CN216016746U

CN216016746U - Soft starter with heat radiation structure

Info

Publication number: CN216016746U
Application number: CN202122334671.XU
Authority: CN
Inventors: 张占勇; 邴丹丹
Original assignee: Xiangyang Raytheon Electric Manufacturing Co ltd
Current assignee: Xiangyang Raytheon Electric Manufacturing Co ltd
Priority date: 2021-09-26
Filing date: 2021-09-26
Publication date: 2022-03-11
Anticipated expiration: 2031-09-26

Abstract

The utility model discloses a soft starter with a heat dissipation structure in the related technical field of soft starters, which comprises a soft starter, two heat dissipation square holes, a positive and negative rotation motor, a temperature control switch, a transmission shaft and two threaded rods, wherein the upper part and the lower part of a shell of the soft starter are respectively provided with an air vent with a filter screen, the two heat dissipation square holes are arranged at the two sides of the shell of the soft starter, the positive and negative rotation motor and the temperature control switch are fixed at the upper part of the inner cavity of the shell, the transmission shaft is horizontally and rotatably arranged below the positive and negative rotation motor, the threaded rods are positively and negatively rotated by matching with a positive and negative rotation motor and a telescopic transmission device, and then utilize reciprocating of thread bush to make the baffle take place the displacement, open the heat dissipation square hole, the flabellum rotates simultaneously, produces wind energy and bloies in to soft starter for the circulation of air, its rapid cooling heat dissipation of being convenient for, just reversal motor passes through temperature detect switch and connects electric control, and the simple operation has market spreading value.

Description

Soft starter with heat radiation structure

Technical Field

The utility model relates to a soft starter correlation technique field specifically is a soft starter with heat radiation structure.

Background

Soft starter adopts the anti-parallelly connected thyristor of three-phase as the voltage regulator, if three-phase full control bridge rectifier circuit with this kind of circuit, when using soft starter motor, the output voltage of thyristor increases gradually, the motor accelerates gradually, it switches on completely up to the thyristor, motor work is on rated voltage's mechanical characteristic, realize smooth start, reduce starting current, avoid starting overcurrent tripping operation, insert it between power and the motor stator, can produce a large amount of heats in soft starter's use, if heat gathering and unable giving off, will influence its life, so need to design a convenient radiating soft starter in the actual production life urgently, based on this, the utility model designs a soft starter with heat radiation structure, in order to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a soft starter with heat radiation structure to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a soft starter with a heat dissipation structure comprises a soft starter body, two heat dissipation square holes, a positive and negative rotation motor, a temperature control switch, a transmission shaft and two threaded rods, wherein air vents with filter screens are arranged at the upper part and the lower part of the shell of the soft starter body, the two heat dissipation square holes are arranged at the two sides of the shell of the soft starter body, the positive and negative rotation motor and the temperature control switch are fixed at the upper part of an inner cavity of the shell body, the transmission shaft is horizontally and rotatably arranged below the positive and negative rotation motor, the upper ends of the two threaded rods are vertically and relatively fixed at the inner sides of the heat dissipation square holes through a supporting seat, a telescopic transmission device is arranged between the outer wall of the transmission shaft and the end part of a motor shaft of the positive and negative rotation motor, fan blades are fixed on the outer wall of a motor shaft of the positive and negative rotation motor, the transmission shaft is connected with the upper ends of the threaded rods through bevel gear pairs, threaded sleeves are matched with the outer wall of the threaded rods, and a frame is arranged at the outer side of the heat dissipation square holes, the baffle is inserted in the frame in a sliding mode, and the bottom of the threaded sleeve is fixed to the middle of the inner wall of the baffle through a cross beam.

Preferably, telescopic transmission includes and installs at positive and negative motor shaft and the epaxial box body of transmission through the bearing, the inner chamber both sides of box body are fixed with the electric mortiser lock through the welded support, the bolt tip of electric mortiser lock passes through the bearing frame level and rotates and install the drive shaft, the motor shaft tip of positive and negative motor is fixed with integral key shaft spline cover subassembly, install the L template through the bearing between integral key shaft and the drive shaft outer wall of integral key shaft spline cover subassembly, the spline shaft tip and the drive shaft outer wall of integral key shaft spline cover subassembly pass through bevel gear pair and are connected, the both ends of drive shaft all are fixed with first friction pulley, the outer wall of drive shaft is fixed with the second friction pulley relative with first friction pulley.

Preferably, the forward and reverse rotation motor, the temperature control switch and the electric mortise lock are connected through a time relay control circuit.

Preferably, the outer wall of the threaded sleeve is connected with the inner wall of the shell in a sliding mode through a T-shaped sliding block.

Preferably, the side of the frame is provided with a dust screen.

Preferably, the circumferential surfaces of the first friction wheel and the second friction wheel are provided with anti-skid lines with wear-resistant coatings.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a positive and negative motor cooperation telescopic transmission makes the threaded rod just reverse, and then utilizes reciprocating of thread bush to make the baffle take place the displacement, opens the heat dissipation square hole, and the flabellum rotates simultaneously, produces the wind energy and bloies in to the soft starter for the circulation of air, its rapid cooling heat dissipation of being convenient for, positive and negative motor passes through temperature detect switch and connects electric control, and the simple operation has market spreading value.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

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

FIG. 2 is a schematic view of the transmission of FIG. 1;

FIG. 3 is a circuit diagram of a control circuit of a forward and reverse rotating motor and an electric mortise lock time relay.

