Full liquid-cooled electrical cabinet, full liquid-cooled electrical cabinet group and energy storage boosting all-in-one machine

Abstract

The utility model discloses a full-liquid-cooling electrical cabinet, a full-liquid-cooling electrical cabinet group and an energy storage and boosting all-in-one machine. The full-liquid-cooling electrical cabinet comprises a cabinet body, a plurality of electrical modules and a liquid cooling unit, the top of the cabinet body is provided with a first ventilation structure, and the side of the cabinet body is provided with a second ventilation structure which is provided with a first side wall perpendicular to the first direction. The second ventilation structure is at least located on the first side wall; a plurality of mounting channels extending in the first direction are arranged in the cabinet body, and openings of the mounting channels are formed in the first side wall; the electrical modules are detachably contained in the installation channels respectively, the electrical modules are provided with radiators, and the radiators are provided with cooling liquid flow channels. The liquid cooling unit is arranged in the liquid cooling cavity, and the liquid supply end and the liquid return end of the liquid cooling unit are communicated with the cooling liquid flow channels of the radiators. The device is small in occupied area during application.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of energy storage, in particular to a full-liquid-cooled electrical cabinet, a full-liquid-cooled electrical cabinet group and an energy storage and voltage boosting integrated machine. BACKGROUND

[0002] The electrical cabinet is generally cooled by air cooling, and the air inlet surface and the air outlet surface are often arranged on opposite sides of the electrical cabinet. In actual application, multiple electrical cabinets are often combined for use. Specifically, multiple electrical cabinets are combined in a certain direction to form an electrical cabinet unit, and then multiple electrical cabinet units are arranged in a direction perpendicular to the combination direction. Due to the arrangement of the air inlet surface and the air outlet surface, when two electrical cabinet units are arranged, the air inlet surfaces face away from each other, and the air outlet surfaces face each other. Therefore, a large space is required to prevent interference between air flows, which also leads to a large occupied area when two electrical cabinet units or even more electrical cabinet units are combined for use. SUMMARY

[0003] The utility model aims at overcoming the above-mentioned defects or problems in the background art, and provides a full-liquid-cooled electrical cabinet, a full-liquid-cooled electrical cabinet group and an energy storage and voltage boosting integrated machine, which have a small occupied area.

[0004] To achieve the above-mentioned purpose, the utility model and its preferred embodiments adopt the following technical solutions, but the embodiments are not limited to the following solutions:

[0005] Technical solution one and its related embodiments relate to a full-liquid-cooled electrical cabinet, which comprises a cabinet body, a first ventilation structure arranged on the top of the cabinet body, a second ventilation structure arranged on the side of the cabinet body, a first side wall arranged perpendicularly to the first direction, and the second ventilation structure arranged on the first side wall; a plurality of installation channels arranged in the cabinet body and extending in the first direction, and the installation channels arranged on the first side wall; a plurality of electrical modules, each electrical module arranged in each installation channel in a detachable manner, the electrical module provided with a radiator, and the radiator provided with a cooling liquid flow channel; and a liquid cooling unit arranged in the cabinet body, the liquid cooling unit provided with a liquid supply end and a liquid return end, the liquid supply end and the liquid return end communicated with the cooling liquid flow channel of each electrical module, and the liquid cooling unit cooled by air flow between the first ventilation structure and the second ventilation structure.

[0006] Based on technical solution one, technical solution two is also provided. In technical solution two and its related embodiments, the first ventilation structure and the second ventilation structure are air outlet structure and air inlet structure respectively; the cabinet body is provided with a liquid cooling cavity, and a heat dissipation cavity is arranged below the liquid cooling cavity; the first ventilation structure and the second ventilation structure are arranged only on the liquid cooling cavity; the liquid cooling unit is arranged in the liquid cooling cavity; and the heat dissipation cavity is provided with the installation channels.

[0007] Based on technical solution two, there is also a technical solution three, technical solution three and related embodiments thereof further comprise a power distribution module and a connector; the bottom of the cabinet is further provided with a power distribution cavity accommodating the power distribution module, the heat dissipation cavity is located between the liquid cooling cavity and the power distribution cavity, and the liquid cooling cavity and the power distribution cavity are separated by a mounting wall, the connector penetrates the mounting wall and is provided with a first connecting end located in the heat dissipation cavity and a second connecting end located in the power distribution cavity; the first connecting end is electrically connected to each electrical module through a cable, and the second connecting end is electrically connected to the power distribution module.

