CN217656551U - Highly integrated compact frequency conversion system device - Google Patents

Abstract

The utility model discloses a high integrated compact frequency conversion system device relates to high-pressure frequency conversion equipment technical field, can be when guaranteeing the radiating efficiency, with the cooling system integration in the device. The power supply cabinet comprises a cabinet body, wherein the cabinet body comprises a first cavity, a second cavity and a water source cooling cavity, the first cavity is provided with a power unit, the second cavity is provided with a phase-shifting transformer, the water source cooling cavity is matched with the first cavity, the second cavity and the water source cooling cavity to form a heat dissipation air duct, and a fan is arranged in the heat dissipation air duct and used for driving wind power to sequentially and circularly flow along the first cavity, the second cavity and the water source cooling cavity; and a water source cooling unit capable of circulating cooling water is arranged in the water source cooling chamber, and comprises a heat exchanger for cooling wind power. The utility model discloses a make first cavity, second cavity and the cooperation of water source cooling cavity form the heat dissipation wind channel, this entire system efficiency is higher, and the cost is lower, and area is littleer.

Description

Highly integrated compact frequency conversion system device

Technical Field

The utility model relates to a high-pressure frequency conversion equipment technical field, concretely relates to highly integrated compact variable frequency system device.

Background

The existing inverter system devices generally include a control unit, a power unit and a phase-shifting transformer, and in addition, in order to further reduce the risk of the system and optimize the occupied area, a high-voltage bypass is sometimes integrated. In the existing frequency conversion system device, an air-water cooling device is generally adopted to cool and radiate the frequency conversion system device, wherein the air-water cooling device and the frequency conversion system device are relatively independent, the air-water cooling device and the frequency conversion system device are connected through an air duct or a partition plate, the required occupied area is large, and the heat radiation efficiency is relatively low.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: provided is a variable frequency system device capable of integrating a heat dissipation system into the device while securing heat dissipation efficiency.

The utility model discloses a following technical scheme realizes:

a highly integrated compact frequency conversion system device comprises a cabinet body, wherein the cabinet body comprises a first cavity, a second cavity and a water source cooling cavity, the first cavity is used for accommodating a power unit, the second cavity is used for accommodating a phase-shifting transformer, the first cavity, the second cavity and the water source cooling cavity are matched to form a heat dissipation air duct, a fan is arranged in the heat dissipation air duct, and the fan is used for driving wind power to sequentially and circularly flow along the first cavity, the second cavity and the water source cooling cavity;

and a water source cooling unit capable of circulating cooling water is arranged in the water source cooling chamber, and comprises a heat exchanger for cooling wind power.

Optionally, the water source cooling unit further includes a compressor, the compressor is communicated with the heat exchanger through a circulation water path, the compressor is further communicated with a cooling water input interface, and the heat exchanger is further communicated with a cooling water output interface.

Further optionally, the cooling water input interface and the cooling water output interface are disposed outside the cabinet body.

Optionally, the first chamber and the second chamber are horizontally arranged on the same side of the water source cooling chamber side by side, a partition plate is arranged between the second chamber and the water source cooling chamber, and components through which cooling water flows in the water source cooling unit are intensively arranged beside the partition plate.

Further optionally, an air path circulation channel is arranged above the second cavity and the water source cooling cavity, and two ends of the air path circulation channel are respectively communicated with the upper sides of the second cavity and the water source cooling cavity.

Further optionally, a drain hole is formed in the lower side of the water source cooling cavity.

Optionally, the fan is disposed in the air path circulation passage.

Optionally, the cabinet body further includes a third chamber for placing the control unit and the high-pressure bypass, the third chamber is located on one side of the first chamber and the second chamber away from the water source cooling chamber, and a partition plate is arranged between the third chamber and the first chamber and the second chamber.

Optionally, the cabinet body includes cabinet doors covering the first chamber, the second chamber and the water source cooling chamber, the cabinet doors are of a complete plate-shaped structure, and when all the cabinet doors are closed, the first chamber, the second chamber and the water source cooling chamber are relatively sealed.

