Rectification cabinet

Abstract

The utility model relates to a rectification cabinet, and belongs to the technical field of rectification equipment. The rectifier cabinet comprises a cabinet body in which a first air duct and a second air duct are formed, and the first air duct and the second air duct are arranged separately; the rectifier module is arranged in the cabinet body and is arranged to dissipate heat through the first air duct; and the reactor module and the rectifier module are arranged in the cabinet body at an interval, and the reactor module is arranged to dissipate heat through the second air duct. According to the rectifier cabinet provided by the invention, the first air duct and the second air duct which can separately dissipate heat for the rectifier module and the reactor module are arranged, so that the heat dissipation efficiency and the heat dissipation effect can be improved, and the problems of relatively low heat dissipation efficiency and insufficient heat dissipation effect of an existing rectifier cabinet can be solved.

Description

Technical Field

[0001] This application relates to the technical field of rectification equipment, and in particular to a rectification cabinet. Background Art

[0002] A rectification cabinet is a device used to convert alternating current into direct current. A rectification cabinet generally includes a cabinet body and various power modules such as rectification modules arranged in the cabinet body. Since various power modules are integrally arranged in the cabinet body, when the rectification cabinet is working, each power module will generate a large amount of heat, resulting in a relatively high temperature inside the cabinet. If heat dissipation is not carried out in time, it is easy to cause the working efficiency of each power module to decrease, and in severe cases, problems such as overheating damage or failure may even occur.

[0003] Currently, most rectification cabinets use overall air ducts for heat dissipation. Specifically, a fan is arranged inside the cabinet body, and the fan is used to provide wind power, and the heat is dissipated by exhausting air through the same air duct. However, when dissipating heat through the same air duct, the distribution of wind power inside the cabinet body is uneven, which is likely to lead to low heat dissipation efficiency. Moreover, when the hot air generated by the heat dissipation of different power modules gathers in the same air duct, convection will occur, resulting in the hot air flowing back into the cabinet body, reducing the heat dissipation effect. Utility Model Content

[0004] This application provides a rectification cabinet to solve the technical problems of low heat dissipation efficiency and insufficient heat dissipation effect of the existing rectification cabinet.

[0005] According to one aspect of this application, a rectification cabinet is provided, including: a cabinet body, formed with a first air duct and a second air duct, the first air duct and the second air duct being separated; a rectification module, arranged in the cabinet body and configured to dissipate heat through the first air duct; and a reactor module, arranged in the cabinet body at an interval from the rectification module and configured to dissipate heat through the second air duct.

[0006] According to the rectification cabinet provided by this application, by arranging a first air duct and a second air duct separated from each other inside the cabinet body, where the first air duct is used to dissipate heat for the rectification module alone, and the second air duct is used to dissipate heat for the reactor module alone, targeted heat dissipation can be carried out for the rectification module and the reactor module respectively, which helps to improve the heat dissipation flexibility, enabling both the rectification module and the reactor module to be effectively cooled, thereby improving the heat dissipation efficiency. And since the heat generated when the rectification module operates and the heat generated when the reactor module operates can be discharged through different air ducts respectively, the influence of the heat generated by the rectification module on the reactor module and the influence of the heat generated by the reactor module on the rectification module can be minimized as much as possible, which is beneficial to improving the heat dissipation effect.

[0007] In a further preferred solution, the number of the first air ducts and the rectification modules are both multiple. The multiple first air ducts are separately arranged, and the multiple first air ducts are arranged in one-to-one correspondence with the multiple rectification modules.

[0008] In this solution, the rectifier cabinet includes multiple rectification modules. The use of multiple rectification modules is conducive to improving the rectification efficiency. Moreover, multiple first air ducts are arranged in the cabinet body, and each first air duct separately dissipates heat for one rectification module. The use of multiple first air ducts helps to improve the heat dissipation efficiency and effect of each rectification module.

[0009] In a further preferred solution, the rectifier cabinet further includes a first fan, and the first fan is used to blow air or extract air to the rectification module, so that the heat generated by the rectification module is discharged through the first air duct.

[0010] In this solution, the rectifier cabinet further includes a first fan for cooperating with the first air duct. The first fan can blow air or extract air to the rectification module to take away the heat generated during the operation of the rectification module, and discharge it out of the cabinet through the corresponding first air duct, thereby effectively dissipating heat from the rectification module.