[0008] Based on technical solution three, there is also a technical solution four, technical solution four and related embodiments thereof, each mounting channel forms at least two mounting channel groups arranged along a second direction perpendicular to the first direction, and each mounting channel group includes a plurality of mounting channels arranged along the vertical direction; each mounting channel group is provided with a containing space on both sides along the second direction.

[0009] Based on technical solution four, there is also a technical solution five, technical solution five and related embodiments thereof, the electrical module is adapted to slide along the first direction relative to the mounting channel; the first side wall is provided with a wire passing port corresponding to each mounting channel on both sides along the second direction.

[0010] Based on technical solution two, there is also a technical solution six, technical solution six and related embodiments thereof, the cabinet is provided with third and fourth side walls parallel and opposite to each other along the second direction; the second ventilation structure is also located on the third and fourth side walls.

[0011] Based on technical solution six, there is also a technical solution seven, technical solution seven and related embodiments thereof, the liquid cooling unit includes a heat exchanger and a heat dissipation fan, the heat dissipation fan is installed at the first ventilation structure, the liquid supply end and the liquid return end of the heat exchanger are communicated with the cooling liquid flow channel of each radiator through a pipeline; the liquid inlet port and the liquid outlet port of the radiator are located at one end of the electrical module close to the first side wall, and the pipeline is at least partially located outside the first side wall.

[0012] Technical solution eight relates to a full liquid cooling electrical cabinet group, comprising two full liquid cooling electrical cabinets arranged along the first direction, the full liquid cooling electrical cabinet is as described in any one of technical solutions one to six, and the first side walls of the two full liquid cooling electrical cabinets are away from each other.

[0013] Based on technical solution eight, there is also a technical solution nine, technical solution nine and related embodiments thereof, the two full liquid cooling electrical cabinets are adjacent along the first direction.

[0014] Technical solution ten and its related embodiments relate to an integrated energy storage and booster unit, including a transformer and at least one fully liquid-cooled electrical cabinet group as described in technical solution eight or nine, each fully liquid-cooled electrical cabinet group being arranged along a second direction perpendicular to the first direction; each fully liquid-cooled electrical cabinet group and the transformer being arranged along the second direction; the electrical module is an energy storage converter module.

[0015] Based on technical solution nine, there is also technical solution ten. In technical solution ten and its related embodiments, the transformer is provided with an air intake and an air exhaust on each side along the first direction, and the air exhaust is located above the air intake.

[0016] 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:

[0017] In technical solution one and its preferred embodiments, the first ventilation structure and the second ventilation structure can be either an air outlet structure and an air inlet structure, or an air inlet structure and an air outlet structure, respectively; that is, the cabinet can have air inlet on the side and air outlet on the top, or air inlet on the top and air outlet on the side. When the cabinet has air inlet on the top and air outlet on the side, if the electrical cabinet is used alone, the second ventilation structure can be installed on multiple side walls of the cabinet as an air outlet structure; if multiple electrical cabinets are used side by side, the air outlet structure can be adjusted accordingly based on the number of cabinets. For example, if only two electrical cabinets are used side by side, it is only necessary to ensure that the side where the cabinets are used side by side does not have a second ventilation structure; if multiple... After electrical cabinets are combined to form an electrical cabinet unit, they need to be arranged with other electrical cabinet units in a direction perpendicular to the combination direction. Therefore, the second ventilation structure must be located on the side away from the other electrical cabinet unit. For example, if four electrical cabinets are used together, two electrical cabinets are combined along the second direction to form an electrical cabinet unit, and the two electrical cabinet units are spaced apart along the first direction. In this case, the first sidewalls of the two electrical cabinet units must be opposite to each other, and the second ventilation structure is only located on the first sidewall. Alternatively, the second ventilation structure can be located on the first sidewall and on the side of each electrical cabinet away from the other electrical cabinet along the second direction, with the second direction perpendicular to the first direction. The first and second ventilation structures can take various forms. The first ventilation structure can be louvers, grilles, mesh openings, perforated plates, etc., and can also be combined with dust nets or filters. The second ventilation structure can be sidewall louvers, grilles, honeycomb structures, or detachable panels, etc. When the second ventilation structure is an exhaust structure, it can be tilted downwards to exhaust air.

