CN210297577U - High-voltage soft starter - Google Patents
High-voltage soft starter Download PDFInfo
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- CN210297577U CN210297577U CN201921491683.XU CN201921491683U CN210297577U CN 210297577 U CN210297577 U CN 210297577U CN 201921491683 U CN201921491683 U CN 201921491683U CN 210297577 U CN210297577 U CN 210297577U
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Abstract
The utility model discloses a high-voltage soft starter, which comprises a body and an outer explosion-proof cabinet, wherein the body comprises a frame, a control panel, a high-voltage power unit, a current transformer, a vacuum contactor, an overvoltage protector and a voltage transformer are assembled on the frame, and wheels are assembled at the bottom of the frame; the outer explosion-proof cabinet comprises a shell, a partition plate is arranged in the shell to form a first cavity and a second cavity, the first cavity is used for accommodating the frame and is provided with a front door, a track matched with wheels is arranged in the first cavity, a plurality of first through holes for communicating the first cavity with the second cavity are formed in the partition plate, and a static contact is arranged in the second cavity at the first through holes; the frame is assembled in the first cavity, and a moving contact penetrating in the current transformer is connected with the fixed contact. The utility model discloses a high-pressure soft starter is rational in infrastructure, through at frame bottom assembly wheel, set up in outer explosion-proof cabinet with wheel complex track, make the assembly convenient and fast more between body and the outer explosion-proof cabinet, safe and reliable, easy dismounting.
Description
Technical Field
The utility model relates to a soft starter technical field, in particular to high-pressure soft starter.
Background
The soft starter is a motor controller integrating the functions of soft start, soft stop, light load energy saving and multiple protection functions of a motor, and mainly comprises a three-phase anti-parallel thyristor and an electronic control circuit thereof, wherein the three-phase anti-parallel thyristor is connected between a power supply and a controlled motor in series. When the motor is soft started, the output voltage of the thyristor is gradually increased, the motor is gradually accelerated until the thyristor is fully conducted, and the motor works on the mechanical characteristic of rated voltage, so that smooth starting is realized, starting current is reduced, and overcurrent tripping during starting is avoided; when the motor reaches the rated rotation speed, the starting process is finished, the soft starter is automatically switched to the bypass contactor to replace the thyristor which has finished the task, rated voltage is provided for the normal operation of the motor, so that the heat loss of the thyristor is reduced, the service life of the soft starter is prolonged, and harmonic pollution of a power grid is avoided. The soft stop and the soft start process are opposite, the voltage is gradually reduced, the rotating speed is gradually reduced to zero, and the torque impact caused by free stop is avoided.
The high-pressure soft starter of 3 Kv-10 Kv is widely applied to the fields of machine manufacturing, cement production, metallurgy, mining, chemical engineering, water treatment and the like. The mining high-voltage soft starter needs to be combined with an explosion-proof cabinet for use, and the existing high-voltage soft starter and the explosion-proof cabinet are fixed in mounting structure, so that the problem of inconvenience in assembly and maintenance exists.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a high pressure soft starter convenient to it is rational in infrastructure, convenient assembling to be not enough to prior art. The technical scheme is as follows:
a high-voltage soft starter comprises a body and an outer explosion-proof cabinet;
the body includes:
the device comprises a frame, a control panel, a high-voltage power unit, a current transformer, a vacuum contactor, an overvoltage protector and a voltage transformer, wherein the frame is provided with a control panel, a high-voltage power unit, a current transformer, a vacuum contactor, an overvoltage protector and a voltage transformer;
the outer explosion-proof cabinet includes:
the bicycle frame comprises a shell, a first cavity and a second cavity are formed in the shell, a partition plate is arranged in the shell, the first cavity is used for accommodating the bicycle frame and is provided with a front door, a track matched with a wheel is arranged in the first cavity, a plurality of first through holes communicated with the first cavity and the second cavity are formed in the partition plate, and a static contact is arranged in the second cavity at the first through holes;
the frame is assembled in the first cavity, and a moving contact penetrating in the current transformer is connected with the fixed contact.
