Static var generator with good heat dissipation effect

Abstract

The utility model discloses a static var generator with good heat dissipation effect, including cabinet, static var generator and heat abstractor, the cabinet includes bottom shell and the face cover of setting up on bottom shell, and the bottom shell and face cover form the containing space with the surrounding structure, is provided with the installation site of intercommunication in containing space on bottom shell, is equipped with the partition in containing space, and the partition divides the accommodation cavity into left side accommodation cavity and right side accommodation cavity, static var generator is installed in containing space, heat abstractor at least includes first radiating fan subassembly, second radiating fan subassembly and radiating fin, first radiating fan subassembly, second radiating fan subassembly set up in left side accommodation cavity and right side accommodation cavity respectively, and the radiating fin is installed in the installation site, and thus, utilize heat abstractor to form the heat dissipation to static var generator directly, owing to the installation site intercommunication in the chamber, make its heat can be scattered by the radiating fin, reduce the heat in containing space.

Description

Technical Field

[0001] This utility model relates to the field of static var generators, and in particular to a static var generator with good heat dissipation. Background Technology

[0002] Static Var Generators (SVG) operate by injecting a compensation current equal in magnitude but opposite in direction to the actual reactive current. Their principle and control method are completely different from SVCs. Instead of using conventional capacitors and reactors, they connect a self-commutated bridge circuit to the power grid via reactors or directly in parallel. In other words, the ASVG is treated as a three-phase voltage source inverter connected to a three-phase transmission line. By appropriately controlling the output voltage of the three-phase voltage source inverter, it exchanges reactive power (inductive or capacitive) with the system to meet the required levels, ultimately achieving reactive power compensation.

[0003] Static var generators (SVG) play a crucial role in flexible AC transmission systems and are one of the main controllable devices in the power system. They not only regulate reactive power but also improve power system stability. They can provide rapid voltage and reactive power control at grid connection points, protecting the grid from grid pollution such as harmonics, voltage flicker, and voltage asymmetry, thereby improving power supply quality. They can also improve the power factor of lines and reduce line losses. However, SVG generates a significant amount of heat during operation, and air cooling alone is insufficient, affecting the normal operation of the SVG and creating safety hazards.

[0004] Later, a water-cooled static var generator (SVR) appeared on the market. It includes a PCB board, an IGBG module soldered on the PCB board, and a water-cooled radiator located on the back of the PCB board. The SVR has high reliability after introducing water cooling. However, the coolant leakage is one of the main risks of this bottom-mounted water cooling method. Leakage can be caused by improper installation, external impact, etc. Once the coolant leaks, it may corrode the internal circuit of the SVG module, the PCB board, or peripheral equipment, causing serious failures such as short circuits and component damage. Secondly, the water cooling system includes multiple components such as water pump, pipes, heat exchanger, and coolant. Careful layout is required during installation, and subsequent maintenance requires checking the water circuit sealing, water pump operation status, coolant level and purity, etc.

[0005] Therefore, a new technical solution needs to be researched to address the above problems. Utility Model Content

[0006] In view of this, the present invention addresses the deficiencies of the existing technology, and its main objective is to provide a static var generator with good heat dissipation. Through the design of a cabinet, a var generator, and a heat dissipation device, the bottom shell and the top cover form an accommodating space. A partition is installed within the accommodating space, dividing the accommodating cavity into a left accommodating cavity and a right accommodating cavity. The var generator is installed and positioned within the accommodating space. Thus, the heat dissipation device directly dissipates heat from the var generator. Since the mounting position is connected to the cavity, its heat can be dissipated through the heat sink, reducing the heat within the accommodating space. Compared to traditional water-cooled heat dissipation, its structure is simple and maintenance is convenient.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A static var generator with good heat dissipation includes a cabinet, a var generator, and a heat dissipation device.

