A liquid-cooled, leak-proof electrical enclosure and electrical device

Abstract

This utility model discloses a liquid-cooled, leak-proof electrical enclosure and electrical device. The electrical enclosure includes: a shell, which is formed by a bottom wall, side walls, and a top cover to create an installation chamber, with a recessed portion at the junction of the bottom wall and side walls to isolate it from the installation chamber; an opening extending vertically through the bottom wall; and a liquid-cooled radiator, which is fixed to the bottom of the shell and whose upper surface protrudes into the installation chamber through the opening, and has an upwardly extending flow channel for communicating with an external pipe, the flow channel being accommodated within the recessed portion. This enclosure can improve the sealing and leakage problems existing in existing enclosures with liquid-cooled radiators.

Description

Technical Field

[0001] This utility model relates to the field of liquid-cooled chassis technology, specifically to a liquid-cooled leak-proof electrical chassis and electrical device. Background Technology

[0002] Existing electrical installations, such as integrated energy storage converters and boost converters, house power components, heat sinks, and related electrical devices within their enclosures. The power components typically include power transistors or switching transistors and are positioned in close contact with the heat sink's surface to ensure effective heat dissipation. When liquid-cooled heat sinks are used, the electrical installation can achieve a more compact structure and size, effectively reducing the overall volume and footprint of the electrical cabinet used to house it, thus contributing to increased power density in energy storage sites or related application environments.

[0003] Generally speaking, when a liquid cooler is installed inside the computer case, there are usually two solutions to facilitate the connection between the cooler's nozzles and the external coolant delivery pipes:

[0004] The first method is to pass the water nozzle through the chassis wall. This method requires adding a sealing structure at the point where the water nozzle passes through, which increases costs and makes it difficult to achieve the required sealing effect.

[0005] The second method involves using a connecting pipe to link the water nozzle inside the chassis to another water nozzle located on the chassis, and then connecting the coolant delivery pipes through the water nozzle on the chassis. Besides increasing costs, this method is prone to leaks at the connection points between the water nozzle on the chassis and the water nozzle on the liquid cooler, potentially damaging electrical components inside the chassis.

[0006] Therefore, the use of liquid-cooled radiators in electrical installations still requires overcoming the aforementioned problems of poor sealing and leakage. Utility Model Content

[0007] The purpose of this utility model is to overcome the above-mentioned defects or problems in the background art and provide a liquid-cooled leak-proof electrical enclosure and electrical device. This enclosure can improve the problems of poor sealing and leakage in existing enclosures equipped with liquid-cooled heat sinks.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] Technical Solution 1: A liquid-cooled, leak-proof electrical enclosure, comprising: a shell, which is formed by a bottom wall, side walls, and a top cover to form an installation chamber, and a recessed relief portion is provided at the junction of the bottom wall and side walls to isolate it from the installation chamber; the bottom wall has an opening extending through it in the vertical direction; and a liquid-cooled radiator, which is fixed to the bottom of the shell and its upper surface is exposed in the installation chamber through the opening, and has an upwardly extending flow channel connecting portion for communicating with an external pipe, the flow channel connecting portion being accommodated in the relief portion.

[0010] Technical Solution 2 based on Technical Solution 1: The flow channel connecting part is flush with or located behind the side wall of the yielding part.

[0011] Technical Solution 3 based on Technical Solution 2: The opening direction of the flow channel connecting part is horizontally oriented towards the outside of the shell.

[0012] Technical solution four, based on technical solution three, also includes a quick-connect fitting suitable for detachable and sealed connection with an external pipeline, wherein the quick-connect fitting is installed at the opening of the flow channel connection and faces horizontally toward the outside of the housing.

[0013] Technical solution five based on technical solution four: The quick connector of the flow channel protrudes from the side wall of the clearance portion where the flow channel connecting portion to which it is connected is located.

[0014] Technical solution six based on technical solution five: the number of flow channel connecting parts is two, which are arranged at a preset distance along the first horizontal direction and are used for inputting and outputting coolant respectively, and the two are located on the same side of the liquid-cooled radiator in the second horizontal direction that is perpendicular to the first direction.

[0015] Technical solution seven based on technical solution six further includes a connector; along both sides of the first direction, the portion of the bottom wall located between the opening and the side wall forms a first flange; the connector is provided with two connecting units along the first direction; the connecting unit extends along the second direction and is provided with an upwardly extending first connecting portion and a second connecting portion extending horizontally inward relative to the housing, the first connecting portion is fixed to the housing, and the second connecting portion cooperates with the corresponding first flange to form a fixed space; the two side edges of the liquid cooling radiator in the first direction are placed in the fixed space and abut against the corresponding first flange and the second connecting portion, and are fixed to the first flange and / or the second connecting portion at least in the second direction.

[0016] Technical solution eight based on technical solution seven: the side walls of the housing on both sides along the first direction are bent toward the inside of the housing at positions corresponding to the first connecting portions of the two connecting units to form reinforcing portions, and the first connecting portions are fixed to the corresponding reinforcing portions.