As a further improvement, the first cavity is provided with an insulating plate, the insulating plate is provided with a plurality of second through holes corresponding to the first through holes, the outer explosion-proof cabinet further comprises a driving mechanism, the driving mechanism is connected with the insulating plate, the driving mechanism can drive the insulating plate to the second through holes are communicated with the first through holes.
As a further improvement of the utility model, actuating mechanism is link mechanism, link mechanism includes buckle door pole, first pivot, first push rod, second push rod, buckle door pole and first push rod all with first pivot is connected, connect through a plurality of swing arms between second push rod and the first push rod, the external moment drive first pivot is rotated, first pivot drive buckle door pole and first push rod motion, first push rod passes through the swing arm and drives the motion of second push rod.
As a further improvement of the utility model, the outer explosion-proof cabinet still includes:
the locking mechanism is connected with the front door, the front door can be driven to lock the insulating plate when opened, and the front door can be driven to unlock the insulating plate when closed.
As a further improvement of the utility model, be close to on the baffle first cavity one side is equipped with first mounting panel, the insulation board is located on the first mounting panel, actuating mechanism with first mounting panel is connected, actuating mechanism can drive first mounting panel moves along vertical direction.
As a further improvement of the present invention, the locking mechanism includes a locking block, a locking rod, and a return spring, the inner wall of the first cavity is provided with a limit buckle matched with the locking rod, the locking rod is inserted into the limit buckle, the return spring is sleeved on the locking rod, the locking rod is further provided with a first pin shaft and a second pin shaft, one end of the return spring is connected with the limit buckle, the other end of the return spring is connected with the first pin shaft, the first mounting plate is provided with a locking groove matched with the locking block, and the locking block is arranged at the front end of the locking rod;
when the front door is closed, the first pin shaft compresses the return spring, and the locking rod moves the locking block out of the locking groove to form unlocking;
when the front door is opened, the return spring drives the locking rod to move under the action of restoring force, and after the second pin shaft is abutted to the limiting buckle, the locking block is arranged in the locking groove to form locking.
As a further improvement of the utility model, be equipped with on the frame:
the second mounting panel of two parallel arrangement, be equipped with the slide rail on the second mounting panel, the control type electrical part and the control circuit assembly of high pressure soft starter in on the control panel, the control panel with sliding connection, the control panel accessible the slide rail is outwards taken out.
As a further improvement of the utility model, be equipped with on the frame:
a third mounting plate and an insulating mounting frame;
a first mounting hole is formed in the frame;
a first waist-shaped hole and a second waist-shaped hole are formed in the third mounting plate, the first waist-shaped hole extends in the vertical direction, and the second waist-shaped hole extends in a transverse straight line;
a second mounting hole is formed in the insulating mounting frame;
the third mounting plate is horizontally arranged on the frame, and is tightly matched and fixed on the frame through the matching of a fastener and the first mounting hole as well as the first waist-shaped hole;
the insulating mounting frame is vertically arranged on the third mounting plate, and is tightly matched and fixed on the third mounting plate through the matching of a fastener, the second mounting hole and the second waist-shaped hole;
the current transformer is assembled in the insulating mounting frame.
As a further improvement of the utility model, the three-phase current transformers are respectively assembled in three groups of insulating mounting frames; the three groups of insulating mounting frames are respectively a central insulating mounting frame and lateral insulating mounting frames symmetrically distributed on two sides of the central insulating mounting frame, and the two groups of lateral insulating mounting frames are fixed on the third mounting plate through the matching and tight fit of fasteners, second mounting holes and second waist-shaped holes; the insulating installing frame in center passes through the fastener and is fixed in with the cooperation tight fit of fixed orifices with the second mounting hole on the third mounting panel, the fixed orifices sets up on the third mounting panel.
