Detection device for power unit of high-voltage frequency converter

Abstract

The utility model discloses a detection device for a power unit of a high-voltage frequency converter, and relates to the technical field of frequency converter testing, and the detection device comprises a cabinet structure which is divided into a front part and a rear part through a partition plate, the front part is a load cabin located at the rear part, and the front cabin comprises a control cabin, a power supply cabin and a unit cabin; the reactor is accommodated in the load bin; the controller is accommodated in the control bin; the transformer is accommodated in the power supply bin; the unit bin is used for accommodating a to-be-detected high-voltage frequency converter power unit; two ends of the to-be-detected high-voltage frequency converter power unit are electrically connected with the transformer and the reactor respectively; a fan hole is formed in a top plate of the load bin, and a cabinet top fan is arranged at the fan hole; unit heat dissipation holes are formed in the part, corresponding to the backs of the unit bins, of the partition plate, and the fan holes and the unit heat dissipation holes form an air draft channel of a cabinet top fan. According to the detection device of the high-voltage frequency converter power unit, the technical problem that a traditional detection device is poor in heat dissipation capacity is solved.

Description

Technical Field

[0001] The present application relates to the technical field of inverter testing, and in particular to a detection device for a power unit of a high-voltage inverter. Background Art

[0002] At present, the high-voltage inverter power unit is an important device for the operation of the inverter. The high-voltage inverter is composed of multiple high-voltage inverter power units connected in series. Detecting whether the high-voltage inverter power unit can work normally and whether it can operate under long-term load is a prerequisite for ensuring the stable operation of the high-voltage inverter.

[0003] In the related art, the detection device of the traditional high-voltage inverter power unit is often a cabinet structure, and various electrical components are arranged inside the cabinet.

[0004] However, since traditional detection devices contain a variety of electrical components, they are prone to generate a lot of heat, which can cause malfunctions. Traditional detection devices generally only have heat dissipation holes on the cabinet doors and the outer panels of the cabinet structure, and then rely on natural heat dissipation, which has poor heat dissipation capacity.

[0005] Therefore, those skilled in the art are in urgent need of designing a detection device with good heat dissipation capability. Summary of the invention

[0006] In view of the defects existing in the prior art, the purpose of the present application is to provide a detection device for a high-voltage inverter power unit to solve the technical problem of poor heat dissipation capacity of traditional detection devices.

[0007] In order to achieve the above purpose, the technical solution adopted is a detection device for a high-voltage inverter power unit, comprising:

[0008] The cabinet structure is divided into two parts, front and rear, by a partition plate, namely a load compartment at the rear and a front compartment at the front, wherein the front compartment includes a control compartment, a power compartment and a unit compartment;

[0009] Reactance, housed in the load compartment;

[0010] A controller, housed in the control compartment;

[0011] The transformer is housed in the power supply compartment;

[0012] A unit compartment is used to accommodate a power unit of a high-voltage frequency converter to be inspected; two ends of the power unit of the high-voltage frequency converter to be inspected are electrically connected to the transformer and the reactor respectively;

[0013] The top plate of the load bin is provided with a fan hole, and a cabinet top fan is arranged at the fan hole; a part of the partition plate corresponding to the back of the unit bin is provided with a unit heat dissipation hole, and the fan hole and the unit heat dissipation hole form an exhaust channel for the cabinet top fan.

[0014] On the basis of the above technical solution, two guide rails are arranged at the upper and lower edges of the unit heat dissipation hole, and a slidable plastic plate is arranged between the two guide rails.

[0015] On the basis of the above technical solution, the unit heat dissipation holes connect the unit compartment and the load compartment, and the unit heat dissipation holes occupy more than half of the area of ​​the partition plate at the back of the unit compartment.

[0016] On the basis of the above technical solution, the front compartment is divided into four parts in a field shape, the controller is located in the upper part, the power supply compartment is located in the lower part, and the control compartment and the power supply compartment are arranged diagonally opposite each other.

[0017] Based on the above technical solution, the control compartment is located in the upper right area of ​​the front compartment, the power compartment is located in the lower left area of ​​the front compartment, and the unit compartment is located in the lower right area of ​​the front compartment; the cabinet doors of the power compartment and the unit compartment are provided with several ventilation mesh ports.

[0018] On the basis of the above technical solution, the detection device further includes a whole machine base, which is arranged at the bottom of the cabinet structure, and the bottom plate of the cabinet structure has a certain gap from the ground under the action of the whole machine base.

[0019] Based on the above technical solution, a plurality of ventilation holes are provided on the bottom plate of the cabinet structure.

[0020] Based on the above technical solution, the detection device also includes a trailer for transporting and supporting the high-voltage inverter power unit to be tested. The trailer is accommodated in the unit warehouse, and a number of rollers are arranged at the bottom of the trailer. The pallet of the trailer replaces the bottom plate of the unit warehouse.