[0017] Technical solution nine, based on technical solution one, also includes a breathing valve, which is installed on the housing and used to balance the air pressure inside and outside the housing.

[0018] In addition, this utility model also provides technical solution ten: an electrical device, which includes a plurality of electrical components, and further includes a liquid-cooled leak-proof electrical enclosure as described in any one of technical solutions one to nine, wherein at least a portion of the electrical components are attached to the surface of the liquid-cooled radiator exposed from the opening on the bottom wall of the enclosure.

[0019] As can be seen from the above description of this utility model, compared with the prior art, this utility model has the following beneficial effects:

[0020] Technical solution one provides a liquid-cooled, leak-proof electrical enclosure. The enclosure has a mounting chamber and a recessed clearance portion at the junction of the bottom and side walls, isolating it from the mounting chamber. A through opening is provided on the bottom wall. A liquid-cooled radiator is fixed to the bottom of the enclosure, its upper surface protruding into the mounting chamber through the opening. The liquid-cooled radiator has an upwardly extending flow channel connecting portion, which is accommodated within the clearance portion. By accommodating the flow channel connecting portion within the clearance portion and isolating it from the chamber, the pipe connection points most prone to leakage are physically isolated outside the main mounting chamber. Even in the event of a leak, the coolant is confined within the clearance portion and will not directly enter the main chamber where the electrical components are installed, thus achieving the core objective of leak-proof protection of the electrical components. Furthermore, this technology is based on an improvement in the overall chassis assembly structure where the liquid cooler is fixed to the bottom of the housing. This improvement allows the flow channel connector to be located outside the housing. However, this design also presents the problem of the flow channel connector protruding from the housing. Therefore, the aforementioned clearance portion is provided on the housing. After the flow channel connector is accommodated in this clearance portion, it can be housed within it, thus improving the problem of the flow channel connector protruding too much. Moreover, the upward-extending design of the flow channel connector, compared to a horizontally extended design, is not affected by the thickness of the liquid cooler, allowing for a larger flow channel connector size and thus increasing the liquid flow area. The design of the radiator being at the bottom, with its upper surface exposed through an opening, ensures that the main heat dissipation surface of the radiator can effectively contact the heat-generating components in the mounting chamber, ensuring heat dissipation efficiency. The recessed design of the clearance portion also minimizes or eliminates its use of external chassis space, resulting in a more compact structure. Overall, the liquid-cooled leak-proof electrical enclosure provided by this technical solution directly places the flow channel connection part on the outside of the shell, and improves the shell and liquid cooling radiator based on this setting, thereby improving the sealing and leakage problems of liquid cooling radiators in existing electrical enclosures.

[0021] In technical solution two, the flow channel connecting part is flush with or located behind the side wall of the clearance part, so that the flow channel connecting part does not protrude from the outline of the chassis side wall, avoiding the risk of accidental collision damage to the flow channel connecting part during transportation and installation, and improving the reliability and safety of the structure. Furthermore, when the flow channel connecting part is located on the front side of the electrical chassis, this location usually requires the installation of components such as sockets and panels. The above structural design can reduce interference with wiring at this location, allowing for a more compact overall layout of the electrical chassis.

[0022] In technical solution three, the opening of the flow channel connection is horizontally oriented towards the outside of the housing. This horizontal outward orientation facilitates the access of external coolant pipes from the side, which is particularly advantageous when the cabinets are installed side-by-side or when space is limited, simplifying the piping layout and installation operations. Compared to a vertical orientation, it also reduces the possibility of dust or debris falling directly into the opening.

[0023] In technical solution four, a quick-connect fitting for the flow channel is added. This quick-connect fitting is installed at the opening of the flow channel connection and faces horizontally outwards from the housing, for detachable and sealed connection with external pipelines. The introduction of the quick-connect fitting makes connecting and disconnecting external pipelines quick and convenient without tools or complex operations, greatly improving installation and maintenance efficiency.

[0024] In technical solution five, the quick connector protrudes from the side wall of the clearance portion where the connected flow channel is located, providing better operating space and making it easier for fingers or tools to access and operate the quick connector for connection or disconnection, further improving maintainability.

[0025] In technical solution six, there are two flow channel connecting parts, which are arranged at intervals along the first horizontal direction and located on the same side of the radiator in the second direction perpendicular to the first direction. This facilitates the entry and exit of coolant into and out of the liquid-cooled radiator, while providing sufficient space to connect external pipes. It also allows the inlet and outlet pipes of the external pipes to be led out from the same side of the chassis, greatly simplifying the layout of external pipes, making the pipes neater, and reducing crossings and bends.

[0026] In technical solution seven, a fixed space is formed by the first flange on the bottom wall of the housing and a specially designed connector to clamp and position the two sides of the liquid cooling plate. This installation method firmly fixes the liquid cooling radiator to the bottom of the chassis, ensuring the stability and accuracy of the installation.