The utility model has the advantages that:
the utility model discloses a high-pressure soft starter is rational in infrastructure, through at frame bottom assembly wheel, set up in outer explosion-proof cabinet with wheel complex track, make the assembly convenient and fast more between body and the outer explosion-proof cabinet, simultaneously, after the assembly is accomplished, the moving contact on static contact and the frame in the outer explosion-proof cabinet is connected, safe and reliable, easy dismounting.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following preferred embodiments are described in detail with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic view of the overall structure of a frame according to an embodiment of the present invention;
FIG. 2 is a schematic view of the overall structure of the frame according to the embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a control panel according to an embodiment of the present invention;
fig. 4 is a first schematic structural diagram of a slide rail according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a slide rail according to an embodiment of the present invention;
fig. 6 is a first schematic structural diagram of an insulating mounting frame according to an embodiment of the present invention;
fig. 7 is a second schematic structural view of the insulating mounting frame according to the embodiment of the present invention;
fig. 8 is a schematic structural diagram of a third mounting plate in the embodiment of the present invention;
fig. 9 is a schematic view of the overall structure of the outer explosion-proof cabinet in the embodiment of the present invention;
fig. 10 is a schematic view of the overall structure of the outer explosion-proof cabinet in the embodiment of the present invention;
fig. 11 is a partial structural schematic diagram of an outer explosion-proof cabinet in the embodiment of the present invention;
fig. 12 is a schematic view of a partial structure of an outer explosion-proof cabinet in an embodiment of the present invention;
fig. 13 is a first schematic structural diagram of a locking mechanism and a link mechanism in an embodiment of the present invention;
fig. 14 is a second schematic structural view of the locking mechanism and the link mechanism in the embodiment of the present invention;
fig. 15 is a schematic structural diagram of a locking mechanism in an embodiment of the present invention;
fig. 16 is a partial schematic structural view of a locking mechanism in an embodiment of the present invention;
fig. 17 is a schematic structural diagram of a mounting plate in the embodiment of the present invention.
Description of the labeling: 100. a frame; 101. a second mounting plate; 102. a wheel; 103. a third mounting plate; 1031. A first waist-shaped hole; 1032. a second waist-shaped hole; 1033. a fixing hole; 1034. a pipe clamp; 104. a card slot; 110. a control panel; 111. an aviation plug; 120. a protection plate; 121. a nut; 130. a high voltage power unit; 140. a current transformer; 141. a moving contact; 150. a vacuum contactor; 160. an overvoltage protector; 170. a slide rail; 171. an outer rail; 172. a middle rail; 173. an inner rail; 174. a limiting block; 175. unlocking the handle; 180. a voltage transformer; 190. an insulating mounting frame; 1901. a central insulating mounting frame; 1902. a lateral insulation mounting frame; 1903. insulating rib plates; 1904. a conductive plate; 1905. a conduit; 1906. an insulating laminate; 1907. a leg portion; 1908. a second mounting hole; 210. a housing; 211. a limit buckle; 220. a partition plate; 221. A first through hole; 222. static contact; 230. an insulating plate; 231. a second through hole; 240. a first mounting plate; 241. a waist-shaped groove; 242. a limit bolt; 243. a locking groove; 250. a locking mechanism; 251. a locking block; 252. a lock lever; 253. a return spring; 254. a first pin shaft; 255. a second pin shaft; 256. a gasket; 260. a link mechanism; 261. a door latch lever; 262. a first rotating shaft; 263. a first push rod; 264. a second push rod; 265. swinging arms; 270. a track; 280. a second rotating shaft; 281. and a clamping block.
Detailed Description
The present invention is further described with reference to the following drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.
As shown in fig. 1-17, in order to implement the high voltage soft starter of the embodiment of the present invention, the high voltage soft starter includes a body, including a body and an outer explosion-proof cabinet.
The body comprises a frame 100, the frame 100 is provided with high-voltage soft starter components such as a control panel 110, a high-voltage power unit 130, a current transformer 140, a vacuum contactor 150, an overvoltage protector 160, a voltage transformer 180 and the like, and the bottom of the frame 100 is provided with wheels 102. In the present embodiment, four sets of wheels 102 are mounted on the bottom of the frame 100, two sets of the four sets of wheels 102 are disposed on the same side, and the other two sets are disposed on the opposite side and are disposed opposite to each other.