[0011] In a further preferred solution, the rectifier cabinet further includes a second fan, and the second fan is used to blow air or extract air to the reactor module, so that the heat generated by the reactor module is discharged through the second air duct.

[0012] In this solution, the rectifier cabinet further includes a second fan for cooperating with the second air duct. The second fan can blow air or extract air to the reactor module to take away the heat generated during the operation of the reactor module, and discharge it out of the cabinet through the corresponding second air duct, thereby effectively dissipating heat from the reactor module.

[0013] In a further preferred solution, the rectification module includes a housing and a rectification device. The housing is connected to the cabinet body, and the rectification device is arranged inside the housing; the first fan is arranged inside the housing, and the first fan and the first air duct are arranged on opposite sides of the rectification device.

[0014] In this solution, the rectification module includes a housing and a rectification device. The rectification device and the first fan are integrally arranged inside the housing. On the one hand, this is convenient for using the first fan to supply air separately to the rectification device, thereby improving the heat dissipation effect. On the other hand, it can also make the internal structure of the rectifier cabinet more compact, which is conducive to reducing the occupied space. Moreover, the first fan and the first air duct are respectively arranged on opposite sides of the rectification device. The first fan blows air to the rectification device to take away the heat generated during the operation of the rectification device, and then the heat can be directly discharged out of the cabinet through the first air duct, which is conducive to improving the heat dissipation efficiency.

[0015] In a further preferred solution, the rectifying device includes an IGBT (Insulated Gate Bipolar Transistor) component and a capacitor component.

[0016] In this solution, the rectifying device is used to invert direct current into alternating current to achieve the main function of the rectifier cabinet. Moreover, when the rectifying module operates, the IGBT component is the main heat source. If the heat dissipation of the rectifying module is insufficient and the internal temperature is too high, it will lead to an increase in the failure rate of the rectifying module. In the embodiment of the present application, the first fan and the first air duct can supply air and dissipate heat for the IGBT component separately, which is beneficial to improving the heat dissipation effect to ensure the normal operation of the IGBT component.

[0017] In a further preferred solution, the first air duct extends from the top of the rectifying module to the top of the cabinet; and / or the second air duct extends from the top of the reactor module to the top of the cabinet.

[0018] In this solution, since the hot air generated by the operation of the rectifying module and the reactor module will flow upward in the natural state (hot air rises), when the first air duct and the second air duct are respectively extended from the tops of the rectifying module and the reactor module to the top of the cabinet, the hot air will flow out of the cabinet more smoothly through the first air duct and the second air duct, which can avoid the backflow of hot air and improve the heat dissipation efficiency at the same time.

[0019] In a further preferred solution, the air outlet of the first air duct and the air outlet of the second air duct are located on the same surface of the cabinet.

[0020] In this solution, by setting the air outlets of the first air duct and the second air duct on the same surface of the cabinet, the hot air generated by the operation of the rectifying module and the reactor module will be discharged from the same surface of the cabinet through the first air duct and the second air duct, that is, the hot air will be concentrated and discharged from the same surface of the cabinet, which is convenient for centralized treatment of the hot air discharged from the cabinet, thereby improving the overall heat dissipation efficiency of the rectifier cabinet.

[0021] In a further preferred solution, the rectifier cabinet further includes a plurality of distribution busbars, and the plurality of distribution busbars are arranged at intervals; each rectifying module is detachably connected to the cabinet through one of the distribution busbars.

[0022] In this solution, the distribution busbar is electrically connected to the rectifying module and is mainly used for electrically controlling the rectifying module and transmitting current. By providing a plurality of distribution busbars, and each rectifying module is detachably connected to the cabinet through one of the distribution busbars, when it is necessary to maintain some rectifying modules, only the corresponding distribution busbar needs to be removed from the cabinet, without removing all the distribution busbars, which is beneficial to improving the maintenance efficiency of the rectifying module.

[0023] In a further preferred embodiment, the included angle α between the thickness direction of the distribution busbar and the height direction of the cabinet body satisfies 0° < α ≤ 90°.