[0027] In technical solution eight, a second flange is provided on both sides of the bottom wall of the housing in the second direction. Although there is no corresponding connecting unit to form a fit with the second flange, when the liquid cooler is installed to the housing through the connector, the liquid cooler will be limited by the second flange in the vertical direction, so that the housing and the liquid cooler can form a limiting fit in the circumferential direction of the opening, and the housing can sit more stably on the liquid cooler.

[0028] In technical solution nine, a reinforcing section is formed by bending the sidewall of the casing. This significantly improves the bending strength and rigidity of the sidewall, enhances the overall structural stability of the chassis, effectively resists external pressure and impact, and prevents chassis deformation. Simultaneously, the reinforcing section disperses the force from the connectors over a wider area of ​​the sidewall, reducing stress concentration and thus improving the chassis's load-bearing capacity. Furthermore, fixing the first connecting part of the connector to the reinforcing section provides a more stable connection point, strengthening the link between the connector and the casing.

[0029] Technical solution ten provides an electrical device that uses the aforementioned liquid-cooled, leak-proof electrical enclosure, which can provide good heat dissipation while improving leak-proof performance and protecting internal electrical components. Attached Figure Description

[0030] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is an exploded view of the electrical enclosure according to an embodiment of the present utility model;

[0032] Figure 2 This is a schematic diagram of the assembly state of the electrical chassis according to an embodiment of the present utility model;

[0033] Figure 3 for Figure 2 A top view of the electrical enclosure;

[0034] Figure 4 for Figure 1 A top view of the casing of the electrical control panel;

[0035] Figure 5 for Figure 3 Schematic diagram of section AA;

[0036] Figure 6 for Figure 3 Schematic diagram of the BB section;

[0037] Figure 7 for Figure 1 An enlarged schematic diagram of part A in the middle;

[0038] Figure 8 for Figure 1 Enlarged schematic diagram of part B in the middle;

[0039] Figure 9 for Figure 1 An enlarged schematic diagram of section C;

[0040] Figure 10 for Figure 5 An enlarged schematic diagram of section D in the middle;

[0041] Figure 11 for Figure 6 An enlarged schematic diagram of section E in the middle.

[0042] Explanation of key figure labels:

[0043] 10 housing; 11 bottom wall; 12 side wall; 121 reinforcing part; 13 opening; 14 first flange; 15 second flange; 16 top cover; 17 clearance part;

[0044] Connector 20; Connecting unit 21; First connecting part 22; Second connecting part 23;

[0045] Liquid-cooled radiator 30; liquid-cooled plate 31; flow channel connecting part 32; connecting opening 321; flow channel quick connector 33;

[0046] Fastener 40; Fixing unit 41; Third connecting part 42; Fourth connecting part 43; First limiting part 44; Accessory mounting hole 45; Lifting part 46; Lifting hole 461;

[0047] Positioning component 50; Second limiting part 51;

[0048] Guide strip 60. Detailed Implementation

[0049] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are preferred embodiments of the present utility model 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 utility model without creative effort are within the scope of protection of the present utility model.

[0050] Unless otherwise expressly defined, the use of terms such as "first," "second," or "third" in the claims, description, and drawings of this utility model is for distinguishing different objects and not for describing a specific order.

[0051] Unless otherwise expressly defined, in the claims, description, and accompanying drawings of this utility model, 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 this utility model and simplifying the description. It does not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the specific protection scope of this utility model.

[0052] Unless otherwise expressly defined, the terms "fixed connection" or "fixed connection" used in the claims, description and drawings of this utility model shall 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 through other devices or components.

[0053] In the claims, description and accompanying drawings of this utility model, the terms "comprising," "having," and variations thereof are used to mean "including but not limited to."

[0054] Example 1

[0055] Embodiment 1 of this utility model relates to a liquid-cooled, leak-proof electrical enclosure. This electrical enclosure can be used to install electrical components and can be used in conjunction with electrical components to form an electrical device. The specific type of electrical device can be selected according to actual needs, and the corresponding electrical components or related accessories can be selected.

[0056] The electrical chassis involved in this embodiment includes a shell 10, a connector 20, a liquid cooling radiator 30, a fixing component 40, and a positioning component 50. Through the combination of the above-mentioned components, compared with conventional chassis with liquid cooling function, this electrical chassis can effectively reduce the overall weight of the chassis while providing good heat dissipation for the internal electrical components.

[0057] Reference Figure 1 In the electrical enclosure of this embodiment, the housing 10 is formed by the cooperation of the bottom wall 11, the side wall 12 and the top cover 16 to form an installation chamber, and a recessed relief portion 17 is provided at the junction of the bottom wall 11 and the side wall 12 to isolate it from the installation chamber; the bottom wall 11 is provided with an opening 13 through it in the vertical direction; the liquid cooling radiator 30 is fixed to the bottom of the housing 10 and its upper surface is exposed in the installation chamber through the opening 13, and it is provided with a flow channel connecting portion 32 that extends upward and is used to communicate with an external pipe, and the flow channel connecting portion 32 is accommodated in the relief portion 17.