[0021] On the basis of the above technical solution, the pallet of the trailer is flush with the bottom plate of the cabinet structure.

[0022] Based on the above technical solution, the exhaust direction of the cabinet top fan is from bottom to top.

[0023] The beneficial effects of the technical solution provided by this application include:

[0024] 1. In the detection device of the present application, the load compartment is located at the rear of the cabinet structure, and contains an inductor inside, which serves as the output load of the high-voltage inverter power unit to be tested; the unit compartment contains the high-voltage inverter power unit to be tested; the control compartment contains the control system, and the power compartment contains the transformer to provide the power required by the high-voltage inverter power unit to be tested. The internal components of the cabinet structure cooperate with each other, which simplifies the detection device, makes the structure simple and compact, and reduces the equipment cost.

[0025] The detection device of the present application has a fan hole on the top plate of the load bin, and a unit heat dissipation hole on the corresponding part of the partition plate on the back of the unit bin. The fan hole and the unit heat dissipation hole form an exhaust channel. The exhaust channel runs through the entire cabinet structure from bottom to top. The fan on the top of the cabinet draws air and dissipates heat through the exhaust channel, dissipating heat for the entire cabinet structure. The heat dissipation capacity is strong, and the reactor, the power unit of the high-voltage inverter to be tested, and the transformer can be fully cooled, thereby solving the technical problem of poor heat dissipation capacity of traditional detection devices.

[0026] 2. In the detection device of the present application, two guide rails are arranged on the upper and lower edges of the unit heat dissipation hole, and a slidable plastic plate is arranged between the two guide rails. The plastic plate can slide along the guide rails, so as to adjust the opening area of ​​the unit heat dissipation hole according to the size of the high-voltage inverter power unit to be tested, so as to meet different heat dissipation requirements, and also can meet the heat dissipation requirements of aging experiments of high-voltage inverter power units to be tested of different sizes, and has a wide range of applications.

[0027] 3. The detection device of the present application also includes a trailer, which is accommodated in the unit warehouse. A number of rollers are arranged at the bottom of the trailer. The trailer's pallet replaces the bottom plate of the unit warehouse, that is, the unit warehouse is not provided with a bottom plate, and the trailer is directly used to transport and support the high-voltage inverter power unit to be inspected; there is a trailer at the bottom of the unit warehouse, which makes it more convenient and quick to replace the high-voltage inverter power unit to be inspected, and can improve the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0029] Figure 1 A schematic diagram of a detection device with a cabinet door provided in an embodiment of the present application.

[0030] Figure 2 A front view of a detection device without a cabinet door provided in an embodiment of the present application.

[0031] Figure numerals: 1. load compartment; 2. unit compartment; 3. control compartment; 4. power compartment; 5. cabinet top fan; 6. transformer; 7. unit heat dissipation hole; 8. guide rail; 9. plastic plate; 10. trailer; 11. controller; 12. whole machine base. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the present application clearer, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. In addition, the technical features involved in each embodiment of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0033] The present application discloses a detection device for a high-voltage inverter power unit, so as to solve the technical problem that the traditional detection device has poor heat dissipation capability.

[0034] like Figure 1 and Figure 2 As shown, the present application discloses a detection device for a high-voltage inverter power unit, and the detection device includes a cabinet structure and a testing device.

[0035] The cabinet structure is divided into two parts, namely, a load compartment 1 at the rear and a front compartment at the front, by a partition plate. The front compartment includes a control compartment 3, a power compartment 4 and a unit compartment 2.

[0036] The test device includes a reactor, a controller 11, a transformer 6 and a high-voltage inverter power unit to be tested. The reactor is contained in the load compartment 1, the controller 11 is contained in the control compartment 3, and the transformer 6 is contained in the power compartment 4 to provide high-voltage power to the high-voltage inverter power unit to be tested.

[0037] The unit compartment 2 accommodates the high-voltage inverter power unit to be inspected, and two ends of the high-voltage inverter power unit to be inspected are electrically connected to the transformer 6 and the reactor respectively.

[0038] A fan hole is provided on the top plate of the load bin 1, and a cabinet top fan 5 is arranged at the fan hole; a unit heat dissipation hole 7 is provided on the corresponding part of the partition plate on the back of the unit bin 2, and the fan hole and the unit heat dissipation hole 7 form an exhaust channel for the cabinet top fan 5, and the exhaust channel runs through the entire cabinet structure from bottom to top, and has a strong heat dissipation capacity.