Optionally, the heat exchanger is a tubular heat exchanger.

The utility model discloses have following advantage and beneficial effect:

1. the utility model provides a pair of highly integrated compact system device that changes frequency, through making first cavity, second cavity and the cooperation of water source cooling cavity form the heat dissipation wind channel, and form in proper order at first cavity, the second cavity through the fan, the wind-force that water source cooling cavity flows, and cool off wind-force in real time through the heat exchanger, can form one set in the device and can carry out refrigerated inner loop sealing system to power unit, phase-shifting transformer, its IP grade is higher, equipment receives the influence of environment lower. Compared with the traditional cooling mode through the air-water cooling air channel, the cooling system has the advantages that the cooling volume is smaller, the cooling path is shorter, the efficiency of the whole system is higher, the cost is lower, and the occupied area is smaller.

In addition, the power unit and the phase-shifting transformer in the cabinet body can be cooled more pertinently by enabling wind power to sequentially flow through the first cavity and the second cavity, and the heat dissipation quality is improved.

2. The utility model provides a highly integrated compact type frequency conversion system device, which enables the structure of the whole cabinet body to be more compact and the utilization rate of space to be higher through the arrangement of each chamber of the cabinet body, thereby greatly reducing the volume of the cabinet body; and meanwhile, the water source cooling unit is separated, so that the cooling water cannot flow into the first cavity and the second cavity when leaking, and the use of the power unit and the phase-shifting transformer is influenced.

Drawings

Fig. 1 is an overall schematic view of embodiment 1 of the present invention;

fig. 2 is an overall back view of embodiment 1 of the present invention;

fig. 3 is an internal schematic view of embodiment 1 of the present invention;

fig. 4 is an internal front view of embodiment 1 of the present invention;

fig. 5 is an internal left side view of embodiment 1 of the present invention;

fig. 6 is an internal right side view of embodiment 1 of the present invention;

fig. 7 is an internal back view of embodiment 1 of the present invention;

fig. 8 is an internal top view of embodiment 1 of the present invention;

fig. 9 is an internal bottom view of embodiment 1 of the present invention;

fig. 10 is a schematic view of the forward wind flow in embodiment 1 of the present invention;

fig. 11 is a schematic view of the downward wind flow in embodiment 1 of the present invention.

Reference numbers and corresponding part names in the drawings:

the system comprises a 1-power unit, a 2-phase-shifting transformer, a 3-control unit, a 4-high-pressure bypass, a 5-water source cooling unit, a 51-cooling water input interface, a 52-compressor, a 53-circulating water path, a 54-heat exchanger, a 55-cooling water output interface, a 6-air path circulating channel, a 61-fan and a 7-cabinet door.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to those of ordinary skill in the art that: it is not necessary to employ these specific details to practice the invention. In other instances, well-known structures, circuits, materials, or methods have not been described in detail so as not to obscure the present invention.

Throughout the specification, reference to "one embodiment," "an embodiment," "one example," or "an example" means: the particular features, structures, or characteristics described in connection with the embodiment or example are included in at least one embodiment of the present invention. Thus, the appearances of the phrase "one embodiment," "an embodiment," "one example" or "an example" in various places throughout this specification are not necessarily all referring to the same embodiment or example. Furthermore, the particular features, structures, or characteristics may be combined in any suitable combination and/or sub-combination in one or more embodiments or examples. Further, those of ordinary skill in the art will appreciate that the illustrations provided herein are for illustrative purposes and are not necessarily drawn to scale. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

In the description of the present invention, the terms "front", "rear", "left", "right", "upper", "lower", "vertical", "horizontal", "high", "low", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the scope of the present invention.

