CN222884560U - Soft starter - Google Patents

Abstract

The utility model belongs to the technical field of low-voltage electrical appliances, and discloses a soft starter, which includes a bottom shell, a wiring module, a support plate and a main board. The bottom shell is provided with a first receiving groove along a first direction; the wiring module is arranged in the first receiving groove; two support plates are arranged at intervals along a second direction, and the support plates are arranged at the end of the first receiving groove; the main board is arranged on the support plate, and the main board and the wiring module are arranged at intervals. The soft starter provided by the utility model integrates the main board on the bottom shell to prevent the wires between the wiring module and the main board from hindering the disassembly and assembly of the soft starter, and the support plate is arranged at the end of the first receiving groove, and the main board is supported by two support plates, which facilitates the installation of the main board, makes the main board fixed and stable, and ensures that the main board and the wiring module are spaced apart to avoid installation interference.

Description

Soft starter

Technical Field

The utility model relates to the technical field of piezoelectric devices, in particular to a soft starter.

Background

The soft starter is a motor control device integrating the functions of soft start, soft stop, light load energy saving and various protection of the current collector. The conventional soft starter generally installs a wiring module provided with a conductive bar in a bottom shell, and fixes a main board in a top shell. The wires connected with the main board of the wiring module can prevent the soft starter from being disassembled and assembled, so that the disassembly and assembly efficiency of the soft starter is affected, and the wires can be broken or broken when the soft starter is disassembled and assembled.

Disclosure of utility model

The utility model aims to provide a soft starter which can effectively improve the disassembly and assembly efficiency and prevent the damage of wires.

To achieve the purpose, the utility model adopts the following technical scheme:

There is provided a soft starter comprising:

A bottom case provided with a first receiving groove along a first direction;

the wiring module is arranged in the first accommodating groove;

The support plates are arranged at intervals along the second direction and are arranged at the end part of the first accommodating groove;

and the main board is arranged on the supporting plate and is arranged at intervals with the wiring module.

Optionally, at least one limiting groove is formed on one side, facing the bottom of the first accommodating groove, of the supporting plate along the first direction;

the bottom shell is provided with support columns in the first accommodating grooves, the support columns are in one-to-one correspondence with the limiting grooves, and the support columns are inserted into the corresponding limiting grooves.

Optionally, a positioning groove is formed in the supporting plate, and the corresponding side edge of the main board is arranged in the positioning groove.

Optionally, the wiring module comprises a thyristor, the supporting plate is provided with a wire harness groove, and a pulse wire connected between the main board and the thyristor penetrates through the wire harness groove.

Optionally, two outer side surfaces of the bottom shell along the second direction are respectively provided with a terminal block, and a terminal cover is clamped on the terminal blocks;

The wiring module comprises an input conductive bar and an output conductive bar which are oppositely arranged along a second direction, wherein the input conductive bar and the output conductive bar respectively penetrate through the bottom shell along the second direction and extend between the terminal block and the terminal cover on the corresponding side.

Optionally, the two sides of the terminal block along the third direction are respectively provided with a first clamping part, and one side of the terminal block along the first direction, which faces the terminal cover, is provided with a positioning plate;

The terminal cover comprises a main cover plate extending along a third direction, two ends of the main cover plate are respectively provided with a clamping plate, one side of each clamping plate facing each other is respectively provided with a second clamping part, one side of the main cover plate facing the terminal table along the first direction is provided with a first stop block and a second stop block, the first stop block and the second stop block are arranged at intervals along the second direction,

The terminal block is located two between the clamping plates, the first clamping portions are clamped with the corresponding second clamping portions, the positioning plate is located between the first stop block and the second stop block, and the first stop block and the second stop block are respectively propped against corresponding sides of the positioning plate along the second direction.

Optionally, the wiring module includes a heat sink;

The soft starter further comprises a grounding sheet, wherein the grounding sheet comprises a first bending part and a second bending part which are perpendicular to each other, the first bending part extends along a first direction and is connected with one side of the heat dissipation piece along a third direction, and the second bending part extends along a second direction and penetrates out of the first accommodating groove.