[0018] In this technical solution, the liquid supply and return ends of the liquid-cooled unit are connected to the coolant channels of each radiator, allowing the electrical modules to dissipate heat through liquid cooling. This high heat dissipation efficiency enables the electrical modules to achieve a larger power density, reducing the number of electrical modules required for the same power output. Fewer electrical modules allow for a smaller cabinet length or width, thus creating conditions for a compact footprint for the fully liquid-cooled electrical cabinet. Furthermore, the liquid-cooled unit achieves air cooling through the airflow between the first and second ventilation structures. When the first and second ventilation structures are respectively the exhaust and intake structures, the entire fully liquid-cooled electrical cabinet experiences top-mounted airflow, eliminating the traditional requirement for side-mounted and exhaust airflow, thereby allowing for two full-scale... The liquid-cooled electrical cabinets are arranged back-to-back along the first direction, thereby reducing the distance between the two fully liquid-cooled electrical cabinets in the fully liquid-cooled electrical cabinet group in technical solution eight, and reducing the footprint of the fully liquid-cooled electrical cabinet group. When applied to the energy storage booster integrated unit in technical solution ten, the footprint of the base of the energy storage booster integrated unit can be reduced. When the first ventilation structure and the second ventilation structure are the air inlet structure and the air outlet structure, as mentioned above, since the traditional arrangement of the air outlet sides of the two electrical cabinet units facing each other is eliminated, the two fully liquid-cooled electrical cabinets are allowed to be arranged back-to-back along the first direction, which can also reduce the footprint of the fully liquid-cooled electrical cabinet group in technical solution eight and the footprint of the base of the energy storage booster integrated unit in technical solution ten.

[0019] In addition, the installation channel extending along the first direction matches the modular electrical modules, allowing the electrical modules to be pulled out and installed along the first direction, simplifying the assembly process and facilitating maintenance. Whether the fully liquid-cooled electrical cabinets are combined to form a fully liquid-cooled electrical cabinet unit or assembled to form a fully liquid-cooled electrical cabinet group, the maintenance of each electrical module does not interfere with each other.

[0020] In Technical Solution 2 and its preferred embodiments, the first ventilation structure and the second ventilation structure are respectively an air outlet structure and an air inlet structure. While inheriting the advantages of Technical Solution 1, it also avoids the backflow of hot air caused by the upward flow of hot air into the first ventilation structure when the second ventilation structure is an air outlet structure. A liquid cooling cavity is provided at the top of the cabinet, and a heat dissipation cavity is provided below the liquid cooling cavity. The first ventilation structure and the second ventilation structure are only provided on the liquid cooling cavity, and the liquid cooling unit is placed inside the liquid cooling cavity. The heat dissipation cavity is provided with an installation channel, so that the heat dissipation cavity does not need to be equipped with a second ventilation structure and a first ventilation structure, thus avoiding the airflow interference problem of traditional heat dissipation cavity airflow heat dissipation.

[0021] In technical solution three and its preferred embodiments, since modular electrical modules generally have high protection, the heat dissipation cavity is located between the liquid cooling cavity and the power distribution cavity. The heat dissipation cavity can physically isolate the power distribution cavity from the liquid cooling cavity, preventing coolant leakage from the liquid cooling cavity into the power distribution cavity and causing damage to the power distribution module. Furthermore, the connector penetrates the mounting wall, enabling centralized cable management, avoiding messy cross-cavity wiring, and improving electrical safety and maintenance efficiency.

[0022] In technical solution four and its preferred embodiments, the installation channel groups are distributed along the second direction (horizontal) and vertical direction, forming a compact matrix layout, which improves the utilization rate of the cabinet space. Each installation channel group has accommodating spaces on both sides along the second direction, reserving space for cables or airflow, avoiding local heat accumulation, and is also more aesthetically pleasing than exposed cables.

[0023] In technical solution five and its preferred embodiments, the electrical modules are adapted to slide relative to the installation channels along the first direction, allowing for quick replacement and convenient maintenance. Furthermore, the modular installation channels are compatible with the sliding structure, facilitating the addition or removal of converter modules later. The fully liquid-cooled electrical cabinet offers good scalability. The first sidewall has cable access ports on both sides of each installation channel along the second direction, facilitating cable management and maintenance.

[0024] In technical solution five and its preferred embodiments, the second ventilation structure is also located on the third and fourth side walls, which enhances the air intake and improves the heat dissipation capacity of the liquid cooling unit; and the multi-side air intake design adapts to different installation environments, avoiding the heat dissipation bottleneck caused by the limitation of single-side air intake.

[0025] In technical solution seven and its preferred embodiments, the cooling fan is installed at the first ventilation structure, allowing for a larger power output and higher heat dissipation efficiency. Combined with external piping for the heat exchanger, this accelerates the heat exchange cycle and reduces the load on the liquid cooling system. At least part of the piping is located outside the first side wall, reducing the complexity of the piping inside the cabinet and facilitating maintenance and replacement.

[0026] Technical solution eight and its preferred embodiments have the technical advantages of any one of technical solutions one to seven.

