CN215300479U - Compact variable frequency control cabinet - Google Patents

Abstract

The utility model relates to a compact variable frequency control cabinet, it includes the cabinet body, with cabinet body articulated cabinet door, still including heat-conducting plate and a plurality of cooling tube that are used for installing the converter unit, the heat-conducting plate sets up in the cabinet internally, the opposite side contact of converter unit is kept away from to cooling tube and heat-conducting plate, and is a plurality of the range direction distribution of converter unit is followed to the cooling tube, but the intraductal refrigerant and the cooling tube that lead to of circulating flow of cooling tube are provided with the flow valve, the cooling tube is connected with and is used for carrying out circulative cooling's a heat radiation structure to the refrigerant. This application has and to realize cooling the converter unit difference to reach the effect of the live time of extension converter unit.

Description

Compact variable frequency control cabinet

Technical Field

The application relates to the field of control cabinets, in particular to a compact variable frequency control cabinet.

Background

The frequency converter unit mainly comprises a rectifying unit (alternating current to direct current), a filtering unit, an inverting unit (direct current to alternating current), a braking unit, a driving unit, a detecting unit, a micro-processing unit and the like.

The frequency conversion control cabinet is an article for depositing the converter unit by the cold-rolled steel sheet or alloy preparation, can provide the protection to depositing equipment, and along with the power continuous increase and the long-time operation of converter unit, the converter unit can produce a large amount of heats to the operational environment temperature that leads to the converter unit rises, influences the normal operating of converter unit, causes the damage even.

In order to solve the above problems and achieve the heat dissipation effect, the current heat dissipation method of the frequency conversion control cabinet in the market often adopts a method of arranging a heat dissipation airflow port on the frequency conversion control cabinet body and installing a ventilator on one side of the heat dissipation airflow port, and the ventilator blows air to accelerate the exchange of internal and external air, so as to dissipate heat.

In view of the above-mentioned related technologies, the inventor believes that there is a problem that, because the distribution areas and heat productivity of the frequency converter units in the electrical cabinet are different, and the heat dissipation airflow openings of the conventional frequency conversion control cabinet are distributed and fixed, heat dissipation is uniformly performed on the frequency converter units, and heat dissipation resources are not reasonably distributed, so that part of the frequency converter units cannot dissipate heat in time and are easily damaged.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, distinguish the cooling to the converter unit to heat dissipation resource rational distribution, and then avoid partial converter unit to damage because of can not in time dispel the heat, this application provides a compact variable frequency control cabinet.

The application provides a compact variable frequency control cabinet adopts following technical scheme:

the utility model provides a compact variable frequency control cabinet, includes the cabinet body, with cabinet body articulated cabinet door, still including heat-conducting plate and a plurality of cooling tube that are used for installing the converter unit, the heat-conducting plate sets up in the cabinet internally, the opposite side contact of converter unit is kept away from to cooling tube and heat-conducting plate, and is a plurality of the range direction distribution of converter unit is followed to the cooling tube, but it has circulating flow's refrigerant and cooling tube to lead to in the cooling tube and is provided with the flow valve, the cooling tube is connected with and is used for carrying out circulative cooling's a heat radiation structure to the refrigerant.

Through adopting above-mentioned technical scheme, when frequency conversion control cabinet operates, the heat that the converter unit produced can lead the opposite side of heat-conducting plate through the heat-conducting plate, refrigerant in the cooling tube can absorb these heats, then through first heat radiation structure circulative cooling, can also reduce the flow that corresponds the cooling tube of the converter unit that calorific capacity is little through the flow valve, the increase corresponds the flow of the cooling tube of the converter unit that calorific capacity is big, change the local heat exchange efficiency of heat-conducting plate through adjusting the refrigerant flow, with this to distinguish the cooling to the converter unit, thereby to heat dissipation resources rational distribution, and then avoid partial converter unit to damage because of can not in time dispel the heat, and the heat dissipation efficiency is improved.

Preferably, the first heat dissipation structure comprises a water pump, a water tank, a water inlet pipe and a water outlet pipe, the water tank is arranged outside the cabinet body, the water tank is provided with a water inlet and a water outlet, the water tank is provided with a second heat dissipation structure, the water inlet pipe is connected with the water outlet, the water outlet pipe is connected with the water inlet, two ends of the heat dissipation pipe are respectively communicated with the water inlet pipe and the water outlet pipe, and the water pump is used for driving a refrigerant to circularly flow among the water tank, the water inlet pipe, the heat dissipation pipe and the water outlet pipe.