Example 1:

a highly integrated compact type frequency conversion system device is shown in figures 3 to 9 and comprises a cabinet body, wherein the cabinet body comprises a first cavity, a second cavity and a water source cooling cavity, the first cavity is provided with a power unit 1, the second cavity is provided with a phase-shifting transformer 2, the first cavity, the second cavity and the water source cooling cavity are matched to form a heat dissipation air duct, a fan 61 is arranged in the heat dissipation air duct, and the fan 61 is used for driving wind power to sequentially and circularly flow along the first cavity, the second cavity and the water source cooling cavity;

the water source cooling chamber is provided with a water source cooling unit 5 capable of circulating cooling water, and the water source cooling unit 5 comprises a heat exchanger 54 for cooling wind power.

The first chamber, the second chamber and the water source cooling chamber are integrally sealed relatively, and wind power which flows in the first chamber, the second chamber and the water source cooling chamber in sequence is formed among the chambers under the driving of the fan 61. At this time, the wind power transfers heat with the cooling water flowing in the heat exchanger 54 when flowing through the water source cooling chamber, thereby forming cold wind with a lower temperature. In the frequency conversion system device, the requirement of the power unit 1 on heat dissipation is higher than that of the phase-shifting transformer 2, so that cold air preferentially passes through the first chamber to cool and dissipate the heat of the power unit 1, then flows into the second chamber to cool and dissipate the heat of the phase-shifting transformer 2, and then hot air heated by the power unit 1 and the phase-shifting transformer 2 flows through the water source cooling chamber again to transfer heat with cooling water flowing in the heat exchanger 54. And the heated cooling water is discharged out of the cabinet body through the water source cooling unit 5.

Through the mode, a set of internal circulation sealed system can be formed for the cooling mechanism of the power unit 1 and the phase-shifting transformer 2 in the cabinet body, the IP grade is higher, and the influence of the environment on equipment is lower. Compared with the traditional cooling mode through the air-water cooling air channel, the cooling capacity is smaller, the cooling path is shorter (the air-water cooling air channel is usually very long and is generally between several meters and dozens of meters), and therefore the whole system is higher in efficiency and lower in cost.

In addition, the power unit 1 and the phase-shifting transformer 2 in the cabinet body can be cooled in a more targeted manner by enabling wind power to sequentially flow through the first cavity and the second cavity, and the heat dissipation quality is improved.

For the water source cooling unit 5, in one or more embodiments, the water source cooling unit 5 further includes a compressor 52, the compressor 52 is communicated with the heat exchanger 54 through a circulation water path 53, the compressor 52 is further communicated with a cooling water input interface 51, and the heat exchanger 54 is further communicated with a cooling water output interface 55.

The cooling water is connected with the water pipe through the cooling water inlet interface, and the cooling water is input into the compressor 52 from the water pipe, is conveyed into the heat exchanger 54 through the compressor 52, and is output from the cooling water outlet interface 55 after heat transfer with wind power.

The water source cooling unit 5 adopts redundancy configuration of a plurality of N +1 compressors 52, and when a certain compressor 52 has a problem, the unit can still run at full power; each compressor 52 is operated intermittently and alternately to ensure that the compressors 52 can be put into operation at any time.

Wherein, the cooling water input interface 51 and the cooling water output interface 55 are arranged outside the cabinet body. The water leakage or splashing can be avoided when the electric water pipe is connected, and the cooling water can not enter the cabinet body. Specifically, the cooling water input interface 51 and the cooling water output interface 55 can be arranged at the bottom of the back or the side of the water source cooling chamber, so that the whole device is prevented from being covered by cooling water in a large range when leakage occurs.

The water source cooling chamber, the first chamber and the second chamber can be sequentially arranged along the same direction, the second chamber is communicated with the water source cooling chamber through an air duct, and the length of the whole device is long and the whole device is not easy to place under the structure.

