Energy storage converter and energy storage system

Abstract

The utility model provides an energy storage converter and an energy storage system. The energy storage converter comprises a housing, an external terminal, and an installation assembly, a power module, a control module, a filtering module and a heat dissipation assembly which are disposed in the housing. The mounting assembly is fixed on a side plate and a back plate of the shell; the heat dissipation assembly comprises a liquid cooling plate and a fan module. The liquid cooling plate is fixed on a bottom plate of the shell, and the fan module is fixed on a back plate of the shell; the power module is fixed on the liquid cooling plate and the bottom plate, the control module is fixed on the mounting assembly, and the filtering module is fixed on the bottom plate; and the external terminal is positioned outside the shell and is fixed on a panel of the shell in a penetrating manner. According to the energy storage converter and the energy storage system provided by the utility model, through a compact structural layout, the utilization rate of an internal space is improved, and the overall size is obviously reduced.

Description

Technical Field

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

[0002] As the global clean energy industry enters a period of rapid development, the energy storage industry has become a key driver of economic recovery. Electrochemical energy storage systems primarily consist of batteries, power converter systems (PCSs), energy management systems, battery management systems, and other electrical equipment. As a core component of electrochemical energy storage systems, PCSs directly impact their performance, cost, and reliability. Currently, the market for PCSs is underdeveloped and remains in the early stages of development, focusing on improving quality, reducing costs, and achieving scale.

[0003] Existing energy storage converters are limited by the layout of main components, are usually large in size and have low internal space utilization, and are in urgent need of improvement. Utility Model Content

[0004] The purpose of the utility model is to provide an energy storage converter and an energy storage system, so as to at least solve the technical problems of the existing energy storage converters being large in size and having low internal space utilization.

[0005] The utility model provides an energy storage converter, comprising: a shell, external terminals, and a mounting assembly, a power module, a control module, a filter module and a heat dissipation assembly located in the shell; the mounting assembly is fixed to the side panels and the back panel of the shell; the heat dissipation assembly comprises: a liquid cooling plate and a fan module; the liquid cooling plate is fixed to the bottom panel of the shell, and the fan module is fixed to the back panel of the shell; the power module is fixed to the liquid cooling plate and the bottom panel, the control module is fixed to the mounting assembly, and the filter module is fixed to the bottom panel; the external terminals are located outside the shell and are fixed through the panel of the shell.

[0006] Preferably, the mounting assembly includes: a first mounting bar and a second mounting bar; one end of the first mounting bar is connected to the back panel, and the other end of the first mounting bar is connected to the second mounting bar; both ends of the second mounting bar are vertically connected to the two side panels of the shell; the first mounting bar and the second mounting bar divide the interior of the shell into a first space, a second space and a third space along the top view direction.

[0007] Preferably, the power module includes: an inductor module, a power switch module, an auxiliary power supply module, and a power board; the inductor module, the power switch module, and the auxiliary power supply module are all located in the first space and fixed on the liquid cooling plate; the power board is fixed on the base plate.

[0008] Preferably, the filtering module is located in the third space.

[0009] Preferably, the control module includes: a control board, a pre-charge module, and a communication module; the control board and the pre-charge module are both located above the power board and are fixed in the second space through the first mounting bar and the side panel of the shell; the communication module is located above the filter module and is fixed in the third space through the second mounting bar.

[0010] Preferably, the fan module is located in the second space and is arranged between the back plate and the power board.

[0011] Preferably, the inlet and outlet of the liquid cooling plate are both fixed through the panel.

[0012] Preferably, the internal spaces of the shell are arranged in descending order of volume: a second space, a first space, and a third space.

[0013] Preferably, the external terminals include: a plurality of communication terminals and a plurality of power terminals; the communication terminals are connected to the communication module, and the power terminals are connected to the filter module.

[0014] The utility model also provides an energy storage system, comprising the energy storage converter as described above.

[0015] The energy storage converter and energy storage system provided by the utility model utilize mounting components and heat dissipation components to stack the power module, control module, and filter module up and down inside the shell. Through the compact structural layout, the internal space utilization rate is improved and the volume of the energy storage converter is significantly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 Schematic diagram of an energy storage converter according to an embodiment of the present invention.

