Modularized energy storage converter

Abstract

The utility model provides a modularized energy storage converter which comprises a sealing box, a sealing door arranged on one side of the sealing box and a heat dissipation cover arranged on the other side of the sealing box, and the sealing door is detachably installed on the sealing box; an air inlet is formed in one end of the heat dissipation cover, an air outlet is formed in the other end of the heat dissipation cover, an electric reactor is arranged at the position, corresponding to the air inlet, of the sealing box, one end of the electric reactor extends into the sealing box, the other end of the electric reactor extends into the heat dissipation cover, and a radiator is arranged at the position, corresponding to the air outlet, of the sealing box. A cooling fan is arranged at the end, facing the air inlet, of the radiator. A first circulating fan facing the air inlet is arranged at the position, corresponding to the heat exchanger, in the sealing box, a second circulating fan facing the air outlet is arranged at the position, corresponding to the electric reactor, in the sealing box, and the first circulating fan and the second circulating fan are arranged in a staggered mode. The modularized energy storage converter has the advantages of being simple in structure, easy to install and use and good in heat dissipation performance.

Description

Technical Field

[0001] The utility model belongs to the technical field of energy storage converters, and particularly relates to a modular energy storage converter. Background Art

[0002] At present, there are few types of energy storage converters with a compact structure in the energy storage market. They are not suitable for household energy storage or other places with a small space, such as a wind turbine nacelle. Moreover, the compact structure will also affect the air flow in the energy storage transducer cabinet, thereby affecting the heat exchange efficiency of the heat exchanger, resulting in a decline in the heat conduction effect of the heat exchanger on the heat in the cabinet, affecting the overall heat dissipation effect of the cabinet, and being unfavorable to the stable operation of sensitive components in the cabinet. Therefore, a modular energy storage converter is needed, which can save space, work at a higher power, and have good heat dissipation at the same time. Content of the Utility Model

[0003] In view of this, the purpose of the utility model is to propose a modular energy storage converter to solve the problem of poor heat dissipation of the existing energy storage converter with a compact structure.

[0004] To achieve the above purpose, the technical solution of the utility model is realized as follows:

[0005] A modular energy storage converter includes a sealed box, a sealed door provided on one side of the sealed box, and a heat dissipation cover provided on the other side of the sealed box. The sealed door is detachably installed on the sealed box;

[0006] One end of the heat dissipation cover is provided with an air inlet, and the other end is provided with an air outlet. A reactor is provided on the sealed box at a position corresponding to the air inlet. One end of the reactor extends into the sealed box, and the other end extends into the heat dissipation cover. A radiator is provided on the sealed box at a position corresponding to the air outlet. A heat dissipation fan is provided at one end of the radiator facing the air inlet;

[0007] A first circulation fan facing the air inlet is provided in the sealed box at a position corresponding to the heat exchanger, and a second circulation fan facing the air outlet is provided in the sealed box at a position corresponding to the reactor. The first circulation fan and the second circulation fan are arranged in a staggered manner; a first component group is provided on one side of the sealed box facing the heat dissipation cover, and a second component group is provided on the other side. There is a first ventilation gap for air flow between the first component group and the second component group, and a second ventilation gap for air flow between the second component group and the sealed door.

[0008] Further, the first component group includes a main power board, an AC capacitor board, a disconnector, a contactor, and a large fuse. The main power board and the AC capacitor board are arranged corresponding to the radiator, and the disconnector, the contactor, and the large fuse are arranged corresponding to the air inlet of the heat dissipation cover.

[0009] Further, the second component group includes a control board, a filter board, a DC capacitor board, and a lightning protection board. The control board, the filter board, and the DC capacitor board are arranged corresponding to the radiator, and the lightning protection board is arranged corresponding to the air inlet of the heat dissipation cover.

[0010] Further, filter plates are provided at positions corresponding to the air inlet and the air outlet on the heat dissipation cover.

[0011] Further, a plurality of heat dissipation fans are arranged along the length direction of the radiator.

[0012] Further, one side of the heat dissipation cover is arranged on the sealed box, and the other side is provided with a detachable cover plate. There is an accommodation gap for accommodating the radiator and the reactor between the cover plate and the sealed box, and both the air inlet and the air outlet are communicated with the accommodation gap.