[0027] In technical solution nine and its preferred embodiment, two fully liquid-cooled electrical cabinets are adjacent to each other along the first direction, further reducing the floor space occupied by the fully liquid-cooled electrical cabinet group.

[0028] Technical solution ten and its preferred embodiments possess the technical advantages of technical solutions eight or nine. Since the length of the transformer along the first direction is generally greater than the length of the fully liquid-cooled electrical cabinet along the first direction, and the fully liquid-cooled electrical cabinet assembly and the transformer are arranged along the second direction, the length of the transformer along the first direction is similar to the length of the fully liquid-cooled electrical cabinet assembly along the first direction. In traditional technology, the length of the fully liquid-cooled electrical cabinet assembly along the first direction is greater than the length of the transformer along the first direction. Therefore, when the energy storage booster unit is placed on the base, the space on both sides of the transformer along the first direction on the base is wasted. The above arrangement can fully utilize the space of the base. The modular design of the fully liquid-cooled electrical cabinet assembly arranged along the second direction supports rapid assembly and expansion, adapting to different power demand scenarios. Attached Figure Description

[0029] 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.

[0030] Figure 1 This is a three-dimensional schematic diagram of the fully liquid-cooled electrical cabinet of Embodiment 1 of this application. Figure 1 ;

[0031] Figure 2 This is a three-dimensional schematic diagram of the fully liquid-cooled electrical cabinet of Embodiment 1 of this application. Figure 2 ;

[0032] Figure 3 This is a three-dimensional schematic diagram of the fully liquid-cooled electrical cabinet of Embodiment 1 of this application, showing the cabinet door open and the concealed portion of the cabinet door.

[0033] Figure 4 for Figure 3 A schematic diagram of the first sidewall of the hidden part;

[0034] Figure 5 This is a three-dimensional schematic diagram of the energy storage booster unit according to Embodiment 3 of this application;

[0035] Figure 6 for Figure 5 Top view.

[0036] Explanation of key figure labels:

[0037] 100 fully liquid-cooled electrical cabinet; 10 cabinet body; 11 first side wall; 111 cable outlet; 12 second side wall; 13 third side wall; 14 fourth side wall; 15 mounting wall; 16 second ventilation structure; 17 first ventilation structure; 01 liquid cooling chamber; 02 heat dissipation chamber; 021 mounting channel; 020 mounting channel group; 03 power distribution chamber; 04 accommodating space; 20 electrical module; 21 wiring terminal; 22 liquid inlet port; 23 liquid outlet port; 30 liquid cooling unit; 31 cooling fan; 40 power distribution module; 50 connector; 51 first connection end; 200 fully liquid-cooled electrical cabinet group; 300 transformer; 301 exhaust vent; 302 exhaust vent; 400 base. Detailed Implementation

[0038] 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.

[0039] 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.

[0040] 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", "counterclockwise" to indicate orientation or positional relationship is based on the orientation and positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model 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 protection scope of this utility model.

[0041] 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.

[0042] 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".

[0043] Example 1

[0044] See Figures 1-4 , Figures 1-4 A fully liquid-cooled electrical cabinet 100 is shown, which includes a cabinet body 10, an electrical module 20, a liquid cooling unit 30, a power distribution module 40, and a connector 50.

