Energy storage converter and energy storage container

Abstract

The utility model provides an energy storage converter and an energy storage container. The energy storage converter comprises a housing; the fusing protection assembly is arranged in the shell, and the fusing protection assembly comprises a direct current fuse and an alternating current fuse; the high-voltage control assembly is arranged in the shell, and the high-voltage control assembly comprises an isolating switch and an alternating-current circuit breaker; the conversion control module is arranged in the shell and is configured to convert direct current loaded on the direct current side of the conversion control module and alternating current loaded on the alternating current side of the conversion control module; wherein the isolating switch is connected in series with the direct current fuse, and is electrically connected to the direct current side of the conversion control module; the AC circuit breaker is connected in series with the AC fuse, and is electrically connected to the AC side of the conversion control module.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage, and in particular to an energy storage converter and an energy storage container. Background Art

[0002] In the related art, most of the energy storage inverters used in energy storage containers do not have a power distribution function. A high-voltage box needs to be separately configured inside the energy storage container, and the AC / DC disconnection function is further configured through the high-voltage box. Since multiple battery clusters need to be configured inside the energy storage container, the energy storage inverter and the high-voltage box are configured inside the energy storage container at the same time, which will cause the overall size design of the energy storage container to exceed the standard. Utility Model Content

[0003] The embodiments of the utility model provide an energy storage inverter and an energy storage container, which can improve the technical problem that the energy storage container size design exceeds the standard due to the simultaneous configuration of the energy storage inverter and the high-voltage box inside the energy storage container.

[0004] In a first aspect, an embodiment of the utility model provides an energy storage converter, the energy storage converter comprising:

[0005] case;

[0006] A fuse protection component is arranged inside the housing, and the fuse protection component includes a DC fuse and an AC fuse;

[0007] A high-voltage control assembly is arranged inside the housing, and the high-voltage control assembly includes an isolating switch and an AC circuit breaker;

[0008] A conversion control module, disposed inside the housing, configured to convert direct current loaded on the DC side of the conversion control module and alternating current loaded on the AC side of the conversion control module;

[0009] The isolating switch is connected in series with the DC fuse and is electrically connected to the DC side of the conversion control module; the AC circuit breaker is connected in series with the AC fuse and is electrically connected to the AC side of the conversion control module.

[0010] In one embodiment, the isolating switch and the DC fuse are configured to be electrically connected between the battery cluster and the DC side of the conversion control module, and the AC circuit breaker and the AC fuse are configured to be electrically connected between the AC side of the conversion control module and an external load.

[0011] In one embodiment, a first bracket is further included, the shell includes a first shell side plate and a second shell side plate which are arranged opposite to each other, the first bracket is arranged close to the first shell side plate, and the isolating switch and the DC fuse are both fixed to the first bracket.

[0012] In one embodiment, the first bracket includes a first bracket bottom plate and a first bracket top plate that are relatively arranged, and a first bracket side plate connected between the first bracket bottom plate and the first bracket top plate, the first bracket top plate, the first bracket bottom plate and the first bracket side plate enclose a receiving cavity, the isolating switch is fixed to one side of the first bracket side plate and is located outside the receiving cavity, and the DC fuse is fixed to the other side of the first bracket side plate and is located inside the receiving cavity.

[0013] In one embodiment, a second bracket is further included. The second bracket is arranged close to the second shell side plate, and the AC circuit breaker and the AC fuse are both fixed to the second bracket.

[0014] In one embodiment, the second bracket includes a second bracket bottom plate and a second bracket side plate bent and connected to the second bracket bottom plate, the AC circuit breaker is fixed to the second bracket side plate, and the AC fuse is fixed to the second bracket bottom plate.

[0015] In one embodiment, the shell also includes a third shell side panel connected between the first shell side panel and the second shell side panel, and a first handle and a second handle are spaced apart on the third shell side panel, and both the first handle and the second handle are exposed on the outside of the third shell side panel, the first handle is connected to the isolating switch and is used to control the isolating switch, and the second handle is connected to the AC circuit breaker and is used to control the AC circuit breaker.

[0016] In one embodiment, a battery manager is further disposed in the housing. The battery manager is disposed between the isolating switch and the AC circuit breaker. The battery manager is connected to the DC side of the conversion control module.

[0017] In one embodiment, the height of the shell is set to 100 mm to 300 mm, and / or the length or width of the shell is set to 700 mm to 900 mm.