Optionally, the wire connection device further comprises a top shell which is opposite to the bottom shell along the first direction, the top shell is provided with a second accommodating groove along the first direction, the top shell is connected with the bottom shell in a clamping mode, an accommodating cavity is formed between the first accommodating groove and the second accommodating groove, and the wire connection module, the supporting plate and the main board are all arranged in the accommodating cavity.

Optionally, the device further comprises a power supply module electrically connected with the main board, wherein the power supply module is used for being electrically connected with an external power supply;

The top shell is provided with a connecting column in the second accommodating groove, and the power supply module is arranged on the connecting column.

Optionally, a mounting groove is formed in the top shell, a top shell clamping hole is formed in one of two sides of the mounting groove along the second direction, and a limiting protrusion is formed in the other side of the mounting groove;

The soft starter further comprises a display box, one of two sides of the display box along the second direction is provided with a display box back-off, the other side of the display box is provided with a limiting groove, the display box back-off is connected with the top shell clamping hole in a clamping mode, and the limiting protrusion is arranged in the limiting groove.

The beneficial effects are that:

According to the soft starter provided by the utility model, the main board is integrated on the bottom shell, so that wires between the wiring module and the main board are prevented from interfering the soft starter to be disassembled and assembled. And the end of first holding tank is located to the layer board, and with the mainboard setting up through two layer boards, makes things convenient for the installation of mainboard, makes the mainboard fixed stable, and guarantees mainboard and wiring module looks interval to avoid the installation to interfere.

Drawings

FIG. 1 is a schematic diagram of a portion of a soft starter provided by the present utility model;

Fig. 2 is a schematic structural view of a bottom chassis provided by the present utility model;

FIG. 3 is a schematic view of a pallet according to the present utility model;

FIG. 4 is a schematic view of another view of the pallet according to the present utility model;

FIG. 5 is a schematic diagram of a soft starter according to the present utility model;

FIG. 6 is a schematic diagram of another portion of the soft starter provided by the present utility model;

FIG. 7 is a schematic view of the structure of the top case provided by the present utility model;

FIG. 8 is a schematic view of a display box according to the present utility model;

FIG. 9 is a schematic view of another view angle structure of the display box according to the present utility model;

fig. 10 is a schematic view of the structure in the bottom case provided by the present utility model;

FIG. 11 is a schematic structural view of yet another portion of the soft starter provided by the present utility model;

fig. 12 is a schematic structural view of a terminal cover provided by the present utility model;

fig. 13 is an enlarged view of the structure at a in fig. 2 provided by the present utility model.

In the figure:

100. Bottom shell, 101, first accommodating groove, 102, support column, 103, bottom shell clamping hole, 104, first through hole, 105, second through hole, 106, abdication groove, 107, second open groove, 108, fan groove, 109, positioning column, 110, shell main body, 120, bottom plate, 130, terminal stand, 131, terminal groove, 132, first clamping part, 1321, first inclined side face, 133, positioning plate, 134, groove;

200. The device comprises a wiring module, 210, a heat radiating piece, 220, a thyristor, 230, an input conducting bar, 240, an output conducting bar, 250, a mutual inductor, 260 and a filter board;

300. the device comprises a supporting plate, a limiting groove, a 302 positioning groove, a 303 wire harness groove;

400. A main board;

500. Top shell, 501, second containing groove, 502, top shell back-off, 503, mounting groove, 504, top shell clamping hole, 505, limit bulge, 510, connecting column;

600. A power supply module;

700. The display box comprises a display box body 701, a display box back-off part 702, a limiting groove 703, a protruding part 710, a display screen 720, an operation key 730 and an indicator lamp;

800. Terminal cover 810, main cover plate 820, clamping plate 821, second clamping part 8211, second inclined side face 831, first stop block 832, second stop block;

900. the grounding plate 910, the first bending part 920, the second bending part 930 and the first open slot;

1001. fan 1002, baffle.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may, for example, be fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, directly connected, indirectly connected through an intervening medium, or in communication between two elements or in an interaction relationship between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

Referring to fig. 1 to 4, the present embodiment provides a soft starter including a bottom chassis 100, a wiring module 200, a tray 300, and a main board 400.