[0045] See Figures 1-3The cabinet 10 is generally rectangular, with its height in the vertical direction, its width in the first direction, and its length in the second direction, which is perpendicular to the first direction. The cabinet 10 has a first sidewall 11 and a second sidewall 12 that are parallel to each other and opposite to each other along the first direction. Both the first sidewall 11 and the second sidewall 12 are perpendicular to the first direction. The third sidewall 13 and the fourth sidewall 14 are both perpendicular to the second direction. It should be understood that in this embodiment, the parts of the first sidewall 11 may or may not be on the same plane, and the same applies to the second sidewall 12, the third sidewall 13, and the fourth sidewall 14. The top of the cabinet 10 has a first ventilation structure 17, and the sides have a second ventilation structure 16. The second ventilation structure 16 is located at least on the first sidewall 11. In this embodiment, the first ventilation structure 17 and the second ventilation structure 16 are respectively an air outlet structure and an air inlet structure. However, it should be understood that the first ventilation structure 17 and the second ventilation structure 16 can also be an air inlet structure and an air outlet structure, respectively; that is, the cabinet 10 can have air inlet from the side and air outlet from the top, or air inlet from the top and air outlet from the side. When the cabinet 10 has air inlet from the top and air outlet from the side, if the electrical cabinet is used alone, the second ventilation structure 16 can be installed on multiple side walls of the cabinet 10 as an air outlet structure; if multiple electrical cabinets are used side by side, the air outlet structure can be adjusted accordingly based on the number of cabinets. For example, if only two electrical cabinets are used side by side, it is only necessary to ensure that the second ventilation structure 16 is not installed on the side where the cabinets are used side by side; if multiple electrical cabinets are used side by side... After the electrical cabinets are combined to form an electrical cabinet unit, they need to be arranged with other electrical cabinet units in a direction perpendicular to the direction of combination. Therefore, the second ventilation structure 16 must be located on the side away from the other electrical cabinet unit. For example, if four electrical cabinets are used together, with two electrical cabinets combined in the second direction to form an electrical cabinet unit, and the two electrical cabinet units spaced apart in the first direction, then the first sidewalls of the two electrical cabinet units must be away from each other. The second ventilation structure 16 is only located on the first sidewall 11, or the second ventilation structure 16 is located on the first sidewall 11 and on the side of each electrical cabinet away from the other electrical cabinet in the second direction. The first ventilation structure 17 and the second ventilation structure 16 can have various structures. The first ventilation structure 17 can be a louver, grille, mesh opening, perforated plate, etc., or it can be combined with a dustproof net or filter. The second ventilation structure 16 can be a sidewall louver, grille, honeycomb structure, or detachable panel, etc. When the second ventilation structure 16 is an exhaust structure, it can be tilted downwards to exhaust air.

[0046] See Figure 4 The cabinet 10 has a liquid cooling cavity 01 at the top and a power distribution cavity 03 at the bottom. A heat dissipation cavity 02 is located below the liquid cooling cavity 01, between the liquid cooling cavity 01 and the power distribution cavity 03. The liquid cooling cavity 01 and the power distribution cavity 03 are separated by a mounting wall 15. It should be understood that, in this embodiment, in addition to the first side wall 11, the cabinet 10 also has a door on the side where the first side wall 11 is located, corresponding to the heat dissipation cavity 02 and the power distribution cavity 03.

[0047] See Figures 1-3 The first ventilation structure 17 and the second ventilation structure 16 are only provided on the liquid cooling cavity 01. The second ventilation structure 16 is located at least on the portion of the first sidewall 11 corresponding to the liquid cooling cavity 01. In this embodiment, the third sidewall 13 and the fourth sidewall 14 are respectively provided with the second ventilation structure 16 corresponding to the liquid cooling cavity 01. That is, the second ventilation structure 16 is also located on the third sidewall 13 and the fourth sidewall 14, thereby allowing air to enter the liquid cooling cavity 01 from three sides. The first ventilation structure 17 includes multiple air outlets, each air outlet being arranged along a second direction. The second sidewall 12 forms the back of the cabinet 10, and the first sidewall 11 forms the front of the cabinet 10.

[0048] See Figures 3-4 The cabinet 10 also has multiple mounting channels 021 extending along a first direction, with the mounting channels 021 opening into the first side wall 11. In this embodiment, the heat dissipation cavity 02 has mounting channels 021. Each mounting channel 021 forms at least two mounting channel groups 020 arranged along a second horizontal direction perpendicular to the first direction. Each mounting channel group 020 includes several mounting channels 021 arranged vertically. Figure 4 In this configuration, there are two installation channel groups 020; each installation channel group 020 has accommodating spaces 04 on both sides along the second direction. The first sidewall 11 has cable passages 111 on both sides along the second direction corresponding to each installation channel 021. Figure 3 In the middle, each cable passage 111 forms 3 cable passage groups, and each cable passage group includes the same number of cable passages 111 as the installation channel 021. Each cable passage 111 is arranged in the vertical direction.

[0049] Each electrical module 20 is detachably housed in its respective mounting channel 021. It should be understood that the number of electrical modules 20 may be less than the number of mounting channels 021, allowing for the addition or removal of electrical modules 20 as needed. Each electrical module 20 is equipped with a heat sink with coolant channels. The electrical module 20 is adapted to slide relative to the mounting channel 021 along a first direction. The heat sink may be an air-liquid heat exchanger or a liquid-cooled plate, etc. See also... Figure 3 The electrical module 20 has a wiring terminal 21 and a liquid inlet port 22 and a liquid outlet port 23 for the heat sink on its front side, near the first side wall 11. It should be understood that the electrical module 20 in this embodiment can be of various types, such as an energy storage converter module, a photovoltaic inverter module, a DC-DC converter module, an uninterruptible power supply (UPS) module, or a DC charging module, etc. This embodiment does not limit the type of module.