[0058] Wherein, along both sides of the first direction, the portion of the bottom wall 11 located between the opening 13 and the side wall 12 forms a first flange 14; the connector 20 is provided with two connecting units 21 along the first direction; the connecting unit 21 extends along the second direction and is provided with an upwardly extending first connecting portion 22 and a second connecting portion 23 extending horizontally inward relative to the housing 10, the first connecting portion 22 is fixed to the housing 10, and the second connecting portion 23 cooperates with the corresponding first flange 14 to form a fixed space; the two side edges of the liquid cooling radiator 30 in the first direction are placed in the fixed space and abut against the corresponding first flange 14 and the second connecting portion 23, and are fixed to the first flange 14 and / or the second connecting portion 23 at least in the second direction.

[0059] Furthermore, along both sides of the second direction, the portion of the bottom wall 11 located between the opening 13 and the side wall 12 forms a second flange 15, and the liquid-cooled radiator 30 abuts against the second flange 15 upward along both sides of the second direction.

[0060] Specifically, refer to Figure 1 and Figure 2 , Figure 1 This is an exploded schematic diagram of the electrical enclosure. Figure 2 This is a schematic diagram of the assembled state of the electrical enclosure. In this embodiment, directions in this specification and claims are described by the front, back, left, right, up, and down directions shown in the accompanying drawings. Specifically, the first direction in the claims refers to the left-right direction in this embodiment, the second direction refers to the front-back direction, and the up-down direction refers to the up-down direction. The electrical enclosure in this embodiment has a rectangular parallelepiped shape, and therefore has six sides corresponding to this shape.

[0061] Reference Figure 1 and Figure 4 The housing 10 has a bottom wall 11 and side walls 12 that are interconnected. The bottom wall 11 is located below the housing 10 and extends horizontally. The side walls 12 are located on the side of the housing 10, and their lower edges are connected to the peripheral edges of the bottom wall 11. In this embodiment, according to the cuboid configuration of the electrical chassis, the side walls 12 can be divided into a front side wall 12, a rear side wall 12, a left side wall 12, and a right side wall 12. In this embodiment, the front side wall 12 of the electrical chassis can be used to install and fix the wiring terminals of electrical components inside the chassis, and these terminals protrude from the front side wall 12 to facilitate connection with other external components via cables. In addition, the housing 10 also includes a top cover 16. The bottom wall 11 and the side walls 12 cooperate to form a mounting chamber. The top cover 16 covers the mounting chamber to close it. The bottom of the mounting chamber is closed by a liquid cooling plate 31.

[0062] At the middle of the bottom wall 11 of the housing 10, there is a vertically penetrating opening 13. This opening 13 occupies most of the bottom wall 11, thus forming a large area of ​​hollowing out on the bottom wall 11. At the same time, at the periphery of the bottom wall 11, through the opening 13, the remaining part of the bottom wall 11 forms a flange structure defined by the opening 13 and the side wall 12. The flange structure is divided into a first flange 14 and a second flange 15 according to different positions. The first flange 14 is the flange in the left-right direction of the bottom wall 11, and the second flange 15 is the flange in the front-back direction of the bottom wall 11.

[0063] Reference Figure 1 The connector 20 includes two connecting units 21, which are metal profiles in this embodiment. Each of the two connecting units 21 extends in the front-to-back direction and is arranged in the left-to-right direction, thereby allowing them to engage with the left and right edges of the housing 10. (Refer to...) Figure 7 , it is Figure 1 The enlarged schematic diagram of section A shows the specific structure of the connecting unit 21. The connecting unit 21 has a first connecting portion 22 and a second connecting portion 23. In cross-section, the connecting unit 21 has an "L" shape, with the first connecting portion 22 extending vertically and the second connecting portion 23 extending horizontally. The lower edge of the first connecting portion 22 connects to the outer edge of the second connecting portion 23 relative to the housing 10. For the connecting unit 21 located on the right side of the housing 10, the second connecting portion 23 extends from right to left; for the connecting unit 21 located on the left side of the housing 10, the second connecting portion 23 extends from left to right. In other words, for any connecting unit 21, the second connecting portion 23 starts from the lower edge of the first connecting portion 22 and extends towards the location of the housing 10.