[0024] In this embodiment, since the hot air generated inside the cabinet during the operation of the rectifier cabinet will naturally flow upward, that is, the hot air will flow along the height direction of the cabinet body, the thickness direction of the distribution busbar is set to have an included angle greater than 0° with the height direction of the cabinet body. At this time, the distribution busbar is inclined relative to the height direction of the cabinet body, so that the positive projection area of the distribution busbar in the height direction of the cabinet body is smaller, and the area blocked by the distribution busbar during the flow of hot air is smaller, which is beneficial to improving the flow rate of hot air to improve the heat dissipation efficiency, and at the same time avoiding the problem of hot air backflow caused by the blockage.

[0025] In a further preferred embodiment, at least two of the plurality of distribution busbars overlap at least partially in the positive projection in the height direction of the cabinet body.

[0026] In this embodiment, by overlapping at least part of the positive projections of some of the distribution busbars in the height direction of the cabinet body, the area blocked by the distribution busbars during the flow of hot air can be further reduced, which helps to improve the heat dissipation effect.

[0027] In summary, the rectifier cabinet provided by the present application has at least the following beneficial effects:

[0028] The rectifier cabinet provided according to the present application includes a cabinet body, a rectification module, and a reactor module. The cabinet body is formed with a first air duct and a second air duct that are separated from each other. The rectification module and the reactor module are both arranged inside the cabinet body and are respectively arranged corresponding to the first air duct and the second air duct. The rectification module and the reactor module can be cooled respectively through the first air duct and the second air duct, so that the heat dissipation amounts of the rectification module and the reactor module can be controlled respectively, which is beneficial to improving the heat dissipation uniformity and flexibility, thereby improving the heat dissipation efficiency. And, since the heat generated during the operation of the rectification module and the heat generated during the operation of the reactor module can be discharged through different air ducts respectively, the influence of the heat generated by the rectification module on the reactor module and the influence of the heat generated by the reactor module on the rectification module can be minimized as much as possible, which is beneficial to improving the heat dissipation effect. Thus, by providing the first air duct and the second air duct that can cool the rectification module and the reactor module separately in the present application, it is beneficial to improve the heat dissipation efficiency and the heat dissipation effect, and thus the problem of low heat dissipation efficiency and insufficient heat dissipation effect of the existing rectifier cabinet can be solved. Description of the Drawings

[0029] To more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0030] Figure 1 Front view structural schematic diagram of the rectifier cabinet provided by the embodiment of the present application;

[0031] Figure 2 Side view structural schematic diagram of the rectifier cabinet provided by the embodiment of the present application;

[0032] Figure 3 Rear view structural schematic diagram of the rectifier cabinet provided by the embodiment of the present application;

[0033] Figure 4 Top view structural schematic diagram of the rectifier cabinet provided by the embodiment of the present application;

[0034] Figure 5 Structural schematic diagram of the rectifier module of the rectifier cabinet provided by the embodiment of the present application.

[0035] The reference numerals are as follows:

[0036] 100, rectifier cabinet;

[0037] 110, cabinet body; 111, first air duct; 112, second air duct;

[0038] 120, rectifier module; 121, housing; 122, rectifier device;

[0039] 130, reactor module;

[0040] 140, first fan;

[0041] 150, second fan;

[0042] 160, distribution busbar. Specific embodiments

[0043] In the description of the present application, it should be understood that when terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., which indicate the orientation or positional relationship, are used, without special instructions, they are understood to be based on the orientation or positional relationship shown in the drawings. This is 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 should not be construed as a limitation to the present application.

[0044] In addition, features limited by "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Features limited by "first" and "second" may explicitly or implicitly include at least one of the limited features. When the description "a plurality of" appears, the general meaning is at least two, such as two, three, etc., unless otherwise specifically limited.

[0045] In the present application, unless otherwise clearly specified and limited, when terms such as "installed", "connected", "coupled", "fixed", etc. are used, they should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection, it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0046] In the description of this specification, when terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. appear, it means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0047] Please refer to Figures 1 to 5 , the rectifier cabinet 100 provided by the embodiment of the present application at least includes a cabinet body 110, a rectifier module 120, and a reactor module 130.

[0048] The cabinet body 110 serves as the outer contour of the rectifier cabinet 100, and has a cavity inside for accommodating components such as the rectifier module 120. Exemplarily, the cabinet body 110 can be in a substantially cuboid structure. Of course, in other embodiments, the shape of the cabinet body 110 may not be limited to the cuboid structure.

