An electrical cabinet

Abstract

This invention discloses an electrical cabinet, including a cabinet body, a reactor assembly placed inside the cabinet body, and fasteners. The reactor assembly includes a reactor and a duct cover surrounding the reactor. The reactor is fixedly connected to the bottom of the cabinet body. The upper part of the duct cover has a connecting wall with at least one through hole. The reactor has a connecting portion adapted to fit against the inner surface of the connecting wall, and the connecting portion has connecting holes equal in number and corresponding one-to-one with the through holes. The cabinet body has a connecting beam adapted to fit against the outer surface of the connecting wall, and the connecting beam has locking holes equal in number and corresponding one-to-one with the through holes. The number of fasteners is equal to the number of through holes and corresponds one-to-one. Each fastener is adapted to pass through the corresponding locking hole, through hole, and connecting hole to lock the connecting portion to the connecting beam. The reactor in this application can be fixedly connected to the upper part of the cabinet body, which is convenient to operate. The reactor has good stability and high heat dissipation efficiency.

Description

Technical Field

[0001] This invention relates to the field of electrical technology, and more specifically to an electrical cabinet. Background Technology

[0002] Reactors generally have a certain height. When reactors are used in electrical cabinets, they are usually placed at the bottom of the cabinet and fixed to the bottom of the cabinet due to their heavy weight. In order to ensure the stability of the reactor, it is best to also fix the upper part of the reactor to the cabinet. However, the reactor is usually equipped with an air guide cover. Therefore, it is difficult to fix the upper part of the reactor to the cabinet, which makes the stability of the reactor poor. Summary of the Invention

[0003] The purpose of this invention is to overcome the above-mentioned defects or problems in the background art and provide an electrical cabinet in which the upper part of the reactor can be fixedly connected to the cabinet body and is easy to operate, the reactor has good stability and high heat dissipation efficiency.

[0004] To achieve the above objectives, the present invention and its preferred embodiments employ the following technical solutions, but the embodiments are not limited to the following solutions:

[0005] Technical Solution 1 and its related embodiments provide an electrical cabinet, which includes a cabinet body and a reactor assembly placed inside the cabinet body. The reactor assembly includes a reactor and a duct cover covering the reactor. Both the reactor and the duct cover are fixedly connected to the bottom of the cabinet body, and fasteners are also included. The upper part of the duct cover is provided with a connecting wall, and the connecting wall is provided with at least one through hole. The reactor is provided with a connecting part adapted to fit against the inner surface of the connecting wall, and the connecting part is provided with connecting holes that are equal in number and correspond one-to-one with the number of through holes. The cabinet body is provided with a connecting beam adapted to fit against the outer surface of the connecting wall, and the connecting beam is provided with locking holes that are equal in number and correspond one-to-one with the number of through holes. The number of fasteners is equal to the number of through holes and corresponds one-to-one. Each fastener is adapted to pass through the corresponding locking hole, through hole, and connecting hole to lock the connecting part to the connecting beam.

[0006] Based on technical solution one, there is also technical solution two. In technical solution two and its related embodiments, the length direction of the reactor and the air guide shroud are both in the X-axis direction, and the width direction is both in the Y-axis direction; the connecting wall is perpendicular to the Y-axis direction and has at least two through holes opened in the Y-axis direction along the X-axis direction; the connecting beam is located on one side of the air guide shroud along the Y-axis direction and extends in the X-axis direction.

[0007] Based on technical solution two, there is also technical solution three. In technical solution three and its related embodiments, the reactor is provided with a coil frame, a magnetic core fixed to the coil frame and extending along the vertical Z-axis direction, and a connector fixed to the coil frame. The connector is provided with the connecting part, which is located above the magnetic core and outside the magnetic core.

[0008] Based on technical solution three, there is also technical solution four. In technical solution four and its related embodiments, the number of connectors is two. The two connectors are arranged along the Y-axis and both extend along the X-axis. The connector near the connecting wall is provided with the connecting part, and the connector away from the connecting wall is provided with the lifting part. The connecting part is provided with at least two first lifting holes arranged along the X-axis. The lifting part is provided with at least two second lifting holes arranged along the X-axis.

[0009] Based on technical solution four, technical solution five is also provided. In technical solution five and its related embodiments, the connector is provided with a connecting piece extending along the X-axis and lugs that are equal in number and correspond one-to-one with the through holes. The connecting piece is fixedly connected to the coil frame, and each lug is fixedly connected to the connecting piece. The lugs near the connecting wall form a connecting part, and each lug is provided with a first lifting hole and a connecting hole. The lugs away from the connecting wall form a lifting part, and each lug is provided with a second lifting hole.

[0010] Based on technical solution five, there is also technical solution six. In technical solution six and its related embodiments, the connector is further provided with a bent portion that is equal in number and corresponds one-to-one with the lugs; the connecting piece is located below each lug; the bent portion connects the connecting piece and the corresponding lug and is inclined from bottom to top in the direction away from the magnetic core.