[0013] Further, the sealed box and the heat dissipation cover are connected by a connecting member.

[0014] Further, the connecting member is an L-shaped structural member.

[0015] Further, a handle member is provided on the sealed box, one end of the handle member is arranged on the sealed box, and the other end is arranged on the heat dissipation cover.

[0016] Compared with the prior art, the modular energy storage converter of the present invention has the following advantages:

[0017] The present invention provides a modular energy storage converter, which has the advantages of simple structure, easy installation and use, and good heat dissipation performance. By using the radiator and the heat dissipation fan in the heat dissipation cover for external circulation, and using the first circulation fan and the second circulation fan in the sealed box for internal circulation, and cooperating with a reasonably designed ventilation duct structure, while ensuring the protection performance of the components, the sensitive components have good heat dissipation effect in the internal circulation of the sealed box, and the reactor with a low protection level also has good heat dissipation in the external circulation, solving the problem of poor heat dissipation effect of the existing compact energy storage converter, meeting the use requirements of different working conditions, and improving the applicability and reliability of this energy storage converter. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0019] Figure 1 is a schematic structural diagram of a modular energy storage converter according to an embodiment of the present invention;

[0020] Figure 2Schematic diagram of the structure of a modular energy storage converter after removing the cover plate of the heat dissipation cover according to an embodiment of the present invention;

[0021] Figure 3 Schematic diagram of the structure of a modular energy storage converter after removing the sealing door of the sealing box according to an embodiment of the present invention;

[0022] Figure 4 Schematic diagram of the structure at the first component group in the sealing box of a modular energy storage converter according to an embodiment of the present invention.

[0023] Description of reference numerals:

[0024] 1. Sealing door; 2. Handle part; 3. Sealing box; 4. Isolating switch; 5. Connecting piece; 6. Air outlet; 7. Air inlet; 8. Reactor; 9. Cooling fan; 10. Radiator; 11. Heat dissipation cover; 12. First circulation fan; 13. Second circulation fan; 14. Filter board; 15. Control board; 16. DC capacitor board; 17. Lightning protection board; 18. Main power board; 19. AC capacitor board; 20. Large fuse; 21. Contactor. Detailed implementation manners

[0025] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0026] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention 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 thus should not be construed as a limitation to the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "plurality" is two or more.

[0027] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" 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 an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0028] The present utility model will be described in detail below with reference to the drawings and in conjunction with embodiments.

[0029] A modular energy storage converter, as Figures 1 to 4 shown, includes a sealed box 3, a sealed door 1 provided on one side of the sealed box 3, and a heat dissipation cover 11 provided on the other side of the sealed box 3. The sealed door 1 is detachably installed on the sealed box 3. Among them, both the sealed box 3 and the sealed door 1 can adopt existing devices. The sealed door 1 can be installed and fixed on the sealed box 3 by screws. A sealing structure such as a sealing member can also be provided between the sealed door 1 and the sealed box 3 according to needs. Those skilled in the art can choose other ways to install the sealed door 1 according to actual needs to achieve the detachable installation of the sealed door 1 on the sealed box 3, which will not be elaborated here.

[0030] One end of the above heat dissipation cover 11 is provided with an air inlet 7, and the other end is provided with an air outlet 6. A reactor 8 is provided on the sealed box 3 at a position corresponding to the air inlet 7. One end of the reactor 8 extends into the sealed box 3, and the other end extends into the heat dissipation cover 11. A radiator 10 is provided on the sealed box 3 at a position corresponding to the air outlet 6. A heat dissipation fan 9 is provided at one end of the radiator 10 facing the air inlet 7. Exemplarily, both the reactor 8 and the radiator 10 can adopt existing devices and are installed and fixed on the sealed box 3 by screws. The sealed box 3 is provided with installation holes for installing the reactor 8 and the radiator 10. Sealing structures such as sealing rings can be provided between the reactor 8 and the sealed box 3, and between the radiator 10 and the sealed box 3 to ensure the sealing of the sealed box 3. Those skilled in the art can also choose other ways to install the reactor 8 and the radiator 10 according to actual needs, which will not be elaborated here either.