Through adopting above-mentioned technical scheme, when variable frequency control cabinet operated, the heat that the converter unit produced can lead the opposite side of heat-conducting plate through the heat-conducting plate, and refrigerant in the cooling tube can absorb these heats, then through the water pump, and refrigerant in the cooling tube can get into the water tank through the outlet pipe, and refrigerant in the water tank dispels the heat through second heat radiation structure, and the cooling tube is got back to again through the water pump to the refrigerant after the heat dissipation, reaches the circulative cooling of refrigerant.

Preferably, the water inlet pipe and the water outlet pipe are connected with the radiating pipe through flanges.

Through adopting above-mentioned technical scheme, flange joint's mode can conveniently be dismantled the cooling tube, is convenient for change or wash the cooling tube, prolongs the life of cooling tube.

Preferably, the second heat dissipation structure comprises a plurality of heat dissipation fins, one side of each heat dissipation fin is connected to the inner wall of the water tank, and the other side of each heat dissipation fin extends out of the water tank.

Through adopting above-mentioned technical scheme, the fin has increased the heat transfer area of refrigerant with external contact for the heat dissipation has promoted the radiating efficiency.

Preferably, the water tank is provided with a water changing port, and the water changing port is covered with a sealing cover.

Through adopting above-mentioned technical scheme, can change the refrigerant in the water tank through trading the water gap to avoid first heat radiation structure's refrigeration effect to reduce, prolong first heat radiation structure's life.

Preferably, the heat dissipation airflow opening is located the cabinet body top and the heat dissipation airflow opening is provided with the exhaust fan, the cabinet body is provided with the inside exhaust storehouse with heat dissipation airflow opening intercommunication outward, the first thermovent with external intercommunication is seted up to the side in exhaust storehouse, first thermovent department is provided with first filtration, the cabinet body side has been seted up the second thermovent, second thermovent department is provided with the second filtration.

Through adopting above-mentioned technical scheme, when variable frequency control cabinet operates, the user opens the air discharge fan and exhausts, the internal air of cabinet is in through the heat dissipation air current mouth to the exhaust storehouse, the air in the exhaust storehouse is discharged by first thermovent after filtering through first filtration again, prevent that the dust from getting into the cabinet body and influencing the operation of converter unit, because the internal and external atmospheric pressure difference that produces of cabinet behind the air discharge fan exhaust, it is internal that the air gets into the cabinet through the second thermovent of side after filtering through the second filtration, the internal and external circulation of air of cabinet, when first heat radiation structure trouble or water-cooling structure heat dissipation are not enough, can open the air discharge fan and assist the heat dissipation.

Preferably, the first filtering structure comprises a first filtering net, a slot is formed in the top end of the exhaust bin, the first filtering net is in inserting fit with the slot, and the first filtering net covers the first heat dissipation opening when being inserted into the slot.

Through adopting above-mentioned technical scheme, first filter screen can filter the dust in the air through first thermovent, prevents that air discharge fan and converter unit from piling up and damaging because of the dust, and when changing first filter screen, can extract first filter screen, the washing or the change of the first filter screen of being convenient for from the slot.

Preferably, the second filtering structure includes a second filter screen, and a first baffle and a second baffle which are respectively arranged on two sides of the second heat dissipation opening, a channel spliced with the second filter screen is formed between the first baffle and the second baffle, and the second filter screen covers the second heat dissipation opening when being spliced with the channel.

Through adopting above-mentioned technical scheme, the dust in the air that passes through the second thermovent can be filtered to the second filter screen, prevents that the converter unit from piling up and damaging because of the dust, and when changing the second filter screen, can extract the second filter screen from the passageway that first plate washer and second baffle formed, the washing or the change of the second filter screen of being convenient for.

Preferably, the radiating pipe is semicircular in cross section along the width direction thereof, and the planar one side of the radiating pipe is in contact with the other side of the heat conducting plate away from the frequency converter unit.