[0011] Based on technical solution three, there is also technical solution seven. In technical solution seven and its related embodiments, the number of connectors is at least two, each connector is arranged along the X-axis and extends along the Y-axis; each connector has an abutment wall perpendicular to the Y-axis at one end near the connecting wall, each abutment wall has a connecting hole, and each abutment wall forms the connecting part.

[0012] Based on technical solution seven, technical solution eight is also provided. In technical solution eight and its related embodiments, the bottom of the coil frame is provided with a base plate fixed to the cabinet, and the top of the coil frame is provided with a support surface; the reactor is also provided with a locking member extending in the vertical direction; the connector is supported on the support surface, and its two ends along the Y-axis direction are fixed to the base plate through the locking member.

[0013] Based on any one of technical solutions three to eight, a technical solution nine is also provided. In technical solution nine and its related embodiments, the air guide shroud has air outlets at both ends along the X-axis that are higher than the magnetic core; the reactor has a first lead-out terminal and a second lead-out terminal that penetrate the air guide shroud and extend out of the air guide shroud on the side away from the connecting wall.

[0014] Based on technical solution one, technical solution ten is also provided. In technical solution ten and its related embodiments, the length direction of the reactor and the air guide shroud are both in the X-axis direction, and the width direction is both in the Y-axis direction; there are two connecting walls, which are located on both sides of the air guide shroud along the X-axis direction, and both are perpendicular to the X-axis direction and have at least two through holes opened along the X-axis direction; there are two connecting beams, which are located on both sides of the air guide shroud along the X-axis direction and both extend along the Y-axis direction.

[0015] As can be seen from the above description of the present invention and its preferred embodiments, compared with the prior art, the technical solution of the present invention and its preferred embodiments have the following beneficial effects due to the adoption of the following technical means:

[0016] Through continuous observation, experimentation, and research, the applicant has determined that the technical problem of "difficulty in fixing the upper part of the reactor to the cabinet" in the existing technical solution stems from the fact that, in addition to the reactor, there are other electrical components at the bottom of the cabinet. Therefore, there is often a gap between the reactor's air guide and the side wall of the cabinet. To fix the upper part of the reactor to the cabinet, a connecting beam must be installed inside the cabinet, penetrating the air guide and fixing it to the upper part of the reactor. However, to ensure the connecting beam can penetrate the air guide, the air guide must be composed of multiple panels. Therefore, during installation, the connecting beam must first penetrate the air guide, and then the connecting beam must be connected to the upper part of the reactor. After the components are fixed in place, the air guide shroud is then assembled, and then fixed to the cabinet. The overall assembly process is cumbersome and difficult. In addition, air leakage is likely to occur at the joints and through the connecting beams. The air guide shroud of the spliced ​​structure inevitably has tolerances, which will further increase air leakage and greatly reduce the heat dissipation efficiency of the reactor. If the side wall of the cabinet is directly made into part of the air guide shroud, although the upper part of the reactor can be fixed to the cabinet, the electrical components inside the electrical cabinet need to be rearranged, which is time-consuming and labor-intensive, and cannot guarantee the heat dissipation efficiency of the electrical components inside the cabinet or the convenience of wiring. This solution is generally not used in the existing technology.

[0017] In technical solution one and its preferred embodiments, the connecting part is adapted to fit against the inner surface of the connecting wall, and the connecting part is provided with a connecting hole. The connecting beam is adapted to fit against the outer surface of the connecting wall and is provided with a locking hole. Fasteners are adapted to pass through the corresponding locking holes, through holes, and connecting holes to lock the connecting part and the connecting beam. Therefore, the entire air guide hood only needs to have a through hole to lock the connecting part and the connecting beam with fasteners, which also locks the connecting wall and the connecting beam. This ensures that the upper part of the reactor and the upper part of the air guide hood are both locked to the cabinet. Compared to the solution where the connecting beam passes through the air guide hood and locks the reactor, the air guide hood does not need to have a through hole for the connecting beam to pass through. This through hole is generally large, and the periphery of the through hole is prone to air leakage. It also eliminates the need for the air guide hood to form a splicing structure, which is also prone to air leakage at the splicing joints. Furthermore, splicing structures have tolerances and complicated assembly steps. More importantly, because the connecting part fits against the inner surface of the connecting wall, the connecting part... The beam fits snugly against the outer surface of the connecting wall, and the through hole in the connecting wall is pierced by fasteners. After the fasteners are tightened, the through hole and its edges are essentially sealed. Therefore, the air guide shroud has good airtightness and high protection, not only easily guiding air but also being waterproof and dustproof. Compared to existing solutions where the connecting beam penetrates the air guide shroud, this technical solution offers higher protection, simpler assembly, and higher reactor heat dissipation efficiency. Compared to solutions where the side wall of the cabinet forms part of the air guide shroud, it eliminates the need to change the layout of electrical components in the electrical cabinet, simplifying installation. Furthermore, this connection method allows for the upper part of the reactor and the upper part of the air guide shroud to be locked to the cabinet from the outside of the air guide shroud, making installation convenient. Because the connecting part fits snugly against the inner surface of the connecting wall, and the connecting beam fits snugly against the outer surface of the connecting wall, this surface-fitting method ensures structural stability after the connecting part and connecting beam are connected, and the connecting wall and connecting beam are connected, thus ensuring the structural stability of the reactor assembly. In addition, the design of the connecting part fully utilizes the reactor's structure, resulting in a simpler structure.