[0018] Figure 2 This is a schematic diagram of the interior of the housing of the energy storage converter according to an embodiment of the present utility model.

[0019] Figure 3 This is a schematic diagram of the internal structure of the energy storage converter according to an embodiment of the present utility model.

[0020] Figure 4This is a schematic diagram of the explosion structure of the energy storage converter according to an embodiment of the present utility model.

[0021] Figure numerals: shell 1, cover plate 10, base plate 11, panel 12, back plate 13, first side plate 14, second side plate 15, first space 16, second space 17, third space 18, external terminal 2, communication terminal 20, power terminal 21, mounting assembly 3, first mounting bar 30, second mounting bar 31, power module 4, inductor module 40, power switch module 41, auxiliary power supply module 42, power board 43, control module 5, control board 50, pre-charge module 51, communication module 52, filter module 6, heat dissipation assembly 7, liquid cooling plate 70, fan module 71, inlet 72, outlet 73. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned objects, features and advantages of the present invention more clearly understood, the following detailed description of the specific embodiments of the present invention is given in conjunction with the accompanying drawings. It should be understood that many specific details are set forth in the following description to facilitate a full understanding of the present invention, but the present invention can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0023] like Figures 1 to 4 As shown, this embodiment provides an energy storage converter, including: a housing 1, an external terminal 2, a mounting assembly 3, a power module 4, a control module 5, a filter module 6 and a heat dissipation assembly 7.

[0024] Preferably, the housing 1 is a hollow rectangular structure, and the internal accommodation space is used to place the mounting assembly 3, the power module 4, the control module 5, the filter module 6 and the heat dissipation assembly 7. Figure 1 and Figure 2 As shown, the housing 1 includes: a cover plate 10, a bottom plate 11, a front plate 12, a back plate 13, and two side plates (a first side plate 14 and a second side plate 15). Here, the cover plate 10 and the bottom plate 11 are arranged opposite to each other, the front plate 12 and the back plate 13 are arranged opposite to each other, and the two side plates are arranged opposite to each other.

[0025] As an example, the shell 1 is made of cold-rolled steel.

[0026] In order to enhance the strength and stability of the shell, reinforcing ribs may be provided on the bottom plate 11 . The number, shape and installation position of the reinforcing ribs may be set according to actual needs, and this embodiment does not impose any specific limitation on this.

[0027] The mounting assembly 3 is fixed on the two side panels and the back panel 13 of the housing 1. Preferably, the mounting assembly 3 can be mounted on the inner walls of the two side panels and the back panel 13.

[0028] Furthermore, the installation assembly 3 is located at the upper part of the accommodating space.

[0029] Preferably, the control module 5 is electrically connected to the power module 4 , the filter module 6 and the heat dissipation assembly 7 ; and the power module 4 is electrically connected to the filter module 6 .

[0030] like Figure 2 As shown, the mounting assembly 3 includes a first mounting bar 30 and a second mounting bar 31 .

[0031] One end of the first mounting bar 30 is connected to the back panel 13 , and the other end of the first mounting bar 30 is connected to the second mounting bar 31 ; both ends of the second mounting bar 31 are perpendicularly connected to the two side panels of the housing 1 .

[0032] As an example, the mounting assembly 3 is parallel to the bottom plate 11. Specifically, one end of the first mounting bar 30 is perpendicularly connected to the back plate 13, the other end of the first mounting bar 30 is perpendicularly connected to the second mounting bar 31, one end of the second mounting bar 31 is perpendicularly connected to the first side plate 14, and the other end of the second mounting bar 31 is perpendicularly connected to the second side plate 15.

[0033] Combine Figure 4 The first mounting bar 30 and the second mounting bar 31 divide the interior of the housing 1 into a first space 16, a second space 17 and a third space 18 along a top view direction.

[0034] Specifically, the top-view direction is a direction viewed vertically from the cover plate 10 toward the bottom plate 11 .

[0035] Here, the connection position of the first mounting bar 30 and the second mounting bar 31 can be adjusted according to actual needs, thereby adjusting the size of the first space 16, the second space 17, and the third space 18. As an example, the internal spaces of the housing 1 are, in descending order of volume, the second space 17, the first space 16, and the third space 18. It should be understood that the above example is merely illustrative, and the sizes of the three spaces can be adjusted according to actual needs, and the present invention is not limited thereto.