[0049] The cabinet body 110 is formed with a first air duct 111 and a second air duct 112. The first air duct 111 and the second air duct 112 are hollow channels through which air can flow and guide the air flow. Exemplarily, the first air duct 111 can be formed by the structure of the cabinet body 110 itself, or can be surrounded by the cabinet body 110 and other components together. And, the cross-section of the first air duct 111 can be any shape such as rectangular, triangular, circular, etc.

[0050] The first air duct 111 and the second air duct 112 are separated. The so-called separation setting means that the first air duct 111 and the second air duct 112 are not connected to each other, that is, the air flow flowing through the first air duct 111 does not come into contact and mix with the air flow flowing through the second air duct 112.

[0051] The rectifier module 120 is arranged inside the cabinet body 110. The rectifier module 120 includes components that can convert alternating current into direct current to achieve the rectification function of the rectifier cabinet 100. The rectifier module 120 is arranged to dissipate heat through the first air duct 111. Exemplarily, the rectifier module 120 can be arranged at the entrance of the first air duct 111 so that the heat generated during the operation of the rectifier module 120 can be discharged outside the cabinet body 110 along with the air flow from the first air duct 111.

[0052] The reactor module 130 is arranged inside the cabinet body 110, and the reactor module 130 is arranged at an interval from the rectifier module 120. The reactor module 130 is mainly used for filtering high-frequency noise and stabilizing the output. Exemplarily, the reactor module 130 can include a reactor. The reactor can filter high-frequency noise signals during the process of converting alternating current into direct current to maintain the purity of the output direct current, and reduce the pulsation or fluctuation amplitude of the converted direct current to ensure a stable output current.

[0053] The reactor module 130 is arranged to dissipate heat through the second air duct 112. Exemplarily, the reactor module 130 can be arranged at the entrance of the second air duct 112 so that the heat generated during the operation of the reactor module 130 can be discharged outside the cabinet body 110 along with the air flow from the second air duct 112.

[0054] Through the above structural design, since the first air duct 111 and the second air duct 112 are separately arranged in the cabinet body 110, wherein the first air duct 111 is used to dissipate heat for the rectifier module 120 alone, and the second air duct 112 is used to dissipate heat for the reactor module 130 alone, the rectifier module 120 and the reactor module 130 can be dissipate heat targeted through the first air duct 111 and the second air duct 112 respectively, which helps to improve the heat dissipation flexibility, so that both the rectifier module 120 and the reactor module 130 can be effectively cooled, thereby improving the heat dissipation efficiency. Moreover, since the heat generated when the rectifier module 120 operates and the heat generated when the reactor module 130 operates can be discharged through different air ducts respectively, the influence of the heat generated by the rectifier module 120 on the reactor module 130 and the influence of the heat generated by the reactor module 130 on the rectifier module 120 can be minimized as much as possible, which is beneficial to improving the heat dissipation effect.

[0055] Particularly, in the actual application process, although heat is generated when both the rectifier module 120 and the reactor module 130 operate, the heat generated by the reactor module 130 is generally higher than that generated by the rectifier module 120, that is, the reactor module 130 is the main heat source. In the prior art, the rectifier module 120 and the reactor module 130 are often cooled through the same air duct at the same time. At this time, the hot air generated by the heat dissipation of the rectifier module 120 and the hot air generated by the reactor module 130 will be mixed and convected when discharged through the same air duct, resulting in the hot air flowing back into the cabinet body 110. And because the temperature of the hot air generated by the reactor module 130 is relatively high, if the hot air with a higher temperature flows back to the vicinity of the rectifier module 120 and exchanges heat with the rectifier module 120, this may instead cause the temperature of the rectifier module 120 to be higher, making the rectifier module 120 overheat and seriously affecting the working efficiency of the rectifier module 120.

[0056] Compared with the above-mentioned disadvantages existing in the prior art, in the embodiment of the present application, by providing the first air duct 111 and the second air duct 112 that can dissipate heat for the rectifier module 120 and the reactor module 130 separately, the problem of hot air backflow can be effectively avoided, which is beneficial to realizing the effective heat dissipation of the rectifier module 120 and improving the overall heat dissipation efficiency of the rectifier cabinet 100.

[0057] As a further preferred implementation scheme, on the basis of the above scheme, in the specific embodiment of the present application, one or more of the following additions or combinations may also be included.