[0018] In technical solution two and its preferred embodiments, the length direction of both the reactor and the air guide shroud is the X-axis direction, and the width direction is the Y-axis direction. The connecting wall is perpendicular to the Y-axis direction and has at least two through holes arranged along the X-axis direction. The connecting beam is located on one side of the air guide shroud along the Y-axis direction and extends along the X-axis direction. Therefore, the reactor can be fixed to the connecting beam on one side along the Y-axis direction. Compared with fixing the connecting beam on one side of the air guide shroud along the X-axis direction, this technical solution has more fixing points for the reactor and the air guide shroud, and the structure is more stable. Compared with fixing the reactor to the connecting beam on both sides along the X-axis direction, the number of connecting beams can be reduced, and the installation of fasteners is more convenient. In addition, it is more conducive to avoiding interference with other electrical components in the cabinet.

[0019] In the third technical solution and its preferred embodiment, the reactor is provided with a coil frame, a magnetic core fixed to the coil frame and extending along the vertical Z-axis direction, and a connector fixed to the coil frame. The connector is provided with a connecting part, which is located above the magnetic core and outside the magnetic core. The connection part is set up by making full use of the structure of the coil frame of the reactor, which is beneficial to processing and also makes it easier for the air guide to avoid the coil of the reactor.

[0020] In technical solution four and its preferred embodiments, there are two connectors, both arranged along the Y-axis and extending along the X-axis. The connector near the connecting wall has a connecting portion, and the connector away from the connecting portion has a lifting portion. The connecting portion also has at least two first lifting holes arranged along the X-axis, allowing the connecting portion to be used for external lifting during reactor installation and for fixing the reactor to the cabinet during reactor installation. In practical applications, the lifting holes are part of the reactor's structure, meaning the connecting portion is part of the reactor's structure. Therefore, the improvement of this application mainly lies in opening connecting holes on the connecting portion, thus achieving a fixed connection between the reactor and the cabinet with minimal improvement. The lifting portion has second lifting holes, creating multiple lifting points above the reactor, which is more conducive to maintaining balance. Furthermore, in practical applications, the identical structure of the two connectors is more conducive to processing and allows the connecting portion to have a larger length in the X-axis direction, thus facilitating the simultaneous formation of lifting holes and connecting holes.

[0021] In technical solution five and its preferred embodiment, the connector is provided with a connecting piece extending along the X-axis and lugs that are equal in number and correspond one-to-one with the through holes. The connecting piece is fixedly connected to the coil frame, and each lug is fixedly connected to the connecting piece. The lugs on the side closer to the connecting wall form a connecting part, and each lug is provided with a first lifting hole and a connecting hole. The lugs on the side farther from the connecting wall form a lifting part, and each lug is provided with a second lifting hole. Compared with the solution where the lugs of each connector are connected as one piece, this is more conducive to processing and saves materials and costs.

[0022] In technical solution six and its preferred embodiments, the connector is further provided with a bent portion that is equal in number and corresponds one-to-one with the lugs; the connecting piece is located below each lug; the bent portion connects the connecting piece and the corresponding lug and is inclined from bottom to top in a direction away from the magnetic core, so that the lugs can be further away from the magnetic core, thereby facilitating the connection portion formed by each lug to fit with the connecting wall and making the air guide cover easier to process and avoid the coil of the reactor.

[0023] In technical solution seven and its preferred embodiments, there are at least two connectors, each connector is arranged along the X-axis and extends along the Y-axis; each connector has an abutment wall at one end near the connecting wall, each abutment wall has a connecting hole, and each abutment wall forms a connecting part, which is simple in structure and easy to process.

[0024] In technical solution eight and its preferred embodiment, the bottom of the coil frame is provided with a base plate fixed to the cabinet, and the top of the coil frame is provided with a support surface; the reactor is also provided with a locking member extending in the vertical direction; the connector is supported on the support surface, and its two ends in the Y-axis direction are fixed to the base plate through the locking member. Therefore, the connector can ensure the vertical clamping of the reactor and improve the stability of the reactor. Each connector has an abutment wall at one end near the connecting wall, and each abutment wall has a connecting hole. Each abutment wall forms a connecting part. Therefore, the setting of the connecting part makes full use of the structure of the reactor itself. The only improvement required is to set an abutment wall at the end of the connector. The structure is simple and easy to process.

