CN216356428U

CN216356428U - Frequency converter and air conditioner unit with same

Info

Publication number: CN216356428U
Application number: CN202122221475.1U
Authority: CN
Inventors: 张良浩; 乔一伦; 孙瑞祥
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2021-09-14
Filing date: 2021-09-14
Publication date: 2022-04-19
Anticipated expiration: 2031-09-14

Abstract

The application provides a frequency converter and an air conditioner unit with the frequency converter, wherein the frequency converter comprises a first cavity and a second cavity, and a first element device group is arranged in the first cavity; a second component device group is arranged in the second chamber; the first chamber and the second chamber are arranged in a mutually heat-insulating manner. According to the frequency converter and the air conditioner unit with the frequency converter, the heat dissipation problem of the internal devices of the frequency converter can be effectively solved.

Description

Frequency converter and air conditioner unit with same

Technical Field

The application belongs to the technical field of air conditioners, and particularly relates to a frequency converter and an air conditioner unit with the frequency converter.

Background

At present, with the wider application and higher power of the commercial magnetic suspension central air conditioner, the traditional commercial magnetic suspension central air conditioner adopts a multi-machine head mode to realize the power requirement.

However, if the single-head solution is adopted in the prior art, the volume of the corresponding frequency converter is increased. The size and the number of internal components such as reactors, copper sheets, capacitors and the like are larger, the corresponding heat productivity is higher, and higher requirements are put forward on the heat dissipation of the frequency converter.

Therefore, how to provide an inverter capable of effectively solving the problem of heat dissipation of internal devices of the inverter and an air conditioner unit with the inverter becomes a problem which needs to be solved urgently by a person skilled in the art.

SUMMERY OF THE UTILITY MODEL

Therefore, the technical problem that this application will be solved lies in providing a converter and have its air conditioner unit, can effectively solve the inside device heat dissipation problem of converter.

In order to solve the above problem, the present application provides a frequency converter, including:

the device comprises a first chamber, a second chamber and a third chamber, wherein a first element device group is arranged in the first chamber;

a second chamber, in which a second element device group is arranged; the first chamber and the second chamber are arranged in a mutually heat-insulating manner.

Furthermore, the frequency converter also comprises a first heat dissipation structure and a second heat dissipation structure, wherein the first heat dissipation structure is used for dissipating heat of the first cavity; the second heat dissipation structure is used for dissipating heat of the second chamber.

Furthermore, the first heat dissipation structure is an external circulation heat dissipation structure; and/or the second heat dissipation structure is an internal circulation heat dissipation structure.

Further, the first heat dissipation structure comprises a first air guiding part; the first chamber is provided with an air inlet and an air outlet; the first air guide part is used for guiding air to enter the first cavity from the air inlet, flow through the first component assembly and flow out from the air outlet.

Furthermore, the first chamber is provided with a first inner wall, and the air inlet is arranged on the first inner wall; the first chamber is also provided with a second inner wall which is arranged opposite to the first inner wall, the air outlet comprises a first air outlet, and the first air outlet is arranged on the second inner wall;

further, the first component group includes reactors;

and/or the first component group further comprises a wire-incoming copper sheet structure.

Further, the first chamber is also provided with a third inner wall, the air outlet comprises a second air outlet, the second air outlet is arranged on the third inner wall, when the first component group comprises the reactor, the air inlet is positioned on one side of the reactor, and the third inner wall is positioned on the other side of the reactor.

Further, the first component group further includes a transformer; when the first component group comprises the reactor, the transformer is arranged on one side of the reactor close to the third inner wall;

and/or the first component device group further comprises a circuit breaker; when the first component group comprises the reactor, the reactor and the circuit breaker are arranged in sequence in the direction close to the second inner wall.

Further, the frequency converter further comprises a cooling dehumidification cavity, the cooling dehumidification cavity is communicated with the second cavity, a second air guide portion is arranged in the cooling dehumidification cavity, and the second air guide portion can guide gas to circulate in the cooling dehumidification cavity and the second cavity in an internal circulation mode.

Furthermore, the cooling and dehumidifying cavity is provided with a first ventilation opening which is communicated with the second cavity; still be provided with dehydrating unit in the cooling dehumidification intracavity, dehydrating unit's entry intercommunication second cavity, gas in the second cavity can get into dehydrating unit through dehydrating unit's entry, flow into the cooling dehumidification intracavity after dehumidifying, and the rethread first vent gets into in the second cavity.

