CN217883210U - Air-cooled power regulating power supply device for thyristor - Google Patents

Abstract

The utility model relates to a thyristor air-cooled power regulating power supply device, which belongs to the field of semiconductor switches. The device includes cabinet top fan, cabinet body, cabinet air duct, synchronous trigger board assembly, voltage divider board assembly, high voltage vacuum contactor, overvoltage protector, bottom support, heater, transformer, temperature and humidity control assembly, thyristor module group , High-voltage cable binding beams, contactor outgoing copper bars, incoming copper bars, outgoing copper bars, and low-voltage control cabins. The temperature and humidity control components are evenly installed in the front and rear parts to ensure the life and safety of the device. The secondary control circuit components are installed in the low-pressure compartment of the door panel. Its advantages are: making full use of the space in the cabinet to meet the high-voltage insulation requirements; improving the cooling efficiency of the thyristor module group, improving the processing and maintenance efficiency, and increasing the overall aesthetics of the device.

Description

A thyristor air-cooled power adjustment power supply device

technical field

The utility model belongs to the field of semiconductor switches and relates to a thyristor air-cooled power regulating power supply device.

Background technique

At present, the circuit topology of the power regulation power supply device mainly adopts the method of adjusting the input voltage to control the soft start and stop of the motor, that is, adding a three-inverse parallel thyristor component module in series between the power supply and the controlled motor, and controlling the conduction angle of the thyristor Realize the chopping of the AC three-phase power supply, control the amplitude of the output voltage, and during the starting process of the motor, the power adjustment power supply device increases the terminal voltage of the motor according to the set starting curve to make the motor accelerate smoothly. However, the structural design of the power regulating power supply device is various, and different structural layouts have a great influence on the circuit distribution parameters, reliability and heat dissipation performance of the power regulating power supply device.

Utility model content

In view of this, the purpose of this utility model is to provide a thyristor air-cooled power regulation power supply device, to provide a simple, optimized and reliable thyristor air-cooled power regulation power supply device structural design, under the premise of satisfying the electrical performance, Improve reliability, save raw materials, facilitate assembly and production, improve processing and maintenance efficiency, enhance the overall aesthetics of the device, reduce the cost of the device, and enhance the overall aesthetics of the device.

In order to achieve the above object, the utility model provides the following technical solutions:

A thyristor air-cooled power adjustment power supply device, comprising a cabinet top fan 1, a cabinet body 2, an air duct inside the cabinet 3, a synchronous trigger board assembly 4, a voltage divider board assembly 5, a high-voltage vacuum contactor 6, an overvoltage protector 7, Bottom support 8, temperature and humidity control component 11, thyristor module group 12, high-voltage cable insulation binding beam 13, incoming copper bar 15, outgoing copper bar 16;

The cabinet body is fixed on the bottom bracket 8, and the cabinet body is divided into two parts: a thyristor module group 12 in front of the cabinet and an incoming copper bar 15 and an outgoing copper bar 16 behind the cabinet through the air duct 3 in the cabinet;

Install high-voltage vacuum contactor 6, synchronous trigger board assembly 4, voltage divider board assembly 5, and overvoltage protector 7 on the rear incoming line of the cabinet;

The high-voltage cable connection part in the cabinet passes through the high-voltage cable insulation binding beam 13;

The air-cooled thyristor power modules in the thyristor module group 12 on the thyristor module assembly side in front of the cabinet are all equipped with guide rails and ventilation holes, and the thyristor assemblies dissipate heat through the air duct 3 in the cabinet;

The temperature and humidity control components 11 are evenly distributed in the front and rear parts to ensure the life and safety of the device;

The secondary control circuit components and low-voltage components are installed on the door panel of the cabinet body 2 .

Optionally, a heater 9 and a transformer 10 are also provided on the front part of the cabinet of the bottom bracket 8; the heater 9 is connected to the temperature and humidity control assembly 11;

The high-voltage vacuum contactor 6 at the front part of the cabinet is also connected to the contactor outlet copper bar 14 .

Optionally, there is a low-voltage control cabin 17 on the door panel, and a small low-pressure cabin door is opened on the door panel, and secondary control circuit devices and low-voltage components are installed in the low-voltage control cabin 17 of the cabinet.

Optionally, the thyristor module assembly is supported by glass channel steel, the radiator of each thyristor module directly corresponds to the air duct hole, each item is safely isolated by an insulating plate, and an air duct is formed to facilitate heat dissipation.

Optionally, there are 9 air-cooled thyristor power modules in total, about 3 of which are arranged in each group to form one of the AC ABC three-phases, and the ABC items are in order from top to bottom.

Optionally, the air-cooled thyristor power module is fixed on an insulating support beam and installed independently, and independent ventilation holes are opened on the insulating backplane.

Optionally, the high-voltage vacuum contactor 6, the incoming copper bar 15 and the outgoing copper bar 16 are fixed on the rear side of the cabinet and connected by bus bars.