[0025] In technical solution nine and its preferred embodiment, the air guide shroud has air outlets at both ends along the X-axis that are higher than the magnetic core; the reactor has a first lead-out terminal and a second lead-out terminal that penetrate the air guide shroud on the side away from the connecting wall. Thus, the various parts of the reactor assembly do not interfere with each other, and the structure is simpler.

[0026] In technical solution ten and its preferred embodiment, the length direction of both the reactor and the air guide shroud is the X-axis direction, and the width direction is the Y-axis direction; there are two connecting walls, which are located on both sides of the air guide shroud along the X-axis direction and are perpendicular to the X-axis direction, and are provided with at least two through holes along the X-axis direction; there are two connecting beams, which are located on both sides of the air guide shroud along the X-axis direction and extend along the Y-axis direction, so that the upper part of the reactor assembly is fixed on both sides along the X-axis direction, which is more conducive to achieving the balance and stability of the reactor assembly. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments are briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a partial schematic diagram of the electrical cabinet in Embodiment 1 of this application;

[0029] Figure 2 for Figure 1 The front view;

[0030] Figure 3 for Figure 2 Sectional view along the AA direction;

[0031] Figure 4 for Figure 3 An enlarged schematic diagram of part A;

[0032] Figure 5This is a schematic diagram of the hidden portion of the air guide shroud of the reactor assembly in Embodiment 1 of this application;

[0033] Figure 6 This is a schematic diagram of the hidden portion of the air guide shroud of the reactor assembly in Embodiment 2 of this application;

[0034] Figure 7 This is a front view of the reactor in Embodiment 3 of this application;

[0035] Figure 8 This is a side view of the reactor in Embodiment 3 of this application.

[0036] Explanation of key figure labels:

[0037] Cabinet 10; Connecting beam 11; Locking hole 111; Air guide hood 20; Connecting wall 21; Through hole 211; Air inlet 22; Air outlet 23; Reactor 30; Coil frame 31; Base plate 311; Support surface 312; Magnetic core 32; Connector 33; Connecting piece 331; Lug 332; Connecting hole 01; First lifting hole 3321; Second lifting hole 3322; Bending part 333; First lead-out terminal 34; Second lead-out terminal 35; Clamping piece 36; Locking piece 37; Lifting piece 38; Lifting hole 02; Abutting wall 334; Pressing wall 335; Fastener 40. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are preferred embodiments of the present invention and should not be considered as excluding other embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0039] Unless otherwise expressly defined, the use of terms such as "first," "second," or "third" in the claims, description, and accompanying drawings of this invention is for distinguishing different objects and not for describing a specific order.

[0040] Unless otherwise expressly defined, in the claims, description, and accompanying drawings of this invention, the use of directional terms such as "center," "lateral," "longitudinal," "horizontal," "vertical," "top," "bottom," "inner," "outer," "upper," "lower," "front," "rear," "left," "right," "clockwise," and "counterclockwise" to indicate orientation or positional relationships is based on the orientation and positional relationships shown in the accompanying drawings and is only for the convenience of describing the invention and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the specific scope of protection of this invention.

[0041] Unless otherwise expressly defined, the terms "fixed connection" or "fixed connection" used in the claims, description and drawings of this invention should be interpreted broadly to refer to any connection in which there is no displacement or relative rotation relationship between the two parties, including non-removable fixed connection, detachable fixed connection, integral connection and fixed connection by other means or components.

[0042] In the claims and the description other than the embodiments, the terms "X-axis direction," "Y-axis direction," and "Z-axis direction" only refer to a feature having one of the aforementioned directions being perpendicular to a feature having another direction, and do not require that they be implemented according to the "X-axis direction," "Y-axis direction," and "Z-axis direction" described in the embodiments. In the embodiments, the X-axis direction is perpendicular to both the Y-axis direction and the Z-axis direction. The X-axis direction can be divided into left and right, the Y-axis direction into front and back, and the Z-axis direction into up and down.

[0043] In the claims, description and accompanying drawings of this invention, the terms "comprising," "having," and variations thereof are used to mean "including but not limited to."

[0044] Example 1

[0045] See Figure 1-5 , Figure 1-5 An electrical cabinet is shown, including a cabinet body 10, a reactor assembly, and fasteners 40.

[0046] The cabinet 10 is rectangular, with its length along the Y-axis, its width along the X-axis, and its height along the Z-axis. Inside the cabinet 10, a connecting beam 11 extending along the X-axis is provided on one side along the Y-axis. The connecting beam 11 is a C-shaped channel steel, and the bottom wall of the channel of the connecting beam 11 is provided with at least one locking hole 111.

[0047] The reactor assembly includes a shroud 20 and a reactor 30.