[0058] In some alternative embodiments, the number of the first air ducts 111 and the rectification modules 120 are both multiple. The multiple first air ducts 111 are arranged separately, and the multiple first air ducts 111 are arranged in one-to-one correspondence with the multiple rectification modules 120. In this embodiment, the rectification cabinet 100 includes multiple rectification modules 120, and the use of multiple rectification modules 120 helps to improve the rectification efficiency. Moreover, by arranging multiple first air ducts 111 in the cabinet body 110, each first air duct 111 dissipates heat for a corresponding rectification module 120 alone, and the use of multiple first air ducts 111 helps to improve the heat dissipation efficiency and effect of each rectification module 120.

[0059] Exemplarily, referring to Figure 1 , there are three rectification modules 120 arranged side by side and at intervals in the cabinet body 110. The cabinet body 110 further forms three first air ducts 111, which are arranged side by side and separately. Each first air duct 111 is arranged corresponding to a rectification module 120, so that one first air duct 111 is used to dissipate heat for a corresponding rectification module 120 alone. Thus, by configuring a separate heat dissipation air duct for each rectification module 120, the mutual influence of heat generation of each rectification module 120 can be minimized as much as possible to improve the heat dissipation efficiency, which is beneficial to improving the operation efficiency of the rectification module 120.

[0060] It can be understood that in other alternative embodiments, the number of the first air ducts 111 and the rectification modules 120 is not limited to the above examples. For example, the number of the first air ducts 111 and the rectification modules 120 can also be one, two, four, five, etc.

[0061] In some alternative embodiments, the rectification cabinet 100 further includes a first fan 140, and the first fan 140 is used to blow air to or extract air from the rectification module 120, so that the heat generated by the rectification module 120 is discharged through the first air duct 111. In this embodiment, the rectification cabinet 100 further includes a first fan 140 that cooperates with the first air duct 111. The first fan 140 can blow air to or extract air from the rectification module 120 to take away the heat generated during the operation of the rectification module 120 and discharge it to the outside of the cabinet body 110 through the corresponding first air duct 111, thereby effectively dissipating heat from the rectification module 120.

[0062] Specifically, the first fan 140 can be of types such as a centrifugal fan or an axial flow fan, and in this embodiment, there are no special limitations on the relative positions of the first fan 140, the rectification module 120, and the first air duct 111. Exemplarily, the first fan 140 can be installed on the inner wall of the first air duct 111. By sucking air towards the rectification module 120, the air flow exchanges heat with the rectification module 120 and generates hot air. The hot air is sucked into the first air duct 111 by the first fan 140 and discharged outside the cabinet 110, thereby effectively dissipating the heat generated during the operation of the rectification module 120. Exemplarily, the first fan 140 can also be installed on the cabinet 110. By blowing air towards the rectification module 120, the air flow exchanges heat with the rectification module 120 and generates hot air. The hot air is blown into the first air duct 111 by the first fan 140 and discharged outside the cabinet 110, thereby effectively dissipating the heat generated during the operation of the rectification module 120.

[0063] In some alternative embodiments, the rectification cabinet 100 further includes a second fan 150. The second fan 150 is configured to blow air towards or suck air from the reactor module 130, so that the heat generated by the reactor module 130 is discharged through the second air duct 112. In this embodiment, the rectification cabinet 100 further includes a second fan 150 for cooperating with the second air duct 112. Through the second fan 150, air can be blown towards or sucked from the reactor module 130 to carry away the heat generated during the operation of the reactor module 130, and the heat is discharged to the outside of the cabinet 110 through the corresponding second air duct 112, thereby effectively dissipating the heat of the reactor module 130.

[0064] Exemplarily, referring to Figures 2 to 4 , the second fan 150 can be of types such as a centrifugal fan or an axial flow fan. The second fan 150 is installed on the cabinet 110, and the second fan 150 is located between the inlet of the second air duct 112 and the reactor module 130. By sucking air from the reactor module 130 through the second fan 150, the air flow exchanges heat with the reactor module 130 and generates hot air. The hot air is sucked into the second air duct 112 by the second fan 150 and discharged outside the cabinet 110, thereby effectively dissipating the heat generated during the operation of the rectification module 120. Moreover, when the second fan 150 is arranged between the inlet of the second air duct 112 and the reactor module 130, the hot air can be more accurately sucked into the second air duct 112 through the second fan 150, thereby effectively avoiding the problem that the hot air escapes in the cabinet 110 and affects other components such as the rectification module 120, which is beneficial to ensuring the normal operation of the rectification cabinet 100.