Through adopting above-mentioned technical scheme, the area of contact of cooling tube and heat-conducting plate can be increased to the planar one side of cooling tube and the mode of the contact of heat-conducting plate, strengthens the heat transfer efficiency between cooling tube and the heat-conducting plate.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the variable frequency control cabinet operates, heat generated by the frequency converter unit can be transmitted to a refrigerant in the radiating pipe through the heat conducting plate, then the refrigerant is subjected to circulating cooling through the first radiating structure, the flow of the radiating pipe corresponding to the frequency converter unit with small heat productivity can be reduced through the flow valve, the flow of the radiating pipe corresponding to the frequency converter unit with large heat productivity is increased, the local heat exchange efficiency of the heat conducting plate is changed by adjusting the flow of the refrigerant, so that the frequency converter unit is subjected to differential cooling, the radiating resources are reasonably distributed, further, the damage of part of the frequency converter unit due to the fact that the part of the frequency converter unit cannot radiate heat in time is avoided, and the radiating efficiency is improved;

2. the radiating pipe can be conveniently disassembled by the flange connection mode, so that the radiating pipe is convenient to replace or clean, and the service life of the radiating pipe is prolonged;

3. when the variable frequency control cabinet operates, the user opens the exhaust fan to exhaust, the cold air outside the cabinet body flows in from the second heat dissipation opening, the hot air inside the cabinet body flows in the exhaust bin from the heat dissipation air flow opening and then flows out from the first heat dissipation opening, therefore, the air flowing into the cabinet body is filtered by the first filtering structure and the second filtering structure respectively to filter dust, and therefore, when the first heat dissipation structure fails or the water cooling structure is insufficient in heat dissipation, the exhaust fan can be opened to assist in heat dissipation.

Drawings

Fig. 1 is an overall structural schematic diagram of a compact variable frequency control cabinet according to an embodiment of the present application.

Fig. 2 is a rear-view explosion schematic diagram of the compact variable frequency control cabinet according to the embodiment of the application.

Fig. 3 is a front-view exploded schematic view of the compact variable frequency control cabinet according to the embodiment of the present application.

Fig. 4 is a schematic side-view explosion diagram of the compact variable frequency control cabinet according to the embodiment of the application.

Fig. 5 is a bottom view of the compact variable frequency control cabinet of the embodiment of the application.

Fig. 6 is a schematic sectional view taken along line a-a in fig. 5.

Description of reference numerals: 1. a cabinet body; 2. a cabinet door; 3. a heat conducting plate; 4. a water pump; 5. a water tank; 51. a water inlet; 52. a water outlet; 6. a water inlet pipe; 7. a water outlet pipe; 8. a radiating pipe; 9. an exhaust fan; 10. an exhaust bin; 11. a first heat dissipation port; 12. a second heat dissipation port; 13. a first filter screen; 14. a slot; 15. a second filter screen; 16. a first baffle plate; 17. a second baffle plate; 18. a flow valve; 19. a heat sink; 20. changing a water gap; 21. and (7) sealing the cover.

Detailed Description

The present application is described in further detail below with reference to the accompanying drawings.

The embodiment of the application discloses compact variable frequency control cabinet. Referring to fig. 1, fig. 2, a compact variable frequency control cabinet includes the cabinet body 1, with cabinet body 1 articulated cabinet door 2, the vertical heat-conducting plate 3 that is provided with in the cabinet body 1, 3 side-mounting converter units of heat-conducting plate and opposite side and the contact of cooling tube 8, it has the refrigerant of circulative flow to lead to in the cooling tube 8, the array direction distribution of a plurality of cooling tubes 8 along the converter unit, cooling tube 8 is connected with and is used for carrying out circulative cooling's a heat radiation structure to the refrigerant, when the variable frequency control cabinet operates, the heat that the converter unit produced can pass through heat-conducting plate 3 and transmit the refrigerant in cooling tube 8, the refrigerant is through the circulative cooling of a heat radiation structure.

Referring to fig. 2, fig. 3, cabinet body 1 keeps away from a side lid of cabinet door 2 and is equipped with the fly leaf, fly leaf and the 1 bolted connection of the cabinet body, both ends and the 1 bolted connection of the cabinet body and heat-conducting plate 3 are on a parallel with the fly leaf about heat-conducting plate 3, and be located between fly leaf and the cabinet door 2, a plurality of converter units along horizontal direction interval distribution are a set of, vertical direction interval distribution is followed to multiunit converter unit, cooling tube 8 extends along the horizontal direction, cooling tube 8 is semi-circular along its width direction's cross-section, the opposite side contact of converter unit is kept away from with heat-conducting plate 3 to planar one side of cooling tube 8, 8 two of cooling tube are a set of, every group cooling tube 8 corresponds every group converter unit.

