Outdoor energy storage cabinet

Abstract

The utility model relates to the technical field of energy storage cabinets, in particular to an outdoor energy storage cabinet which comprises a cabinet body, a battery module, a busbar and a power converter. Wherein the power converter is fixed on the outer wall of the cabinet; a first mounting cavity and a second mounting cavity which are arranged at an interval are formed in the cabinet, the battery module is arranged in the first mounting cavity, and the busbar is arranged in the second mounting cavity; the busbar is connected to the battery module and the power converter, respectively. According to the outdoor energy storage cabinet provided by the invention, the battery module and the busbar are integrated in the cabinet, and the power converter is externally hung on the outer wall of the cabinet, so that the three modules are integrated together, the integration level is high, the occupied space is small, and meanwhile, the overall carrying is convenient.

Description

Technical Field

[0001] The present application relates to the technical field of energy storage cabinets, and in particular to an outdoor energy storage cabinet. Background Art

[0002] At present, the outdoor energy storage cabinet and the energy storage inverter or energy storage converter need to be connected through a bus structure, wherein the bus structure is installed in an independent bus cabinet. The independent structural configuration of the outdoor energy storage cabinet, bus cabinet and energy storage inverter or energy storage converter has poor integration and occupies a large space. Utility Model Content

[0003] The purpose of this application is to provide an outdoor energy storage cabinet, which to a certain extent solves the technical problems of independent structural configuration of outdoor energy storage cabinets, junction cabinets and energy storage inverters or energy storage converters in the prior art, which have poor integration and occupy a large space.

[0004] The present application provides an outdoor energy storage cabinet, comprising: a cabinet, a battery module, a bus and a power converter; wherein the power converter is fixed to the outer wall of the cabinet; the cabinet is formed with a first installation cavity and a second installation cavity arranged at intervals, and the battery module is arranged in the first installation cavity, and the bus is arranged in the second installation cavity; the bus is respectively connected to the battery module and the power converter.

[0005] In the above technical solution, further, the outdoor energy storage cabinet also includes a waterproof mounting plate, which is detachably mounted in the second mounting cavity of the cabinet; the waterproof mounting plate is formed with a mounting through hole; the cabinet is formed with a through opening, and the through opening is located below the waterproof mounting plate;

[0006] A gland joint is installed in the installation through hole, and the cable connected between the bus and the power converter is installed in the gland joint; or, the cable connected between the bus and the power converter is installed in the installation through hole and sealed by sealing mud or fireproof mud.

[0007] In any of the above technical solutions, further, the waterproof mounting plate is detachably connected to the cabinet via a first fastening member.

[0008] In any of the above technical solutions, further, the outdoor energy storage cabinet also includes a sealing ring, and the sealing ring is fixed between the waterproof mounting plate and the cabinet.

[0009] In any of the above technical solutions, further, along the height direction of the cabinet, the waterproof mounting plate is arranged close to the bottom of the cabinet.

[0010] In any of the above technical solutions, further, the cabinet includes a frame, an auxiliary mounting plate and a plurality of sealing plates; wherein the plurality of sealing plates are fixed to the outside of the frame to form the cabinet; the auxiliary mounting plate is fixed to the inside of the frame, and the bus is fixed to the auxiliary mounting plate.

[0011] In any of the above technical solutions, further, any two adjacent sealing plates are overlapped together, and at least one of them is arranged in an L-shape at the overlapped portion.

[0012] In any of the above technical solutions, further, the cabinet also includes a support column, the support column is installed on the auxiliary mounting plate, and the bus is detachably installed on an end of the support column away from the auxiliary mounting plate.

[0013] In any of the above technical solutions, further, the busbar includes an AC busbar and a DC busbar, and along the thickness direction of the cabinet, the AC busbar and the DC busbar are respectively arranged on opposite sides of the second installation cavity.

[0014] In any of the above technical solutions, further, the AC busbars are multiple in number and arranged in rows, and each row of AC busbars is arranged along the height direction of the cabinet.

[0015] In any of the above technical solutions, further, the number of the AC busbars is multiple and they are arranged in two rows, and the two rows of AC busbars are arranged in sequence and at intervals along the length direction of the cabinet.

[0016] In any of the above technical solutions, further, the number of the DC busbars is multiple and they are arranged in rows, and each row of AC busbars is arranged along the height direction of the cabinet.

[0017] In any of the above technical solutions, further, the DC busbar includes a first bus portion, a second bus portion and a third bus portion; wherein the second bus portion and the third bus portion are respectively detachably connected to the first bus portion.