[0009] The cabinet includes a bottom shell and a top cover on the bottom shell; the bottom shell and the top cover form an accommodating space, and mounting positions communicating with the accommodating space are provided on the upper, lower, left, and right end faces of the bottom shell; a partition is installed in the accommodating space, and the partition divides the accommodating cavity into a left accommodating cavity and a right accommodating cavity; several through holes are provided on the partition; the through holes are respectively connected to the accommodating space; wherein, the reactive power generator is installed and positioned in the accommodating space; the heat dissipation device includes at least a first cooling fan assembly, a second cooling fan assembly, and a heat sink; the first cooling fan assembly and the second cooling fan assembly are respectively disposed in the left accommodating cavity and the right accommodating cavity, and the air outlets of the first cooling fan assembly and the second cooling fan assembly are both oriented towards the partition; the heat sink is installed and positioned at the mounting position.

[0010] As a preferred embodiment, the reactive power generator includes a PCB board, several power modules, and a control module. The power modules are pluggable to the PCB board, and the control module is electrically connected to the PCB board.

[0011] As a preferred solution, a first thermally conductive silicone pad is bonded between several power modules. The thermally conductive double-sided adhesive can quickly conduct away the heat generated by the power modules during operation, reduce the module temperature, and prevent performance degradation or damage due to overheating. Secondly, it can prevent electrical short circuits between power modules and ensure the safe and stable operation of the circuit.

[0012] As a preferred embodiment, the heat sink includes a substrate and a plurality of heat dissipation grilles spaced on the substrate, with a first heat dissipation opening provided between adjacent heat dissipation grilles.

[0013] As a preferred embodiment, the bottom shell includes an upper side plate, a lower side plate, a left side plate, and a right side plate that are connected to each other. Each of the upper side plate, lower side plate, left side plate, and right side plate has a mounting position that communicates with the accommodating space, and a heat sink is installed at each mounting position.

[0014] As a preferred embodiment, the heat sink is secured to the corresponding mounting position with screws.

[0015] As a preferred embodiment, the first cooling fan assembly and the second cooling fan assembly include a mounting base and a cooling fan disposed on the mounting base. The mounting base has a second heat dissipation port for communicating with the first heat dissipation port. The mounting base is bonded and fixed to the heat sink on the upper and lower side panels by a second thermally conductive silicone pad. The thermally conductive silicone pad enables the rapid transfer of heat from the accommodating space to the outside, reducing the temperature inside the accommodating space. The heat is then transferred to the outside of the cabinet by the heat sink. The setting of the heat dissipation port accelerates the heat dissipation effect of the heat sink, thereby significantly improving the heat dissipation efficiency of the equipment.

[0016] Compared with the prior art, this utility model has significant advantages and beneficial effects. Specifically, as can be seen from the above technical solution, it mainly involves the design of a cabinet, a reactive power generator, and a heat dissipation device. The bottom shell and the top cover form an accommodating space, and a partition is installed in the accommodating space to divide the accommodating cavity into a left accommodating cavity and a right accommodating cavity. The reactive power generator is installed and positioned within the accommodating space. The heat dissipation device includes at least a first cooling fan assembly, a second cooling fan assembly, and a heat sink. The first cooling fan assembly and the second cooling fan assembly are respectively disposed in the left accommodating cavity and the right accommodating cavity, and the heat sink is installed and positioned at the mounting position. In this way, the first cooling fan assembly and the second cooling fan assembly directly dissipate heat from the reactive power generator. Since the mounting position is connected to the cavity, the heat can be dissipated by the heat sink to reduce the heat in the accommodating space.

[0017] Secondly, there is the cooling method consisting of a cooling fan and a heat sink, which is simpler in structure and easier to maintain than traditional water cooling.

[0018] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0019] Figure 1 This is a front view of an embodiment of the present utility model (the cover is not shown);

[0020] Figure 2 This is a perspective view of an embodiment of the present utility model;

[0021] Figure 3This is an exploded view of a reactive power generator according to an embodiment of this utility model;

[0022] Figure 4 This is a front view of an embodiment of the present utility model (the cover and reactive power generator are not shown);

[0023] Figure 5 This is a top view of an embodiment of the present invention (heat sink not shown).

