Drawer type soft starting device

Abstract

The utility model discloses a drawer type soft starting device which comprises a drawer cabinet body, and an integrated soft starting integral component is detachably arranged in the drawer cabinet body. The integrated soft start integral component comprises a soft start assembly used for soft start of the motor, a contactor assembly used for bypassing the soft start assembly to be connected with the motor after soft start of the motor, and an air switch assembly used for providing overload and short circuit protection. The soft starting assembly, the contactor assembly and the air switch assembly are fixedly connected and electrically connected into a whole. According to the utility model, through the arrangement of the integrated soft starting integral component, the whole soft starting device can be produced, assembled and independently tested before being put into the drawer, so that flow line production is realized, the production efficiency is improved, and the integrated soft starting integral component can be integrally taken out for operation in later overhaul and maintenance; therefore, the maintenance is more convenient, and the maintenance time and cost are reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to motor field, especially relate to a soft starter. BACKGROUND

[0002] When the conventional soft starter needs to be incorporated into a low-voltage electrical chamber, a soft start cabinet must be separately manufactured, the connection between the soft starter and the bus is completed by means of a cable or a copper bar, and then the connection is made to the motor to realize the soft start of the motor. However, the separate manufacture of a soft start cabinet occupies the space of the power distribution room, which greatly affects the layout and expandability of the power distribution room in the case of limited space. The space in the cabinet of a GCK / GCS low-voltage draw-out type switch cabinet is empty, which wastes the space of the complete set of equipment and the cost of purchasing the complete set of equipment. If the soft starter is integrated into the empty drawer cabinet, the space of the complete set of equipment can be reasonably utilized, and the cost of additional purchase and installation of the soft start cabinet can be avoided. However, the existing drawer type soft start device has an unreasonable design of the positions of components, cannot be assembled and tested independently from the drawer cabinet, and is very inconvenient for maintenance and repair in the later period. SUMMARY

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies and defects mentioned in the above background technology, and to provide a drawer type soft starter with reasonable component positions, integrated design, and the ability to assemble and test as a whole outside the drawer.

[0004] To solve the above technical problems, the technical solution provided by the utility model is as follows:

[0005] A drawer type soft starter, comprising a drawer cabinet body, an integrated soft start integral component is detachably arranged in the drawer cabinet body, the integrated soft start integral component comprises a soft start assembly for soft starting a motor, a contactor assembly for connecting the motor bypassing the soft start assembly after the soft start of the motor, and an air switch assembly for providing overload and short circuit protection, and the soft start assembly, the contactor assembly, and the air switch assembly are fixedly connected and electrically connected as one whole.

[0006] In the above-mentioned drawer type soft starter, preferably, the soft start assembly comprises a silicon assembly fixing plate and a silicon assembly arranged on the silicon assembly fixing plate, the contactor assembly comprises a contactor fixing plate and a bypass contactor arranged on the contactor fixing plate, the air switch assembly comprises an air switch fixing plate and an air switch arranged on the air switch fixing plate, and the silicon assembly fixing plate and the contactor fixing plate are fixedly arranged on the air switch fixing plate. The components are fixedly connected together through the fixing plates, which enhances the stability of the overall structure and facilitates installation. The silicon assembly fixing plate and the contactor fixing plate are fixedly arranged on the air switch fixing plate, which makes the layout of the integral component more compact and saves more space.

[0007] In the drawer type soft starter device, the air switch is preferably vertically arranged, and the air switch is provided with an adjusting handle and a plurality of wiring terminals. The adjusting handle is directed outward of the drawer, and the plurality of wiring terminals are vertically and symmetrically arranged on both sides of the adjusting handle in the horizontal direction. The side of the air switch away from the adjusting handle is fixedly connected with the air switch fixing plate. The adjusting handle is directed outward of the drawer, so that the worker can intuitively see and operate the switch state, facilitating quick identification and adjustment of the switch setting. The vertical arrangement of the wiring terminals allows the wiring to be layered and overlapped in the height direction, making the wiring more convenient and orderly, facilitating management and maintenance, improving installation efficiency, reducing contact between lines, and improving heat dissipation efficiency and electrical safety.

[0008] In the drawer type soft starter device, the silicon components are preferably horizontally arranged, and the plurality of silicon components are arranged in the height direction on one side of the silicon component fixing plate. The other side of the silicon component fixing plate is fixedly connected with the air switch fixing plate. This arrangement can more effectively utilize space, improve space utilization, and facilitate air circulation and heat dissipation between silicon components.

[0009] In the drawer type soft starter device, the contactor components are preferably horizontally arranged, and the contactor fixing plates are also provided in plurality. The plurality of contactor fixing plates are fixedly connected in the height direction on the air switch fixing plate. This arrangement can more effectively utilize space, improve space utilization, and allow the silicon components to be arranged one by one in the height direction, making the wiring of the entire component more convenient and orderly.