[0018] In any of the above technical solutions, further, a first opening and a second opening arranged at intervals are formed on opposite sides of the cabinet, and the first opening corresponds to and is connected to the first installation cavity, and the second opening corresponds to and is connected to the second installation cavity; the first opening is equipped with a first cabinet door that can be opened or closed, and the second opening is equipped with a second cabinet door that can be opened or closed.

[0019] In any of the above technical solutions, further, the outdoor energy storage cabinet also includes a supporting bottom frame and a second fastening member; wherein the supporting bottom frame is fixed to the bottom of the cabinet along the height direction; the second fastening member is fixed to the supporting bottom frame, and the second fastening member is used to be fixed at the target location.

[0020] In any of the above technical solutions, further, the power converter is an energy storage inverter or an energy storage converter.

[0021] Compared with the prior art, the beneficial effects of this application are:

[0022] The outdoor energy storage cabinet provided in the present application integrates the battery module and the bus bar inside the cabinet, and hangs the power converter on the outer wall of the cabinet, thereby integrating the three modules together, with high integration, small space occupation, and easy overall transportation.

[0023] In addition, the bus includes an AC bus and a DC bus to meet different usage requirements, and the two are spaced apart on both sides to achieve partitioned work, avoid mutual interference, and facilitate subsequent separate maintenance.

[0024] In addition, the cabinet's cable inlets and outlets are equipped with removable waterproof covers, which not only ensure waterproofing but also facilitate subsequent disassembly, maintenance or replacement.

[0025] In addition, the two adjacent sealing plates on the outside of the cabinet are further waterproofed through the design of a double L-shaped structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 A schematic diagram of the structure of an outdoor energy storage cabinet provided in an embodiment of the present application;

[0028] Figure 2 for Figure 1 A schematic diagram of the enlarged structure at A;

[0029] Figure 3 for Figure 1 A schematic diagram of the enlarged structure at B;

[0030] Figure 4 Another structural schematic diagram of an outdoor energy storage cabinet provided in an embodiment of the present application;

[0031] Figure 5 for Figure 4 A schematic diagram of the enlarged structure at C;

[0032] Figure 6 for Figure 4 A schematic diagram of the enlarged structure at D;

[0033] Figure 7 Another structural schematic diagram of an outdoor energy storage cabinet provided in an embodiment of the present application;

[0034] Figure 8 for Figure 7 Cross-sectional view along section EE;

[0035] Fig. 9 for Figure 8 A schematic diagram of the enlarged structure at F;

[0036] Fig.10 for Figure 8 Schematic diagram of the enlarged structure at G;

[0037] Fig.11 A schematic diagram of the structure of an outdoor energy storage cabinet provided in an embodiment of the present application;

[0038] Fig.12 Another structural schematic diagram of an outdoor energy storage cabinet provided in an embodiment of the present application.

[0039] Reference numerals:

[0040] 1-cabinet, 11-rack, 12-covering plate, 121-first vertical plate, 122-first horizontal plate, 123-second horizontal plate, 124-third vertical plate, 125-third horizontal plate, 126-fourth vertical plate, 127-fourth horizontal plate, 13-auxiliary mounting plate, 14-support column, 15-first cabinet door, 16-second cabinet door, 17-third cabinet door, 18-fourth cabinet door, 2-battery module, 3-bus, 31-AC bus, 3 2-DC bus, 321-DC positive bus, No. 3211-1 first bus, No. 3212-2 second bus, No. 3213-3 third bus, 322-DC negative bus, No. 3221-4 first bus, No. 3222-5 second bus, No. 3223-6 third bus, 4-power converter, 5-waterproof mounting plate, 6-first fastening member, 7-sealing ring, 8-support bottom frame, 9-second fastening member. DETAILED DESCRIPTION

[0041] The technical solution of the present application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0042] The components of the embodiments of the present application generally described and shown in the accompanying drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the application claimed, but merely represents the selected embodiments of the present application.

[0043] Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of this application.

[0044] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0045] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0046] Refer to the following Figures 1 to 12 An outdoor energy storage cabinet according to some embodiments of the present application is described.