Optionally, the secondary control loop device is connected to the overvoltage protector 7 to prevent device damage caused by overvoltage.

Optionally, the inner side of the frame of the cabinet body 2 is provided with iron wiring grooves.

Optionally, the high-voltage cable insulation binding beam 13 is insulating glass channel steel.

The beneficial effects of the utility model are:

The power module is "an air-cooled thyristor power module", which has good high-voltage insulation performance, high heat dissipation efficiency, reasonable and simple structure, and reliable performance.

The cabinet frame is developed for the splicing skeleton, which is flexible in use, low in cost, saves raw materials, and reliable in quality.

The cabinet body is fixed on the bottom bracket by a cabinet body, and the cabinet body is divided into two parts: the thyristor module assembly in front of the cabinet and the incoming and outgoing lines at the back of the cabinet through the air duct. Easy installation, good structural strength and convenient transportation.

Each "one-of-a-kind thyristor air-cooled power module" is fixed on an insulating support beam, and can be installed and maintained independently. There are independent ventilation holes on the insulating backplane to increase insulation performance and heat dissipation efficiency.

There is a small door and a low-voltage compartment embedded in the front door of the cabinet, and the secondary control circuit board and low-voltage components are installed in the low-voltage compartment, which completely isolates the circuit board and low-voltage components from the high-voltage circuit, which is better protected secondary control loop.

The control cable routing trough is made of iron, which completely separates the secondary control loop cable from the main loop to ensure that the secondary control loop is not affected by the interference of the main loop.

The incoming and outgoing copper bar connectors are placed in the middle of the back of the cabinet, and the overvoltage protector is fixed directly below the outgoing busbars to facilitate on-site wiring.

Other advantages, objectives and features of the present utility model will be set forth in the following description to some extent, and to some extent, based on the investigation and research below, it will be obvious to those skilled in the art, or can be Get teaching from the practice of the utility model. The objectives and other advantages of the utility model can be realized and obtained through the following description.

Description of drawings

In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be described in detail below in conjunction with the accompanying drawings, wherein:

Fig. 1 is the perspective view of the utility model;

Fig. 2 is the appearance three-dimensional view of the utility model;

Fig. 3 is a perspective view of the thyristor module assembly of the present invention.

Reference signs: cabinet top fan 1, cabinet body 2, cabinet air duct 3, synchronous trigger board assembly 4, pressure divider board assembly 5, high-voltage vacuum contactor 6, overvoltage protector 7, bottom bracket 8, heater 9, Transformer 10, temperature and humidity control component 11, thyristor module group 12, high voltage cable insulation binding beam 13, contactor outgoing copper bar 14, incoming copper bar 15, outgoing copper bar 16, low voltage control cabin 17.

Detailed ways

The implementation of the present utility model is described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. The utility model can also be implemented or applied through other different specific implementation modes, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the utility model. It should be noted that the illustrations provided in the following embodiments are only schematically illustrating the basic idea of the present utility model, and the following embodiments and the features in the embodiments can be combined with each other in the case of no conflict.

Wherein, accompanying drawing is only for exemplary illustration, and what represent is only schematic diagram, rather than physical figure, can not be interpreted as the restriction to the utility model; In order to better illustrate the embodiment of the utility model, some parts of accompanying drawing will The omission, enlargement or reduction does not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

In the accompanying drawings of the utility model embodiment, the same or similar symbols correspond to the same or similar parts; The orientation or positional relationship indicated by "right", "front", "rear", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying the referred device Or elements must have a specific orientation, structure and operation with a specific orientation, so the terms describing the positional relationship in the drawings are only for illustrative purposes, and cannot be understood as limitations on the present utility model. For those of ordinary skill in the art , the specific meanings of the above terms can be understood according to specific situations.

A thyristor air-cooled power adjustment power supply device as shown in Figure 1, which includes a cabinet top fan 1, a cabinet body 2, an air duct inside the cabinet 3, a synchronous trigger board assembly 4, a voltage divider board assembly 5, and a high-voltage vacuum contactor 6 , overvoltage protector 7, bottom bracket 8, heater 9, transformer 10, temperature and humidity control component 11, thyristor module group 12, high-voltage cable insulation binding beam 13, contactor outgoing copper bar 14, incoming copper bar 15, Outlet copper bar 16, low-voltage control compartment 17. The cabinet body is fixed on the bottom bracket by a cabinet body, and the cabinet body is divided into two parts: the thyristor module assembly in front of the cabinet and the incoming and outgoing lines at the back of the cabinet through the air duct.

As shown in Figure 1, large devices such as high-voltage vacuum contactors, synchronous triggers, and overvoltage protectors are reasonably installed on the inlet and outlet sides of the cabinet.

As shown in Figure 1, the thyristor module group in front of the cabinet is installed with a fixed thyristor unit

As shown in Figure 1, the overvoltage protector is connected to the circuit to prevent device damage caused by overvoltage.