[0010] In the drawer type soft starter device, the air switch fixing plate is preferably detachably connected with the drawer cabinet through a fixed crossbar. The existing GCK / GCS and other low-voltage pull-out type switch cabinets have a lot of empty space in the cabinet. Through this arrangement, the entire component can be easily fixed in the empty drawer cabinet, making rational use of the space of the complete equipment and avoiding the cost of additional purchase and installation of a soft cabinet.

[0011] In the drawer type soft starter device, preferably, the silicon assembly comprises a silicon core and a heat sink arranged outside the silicon core, the drawer cabinet is provided with an incoming line terminal and an outgoing line terminal, the incoming line terminal is connected with an incoming line end of an air switch through a first connecting copper bar, an outgoing line end of the air switch is connected with an incoming line end of the silicon assembly through a second connecting copper bar, an outgoing line end of the silicon assembly is connected with the outgoing line terminal through a third connecting copper bar, the second connecting copper bar is connected with a fourth connecting copper bar through the heat sink, an incoming line end of the bypass contactor is connected with the fourth connecting copper bar, and an outgoing line end of the bypass contactor is connected with the third connecting copper bar through a fifth connecting copper bar. The setting first connects the incoming line terminal with the air switch, realizes the soft starting of the motor through the silicon assembly, controls the contactor to be turned on, and makes the silicon assembly exit the work, so that the soft starting of the motor is completed, the silicon assembly only works at the starting time, the problems of power consumption and heat dissipation caused by long-term online operation are avoided, the device can be connected with the incoming line for a long time after the soft starting of the motor is completed, and in addition, the heat dissipation effect of the device is better during the long-term operation of the motor because the components are connected through the copper bars.

[0012] In the drawer type soft starter device, preferably, the integral soft starting integral component further comprises a current transformer for measuring and monitoring the current, one end of the current transformer is electrically connected with the air switch assembly, and the other end is electrically connected with the soft starting assembly. The setting of the current transformer can improve the safety and reliability of the entire soft starter device.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] The utility model discloses an integral soft starting integral component, so that the entire soft starting device can be produced and assembled and independently tested before being put into the drawer, realizes the assembly line production, improves production efficiency, and the integral soft starting integral component can be taken out as a whole for operation during the later maintenance and maintenance, so that the maintenance and maintenance are more convenient, and the maintenance time and cost are reduced. ACCURACY OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating creative labor.

[0016] Figure 1 It is the overall structure schematic view of the drawer type soft starter device of the embodiment;

[0017] Figure 2 It is the top view of the drawer type soft starter device of the embodiment.

[0018] Figure 3 This is a schematic diagram of the overall structure of the drawer-type soft starter with a fixed crossbar, as shown in the embodiment.

[0019] Legend

[0020] 1. Soft starter assembly; 2. Contactor assembly; 3. Circuit breaker assembly; 4. Drawer cabinet; 5. Current transformer; 6. First connecting copper busbar; 7. Second connecting copper busbar; 8. Third connecting copper busbar; 9. Fourth connecting copper busbar; 10. Fifth connecting copper busbar; 11. Silicon module mounting plate; 12. Silicon module; 21. Contactor mounting plate; 22. Bypass contactor; 31. Circuit breaker mounting plate; 32. Air switch; 41. Incoming terminal; 42. Outgoing terminal; 43. Fixed crossbar; 121. Silicon core; 122. Heat sink. Detailed Implementation

[0021] To facilitate understanding of this utility model, it will be described more comprehensively and in detail below with reference to the accompanying drawings and preferred embodiments. However, the scope of protection of this utility model is not limited to the following specific embodiments.

[0022] It should be noted that when a component is described as being "fixed to, attached to, connected to or connected to" another component, it can be directly fixed to, attached to, connected to or connected to the other component, or it can be indirectly fixed to, attached to, connected to or connected to the other component through other intermediate connectors.

[0023] Unless otherwise defined, all technical terms used herein have the same meaning as commonly understood by those skilled in the art. The technical terms used herein are for the purpose of describing particular embodiments only and are not intended to limit the scope of protection of this invention.

[0024] Unless otherwise specified, all raw materials, reagents, instruments and equipment used in this invention can be purchased from the market or prepared by existing methods.

[0025] Example:

[0026] like Figures 1 to 3 As shown, the drawer-type soft starter device of this embodiment includes a drawer cabinet 4, and an integrated soft starter component is detachably installed inside the drawer cabinet 4. The integrated soft starter component includes a soft starter assembly 1 for soft starting the motor, a contactor assembly 2 for connecting to the motor after the motor is soft started, bypassing the soft starter assembly 1, and an air switch assembly 3 for providing overload and short circuit protection. The soft starter assembly 1, the contactor assembly 2, and the air switch assembly 3 are fixedly connected and electrically connected to form a whole.