[0047] See also Figure 1 , Figure 2 , Figure 4 , Figure 5 , Fig.11 and Fig.12 As shown, an embodiment of the present application provides an outdoor energy storage cabinet 1, comprising: a cabinet 1, a battery module 2, a bus 3 and a power converter 4; wherein the power converter 4 is fixed to the outer wall of the cabinet 1; the cabinet 1 is formed with a first installation cavity and a second installation cavity which are arranged at intervals, and the battery module 2 is arranged in the first installation cavity, and the bus 3 is arranged in the second installation cavity; the bus 3 is respectively connected to the battery module 2 and the power converter 4.

[0048] Based on the structure described above, it can be known that the outdoor energy storage cabinet 1 provided in the present application integrates the battery module 2 and the bus 3 inside the cabinet 1, and hangs the power converter 4 on the outer wall of the cabinet 1, thereby integrating the three major modules together, with high integration, small space occupation, and easy overall transportation.

[0049] Further, preferably, the power converter 4 is an energy storage inverter or an energy storage converter.

[0050] Further, preferably, there are three power converters 4 , but this is not limited thereto, and the number of power converters 4 may also be one, two, or more than three, such as four, five, and so on.

[0051] In this embodiment, preferably, Figure 3 and Figure 6 As shown, the outdoor energy storage cabinet 1 also includes a waterproof mounting plate 5, which is detachably mounted in the second mounting cavity of the cabinet 1; the waterproof mounting plate 5 is formed with a mounting through hole; the cabinet 1 is formed with a through opening, and the through opening is located below the waterproof mounting plate 5, for avoiding the cables described below;

[0052] A gland connector is installed in the installation through hole, and the cable connected between the bus bar 3 and the power converter 4 is installed in the gland connector.

[0053] According to the structure described above, it can be seen that the outdoor energy storage cabinet 1 is equipped with a detachable waterproof mounting plate 5 for the incoming and outgoing lines, which is convenient for later disassembly and maintenance.

[0054] Further, preferably, the number of mounting through holes and gland joints are both multiple and correspond one to one, and are selected according to actual needs.

[0055] Further, preferably, two support beams arranged in parallel and spaced apart are provided at the bottom of the frame 11 described below, and the waterproof mounting plate 5 is fixed on the two support beams to realize bottom wiring, which is not easy to interfere with other structures and ensures beautiful appearance.

[0056] It should be noted that waterproofing is not limited to the above-mentioned structure using a gland joint. The following structure can also be used: the cable connected between the bus 3 and the power converter 4 is directly installed in the installation through hole and sealed with sealing mud or fireproof mud to achieve waterproofing.

[0057] In this embodiment, preferably, Figure 3 and Figure 6As shown, the waterproof mounting plate 5 and the cabinet 1 are detachably connected by a first fastening member 6 such as a screw or a bolt, which is a commonly used detachable connection method, and is convenient for installation and disassembly. Of course, it is not limited to this. The waterproof mounting plate 5 and the cabinet 1 can also adopt a detachable connection method such as a snap-on connection, which can be selected according to actual needs.

[0058] In this embodiment, preferably, Figure 3 and Figure 6 As shown, the outdoor energy storage cabinet 1 also includes a sealing ring 7 , which is fixed between the waterproof mounting plate 5 and the cabinet 1 .

[0059] According to the structure described above, the sealing ring 7 plays a sealing role to prevent water from entering the cabinet 1.

[0060] Further, preferably, the waterproof installation plate 5 is square, and correspondingly, the sealing ring 7 is also square. Of course, it is not limited to this, and the shape of the waterproof installation plate 5 can also be designed according to actual needs.

[0061] In this embodiment, preferably, Figure 1 , Fig.11 and Fig.12 As shown, the cabinet 1 includes a frame 11, an auxiliary mounting plate 13 and a plurality of sealing plates 12; wherein the plurality of sealing plates 12 are fixed to the outside of the frame 11 to form the cabinet 1; the auxiliary mounting plate 13 is fixed to the inside of the frame 11, and the bus 3 is fixed to the auxiliary mounting plate 13.

[0062] According to the structure described above, the frame 11 is used as a supporting frame, the sealing plate 12 serves to cover the frame 11 , and the auxiliary mounting plate 13 serves to support the busbar 3 .

[0063] Further, preferably, the auxiliary mounting plate 13 and the frame 11 can be connected by welding or bolts.

[0064] Further, preferably, the plurality of sealing plates 12 and the frame 11 may be connected to each other by welding or bolts.

[0065] Further, preferably, the cabinet 1 further comprises a partition plate fixed inside the rack 11 to separate the inside of the rack 11 into the aforementioned two installation cavities.