[0036] like Figure 3 and Figure 4 As shown, the heat dissipation assembly 7 includes a liquid cooling plate 70 and a fan module 71. The energy storage converter of this embodiment adopts liquid cooling combined with air cooling to effectively improve the heat dissipation efficiency.

[0037] The liquid cooling plate 70 is fixed on the bottom plate 11 , and the inlet 72 and the outlet 73 of the liquid cooling plate 70 are both fixed through the panel 12 .

[0038] As an example, the liquid cooling plate 70 may be a water cooling plate, and the material of the liquid cooling plate 70 may be copper, aluminum alloy, etc.

[0039] The power module 4 is fixed on the liquid cooling plate 70 and the bottom plate 11 . The power module 4 is used to achieve bidirectional conversion between direct current and alternating current.

[0040] The power module 4 includes: an inductor module 40 , a power switch module 41 , an auxiliary power supply module 42 , and a power board 43 .

[0041] The inductor module 40, power switch module 41, and auxiliary power module 42 are all located within the first space 16 and are secured to the liquid cooling plate 70. The liquid cooling plate 70 can directly cool the inductor module 40, power switch module 41, and auxiliary power module 42. Furthermore, the fan module 71 can accelerate air flow within the housing 1, effectively accelerating heat dissipation.

[0042] The power board 43 is fixed on the base plate 11 .

[0043] The filter module 6 is fixed on the bottom plate 11 , and the filter module 6 is located in the third space 18 .

[0044] The filtering module 6 can improve the safety of the system and can be disconnected from the battery when a problem occurs in the energy storage converter to prevent the fault from spreading. It can also improve the quality and stability of the signal and protect the energy storage converter from damage caused by electromagnetic interference, reduce the failure rate, and make the equipment longer-lasting and more stable to use.

[0045] The control module 5 is fixed on the mounting assembly 3. Specifically, the control module 5 controls the operation of the power module 4 through the generated control instructions.

[0046] The control module 5 includes: a control board 50 , a pre-charging module 51 , and a communication module 52 .

[0047] The control board 50 and the pre-charge module 51 are both located above the power board 43 and are fixed in the second space 17 through the first mounting bar 30 and the first side panel 14; the communication module 52 is located above the filter module 6 and is fixed in the third space 18 through the second mounting bar 31.

[0048] The fan module 71 is fixed on the back plate 13. Specifically, the fan module 71 is located in the second space 17 and is disposed between the back plate 13 and the power board 43.

[0049] The control board 50 is electrically connected to the inductor module 40, the power switch module 41, the auxiliary power supply module 42, the power board 43, the pre-charge module 51, the communication module 52, the filter module 6, and the fan module 71. For example, the control board 50 is connected and controlled by a wiring harness with the inductor module 40, the power switch module 41, the auxiliary power supply module 42, the power board 43, the pre-charge module 51, the communication module 52, the filter module 6, and the fan module 71.

[0050] The inductor module 40 is electrically connected to the power switch module 41 and the power board 43. As an example, the power switch module 41 is connected to the inductor module 40 via a copper busbar; and the inductor module 40 is connected to the power board 43 via a copper busbar.

[0051] The filter module 6 is electrically connected to the power switch module 41, the power board 43, and the pre-charge module 51. As an example, the filter module 6 is connected to the power switch module 41 via a copper busbar, the power board 43 is connected to the filter module 6 via a copper busbar, and the filter module 6 is connected to the pre-charge module 51 via a wiring harness.

[0052] The liquid cooling plate 70, the power board 43, and the filter module 6 are all fixed to the bottom plate 11 by studs, forming the bottom structural layout within the housing 1; the inductor module 40, the power switch module 41, and the auxiliary power supply module 42 are all fixed to the liquid cooling plate 70, the control board 50 and the pre-charge module 51 are both located above the power board 43, and the communication module 52 is both located above the filter module 6, forming the upper structural layout within the housing 1. This embodiment effectively improves the internal space utilization through the upper and lower layer structural layout, thereby reducing the overall volume.