[0027] In the embodiment, the soft start assembly 1 comprises a silicon assembly fixing plate 11 and a silicon assembly 12 arranged on the silicon assembly fixing plate 11, the contactor assembly 2 comprises a contactor fixing plate 21 and a bypass contactor 22 arranged on the contactor fixing plate 21, the air switch assembly 3 comprises an air switch fixing plate 31 and an air switch 32 arranged on the air switch fixing plate 31, and the silicon assembly fixing plate 11 and the contactor fixing plate 21 are both fixed on the air switch fixing plate 31.

[0028] In the embodiment, the air switch fixing plate 31 is vertically arranged, the air switch 32 is provided with an adjusting handle and a plurality of wiring terminals, which can be three incoming terminals and three outgoing terminals, the adjusting handle faces the outside of the drawer, the three incoming terminals and the three outgoing terminals are vertically and symmetrically arranged on both sides of the adjusting handle in the horizontal direction, and the side of the air switch 32 away from the adjusting handle is fixedly connected with the air switch fixing plate 31.

[0029] In the embodiment, the silicon assembly 12 is horizontally arranged in a plurality of, which can be three, and the three silicon assemblies 12 are arranged on one side of the silicon assembly fixing plate 11 in the height direction at intervals.

[0030] In the embodiment, the contactor assembly 2 is horizontally arranged in a plurality of, which can be three, and the three contactor assemblies 2 are fixedly connected on the air switch fixing plate 31 in the height direction through the contactor fixing plate 21.

[0031] In the embodiment, the specific installation steps can be that the air switch fixing plate 31 is vertically arranged, the air switch 32 is fixedly connected on one side of the air switch fixing plate 31 by screws, the bypass contactor 22 is fixed on the contactor fixing plate 21 by screws, the contactor fixing plate 21 is fixed on the other side of the air switch fixing plate 31, the silicon assembly 12 is fixed on the silicon assembly fixing plate 11 by screws, and the silicon assembly fixing plate 11 is then fixed on one end face of the air switch fixing plate 31 in the horizontal direction by screws, so that all the components are fixed on the air switch fixing plate 31 to form an integral whole. Since the air switch 32 is arranged on the side, the three incoming terminals and the three outgoing terminals are vertically arranged and correspond to the positions of the silicon assembly 12 and the contactor assembly 2 arranged in the height direction at intervals, forming a three-layer arrangement, so that the wiring can be overlapped in three layers.

[0032] In the embodiment, as shown in Figure 3 , the air switch fixing plate 31 is detachably connected with the drawer cabinet 4 through a fixed cross rod 43.

[0033] In the embodiment, as shown in Figure 2As shown, the silicon assembly 12 includes a silicon core 121 and a heat sink 122 arranged outside the silicon core 121, the drawer cabinet 4 is provided with an incoming line terminal 41 and an outgoing line terminal 42, the incoming line terminal 41 is connected to the incoming line end of the air switch 32 through the first connecting copper bar 6, the outgoing line end of the air switch 32 is connected to the incoming line end of the silicon assembly 12 through the second connecting copper bar 7, the outgoing line end of the silicon assembly 12 is connected to the outgoing line terminal 42 through the third connecting copper bar 8, the second connecting copper bar 7 is connected to the fourth connecting copper bar 9 through the heat sink 122, the incoming line end of the bypass contactor 22 is connected to the fourth connecting copper bar 9, and the outgoing line end of the bypass contactor 22 is connected to the third connecting copper bar 8 through the fifth connecting copper bar 10. The silicon core 121 included in the silicon assembly 12 can be provided as two, and the heat sink 122 can be provided as three, which are a first heat sink, a second heat sink and a third heat sink (as shown in Figure 2 As shown, the second heat sink is arranged between the first heat sink and the third heat sink from left to right), the second connecting copper bar 7 is connected to one side of the second heat sink, which is the incoming line end of the silicon assembly 12, the third connecting copper bar 8 is connected to the first heat sink and the third heat sink respectively, which is the outgoing line end of the silicon assembly 12, the second connecting copper bar 7 can pass through the second heat sink and then pass through the silicon core 121 to communicate with the first heat sink and the third heat sink respectively, and the fourth connecting copper bar 9 is connected to the other side of the second heat sink, so that when the bypass contactor 22 is turned on, the second connecting copper bar 7 and the fourth connecting copper bar 9 are directly connected through the second heat sink.

[0034] In this embodiment, the integrated soft start assembly further includes current transformers 5 for measuring and monitoring current, which can be provided as three, one end of the current transformer 5 is electrically connected to the air switch assembly 3, and the other end is electrically connected to the soft start assembly 1.