Specifically, the bottom case 100 is provided with a first accommodating groove 101 along a first direction, the wiring module 200 is arranged in the first accommodating groove 101, two supporting plates 300 are arranged at intervals along a second direction, the supporting plates 300 are arranged at the end parts of the first accommodating groove 101, the main board 400 is arranged on the supporting plates 300, and the main board 400 and the wiring module 200 are arranged at intervals. The direction a in fig. 1 may be a first direction, the first direction may be a height direction of the soft starter, the direction b may be a second direction, the second direction may be a length direction of the soft starter, the direction c may be a third direction, and the third direction may be a width direction of the soft starter.

In the present embodiment, the motherboard 400 is integrated on the bottom case 100, so as to prevent wires between the wiring module 200 and the motherboard 400 from interfering with the soft starter assembly and disassembly. And the end of the first accommodation groove 101 is located to the layer board 300, and with the mainboard 400 set up through two layer boards 300, make things convenient for the installation of mainboard 400, make the mainboard 400 fixed stable, and guarantee that mainboard 400 and wiring module 200 looks interval to avoid the installation to interfere.

Illustratively, two pallets 300 are respectively located at corresponding sides of the first receiving groove 101 in the second direction to prevent interference between the pallets 300 and the wiring module 200 and the main board 400.

The supporting plate 300 is provided with at least one limiting groove 301 along a first direction towards one side of the groove bottom of the first accommodating groove 101, the bottom shell 100 is provided with supporting columns 102 corresponding to the limiting grooves 301 one by one in the first accommodating groove 101, and the supporting columns 102 are inserted into the corresponding limiting grooves 301, so that the positioning and the installation of the supporting plate 300 are realized, and the supporting plate is stable and reliable. For example, the projection of the first accommodating groove 101 along the first direction may be rectangular, and two sides of the supporting plate 300 along the third direction are respectively provided with one limiting groove 301, that is, the supporting columns 102 are provided with four corners and are respectively disposed at the corresponding corners of the first accommodating groove 101, so as to further prevent installation interference and improve the structural compactness of the soft starter. Illustratively, the pallet 300 may be fixed by threading the first screw through the limit slot 301 and in threaded connection with the corresponding support column 102, for convenience and reliability.

Illustratively, the supporting plate 300 is provided with a positioning groove 302, and the corresponding side edge of the main board 400 is disposed in the positioning groove 302, so that the supporting plate 300 positions the installation of the main board 400 through the positioning groove 302, thereby effectively improving the assembly efficiency of the soft starter.

For example, the main board 400 may be fixed by penetrating the main board 400 through the second screw connector and being screwed with the supporting board 300, which is convenient and reliable.

In this embodiment, referring to fig. 2 and 5, the soft starter further includes a top case 500 opposite to the bottom case 100 along a first direction, the top case 500 is provided with a second accommodating groove 501 along the first direction, the top case 500 is clamped with the bottom case 100, an accommodating cavity is formed between the first accommodating groove 101 and the second accommodating groove 501, and the wiring module 200, the supporting plate 300 and the main board 400 are all disposed in the accommodating cavity. In this embodiment, the top case 500 is clamped with the bottom case 100, so as to facilitate the disassembly and assembly of the soft starter.

Illustratively, at least two bottom shell clamping holes 103 are respectively arranged on two sides of the bottom shell 100 along the third direction, and the top shell 500 is provided with top shell back-off 502 corresponding to the bottom shell clamping holes 103 one by one, so that the bottom shell 100 and the top shell 500 can be conveniently disassembled and assembled, and the tightness between the bottom shell 100 and the top shell 500 can be effectively ensured. Of course, the bottom shell clamping holes 103 and the top shell back-off 502 may be provided in other numbers, which is not limited by the present application.

In this embodiment, referring to fig. 6, the soft starter further includes a power supply module 600 electrically connected to the motherboard 400, where the power supply module 600 is used for electrically connecting to an external power source. In this embodiment, when the connection module 200 is electrically connected to 220V voltage, the motherboard 400 may draw electricity through the connection module 200, and when the connection module 200 is electrically connected to 690V voltage, the motherboard 400 may draw electricity through the power supply module 600, which is suitable for domestic and foreign use environments and improves applicability.