[0064] Reference Figure 3 , Figure 5 and Figure 10 ,in Figure 10 for Figure 5 An enlarged schematic diagram of section C. The first connecting part 22 of the connecting unit 21 is fixed to the side wall 12 of the housing 10 by a threaded fastener, and the second connecting part 23 extends into the bottom wall 11 of the housing 10. At this time, the second connecting part 23 and the first flange 14 of the bottom wall 11 can cooperate to form a fixed space with a certain size in the vertical direction. In this embodiment, the size of the fixed space in the vertical direction is adapted to the thickness of the liquid cooling radiator 30. In addition, refer to Figure 1 and Figure 6The bottom of the second connecting part 23 is also provided with a guide strip 60. The guide strip 60 can be made of a relatively smooth surface such as epoxy board, thereby reducing the friction between the chassis and the surface of the rack such as the slide rails on the rack during the installation process, making it easier to load the chassis. In addition, the first flange 14 of the bottom wall 11 of the housing 10 cooperates with the specially designed connector 20 to form a fixed space to clamp and position the two sides of the liquid cooling plate 31. This installation method firmly fixes the liquid cooling radiator 30 to the bottom of the chassis housing 10, ensuring the stability and accuracy of the installation.

[0065] Among them, reference Figure 1 and Figure 11 At the junction of the bottom wall 11 and the front side wall 12 of the housing 10, two inwardly recessed relief portions 17 are provided. The relief portions 17 form notches on the front side wall 12 and on the bottom wall 11. These two notches are interconnected. At the same time, a closed partition is provided inside the relief portions 17, which separates the relief portions 17 from the mounting chamber inside the housing 10.

[0066] Reference Figure 1 In this embodiment, the liquid-cooled radiator 30 includes a liquid-cooling plate 31, a flow channel connecting portion 32, and a flow channel quick connector 33. The liquid-cooling plate 31 is the main body of the liquid-cooled radiator 30; it is a plate-shaped component with a certain thickness that is adapted to the shape of the housing 10, and is used for installation in the aforementioned fixed space. The liquid-cooling plate 31 has a continuous coolant flow channel inside, and the aforementioned flow channel connecting portion 32 is provided on its front side, as shown in the figure. Figure 9 and Figure 11 The flow channel connecting portion 32 is a piece-shaped structure directly welded to the upper surface of the liquid cooling plate 31. Inside the flow channel connecting portion 32 is a channel for conveying coolant. One end of this channel connects to the coolant flow channel on the liquid cooling plate 31, and the other end forms a connecting opening 32113 on the flow channel connecting portion 32, connecting to an external pipe. In this embodiment, the opening 13 of the flow channel connecting portion 32 faces horizontally outwards from the outer side of the housing 10, that is, the direction of the connecting opening 32113 of the flow channel connecting portion 32 faces the front side of the chassis. It can be considered that the channel inside the flow channel connecting portion 32 extends upwards from the liquid cooling plate 31, bends forward, and continues to extend. The position of the flow channel connecting portion 32 corresponds to the position of the clearance portion 17 on the housing 10, and it is placed within the aforementioned clearance portion 17.

[0067] Furthermore, in this embodiment, there are two flow channel connecting portions 32, which are arranged at a predetermined distance along a horizontal first direction and are respectively used for inputting and outputting coolant, and are located on the same side of the liquid-cooled radiator 30 in a horizontal second direction perpendicular to the first direction. Specifically, refer to... Figure 1Both flow channel connecting parts 32 are located on the front side of the liquid cooling plate 31, and these two flow channel connecting parts 32 are respectively located close to the left side wall 12 and the right side wall 12 of the housing 10. This can separate the inlet and outlet of the coolant flow channel on the liquid cooling plate 31 as far as possible, making it convenient for coolant to enter and exit the liquid cooling radiator 30. At the same time, there is enough space to connect external pipes, and the inlet and outlet pipes in the external pipes can be led out from the same side of the chassis, which greatly simplifies the layout of external pipes, makes the pipes neater, and reduces crossings and bends.

[0068] In another aspect of the electrical chassis involved in this embodiment, the flow channel connecting portion 32 is flush with or located behind the side wall 12 at the clearance portion 17. Specifically, refer to... Figure 11 The front surface of the flow channel connecting part 32 is approximately flush with the front side wall 12 of the housing 10, ensuring that the flow channel connecting part 32 does not protrude from the outline of the chassis side wall 12. This avoids the risk of accidental collision damage to the flow channel connecting part 32 during transportation and installation, improving the reliability and safety of the structure. Furthermore, when the flow channel connecting part 32 is located at the front of the electrical chassis, this location typically requires the installation of components such as sockets and panels. The aforementioned structural design reduces interference with wiring at this location, allowing for a more compact overall layout of the electrical chassis.

[0069] The quick-connect coupling 33 is adapted for detachable and sealing connection with an external pipe, and it is installed in the opening 13 of the flow channel connection 32 and faces horizontally outward from the housing 10. The introduction of the quick-connect coupling makes connecting and disconnecting external pipes quick and easy without tools or complex operations, greatly improving installation and maintenance efficiency. Furthermore, the quick-connect coupling 33 protrudes from the sidewall 12 of the clearance portion 17 where the flow channel connection 32 is located. This provides better operating space, making it easier for fingers or tools to access and operate the quick-connect coupling for connection or disconnection, further improving maintainability.