[0065] It should be noted that in other alternative embodiments, the installation position of the second fan 150 is not limited to the situation shown in the drawings. For example, the second fan 150 can also be installed below the reactor module 130 or other parts of the cabinet 110. By adjusting the wind direction of the second fan 150, the wind can also be blown into the second channel to achieve the heat dissipation function.

[0066] In some alternative embodiments, the rectifier module 120 includes a housing 121 and a rectifier device 122. The housing 121 is connected to the cabinet 110, and the rectifier device 122 is arranged inside the housing 121. The rectifier device 122 is a device for converting direct current into alternating current. The first fan 140 is arranged inside the housing 121, and the first fan 140 and the first air duct 111 are arranged on opposite sides of the rectifier device 122. In this embodiment, the rectifier device 122 and the first fan 140 are integrally arranged inside the housing 121. On the one hand, this is convenient for using the first fan 140 to supply air to the rectifier device 122 alone, thereby improving the heat dissipation effect. On the other hand, it can also make the internal structure of the rectifier cabinet 100 more compact, which is beneficial to reducing the occupied space. Moreover, the first fan 140 and the first air duct 111 are respectively arranged on opposite sides of the rectifier device 122. The first fan 140 blows air to the rectifier device 122 to take away the heat generated during the operation of the rectifier device 122, and then the heat can be directly discharged outside the cabinet 110 through the first air duct 111, which is beneficial to improving the heat dissipation efficiency.

[0067] Exemplarily, referring to Figure 5 , the housing 121 has a generally cuboid structure, and its interior is hollow for accommodating the rectifier device 122 and the first fan 140. Through the housing 121, the rectifier device 122 and the first fan 140 can be separated from other components in the cabinet 110, such as the reactor module 130, to prevent the hot air generated by the rectifier device 122 and the first fan 140 from flowing back in the cabinet 110 and affecting the heat dissipation efficiency. Moreover, the first air duct 111 is arranged at the top of the cabinet 110 and above the rectifier device 122, and the first fan 140 is arranged inside the housing 121 and below the rectifier device 122. Thus, when the first fan 140 is started, the air blown by the first fan 140 can sequentially pass through the rectifier device 122 and the first air duct 111 in a straight line, which is beneficial to increasing the wind speed and thus improving the heat exchange and heat dissipation efficiency.

[0068] In some alternative embodiments, the rectifier device 122 includes an IGBT component and a capacitor component. The rectifier device 122 can be used to invert direct current into alternating current to achieve the main function of the rectifier cabinet 100. Moreover, when the rectifier module 120 operates, the IGBT component is the main heat source. If the rectifier module 120 cannot dissipate heat sufficiently and the internal temperature is too high, the failure rate of the rectifier module 120 will increase. In the embodiments of the present application, the first fan 140 and the first air duct 111 can supply air and dissipate heat for the IGBT component separately, which is beneficial to improving the heat dissipation effect to ensure the normal operation of the IGBT component.

[0069] In some alternative embodiments, the first air duct 111 extends from the top of the rectifier module 120 to the top of the cabinet body 110. In some alternative embodiments, the second air duct 112 extends from the top of the reactor module 130 to the top of the cabinet body 110. Since the hot air generated by the operation of the rectifier module 120 and the reactor module 130 will flow upward under natural conditions (hot air rises), where "upward" means flowing in a direction opposite to the direction of gravity, and the height direction of the cabinet body 110 is parallel to the direction of gravity. Thus, when the first air duct 111 and the second air duct 112 are respectively extended from the tops of the rectifier module 120 and the reactor module 130 to the top of the cabinet body 110, the hot air will flow out of the cabinet body 110 more smoothly through the first air duct 111 and the second air duct 112, which can avoid the backflow of hot air and improve the heat dissipation efficiency at the same time.

[0070] In some alternative embodiments, the air outlet of the first air duct 111 and the air outlet of the second air duct 112 are located on the same surface of the cabinet body 110. In this embodiment, by setting the air outlet of the first air duct 111 and the air outlet of the second air duct 112 on the same surface of the cabinet body 110, the hot air generated by the operation of the rectifier module 120 and the reactor module 130 will be discharged from the same surface of the cabinet body 110 through the first air duct 111 and the second air duct 112, that is, the hot air will be concentrated and discharged from the same surface of the cabinet body 110, which is convenient for centralized treatment of the hot air discharged from the cabinet body 110, thereby improving the overall heat dissipation efficiency of the rectifier cabinet 100.