[0048] See Figure 3-4 The air guide shroud 20 is used to cover the reactor 30. Its length direction is the X-axis direction and its width direction is the Y-axis direction. The bottom of the air guide shroud 20 has a flange that is fixed to the bottom of the cabinet 10. The upper part of the air guide shroud 20 has a connecting wall 21. The connecting wall 21 is perpendicular to the Y-axis direction and has at least two through holes 211 that are opened along the Y-axis direction. In this embodiment, the connecting beam 11 is located on one side of the air guide shroud 20 along the Y-axis direction and the opening of the connecting beam 11 faces away from the air guide shroud 20. The outer surface of the connecting wall 21 is adapted to fit against the outer surface of the groove bottom wall of the connecting beam 11. The number of through holes 211 and locking holes 111 are equal and correspond one-to-one. The bottom of the air guide shroud 20 forms an air inlet 22, and the top of the air guide shroud 20 has air outlets 23 at both ends along the X-axis direction.

[0049] The reactor 30 has its length along the X-axis and its width along the Y-axis. The reactor 30 includes a coil frame 31, a magnetic core 32 fixed to the coil frame 31 and extending along the vertical Z-axis, and a connector 33 fixed to the coil frame 31. The bottom of the coil frame 31 has a base plate 311 fixed to the cabinet 10, thus fixing the bottom of the reactor 30 to the cabinet 10. (See also...) Figure 5 The top of the coil frame 31 is provided with a support surface 312; in this embodiment, there are 3 magnetic cores 32, which are arranged along the X-axis direction. Each magnetic core 32 is wound with a coil, and the magnetic core 32 is lower than the air outlet 23.

[0050] See also Figure 3-5 There are two connectors 33, which are arranged along the Y-axis and extend along the X-axis. Both connectors 33 are fixed to the top of the coil frame 31. In this embodiment, the two connectors 33 are mirror-symmetrical about a plane perpendicular to the Y-axis. The connector 33 near the connecting wall 21 has a connecting portion, and the connector 33 away from the connecting wall 21 has a lifting portion. In this embodiment, both the connecting portion and the lifting portion are sheet-like structures perpendicular to the Y-axis. The connecting portion is adapted to fit against the inner surface of the connecting wall 21 and has connecting holes 01 equal in number and corresponding one-to-one with the through holes 211. The connecting portion is located above and outside the magnetic core 32. Similarly, the lifting portion is also located above and outside the magnetic core 32. The reactor 30 has a first lead-out terminal 34 and a second lead-out terminal 35 that penetrate the air guide shroud 20 and extend outside the air guide shroud 20 on the side away from the connecting wall 21.

[0051] In this embodiment, see Figure 5The connector 33 is provided with a connecting piece 331 extending along the X-axis, a lug 332 in number and corresponding to the through hole 211, and a bending portion 333 in number and corresponding to the lug 332. The connecting piece 331 is fixed to the coil frame 31 and located below the lug 332. The bending portion 333 connects the connecting piece 331 and the corresponding lug 332 and is inclined from bottom to top away from the magnetic core 32. Each lug 332 near the connecting wall 21 forms a connecting portion, and each lug 332 is provided with a first lifting hole 3321 and a connecting hole 01. Each lug 332 away from the connecting wall 21 forms a lifting portion, and each lug 332 is provided with a second lifting hole 3322. Therefore, the connecting part is provided with at least two first lifting holes 3321 arranged along the X-axis and connecting holes 01 that are equal in number and correspond one-to-one with the through holes 211; the lifting part is provided with at least two second lifting holes 3322 arranged along the X-axis. In this embodiment, the number of locking holes 111 and through holes 211 are both two, and each connector 33 is provided with two lugs 332. Therefore, the number of first lifting holes 3321 is two, the number of second lifting holes 3322 is two, and the number of connecting holes 01 is two.

[0052] The reactor 30 is also provided with two clamping members 36 arranged along the X-axis and extending along the Y-axis, and the reactor 30 is also provided with a locking member 37 extending in the vertical direction; the clamping members 36 are supported on the support surface 312, and their two ends along the Y-axis are fixed to the base plate 311 through the locking member 37, thereby improving the stability of the reactor 30 in the Z-axis direction.

[0053] The number of fasteners 40 is equal to the number of through holes 211 and corresponds one-to-one. Each fastener 40 is suitable for passing through the corresponding locking hole 111, through hole 211 and connecting hole 01 to lock the connecting part to the connecting beam 11.

[0054] During installation, place the reactor assembly inside the cabinet 10 and ensure that the outer surface of the connecting wall 21 of the air guide shroud 20 is in contact with the connecting beam 11. First, fix the base plate 311 of the reactor 30 to the cabinet 10, and then fix the flange of the air guide shroud 20 to the cabinet 10. Subsequently, fasteners 40 are inserted through the corresponding locking holes 111, through holes 211 and connecting holes 01 to lock the connection part to the connecting beam 11.