[0024] Explanation of reference numerals in the attached diagram:

[0025] 10. Cabinet body 11. Bottom shell

[0026] 111. Upper side panel; 112. Lower side panel

[0027] 113. Left side panel 114. Right side panel

[0028] 12. Cover 13. Storage space

[0029] 14. Divider 141. Left side receiving cavity

[0030] 142. Right side receiving cavity; 15. Installation position.

[0031] 20. Reactive power generator 21. PCB board

[0032] 22. Power Module 23. Control Module

[0033] 24. First thermally conductive silicone pad

[0034] 30. Heat dissipation device; 31. First cooling fan assembly

[0035] 32. Second cooling fan assembly; 33. Heat sink.

[0036] 311. Mounting bracket; 312. Cooling fan

[0037] 34. Second thermally conductive silicone pad

[0038] 331, substrate; 332, heat dissipation grille

[0039] 333. First heat dissipation vent. Detailed Implementation

[0040] Please refer to Figures 1 to 5 As shown, it illustrates the specific structure of an embodiment of the present invention.

[0041] In the description of this utility model, it should be noted that the directional terms such as "up", "down", "front", "back", "left", and "right" indicate the orientation and positional relationship based on the accompanying drawings or the orientation or positional relationship shown when wearing and using the device normally. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this utility model.

[0042] A static var generator with good heat dissipation includes a cabinet 10, a var generator 20, and a heat dissipation device 30.

[0043] The cabinet 10 includes a bottom shell 11 and a top cover 12 covering the bottom shell 11; the bottom shell 11 and the top cover 12 form an accommodating space 13, and mounting positions 15 communicating with the accommodating space 13 are provided on the upper, lower, left, and right end faces of the bottom shell 11; a partition 14 is installed in the accommodating space 13, and the partition 14 divides the accommodating cavity into a left accommodating cavity 141 and a right accommodating cavity 142; a plurality of through holes are provided on the partition 14; the through holes are respectively connected to the accommodating space 13.

[0044] Preferably, the bottom shell 11 includes an upper side plate 111, a lower side plate 112, a left side plate 113, and a right side plate 114 that are connected to each other. Each of the upper side plate 111, the lower side plate 112, the left side plate 113, and the right side plate 114 has a mounting position 15 that communicates with the accommodating space 13. A heat sink 33 is installed at each mounting position 15.

[0045] The reactive power generator 20 is installed and positioned within the accommodating space 13; preferably, the reactive power generator 20 includes a PCB board 21, several power modules 22 and a control module 23, the several power modules 22 are plugged into and plugged into the PCB board 21, and the control module 23 is electrically connected to the PCB board 21.

[0046] Preferably, a first thermally conductive silicone pad 24 is bonded between several power modules 22. The thermally conductive double-sided adhesive can quickly conduct away the heat generated by the power modules 22 during operation, reduce the module temperature, and avoid performance degradation or damage due to overheating. Secondly, it can prevent electrical short circuits between power modules 22 and ensure safe and stable operation of the circuit.

[0047] The heat dissipation device 30 includes at least a first cooling fan assembly 31, a second cooling fan assembly 32, and a heat sink 33; the first cooling fan assembly 31 and the second cooling fan assembly 32 are respectively disposed in the left receiving cavity 141 and the right receiving cavity 142, and the air outlets of the first cooling fan assembly 31 and the second cooling fan assembly 32 are both oriented towards the partition 14; the heat sink 33 is installed and positioned at the mounting position 15.

[0048] Preferably, the first cooling fan assembly 31 and the second cooling fan assembly 32 include a mounting base 311 and a cooling fan 312 disposed on the mounting base 311. The mounting base 311 has a second heat dissipation port for communicating with the first heat dissipation port 333. The mounting base 311 is bonded and fixed to the heat sink 33 on the upper side plate 111 and the lower side plate 112 by a second thermally conductive silicone pad 34. The thermally conductive silicone pad enables the heat in the accommodating space 13 to be quickly transferred to the outside, reducing the temperature inside the accommodating space 13. Then, the heat sink 33 transfers the heat to the outside of the cabinet 10. The setting of the heat dissipation port accelerates the heat dissipation effect of the heat sink 33, thereby greatly improving the heat dissipation efficiency of the equipment.