[0031] In the actual application process, a radiator 10 is provided on the sealed box 3, and a cooling fan 9 is provided on the radiator 10. The radiator 10 can achieve a good heat dissipation effect on the inside of the sealed box 3, and the cooling fan 9 can blow the cold air entering the heat dissipation cover 11 through the air inlet 7 over the radiator 10, thereby reducing the temperature of the radiator 10 itself and improving the cooling effect of the radiator 10 on the components inside the sealed box 3. At the same time, by extending one end of the reactor 8 into the heat dissipation cover 11, direct heat dissipation of the reactor 8 can also be achieved, which is beneficial to reducing the temperature of the reactor 8 during operation, thereby preventing the heat generated by the reactor 8 from affecting the components inside the sealed box 3.

[0032] A first circulation fan 12 facing the air inlet 7 is provided at the position corresponding to the heat exchanger inside the sealed box 3, and a second circulation fan 13 facing the air outlet 6 is provided at the position corresponding to the reactor 8 inside the sealed box 3. The first circulation fan 12 and the second circulation fan 13 are arranged in a staggered manner; a first component group is provided on one side of the sealed box 3 facing the heat dissipation cover 11, and a second component group is provided on the other side. There is a first ventilation gap for air flow between the first component group and the second component group, and a second ventilation gap for air flow exists between the second component group and the sealing door 1.

[0033] Exemplarily, both the first circulation fan 12 and the second circulation fan 13 can be installed and fixed on the inner wall of the sealed box 3 by screws, and a mounting bracket for installing the first circulation fan 12 or the second circulation fan 13 can also be installed and fixed on the sealed box 3. Those skilled in the art can also choose other ways to install the first circulation fan 12 and the second circulation fan 13 according to actual needs, so that they are arranged in a staggered manner and can blow the air inside the sealed box 3 to form a circular internal circulation air flow. Here, it will not be elaborated further.

[0034] In the actual application process, by providing the first circulation fan 12 and the second circulation fan 13 inside the sealed box 3, an internal circulation air flow with circulating flow can be generated inside the sealed box 3. The internal circulation air flow can contact the sealed box 3 body at the radiator 10 to achieve cooling, and the circulating air flow can also play a good cooling role on both the first component group and the second component group inside the sealed box 3.

[0035] Specifically, by providing a first ventilation gap between the first component group and the second component group and a second ventilation gap between the second component and the sealing door 1, not only the distance between each component group inside the sealed box 3 is increased, which is beneficial to the heat dissipation of each component, but also a space for the internal circulation air flow to contact each component group is provided, enabling the internal circulation air flow to better cool each component group, which is beneficial to improving the overall heat dissipation effect of this energy storage transmitter.

[0036] Optionally, the first component group includes a main power board 18, an AC capacitor board 19, a disconnector switch 4, a contactor 21, and a large fuse 20. The main power board 18 and the AC capacitor board 19 are arranged corresponding to the radiator 10, and the disconnector switch 4, the contactor 21, and the large fuse 20 are arranged corresponding to the air inlet 7 of the heat dissipation cover 11. Exemplarily, the main power board 18, the AC capacitor board 19, the disconnector switch 4, the contactor 21, and the large fuse 20 can all adopt existing devices and are installed and fixed on the sealed box 3 by screws. Those skilled in the art can also select other installation methods according to actual needs to achieve the stable installation of the above components in the sealed box 3, which will not be elaborated here.

[0037] In the actual application process, by arranging the main power board 18 and the AC capacitor board 19 corresponding to the radiator 10, and making the main power board 18 and the AC capacitor board 19 close to or in direct contact with the radiator 10, the radiator 10 can be used to directly dissipate heat from the main power board 18 and the AC capacitor board 19 with relatively large heat generation, which is beneficial to quickly reduce the temperature at the main power board 18 and the AC capacitor board 19. By arranging the disconnector switch 4, the contactor 21, and the large fuse 20 corresponding to the air inlet 7 of the heat dissipation cover 11, components with relatively small heat generation are kept away from the radiator 10, and the sealed box 3 with a lower temperature at the air inlet 7 is used for heat dissipation. While improving the structural compactness of the components in this energy storage converter, the mutual influence between components with different heat generation amounts is avoided, ensuring the overall heat dissipation performance of this energy storage converter.