[0066] Further, preferably, the frame 11 is a vertical rectangular parallelepiped structure, and correspondingly, the number of the sealing plates 12 is six, and they are respectively arranged corresponding to the six faces of the frame 11. It can be seen that the frame 11 with this structure has a regular structure and is easy to manufacture.

[0067] In this embodiment, preferably, Figures 7 to 10As shown, any two adjacent sealing plates 12 are overlapped together, and the overlapped parts of the two are both L-shaped (of course, not limited to this, only one of the two adjacent sealing plates 12 may be L-shaped, which is designed according to actual needs). In order to facilitate the understanding of the above structure, one of the vertically arranged sealing plates, the top sealing plate matched with the top end thereof, and the bottom sealing plate matched with the bottom end thereof are taken as examples for explanation;

[0068] Among them, the vertically arranged sealing plate includes a first vertical plate 121 and a first horizontal plate 122 and a second horizontal plate 123 respectively connected to the top and bottom of the first vertical plate 121, the top sealing plate includes a third vertical plate 124 and a third horizontal plate 125, the bottom sealing plate includes a fourth vertical plate 126 and a fourth horizontal plate 127, the two ends of the first vertical sealing plate 12 along its height direction are respectively abutted against the third vertical plate 124 and the fourth vertical plate 126, the first horizontal plate 122 is abutted against the third horizontal plate 125, and the second horizontal plate 123 is abutted against the fourth horizontal plate 127.

[0069] According to the structure described above, the two adjacent sealing plates 12 are designed with a double L-shaped matching structure. Rainwater outside the cabinet needs to pass through a longer path and overcome its own weight before entering the cabinet 1, thereby greatly enhancing the waterproof ability of the cabinet 1.

[0070] Furthermore, preferably, the first vertical sealing plate 12 and the third vertical plate 124 and the fourth vertical plate 126 can be further filled with glue to achieve a sealing effect; the first horizontal plate 122 and the third horizontal plate 125, and the second horizontal plate 123 and the fourth horizontal plate 127 can be further filled with glue to achieve a sealing effect.

[0071] In this embodiment, preferably, Figure 2 As shown, the cabinet 1 further comprises a support column 14 , which is mounted on the auxiliary mounting plate 13 , and the busbar 3 is detachably mounted on one end of the support column 14 away from the auxiliary mounting plate 13 .

[0072] Based on the structure described above, it can be known that the support column 14 supports the bus 3 and forms a space between the bus 3 and the auxiliary mounting plate 13, which helps to dissipate heat, ensure the bus function, and help to extend the service life of the bus 3.

[0073] Further, preferably, there are multiple support columns 14 that are evenly arranged.

[0074] In this embodiment, preferably, Figure 1 , Figure 2 , Figure 4 and Figure 5As shown, the busbar 3 includes an AC busbar 31 and a DC busbar 32 , and along the thickness direction of the cabinet 1 , the AC busbar 31 and the DC busbar 32 are respectively disposed on opposite sides of the second installation cavity.

[0075] According to the structure described above, the outdoor energy storage cabinet 1 provided by the present application is equipped with an AC bus 31 and a DC bus 32, which can respectively perform AC bus and DC bus to meet different needs, and the DC bus 32 and the AC bus 31 are respectively arranged at intervals on both sides to achieve partitioned work and avoid confusion, mutual interference and other problems. It should be noted that only the AC bus 31 can be designed in the outdoor energy storage cabinet, which is selected according to actual needs.

[0076] Further, preferably, both the DC busbar 32 and the AC busbar 31 are provided with the aforementioned auxiliary mounting plate 13 .

[0077] Further, preferably, a waterproof mounting plate 5 is provided below the DC busbar 32 and the AC busbar 31 for installing cables, and is provided with the aforementioned sealing ring 7 and the like to play a waterproof role.

[0078] In this embodiment, preferably, Figure 1 As shown, there are multiple AC busbars 31 arranged in rows, and each row of AC busbars 31 is arranged along the height direction of the cabinet 1 .

[0079] Further, preferably, the number of the AC busbars 31 is plural and they are arranged in two rows, and the two rows of AC busbars 31 are sequentially spaced apart along the length direction of the cabinet 1 .

[0080] According to the structure described above, the present application designs two columns of bus structures, which correspond to the grid side and load side of the inverter or converter with grid-connected and off-grid functions, wherein one column of AC bus 31 is connected to the grid side, and the other column of AC bus 31 is connected to the load side.