In the drawings, the components represented by the respective reference numerals are listed below:

1-a soft starter, 2-a heat dissipation square hole, 3-a forward and reverse rotating motor, 4-a temperature control switch, 5-a transmission shaft, 6-a telescopic transmission device, 7-a threaded rod, 8-a threaded sleeve, 9-a T-shaped sliding block, 10-a frame, 11-a baffle, 12-a cross beam, 13-a fan blade, 60-a box body, 61-an electric mortise lock, 62-a driving shaft, 63-a spline shaft and spline sleeve assembly, 64-an L-shaped plate, 65-a first friction wheel and 66-a second friction wheel.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1, the present invention provides a technical solution: a soft starter with a heat dissipation structure comprises a soft starter 1, two heat dissipation square holes 2, a forward and reverse rotating motor 3, a temperature control switch 4, a transmission shaft 5 and two threaded rods 7, wherein air holes with filter screens are respectively arranged at the upper part and the lower part of a shell of the soft starter 1, so that auxiliary heat dissipation is facilitated, the two heat dissipation square holes 2 are arranged at two sides of the shell of the soft starter 1, the forward and reverse rotating motor 3 and the temperature control switch 4 are fixed at the upper part of an inner cavity of the shell, the transmission shaft 5 is horizontally and rotatably arranged below the forward and reverse rotating motor 3, the upper ends of the two threaded rods 7 are vertically and relatively fixed at the inner sides of the heat dissipation square holes 2 through a supporting seat, the transmission shaft 5 and the threaded rods 7 are both positioned on the vertical centerline plane of the heat dissipation square holes 2, a telescopic transmission device 6 is arranged between the outer wall of the transmission shaft 5 and the motor shaft end part of the forward and reverse rotating motor 3, and the power cut-off can be realized when the transmission shaft 5 is driven to rotate through the telescopic transmission device 6, the outer wall of a motor shaft of the positive and negative rotation motor 3 is fixedly provided with fan blades 13, a transmission shaft 5 is connected with the upper end of a threaded rod 7 through a bevel gear pair, the outer wall of the threaded rod 7 is provided with a threaded sleeve 8 in a matching way, the outer wall of the threaded sleeve 8 is in sliding connection with the inner wall of a shell through a T-shaped slider 9, the T-shaped slider 9 is utilized for auxiliary support to prevent the threaded rod 7 and the threaded sleeve 8 from bending when being used for a long time in the horizontal direction, the outer side of a heat dissipation square hole 2 is provided with a frame 10, the frame 10 adopts three channel steel plates which are welded end to form a gantry frame type, a baffle plate 11 is inserted in the frame 10 in a sliding way, and the side surface of the frame 10 is provided with a dustproof net, when baffle 11 moves down, reduce winged insect and floater admission apparatus in, threaded sleeve 8 bottom is fixed through crossbeam 12 and 11 inner wall middle parts of baffle, drives baffle 11 and reciprocates when threaded sleeve 8 reciprocates, and then opens heat dissipation square hole 2.

Referring to fig. 2, the telescopic transmission device 6 includes a box 60 mounted on a motor shaft and a transmission shaft 5 of a forward and reverse motor 3 through bearings, an electric mortise lock 61 is fixed on two sides of an inner cavity of the box 60 through a welding bracket, a driving shaft 62 is horizontally and rotatably mounted at an end of a bolt of the electric mortise lock 61 through a bearing seat, a spline shaft spline housing assembly 63 is fixed at an end of the motor shaft of the forward and reverse motor 3, an L-shaped plate 64 is mounted between a spline shaft of the spline shaft spline housing assembly 63 and an outer wall of the driving shaft 62 through a bearing seat, an end of the spline shaft spline housing assembly 63 is connected with an outer wall of the driving shaft 62 through a bevel gear pair, a first friction wheel 65 is fixed at each end of the driving shaft 62, a second friction wheel 66 opposite to the first friction wheel 65 is fixed on an outer wall of the transmission shaft 5, anti-slip wheels with wear-resistant coatings are provided on circumferential surfaces of the first friction wheel 65 and the second friction wheel 66, so as to avoid wear and reduce transmission efficiency, when positive and negative motor 3 corotation and electric mortiser lock 61 get the electric extension, first friction pulley 65 and the friction extrusion of second friction pulley 66, pivoted 63 makes 62 rotations through the bevel gear pair, and then 5 rotate, threaded rod 7 drives threaded sleeve 8 when pivoted and moves down, heat dissipation square hole 2 is opened, flabellum 13 accelerates the circulation of air in soft starter 1, dispel the heat, when temperature detect switch 4 detected the temperature to reasonable interval, positive and negative motor 3 reversal for a certain time, make threaded sleeve 8 move up, heat dissipation square hole 2 is sheltered from by baffle 11.