As shown in fig. 1-5, the frame 100 is provided with two second mounting plates 101 and a control panel 110, which are arranged in parallel, the second mounting plates 101 are provided with slide rails 170, the control panel 110 is slidably connected with the slide rails 170, and the control panel 110 can be drawn out through the slide rails 170. As shown in fig. 3, the control electric devices and control circuits of the high voltage soft starter are mounted on a control panel 110, including an air switch/relay/protector/power supply/plug, etc. The control electric device is connected with the high-voltage soft starter components such as the high-voltage power unit 130 and the like through a plurality of aviation plugs 111, and is convenient to rapidly disassemble and replace.
The vehicle frame 100 is provided with a guard plate 120, the guard plate 120 is located at the rear end of the control panel 110, and the guard plate 120 can abut against the rear end of the control panel 110. Specifically, the fender 120 is assembled to the frame 110 by a bolt, and a plum-blossom handle nut 121 is assembled to the bolt.
As shown in fig. 4 and 5, the sliding rail 170 includes an outer rail 171, a middle rail 172, and an inner rail 173, the outer rail 173 is fixedly connected to the second mounting plate 101, the inner rail 173 is fixedly connected to the control panel 110, and the outer rail 171 and the inner rail 173 are connected by the middle rail 172. The front end of the outer rail 171 is provided with a stopper 174, and the stopper 174 is used for abutting against the middle rail 172 and the inner rail 171 for limiting.
An unlocking knob 175 is connected to the rear end of the inner rail 173, and the control panel 110 can be drawn outward after unlocking.
Specifically, the second mounting plate 101 is an L-shaped plate, one side of which is assembled to the frame 100, and the inner rail 173 is assembled to the other side of the L-shaped plate. The L-shaped plate enables assembly to be more convenient and faster.
When the control type electric device and the control circuit on the control panel 110 need to be overhauled and replaced, only the protection plate 120 needs to be detached, and the control panel 110 is pulled out through the unlocking handle 175, so that the overhauling and replacing efficiency can be effectively improved.
As shown in fig. 6 to 8, the movable contact 141 of the high voltage soft starter is mounted in the insulating mounting frame 190, and the insulating mounting frame 190 is mounted on the vehicle frame 100 through the third mounting plate 103, so that the movable contact 141 is assembled to the vehicle frame 100 to form a part of the high voltage soft starter. The three-phase transformer matched with a power supply, the moving contacts 141 of the high-voltage soft starter are provided with three groups, and the three groups of moving contacts 141 are respectively arranged in respective insulating mounting frames 190 and then are fixed on the same third mounting plate 103 in a linear arrangement.
Specifically, the frame 100 is provided with a first mounting hole, the third mounting plate 103 is provided with a first waist-shaped hole 1031 and a second waist-shaped hole 1032, the insulating mounting frame 190 is provided with a second mounting hole 1908, the third mounting plate 103 is horizontally disposed on the frame 100, and the third mounting plate 103 is tightly fitted and fixed on the frame 100 through the cooperation of a fastener with the first mounting hole and the first waist-shaped hole 1031.
The insulating mounting frame 190 is vertically disposed on the third mounting plate 103, and the insulating mounting frame 190 is tightly fitted and fixed to the third mounting plate 103 by the engagement of the fasteners with the second mounting holes 1908 and the second kidney-shaped holes 1032.
As a first technical solution of the present embodiment, the first waist-shaped hole 1031 extends in the vertical direction, and the second waist-shaped hole 1032 extends linearly in the transverse direction.
As a second technical solution of the present embodiment, the first waist-shaped hole 1031 extends transversely and linearly, and the second waist-shaped hole 1032 extends in the vertical direction.
