CN220754626U

CN220754626U - Excitation rectifier cabinet

Info

Publication number: CN220754626U
Application number: CN202321778621.3U
Authority: CN
Inventors: 苏军; 沈晓艳; 李健; 付其军; 朱磊
Original assignee: Wuhan Lihua Electric Co ltd
Current assignee: Wuhan Lihua Electric Co ltd
Priority date: 2023-07-07
Filing date: 2023-07-07
Publication date: 2024-04-09
Anticipated expiration: 2033-07-07

Abstract

The utility model relates to the technical field of excitation cabinets and provides an excitation rectification cabinet which comprises a rectification cabinet body and a plurality of electronic components arranged in the rectification cabinet body, wherein the bottom of the rectification cabinet body is connected with a base, ventilation plates are fixedly arranged at the tops of the left side wall and the right side wall of the rectification cabinet body, ventilation openings formed in the side walls of the rectification cabinet body are formed below the ventilation plates, a box door is hinged and assembled on the front side wall of the rectification cabinet body through hinges, a visual window and a door handle are fixedly arranged on the surface of the box door, a moisture-proof plate is arranged in the base, a plurality of water collecting holes are uniformly formed in the surface of the moisture-proof plate, drainage holes are formed in one side of the outer part of the base, and a drainage valve is fixedly arranged on the drainage holes; the utility model can avoid equipment short circuit caused by overhigh temperature in the rectifying cabinet body, greatly protect electronic components in the rectifying cabinet body, prolong the service life of the whole equipment, avoid dust in the rectifying cabinet body, avoid equipment short circuit and improve the running stability of the equipment.

Description

Excitation rectifier cabinet

Technical Field

The utility model relates to the technical field of excitation cabinets, in particular to an excitation rectifying cabinet.

Background

Along with the rapid development of economy, the living standard of people is continuously improved, and the application of the excitation cabinet is also very wide. The exciting cabinet is an important component of the synchronous motor, the direct current excitation for the rotor winding of the synchronous generator is a necessary condition for converting mechanical energy into electric energy, and a source for supplying direct current to the exciting winding of the synchronous motor is generally called an exciting cabinet. The exciter tank plays an extremely important role for the operation of the generator set and thus the whole power grid. The exciting cabinet and the control have important effects on maintaining the voltage of the generator terminal of the generator, the reactive power distribution, static state and transient state stability limit among generator sets, inhibiting various oscillation phenomena and improving the dynamic quality of a power system.

The excitation rectifying cabinet has a plurality of working modes such as open loop control, constant current control, constant power control and the like. And the communication function is strong, and network control is convenient to carry out online. The device has perfect self-protection and self-diagnosis functions such as short-circuit protection, overcurrent protection, overtemperature protection, current limitation, voltage limitation, phase-failure protection, load disconnection and the like, and ensures long-term, stable and reliable operation of the device. The method is widely applied to the fields of direct current dragging, steel rolling, electrolysis, electroplating machine tools, papermaking, spinning, excitation, low-voltage large-current industrial electric furnaces and the like.

Through retrieval, the prior patent (bulletin number: CN 209184922U) discloses a heat dissipation structure of an excitation rectifying cabinet, which comprises a heat dissipation fan system and a standby fan system which are arranged at the inner bottom of the rectifying cabinet in a central symmetry manner, wherein the heat dissipation fan system and the standby fan system have the same structure; the heat dissipation fan system and the standby fan system respectively comprise a volute, a fan housing, an air duct and a centrifugal fan arranged in the volute, the fan housing is arranged at the top of the volute and is connected with the air inlet of the centrifugal fan and a shutter of a door plate through flange surfaces, the two ends of the air duct are respectively connected with the air inlet of the centrifugal fan and the shutter of the door plate, the fan housing is of a left half assembly structure and a right half assembly structure, six upward air outlets are arranged in the fan housing, and each air outlet is respectively opposite to each radiator in the rectifier cabinet. The utility model can improve the heat radiation effect, has high equipment efficiency, high fault protection reliability and good equipment maintainability.

However, the following problems are found in the implementation related art: (1) The heat radiation fan system does not effectively filter the air entering the box body, so that dust enters the box body to cause blockage and damage to equipment, and the service life of the equipment is reduced; (2) The structure can not effectively adsorb and remove the moisture in the box body, so that the electronic components in the box body are easily damaged by moisture, and even the circuit short circuit is induced to cause fire, so that great potential safety hazards exist, and design improvement is urgently needed.