Specifically, the top case 500 is provided with a connection post 510 in the second accommodating groove 501, and the power supply module 600 is disposed on the connection post 510. Illustratively, the power module 600 may be secured within the second receiving groove 501 by way of fasteners that pass through the power module 600 and threadably couple with the coupling post 510. More than two connecting posts 510 are disposed in the top case 500 in the second accommodating groove 501 to ensure the fixing reliability of the power supply module 600.

In this embodiment, referring to fig. 5 and fig. 7 to fig. 9, the soft starter further includes a display box 700, and a display screen 710, an operation key 720 and an indicator lamp 730 are disposed on the display box 700.

Specifically, a mounting groove 503 is formed on the top shell 500, a top shell clamping hole 504 is formed on one of two sides of the mounting groove 503 along the second direction, a limiting protrusion 505 is formed on the other side of the mounting groove, a display box back-up 701 is formed on one of two sides of the display box 700 along the second direction, a limiting groove 702 is formed on the other side of the display box back-up 701, the display box back-up 701 is clamped with the top shell clamping hole 504, and the limiting protrusion 505 is arranged in the limiting groove 702 to realize positioning of the display box 700 along the second direction. Wherein, the limit protrusion 505 and the limit groove 702 may be provided with a plurality of limit protrusions in one-to-one correspondence. When the display box 700 is assembled, the display box 700 is firstly inclined relative to the top shell 500 and is obliquely inserted into the mounting groove 503, so that the limiting protrusion 505 is arranged in the limiting groove 702, then the display box 700 is horizontally arranged, so that the display screen 710 is reversely clamped in the top shell clamping hole 504, the assembly is convenient, and when the display box is disassembled, the display box is reversely buckled 701 in the second accommodating groove 501 and is pressed towards the display box reversely buckled 701 in the top shell clamping hole 504, so that the display box reversely buckled 701 is separated from the top shell clamping hole 504, and the disassembly is convenient.

Specifically, the two sides of the display box 700 along the third direction are respectively provided with a protruding portion 703, and the protruding portions 703 respectively abut against the groove walls of the corresponding sides of the mounting groove 503, so that the display box 700 is positioned along the third direction, the stable and reliable mounting of the display box 700 is ensured, and the display box 700 is effectively prevented from shaking. Wherein the protruding portion 703 is in a reverse buckle shape, so as to facilitate pressing the display box 700 into the mounting groove 503. Illustratively, two or more protrusions 703 are provided on both sides of the display case 700 in the third direction, respectively, to further prevent rattling.

In one possible embodiment, the main board 400 extends into the second receiving groove 501, so that the risk that the wires of the power module 600 and the display case 700 connected to the main board 400 are crushed by the top case 500 and the bottom case 100 is effectively reduced.

In the present embodiment, referring to fig. 10 and 11, the wiring module 200 includes a heat dissipation member 210 and a conductive component disposed on the heat dissipation member 210. The conductive assembly includes a thyristor 220, and an input conductive bar 230 and an output conductive bar 240 disposed opposite to each other along the second direction, and the thyristor 220 is fixed on the heat dissipation element 210.

Specifically, the heat sink 210 may be fixed to the bottom chassis 100 by a fastener. Illustratively, the bottom case 100 may include a case main body 110 and a bottom plate 120 disposed at the bottom of the case main body 110, the case main body 110 is clamped with the bottom plate 120, and the case main body 110 and the bottom plate 120 are enclosed to form a first receiving groove 101. In the present embodiment, the heat dissipation element 210 can be inserted into and locked to the bottom of the shell main body 110, and then the bottom plate 120 is clamped to the bottom of the shell main body 110, so as to facilitate assembly.

Specifically, the conductive assembly further includes a transformer 250 sleeved on the output conductive strip 240. For example, the conductive members may be provided in plural, for example, three, at intervals along the third direction.

Specifically, the conductive assembly further includes a filter plate 260 disposed on the input conductive strip 230 and the output conductive strip 240 for current filtering purposes. Wherein filter plate 260 spans across all of input conductor bars 230 and output conductor bars 240.

In a possible embodiment, as shown in fig. 4 and 10, the supporting plate 300 is provided with a wire harness slot 303, a pulse wire (not shown) connected between the main board 400 and the thyristor 220 is penetrated through the wire harness slot 303, the wire harness is well placed, and the pulse wire does not extend out of the accommodating cavity during assembly of the soft starter, so that the risk that the pulse wire is crushed by the top case 500 and the bottom case 100 is effectively reduced. In this embodiment, since the opening of the wire harness slot 303 is small, the pulse wire is difficult to escape after entering the wire harness slot 303.