In the first technical solution, the first mounting hole and the second mounting hole 1908 are generally circular threaded holes, and when the fastener is engaged with the first mounting hole and the first waist-shaped hole 1031, the third mounting plate 103 can be assembled to the frame 100 after the position in the vertical direction can be adjusted; when the fastener is engaged with the second mounting hole 1908 and the second waist-shaped hole 1032, the insulating mounting frame 190 can be assembled to the third mounting plate 103 after the position in the horizontal direction is adjusted. In this way, the installation position of the movable contact 141 in the vertical direction and the horizontal direction can be adjusted to match the use in various environments. For example, in different installation environments, when the positions of the static contacts 222 on the explosion-proof cabinet in the vertical direction are different, or the positions in the horizontal direction are different, or the positions in the vertical direction and the horizontal direction are different, the two-axis adjustment of the position of the movable contact 141 can be realized by adjusting the position of the third mounting plate 103 fixed on the frame 100 and the position of the insulating mounting frame 190 fixed on the third mounting plate 103, where the only purpose of the position adjustment of the movable contact is that the position of the movable contact 141 is aligned with the position of the static contact 222 on the explosion-proof cabinet in the usage environment of the high-voltage soft starter.
In the second technical solution, the first mounting hole and the second mounting hole 1908 are circular threaded holes, and when the fastener is matched with the first mounting hole and the first waist-shaped hole 1031, the third mounting plate 103 can be assembled on the frame 100 after the position in the horizontal direction can be adjusted; when the fasteners are matched with the second mounting holes 1908 and the second waist-shaped holes 1032, the insulating mounting frame 190 can be assembled on the third mounting plate 103 after the position in the vertical direction can be adjusted. In this way, the installation position of the movable contact 141 in the vertical direction and the horizontal direction can be adjusted to match the use in various environments. For example, in different installation environments, when the positions of the static contacts 222 on the explosion-proof cabinet in the vertical direction are different, or the positions in the horizontal direction are different, or the positions in the vertical direction and the horizontal direction are different, two-axis adjustment of the position of the movable contact 141 can be achieved by adjusting the position of the third mounting plate 103 fixed on the vehicle frame 100 and adjusting the position of the insulating mounting frame 190 fixed on the third mounting plate 103, where the only purpose of adjusting the position of the movable contact 141 is that the position of the movable contact 141 is aligned with the position of the static contact 222 on the explosion-proof cabinet in the usage environment of the high-voltage soft starter.
Specifically, the mounting structure is used for mounting three-phase moving contacts of the high-voltage soft starter, and the three-phase moving contacts are respectively assembled in three groups of insulating mounting frames 190; the three groups of insulating mounting frames 190 are respectively a central insulating mounting frame 1901 and lateral insulating mounting frames 1902 symmetrically distributed on the side of the central insulating mounting frame 1901, and the two groups of lateral insulating mounting frames 1902 are fixed on the third mounting plate 103 through the matching and tight-fitting of fasteners, the second mounting holes 1908 and the second kidney-shaped holes 1032; the central insulating frame 1901 is fixed to the third mounting plate 103 by a fastener, a second mounting hole 1908, and a fixing hole 1033, and the fixing hole 1033 is formed in the third mounting plate 103. After the three groups of insulating mounting frames 190 are fixed on the third mounting plate 103, the positions in the vertical direction are uniformly adjusted; meanwhile, in the horizontal direction, the position of the central insulating mounting frame 1901 is unchanged, and the horizontal distance between the lateral insulating mounting frame 1902 and the central insulating mounting frame 1901 is adjusted by adjusting the positions of the two sets of lateral insulating mounting frames 1902, so that only the mounting positions of the two sets of lateral insulating mounting frames 1902 need to be adjusted, and the three sets of lateral insulating mounting frames 190 do not need to be adjusted, thereby being more labor-saving.
The cross section of the insulating mounting frame 190 is of a horseshoe-shaped structure, so that the insulating protection effect can be well achieved, and the conduction possibility among three-phase moving contacts is cut off.
Specifically, an insulating laminate 1906 is provided in the insulating mounting frame 190, a conductive plate 1904 is fastened to the insulating laminate 1906, and the conductive plate 1904 extends toward the opening side of the insulating mounting frame 190; the moving contact 141 is tightly fitted and fixed on the conductive plate 1904 and is electrically connected with the conductive plate 1904. Here, the conductive plate 1904 is fixed to the insulating layer plate 1906 by a bolt and a nut 121 in a tight fit, and the movable contact is fixed to the conductive plate 1904 by a bolt and a nut 121 in a tight fit.