[0018] In a second aspect, an embodiment of the utility model provides an energy storage container, which includes an energy storage inverter and a plurality of battery clusters, wherein the energy storage inverter includes the above-mentioned energy storage inverter, and the battery cluster is electrically connected to the energy storage inverter.

[0019] Beneficial effects of the embodiments of the utility model:

[0020] In the embodiment of the utility model, by integrating AC fuses and AC circuit breakers in the AC side circuit of the energy storage inverter, and integrating DC fuses and isolating switches in the DC side circuit, that is, integrating high-voltage control components inside the energy storage inverter, there is no need to separately configure a high-voltage box inside the energy storage container configured with the above-mentioned energy storage inverter, thereby effectively improving the technical problem of exceeding the size design of the energy storage container due to configuring the energy storage inverter and the high-voltage box inside the energy storage container at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 It is a three-dimensional diagram of an energy storage converter provided by an embodiment of the utility model at one angle;

[0023] Figure 2 It is a schematic diagram of the electrical appliances inside the energy storage converter provided by the embodiment of the utility model;

[0024] Figure 3 This is another internal structural diagram of the energy storage converter improved by the embodiment of the utility model from another angle;

[0025] Figure 4 It is an internal structure diagram of the energy storage converter provided by an embodiment of the utility model from another angle;

[0026] Figure 5 It is a three-dimensional diagram of the disconnector provided by the implementation of the utility model and connected with the DC fuse;

[0027] Figure 6 It is a three-dimensional diagram of the AC circuit breaker and AC fuse provided in the embodiment of the utility model being connected;

[0028] Figure Number:

[0029] 1. Energy storage converter; 10. Shell; 11. First shell side plate; 12. Second shell side plate; 13. Third shell side plate; 14. AC terminal; 2. Fuse protection assembly; 21. DC fuse; 22. AC fuse; 3. High voltage control assembly; 31. Isolating switch; 311. First handle; 32. AC circuit breaker; 321. Second handle; 4. Conversion control module; 41. DC side of conversion control module; 411. DC contactor; 42. Conversion AC side of control module; 421, filter; 422, relay; 423, board end conductive seat; 43, inverter; 51, first copper bar; 52, second copper bar; 53, third copper bar; 54, fourth copper bar; 55, three-way connection; 6, first bracket; 61, first bracket top plate; 62, first bracket bottom plate; 63, first bracket side plate; 7, second bracket; 71, second bracket bottom plate; 72, second bracket side plate; 8, heat dissipation structure; 9, battery manager; DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model. In addition, it should be understood that the specific implementation methods described herein are only used to illustrate and explain the utility model, and are not used to limit the utility model. In the utility model, unless otherwise stated, the directional words used, such as "upper" and "lower", generally refer to the upper and lower parts of the device in actual use or working state, specifically the drawing direction in the accompanying drawings; while "inside" and "outside" refer to the outline of the device.

[0031] An embodiment of the utility model provides an energy storage container, which includes a box body, multiple battery clusters and a current storage inverter, wherein the multiple battery clusters are arranged in a matrix inside the box body, and the multiple battery clusters are connected to the energy storage inverter. The battery clusters provide DC power. Usually, the battery clusters are connected to the DC input port of the energy storage inverter through a DC cable. The energy storage inverter converts the DC power input from the battery cluster into AC power. The AC output port of the energy storage inverter is connected to a power grid or a load device through an AC cable.

[0032] In the related art, most of the energy storage inverters used in energy storage containers do not have a power distribution function. A high-voltage box needs to be separately configured inside the energy storage container, and the AC / DC disconnection function is further configured through the high-voltage box. Since multiple battery clusters need to be configured inside the energy storage container, the energy storage inverter and the high-voltage box are configured inside the energy storage container at the same time, which will cause the overall size design of the energy storage container to exceed the standard.

[0033] In the embodiment of the utility model, the high-voltage box and the energy storage converter in the related art are integrated to further optimize the internal space layout of the energy storage container.

[0034] Specifically, refer to Figure 1 and Figure 2 An embodiment of the utility model provides an energy storage converter 1, the energy storage converter 1 includes a housing 10 and a fuse protection component 2 and a high-voltage control component 3 arranged inside the housing 10, the fuse protection component 2 includes a DC fuse 21 and an AC fuse 22, and the high-voltage control component 3 includes an isolating switch 31 and an AC circuit breaker 32. The isolating switch 31 and the DC fuse 21 are integrated on the same DC line; the AC circuit breaker 32 and the AC fuse 22 are integrated on the same AC line.