Disclosure of Invention

The utility model provides an excitation rectifying cabinet, which aims to solve the problems of short service life and low equipment operation reliability of the existing excitation rectifying cabinet body.

The technical scheme of the utility model is as follows: the utility model provides an excitation rectifier cabinet, includes the rectifier cabinet body and locates a plurality of electronic components of the internal portion of rectifier cabinet, the bottom of the rectifier cabinet body is connected with the base, the equal fixed mounting in top of the left and right both sides wall of the rectifier cabinet body has the vent board, the below of vent board all is equipped with the vent of seting up on the side wall of the rectifier cabinet body, it is equipped with the chamber door to articulate through the hinge on the preceding lateral wall of the rectifier cabinet body, fixed mounting has visual window and door handle on the surface of chamber door, the inside of base is equipped with dampproofing board, a plurality of catchments holes have evenly been seted up on the surface of dampproofing board, the wash port has been seted up to outside one side of base, fixed mounting has the drain valve on the wash port.

Preferably, the ventilation board comprises a plurality of blend stops, a plurality of the blend stops are along the surface of ventilation board from top to bottom interval arrangement in proper order sets up, and adjacent be equipped with the space between the blend stops.

Preferably, the barrier strips are obliquely arranged at an angle of 15 degrees with the surface of the ventilation board.

Preferably, the ventilation board is located the inside one side fixedly connected with filter plate of rectification cabinet, fixedly mounted with fan frame on the filter plate, fixedly mounted with fan on the fan frame.

Preferably, a filter screen is arranged outside the fan, and the filter screen is an insulating material member.

Preferably, four groups of butt bolts are connected to four corners of the top of the base in a threaded manner, screw holes corresponding to the butt bolts are formed in the bottom of the rectifying cabinet body, and the base is assembled to the bottom of the rectifying cabinet body in a threaded manner through the four groups of butt bolts.

Preferably, the surface of the dampproof plate is coated with waterproof paint, drying agents are filled above the dampproof plate, and an opening is formed in the bottom of the rectifying cabinet body and communicated with the dampproof plate.

Preferably, the rectifying cabinet body is made of integrally formed aluminum alloy material, and the surface of the rectifying cabinet body is coated with waterproof paint and an insulating film.

The working principle and the beneficial effects of the utility model are as follows:

1. in the present utility model; through a plurality of blend stops of ventilation board surface mounting, can prevent that the dust from getting into the rectifier cabinet body, cause the jam to the electronic components in fan and the case to can implement the internal and external cold and hot circulation of rectifier cabinet under the effect of fan, thereby can avoid the internal high temperature of rectifier cabinet to cause the equipment short circuit, very big has protected the electronic components in the rectifier cabinet body, has improved the whole life of equipment.

2. In the present utility model; through the setting of filter plate, can filter the internal air of entering rectifier cabinet, and cooperate the filter screen to further improve the filter effect to can avoid the internal dust that produces of rectifier cabinet, its filter screen is insulating material, can avoid taking place the electrostatic reaction with the internal electronic components of rectifier cabinet, avoid causing equipment short circuit, improve equipment operating stability.

3. In the present utility model; the rectifier cabinet body adopts integrated into one piece's aluminum alloy material component, and the surface coating has waterproof paint and insulating film, the insulating properties of the rectifier cabinet body has been increased, when avoiding taking place the thunder and lightning, cause the box to switch on, influence normal power supply, and the drier of cooperation dampproof plate top can effectively adsorb the moist air in the rectifier cabinet body and get rid of, and draw dampproof plate below under the effect of catchment hole and store, and get effective collection in the wash port department, thereby can avoid the internal moist emergence of rectifier cabinet, get rid of the risk of wire joint short circuit.

Drawings

The utility model will be described in further detail with reference to the drawings and the detailed description.