First heat radiation structure includes water pump 4, water tank 5, inlet tube 6, outlet pipe 7, water pump 4 sets up in the cabinet body 1 outside with water tank 5, water tank 5 is provided with second heat radiation structure, inlet tube 6 communicates the cabinet body 1 inside and outside and distributes in 3 both sides of heat-conducting plate with outlet pipe 7, outlet pipe 7 communicates with water tank 5, inlet tube 6 communicates with water pump 4, water pump 4 communicates with water tank 5, be provided with flow valve 18 on 8 both ends of cooling tube respectively with outlet pipe 7 and inlet tube 6's side flange joint and cooling tube 8, flow valve 18 can be used to the flow of the interior refrigerant of adjusting cooling tube 8, the refrigerant is at water tank 5, inlet tube 6, circulation flow between cooling tube 8 and the outlet pipe 7.

The second heat dissipation structure comprises heat dissipation fins 19, wherein 3 groups of heat dissipation fins 19 are respectively inserted into two side surfaces of the water tank 5, one side of each heat dissipation fin 19 is connected to the inner wall of the water tank 5, the other side of each heat dissipation fin extends out of the water tank 5, the heat dissipation fins 19 increase the heat exchange area of the refrigerant contacting with the outside, heat dissipation is accelerated, and heat dissipation efficiency is improved.

Referring to fig. 3, fig. 4, the heat dissipation airflow opening is seted up on the 1 top of the cabinet body, install an exhaust fan 9 in the heat dissipation airflow opening, exhaust fan 9 passes through the bolt fastening with the cabinet body 1, and 1 top bolt fastening of the cabinet body has an exhaust storehouse 10, exhaust storehouse 10 is cuboid form and inside intercommunication heat dissipation airflow opening, a first thermovent 11 has respectively been seted up to four sides in exhaust storehouse 10, first thermovent 11 department is provided with first filtration, three second thermovent 12 has been seted up to the 1 side of the cabinet body, second thermovent 12 is rectangular form, a plurality of second thermovents 12 are along vertical direction interval arrangement, second thermovent 12 department is provided with the second filtration. When the exhaust fan 9 exhausts, the cold air outside the cabinet 1 flows in from the second heat dissipation opening 12, and the hot air inside the cabinet 1 flows in the exhaust bin 10 from the heat dissipation airflow opening and then flows out from the first heat dissipation opening 11, so that the circulation of the air inside and outside the cabinet 1 is maintained, and the heat dissipation efficiency is improved.

The first filtering structure comprises a first filtering net 13, four inserting grooves 14 are further formed in the edge of the top end of the exhaust bin 10, one first filtering net 13 is inserted in each inserting groove 14, the first filtering net 13 covers the first heat dissipation opening 11 when being inserted into the inserting grooves 14, the second filtering structure comprises a second filtering net 15, a first baffle 16 and a second baffle 17 are welded on two sides of each second heat dissipation opening 12 respectively, the first baffle 16 and the second baffle 17 form a channel, the second filtering net 15 is inserted into the channel, and the second filtering net 15 covers the second heat dissipation opening 12 when being inserted into the channel.

Referring to fig. 5 and 6, the water tank 5 is provided with a water inlet 51, a water outlet 52 and a water changing port 20, the water outlet pipe 7 is communicated with the water tank 5 through the water inlet 51, the water inlet pipe 6 is communicated with the water pump 4, the water pump 4 is communicated with the water tank 5 through the water outlet 52, so that the refrigerant can circularly flow, the water changing port 20 is inserted with the sealing cover 21, when the refrigerant in the water tank 5 needs to be changed, the sealing cover 21 is opened, the refrigerant in the water tank 5 is changed through the water changing port 20, and the refrigerant can adopt liquid such as water, heat conducting oil and the like.

The implementation principle of a compact variable frequency control cabinet in the embodiment of the application is as follows: when the frequency conversion control cabinet is operated, the heat generated by the frequency converter unit can be transmitted to the other side of the heat conducting plate 3 through the heat conducting plate 3, the refrigerant in the radiating pipe 8 can absorb the heat, then, the coolant in the radiating pipe 8 enters the water tank 5 through the water outlet pipe 7 by the water pump 4, the coolant in the water tank 5 radiates heat through the radiating fins 19, the radiated coolant returns to the radiating pipe 8 again through the water pump 4, so as to realize the circulating cooling of the coolant, and the flow rate of the radiating pipe 8 corresponding to the frequency converter unit with small heating value can be reduced through the flow valve 18, the flow rate of the radiating pipe 8 corresponding to the frequency converter unit with large heating value can be increased, the heat exchange efficiency of the local part of the heat conducting plate 3 is changed by adjusting the flow of the refrigerant, so as to carry out differential cooling on the frequency converter unit, therefore, heat dissipation resources are reasonably distributed, damage to part of frequency converter units due to the fact that heat cannot be dissipated timely is avoided, and heat dissipation efficiency is improved.