[0035] The DC fuse 21 is arranged in the DC side circuit of the energy storage converter 1 to provide overload protection, short circuit protection and safety protection. When the current in the DC side circuit of the energy storage converter 1 exceeds the rated value, the DC fuse 21 will blow to prevent overload from damaging the battery cluster or other equipment. When a short circuit fault occurs in the DC side circuit of the energy storage converter 1, the DC fuse 21 can quickly cut off the current to prevent the short circuit fault from expanding.

[0036] The above-mentioned AC fuse 22 is arranged in the AC side circuit of the energy storage inverter 1 to provide overload protection, short circuit protection and safety protection. When the current in the AC side circuit of the energy storage inverter 1 exceeds the rated value, the AC fuse 22 will blow to prevent overload damage to the equipment. When a short circuit fault occurs in the AC side circuit of the energy storage inverter 1, the AC fuse 22 can quickly cut off the current to prevent the short circuit fault from expanding.

[0037] The above-mentioned AC circuit breaker 32 and isolating switch 31 are key components of the high-voltage box. The AC circuit breaker 32 is arranged in the AC side circuit to provide overload protection and short-circuit protection. When the current in the circuit exceeds the set value, the AC circuit breaker 32 will automatically trip and cut off the circuit. In one example, the AC circuit breaker 32 adopts the NDM3 series plastic case circuit breaker. The isolating switch 31 is arranged in the DC side circuit. The function of the isolating switch 31 is to isolate the circuit, for example, to isolate the connection between the energy storage container and the external power supply system. In one example, the isolating switch 31 adopts the NDG3VH series isolating switch.

[0038] The AC side circuit of the energy storage inverter 1 integrates an AC fuse 22 and an AC circuit breaker 32, and the DC side circuit thereof integrates a DC fuse 21 and an isolating switch 31, that is, the high-voltage control component 3 is integrated inside the energy storage inverter 1, so that there is no need to separately configure a high-voltage box inside the energy storage container configured with the energy storage inverter 1, thereby effectively improving the technical problem of exceeding the size design of the energy storage container due to configuring the energy storage inverter and the high-voltage box inside the energy storage container at the same time.

[0039] The inventors have found through research that the energy storage converter 1 integrates the energy storage converter and the high-voltage box. Compared with the separate combination of the energy storage converter and the high-voltage box, the volume of the energy storage converter 1 is reduced by at least 20%, which is conducive to fully optimizing the space utilization inside the energy storage container. Furthermore, integrating the energy storage converter and the high-voltage box into an integrated energy storage converter 1 can further optimize the cost of its accessory combination.

[0040] Further references Figure 1 and Figure 2 As shown, a conversion control module 4 is also provided in the housing 10, and the conversion control module 4 includes a DC side 41 of the conversion control module and an AC side 42 of the conversion control module. The AC side 42 of the conversion control module is located on one side of the conversion control module 4, and the DC side 41 of the conversion control module is located on the other side of the conversion control module 4. The above-mentioned isolating switch 31 is connected in series with the DC fuse 21 and is electrically connected to the DC side 41 of the conversion control module; the AC circuit breaker 32 is connected in series with the AC fuse 22 and is electrically connected to the AC side 42 of the conversion control module.

[0041] The conversion control module 4 includes a control board and an inverter 43 arranged on the control board. The inverter 43 is connected between the DC side 41 of the conversion control module and the AC side 42 of the conversion control module, and is used to convert DC power into constant frequency and constant voltage or frequency and voltage regulated AC power.

[0042] The DC side 41 of the conversion control module also includes a DC contactor 411 arranged on the control board. The DC contactor 411 can realize functions such as connection, disconnection and overload protection of the DC circuit. The DC contactor 411 is further connected between the DC fuse 21 and the inverter 43.

[0043] The AC side 42 of the conversion control module includes a filter 421 and at least one relay 422 arranged on the control board. The filter 421 is connected between the inverter 43 and the relay 422, and the relay 422 is further connected to the input end of the AC fuse 22. The filter 421 is used to filter the AC signal output by the inverter 43 to remove clutter and interference. The function of the relay 422 is to control and switch the AC circuit. The relay 422 is connected to the input end of the AC fuse 22. When the AC circuit is overloaded or short-circuited, the relay 422 will cut off the current to protect the energy storage converter 1 from damage.