[0081] Further, preferably, each column of AC bus 31 includes four bus bars 3. Of course, it is not limited thereto, and may include one bus bar 3, two bus bars 3, three bus bars 3, or a number of bus bars 3 greater than four, such as five bus bars 3 or six bus bars 3, etc., depending on the number of external power converters 4 and the number of battery clusters.

[0082] It should be noted that: for an inverter or converter without off-grid function, it only has a grid side, so only one busbar 3 can be designed to be connected to the grid side.

[0083] In this embodiment, preferably, Figure 5As shown, there are multiple DC busbars 32 arranged in rows, and each row of DC busbars 32 is arranged along the height direction of the cabinet 1, so the arrangement is more regular and meets the requirements of DC busbars.

[0084] Further, preferably, the number of columns of the DC bus 32 is one, and this column of DC bus includes two DC bus bars 32, one of which is used as a positive bus, i.e., a DC positive bus bar 321, and the other is used as a negative bus, i.e., a DC negative bus bar 322. Of course, this is not limited to this. The number of DC bus bars 32 included in each column of DC bus bars 32 may be greater than two and an even number, such as four, six, etc. In addition, the number of columns of the DC bus bars 32 is not limited to one, but may also be greater than one column, such as two columns or three columns, etc.

[0085] Further, preferably, the DC positive bus 321 and the DC negative bus 322 both include a first bus portion, a second bus portion and a third bus portion, and the second bus portion and the third bus portion are respectively detachably connected to the first bus portion, and preferably, the detachable connection can be achieved by screws or bolts.

[0086] Based on the above and in order to distinguish the busbars included in the DC positive busbar 321 and the DC negative busbar 322, the DC positive busbar 321 includes the first busbar 3211 No. 1, the second busbar 3212 No. 2 and the third busbar 3213 No. 3, and the DC negative busbar 322 includes the first busbar 3221 No. 4, the second busbar 3222 No. 5 and the third busbar 3223 No. 6. When the outdoor energy storage cabinet includes two battery clusters, and the DC sides of the two battery clusters are connected in parallel for output, the first busbar 3211 No. 1 and the first busbar 3221 No. 4 (i.e., the second busbar 3212 No. 2) are connected to the DC positive busbar 3211 No. 1 and the second busbar 3212 No. 2 and the third busbar 3213 No. 3, respectively. 3212 and No. 3 third bus 3213, No. 5 second bus 3222 and No. 6 third bus 3223 are connected), No. 1 first bus 3211 is connected to the positive pole, and No. 4 first bus 3221 is connected to the negative pole; when the outdoor energy storage cabinet includes two battery clusters, and the DC sides of the two battery clusters are output respectively, No. 1 first bus 3211 and No. 4 first bus 3221 are removed, No. 2 second bus 3212 and No. 5 second bus 3222 are connected to the positive and negative poles of the first battery cluster, and No. 3 third bus 3213 and No. 6 third bus 3223 are connected to the positive and negative poles of the second battery cluster. Note: This is just an example. When the outdoor energy storage cabinet includes different battery clusters, the number of DC busbars 32 required and the number of busbars included in the DC busbar 32 can also be adjusted according to actual needs.

[0087] In this embodiment, preferably, Fig.11 and Fig.12As shown, the cover plates 12 on the opposite sides of the cabinet 1 are respectively formed with a first opening and a second opening which are spaced apart, and the first opening corresponds to and is connected to the first installation cavity, and the second opening corresponds to and is connected to the second installation cavity; the first opening is provided with a first cabinet door 15 which can be opened or closed, and the second opening is provided with a second cabinet door 16 which can be opened or closed.

[0088] It should be noted that in order to further distinguish the four cabinet doors in different positions, they are named as follows: the first cabinet door 15, the second cabinet door 16, the third cabinet door 17 and the fourth cabinet door 18, wherein the first cabinet door 15 and the second cabinet door 16 are located on the same side of the cabinet 1, and the third cabinet door 17 and the fourth cabinet door 18 are located on the other opposite side of the cabinet 1.

[0089] According to the structure described above, the battery module 2, the AC bus structure and the DC bus structure are respectively provided with cabinet doors that can be opened or closed, and the doors are opened on both sides, so that the structures at different positions in the two installation cavities can be maintained separately without affecting each other.