[0071] Exemplarily, with reference to Figures 1 to 4 , the first air duct 111 is arranged on the top of the rectifier module 120, the second air duct 112 is arranged on the top of the reactor module 130, and the air outlets of the first air duct 111 and the second air duct 112 are both located on the top surface of the cabinet body 110. Thus, the hot air generated by the rectifier module 120 will be discharged from the top surface of the cabinet body 110 through the first air duct 111, and at the same time, the hot air generated by the reactor module 130 will also be discharged from the top surface of the cabinet body 110 through the first air duct 111, which is convenient for subsequent centralized treatment of the hot air discharged from the top surface of the cabinet body 110 by other devices.

[0072] In some alternative embodiments, the rectifier cabinet 100 further includes a plurality of power distribution busbars 160, which are arranged at intervals; each rectifier module 120 is detachably connected to the cabinet body 110 through a power distribution busbar 160. In this embodiment, the power distribution busbar 160 is electrically connected to the rectifier module 120 and mainly used for electrically controlling the rectifier module 120 and transmitting current. By providing a plurality of power distribution busbars 160 and each rectifier module 120 being detachably connected to the cabinet body 110 through a power distribution busbar 160, when some rectifier modules 120 need to be maintained, only the corresponding power distribution busbar 160 needs to be removed from the cabinet body 110, without having to remove all the power distribution busbars 160, which is beneficial to improving the maintenance efficiency of the rectifier modules 120.

[0073] Exemplarily, the material of the power distribution busbar 160 can be selected as a copper bar, an aluminum bar, etc., which have good electrical conductivity. The power distribution busbar 160 is detachably connected to the cabinet body 110, for example, by bolts, and each power distribution busbar 160 is connected to a rectifier module 120. The connection manner between the rectifier module 120 and the cabinet body 110 is not limited. For example, the rectifier module 120 can be arranged to be able to be pulled out relative to the cabinet body 110 to remove the rectifier module 120 from the cabinet body 110 or install the rectifier module 120 into the cabinet body 110. Thus, when a plurality of rectifier modules 120 are provided in the cabinet body 110, if a certain rectifier module 120 needs to be disassembled and maintained, only the certain rectifier module 120 and the corresponding power distribution busbar 160 need to be removed from the cabinet body 110, which can improve the convenience of on-site construction and production efficiency.

[0074] Since the hot air generated inside the cabinet body 110 when the rectifier cabinet 100 is operating will naturally flow upward, that is, the hot air will flow along the height direction of the cabinet body 110. In order to reduce the blockage caused by the power distribution busbar 160 to the flow of hot air, the layout of the power distribution busbar 160 can be optimized.

[0075] In some alternative embodiments, the included angle α between the thickness direction of the power distribution busbar 160 and the height direction of the cabinet body 110 satisfies 0° < α ≤ 90°. Exemplarily, the included angle α can be 1°, 5°, 10°, 20°, 30°, 40°, 50°, 60°, 70°, 80°, 90° or any value or value range greater than 0° and less than or equal to 90°.

[0076] It should be noted that if the included angle between the thickness direction of the power distribution busbar 160 and the height direction of the cabinet body 110 is 0°, at this time, the positive projection area of the power distribution busbar 160 in the height direction of the cabinet body 110 (denoted as Smax) is the largest, resulting in a relatively large degree of blockage of the hot air flow by the power distribution busbar 160, which is not conducive to heat dissipation. In the embodiment of the present application, by controlling the included angle α between the thickness direction of the power distribution busbar 160 and the height direction of the cabinet body 110 to satisfy 0° < α ≤ 90°, that is, there is an included angle greater than 0° between the thickness direction of the power distribution busbar and the height direction of the cabinet body. At this time, the power distribution busbar is inclined relative to the height direction of the cabinet body, and the positive projection area of the power distribution busbar 160 in the height direction of the cabinet body 110 (denoted as S) satisfies S < Smax, thereby reducing the blockage of the hot air flow caused by the power distribution busbar 160 and being more conducive to heat dissipation.