[0070] In the liquid-cooled leak-proof electrical enclosure described in this embodiment, the enclosure shell 10 has an installation chamber, and a recessed clearance portion 17, isolated from the installation chamber, is provided at the junction of the bottom wall 11 and the side wall 12. The bottom wall 11 has a through opening 13. The liquid-cooled radiator 30 is fixed to the bottom of the shell 10, and its upper surface protrudes into the installation chamber through the opening 13. The liquid-cooled radiator 30 has an upwardly extending flow channel connecting portion 32, which is accommodated within the clearance portion 17. By accommodating the flow channel connecting portion 32 within the clearance portion 17 and isolating it from the chamber, the pipe connection point most prone to leakage is physically isolated outside the main installation chamber. Even if a leak occurs, the coolant will be confined within the clearance portion 17 and will not directly enter the main chamber where the electrical components are installed, thus achieving the core purpose of leak-proof protection of the electrical components. Furthermore, this technical approach is based on an improvement in the overall chassis assembly structure where the liquid-cooled heat sink 30 is fixed to the lower part of the housing 10. This improvement allows the flow channel connecting part 32 to be located outside the housing 10. However, this design also presents the problem that the flow channel connecting part 32 protrudes from the housing 10. Therefore, the aforementioned clearance part 17 is provided on the housing 10. After the flow channel connecting part 32 is accommodated in the clearance part 17, it can be housed within the clearance part 17, thereby improving the problem of the flow channel connecting part 32 protruding too much. Moreover, the upward-extending structure of the flow channel connecting part 32, compared to a structure where the flow channel connecting part 32 extends horizontally, is not affected by the thickness of the liquid-cooled heat sink 30, and can maximize the size of the flow channel connecting part 32, thereby increasing the liquid flow area. The design of the heat sink being located below, with its upper surface exposed through the opening 13, ensures that the main heat dissipation surface of the heat sink can effectively contact the heat-generating components in the mounting cavity, ensuring heat dissipation efficiency. The recessed design of the clearance portion 17 also ensures that it occupies little or no external contour space of the chassis, resulting in a more compact structure. Overall, the liquid-cooled leak-proof electrical chassis provided by this technical solution directly places the flow channel connection portion 32 on the outside of the housing 10, and improves the housing 10 and the liquid cooling radiator 30 based on this arrangement, thereby improving the sealing and leakage problems of the liquid cooling radiator 30 existing in electrical chassis.

[0071] Reference Figure 10 The sidewalls 12 of the housing 10 along the first direction are recessed inward toward the inside of the housing 10 at positions corresponding to the first connecting portions 22 of the two connecting units 21 to form reinforcing portions 121. The first connecting portions 22 are fixed to the corresponding reinforcing portions 121.

[0072] Specifically, both the left and right sidewalls 12 of the housing 10 are provided with the aforementioned reinforcing portion 121. The sidewalls 12 and bottom wall 11 of the housing 10 can be formed by bending metal sheets. In the portion of the sidewall 12 near the edge connecting with the bottom wall 11, this portion of the sidewall 12 is positioned closer to the inner side of the housing 10 in the left-right direction compared to the upper portion of the sidewall 12. That is, at the lower part of the sidewall 12, which originally extends vertically, the sidewall 12 is first bent inwards to form a bend, and then continues to extend downwards to form another part of the sidewall 12, which is the aforementioned reinforcing portion 121. The vertical dimension of the reinforcing portion 121 is approximately equivalent to the vertical dimension of the first connecting portion 22, and the reinforcing portion 121 also extends in the front-rear direction of the sidewall 12 of the housing 10, with its extension length approximately equivalent to the front-rear length of the connecting unit 21. Therefore, the connecting unit 21 connects to the reinforcing portion 121 of the sidewall 12 of the housing 10. The inward-recessed reinforcement 121 on the side wall 12 of the housing 10 significantly improves the bending strength and rigidity of the side wall 12, enhances the overall structural stability of the chassis, effectively resists external pressure and impact, and prevents chassis deformation. Simultaneously, the reinforcement 121 disperses the force from the connector 20 over a wider area of ​​the side wall 12, reducing stress concentration and thus improving the chassis's load-bearing capacity. Furthermore, fixing the first connecting portion 22 of the connector 20 to the reinforcement 121 provides a more stable connection point, strengthening the link between the connector 20 and the housing 10.

[0073] Furthermore, in this embodiment, the surface of the first connecting portion 22 facing outward relative to the housing 10 in the first direction is flush with the surface of the sidewalls 12 of the housing 10 on both sides along the first direction facing outward. This arrangement ensures the flatness of the outer surface of the chassis and reduces potential collision risks.