Further, the second component group comprises a master control device and/or a switching power supply.

Further, when the second component includes a switching power supply, the position of the switching power supply corresponds to the position of the first vent;

and/or, when the second component comprises a master control device, the position of the master control device corresponds to the position of the inlet of the dehumidification device.

According to still another aspect of the application, an air conditioner unit is provided, which comprises a frequency converter.

The application provides a converter and have its air conditioner unit, two solitary cavities separate the temperature setting, can prevent that partial components and parts from leading to self to seriously fall the problem of holding because of giving out heat greatly, can prevent again that the heat accumulation that produces because of the device generates heat in the converter cabinet from leading to the problem that key device became invalid, can effectively solve the inside device heat dissipation problem of converter.

Drawings

Fig. 1 is a schematic structural diagram of a frequency converter according to an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a first chamber according to an embodiment of the present disclosure;

FIG. 3 is a schematic structural diagram of a second chamber according to an embodiment of the present disclosure;

FIG. 4 is a schematic view of a top cover of an embodiment of the present application;

fig. 5 is a schematic structural diagram of a first air guiding portion according to an embodiment of the present application.

The reference numerals are represented as:

1. a first chamber; 111. a reactor; 112. a transformer; 113. a circuit breaker; 114. a wire inlet copper sheet structure; 115. a first copper sheet lap joint; 12. a first air guiding part; 121. a first fan assembly; 122. a second fan assembly; 13. an air inlet; 14. an air outlet; 151. a first inner wall; 152. a second inner wall; 153. a third inner wall; 16. a top cover; 2. a second chamber; 21. a master control device; 22. a first switching power supply; 23. a second switching power supply; 24. a second copper sheet structure; 3. a cooling dehumidifying cavity; 31. a dehumidifying device; 32. a second air guiding part; 33. a water receiving part; 4. a partition portion.

Detailed Description

Referring to fig. 1-5 in combination, a frequency converter includes a first chamber 1 and a second chamber 2, wherein a first component group is disposed in the first chamber 1; a second component group is arranged in the second chamber 2; the first chamber 1 and the second chamber 2 are arranged in a mutually heat-insulating mode, so that the reactor 111 with large heat productivity can have a good heat dissipation environment, the problem that partial components are seriously reduced in capacity due to large heat productivity can be prevented, the problem that key components fail due to heat accumulation generated by the components in a frequency converter cabinet can be prevented, and the problem of heat dissipation of the components in the frequency converter can be effectively solved.

The application also discloses some embodiments, the frequency converter further comprises a first heat dissipation structure and a second heat dissipation structure, and the first heat dissipation structure is used for dissipating heat of the first cavity 1; the second heat dissipation structure is used for dissipating heat from the second chamber 2.

The application also discloses some embodiments, the first heat dissipation structure is an external circulation heat dissipation structure; and/or the second heat dissipation structure is an internal circulation heat dissipation structure. Under the working state, the heat dissipation capacity of the reactor 111 is larger than that of the second element device group, the reactor 111 is separated from other elements, and the two independent chambers independently dissipate heat respectively, so that the influence of the overhigh temperature of the reactor 111 in the first chamber 1 on the temperature of the second element device group in the second chamber 2 can be prevented, and the problem of uneven heat dissipation of the second element device group in the second chamber 2 caused by the overlarge output air volume when the first chamber 1 dissipates heat can be prevented as well.

The application also discloses some embodiments, the first heat dissipation structure comprises a first air guiding part 12; the first chamber 1 has an inlet 13 and an outlet 14; the first air guiding portion 12 is used for guiding air to enter the first chamber 1 from the air inlet 13, flow through the first element device group, and flow out from the air outlet 14, the first chamber 1 is not communicated with the second chamber 2, the first heat dissipation structure is an external circulation air duct structure, namely, cold air is continuously led in from the outside and is discharged, so that heat can be dissipated by using large air volume in the first chamber 1 to ensure the heat dissipation effect of the reactor 111, and the large air volume cannot influence the second chamber 2. The method and the device can solve the problem of capacity reduction caused by overhigh temperature rise of the high-power frequency converter component; the problem that other devices are invalid due to the fact that high-power frequency converter components generate large heat can be solved.