[0039] The detection device of the present application has a load compartment 1 that contains an inductor as an output load of the high-voltage inverter power unit to be tested; the unit compartment 2 contains the high-voltage inverter power unit to be tested; the control compartment 2 contains the control system, and the power compartment 4 contains the transformer to provide the input and output required by the high-voltage inverter power unit to be tested. The internal components of the cabinet structure cooperate with each other, which simplifies the detection device, makes the structure simple and compact, and reduces the equipment cost.

[0040] In the detection device of the present application, a fan hole is provided on the top plate of the load bin 1, and a unit heat dissipation hole 7 is provided on the corresponding part of the partition plate on the back of the unit bin 2. The fan hole and the unit heat dissipation hole 7 form an exhaust channel, and the exhaust channel runs through the entire cabinet structure from bottom to top. The cabinet top fan 5 draws air through the exhaust channel to dissipate heat, dissipating the heat of the entire cabinet structure. The heat dissipation capacity is strong, and it can fully dissipate the heat of the reactance, the power unit of the high-voltage inverter to be tested, and the transformer, thereby solving the technical problem of poor heat dissipation capacity of traditional detection devices.

[0041] The circuit loop and control signal loop of the power unit of the high-voltage inverter to be tested in this application are conventional technologies and will not be described in detail in this application.

[0042] In one embodiment, two guide rails 8 are disposed at the upper and lower edges of the unit heat dissipation hole 7 , and a slidable plastic plate 9 is disposed between the two guide rails 8 .

[0043] In the detection device of the present application, two guide rails 8 are arranged on the upper and lower edges of the unit heat dissipation hole 7, and a slidable plastic plate 9 is arranged between the two guide rails 8. The plastic plate 9 can slide along the guide rails 8, so as to adjust the opening area of ​​the unit heat dissipation hole 7 according to the size of the high-voltage inverter power unit to be tested, so as to meet different heat dissipation requirements, and also meet the heat dissipation requirements of aging experiments of high-voltage inverter power units to be tested of different sizes, and has a wide range of applications.

[0044] In one embodiment, the unit heat dissipation hole 7 connects the unit compartment 2 and the load compartment 1 , and the unit heat dissipation hole 7 occupies more than half of the area of ​​the partition plate at the back of the unit compartment 2 .

[0045] The detection device of the present application has a large-area unit heat dissipation hole 7, which can enhance the heat dissipation capacity of the detection device.

[0046] In one embodiment, the front compartment is divided into four parts in a field shape, with the controller 11 located in the upper part, the power supply compartment 4 located in the lower part, and the control compartment 3 and the power supply compartment 4 are arranged diagonally, and there is a spare part that can be used to accommodate a low-voltage inverter and other components.

[0047] In the detection device of the present application, the control compartment 3 and the power compartment 4 are arranged diagonally opposite to each other and are separated as much as possible to avoid mutual influence between the control compartment 3 and the power compartment 4 as much as possible.

[0048] Furthermore, the control compartment 3 is located in the upper right area of ​​the front compartment, the power compartment 4 is located in the lower left area of ​​the front compartment, and the unit compartment 2 is located in the lower right area of ​​the front compartment; the cabinet doors of the power compartment 4 and the unit compartment 2 are provided with several ventilation mesh openings.

[0049] In one embodiment, the detection device further includes a whole machine base 12, which is arranged at the bottom of the cabinet structure, and the bottom plate of the cabinet structure has a certain gap from the ground under the action of the whole machine base 12, and the gap can further improve the heat dissipation capacity.

[0050] Furthermore, the bottom plate of the cabinet structure is provided with a plurality of ventilation holes. The plurality of ventilation holes on the bottom plate of the cabinet structure can further improve the heat dissipation capacity.

[0051] In one embodiment, the detection device also includes a trailer 10, which is accommodated in the unit warehouse 2. A plurality of rollers are arranged at the bottom of the trailer 10. The pallet of the trailer 10 replaces the bottom plate of the unit warehouse 2, that is, the unit warehouse 2 is not provided with a bottom plate, and the trailer 10 is directly used to transport and support the high-voltage inverter power unit to be inspected.

[0052] The detection device of the present application has a trailer 10 at the bottom of the unit compartment 2, which makes it more convenient and quick to replace the power unit of the high-voltage inverter to be detected, and can improve the detection efficiency.

[0053] Furthermore, the pallet of the trailer 10 is flush with the bottom plate of the cabinet structure.

[0054] Furthermore, the exhaust direction of the cabinet top fan 5 is from bottom to top.

[0055] In the detection device of the present application, the load compartment 1 is located at the rear of the cabinet structure, and contains an inductor inside, which serves as the output load of the high-voltage inverter power unit to be tested; the unit compartment 2 is located in the lower right area of ​​the front compartment of the cabinet structure, and contains the high-voltage inverter power unit to be tested; the control compartment 2 is located in the upper right area of ​​the front compartment of the cabinet structure, and contains the control system (test computer) and the low-voltage inverter; the power supply compartment 4 is located in the lower left area of ​​the front compartment of the cabinet structure, and contains the transformer to provide the power required for the high-voltage inverter power unit to be tested. The internal components of the cabinet structure cooperate with each other, which streamlines the detection device, makes the structure simple and compact, and reduces the equipment cost.

