groups of third reset springs 404 push the two groups of extrusion plates 403 to reset. At this time, the two groups of extrusion plates 403 drive the two groups of fixed plates 401 to approach each other through the connecting rod 402, so that the two groups of fixed plates 401 clamp the mounting strip, so that the soft starter body 1 can be quickly and conveniently fixed and installed inside the power distribution cabinet.

[0045] When in use, the fan blows air through the inside of the heat conduction groove 205, thereby driving the heat dissipated by the soft starter body 1, thereby extending the service life of the soft starter body, and the scraper 207 can scrape off the dust stuck to the inside of the heat conduction groove 205 by regularly pushing and pulling the fixed frame 203 up and down. In the process of pulling the fixed frame 203 up and down, the scraper 210 reciprocates at the bottom end of the filter 209, thereby scraping off and cleaning the dust at the bottom end of the filter 209, and in the process of cleaning, the clapping plate 221 is driven to clap the fixed frame 203, so that the dust on the filter 209 can be removed more efficiently, so that the entire air duct will not be blocked by dust, thereby ensuring the heat dissipation effect.

[0046] Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A motor soft starter, comprising a soft starter body (1), characterized in that: A heat dissipation mechanism (2) is provided at the bottom end of the soft starter body (1); a display screen (5) is fixedly connected to the side wall of the soft starter body (1); and a plurality of groups of buttons (6) are provided on the side wall of the soft starter body (1) below the display screen (5); The heat dissipation mechanism (2) comprises two groups of slide rails (201), the two groups of slide rails (201) are fixedly connected to the outer wall of the soft starter body (1), the side walls of the two groups of slide rails (201) are respectively slidably connected to a group of slide bars (202), the side walls of the two groups of slide bars (202) are fixedly connected to a fixed frame (203), the inner wall of the fixed frame (203) is fixedly connected to a plurality of groups of heat dissipation fans (204), and the inner wall of the soft starter body (1) is provided with a heat dissipation fan (204) is a heat conduction groove (205) directly above the fixing frame (203), the top of the fixing frame (203) is fixedly connected to a plurality of pull rods (206), the top of the pull rods (206) extends to the top of the soft starter body (1), the tops of the plurality of pull rods (206) are respectively slidably connected to a group of scrapers (207), the inner walls of the scrapers (207) are fixedly connected to two groups of rubber strips (208), the inner wall of the fixing frame (203) is fixedly connected to a filter screen (209), the The filter screen (209) is located below the heat dissipation fan (204); the inner wall of the fixed frame (203) is slidably connected to a scraper (210); the scraper (210) is attached to the bottom end of the filter screen (209); one end of the scraper (210) is fixedly connected to a sliding frame (211); a synchronous belt (212) is provided on the side wall of the fixed frame (203); a push rod (213) is fixedly connected to the outer wall of the synchronous belt (212); the sliding frame (211) is slidably connected to the inner wall of the fixed frame (203); The movable sleeve is provided on the outer wall of the push rod (213); a first gear (214) is fixedly connected to a set of rotating shafts of the synchronous belt (212); a second gear (215) extending to the outside of the fixed frame (203) is rotatably connected to the inner wall of the fixed frame (203); the first gear (214) is meshed with the second gear (215); a rack (216) is fixedly connected to the side wall of the soft starter body (1); and the second gear (215) is meshed with the rack (216); A connection mechanism (3) is provided at the top of the soft starter body (1), wherein the connection mechanism (3) comprises a plurality of groups of conductive sheets (301), and the plurality of groups of conductive sheets (301) are fixedly connected to the top of the soft starter body (1); The top of the soft starter body (1) is rotatably connected to a plurality of groups of pressure blocks (302), the plurality of groups of pressure blocks (302) are respectively located beside a group of conductive sheets (301), the side walls of the pressure blocks (302) are provided with a plurality of groups of protrusions, the side walls of the plurality of groups of pressure blocks (302) are respectively hinged with a group of push rods (303), the ends of the plurality of groups of push rods (303) are hinged with a group of limiting rods (304), and the bottom ends of the limiting rods (304) are provided with a plurality of groups of limiting grooves (305); The top of the soft starter body (1) is slidably connected to a plurality of groups of limit blocks (306) extending into the interior of the soft starter body (1); the top of the limit block (306) is a one-way inclined surface, and the inclined surface of the top of the limit block (306) matches the limit groove (305); the side walls of the plurality of groups of limit blocks (306) are respectively provided with a group of sliding grooves (307); the inner walls of the sliding grooves (307) are slidably sleeved with pushing rods (309); the ends of the plurality of groups of pushing rods (309) are fixedly connected to unlocking rods (310) extending to the outside of the soft starter body (1).

2. A motor soft starter according to claim 1, characterized in that: The bottom end of the fixed frame (203) is fixedly connected to a sleeve (217), the inner wall of the sleeve (217) is slidably sleeved with a slide rod (218), two ends of the slide rod (218) respectively extend from two ends of the sleeve (217) to the outside of the sleeve (217), one end of the slide rod (218) is fixedly connected to a butt joint (219), and the side wall of the starter is fixedly connected to a plurality of groups of inclined blocks (220).

3. A motor soft starter according to claim 2, characterized in that: The other end of the sliding rod (218) is fixedly connected to a slapping plate (221), the side wall of the slapping plate (221) is attached to the side wall of the fixed frame (203), and a rubber pad is provided at the contact position of the slapping plate (221) with the fixed frame (203).

4. A motor soft starter according to claim 2, characterized in that: Two groups of first return springs (222) located inside the sleeve (217) are fixedly connected to the side wall of the sliding rod (218), and the ends of the first return springs (222) are fixedly connected to the inner wall of the sleeve (217).

5. A motor soft starter according to claim 1, characterized in that: A group of second return springs (308) are respectively fixedly connected to the bottom ends of the plurality of groups of limit blocks (306), and the bottom ends of the second return springs (308) are fixedly connected to the inner wall of the soft starter body (1).

6. A motor soft starter according to claim 1, characterized in that: The inner wall of the soft starter body (1) is provided with a mounting mechanism (4) extending to the outside of the soft starter body (1), and the mounting mechanism (4) comprises two groups of fixing plates (401), the two groups of fixing plates (401) are slidably connected to the inner wall of the soft starter body (1), and the two groups of fixing plates (401) extend to the outside of the soft starter body (1), and the side walls of the two groups of fixing plates (401) are respectively hinged with two groups of connecting rods (402).

7. A motor soft starter according to claim 6, characterized in that: The ends of the two groups of connecting rods (402) on the same side are hinged with an extrusion plate (403), the side wall of the extrusion plate (403) extends to the outside of the soft starter body (1), one end of the extrusion plate (403) located inside the soft starter body (1) is fixedly connected to a third return spring (404), and the end of the third return spring (404) is fixedly connected to the inner wall of the soft starter body (1).

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