The application also discloses embodiments, the first chamber 1 has a first inner wall 151, and the air inlet 13 is disposed on the first inner wall 151; the first chamber 1 further has a second inner wall 152 arranged opposite to the first inner wall 151, the air outlet 14 includes a first air outlet 14, the first air outlet 14 is arranged on the second inner wall 152, the first component group such as the reactor 111 or other first component groups is arranged in the first chamber 1, air enters the first chamber 1 from the air inlet 13, flows through the first component group and flows out from the first air outlet 14, heat on the first component group can be effectively taken out, the first component group can be effectively cooled, the problem that the first component group seriously reduces the capacity of the first component group due to large heat generation is prevented, and the problem that key components fail due to heat accumulation generated by components in the frequency converter cabinet is also prevented. The frequency converter also comprises a shell, and a cooling and dehumidifying cavity 3, a second cavity 2 and a first cavity 1 are sequentially connected in the shell; the first chamber 1 is separated from the second chamber 2 by a partition 4. The first inner wall 151 is an inner wall of a bottom plate of the first chamber 1, and the second inner wall 152 is an inner wall of a top plate of the first chamber 1.

The application also discloses embodiments in which the first set of components includes a reactor 111.

The present application also discloses some embodiments, and the first component device group further includes a wire-feeding copper sheet structure 114. The first component group further comprises a first copper sheet lap joint part 115, a copper sheet, a first fan assembly 121 and a second fan assembly 122, and the copper sheet structure is connected with the circuit breaker 113 and the reactor 111.

The present application also discloses some embodiments, the first component device group further comprises a circuit breaker 113; when the first component group includes the reactor 111, the reactor 111 and the breaker 113 are arranged in order in a direction close to the second inner wall 152. Gas enters the first chamber 1 from the air inlet 13, flows through the reactor 111 and the breaker 113 in sequence, takes away heat of the reactor 111 and the breaker 113, and is discharged from the first air outlet 14, so that heat of the reactor and the breaker can be effectively dissipated.

The application also discloses some embodiments, the first chamber 1 further has a third inner wall 153, the air outlet 14 includes a second air outlet 14, the second air outlet 14 is disposed on the third inner wall 153, when the first component group includes the reactor 111, the air inlet 13 is located on one side of the reactor 111, and the third inner wall 153 is located on the other side of the reactor 111. The gas enters the first chamber 1 from the inlet 13, flows through the reactor 111, and then flows out from the second outlet 14 on the third interior, and can carry heat of the reactor 111. When the air outlets 14 include the first air outlet 14 and the second air outlet 14 at the same time, cold air enters from the air inlet 13 on the first inner portion, and meanwhile, a part of the hot air passes through the first copper sheet lap joint 115 and the reactor 111, and is discharged by the first air outlet 14 on the second side wall, and the other part of the hot air is discharged by the second air outlet 14 on the third side wall. Meanwhile, a first air guiding part 12 is arranged at each air outlet 14 for guiding the air in the first chamber 1 to be discharged; the first air guiding portion 12 at the first air outlet 14 is a first fan assembly 121, the first air guiding portion 12 at the second air outlet 14 is a second fan assembly 122, and both the first fan assembly 121 and the second fan assembly 122 include heat dissipation fans. The air inlet 13 is a rectangle, a hexagon or other regular quadrangles with the area of 3-5cm2 formed by arranging round holes with the diameter of 8-15mm, and a metal dust screen is welded or adhered at the bottom of the air inlet 13. The second fan assembly 122 is fixed on the sheet metal part by bolts and can be detached independently, and two groups of regular-hexagon air outlets 14 with the side length of 4-8mm and the area of 3-6cm2 are formed on the sheet metal part in an arrayed manner; the first fan assembly 121 is fixed on the top plate through bolts, and is covered on the second fan assembly 122 through the top cover 16, the side of the top cover 16 is provided with 10-30 unequal louvers, and the wind directions of the two fan assemblies are from inside to outside. The third inner wall 153 is an inner wall of one side plate of the first chamber 1.

The present application also discloses some embodiments, the first component device group further comprises a transformer 112; when the first component group includes the reactor 111, the transformer 112 is provided on the side of the reactor 111 close to the third inner wall 153. That is, the reactor 111 and the transformer 112 are arranged in the longitudinal direction of the case; the breaker 113 and the reactor 111 are vertically arranged in the height direction.