As shown in Figure 1, the incoming and outgoing copper bar contacts are placed in the middle of the back of the cabinet, and the overvoltage protector is fixed directly below the outgoing busbar to facilitate on-site wiring.

As shown in Figure 2, the secondary control circuit board and low-voltage components are installed in the low-voltage compartment on the front door panel, and the cables are connected to the wiring trough in the cabinet through the opening on the side of the low-voltage compartment.

As shown in Figure 3, the power module is "an air-cooled thyristor power module", with a total of 9 pieces, and every 3 pieces are arranged to form one of the AC ABC three-phases, and the ABC items are in order from top to bottom.

As shown in Figure 3, the power modules in the thyristor module group are equipped with guide rails, which are convenient for installation and maintenance and have independent ventilation holes to avoid temperature accumulation between modules and increase heat dissipation efficiency at the same time. The temperature and humidity control components are evenly distributed in the two cabinets to ensure the life and safety of the devices.

Finally, it is noted that the above embodiments are only used to illustrate the technical solutions of the present utility model without limitation. Although the utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the utility model can be Modifications or equivalent replacements of the technical solutions without departing from the spirit and scope of the technical solutions shall be covered by the claims of the present utility model.

Claims (10)

1. A thyristor air-cooled power-adjusting power supply device, characterized in that it includes a cabinet top fan (1), a cabinet body (2), an air duct in the cabinet (3), a synchronous trigger board assembly (4), and a voltage divider board assembly (5), high-voltage vacuum contactor (6), overvoltage protector (7), bottom bracket (8), temperature and humidity control component (11), thyristor module group (12), high-voltage cable insulation binding beam (13) , incoming copper bar (15), outgoing copper bar (16); The cabinet body is fixed on the bottom support (8), and the cabinet body is divided into a thyristor module group (12) in front of the cabinet and an incoming copper bar (15) and an outgoing copper bar behind the cabinet through the air duct (3) in the cabinet. (16) two parts; Install a high-voltage vacuum contactor (6), a synchronous trigger board assembly (4), a voltage divider board assembly (5), and an overvoltage protector (7) on the rear incoming line of the cabinet; The high-voltage cable connection part in the cabinet passes through the high-voltage cable insulation binding beam (13); The air-cooled thyristor power modules in the thyristor module group (12) on the side of the thyristor module assembly in front of the cabinet are all equipped with guide rails and ventilation holes, and the thyristor assembly dissipates heat through the air duct (3) in the cabinet; The temperature and humidity control components (11) are evenly installed in the front and rear parts to ensure the life and safety of the device; Secondary control circuit devices and low-voltage components are installed on the door panel of the cabinet body (2). 2. A thyristor air-cooled power regulating power supply device according to claim 1, characterized in that: a heater (9) and a transformer (10) are also provided on the front part of the bottom bracket (8); The heater (9) is connected to the temperature and humidity control assembly (11); The high-voltage vacuum contactor (6) at the front part of the cabinet is also connected with the contactor outlet copper bar (14). 3. A thyristor air-cooled power-adjusting power supply device according to claim 1, characterized in that: said door panel is provided with a low-voltage control cabin (17), and the door panel is provided with a low-pressure cabin door, and the secondary control circuit Devices and low-voltage components are installed in the cabinet low-voltage control compartment (17). 4. A thyristor air-cooled power regulating power supply device according to claim 1, characterized in that: the thyristor module assembly is supported by glass channel steel, the radiator of each thyristor module directly corresponds to the air duct hole, each The insulation boards are used for safety isolation and air ducts are formed to facilitate heat dissipation. 5. A thyristor air-cooled power-adjusting power supply device according to claim 1, characterized in that: there are 9 air-cooled thyristor power modules in total, and each group of 3 is arranged to form one of the AC ABC three-phase , from top to bottom are ABC items. 6. A thyristor air-cooled power-adjusting power supply device according to claim 5, characterized in that: said air-cooled thyristor power module is fixed on an insulating support beam and installed independently, and the insulating backboard is provided with independent ventilation hole. 7. A thyristor air-cooled power adjustment power supply device according to claim 1, characterized in that: the high-voltage vacuum contactor (6), the incoming copper bar (15) and the outgoing copper bar (16) are fixed on The rear side of the cabinet is connected by bus bars. 8. A thyristor air-cooled power regulating power supply device according to claim 1, characterized in that: the secondary control circuit device is connected to an overvoltage protector (7) to prevent device damage caused by overvoltage. 9. A thyristor air-cooled power-adjusting power supply device according to claim 1, characterized in that: the inside of the frame of the cabinet body (2) is provided with iron wiring grooves. 10. A thyristor air-cooled power regulating power supply device according to claim 9, characterized in that: the high-voltage cable insulation binding beam (13) is an insulating glass channel steel.

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