[0044] The isolating switch 31 and the DC fuse 21 are configured to be electrically connected between the battery cluster and the DC side 41 of the conversion control module, and the AC circuit breaker 32 and the AC fuse 22 are configured to be electrically connected between the AC side 42 of the conversion control module and an external load. For an energy storage container, the external load includes an external power grid or an electrical device connected to the energy storage container.

[0045] Further references Figures 1 to 4 , the input end of the isolating switch 31 is connected to the battery cluster, the output end of the isolating switch 31 is connected to the input end of the DC fuse 21 through the first copper bar 51, and the output end of the DC fuse 21 is connected to the high voltage point of the DC side 41 of the conversion control module through the second copper bar 52. In this way, by connecting the isolating switch 31 and the DC fuse 21 to the DC side 41 of the conversion control module, the DC side control circuit of the conversion control module 4 can be effectively protected to avoid safety hazards caused by excessive current or other abnormal conditions. Further, by using the first copper bar 51 and the second copper bar 52 as conductive connecting materials between the isolating switch 31, the DC fuse 21 and the DC side 41 of the conversion control module, the internal resistance can be further reduced and the power loss of the circuit can be reduced. In addition, by connecting the DC fuse 21 to the high voltage point of the DC side 41 of the conversion control module, the high voltage system connected to multiple battery clusters can be effectively controlled to improve the safety of the system.

[0046] The AC side 42 of the conversion control module is provided with a board-end conductive seat 423, which is arranged on the three-phase outlet point of the control board. The input end of the AC fuse 22 is connected to the board-end conductive seat 423 through the third copper bar 53, and the output end of the AC fuse 22 is connected to the input end of the AC circuit breaker 32 through the fourth copper bar 54. The housing 10 is provided with an AC terminal 14 for external load access, and the output end of the AC circuit breaker 32 is connected to the AC terminal 14 through a three-phase connection line 55. By connecting the AC fuse 22 and the AC circuit breaker 32 to the AC side conversion module of the conversion control module 4 through the third copper bar 53, the overload and short-circuit protection of the circuit can be effectively realized, the safety of the energy storage converter 1 is improved, and the safety risk caused by circuit failure is reduced. By connecting the AC fuse 22 and the AC circuit breaker 32 using the fourth copper bar 54, the AC side circuit transmission signal is stable, and the stability and reliability of the energy storage converter 1 are improved.

[0047] refer to Figure 4 and Figure 5 As shown, the DC fuse 21 and the disconnector 31 are integrated through the first bracket 6. The first bracket 6 is preferably made of a plastic material or a metal material with high strength. The housing 10 includes a first housing side plate 11 and a second housing 12 that are arranged opposite to each other. The first bracket 6 is arranged close to the first housing side plate 11, and the disconnector 31 and the DC fuse 21 are both fixed on the first bracket 6. By using the first bracket 6 to fix the disconnector 31 and the DC fuse 21 at the same time, it is convenient to integrate the disconnector 31 and the DC fuse 21 in a limited space, and further optimize the internal layout of the energy storage converter 1.

[0048] Further references Figure 6The first bracket 6 includes a first bracket bottom plate 62 and a first bracket top plate 61 that are arranged opposite to each other, and a first bracket side plate 63 connected between the first bracket bottom plate 62 and the first bracket top plate 61. The first bracket top plate 61, the first bracket bottom plate 62 and the first bracket side plate 63 enclose a receiving cavity. The isolating switch 31 is fixed to one side of the first bracket side plate 63 and is located outside the receiving cavity. The DC fuse 21 is fixed to the other side of the first bracket side plate 63 and is located inside the receiving cavity. By fixing the isolating switch 31 on one side of the first bracket side plate 63 and locating it outside the receiving cavity, the input end of the isolating switch 31 is conveniently connected to the external battery cluster. By fixing the DC fuse 21 on the other side of the first bracket side plate 63 and locating it inside the receiving cavity, the DC fuse 21 and the isolating switch 31 are isolated by the first bracket side plate 63, thereby preventing the isolating switch 31 or the DC fuse 21 from generating sparks or arcs during operation. If the distance between the isolating switch 31 and the DC fuse 21 is too close, the two will affect each other, thereby causing an accidental short circuit or fire. The distance between the two by the first bracket side plate 63 can effectively reduce the risk.