The application also discloses some embodiments, and the converter still includes cooling dehumidification chamber 3, and cooling dehumidification chamber 3 and second cavity 2 intercommunication have second wind guide portion 32 in cooling dehumidification chamber 3, and second wind guide portion 32 can guide gaseous interior circulation of carrying out in cooling dehumidification chamber 3 and second cavity 2. The second chamber 2 and the temperature-reducing dehumidifying chamber 3 form a closed space, namely, internal circulation heat dissipation is adopted.

The application also discloses some embodiments, the cooling and dehumidifying cavity 3 is provided with a first ventilation opening, and the first ventilation opening is communicated with the second cavity 2; still be provided with dehydrating unit 31 in the cooling dehumidification chamber 3, dehydrating unit 31's entry intercommunication second chamber 2, the gas in the second chamber 2 can get into dehydrating unit 31 through dehydrating unit 31's entry, flow into in the cooling dehumidification chamber 3 after dehumidifying, in the rethread first vent gets into second chamber 2. The frequency converter can be prevented from being used in a damp and hot environment, and the cooling medium of the dehumidifier 31 can be water, a refrigerant or other media. A first ventilation opening is formed in the side plate, which is connected with the second chamber 2, of the temperature-reducing dehumidification cavity 3, and the shape of the first ventilation opening is circular; the first vent is provided with an air guide part such as a fan, the fan is parallel to the positions of the two switching power supplies and is positioned on one side of the switching power supplies, and the fan is fixed at the first vent on the sheet metal part through bolts and is aligned with the center of the first vent; the dehumidifier 31 is mounted on the side plate and is provided with a rectangular ventilation opening, and the rectangular ventilation opening is communicated with the inlet of the dehumidifier 31 and the second chamber 2; the bottom of cooling dehumidification chamber 3 sets up water receiving portion 33, and the welding of water receiving portion 33 is in the bottom of cooling dehumidification chamber 3 to be located the outside of cooling dehumidification chamber 3, water receiving portion 33 includes external thread joint for the periphery of water receiving plate, water collector, can use with the exterior structure cooperation. The dehydrating unit 31 in this application can only have the dehumidification function, and it gets back to in the second chamber 2 after the steam that comes out dehumidifies in to the second chamber 2 after fan assembly dispels the heat again. The utility model provides a dehydrating unit 31 can be for the dehydrating unit 31 that has the cooling function, and it cools down the dehumidification back to the steam that comes out in second chamber 2, gets back to second chamber 2 after fan assembly dispels the heat once more again in, and the cooling effect is better. The shell of the cooling dehumidification chamber 3 is made of heat insulating materials, so that the cooling dehumidification chamber 3 can be prevented from exchanging heat with the outside, and the cooling dehumidification chamber 3 can be directly arranged inside the second chamber 2.

The application also discloses embodiments, wherein the second component group comprises a master control device 21 and/or a switching power supply. Two main control devices 21, a first switching power supply 22 and a second switching power supply 23 are arranged in the second cavity; the two main control devices 21 are arranged side by side in a direction close to the second chamber 2; the top of each main control device 21 is provided with a switch power supply; the first switching power supply 22 is used for supplying power to an external electrical appliance, and the second switching power supply 23 is used for supplying power to the two main control devices 21; the first switching power supply 22 may also be used to power one of the master control devices 21, and the second switching power supply 23 may be used to power the other master control device 21. The second component further comprises a second copper sheet structure 24 and a second copper sheet lap joint.

The application also discloses some embodiments, when the second component group comprises a switching power supply, the position of the switching power supply corresponds to the position of the first vent; when gas enters the second chamber 2 from the first ventilation opening, the temperature of the switching power supply can be reduced through the switching power supply.

The application also discloses some embodiments, when second component group includes master control unit 21, master control unit 21's position is corresponding with the position of dehydrating unit 31 entry, and gaseous after the switching power supply cooling, need get back to cooling dehumidification chamber 3 from dehydrating unit 31 entry, so this gas can flow through master control unit 21, further cool down master control unit 21, and switching power supply's heat dissipation capacity is not big, can not too high cause the influence to master control unit 21 to its gas temperature after the cooling. The second cavity and cooling dehumidification will form airtight space, and the second wind guide part 32 takes the cold air around the dehydrating unit 31 from supreme down through first vent out, through first switching power supply 22 and second switching power supply 23, simultaneously through second copper sheet overlap joint, through the cooling of rectangle window dehydrating unit 31, forms the circulation, and dehydrating unit 31 can form the condensation when the humidity is higher in the cabinet, through the casing of water receiving part 33 discharge.