Fig. 1 is a schematic view of an appearance structure of a rectifying cabinet according to the present utility model;

FIG. 2 is a schematic view of a base according to the present utility model;

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

FIG. 4 is a schematic diagram illustrating the assembly of a fan and a ventilation board according to the present utility model;

in the figure: 1. a rectifying cabinet body; 2. a base; 3. a ventilation board; 4. a vent; 5. a door; 6. a visual window; 7. a moisture-proof plate; 8. a water collecting hole; 9. a drain hole; 10. a drain valve; 11. a butt-joint bolt; 12. a fan base; 13. a barrier strip; 14. a filter plate; 15. a filter screen; 16. a blower.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1, 2, 3 and 4, the present utility model provides a technical solution: the utility model provides an excitation rectifier cabinet, including the rectifier cabinet body 1 with locate a plurality of electronic components of the inside of rectifier cabinet body 1, the bottom of the rectifier cabinet body 1 is connected with base 2, the equal fixed mounting in top of the left and right both sides wall of the rectifier cabinet body 1 has ventilating board 3, ventilating board 3's below all is equipped with the vent 4 of seting up on the side wall of the rectifier cabinet body 1, be equipped with chamber door 5 through the hinge on the preceding lateral wall of the rectifier cabinet body 1, fixed mounting has visual window 6 and door handle on the surface of chamber door 5, the inside of base 2 is equipped with dampproof plate 7, a plurality of catchments holes 8 have evenly been seted up on dampproof plate 7's surface, wash port 9 has been seted up to the outside one side of base 2, fixed mounting has drain valve 10 on the wash port 9.

Further, the ventilation board 3 is composed of a plurality of baffle strips 13, the baffle strips 13 are sequentially arranged at intervals from top to bottom along the surface of the ventilation board 3, gaps are arranged between adjacent baffle strips 13, and the baffle strips 13 and the surface of the ventilation board 3 are obliquely arranged at an angle of 15 degrees; through a plurality of blend stops 13 of 3 surface mounting at the ventilating board, can prevent that the dust from getting into in the rectification cabinet body 1, cause the jam to the electronic components of fan 16 and incasement to can implement the inside and outside cold and hot circulation of rectification cabinet body 1 under the effect of fan 16, thereby can avoid the interior high temperature of rectification cabinet body 1 to cause the equipment short circuit, very big has protected the electronic components in the rectification cabinet body 1, has improved the whole life of equipment.

Further, a filter plate 14 is fixedly connected to one side of the ventilation plate 3, which is positioned in the rectifying cabinet body 1, a fan seat 12 is fixedly arranged on the filter plate 14, a fan 16 is fixedly arranged on the fan seat 12, a filter screen 15 is arranged outside the fan 16, and the filter screen 15 is an insulating material member; through the setting of filter plate 14, can filter the air that gets into in the rectifier cabinet body 1, and cooperate filter screen 15 further to improve the filter effect to can avoid producing the dust in the rectifier cabinet body 1, its filter screen 15 is insulating material, can avoid taking place the electrostatic reaction with the electronic components in the rectifier cabinet body 1, avoid causing the equipment short circuit, improve equipment operating stability.

Further, four groups of butt bolts 11 are in threaded connection with four corners of the top of the base 2, screw holes corresponding to the butt bolts 11 are formed in the bottom of the rectifying cabinet body 1, and the base 2 is assembled at the bottom of the rectifying cabinet body 1 in threaded connection with the four groups of butt bolts 11; the rectifier cabinet body 1 can be quickly and fixedly installed through four groups of butt bolts 11, and meanwhile the rectifier cabinet is convenient to detach.

Further, the surface of the dampproof plate 7 is coated with waterproof paint, the upper part is filled with drying agent, the bottom of the rectifying cabinet body 1 is provided with an opening which is communicated with the dampproof plate 7, the rectifying cabinet body 1 adopts an integrally formed aluminum alloy material member, and the surface of the rectifying cabinet body is coated with waterproof paint and an insulating film; the insulating property of the rectifier cabinet body 1 is increased, when lightning is avoided, the box is electrified, normal power supply is affected, the drying agent matched with the upper side of the dampproof plate 7 can effectively adsorb and remove moist air in the rectifier cabinet body 1, the moist air is led to the lower side of the dampproof plate 7 for storage under the action of the water collecting hole 8, and the moist air is effectively collected at the position of the water discharging hole 9, so that the occurrence of moisture in the rectifier cabinet body 1 can be avoided, and the risk of short circuit of an electric wire joint is eliminated.