[0074] Reference Figure 1 The fixing member 40 is provided with two fixing units 41 along a first direction; the fixing unit 41 is located on the outer side of the corresponding connecting unit 21 opposite to the housing 10, and is fixedly connected to the connecting unit 21 and the housing 10. The fixing unit 41 has a first fixing part extending upward and a second fixing part extending horizontally outward relative to the housing 10. The first fixing part abuts against the corresponding first connecting part 22 and is fixedly connected to the reinforcing part 121 of the housing 10; the second fixing part has a through accessory mounting hole 45; the fixing unit 41 has a lifting part 46 connected to the first fixing part and the second fixing part, and the lifting part 46 has a lifting hole 461 for lifting the electrical chassis.

[0075] Specifically, refer to Figure 7 , Figure 8 and Figure 10 The two fixing units 41 of the fixing member 40 are correspondingly disposed with the two connecting units 21 of the connecting member 20, and are respectively located on the outer side of the corresponding connecting unit 21 relative to the position of the housing 10. The fixing unit 41 includes a first fixing part extending in the vertical direction and a second fixing part extending in the horizontal direction, wherein the lower edge of the first fixing part is connected to the inner edge of the second fixing part, and the second fixing part can be regarded as being formed by extending outward from the lower edge of the first fixing part. The dimensions of the first fixing part in the vertical and horizontal directions are approximately equivalent to the first connecting part 22 of the connecting unit 21. The inner surface of the first fixing part can abut against the outer surface of the first connecting part 22 of the corresponding connecting unit 21, and the fixing unit 41 and the connecting unit 21 are simultaneously fixed to the reinforcing part 121 of the side wall 12 of the housing 10 by threaded fasteners. Furthermore, the fixing unit 41 and the connecting unit 21 can also be fixedly connected to the liquid cooling plate 31 by threaded fasteners.

[0076] On the second fixing part of the fixing unit 41, a number of vertically penetrating accessory mounting holes 45 are arranged along the front-back direction. When necessary, other accessories such as base supports can be further installed on the fixing part 40. At the same time, a number of lifting parts 46 are provided between the first fixing part and the second fixing part along the front-back direction. The lifting part 46 is a plate-shaped structure that extends upward from the upper surface of the second fixing part and connects to the outer surface of the first fixing part. Lifting holes 461 are provided through the lifting part 46 along the front-back direction to facilitate lifting and transportation using lifting equipment, improve installation efficiency, reduce the difficulty and risk of manual handling, and ensure operational safety.

[0077] Furthermore, referring to Figure 7 The fixing unit 41 has a first limiting part 44 extending upward and along the first direction at one end in the second direction. The first limiting part 44 is located on one side of the housing 10 in the second direction and is fixedly connected to the side wall 12 of the housing 10 on that side to restrict the liquid cooling plate 31 from moving towards that side in the second direction. Meanwhile, referring to... Figure 1 The positioning member 50 is fixed to the housing 10 and located on the other side of the housing 10 in the second direction opposite to the limiting portion; the positioning member 50 extends along the second direction and protrudes from the side wall 12 of the housing 10 in the second direction, and has a second limiting portion 51 that is toward the liquid cooling plate 31 in the second direction and is used to limit the movement of the liquid cooling plate 31 toward that side in the second direction.

[0078] Specifically, the front end of the fixing unit 41 bends towards the location of the housing 10, forming a first limiting part 44 extending upward and towards the housing 10. The first limiting part 44 is located on the front side of the housing 10 and just blocks the front of the liquid cooling plate 31, thereby restricting the liquid cooling plate 31 from moving forward in the front-back direction. The positioning member 50 is a long strip-shaped member extending in the left-right direction, with a certain width in the front-back direction. It is fixedly installed on the bottom wall 11 of the housing 10 by threaded fasteners and is located on the rear side of the housing 10. The front edge of the positioning member 50 forms a second limiting part 51, which abuts against the rear edge of the liquid cooling plate 31 and restricts the liquid cooling plate 31 from moving backward in the front-back direction. In addition, the positioning member 50 protrudes from one side of the housing 10. When the chassis is installed in the cabinet, the positioning member 50 can act as a positioning mechanism, cooperating with the positioning slots and other structures in the cabinet to prevent the chassis from shaking in the vertical direction.

[0079] In addition, a breather valve is provided on the housing 10 to balance the air pressure inside and outside the housing 10. Specifically, the breather valve can be installed on the front side wall 12 of the housing 10, and it generally includes a valve seat, a valve core, and a pressure regulating device. The valve seat is fixedly installed on the housing 10 and serves as the channel interface for gas inlet and outlet. The valve core is a sealing component that can move up and down to block or open the valve seat. The pressure regulating device, such as a counterweight, spring, or lever, sets the pressure threshold for valve opening. When the pressure inside the housing 10 exceeds the positive pressure setting value due to factors such as temperature rise, medium evaporation, or filling: the internal gas pressure pushes the valve core upward, overcoming the resistance of the counterweight or spring; the valve core leaves the valve seat, opening the exhaust channel, and excess gas is discharged from the housing 10 until the internal pressure drops below the setting value; the valve core resets under the action of gravity or spring force, closing the valve. When the pressure inside the housing 10 is lower than the negative pressure setting value, the external atmospheric pressure pushes the valve core downward, overcoming the resistance of the counterweight or spring. The valve core opens the air intake channel, and outside air is drawn into the housing 10 until the internal pressure rises back above the setting value. The opening pressure of the breathing valve can be precisely set by adjusting the weight of the counterweight, the compression of the spring, or the lever arm.