[0049] refer to Figure 6 As shown, the AC circuit breaker 32 and the AC fuse 22 are integrated through the second bracket 7. The second bracket 7 is preferably made of a plastic material or a metal material with high strength. The second bracket 7 is arranged close to the second housing 12, and the AC circuit breaker 32 and the AC fuse 22 are both fixed on the second bracket 7. By using the second bracket 7 to fix the AC circuit breaker 32 and the AC fuse 22 at the same time, it is convenient to integrate the AC circuit breaker 32 and the AC fuse 22 in a limited space, and further optimize the internal layout of the energy storage converter 1.

[0050] Further references Figure 6 The second bracket 7 includes a second bracket bottom plate 71 and a second bracket side plate 72 which are bent and connected. The AC circuit breaker 32 is fixed on the second bracket side plate 72, and the AC fuse 22 is fixed on the second bracket bottom plate 71. By fixing the AC circuit breaker 32 on the second bracket side plate 72, it is convenient to connect one end of the fourth copper bar 54 to the bottom of the AC circuit breaker 32, and the other end of the fourth copper bar 54 is directly connected to the AC fuse 22, so that the second bracket 7 provides a fixing effect on the AC circuit breaker 32 and the AC fuse 22, and the connection distance of the fourth copper bar 54 between the two is the shortest, thereby improving the assembly efficiency of the energy storage converter 1.

[0051] Further references Figures 1 to 3The housing 10 further includes a third housing side plate 13 connected between the first housing side plate 11 and the second housing 12. A first handle 311 and a second handle 321 are arranged at intervals on the third housing side plate 13. The first handle 311 and the second handle 321 are exposed outside the third housing side plate 13. The first handle 311 is connected to the disconnector 31 and used to control the disconnector 31. The second handle 321 is connected to the AC circuit breaker 32 and used to control the AC circuit breaker 32. By providing the exposed first handle 311, it is convenient to control the opening and closing of the disconnector 31 through the first handle 311. Further, by providing the exposed second handle 321, it is convenient to control the opening and closing of the AC circuit breaker 32 through the second handle 321. Further, the first handle 311 and the second handle 321 are centrally arranged on the third housing side plate 13, which is convenient for users to operate. At the same time, it is also beneficial to integrate the above-mentioned high-voltage control component 3 and the fuse protection component 2 in a limited space.

[0052] like Figure 2 and Figure 4 As shown, a battery manager 9 is also provided in the housing 10, and the battery manager 9 is provided between the isolating switch 31 and the AC circuit breaker 32, and the battery manager 9 is connected to the DC side 41 of the conversion control module. The battery manager 9 is used to manage and monitor the battery cluster inside the energy storage container. By further integrating the battery manager 9 with the above-mentioned energy storage converter 1, compared with configuring the battery manager 9 separately, the energy storage converter 1 integrating the battery manager 9, the high-voltage box and the energy storage converter can further optimize the space layout inside the energy storage container, and at the same time help to reduce the combination cost of its accessories.

[0053] The battery manager 9 is integrated under the conversion control module 4 , which is beneficial for the battery manager 9 to be linked with the conversion control module 4 , and further improves the safety performance of the energy storage container equipped with the energy storage inverter 1 .

[0054] Other electrical components may be further arranged inside the energy storage converter 1 according to its functional requirements, such as a control board, an interface board, a capacitor board and a drive board, which are not listed one by one in the embodiments of the present application.

[0055] Furthermore, since multiple electrical components are integrated inside the energy storage inverter 1, the energy storage inverter 1 also includes a heat dissipation structure 8, which includes multiple fans arranged inside the shell 10, as well as multiple heat dissipation holes arranged on the shell 10 and multiple fans embedded in the shell 10, thereby improving the heat dissipation performance of the energy storage inverter 1.

[0056] Further references Figure 1As shown, the height h of the housing 10 of the energy storage converter 1 is set to 100 mm to 300 mm, and / or the length L or the width w of the housing 10 is set to 700 mm to 900 mm.

[0057] In some embodiments, the height h of the housing 10 of the energy storage converter can be set to 100mm, 150mm, 200mm, 250mm, 300mm, and a value between any two of the above values, or a range between any two of the above values. The length L or width w of the housing 10 of the energy storage converter can be set to 700mm, 750mm, 800mm, 850mm, 900mm, and a value between any two of the above values, or a range between any two of the above values. In one example, the height h of the housing 10 of the energy storage converter 1 is set to 220mm, the length L of the housing 10 is set to 800mm, and the width w of the housing 10 is set to 778mm.

[0058] When the height h of the shell 10 of the energy storage inverter is less than 100 mm, the above-mentioned multiple devices cannot be placed inside the shell 10. When the height h of the shell 10 of the energy storage inverter is greater than 300 mm, the above-mentioned energy storage inverter will occupy more height space inside the energy storage container, which is not conducive to improving the space utilization rate inside the energy storage container.