According to an embodiment of the application, an air conditioner unit is provided, which comprises a frequency converter.

It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.

The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed. The foregoing is only a preferred embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present application, and these modifications and variations should also be considered as the protection scope of the present application.

Claims

1. A frequency converter, comprising:

a first chamber (1), wherein a first component device group is arranged in the first chamber (1);

a second chamber (2), a second component set is arranged in the second chamber (2); the first chamber (1) and the second chamber (2) are arranged in a mutually insulated manner; the frequency converter further comprises a first heat dissipation structure and a second heat dissipation structure, wherein the first heat dissipation structure is used for dissipating heat of the first cavity (1); the second heat dissipation structure is used for dissipating heat of the second chamber (2); the first heat dissipation structure is an external circulation heat dissipation structure; and/or the second heat dissipation structure is an internal circulation heat dissipation structure.

2. The frequency converter according to claim 1, characterized in that said first heat dissipating structure comprises a first air guiding portion (12); the first chamber (1) is provided with an air inlet (13) and an air outlet (14); the first air guide part (12) is used for guiding air to enter the first chamber (1) from the air inlet (13), flow through the first component group and flow out from the air outlet (14).

3. Frequency converter according to claim 2, characterized in that the first chamber (1) has a first inner wall (151), the air inlet (13) being arranged in the first inner wall (151); the first chamber (1) is further provided with a second inner wall (152) opposite to the first inner wall (151), the air outlet (14) comprises a first air outlet (14), and the first air outlet (14) is arranged on the second inner wall (152).

4. Frequency converter according to claim 3, characterized in that the first set of components comprises a reactor (111);

and/or the first component group further comprises a wire-incoming copper sheet structure (114).

5. Frequency converter according to claim 4, characterized in that said first chamber (1) further has a third inner wall (153), said outlet (14) comprising a second outlet (14), said second outlet (14) being arranged on said third inner wall (153); when the first component group comprises a reactor (111), the air inlet (13) is positioned on one side of the reactor (111), and the third inner wall (153) is positioned on the other side of the reactor (111).

6. The frequency converter according to claim 5, wherein the first component group further comprises a transformer (112); when the first component group comprises a reactor (111), the transformer (112) is arranged on one side of the reactor (111) close to the third inner wall (153);

and/or the first component group further comprises a circuit breaker (113); when the first component group includes a reactor (111), the reactor (111) and the breaker (113) are arranged in this order in a direction approaching the second inner wall (152).

7. The frequency converter according to claim 1, further comprising a cooling and dehumidifying cavity (3), wherein the cooling and dehumidifying cavity (3) is communicated with the second chamber (2), a second air guiding portion (32) is arranged in the cooling and dehumidifying cavity (3), and the second air guiding portion (32) can guide air to circulate in the cooling and dehumidifying cavity (3) and the second chamber (2) in an internal circulation manner.

8. The frequency converter according to claim 7, characterized in that said cooling and dehumidifying chamber (3) has a first ventilation opening communicating with said second chamber (2); still be provided with dehydrating unit (31) in cooling dehumidification chamber (3), the entry intercommunication of dehydrating unit (31) second cavity (2), gas in second cavity (2) can pass through the entry of dehydrating unit (31) gets into dehydrating unit (31) flows into after the dehumidification cooling is cooled down in dehumidification chamber (3), the rethread first vent gets into in the second cavity (2).

9. Frequency converter according to claim 8, characterized in that the second set of components comprises a master control device (21) and/or a switching power supply.

10. The frequency converter according to claim 9, wherein when the second component comprises a switching power supply, a position of the switching power supply corresponds to a position of the first vent;

and/or, when the second component comprises a master control device (21), the position of the master control device (21) corresponds to the position of the inlet of the dehumidification device (31).

11. Air conditioning assembly comprising an inverter, characterized in that the inverter is according to any of claims 1-10.