[0053] It can be understood that the main components in this embodiment are all required to reserve safety gaps in accordance with the requirements of relevant electrical specifications during installation, and this utility model will not go into details. In this embodiment, when the control board 50 and the pre-charge module 51 are fixed by the first mounting bar 30 and the first side panel 14, there is an installation gap between the control board 50 and the pre-charge module 51 and the power board 43; when the communication module 52 is fixed by the second mounting bar 31, there is also an installation gap between the control board 50 and the pre-charge module 51 and the filter module 6. These installation gaps can avoid stacking between the above modules and serve as heat dissipation channels for the fan module 71, which is conducive to air flow, thereby accelerating heat dissipation. Here, the fan module 71 discharges heat through the liquid cooling plate 70 in an internal circulation manner. It can be understood that the installation interval can be set according to actual needs, for example, the installation interval is above 7.1 mm.

[0054] The external terminal 2 is located outside the housing 1 and is fixed on the panel 12 .

[0055] The external terminals 2 include: a plurality of communication terminals 20 and a plurality of power terminals 21 .

[0056] As an example and combined Figure 1 , the number of communication terminals 20 can be 4, and the number of power terminals 21 can be 6. It should be understood that the above examples are only exemplary, and the number of the communication terminals 20 and the power terminals 21 can be set according to actual needs, and the present invention is not limited thereto.

[0057] The communication terminal 20 is connected to the communication module 52, and the power terminal 21 is connected to the filter module 6. As an example, the communication terminal 20 is electrically connected to the communication module 52 through a wiring harness, and the power terminal 21 is electrically connected to the filter module 6 through a copper busbar.

[0058] This embodiment further provides an energy storage system, including the energy storage converter described above. It is understood that the energy storage system also includes: a power grid device, an energy storage battery, etc.

[0059] The energy storage converter and energy storage system provided in this embodiment utilize the mounting assembly 3 and the heat dissipation assembly 7 to stack the power module 4, the control module 5, and the filter module 6 up and down inside the housing. Through the compact structural layout, the internal space utilization is improved, thereby reducing the overall volume.

[0060] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the scope of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. An energy storage converter, characterized in that: include: A housing, external terminals, and mounting components, a power module, a control module, a filter module, and a heat dissipation component located within the housing; The mounting assembly is fixed to the side panels and the back panel of the housing; The heat dissipation assembly includes: a liquid cooling plate and a fan module; the liquid cooling plate is fixed on the bottom plate of the housing, and the fan module is fixed on the back plate; The power module is fixed to the liquid cooling plate and the base plate, the control module is fixed to the mounting assembly, and the filter module is fixed to the base plate; The external terminal is located outside the shell and is fixed on the panel of the shell.

2. The energy storage converter according to claim 1, characterized in that: The mounting assembly includes: a first mounting bar and a second mounting bar; One end of the first mounting bar is connected to the back panel, and the other end of the first mounting bar is connected to the second mounting bar; both ends of the second mounting bar are vertically connected to the two side panels of the housing; The first mounting bar and the second mounting bar divide the interior of the housing into a first space, a second space, and a third space along a plan view direction.

3. The energy storage converter according to claim 2, characterized in that: The power module includes: an inductor module, a power switch module, an auxiliary power supply module, and a power board; The inductor module, power switch module and auxiliary power supply module are all located in the first space and fixed on the liquid cooling plate; The power board is fixed on the bottom board.

4. The energy storage converter according to claim 3, characterized in that: The filtering module is located in the third space.

5. The energy storage converter according to claim 3 or 4, characterized in that: The control module includes: a control board, a pre-charge module, and a communication module; The control board and the pre-charge module are both located above the power board and fixed in the second space by the first mounting bar and the side panels of the housing; The communication module is located above the filter module and is fixed in the third space through the second mounting bar.

6. The energy storage converter according to claim 3, characterized in that: The fan module is located in the second space and is arranged between the back plate and the power board.

7. The energy storage converter according to claim 1, characterized in that: The inlet and outlet of the liquid cooling plate are both fixed on the panel.

8. The energy storage converter according to claim 2, characterized in that: The internal spaces of the shell are arranged in descending order of volume: a second space, a first space, and a third space.

9. The energy storage converter according to claim 5, characterized in that: The external terminals include: a plurality of communication terminals and a plurality of power terminals; The communication terminal is connected to the communication module, and the power terminal is connected to the filter module.

10. An energy storage system, characterized in that: include: The energy storage converter according to any one of claims 1 to 9.

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