[0038] Optionally, the second component group includes a control board 15, a filter board 14, a DC capacitor board 16, and a lightning protection board 17. The control board 15, the filter board 14, and the DC capacitor board 16 are arranged corresponding to the radiator 10, and the lightning protection board 17 is arranged corresponding to the air inlet 7 of the heat dissipation cover 11. Exemplarily, the control board 15, the filter board 14, the DC capacitor board 16, and the lightning protection board 17 can all adopt existing devices and are installed and fixed on the sealed box 3 by screws. Those skilled in the art can also select other installation methods according to actual needs to achieve the stable installation of the above components in the sealed box 3, which will not be elaborated here.

[0039] In the actual application process, by arranging the control board 15, the filter board 14, and the DC capacitor board 16 close to the radiator 10, the radiator 10 can be used to directly dissipate heat from the main power board 18 and the AC capacitor board 19 with relatively large heat generation, which is beneficial to quickly reduce the temperature at the control board 15, the filter board 14, and the DC capacitor board 16. By arranging the lightning protection board 17 corresponding to the air inlet 7 of the heat dissipation cover 11, components with relatively small heat generation are kept away from the radiator 10, and the sealed box 3 with a relatively low temperature at the air inlet 7 is used for heat dissipation, which also improves the structural compactness of the components in this energy storage converter, avoids the mutual influence between components with different heat generations, and ensures the overall heat dissipation performance of this energy storage converter.

[0040] In addition, the power supply connection methods of the devices in the first component group, the devices in the second component group, the cooling fan, the first circulation fan, the second circulation fan, and the reactor are all prior arts. The main improvement point of the present utility model lies in the optimized design of the layout positions of the above components, and does not involve the improvement of the above components and their connection methods, so they will not be elaborated here.

[0041] Optionally, filter plates are provided at the positions corresponding to the air inlet 7 and the air outlet 6 on the heat dissipation cover 11. Exemplarily, the filter plates can be installed and fixed on the heat dissipation cover 11 by screws. By setting the filter plates, a good filtering effect on the air can be achieved, reducing the possibility of foreign objects entering the heat dissipation cover 11, ensuring that the heat exchanger, the reactor 8, and the cooling fan 9 in the heat dissipation cover 11 can work continuously and stably, and improving the reliability and safety of this energy storage converter during actual use.

[0042] Optionally, multiple cooling fans 9 are arranged along the length direction of the radiator 10. Exemplarily, two, three, or more cooling fans 9 can be provided, and each cooling fan 9 can be installed and fixed on the radiator 10 by screws. By setting multiple cooling fans 9, it is beneficial to improve the cooling effect of the radiator 10 on the sealed box 3.

[0043] Optionally, one side of the heat dissipation cover 11 is arranged on the sealed box 3, and the other side is provided with a detachable cover plate. There is an accommodation gap for accommodating the radiator 10 and the reactor 8 between the cover plate and the sealed box 3, and both the air inlet 7 and the air outlet 6 are communicated with the accommodation gap. Exemplarily, the heat dissipation cover 11 can be installed and fixed on the sealed box 3 by screws, and the cover plate can also be installed and fixed on the heat dissipation cover 11 by screws. By adopting a detachable method to install the cover plate, it is convenient for the operator to clean and maintain the cooling fan 9, the heat exchanger, the reactor 8, etc. in the heat dissipation cover 11 according to needs, reducing the use and maintenance difficulty of this energy storage converter.

[0044] Optionally, the sealed box 3 is connected to the heat dissipation cover 11 through a connecting member 5. Exemplarily, the connecting member 5 is an L-shaped structural member. One end of the connecting member 5 is fixedly installed on the sealed box 3 by screws, and the other end is fixedly installed on the heat dissipation cover 11 by screws. Compared with the connecting members 5 of other structures, the connecting member 5 with an L-shaped structure has higher structural strength, which is beneficial to improving the structural strength of the connection between the heat dissipation cover 11 and the sealed box 3 body.

[0045] Optionally, a handle member 2 is provided on the sealed box 3. One end of the handle member 2 is arranged on the sealed box 3, and the other end is arranged on the heat dissipation cover 11. Exemplarily, one end of the handle member 2 can be fixedly installed on the sealed box 3 by screws, and the other end can be fixedly installed on the heat dissipation cover 11 by screws. By providing the handle member 2, it is not only beneficial to further improve the connection stability between the heat dissipation cover 11 and the sealed box 3, but also can reduce the handling difficulty of this energy storage converter.