[0049] Preferably, the heat sink 33 includes a substrate 331 and a plurality of heat dissipation grilles 332 spaced apart on the substrate 331, with a first heat dissipation opening 333 provided between adjacent heat dissipation grilles 332. Preferably, the heat sink 33 is secured to the corresponding mounting position 15 by screws.

[0050] The key design feature of this utility model lies in its design of a cabinet, a reactive power generator, and a heat dissipation device. The bottom shell and the top cover form an accommodating space, which is divided into a left accommodating cavity and a right accommodating cavity by a partition. The reactive power generator is installed and positioned within the accommodating space. The heat dissipation device includes at least a first cooling fan assembly, a second cooling fan assembly, and a heat sink. The first and second cooling fan assemblies are respectively disposed in the left and right accommodating cavities, and the heat sink is installed and positioned at the mounting position. In this way, the first and second cooling fan assemblies directly dissipate heat from the reactive power generator. Since the mounting position is connected to the cavity, the heat can be dissipated by the heat sink, thereby reducing the heat within the accommodating space.

[0051] Secondly, there is the cooling method consisting of a cooling fan and a heat sink, which is simpler in structure and easier to maintain than traditional water cooling.

[0052] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A static var generator with good heat dissipation, characterized in that: It includes a cabinet, a reactive power generator, and a heat dissipation device; The cabinet includes a bottom shell and a top cover on the bottom shell; the bottom shell and the top cover form an accommodating space, and mounting positions communicating with the accommodating space are provided on the upper, lower, left, and right end faces of the bottom shell; a partition is installed in the accommodating space, and the partition divides the accommodating cavity into a left accommodating cavity and a right accommodating cavity; several through holes are provided on the partition; the through holes are respectively connected to the accommodating space; wherein, the reactive power generator is installed and positioned in the accommodating space; the heat dissipation device includes at least a first cooling fan assembly, a second cooling fan assembly, and a heat sink; the first cooling fan assembly and the second cooling fan assembly are respectively disposed in the left accommodating cavity and the right accommodating cavity, and the air outlets of the first cooling fan assembly and the second cooling fan assembly are both oriented towards the partition; the heat sink is installed and positioned at the mounting position.

2. The static var generator with good heat dissipation effect according to claim 1, characterized in that: The reactive power generator includes a PCB board, several power modules and a control module. The power modules are pluggable to the PCB board, and the control module is electrically connected to the PCB board.

3. The static var generator with good heat dissipation effect according to claim 2, characterized in that: A first thermally conductive silicone pad is bonded between several power modules.

4. The static var generator with good heat dissipation effect according to claim 1, characterized in that: The heat sink includes a substrate and a plurality of heat dissipation grilles spaced on the substrate, with a first heat dissipation opening between adjacent heat dissipation grilles.

5. The static var generator with good heat dissipation effect according to claim 4, characterized in that: The bottom shell includes an upper side plate, a lower side plate, a left side plate, and a right side plate that are connected to each other. Each of the upper side plate, lower side plate, left side plate, and right side plate has a mounting position that communicates with the accommodating space, and a heat sink is installed at each mounting position.

6. The static var generator with good heat dissipation according to claim 5, characterized in that: The heat sink is secured to the corresponding mounting position with screws.

7. The static var generator with good heat dissipation effect according to claim 5, characterized in that: The first cooling fan assembly and the second cooling fan assembly each include a mounting base and a cooling fan disposed on the mounting base. The mounting base has a second heat dissipation port for communicating with the first heat dissipation port. The mounting base is bonded and fixed to the heat sinks on the upper and lower side plates by a second thermally conductive silicone pad.

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