Illustratively, the number of wire harness slots 303 on the pallet 300 is the same as the number of thyristors 220 and are spaced along the third direction to facilitate wire management.

Illustratively, the projection of the wire harness groove 303 along the first direction is triangular, and the wire harness groove 303 is provided with a chamfer or a round angle at the opening to facilitate the extrusion of the pulse wire into the wire harness groove 303.

In the present embodiment, referring to fig. 2 and 10 to 13, the two outer side surfaces of the bottom case 100 along the second direction are respectively provided with the terminal blocks 130, the terminal blocks 130 are clamped with the terminal covers 800, and the input conductive bars 230 and the output conductive bars 240 respectively penetrate the bottom case 100 along the second direction and extend between the terminal blocks 130 and the terminal covers 800 on the corresponding sides. The terminal block 130 is integrally formed with the bottom case 100. In the present embodiment, the corresponding conductive bars are supported by the terminal block 130 to facilitate connection of the conductive bars with external wires, and shielded by the terminal cover 800 to improve electrical safety. In addition, the terminal block 130 is clamped with the terminal cover 800, so that the terminal cover 800 is convenient to assemble, and the assembling efficiency of the soft starter is effectively improved.

Specifically, the bottom case 100 is provided with first through holes 104 corresponding to the input conductive bars 230 one by one and second through holes 105 corresponding to the output conductive bars 240 one by one, the input conductive bars 230 pass through the corresponding first through holes 104 to the outside of the first accommodating groove 101, and the output conductive bars 240 pass through the corresponding second through holes 105 to the outside of the first accommodating groove 101.

Specifically, the terminal block 130 is provided with a terminal slot 131, and the input conductive bar 230 and the output conductive bar 240 are respectively disposed in the corresponding terminal slots 131. Wherein, the bottom of the terminal groove 131 is provided with a locking nut (not shown), it is understood that the parts of the input conductive bar 230 and the output conductive bar 240 extending out of the first receiving groove 101 are respectively provided with a wire connection hole and respectively form a terminal body with the corresponding locking nut.

Specifically, the terminal block 130 is provided with first clamping portions 132 at both sides thereof along a third direction, and the terminal block 130 is provided with a positioning plate 133 at a side thereof facing the terminal cover 800 along the first direction, the terminal cover 800 includes a main cover plate 810 extending along the third direction, clamping plates 820 are provided at both ends of the main cover plate 810, second clamping portions 821 are provided at both sides thereof facing each other, and the main cover plate 810 is provided with a first stopper 831 and a second stopper 832 at a side thereof facing the terminal block 130 along the first direction, the first stopper 831 and the second stopper 832 being disposed at intervals along the second direction. The terminal block 130 is located between the two clamping plates 820, and the first clamping portion 132 is clamped with the corresponding second clamping portion 821 to position the terminal block 130 along the first direction and the third direction, the positioning plate 133 is located between the first stop block 831 and the second stop block 832, and the first stop block 831 and the second stop block 832 respectively abut against corresponding sides of the positioning plate 133 along the second direction, so that the terminal block 130 is positioned along the second direction, and the terminal cover 800 is effectively prevented from shaking. In the present embodiment, the terminal cover 800 is locked into or unlocked from the terminal block 130 along the first direction, which is convenient for installation.

Illustratively, the terminal block 130 is provided with a recess 134 along a first direction toward one side of the terminal cover 800, a first stop 831 extends into the recess 134, and a second stop 832 is located outside the recess 134 to form a clamp for the positioning plate 133.

Specifically, at least one set of block groups is disposed on the main cover plate 810, each set of block groups may include a first block 831 and two second blocks 832, the first block 831 is located between the two second blocks 832 along the third direction, and the second blocks 832 are located on a side of the first block 831 facing away from the bottom case 100 along the second direction. The second stop 832 may separate adjacent conductive bars, thereby improving safety.