[0077] In an exemplary embodiment, referring to Figure 1 , the thickness direction of the power distribution busbar 160 is parallel to the horizontal plane, and the height direction of the cabinet body 110 is parallel to the gravity direction. At this time, the thickness direction of the power distribution busbar 160 is perpendicular to the height direction of the cabinet body 110, that is, α = 90°. Since the hot air generated in the cabinet body 110 during the operation of the rectifier cabinet 100 will naturally flow upward, that is, the hot air will flow along the height direction of the cabinet body 110, setting the thickness direction of the power distribution busbar 160 perpendicular to the height direction of the cabinet body 110 makes the blockage area of the hot air flow caused by the power distribution busbar 160 the smallest, which is more conducive to increasing the flow rate of the hot air along the height direction of the cabinet body 110 to improve the heat dissipation efficiency, and at the same time avoiding the problem of hot air backflow caused by blockage.

[0078] Furthermore, the arrangement positions of multiple power distribution busbars 160 can be further optimized. In some alternative embodiments, at least part of the positive projections of at least two of the multiple power distribution busbars 160 in the height direction of the cabinet body 110 overlap. The so-called positive projection in the height direction of the cabinet body 110 is the positive projection of the power distribution busbar 160 on the horizontal plane. By overlapping at least part of the positive projections of some power distribution busbars 160 in the height direction of the cabinet body 110, the blockage area of the hot air flow caused by the power distribution busbars 160 can be further reduced, thereby contributing to improving the heat dissipation effect.

[0079] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present application. Those skilled in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present application.

Claims

1. A rectifier cabinet (100), characterized in that: include: The cabinet (110) is formed with a first air duct (111) and a second air duct (112), wherein the first air duct (111) and the second air duct (112) are arranged separately; A rectifier module (120) is arranged in the cabinet (110) and is configured to dissipate heat through the first air duct (111); as well as The reactor module (130) is arranged in the cabinet (110) at a distance from the rectifier module (120) and is configured to dissipate heat through the second air duct (112).

2. The rectifier cabinet (100) according to claim 1, characterized in that: The number of the first air ducts (111) and the number of the rectifier modules (120) are both multiple, the multiple first air ducts (111) are arranged separately, and the multiple first air ducts (111) and the multiple rectifier modules (120) are arranged in a one-to-one correspondence.

3. The rectifier cabinet (100) according to claim 1, characterized in that: The rectifier cabinet (100) further comprises a first fan (140), wherein the first fan (140) is used to blow or draw air toward the rectifier module (120), so that heat generated by the rectifier module (120) is discharged through the first air duct (111).

4. The rectifier cabinet (100) according to claim 1, characterized in that: The rectifier cabinet (100) further comprises a second fan (150), wherein the second fan (150) is used to blow or draw air toward the reactor module (130), so that heat generated by the reactor module (130) is discharged through the second air duct (112).

5. The rectifier cabinet (100) according to claim 3, characterized in that: The rectifier module (120) comprises a housing (121) and a rectifier device (122); the housing (121) is connected to the cabinet (110); and the rectifier device (122) is arranged in the housing (121); The first fan (140) is arranged in the housing (121), and the first fan (140) and the first air duct (111) are arranged on two opposite sides of the rectifier device (122).

6. The rectifier cabinet (100) according to claim 5, characterized in that: The rectifying device (122) includes an IGBT component and a capacitor component.

7. The rectifier cabinet (100) according to any one of claims 1 to 6, characterized in that: The first air duct (111) extends from the top of the rectifier module (120) to the top of the cabinet (110); and / or The second air duct (112) extends from the top of the reactor module (130) to the top of the cabinet (110).

8. The rectifier cabinet (100) according to any one of claims 1 to 6, characterized in that: The air outlet of the first air duct (111) and the air outlet of the second air duct (112) are located on the same surface of the cabinet (110).

9. The rectifier cabinet (100) according to claim 2, characterized in that: The rectifier cabinet (100) further comprises a plurality of power distribution busbars (160), wherein the plurality of power distribution busbars (160) are arranged at intervals; Each of the rectifier modules (120) is detachably connected to the cabinet (110) via a power distribution busbar (160).

10. The rectifier cabinet (100) according to claim 9, characterized in that: The angle α between the thickness direction of the power distribution busbar (160) and the height direction of the cabinet (110) satisfies 0°<α≤90°.

11. The rectifier cabinet (100) according to claim 9, characterized in that: At least two of the plurality of distribution busbars (160) are arranged so that their orthographic projections in the height direction of the cabinet (110) at least partially overlap.

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