[0080] Example 2

[0081] Example 2 relates to an electrical device comprising the electrical enclosure described in Example 1, and electrical components located within the electrical enclosure, at least a portion of which are attached to the surface of the liquid cooling plate 31 exposed from the opening 13 in the bottom wall 11 of the housing 10.

[0082] Depending on the actual situation, for example, when the electrical device is an integrated energy storage converter and boost converter, the electrical components, such as power components, can be attached to the liquid cooling plate 31 to achieve efficient heat dissipation. The optimized structural design makes the entire electrical device compact, saves space, and is suitable for high-density application scenarios.

[0083] The foregoing description of the specifications and embodiments is intended to explain the scope of protection of this utility model, but does not constitute a limitation on the scope of protection of this utility model. Modifications, equivalent substitutions, or other improvements to the embodiments of this utility model 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 utility model or the foregoing embodiments, should all be included within the scope of protection of this utility model.

Claims

1. A liquid-cooled, liquid-leakage-proof electrical cabinet, characterized in that, include: The housing (10) is formed by a bottom wall (11), a side wall (12), and a top cover (16) to create an installation chamber. A recessed clearance (17) is provided at the junction of the bottom wall (11) and the side wall (12) to isolate the installation chamber. An opening (13) extends vertically through the bottom wall (11). A liquid-cooled radiator (30) is fixed to the lower part of the housing (10) and its upper surface is exposed in the mounting chamber through the opening (13). It has an upwardly extending flow channel (32) for communicating with an external pipe, and the flow channel (32) is accommodated in the relief part (17).

2. A liquid cooled leakproof liquid electric cabinet as claimed in claim 1, wherein, The flow channel connecting part (32) is flush with or located behind the side wall (12) of the relief part (17).

3. A liquid cooled, liquid-tight electrical enclosure as defined in claim 1, wherein, The opening (13) of the flow channel (32) is horizontally oriented toward the outside of the housing (10).

4. The liquid-cooled, liquid-tight electrical enclosure of claim 1, wherein, It also includes a flow channel quick connector (33) suitable for detachable and sealed connection with an external pipe, the flow channel quick connector (33) being installed in the opening (13) of the flow channel connection (32) and horizontally facing the outside of the housing (10).

5. The liquid-cooled, leak-proof electrical enclosure as described in claim 4, characterized in that, The quick connector (33) protrudes from the sidewall (12) of the clearance portion (17) where the flow channel connecting portion (32) to which it is connected is located.

6. The liquid-cooled, leak-proof electrical enclosure as described in claim 1, characterized in that, The number of flow channel connecting parts (32) is two. They are arranged at a preset distance along the first horizontal direction and are used for inputting and outputting coolant respectively. They are located on the same side of the liquid-cooled radiator (30) in the second horizontal direction that is perpendicular to the first direction.

7. The liquid-cooled, leak-proof electrical enclosure as described in claim 1, characterized in that, It also includes a connector (20); along both sides of the first direction, the portion of the bottom wall (11) located between the opening (13) and the side wall (12) forms a first flange (14); the connector (20) is provided with two connecting units (21) along the first direction; the connecting unit (21) extends along the second direction and is provided with an upwardly extending first connecting portion (22) and a second connecting portion (23) extending horizontally inward relative to the housing (10), the first connecting portion (22) is fixed to the housing (10), and the second connecting portion (23) cooperates with the corresponding first flange (14) to form a fixed space; the two sides of the liquid cooling radiator (30) in the first direction are placed in the fixed space and abut against the corresponding first flange (14) and the second connecting portion (23), and it is fixed to the first flange (14) and / or the second connecting portion (23) at least in the second direction.

8. The liquid-cooled, leak-proof electrical enclosure as described in claim 7, characterized in that, The sidewalls (12) of the housing (10) on both sides along the first direction are bent toward the inside of the housing (10) at the position corresponding to the first connecting part (22) of the two connecting units (21) to form a reinforcing part (121), and the first connecting part (22) is fixed to the corresponding reinforcing part (121).

9. A liquid-cooled, leak-proof electrical enclosure as described in claim 1, characterized in that, It also includes a breathing valve, which is installed in the housing (10) and is used to balance the air pressure inside and outside the housing (10).

10. An electrical device comprising a plurality of electrical components, characterized in that, It also includes a liquid-cooled leak-proof electrical enclosure as described in any one of claims 1-9, wherein at least a portion of the electrical components are attached to the surface of the liquid-cooled radiator (30) exposed from the opening (13) on the bottom wall (11) of the housing (10).

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