[0046] The present utility model provides a modular energy storage converter, which has the advantages of simple structure, easy installation and use, and good heat dissipation performance. By utilizing the radiator and the cooling fan in the heat dissipation cover for external circulation, and utilizing the first circulation fan and the second circulation fan in the sealed box for internal circulation, and cooperating with a reasonably designed ventilation duct structure, while ensuring the protection performance of the components, the sensitive components have good heat dissipation effect in the internal circulation of the sealed box, and the reactor with a low protection level also has good heat dissipation in the external circulation, solving the problem of poor heat dissipation effect of the existing compact energy storage converter, meeting the use requirements of different working conditions, and improving the applicability and reliability of this energy storage converter.

[0047] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A modular energy storage converter, characterized in that: It comprises a sealed box (3), a sealed door (1) arranged on one side of the sealed box (3), and a heat dissipation cover (11) arranged on the other side of the sealed box (3), wherein the sealed door (1) is detachably mounted on the sealed box (3); An air inlet (7) is provided at one end of the heat dissipation cover (11), and an air outlet (6) is provided at the other end; a reactor (8) is provided at a position corresponding to the air inlet (7) on the sealed box (3); one end of the reactor (8) extends into the sealed box (3), and the other end extends into the heat dissipation cover (11); a radiator (10) is provided at a position corresponding to the air outlet (6) on the sealed box (3); and a cooling fan (9) is provided at one end of the radiator (10) facing the air inlet (7); A first circulation fan (12) facing the air inlet (7) is provided at a position corresponding to the heat exchanger in the sealed box (3), and a second circulation fan (13) facing the air outlet (6) is provided at a position corresponding to the reactor (8) in the sealed box (3), wherein the first circulation fan (12) and the second circulation fan (13) are arranged in a staggered manner; a first component group is provided on one side of the sealed box (3) facing the heat dissipation cover (11), and a second component group is provided on the other side; a first ventilation gap for airflow is provided between the first component group and the second component group, and a second ventilation gap for airflow is provided between the second component group and the sealed door (1).

2. A modular energy storage converter according to claim 1, characterized in that: The first component group comprises a main power board (18), an AC capacitor board (19), an isolating switch (4), a contactor (21), and a large fuse (20); the main power board (18) and the AC capacitor board (19) are arranged corresponding to the radiator (10); and the isolating switch (4), the contactor (21), and the large fuse (20) are arranged corresponding to the air inlet (7) of the heat dissipation cover (11).

3. A modular energy storage converter according to claim 1, characterized in that: The second component group comprises a control board (15), a filter board (14), a DC capacitor board (16), and a lightning protection board (17); the control board (15), the filter board (14), and the DC capacitor board (16) are arranged corresponding to the radiator (10), and the lightning protection board (17) is arranged corresponding to the air inlet (7) of the heat dissipation cover (11).

4. A modular energy storage converter according to claim 1, characterized in that: Filter screens are provided at positions on the heat dissipation cover (11) corresponding to the air inlet (7) and the air outlet (6).

5. A modular energy storage converter according to claim 1, characterized in that: A plurality of the cooling fans (9) are arranged along the length direction of the radiator (10).

6. A modular energy storage converter according to claim 1, characterized in that: One side of the heat dissipation cover (11) is arranged on the sealed box (3), and the other side is provided with a detachable cover plate, and there is an accommodation gap between the cover plate and the sealed box (3) for accommodating the radiator (10) and the reactor (8), and the air inlet (7) and the air outlet (6) are both connected to the accommodation gap.

7. A modular energy storage converter according to claim 1, characterized in that: The sealing box (3) and the heat dissipation cover (11) are connected via a connecting piece (5).

8. A modular energy storage converter according to claim 7, characterized in that: The connecting member (5) is an L-shaped structural member.

9. A modular energy storage converter according to claim 1, characterized in that: The sealing box (3) is provided with a handle piece (2), one end of the handle piece (2) is arranged on the sealing box (3), and the other end is arranged on the heat dissipation cover (11).

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