The current transformer 140 of the high-voltage soft starter is fixed on the moving contact 141 through a central through hole in the current transformer.
A leg portion 1907 extends from the outer edge of the insulating mounting frame 190 to the opening side thereof, and the second mounting hole 1908 is disposed in the leg portion 1907.
Insulating rib plates 1903 are arranged on two sides of the insulating layer plate 1906 in the insulating mounting frame 190, so that the supporting strength of the insulating mounting frame 190 is improved.
A pipe clamp 1034 is arranged on the back plate of the third mounting plate 103, and the wire pipe 1905 of the high-pressure soft starter enters the back plate of the third mounting plate 103 and then is fixed in the pipe clamp 1034. The wire tube 1095 of the high-voltage soft starter is arranged in a unified mode, unnecessary potential safety hazards caused by disordered wiring are avoided, and the whole size of the high-voltage soft starter is reduced.
As shown in fig. 9-12, the external explosion-proof cabinet includes a housing 210, a locking mechanism 250 and a driving mechanism, a partition 220 is disposed in the housing 210 and forms a first cavity and a second cavity, the first cavity is provided with a front door, the partition 220 is provided with a plurality of first through holes 221 for communicating the first cavity with the second cavity, a stationary contact 222 is disposed in the second cavity at the first through hole 221, an insulating plate 230 is disposed in the first cavity, and the insulating plate 230 is provided with a plurality of second through holes 231 corresponding to the first through holes 221.
The locking mechanism 250 is connected with the front door, the locking mechanism 250 can be driven to lock the insulating plate 230 when the front door is opened, and the locking mechanism 250 can be driven to unlock the insulating plate 230 when the front door is closed. The driving mechanism is connected to the insulating plate 230, and the driving mechanism can drive the insulating plate 230 to pass through the second through hole 231 and the first through hole 221 after the insulating plate 230 is unlocked.
As shown in fig. 17, a first mounting plate 240 is disposed on one side of the partition plate 220 close to the first cavity, the insulating plate 230 is disposed on the first mounting plate 240, a plurality of waist-shaped grooves 241 are disposed on the first mounting plate 240, the waist-shaped grooves 241 are disposed along a vertical direction, a limit bolt 242 is disposed in the waist-shaped groove 241, and the driving mechanism can drive the first mounting plate 240 to move along a length direction of the waist-shaped groove 241. In this embodiment, the number of the waist-shaped grooves 241 is two.
As shown in fig. 13-16, the locking mechanism 250 includes a locking block 251, a locking rod 252, and a return spring 253, the inner wall of the first cavity is provided with a limit buckle 211 matched with the locking rod 252, the locking rod 252 is inserted into the limit buckle 211, the return spring 253 is sleeved on the locking rod 252, the locking rod 252 is further provided with a first pin shaft 254 and a second pin shaft 255, one end of the return spring 253 is connected with the limit buckle 211, the other end of the return spring is connected with the first pin shaft 254, the first mounting plate 240 is provided with a locking groove 243 matched with the locking block 251, and the locking block 251 is disposed at the front end of the locking rod 252.
Preferably, the locking mechanism 250 further includes a washer 256, one end of the washer 256 is connected to the first pin 254, and the other end is connected to the return spring 253.
When the front door is closed, the first pin 254 compresses the return spring 253, and the locking rod 252 moves the locking block 251 out of the locking groove 243, so that unlocking is realized.
When the front door is opened, the return spring 253 drives the locking rod 252 to move under the action of the return force, and the locking block 251 is placed in the locking groove 243 after the second pin shaft 255 is abutted to the limit buckle 211, so that locking is realized. The locked state is the initial state.