[0035] In this embodiment, the device circuit is divided into a soft start circuit and a bypass circuit, the soft start circuit is that the incoming line terminal 41 is connected to the air switch 32 through the first connecting copper bar 6, connected to the current transformer 5 through the second connecting copper bar 7, then connected to the second heat sink of the silicon assembly 12, connected to the first heat sink and the third heat sink through the two silicon cores 121 respectively, and finally connected to the outgoing line terminal 42 through the two third connecting copper bars 8; the bypass circuit is that the incoming line terminal 41 is connected to the air switch 32 through the first connecting copper bar 6, connected to the current transformer 5 through the second connecting copper bar 7, then the second connecting copper bar 7 is connected to the second heat sink of the silicon assembly 12, the second heat sink is connected to the bypass contactor 22 through the fourth connecting copper bar 9, at this time, since the bypass contactor 22 is controlled to be turned on, the silicon core 121 is out of work, and finally the bypass contactor 22 is connected to the third connecting copper bar 8 through the fifth connecting copper bar 10 to connect the outgoing line terminal 42.

[0036] The above merely describes preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A drawer type soft-starter device comprising a drawer cabinet (4), characterized in that, The drawer cabinet body (4) is detachably provided with an integrated soft start integral component, the integrated soft start integral component comprises a soft start assembly (1) for soft starting a motor, a contactor assembly (2) for bypassing the soft start assembly (1) and connecting with the motor after the soft start of the motor, and an air switch assembly (3) for providing overload and short circuit protection, the soft start assembly (1), the contactor assembly (2) and the air switch assembly (3) are fixed and electrically connected into one whole. The soft start assembly (1) comprises a silicon assembly fixing plate (11) and a silicon assembly (12) arranged on the silicon assembly fixing plate (11), the contactor assembly (2) comprises a contactor fixing plate (21) and a bypass contactor (22) arranged on the contactor fixing plate (21), and the air switch assembly (3) comprises an air switch fixing plate (31) and an air switch (32) arranged on the air switch fixing plate (31), the silicon assembly fixing plate (11) and the contactor fixing plate (21) are both fixed on the air switch fixing plate (31).

2. The drawer-type soft-starter of claim 1, wherein, The air switch fixing plate (31) is vertically arranged, the air switch (32) is provided with an adjusting handle and a plurality of wiring terminals, the adjusting handle faces the outside of the drawer, a plurality of the wiring terminals are vertically and symmetrically arranged on both sides of the adjusting handle in the horizontal direction, and the side of the air switch (32) away from the adjusting handle is fixed to the air switch fixing plate (31).

3. The drawer-type soft-starter of claim 1, wherein, A plurality of the silicon assemblies (12) are horizontally arranged, and the plurality of silicon assemblies (12) are arranged on one side of the silicon assembly fixing plate (11) in the height direction, and the other side of the silicon assembly fixing plate (11) is fixed to the air switch fixing plate (31).

4. The drawer-type soft-starter of claim 1, wherein, A plurality of the contactor assemblies (2) are horizontally arranged, and a plurality of the contactor fixing plates (21) are also arranged in a matched manner, and the plurality of contactor fixing plates (21) are fixed to the air switch fixing plate (31) in the height direction.

5. The drawer-type soft-starter of claim 1, wherein, The air switch fixing plate (31) is detachably connected to the drawer cabinet body (4) through a fixed horizontal rod (43).

6. The drawer-type soft-starter device according to any one of claims 1-5, characterized in that, The silicon assembly (12) comprises a silicon core (121) and a heat sink (122) arranged outside the silicon core (121), the drawer cabinet body (4) is provided with an incoming line terminal (41) and an outgoing line terminal (42), the incoming line terminal (41) is connected to the incoming line end of the air switch (32) through a first connecting copper bar (6), the outgoing line end of the air switch (32) is connected to the incoming line end of the silicon assembly (12) through a second connecting copper bar (7), the outgoing line end of the silicon assembly (12) is connected to the outgoing line terminal (42) through a third connecting copper bar (8), the second connecting copper bar (7) is connected to a fourth connecting copper bar (9) through the heat sink (122), the incoming line end of the bypass contactor (22) is connected to the fourth connecting copper bar (9), and the outgoing line end of the bypass contactor (22) is connected to the third connecting copper bar (8) through a fifth connecting copper bar (10).

7. The drawer-type soft-starter of any one of claims 1-5, wherein, The integrated soft start integral component further comprises a current transformer (5) for measuring and monitoring electric current, one end of the current transformer (5) being electrically connected with the air break assembly (3), and the other end being electrically connected with the soft start assembly (1).

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