[0056] The detection device of the present application has a trailer 10 at the bottom of the unit compartment 2, which makes it more convenient and quick to replace the power unit of the high-voltage inverter to be detected, and can improve the detection efficiency.

[0057] In the detection device of the present application, the cabinet top fan 5 forms a heat dissipation channel from bottom to top through the fan hole and the unit heat dissipation hole 7 to dissipate heat for the entire cabinet structure. The cabinet top fan 5 draws air through the heat dissipation channel and has a strong heat dissipation capacity. It can fully dissipate the heat of the reactance, the power unit of the high-voltage inverter to be tested, and the transformer, thereby solving the technical problem of poor heat dissipation capacity of traditional detection devices.

[0058] The detection device of the present application is designed with adjustable size of the unit heat dissipation hole 7, so that the detection device of the present application can not only detect the power unit of the high-voltage inverter to be detected, but also conduct load aging experiments on the power units of the high-voltage inverter to be detected of different sizes, and has a wide range of applications.

[0059] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0060] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0061] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A detection device for a high-voltage inverter power unit, characterized in that: Include: The cabinet structure is divided into two parts, front and rear, by a partition plate, which are a load compartment (1) located at the rear and a front compartment located at the front, wherein the front compartment includes a control compartment (3), a power compartment (4) and a unit compartment (2); A reactance, housed in the load compartment (1); A controller (11) is housed in the control compartment (3); A transformer (6) is housed in the power supply compartment (4); The unit compartment (2) accommodates the power unit of the high-voltage frequency converter to be tested; two ends of the power unit of the high-voltage frequency converter to be tested are electrically connected to the transformer (6) and the reactor respectively; The top plate of the load compartment (1) is provided with a fan hole, and a cabinet top fan (5) is arranged at the fan hole; the corresponding part of the partition plate at the back of the unit compartment (2) is provided with a unit heat dissipation hole (7), and the fan hole and the unit heat dissipation hole (7) form an exhaust channel for the cabinet top fan (5).

2. A detection device for a high-voltage inverter power unit according to claim 1, characterized in that: Two guide rails (8) are arranged at the upper and lower edges of the unit heat dissipation hole (7), and a slidable plastic plate (9) is arranged between the two guide rails (8).

3. The detection device for a high-voltage inverter power unit according to claim 1, characterized in that: The unit heat dissipation hole (7) is connected to the unit compartment (2) and the load compartment (1), and the unit heat dissipation hole (7) occupies more than half of the area of ​​the partition plate at the back of the unit compartment (2).

4. The detection device for a high-voltage inverter power unit according to claim 1, characterized in that: The front compartment is divided into four parts in a field shape, the controller (11) is located in the upper part, the power supply compartment (4) is located in the lower part, and the control compartment (3) and the power supply compartment (4) are arranged diagonally opposite to each other.

5. A detection device for a high-voltage inverter power unit as claimed in claim 4, characterized in that: The control compartment (3) is located in the upper right area of ​​the front compartment, the power compartment (4) is located in the lower left area of ​​the front compartment, and the unit compartment (2) is located in the lower right area of ​​the front compartment; the cabinet doors of the power compartment (4) and the unit compartment (2) are provided with a plurality of ventilation mesh openings.

6. A detection device for a high-voltage inverter power unit according to claim 1, characterized in that: The detection device further comprises a whole machine base (12), wherein the whole machine base (12) is arranged at the bottom of the cabinet structure, and the bottom plate of the cabinet structure has a certain gap from the ground under the action of the whole machine base (12).

7. A detection device for a high-voltage inverter power unit as claimed in claim 6, characterized in that: The bottom plate of the cabinet structure is provided with a plurality of ventilation holes.

8. The detection device for a high-voltage inverter power unit according to claim 1, characterized in that: The detection device also comprises a trailer (10) for transporting and supporting the high-voltage inverter power unit to be tested, the trailer (10) being accommodated in the unit bin (2), a plurality of rollers being arranged at the bottom of the trailer (10), and the pallet of the trailer (10) replacing the bottom plate of the unit bin (2).

9. A detection device for a high-voltage inverter power unit as claimed in claim 8, characterized in that: The support plate of the trailer (10) is flush with the bottom plate of the cabinet structure.

10. A detection device for a high-voltage inverter power unit according to claim 1, characterized in that: The air exhaust direction of the cabinet top fan (5) is from bottom to top.

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