[0050] The liquid cooling unit 30 is placed inside the cabinet 10 and dissipates heat through airflow between the first ventilation structure 17 and the second ventilation structure 16. In this embodiment, the liquid cooling unit 30 is placed inside the liquid cooling cavity 01, and its liquid supply end and liquid return end are connected to the coolant channels of each radiator. The liquid cooling unit 30 includes a heat exchanger and a cooling fan 31. The cooling fan 31 is installed at the first ventilation structure 17, and the number of cooling fans 31 corresponds to the number of air outlets. Each cooling fan 31 is installed at each air outlet. The liquid supply end and liquid return end of the heat exchanger are connected to the coolant channels of each radiator through pipelines. The pipelines are at least partially located outside the first side wall 11. The heat exchanger can be an air-liquid heat exchanger, which is existing technology and will not be described in detail in this embodiment.

[0051] See Figure 4 The power distribution module 40 is housed in the power distribution cavity 03. The connector 50 passes through the mounting wall 15 and has a first connection end 51 located in the heat dissipation cavity 02 and a second connection end (not shown in the figure) located in the power distribution cavity 03. The first connection end 51 is electrically connected to each electrical module 20 via a cable, and the second connection end is electrically connected to the power distribution module 40.

[0052] In this embodiment, the liquid supply end and return end of the liquid cooling unit 30 are connected to the coolant channels of each radiator, allowing the electrical modules 20 to dissipate heat through liquid cooling. This high heat dissipation efficiency enables the electrical modules 20 to achieve a larger power density, reducing the number of electrical modules 20 at the same power. A smaller number of electrical modules 20 allows for a smaller length or width of the cabinet 10, thus creating conditions for a smaller footprint for the fully liquid-cooled electrical cabinet 100. The liquid cooling unit 30 uses airflow between the first ventilation structure 17 and the second ventilation structure 16 for air cooling. When the first ventilation structure 17 and the second ventilation structure 16 are respectively the exhaust structure and the intake structure, the entire fully liquid-cooled electrical cabinet 100 has top-mounted airflow, eliminating the need for traditional two-way ventilation. The side-inlet and outlet air requirements allow two fully liquid-cooled electrical cabinets 100 to be arranged back-to-back along the first direction, thereby reducing the distance between the two fully liquid-cooled electrical cabinets 100 in the fully liquid-cooled electrical cabinet group 200 and reducing the floor area of ​​the fully liquid-cooled electrical cabinet group 200. When applied to an integrated energy storage and booster unit, the floor area of ​​the base 400 of the integrated energy storage and booster unit can be reduced. When the first ventilation structure 17 and the second ventilation structure 16 are the air inlet structure and the air outlet structure, as mentioned above, since the traditional arrangement of the air outlet sides of the two electrical cabinet units facing each other is eliminated, the two fully liquid-cooled electrical cabinets 100 are allowed to be arranged back-to-back along the first direction, which can also reduce the floor area of ​​the fully liquid-cooled electrical cabinet group 200 and the floor area of ​​the base of the integrated energy storage and booster unit.

[0053] In addition, the installation channel 021 extending along the first direction matches the modular electrical module 20, so that the electrical module 20 can be pulled out and installed along the first direction, simplifying the assembly process and facilitating maintenance. Whether the fully liquid-cooled electrical cabinets 100 are combined to form a fully liquid-cooled electrical cabinet unit or combined to form a fully liquid-cooled electrical cabinet group 200, the maintenance of each electrical module 20 will not interfere with each other.

[0054] In this embodiment, the first ventilation structure and the second ventilation structure 16 are respectively the air outlet structure and the air inlet structure. While inheriting the advantages mentioned above, it also avoids the hot air flow back caused by the hot air flow upward into the first ventilation structure 17 when the second ventilation structure 16 is the air outlet structure. The top of the cabinet 10 is provided with a liquid cooling cavity 01, and a heat dissipation cavity 02 is provided below the liquid cooling cavity 01. The liquid cooling cavity 01 is provided with the first ventilation structure 17 and the second ventilation structure 16, and the liquid cooling unit 30 is placed in the liquid cooling cavity 01. The heat dissipation cavity 02 is provided with an installation channel 021, so that the heat dissipation cavity 02 does not need to be provided with the second ventilation structure 16 and the first ventilation structure 17, avoiding the airflow interference problem of traditional heat dissipation cavity 02.

[0055] In this embodiment, since the modular electrical module 20 generally has high protection, the heat dissipation cavity 02 is located between the liquid cooling cavity 01 and the power distribution cavity 03. The heat dissipation cavity 02 can physically isolate the power distribution cavity 03 from the liquid cooling cavity 01, preventing coolant leakage from the liquid cooling cavity 01 into the power distribution cavity 03 and causing damage to the power distribution module 40. The connector 50 penetrates the mounting wall 15, enabling centralized cable management, avoiding messy cross-cavity wiring, and improving electrical safety and maintenance efficiency.