The first clamping portion 132 is illustratively provided as a clamping groove, the clamping groove is provided with a first inclined side surface 1321, the first inclined side surface 1321 is inclined towards the top of the terminal block 130, wherein the top of the terminal block 130 refers to a side of the terminal block 130, which is provided with the first accommodating groove 101, towards the bottom shell 100 along the first direction, the second clamping portion 821 is provided as a clamping protrusion, the clamping protrusion is provided with a second inclined side surface 8211, the second inclined side surface 8211 is attached to the first inclined side surface 1321, the terminal cover 800 is effectively prevented from sliding downwards along the first direction, and the terminal cover 800 is convenient to detach. The projection of the clamping groove and the clamping protrusion along the second direction can be right trapezoid.

Illustratively, the terminal cover 800 protrudes from the terminal block 130 along a side of the second direction facing away from the bottom case 100, so as to further improve electrical safety. The clamping plate 820 protrudes from the terminal block 130 along the side of the second direction facing away from the bottom case 100, so that the clamping plate 820 is convenient to be broken, and the clamping protrusion is separated from the clamping groove, so that the terminal cover 800 is convenient to be disassembled.

Illustratively, the top of the terminal block 130 is provided with chamfers or fillets on both sides along the third direction to allow for the snap-fit protrusions on the corresponding sides, facilitating assembly of the terminal cover 800.

Illustratively, the material of the terminal cover 800 may be a transparent material to facilitate viewing.

Illustratively, the material of the terminal cover 800 may be an elastic material, so as to facilitate assembly and disassembly.

In this embodiment, referring to fig. 1, 2 and 10, the soft starter further includes a grounding plate 900, the grounding plate 900 includes a first bending portion 910 and a second bending portion 920 perpendicular to each other, the first bending portion 910 extends along a first direction and is connected to one side of the heat dissipation member 210 along a third direction, and the second bending portion 920 extends along a second direction and is disposed outside the first accommodating groove 101 in a penetrating manner, so that the grounding plate 900 occupies a small space of the first accommodating groove 101 and is convenient to assemble. It can be appreciated that the first bending portion 910 may be disposed perpendicular to the third direction, and the second bending portion 920 is disposed perpendicular to the first direction, so as to occupy a smaller installation space, and make the structure in the bottom case 100 compact.

Illustratively, an end of the first bending portion 910 remote from the second bending portion 920 may be fixed to the heat sink 210 by a fastener.

Illustratively, the groove bottom of the first accommodating groove 101 may be provided with a relief groove 106, and the second bending portion 920 is disposed in the relief groove 106, so as to further improve the structural compactness in the bottom case 100.

Illustratively, the end of the second bending portion 920 extending out of the first accommodating groove 101 is provided with a first open groove 930. In this embodiment, the bottom case 100 is provided with second open slots 107 at four corners outside the first accommodating slot 101, and the first open slot 930 is disposed corresponding to one of the second open slots 107, so as to implement grounding while installing the soft starter. Wherein, the first open groove 930 and the second open groove 107 may each be provided in a U shape.

In the present embodiment, a fan 1001 is disposed at one side of the bottom case 100 along the second direction, and the fan 1001 blows air to the heat dissipation member 210 to achieve the purpose of heat dissipation.

Illustratively, the blower 1001 may be disposed on a side of the output conductive strip 240 extending out of the bottom case 100.

Illustratively, to ensure a compact structure of the soft starter, a fan groove 108 that can accommodate the fan 1001 may be provided on the bottom case 100, and the fan groove 108 is provided in communication with the first accommodating groove 101. Wherein at least one fan 1001, for example two fans, may be mounted within the fan slot 108. Specifically, positioning posts 109 corresponding to mounting holes of the blower 1001 are provided in the blower groove 108 to realize positioning of the blower 1001 in the first direction and the third direction.

Further, a baffle 1002 may be disposed at an end of the fan slot 108, and the fan 1001 is limited by the baffle 1002, so as to realize positioning of the fan 1001 along the second direction. The baffle 1002 may be connected to the bottom case 100 by a clamping manner, so as to effectively improve the assembly efficiency of the soft starter. The second bending portion 920 of the grounding plate 900 passes under the fan 1001 and the baffle 1002.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (10)

1. A soft starter, comprising:

A bottom case (100) provided with a first accommodation groove (101) along a first direction;

A wiring module (200) provided in the first accommodation groove (101);

Two support plates (300) are arranged at intervals along the second direction, and the support plates (300) are arranged at the end parts of the first accommodating grooves (101);

and the main board (400) is arranged on the supporting plate (300), and the main board (400) and the wiring module (200) are arranged at intervals.