As shown in fig. 13 to 14, in the present embodiment, the driving mechanism is a link mechanism 260, the link mechanism 260 includes a door-locking lever 261, a first rotating shaft 262, a first push rod 263 and a second push rod 264, the door-locking lever 261 and the first push rod 263 are both connected to the first rotating shaft 262, the second push rod 264 and the first push rod 263 are connected by a plurality of swing arms 265, an external moment drives the first rotating shaft 262 to rotate, the first rotating shaft 262 drives the door-locking lever 261 and the first push rod 263 to move, and the first push rod 263 drives the second push rod 264 to move by the swing arms 265.
In this embodiment, a clamping block 281 for clamping with the clamping groove 104 at the front end of the frame is disposed in the first cavity, the clamping block 281 is used for clamping with the clamping groove 104 to fix the frame 100, the clamping block 281 is connected with the second rotating shaft 280, and the second rotating shaft 280 is connected with the swing arm 265. When the first push rod 263 moves, the swing arm 265 drives the second shaft 280 to rotate, so as to drive the engaging block 281 to move, and the engaging block 281 is driven into the front end engaging groove 104 of the wheel 100. Preferably, the number of the snap-in blocks 281 is two.
In this embodiment, a rail 270 is disposed in the first cavity, and the wheel 102 cooperates with the rail 270 to transport the frame 100 into the first cavity.
When the vehicle frame is installed, the locking mechanism 250 is in an initial state, the front surface is in an open state, the locking block 251 is in the locking groove 243, the wheel 102 is placed on the rail 270, the vehicle frame 100 is pushed, and the clamping groove 104 at the front end of the vehicle frame 100 is in contact with the clamping block 281. Then, the front door is closed, the first pin 254 is pushed to compress the return spring 253, and the locking rod 252 moves the locking block 251 out of the locking groove 243, so that the unlocking is realized. Then, the first rotating shaft 262 is driven by an external moment, the first rotating shaft 262 drives the door buckling rod 261 and the first push rod 263 to move, the first push rod 263 drives the second push rod 264 and the second rotating shaft 280 to move through the swing arm 265, the second rotating shaft 280 lifts the clamping block 281 into the clamping groove 104, meanwhile, the second push rod 264 is driven to push up, the insulating plate 230 is pushed up to the second through hole 231 to be communicated with the first through hole 221, the movable contact 141 is connected with the fixed contact 222, and the assembly is completed.
The utility model discloses a high-pressure soft starter is rational in infrastructure, through at frame bottom assembly wheel, set up in outer explosion-proof cabinet with wheel complex track, make the assembly convenient and fast more between body and the outer explosion-proof cabinet, simultaneously, after the assembly is accomplished, the moving contact on static contact and the frame in the outer explosion-proof cabinet is connected, safe and reliable, easy dismounting.
The above embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutes or changes made by the technical personnel in the technical field on the basis of the utility model are all within the protection scope of the utility model. The protection scope of the present invention is subject to the claims.
Claims (9)
1. A high-voltage soft starter is characterized by comprising a body and an outer explosion-proof cabinet;
the body includes:
the device comprises a frame, a control panel, a high-voltage power unit, a current transformer, a vacuum contactor, an overvoltage protector and a voltage transformer, wherein the frame is provided with a control panel, a high-voltage power unit, a current transformer, a vacuum contactor, an overvoltage protector and a voltage transformer;
the outer explosion-proof cabinet includes:
the bicycle frame comprises a shell, a first cavity and a second cavity are formed in the shell, a partition plate is arranged in the shell, the first cavity is used for accommodating the bicycle frame and is provided with a front door, a track matched with a wheel is arranged in the first cavity, a plurality of first through holes communicated with the first cavity and the second cavity are formed in the partition plate, and a static contact is arranged in the second cavity at the first through holes;
the frame is assembled in the first cavity, and a moving contact penetrating in the current transformer is connected with the fixed contact.
2. The high-voltage soft starter according to claim 1, wherein an insulating plate is disposed in the first cavity, a plurality of second through holes are disposed on the insulating plate and correspond to the first through holes, the outer explosion-proof cabinet further comprises a driving mechanism, the driving mechanism is connected to the insulating plate, and the driving mechanism can drive the insulating plate until the second through holes are communicated with the first through holes.