[0056] In this embodiment, the installation channel groups 020 are distributed along the second direction (horizontal) and vertical direction, forming a compact matrix layout, which improves the utilization rate of the cabinet space. Each installation channel group 020 has a accommodating space 04 on both sides along the second direction, which reserves space for cables or airflow, avoids local heat accumulation, and is more aesthetically pleasing than exposed cables.

[0057] In this embodiment, the electrical module 20 is adapted to slide relative to the mounting channel 021 along the first direction, allowing the electrical module 20 to be quickly replaced and conveniently maintained. Furthermore, the modular mounting channel 021 is compatible with the sliding structure, facilitating the addition or removal of converter modules later, and the fully liquid-cooled electrical cabinet 100 has good expandability. The first sidewall 11 is provided with cable access ports 111 on both sides of each mounting channel 021 along the second direction, facilitating cable management and maintenance.

[0058] In this embodiment, the second passage structure 16 is also located on the third side wall 13 and the fourth side wall 14 (along the second direction), and the second ventilation structure 16 of the liquid cooling cavity 01 is added to enhance the air intake and improve the heat dissipation capacity of the liquid cooling unit 30; and the multi-side air intake design adapts to different installation environments and avoids the heat dissipation bottleneck caused by the limitation of single-side air intake.

[0059] In this embodiment, the cooling fan 31 is installed at the first ventilation structure 17, allowing the cooling fan 31 to be configured with a larger power and higher heat dissipation efficiency. Combined with the external piping of the heat exchanger, it accelerates the heat exchange cycle and reduces the load on the liquid cooling system. The piping is at least partially located outside the first side wall 11, reducing the complexity of the piping inside the cabinet and facilitating maintenance and replacement.

[0060] Example 2

[0061] This utility model also provides a fully liquid-cooled electrical cabinet assembly 200, see [link]. Figures 5-6 The system includes two fully liquid-cooled electrical cabinets 100 arranged along a first direction, with their first sidewalls 11 facing away from each other. In this embodiment, the two fully liquid-cooled electrical cabinets 100 are adjacent to each other along the first direction. It should be understood that in other embodiments, a certain gap may be maintained between the two fully liquid-cooled electrical cabinets 100.

[0062] The fully liquid-cooled electrical cabinet group 200 has the technical advantages of the above embodiments. When two fully liquid-cooled electrical cabinets 100 are adjacent along the first direction, the floor space of the fully liquid-cooled electrical cabinet group 200 is further reduced.

[0063] Example 3

[0064] This utility model also provides an integrated energy storage and booster unit; see [link to relevant documentation]. Figures 5-6 The system includes a transformer 300 and at least one of the aforementioned fully liquid-cooled electrical cabinet units 200. The energy storage booster unit is placed on a base 400, and each fully liquid-cooled electrical cabinet unit 200 is arranged along a second direction perpendicular to the first direction. Each fully liquid-cooled electrical cabinet unit 200 and the transformer 300 are arranged along the second direction. The electrical module 20 is an energy storage converter module. The transformer 300 has an air intake vent 301 and an exhaust vent 302 on each side along the second direction, with the exhaust vent 302 located above the air intake vent 301.

[0065] This embodiment has the technical advantages of Embodiment 2. Since the length of the transformer 300 along the first direction is generally greater than the length of the fully liquid-cooled electrical cabinet 100 along the first direction, and the fully liquid-cooled electrical cabinet group 200 and the transformer 300 are arranged along the second direction, the length of the transformer 300 along the first direction is similar to the length of the fully liquid-cooled electrical cabinet group 200 along the first direction. In traditional technology, the length of the fully liquid-cooled electrical cabinet group 200 along the first direction is greater than the length of the transformer 300 along the first direction. Therefore, when the energy storage booster unit is placed on the base 400, the space on both sides of the transformer 300 along the first direction on the base 400 is wasted. The above arrangement can fully utilize the space of the base 400. The modular design of the fully liquid-cooled electrical cabinet group 200 arranged along the second direction supports rapid assembly and expansion, adapting to different power demand scenarios.

[0066] In this embodiment, the transformer 300 is provided with an air inlet 301 and an air outlet 302 on each side along the second direction. The air outlet 302 is located above the air inlet 301 and is physically isolated from the heat dissipation system of the fully liquid-cooled electrical cabinet 200 to avoid the heat source superposition effect.