[0090] Notice:

[0091] In this embodiment, preferably, Figure 1 As shown, the outdoor energy storage cabinet 1 also includes a supporting bottom frame 8 and a second fastening member 9; wherein the supporting bottom frame 8 is fixed to the bottom of the cabinet 1 along the height direction; the second fastening member 9 is fixed to the supporting bottom frame 8, and the second fastening member 9 is used to be fixed to the target location.

[0092] According to the structure described above, the cabinet 1 is fixed to a target location such as the ground by the second fastening member 9 such as screws or bolts, so that the cabinet 1 is more stable and less likely to fall over.

[0093] Further, preferably, along the thickness direction of the cabinet 1 , that is, the width direction of the supporting bottom frame 8 , a plurality of second fastening members 9 are disposed sequentially and spaced apart on opposite sides of the supporting bottom frame 8 .

[0094] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An outdoor energy storage cabinet, characterized in that: include: A cabinet, a battery module, a bus and a power converter; wherein the power converter is fixed to the outer wall of the cabinet; the cabinet is formed with a first installation cavity and a second installation cavity which are spaced apart, and the battery module is arranged in the first installation cavity, and the bus is arranged in the second installation cavity; the bus is respectively connected to the battery module and the power converter.

2. The outdoor energy storage cabinet according to claim 1, characterized in that: The outdoor energy storage cabinet further includes a waterproof mounting plate, which is detachably mounted in the second mounting cavity of the cabinet; the waterproof mounting plate is formed with a mounting through hole; the cabinet is formed with a through opening, and the through opening is located below the waterproof mounting plate; A gland joint is installed in the installation through hole, and the cable connected between the bus and the power converter is installed in the gland joint; or, the cable connected between the bus and the power converter is installed in the installation through hole and sealed by sealing mud or fireproof mud.

3. The outdoor energy storage cabinet according to claim 2, characterized in that: The waterproof mounting plate is detachably connected to the cabinet via a first fastening member; and / or The outdoor energy storage cabinet further includes a sealing ring, which is fixed between the waterproof mounting plate and the cabinet; and / or Along the height direction of the cabinet, the waterproof mounting plate is arranged close to the bottom of the cabinet.

4. The outdoor energy storage cabinet according to claim 1, characterized in that: The cabinet includes a frame, an auxiliary mounting plate and a plurality of sealing plates; wherein the plurality of sealing plates are fixed to the outside of the frame to form the cabinet; the auxiliary mounting plate is fixed to the inside of the frame, and the bus is fixed to the auxiliary mounting plate.

5. The outdoor energy storage cabinet according to claim 4, characterized in that: Any two adjacent sealing plates are overlapped together, and at least one of them is arranged in an L-shape at the overlapped portion; and / or The cabinet further comprises a supporting column, wherein the supporting column is mounted on the auxiliary mounting plate, and the busbar is detachably mounted on an end of the supporting column away from the auxiliary mounting plate.

6. The outdoor energy storage cabinet according to claim 1, characterized in that: The busbars include an AC busbar and a DC busbar, and along the thickness direction of the cabinet, the AC busbar and the DC busbar are respectively arranged on two opposite sides of the second installation cavity.

7. The outdoor energy storage cabinet according to claim 6, characterized in that: The AC busbars are multiple in number and arranged in rows, and each row of AC busbars is arranged along the height direction of the cabinet.

8. The outdoor energy storage cabinet according to claim 7, characterized in that: The AC busbars are multiple in number and arranged in two rows, and the two rows of AC busbars are arranged in sequence and at intervals along the length direction of the cabinet.

9. The outdoor energy storage cabinet according to claim 7, characterized in that: The DC busbars are multiple and arranged in rows, and each row of DC busbars is arranged along the height direction of the cabinet; and / or Any of the DC busbars includes a first bus portion, a second bus portion and a third bus portion, and the second bus portion and the third bus portion are detachably connected to the first bus portion, respectively.

10. The outdoor energy storage cabinet according to claim 1, characterized in that: A first opening and a second opening are formed on opposite sides of the cabinet, and the first opening corresponds to and is in communication with the first installation cavity, and the second opening corresponds to and is in communication with the second installation cavity; the first opening is provided with a first cabinet door that can be opened or closed, and the second opening is provided with a second cabinet door that can be opened or closed; and / or The outdoor energy storage cabinet further includes a supporting bottom frame and a second fastening member; wherein the supporting bottom frame is fixed to the bottom of the cabinet along the height direction; the second fastening member is fixed to the supporting bottom frame, and the second fastening member is used to be fixed at the target location; and / or The power converter is an energy storage inverter or an energy storage converter.

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