[0055] In this embodiment, the connecting part is adapted to fit against the inner surface of the connecting wall 21, and the connecting part is provided with a connecting hole 01. The connecting beam 11 is adapted to fit against the outer surface of the connecting wall 21 and is provided with a locking hole 111. The fastener 40 is adapted to pass through the corresponding locking hole 111, the through hole 211, and the connecting hole 01 to lock the connecting part and the connecting beam 11. Therefore, the entire air guide shroud 20 only needs to have a through hole 211 to lock the connecting part and the connecting beam 11 with the fastener 40, which also locks the connecting wall 21 and the connecting beam 11. This design allows the upper parts of the reactor 30 and the air guide shroud 20 to be locked to the cabinet 10. Compared to the design where the connecting beam 11 passes through the air guide shroud 20 and locks to the reactor 30, the air guide shroud 20 does not need a through hole for the connecting beam 11 to pass through. This through hole is generally quite large, and the periphery of the through hole is prone to air leakage. Furthermore, the air guide shroud 20 does not need to form a splicing structure, as splicing structures are also prone to air leakage at the splice joints. Splicing structures also have tolerances and complicated assembly steps. More importantly, because the connecting part is in contact with the inner surface of the connecting wall 21, The connecting beam 11 fits against the outer surface of the connecting wall 21. The through hole 211 of the connecting wall 21 is fastened through by fastener 40. After the fastener 40 is tightened, the through hole 211 and its periphery are basically sealed. Therefore, the air guide hood 20 has good airtightness and high protection. It not only easily guides air but also prevents water and dust. Therefore, compared with the existing technology of connecting beam penetrating the air guide hood, this embodiment has higher protection, simpler assembly, and higher heat dissipation efficiency of the reactor 30. Compared with the solution where the side wall of the cabinet 10 forms part of the air guide hood 20, this embodiment has better protection and simpler assembly. In this design, there is no need to change the layout of the electrical components in the electrical cabinet, making it simple and labor-saving. Furthermore, this connection method allows for the locking of the upper part of the reactor 30 and the upper part of the air guide 20 to the cabinet 10 from outside the air guide 20, making installation convenient. Because the connecting part is in contact with the inner surface of the connecting wall 21, and the connecting beam 11 is in contact with the outer surface of the connecting wall 21, this surface-fitting method ensures structural stability after the connecting part and connecting beam 11 are connected, and the connecting wall 21 and connecting beam 11 are connected, thus ensuring the structural stability of the reactor assembly. In addition, the design of the connecting part fully utilizes the structure of the reactor 30, resulting in a simpler structure.

[0056] In this embodiment, the length direction of the reactor 30 and the air guide hood 20 are both in the X-axis direction, and the width direction is both in the Y-axis direction. The connecting wall 21 is perpendicular to the Y-axis direction and has at least two through holes 211 arranged along the X-axis direction. The connecting beam 11 is located on one side of the air guide hood 20 along the Y-axis direction and extends along the X-axis direction. Therefore, the reactor 30 can be fixed to the connecting beam 11 on one side along the Y-axis direction. Compared with the air guide hood 20 being fixed to the connecting beam 11 on one side along the X-axis direction, this technical solution has more fixing points for the reactor 30 and the air guide hood 20, and the structure is more stable. Compared with the reactor 30 being fixed to the connecting beam 11 on both sides along the X-axis direction, the number of connecting beams 11 can be reduced, which makes it easier to install the fasteners 40. In addition, it is more conducive to avoiding other electrical components in the cabinet 10.

[0057] In this embodiment, the reactor 30 is provided with a coil frame 31, a magnetic core 32 fixed to the coil frame 31 and extending along the vertical Z-axis direction, and a connector 33 fixed to the coil frame 31. The connector 33 is provided with a connecting part, which is located above the magnetic core 32 and outside the magnetic core 32. The connection part is set up by making full use of the structure of the coil frame 31 of the reactor 30, which is beneficial to the processing and also makes it easier for the air guide shroud 20 to avoid the coil of the reactor 30.

[0058] In this embodiment, there are two connectors 33, which are arranged along the Y-axis and extend along the X-axis. The connector 33 near the connecting wall 21 has a connecting portion, and the connector 33 away from the connecting portion has a lifting portion. The connecting portion also has at least two first lifting holes 3321 arranged along the X-axis, allowing the connecting portion to be used for external lifting of the reactor 30 during installation, and to secure the reactor 30 to the cabinet 10 during installation. In practical applications, the lifting holes are... The structure of the reactor 30 itself, that is, the connecting part is the structure of the reactor 30 itself, so the improvement of this application is mainly to open the connecting hole 01 on the connecting part, thereby realizing the fixed connection between the reactor 30 and the cabinet 10 with minimal improvement; the lifting part is provided with a second lifting hole 3322, so that multiple lifting points are formed above the reactor 30, which is more conducive to maintaining balance; in addition, in practical applications, the two connecting parts 33 have the same structure, which is more conducive to processing, and it is also conducive to the connecting part having a larger length in the X-axis direction, which is conducive to forming both the lifting hole and the connecting hole 01 at the same time.