When the variable frequency control cabinet operates, the user opens air discharge fan 9 and exhausts, the air in the cabinet body 1 gets into exhaust bin 10 through air discharge fan 9 in, the air in exhaust bin 10 is discharged by first thermovent 11 after filtering through first filter screen 13 again, prevent that the dust from getting into the cabinet body 1 and influencing the operation of converter unit, because air discharge fan 9 exhausts the back cabinet body 1 inside and outside production atmospheric pressure difference, outside air gets into the cabinet body 1 through the second thermovent 12 of side after filtering through second filter screen 15 in, the inside and outside circulation of air of cabinet body 1, when water-cooling structure trouble or water-cooling structure heat dissipation are not enough, can open air discharge fan 9 and carry out supplementary heat dissipation.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (9)

1. The utility model provides a compact variable frequency control cabinet, includes the cabinet body (1), with cabinet body (1) articulated cabinet door (2), its characterized in that: still including heat-conducting plate (3) and a plurality of cooling tube (8) that are used for installing the converter unit, heat-conducting plate (3) set up in the cabinet body (1), the opposite side contact of converter unit is kept away from with heat-conducting plate (3) to cooling tube (8), and is a plurality of cooling tube (8) distribute along the array direction of converter unit, but cooling tube (8) expert has circulating flow's refrigerant and cooling tube to be provided with flow valve (18), cooling tube (8) are connected with and are used for carrying out circulative cooling's first heat radiation structure to the refrigerant.

2. The compact variable frequency control cabinet according to claim 1, characterized in that: the first heat dissipation structure comprises a water pump (4), a water tank (5), a water inlet pipe (6) and a water outlet pipe (7), the water tank (5) is arranged outside the cabinet body (1), the water tank (5) is provided with a water inlet (51) and a water outlet (52), the water tank (5) is provided with a second heat dissipation structure, the water inlet pipe (6) is connected with the water outlet (52), the water outlet pipe (7) is connected with the water inlet (51), two ends of the heat dissipation pipe (8) are respectively communicated with the water inlet pipe (6) and the water outlet pipe (7), and the water pump (4) is used for driving a refrigerant to circularly flow among the water tank (5), the water inlet pipe (6), the heat dissipation pipe (8) and the water outlet pipe (7).

3. The compact variable frequency control cabinet according to claim 2, characterized in that: the water inlet pipe (6) and the water outlet pipe (7) are connected with the radiating pipe (8) through flanges.

4. The compact variable frequency control cabinet according to claim 2, characterized in that: the second heat dissipation structure comprises a plurality of heat dissipation fins (19), wherein one side of each heat dissipation fin (19) is connected to the inner wall of the water tank (5), and the other side of each heat dissipation fin (19) extends out of the water tank (5).

5. The compact variable frequency control cabinet according to claim 2, characterized in that: the water tank (5) is provided with a water changing port (20), and the water changing port (20) is covered with a sealing cover (21).

6. The compact variable frequency control cabinet according to claim 1, characterized in that: the heat dissipation airflow opening is located be provided with air discharge fan (9) in cabinet body (1) top and the heat dissipation airflow opening, the cabinet body (1) is provided with outside exhaust bin (10) of inside and heat dissipation airflow opening intercommunication, first thermovent (11) with external intercommunication are seted up to the side in exhaust bin (10), first thermovent (11) department is provided with first filtration, second thermovent (12) have been seted up to cabinet body (1) side, second thermovent (12) department is provided with second filtration.

7. The compact variable frequency control cabinet according to claim 6, characterized in that: the first filtering structure comprises a first filtering net (13), a slot (14) is formed in the top end of the exhaust bin (10), the first filtering net (13) is in plug-in fit with the slot (14), and the first filtering net (13) covers the first heat dissipation opening (11) when being plugged with the slot (14).

8. The compact variable frequency control cabinet according to claim 6, characterized in that: the second filtering structure comprises a second filtering net (15), a first baffle plate (16) and a second baffle plate (17) which are arranged on two sides of the second heat dissipation opening (12) respectively, a channel which is spliced with the second filtering net (15) is formed between the first baffle plate (16) and the second baffle plate (17), and the second filtering net (15) covers the second heat dissipation opening (12) when being spliced with the channel.

9. The compact variable frequency control cabinet according to claim 1, characterized in that: the cross-section of cooling tube (8) along its width direction is semicircular, the planar one side of cooling tube (8) and heat-conducting plate (3) keep away from the opposite side contact of converter unit.

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