The first chamber and the second chamber are arranged on the same side of the water source cooling chamber side by side, so that the lengths of the first chamber, the second chamber and the water source cooling chamber are reduced, and the water source cooling chamber is convenient to place. Meanwhile, in order to avoid the leakage of cooling water in the water source cooling unit 5 and the influence on the use of the power unit 1 and the phase-shifting transformer 2 when the cooling water flows into the first chamber or the second chamber, a partition plate is arranged between the second chamber and the water source cooling chamber and used for avoiding the cooling water from flowing into the second chamber, and meanwhile, components through which the cooling water flows in the water source cooling unit 5 are intensively arranged beside the partition plate, so that the first chamber is positioned on one side of the part, without the cooling water, in the water source cooling chamber.

At this time, since the second chamber and the water source cooling chamber are partitioned by a partition, in order to communicate the second chamber with the water source cooling chamber, in one or more embodiments, an air path circulation passage 6 is provided above the second chamber and the water source cooling chamber, and both ends of the air path circulation passage 6 communicate with the second chamber and an upper side of the water source cooling chamber, respectively.

At this moment, the second cavity and the water source cooling cavity are communicated through the air path circulating channel 6, wherein the air path circulating channel 6 is communicated with the upper side of the second cavity, the heated hot air can be received more smoothly, the hot air is blown into the water source cooling cavity downwards after being recorded in the circulating channel, and downward force can be applied to leaked cooling water at the moment, so that the leaked cooling water falls to the ground and is prevented from entering the first cavity.

In this case, the circulation flow sequence of the wind power is: the first chamber, the second chamber, the air path circulation passage 6, the water source cooling chamber, the first chamber \8230; \8230, and the forward and downward views of the wind force are shown in fig. 10 to 11.

Wherein, a drain hole (not shown in the figure) is arranged at the lower side of the water source cooling chamber.

Therefore, leaked cooling liquid can be conveniently discharged out of the water source cooling chamber, and the phenomenon that the humidity of the cooling liquid accumulated in the water source cooling chamber increases wind power influences normal operation of each device is avoided.

It should be noted that the size of the drain hole is small, which will not cause the exchange of a large amount of air between the outside air and the inside of the heat dissipation air duct, thereby avoiding the influence on the cooling mechanism of the whole cabinet.

Because the air path circulating channel 6 is positioned above the second chamber and the water source cooling chamber, the occupied area of the whole device is not increased. Therefore, in one or more embodiments, by providing the fan 61 in the air path circulation passage 6, the space required for providing the fan 61 can be reduced. In addition, since the coverage of the power unit 1 and the phase-shifting transformer 2 in the inverter system device is generally large, it is necessary to disperse the wind force to ensure the heat dissipation better, and in this case, it is preferable to locate the fan 61 above the second chamber, and the wind force from the fan 61 is relatively dispersed by being guided by the bent wind path circulation channel 6.

In one or more embodiments, the cabinet further comprises a third chamber for placing the control unit 3 and the high-pressure bypass 4, the third chamber is positioned on one side of the first chamber and the second chamber away from the water source cooling chamber, and a partition plate is arranged between the third chamber and the first chamber and the second chamber.

In the frequency conversion system device, generally, a control unit 3 and a high-voltage bypass 4 are provided, and an operator needs to operate the entire frequency conversion system device through the control unit 3, so in order to facilitate operation, the control unit 3 needs to be frequently opened, and therefore cannot be incorporated into a heat dissipation air duct, and in addition, the control unit 3 and the high-voltage bypass 4 do not require heat dissipation, so that the control unit 3 and the high-voltage bypass 4 are disposed on the sides of the first chamber and the second chamber away from the water source cooling chamber, so that connection between the control unit 3 and the high-voltage bypass 4 and the power unit 1 and the phase-shifting transformer 2 is facilitated, and the third chamber is separated from the first chamber and the second chamber by a partition plate.

In this case, it should be noted that the partition is mainly used to prevent a large amount of wind from flowing into the third chamber from the first chamber and the second chamber, and it is not necessary to completely seal the third chamber, and a small hole for the line to pass through may be formed in the partition.

It should be noted that the control unit 3, the high-voltage bypass 4, the power unit 1 and the phase-shifting transformer 2 are all conventional modules or accessories of the frequency conversion system, and the connection manner and the functions thereof are known to those skilled in the art.