Referring to fig. 3, the forward and reverse rotation motor 3, the temperature control switch 4 and the electric mortise lock 61 are connected through a time relay control circuit, and are automatically turned on when the temperature control switch 4 senses that the temperature in the soft starter 1 is too high; and the approximate time length required by complete heat dissipation is obtained through a plurality of tests, a time relay KT2 is set to be the time length, the step-down rectifier enables the electric mortise lock 61 to be powered on, the contactor KM1 is powered on, the forward and reverse rotation motor 3 rotates forwards, the first friction wheel 65 rubs and extrudes the second friction wheel 66, the threaded sleeve 8 moves downwards for the time length of KT1, after the baffle 11 opens the heat dissipation square hole 2, the electric mortise lock 61 is powered off, the baffle 11 does not move, the fan blades 13 continue to rotate along with the forward and reverse rotation motor 3 to dissipate heat, the time relay KT2 is switched on before the temperature in the soft starter 1 is sensed by the temperature control switch 4, the reverse rotation control contactor KM2 of the forward and reverse rotation motor 3 is powered on, meanwhile, the electric mortise lock 61 is powered on again, the time length of KT3 is enabled to move upwards by the threaded sleeve 8, and the time length of KT3 is set to be equal to the time length of KT 1.

The working principle is as follows: utilize a just reversing motor 3 cooperation flexible transmission 6 to make threaded rod 7 just reverse, and then control thread bush 8 reciprocates, baffle 11 can make heat dissipation square hole 2 close and open, just reversing motor 3 drive flabellum 13 simultaneously rotates, in the time quantum that baffle 11 was opened, the inside circulation of air of soft starter 1 accelerates, dispel the heat, all parts for the heat dissipation set up on soft starter 1's casing, utilize its work to connect the electrical end and supply power for the heat dissipation part.

It is worth noting that: the soft starter, the forward and reverse rotating motor, the temperature control switch and the electric mortise lock which are adopted in the scheme are all products sold in the market, the whole device is controlled by the circuit in the figure 3, and the electrical connection relation and the specific product model are not repeated.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a soft starter with heat radiation structure, includes soft starter (1), two heat dissipation square holes (2), positive reverse motor (3), temperature detect switch (4), transmission shaft (5) and two threaded rod (7), its characterized in that: the casing of soft starter (1) all is provided with the air vent of taking the filter screen from top to bottom, two heat dissipation square hole (2) set up the casing both sides at soft starter (1), just reverse motor (3) and temperature detect switch (4) are fixed on the inner chamber upper portion of casing, transmission shaft (5) horizontal rotation is installed in the below of just reversing motor (3), two the upper end of threaded rod (7) is passed through the vertical relative fixation of supporting seat and is in the inboard of heat dissipation square hole (2), install flexible transmission device (6) between the outer wall of transmission shaft (5) and the motor shaft tip of just reverse motor (3), the motor shaft outer wall of just reverse motor (3) is fixed with flabellum (13), transmission shaft (5) are connected with threaded rod (7) upper end through the bevel gear pair, thread bush (8) are installed in the outer wall matching of threaded rod (7), a frame (10) is installed on the outer side of the heat dissipation square hole (2), a baffle (11) is inserted in the frame (10) in a sliding mode, and the bottom of the threaded sleeve (8) is fixed to the middle of the inner wall of the baffle (11) through a cross beam (12).

2. A soft starter with a heat dissipation structure as recited in claim 1, wherein: the telescopic transmission device (6) comprises a box body (60) which is arranged on a motor shaft and a transmission shaft (5) of the forward and reverse rotating motor (3) through bearings, the two sides of the inner cavity of the box body (60) are fixed with electric mortise locks (61) through welding brackets, the end part of the bolt of the electric mortise lock (61) is horizontally and rotatably provided with a driving shaft (62) through a bearing seat, a spline shaft spline sleeve assembly (63) is fixed at the end part of a motor shaft of the forward and reverse rotating motor (3), an L-shaped plate (64) is arranged between the spline shaft of the spline shaft spline sleeve assembly (63) and the outer wall of the driving shaft (62) through a bearing, the end part of the spline shaft spline sleeve assembly (63) is connected with the outer wall of the driving shaft (62) through a bevel gear pair, and a first friction wheel (65) is fixed at each of two ends of the driving shaft (62), and a second friction wheel (66) opposite to the first friction wheel (65) is fixed on the outer wall of the transmission shaft (5).

3. A soft starter with a heat dissipation structure according to claim 1 or 2, wherein: the positive and negative rotation motor (3), the temperature control switch (4) and the electric mortise lock (61) are connected through a time relay control circuit.

4. A soft starter with a heat dissipation structure as recited in claim 1, wherein: the outer wall of the threaded sleeve (8) is connected with the inner wall of the shell in a sliding mode through a T-shaped sliding block (9).

5. A soft starter with a heat dissipation structure as recited in claim 1, wherein: and a dustproof net is arranged on the side surface of the frame (10).

6. A soft starter with a heat dissipation structure as recited in claim 2, wherein: the circumferential surfaces of the first friction wheel (65) and the second friction wheel (66) are provided with anti-skid lines with wear-resistant coatings.