[0059] In this embodiment, the connector 33 is provided with a connecting piece 331 extending along the X-axis and lugs 332 that are equal in number and correspond one-to-one with the through holes 211. The connecting piece 331 is fixedly connected to the coil frame 31, and each lug 332 is fixedly connected to the connecting piece 331. The lugs 332 on the side closer to the connecting wall 21 form a connecting part, and each lug 332 is provided with a first lifting hole 3321 and a connecting hole 01. The lugs 332 on the side away from the connecting wall 21 form a lifting part, and each lug 332 is provided with a second lifting hole 3322. Compared with the solution where the lugs 332 of each connector 33 are connected as one piece, this is more conducive to processing and saves materials and costs.

[0060] In this embodiment, the connector 33 is also provided with a bending portion 333 that is equal in number and corresponds one-to-one with the lugs 332. The connecting piece 331 is located below each lug 332. The bending portion 333 connects the connecting piece 331 and the corresponding lug 332 and is inclined from bottom to top in a direction away from the magnetic core 32, so that the lugs 332 can be further away from the magnetic core 32. This makes it easier for the connecting portion formed by each lug 332 to fit with the connecting wall 21 and makes the air guide shroud 20 easier to process and avoid the coil of the reactor 30.

[0061] In this embodiment, the air guide shroud 20 has air outlets 23 at both ends along the X-axis that are higher than the magnetic core 32; the reactor 30 has a first lead-out terminal 34 and a second lead-out terminal 35 that penetrate the air guide shroud 20 on the side away from the connecting wall 21. Thus, the various parts of the reactor assembly do not interfere with each other, and the structure is simpler.

[0062] Example 2

[0063] This embodiment has a basically the same structure as Embodiment 1, except that, see [link to Embodiment 1]. Figure 6 In this embodiment, the connector in Example 1 is a lifting member 38, which serves to provide a lifting hole 02. In this embodiment, the connector 33 does not extend along the X-axis direction, and there are at least two connectors 33. Each connector 33 is arranged along the X-axis direction and extends along the Y-axis direction. Each connector 33 has an abutment wall 334 perpendicular to the Y-axis direction at one end near the connecting wall 21. Each abutment wall 334 has a connecting hole 01, and each abutment wall 334 forms a connecting part. The connector 33 is supported on the supporting surface 312, and its two ends along the Y-axis direction are fixed to the base plate 311 by locking members 37. That is to say, the connector 33 in this embodiment is formed by a clamping member 36, but the end of the clamping member 36 near the connecting wall 21 is closed and forms an abutment wall 334.

[0064] In this embodiment, each connector 33 has an abutment wall 334 at one end near the connecting wall 21, and each abutment wall 334 has a connection hole 01. Each abutment wall 334 forms a connection part, which is simple in structure and easy to process. The connector 33 can ensure the vertical clamping of the reactor 30 and improve the stability of the reactor 30. Since the connection part makes full use of the structure of the reactor 30 itself, the only improvement required is to set the abutment wall 334 at the end of the connector 33, which is simple in structure and easy to process.

[0065] Example 3

[0066] This embodiment is basically the same in structure as Embodiment 1, except that there are two connecting walls 21, which are located on both sides of the air guide hood 20 along the X-axis and are both perpendicular to the X-axis and have at least two through holes 211 along the X-axis; there are also two connecting beams 11, which are located on both sides of the air guide hood 20 along the X-axis and extend along the Y-axis. In this case, the connecting member 33 is basically the same as in Embodiment 1, except that... (See...) Figure 7-8 The lugs 332 of the connector 33 are provided with only lifting holes 02, but not connecting holes 01. Each connector 33 has a pressure wall 335 perpendicular to the X-axis at both ends along the X-axis, and a connecting hole 01 is formed on each pressure wall 335. The pressure walls 335 on the same side of each connector 33 along the X-axis form a connecting part. In this embodiment, the upper part of the reactor assembly is fixed on both sides along the X-axis, which is more conducive to achieving the balance and stability of the reactor assembly.

[0067] The foregoing description of the specifications and embodiments is intended to explain the scope of protection of this invention, but does not constitute a limitation on the scope of protection of this invention. Modifications, equivalent substitutions, or other improvements to the embodiments of this invention or a portion thereof that can be obtained by those skilled in the art through logical analysis, reasoning, or limited experimentation, based on the teachings of this invention or the foregoing embodiments, in conjunction with common knowledge, general technical knowledge, and / or existing technology, should all be included within the scope of protection of this invention.