3. The high-voltage soft starter according to claim 2, wherein the driving mechanism is a link mechanism, the link mechanism includes a latch lever, a first rotating shaft, a first push rod, and a second push rod, the latch lever and the first push rod are both connected to the first rotating shaft, the second push rod and the first push rod are connected through a plurality of swing arms, an external torque drives the first rotating shaft to rotate, the first rotating shaft drives the latch lever and the first push rod to move, and the first push rod drives the second push rod to move through the swing arms.
4. The high voltage soft starter of claim 2 wherein the outer explosion proof cabinet further comprises:
the locking mechanism is connected with the front door, the front door can be driven to lock the insulating plate when opened, and the front door can be driven to unlock the insulating plate when closed.
5. The high voltage soft starter of claim 4 wherein a first mounting plate is disposed on the side of the partition adjacent to the first chamber, the insulating plate is disposed on the first mounting plate, and the driving mechanism is coupled to the first mounting plate and drives the first mounting plate to move in a vertical direction.
6. The high-voltage soft starter according to claim 5, wherein the locking mechanism comprises a locking block, a locking rod and a return spring, a limit buckle matched with the locking rod is arranged on the inner wall of the first cavity, the locking rod is arranged in the limit buckle in a penetrating manner, the return spring is sleeved on the locking rod, a first pin shaft and a second pin shaft are further arranged on the locking rod, one end of the return spring is connected with the limit buckle, the other end of the return spring is connected with the first pin shaft, a locking groove matched with the locking block is arranged on the first mounting plate, and the locking block is arranged at the front end of the locking rod;
when the front door is closed, the first pin shaft compresses the return spring, and the locking rod moves the locking block out of the locking groove to form unlocking;
when the front door is opened, the return spring drives the locking rod to move under the action of restoring force, and after the second pin shaft is abutted to the limiting buckle, the locking block is arranged in the locking groove to form locking.
7. A high voltage soft starter as claimed in claim 1 wherein said frame is fitted with:
the second mounting panel of two parallel arrangement, be equipped with the slide rail on the second mounting panel, the control type electrical part and the control circuit assembly of high pressure soft starter in on the control panel, the control panel with sliding connection, the control panel accessible the slide rail is outwards taken out.
8. A high voltage soft starter as claimed in claim 1 wherein said frame is fitted with:
a third mounting plate and an insulating mounting frame;
a first mounting hole is formed in the frame;
a first waist-shaped hole and a second waist-shaped hole are formed in the third mounting plate, the first waist-shaped hole extends in the vertical direction, and the second waist-shaped hole extends in a transverse straight line;
a second mounting hole is formed in the insulating mounting frame;
the third mounting plate is horizontally arranged on the frame, and is tightly matched and fixed on the frame through the matching of a fastener and the first mounting hole as well as the first waist-shaped hole;
the insulating mounting frame is vertically arranged on the third mounting plate, and is tightly matched and fixed on the third mounting plate through the matching of a fastener, the second mounting hole and the second waist-shaped hole;
the current transformer is assembled in the insulating mounting frame.
9. The high-voltage soft starter according to claim 8, wherein the three-phase current transformers are respectively assembled in the three groups of insulating mounting frames; the three groups of insulating mounting frames are respectively a central insulating mounting frame and lateral insulating mounting frames symmetrically distributed on two sides of the central insulating mounting frame, and the two groups of lateral insulating mounting frames are fixed on the third mounting plate through the matching and tight fit of fasteners, second mounting holes and second waist-shaped holes; the insulating installing frame in center passes through the fastener and is fixed in with the cooperation tight fit of fixed orifices with the second mounting hole on the third mounting panel, the fixed orifices sets up on the third mounting panel.
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| CN201921491683.XU CN210297577U (en) | 2019-09-09 | 2019-09-09 | High-voltage soft starter |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110429870A (en) * | 2019-09-09 | 2019-11-08 | 苏州艾克威尔科技有限公司 | A kind of high pressure soft starting device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110429870A (en) * | 2019-09-09 | 2019-11-08 | 苏州艾克威尔科技有限公司 | A kind of high pressure soft starting device |
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