[0067] 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 fully liquid-cooled electrical cabinet (100), characterized in that, include The cabinet (10) has a first ventilation structure (17) on its top and a second ventilation structure (16) on its side. It has a first sidewall (11) perpendicular to the first direction. The second ventilation structure (16) is located at least on the first sidewall (11). The cabinet (10) also has a plurality of installation channels (021) extending along the first direction. The installation channels (021) open into the first sidewall (11). Multiple electrical modules (20), each electrical module (20) being detachably housed in a mounting channel (021), each electrical module (20) being equipped with a heat sink, the heat sink being equipped with a coolant flow channel; and The liquid cooling unit (30) is placed inside the cabinet (10). Its liquid supply end and liquid return end are connected to the coolant flow channels of each electrical module (20). It is cooled by airflow between the first ventilation structure (17) and the second ventilation structure (16).

2. The fully liquid-cooled electrical cabinet (100) as described in claim 1, characterized in that, The first ventilation structure (17) and the second ventilation structure (16) are respectively an air outlet structure and an air inlet structure; the top of the cabinet (10) is provided with a liquid cooling cavity (01), and a heat dissipation cavity (02) is provided below the liquid cooling cavity (01); the first ventilation structure (17) and the second ventilation structure (16) are only provided on the liquid cooling cavity (01), and the liquid cooling unit (30) is placed inside the liquid cooling cavity (01); the heat dissipation cavity (02) is provided with the installation channel (021).

3. The fully liquid-cooled electrical cabinet (100) as described in claim 2, characterized in that, It also includes a power distribution module (40) and a connector (50); the bottom of the cabinet (10) is also provided with a power distribution cavity (03) for accommodating the power distribution module (40), the heat dissipation cavity (02) is located between the liquid cooling cavity (01) and the power distribution cavity (03), and the liquid cooling cavity (01) and the power distribution cavity (03) are separated by a mounting wall (15), the connector (50) passes through the mounting wall (15) and is provided with a first connection end (51) located in the heat dissipation cavity (02) and a second connection end located in the power distribution cavity (03); the first connection end (51) is electrically connected to each electrical module (20) through a cable, and the second connection end is electrically connected to the power distribution module (40).

4. The fully liquid-cooled electrical cabinet (100) as described in claim 3, characterized in that, Each installation channel (021) forms at least two installation channel groups (020) arranged in a horizontal second direction perpendicular to the first direction. Each installation channel group (020) includes several installation channels (021) arranged in a vertical direction. Each installation channel group (020) has accommodating spaces (04) on both sides along the second direction.

5. The fully liquid-cooled electrical cabinet (100) as described in claim 4, characterized in that, The electrical module (20) is adapted to slide relative to the mounting channel (021) along a first direction; the first sidewall (11) is provided with a wire passage (111) on both sides of each mounting channel (021) along a second direction.

6. The fully liquid-cooled electrical cabinet (100) as described in claim 2, characterized in that, The cabinet (10) is provided with a third side wall (13) and a fourth side wall (14) that are parallel to each other and opposite to each other along the second direction; the second ventilation structure (16) is also located on the third side wall (13) and the fourth side wall (14).

7. A fully liquid-cooled electrical cabinet (100) as described in claim 6, characterized in that, The liquid cooling unit (30) includes a heat exchanger and a cooling fan (31). The cooling fan (31) is installed at the first ventilation structure (17). The supply end and return end of the heat exchanger are connected to the cooling liquid flow channels of each radiator through pipelines. The inlet port (22) and outlet port (23) of the radiator are both located at the end of the electrical module (20) near the first side wall (11). The pipeline is at least partially located outside the first side wall (11).

8. A fully liquid-cooled electrical cabinet assembly (200), characterized in that, It includes two fully liquid-cooled electrical cabinets (100) arranged along a first direction, as described in any one of claims 1-7, wherein the first sidewalls (11) of the two fully liquid-cooled electrical cabinets (100) are opposite to each other.

9. A fully liquid-cooled electrical cabinet assembly (200) as described in claim 8, characterized in that, Two fully liquid-cooled electrical cabinets (100) are adjacent to each other along the first direction.

10. An integrated energy storage and booster unit, characterized in that, It includes a transformer (300) and at least one fully liquid-cooled electrical cabinet group (200) as described in claim 8 or 9, each fully liquid-cooled electrical cabinet group (200) is arranged along a second horizontal direction perpendicular to the first direction; each fully liquid-cooled electrical cabinet group (200) and the transformer (300) are arranged along the second direction; the electrical module (20) is an energy storage converter module.

Images