2. The soft starter according to claim 1, characterized in that the pallet (300) is provided with at least one limit groove (301) along a first direction towards a side of the groove bottom of the first accommodation groove (101);

The bottom shell (100) is provided with support columns (102) which are in one-to-one correspondence with the limit grooves (301) in the first accommodating groove (101), and the support columns (102) are inserted into the corresponding limit grooves (301).

3. The soft starter according to claim 1, wherein the supporting plate (300) is provided with a positioning groove (302), and the corresponding side edge of the main board (400) is arranged in the positioning groove (302).

4. The soft starter of claim 1, wherein the wiring module (200) includes a thyristor (220), the pallet (300) is provided with a wire harness slot (303), and a pulse wire connected between the main board (400) and the thyristor (220) passes through the wire harness slot (303).

5. The soft starter according to claim 1, wherein two outer side surfaces of the bottom shell (100) along the second direction are respectively provided with a terminal block (130), and a terminal cover (800) is clamped on the terminal block (130);

The wiring module (200) comprises an input conductive row (230) and an output conductive row (240) which are oppositely arranged along a second direction, wherein the input conductive row (230) and the output conductive row (240) are respectively penetrated in the bottom shell (100) along the second direction and extend to a position between the terminal block (130) and the terminal cover (800) on the corresponding sides.

6. The soft starter according to claim 5, wherein the terminal block (130) is provided with first clamping portions (132) on both sides thereof in a third direction, and a positioning plate (133) is provided on a side of the terminal block (130) facing the terminal cover (800) in the first direction;

The terminal cover (800) comprises a main cover plate (810) extending along a third direction, two ends of the main cover plate (810) are respectively provided with a clamping plate (820), one side of each clamping plate (820) facing each other is respectively provided with a second clamping part (821), one side of the main cover plate (810) facing the terminal table (130) along the first direction is provided with a first stop block (831) and a second stop block (832), the first stop block (831) and the second stop block (832) are arranged at intervals along the second direction,

The terminal block (130) is located between the two clamping plates (820), the first clamping portions (132) are clamped with the corresponding second clamping portions (821), the positioning plate (133) is located between the first stop block (831) and the second stop block (832), and the first stop block (831) and the second stop block (832) are respectively abutted with corresponding sides of the positioning plate (133) along the second direction.

7. The soft starter of claim 1, wherein the wiring module (200) includes a heat sink (210);

The soft starter further comprises a grounding sheet (900), the grounding sheet (900) comprises a first bending part (910) and a second bending part (920) which are perpendicular to each other, the first bending part (910) extends along a first direction and is connected with one side of the heat dissipation part (210) along a third direction, and the second bending part (920) extends along a second direction and penetrates out of the first accommodating groove (101).

8. The soft starter of claim 1, further comprising a top case (500) disposed opposite to the bottom case (100) along a first direction, wherein the top case (500) is provided with a second accommodating groove (501) along the first direction, the top case (500) is clamped with the bottom case (100), an accommodating cavity is formed between the first accommodating groove (101) and the second accommodating groove (501), and the wiring module (200), the supporting plate (300) and the main board (400) are all disposed in the accommodating cavity.

9. The soft starter of claim 8, further comprising a power module (600) electrically connected to the motherboard (400), the power module (600) for electrical connection to an external power source;

The top shell (500) is provided with a connecting column (510) in the second accommodating groove (501), and the power supply module (600) is arranged on the connecting column (510).

10. The soft starter according to claim 8, wherein the top case (500) is provided with a mounting groove (503), one of two sides of the mounting groove (503) along the second direction is provided with a top case clamping hole (504), and the other side is provided with a limiting protrusion (505);

The soft starter further comprises a display box (700), one of two sides of the display box (700) along the second direction is provided with a display box back-off buckle (701), the other side of the display box back-off buckle (701) is provided with a limiting groove (702), the display box back-off buckle (701) is clamped with the top shell clamping hole (504), and the limiting protrusion (505) is arranged in the limiting groove (702).