[0059] When the length L or width w of the shell 10 of the energy storage inverter is less than 700 mm, the above-mentioned multiple devices cannot be placed inside the shell 10. When the length L or width w of the shell 10 of the energy storage inverter is greater than 900 mm, the above-mentioned energy storage inverter will occupy more length space or width space inside the energy storage container, thereby causing the size design of the energy storage container to exceed the standard.

[0060] When the energy storage inverter 1 is configured inside the energy storage container, the positive high-voltage connector and the negative high-voltage connector of each battery cluster can be electrically connected to the input end of the isolating switch 31 of the energy storage inverter. Compared with configuring the energy storage inverter and the high-voltage box separately, the battery cluster needs to be connected to the high-voltage box first, and then the high-voltage box is connected to the energy storage inverter. The energy storage inverter 1 can reduce the wiring harness access and further improve its assembly efficiency.

[0061] The above is a detailed introduction to the embodiments of the present invention. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method and core idea of ​​the present invention. At the same time, for technicians in this field, according to the idea of ​​the present invention, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. An energy storage converter, characterized in that: include: case; A fuse protection component is arranged inside the housing, and the fuse protection component includes a DC fuse and an AC fuse; A high-voltage control assembly is arranged inside the housing, and the high-voltage control assembly includes an isolating switch and an AC circuit breaker; A conversion control module, disposed inside the housing, configured to convert direct current loaded on the DC side of the conversion control module and alternating current loaded on the AC side of the conversion control module; The isolating switch is connected in series with the DC fuse and is electrically connected to the DC side of the conversion control module; the AC circuit breaker is connected in series with the AC fuse and is electrically connected to the AC side of the conversion control module.

2. The energy storage converter according to claim 1, characterized in that: The isolating switch and the DC fuse are configured to be electrically connected between the battery cluster and the DC side of the conversion control module, and the AC circuit breaker and the AC fuse are configured to be electrically connected between the AC side of the conversion control module and an external load.

3. The energy storage converter according to claim 1, characterized in that: It also includes a first bracket, the shell includes a first shell side plate and a second shell side plate that are arranged opposite to each other, the first bracket is arranged close to the first shell side plate, and the isolating switch and the DC fuse are both fixed to the first bracket.

4. The energy storage converter according to claim 3, characterized in that: The first bracket includes a first bracket bottom plate and a first bracket top plate that are arranged opposite to each other, and a first bracket side plate connected between the first bracket bottom plate and the first bracket top plate. The first bracket top plate, the first bracket bottom plate and the first bracket side plate are combined to form a receiving cavity. The isolating switch is fixed to one side of the first bracket side plate and is located outside the receiving cavity. The DC fuse is fixed to the other side of the first bracket side plate and is located inside the receiving cavity.

5. The energy storage converter according to claim 3, characterized in that: It also includes a second bracket, which is arranged close to the second shell side plate, and the AC circuit breaker and the AC fuse are both fixed to the second bracket.

6. The energy storage converter according to claim 5, characterized in that: The second bracket includes a second bracket bottom plate and a second bracket side plate bent and connected to the second bracket bottom plate. The AC circuit breaker is fixed to the second bracket side plate, and the AC fuse is fixed to the second bracket bottom plate.

7. The energy storage converter according to claim 3, characterized in that: The shell also includes a third shell side plate connected between the first shell side plate and the second shell side plate, and a first handle and a second handle are arranged on the third shell side plate at intervals, and the first handle and the second handle are both exposed outside the third shell side plate, the first handle is connected to the isolating switch and is used to control the isolating switch, and the second handle is connected to the AC circuit breaker and is used to control the AC circuit breaker.

8. The energy storage converter according to any one of claims 2 to 7, characterized in that: A battery manager is also provided in the shell. The battery manager is provided between the isolating switch and the AC circuit breaker. The battery manager is connected to the DC side of the conversion control module.

9. The energy storage converter according to claim 8, characterized in that: The height of the shell is set to 100 mm to 300 mm, and / or the length or width of the shell is set to 700 mm to 900 mm.

10. An energy storage container, characterized in that: The energy storage container comprises an energy storage inverter and a plurality of battery clusters, wherein the energy storage inverter comprises the energy storage inverter according to any one of claims 1 to 9, and the battery cluster is electrically connected to the energy storage inverter.

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