The working principle and the using flow of the utility model are as follows: the excitation rectifier cabinet is compact and reasonable in structural design and convenient to install and use, the base 2 and the rectifier cabinet body 1 can be quickly and fixedly installed through the four groups of butt bolts 11, the rectifier cabinet body 1 adopts integrally formed aluminum alloy members, and waterproof paint and an insulating film are coated on the surface of the rectifier cabinet body 1; the insulation performance of the rectifier cabinet body 1 is increased, the situation that the box body is electrified to influence normal power supply when thunder and lightning occurs is avoided, and the moisture air in the rectifier cabinet body 1 can be effectively adsorbed and removed by being matched with the desiccant above the moisture-proof plate 7, and is led to the lower part of the moisture-proof plate 7 for storage under the action of the water collecting holes 8, and is effectively collected at the water draining holes 9, so that the occurrence of moisture in the rectifier cabinet body 1 can be avoided, and the risk of short circuit of an electric wire connector is eliminated; through the arrangement of the filter plates 14, air entering the rectifying cabinet body 1 can be filtered, and the filter screen 15 is matched to further improve the filtering effect, so that dust generated in the rectifying cabinet body 1 can be avoided, the filter screen 15 is made of insulating materials, electrostatic reaction with electronic components in the rectifying cabinet body 1 can be avoided, equipment short circuit is avoided, and equipment operation stability is improved; meanwhile, the plurality of barrier strips 13 are arranged on the surface of the ventilation plate 3, so that dust can be prevented from entering the rectifying cabinet body 1, the fan 16 and electronic components in the box are blocked, and the internal and external cold and hot circulation of the rectifying cabinet body 1 can be implemented under the action of the fan 16, so that the short circuit of equipment caused by overhigh temperature in the rectifying cabinet body 1 can be avoided, the electronic components in the rectifying cabinet body 1 are protected, and the whole service life of the equipment is prolonged.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. The utility model provides an excitation rectifier cabinet, includes rectifier cabinet body (1) and locates a plurality of electronic components of rectifier cabinet body (1) inside, its characterized in that: the utility model discloses a novel rectifying cabinet, including rectifying cabinet body (1), base (2) are connected with to the bottom of rectifying cabinet body (1), all fixed mounting in top of the left and right both sides wall of rectifying cabinet body (1) has ventilating board (3), ventilating board (3)'s below all is equipped with vent (4) of seting up on rectifying cabinet body (1) lateral wall, be equipped with chamber door (5) through the hinge on rectifying cabinet body (1)'s the preceding lateral wall, fixed mounting has visual window (6) and door handle on the surface of chamber door (5), the inside of base (2) is equipped with dampproof plate (7), a plurality of catchments hole (8) have evenly been seted up to the surface of dampproof plate (7), wash port (9) have been seted up to outside one side of base (2), fixed mounting has drain valve (10) on wash port (9).

2. An excitation rectifier cabinet according to claim 1, wherein: the ventilating board (3) is composed of a plurality of barrier strips (13), the barrier strips (13) are sequentially arranged at intervals from top to bottom along the surface of the ventilating board (3), and gaps are formed between the adjacent barrier strips (13).

3. An excitation rectifier cabinet according to claim 2, wherein: the baffle strips (13) are obliquely arranged at an angle of 15 degrees with the surface of the ventilation board (3).

4. An excitation rectifier cabinet according to claim 1, wherein: the ventilating plate (3) is fixedly connected with a filter plate (14) at one side of the inside of the rectifying cabinet body (1), a fan base (12) is fixedly installed on the filter plate (14), and a fan (16) is fixedly assembled on the fan base (12).

5. An excitation rectifier cabinet according to claim 4, wherein: the outside of fan (16) is equipped with filter screen (15), filter screen (15) are insulating material component.

6. An excitation rectifier cabinet according to claim 1, wherein: four groups of butt bolts (11) are connected to four corners of the top of the base (2) in a threaded mode, screw holes corresponding to the butt bolts (11) are formed in the bottom of the rectifying cabinet body (1), and the base (2) is assembled to the bottom of the rectifying cabinet body (1) through the four groups of butt bolts (11) in a threaded mode.

7. An excitation rectifier cabinet according to claim 1, wherein: the surface of the dampproof plate (7) is coated with waterproof paint, a drying agent is filled above the dampproof plate, and an opening is formed in the bottom of the rectifying cabinet body (1) and communicated with the dampproof plate (7).

8. An excitation rectifier cabinet according to claim 1, wherein: the rectifying cabinet body (1) is made of integrally formed aluminum alloy material members, and waterproof paint and an insulating film are coated on the surface of the rectifying cabinet body.