In the existing frequency conversion system device, in order to improve the heat dissipation efficiency, a vent is generally formed in the cabinet door 7 or the cabinet body, but in the present application, as shown in fig. 1 to fig. 2, in order to reduce the influence of the external environment, the cabinet door 7 is set to be a complete plate-shaped structure, and when all the cabinet doors 7 are closed, the first cavity, the second cavity and the water source cooling cavity are relatively sealed.

The cabinet door 7 is of a complete plate-shaped structure, namely, no opening capable of ventilating is formed in the cabinet door, when the cabinet door 7 is opened, the power unit 1, the phase-shifting transformer 2 or the water source cooling unit 5 exposed outside can be maintained, and when the cabinet door 7 is closed, the contact between outside air and the heat dissipation air duct can be isolated, so that the cooling mechanism of the whole cabinet body is prevented from being influenced.

In one or more embodiments, the heat exchanger 54 is a tube heat exchanger 54.

Therefore, the flow path of the cooling water is increased, the cooling water can be in contact with wind power more fully to cool the cooling water, and the cooling efficiency is improved.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (10)

1. The highly-integrated compact type frequency conversion system device is characterized by comprising a cabinet body, wherein the cabinet body comprises a first cavity, a second cavity and a water source cooling cavity, the first cavity is provided with a power unit (1), the second cavity is provided with a phase-shifting transformer (2), the first cavity, the second cavity and the water source cooling cavity are matched to form a heat dissipation air duct, a fan (61) is arranged in the heat dissipation air duct, and the fan (61) is used for driving wind power to sequentially and circularly flow along the first cavity, the second cavity and the water source cooling cavity;

a water source cooling unit (5) capable of circulating cooling water is arranged in the water source cooling chamber, and the water source cooling unit (5) comprises a heat exchanger (54) for cooling wind power.

2. The highly-integrated compact variable frequency system device according to claim 1, wherein the water source cooling unit (5) further comprises a compressor (52), the compressor (52) is communicated with the heat exchanger (54) through a circulating water path (53), the compressor (52) is further communicated with a cooling water input interface (51), and the heat exchanger (54) is further communicated with a cooling water output interface (55).

3. A highly integrated compact frequency conversion system arrangement according to claim 2, characterized in that said cooling water input interface (51) and cooling water output interface (55) are arranged outside said cabinet body.

4. The highly integrated compact inverter system device of claim 1, wherein the first chamber and the second chamber are horizontally arranged side by side on the same side of the water source cooling chamber, a partition is arranged between the second chamber and the water source cooling chamber, and the components of the water source cooling unit (5) through which cooling water flows are intensively arranged beside the partition.

5. The highly integrated compact inverter system device according to claim 4, wherein the second chamber and the water source cooling chamber are provided with an air path circulation channel (6) above, and both ends of the air path circulation channel (6) are respectively communicated with the upper sides of the second chamber and the water source cooling chamber.

6. The apparatus of claim 5, wherein the water source cooling chamber has drain holes at the lower side.

7. A highly integrated compact inverter system arrangement according to claim 5, characterized in that the fan (61) is arranged in the air path circulation channel (6).

8. The highly integrated compact inverter system device according to claim 4, wherein the cabinet further comprises a third chamber for placing the control unit (3) and the high-pressure bypass (4), the third chamber is located at the side of the first and second chambers away from the water source cooling chamber, and a partition is provided between the third chamber and the first and second chambers.

9. A highly integrated compact variable frequency system device according to claim 1, wherein said cabinet body comprises cabinet doors (7) covering the outside of said first, second and water source cooling chambers, said cabinet doors (7) having a full plate-like structure, said first, second and water source cooling chambers being relatively sealed when all cabinet doors (7) are closed.

10. A highly integrated compact variable frequency system device according to claim 1, wherein the heat exchanger (54) is a tube heat exchanger.

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