Claims

1. An electrical cabinet comprising a cabinet body (10) and a reactor assembly disposed within the cabinet body (10), the reactor assembly comprising a reactor (30) and an air guide shroud (20) covering the reactor (30), the reactor (30) and the air guide shroud (20) being fixedly connected to the bottom of the cabinet body (10), characterized in that, It also includes fasteners (40); The upper part of the air guide shroud (20) is provided with a connecting wall (21), and the connecting wall (21) is provided with at least one through hole (211); the reactor (30) is provided with a connecting part suitable for fitting with the inner surface of the connecting wall (21), and the connecting part is provided with connecting holes (01) that are equal in number and correspond one-to-one with the through holes (211); The cabinet (10) is provided with a connecting beam (11) suitable for fitting with the outer surface of the connecting wall (21). The connecting beam (11) is provided with locking holes (111) that are equal in number and correspond one-to-one with the through holes (211). The number of fasteners (40) is equal to the number of through holes (211) and corresponds one-to-one. Each fastener (40) is adapted to pass through the corresponding locking hole (111), through hole (211) and connecting hole (01) to lock the connecting part to the connecting beam (11).

2. An electrical cabinet as described in claim 1, characterized in that, The reactor (30) and the air guide shroud (20) are both in the X-axis direction in length and in the Y-axis direction in width; the connecting wall (21) is perpendicular to the Y-axis direction and has at least two through holes (211) in the Y-axis direction; the connecting beam (11) is located on one side of the air guide shroud (20) in the Y-axis direction and extends in the X-axis direction.

3. An electrical cabinet as described in claim 2, characterized in that, The reactor (30) is provided with a coil frame (31), a magnetic core (32) fixed to the coil frame (31) and extending along the vertical Z-axis direction, and a connector (33) fixed to the coil frame (31). The connector (33) is provided with the connecting part, which is located above the magnetic core (32) and outside the magnetic core (32).

4. An electrical cabinet as described in claim 3, characterized in that, The number of connectors (33) is two, and the two connectors (33) are arranged along the Y-axis and both extend along the X-axis; the connector (33) near the connecting wall (21) is provided with the connecting part, and the connector (33) away from the connecting wall (21) is provided with the hoisting part; the connecting part is provided with at least two first hoisting holes (3321) arranged along the X-axis; the hoisting part is provided with at least two second hoisting holes (3322) arranged along the X-axis.

5. An electrical cabinet as described in claim 4, characterized in that, The connector (33) is provided with a connecting piece (331) extending along the X-axis and lugs (332) that are equal in number and correspond one-to-one with the through holes (211). The connecting piece (331) is fixedly connected to the coil frame (31), and each lug (332) is fixedly connected to the connecting piece (331). Each lug (332) near the connecting wall (21) forms a connecting part, and each lug (332) is provided with a first lifting hole (3321) and a connecting hole (01). Each lug (332) away from the connecting wall (21) forms a lifting part, and each lug (332) is provided with a second lifting hole (3322).

6. An electrical cabinet as described in claim 5, characterized in that, The connector (33) is also provided with a number of bent portions (333) that are equal to and correspond one-to-one with the lugs (332); the connecting piece (331) is located below each lug (332); the bent portion (333) connects the connecting piece (331) and the corresponding lug (332) and is inclined from bottom to top in a direction away from the magnetic core (32).

7. An electrical cabinet as described in claim 3, characterized in that, The number of connectors (33) is at least two, each connector (33) is arranged along the X-axis and extends along the Y-axis; each connector (33) has an abutment wall (334) perpendicular to the Y-axis at one end near the connecting wall (21), each abutment wall (334) has a connecting hole (01), and each abutment wall (334) forms the connecting part.

8. An electrical cabinet as described in claim 7, characterized in that, The bottom of the coil frame (31) is provided with a base plate (311) fixed to the cabinet (10), and the top of it is provided with a support surface (312); the reactor (30) is also provided with a locking member (37) extending in the vertical direction; the connector (33) is supported on the support surface (312), and its two ends along the Y-axis direction are fixed to the base plate (311) through the locking member (37).

9. An electrical cabinet as described in any one of claims 3-8, characterized in that, The air guide shroud (20) has air outlets (23) at both ends along the X-axis that are higher than the magnetic core (32); the reactor (30) has a first lead-out terminal (34) and a second lead-out terminal (35) on the side away from the connecting wall (21) that penetrate the air guide shroud (20) and extend out of the air guide shroud (20).

10. An electrical cabinet as described in claim 1, characterized in that, The reactor (30) and the air guide shroud (20) are both in the X-axis direction in length and in the Y-axis direction in width. There are two connecting walls (21), which are located on both sides of the air guide shroud (20) along the X-axis direction and are perpendicular to the X-axis direction and have at least two through holes (211) in the X-axis direction. There are two connecting beams (11), which are located on both sides of the air guide shroud (20) along the X-axis direction and extend along the Y-axis direction.

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