An external energy storage converter structure of a reactor

Abstract

The utility model discloses an energy storage converter structure of external reactance device, including cavity cover, cavity, bottom plate subassembly, back vent plate, water cooling plate, front wiring board subassembly and reactance device, can effectively reduce device installation area ring temperature, improve internal device reliability to prolong converter life, and the structure has good sealing performance, ensures that the device failure caused by dust or water in the device installation area, improves the reliability of complete machine, and the nut fixed plate metal is installed on the front wiring board subassembly through screw, can unilateral fixed waterproof joint to improve installation efficiency greatly.

Description

Technical Field

[0001] This utility model relates to the technical field of energy storage converters, and in particular to the technical field of an energy storage converter structure with an external reactor. Background Technology

[0002] Compared with air-cooled energy storage converters, liquid-cooled energy storage converters have unique advantages in terms of heat dissipation efficiency, power density, environmental adaptability, and long-term economic efficiency. Therefore, liquid-cooled energy storage converters have received increasing attention. In liquid-cooled converters, the reactor is a key power device with large heat generation, which needs to be mounted on a water-cooled plate for heat dissipation. Usually, the reactor is installed inside the converter cavity along with other components, such as in the patent "Energy Storage Converter and Energy Storage System" (patent number 202510645504.7). Because the reactor generates a lot of heat, after some heat is carried away by the water-cooled plate on the reactor base plate, some heat will still radiate into the cavity, making the ambient temperature inside the cavity very high. This leads to a decrease in the reliability of other components inside the cavity due to operation at high temperatures. If the temperature resistance of the components is improved by selection, the overall cost will increase. Therefore, how to provide a liquid-cooled energy storage converter structure that can effectively reduce the ambient temperature of the cavity is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0003] The purpose of this invention is to solve the problems in the prior art by proposing an external reactor energy storage converter structure, which can effectively reduce the ambient temperature in the device installation area, improve the reliability of internal devices, have good sealing performance, and can fix waterproof joints on one side, thereby improving installation efficiency.

[0004] To achieve the above objectives, this utility model proposes an externally mounted energy storage converter structure, including a cavity cover, a cavity, a base plate assembly, a rear ventilation plate, a water-cooling plate, a front terminal block assembly, and a reactor. The top of the cavity is provided with a cover sealing foam. The cavity interior is divided into an internal component mounting area and an external reactor mounting area. The external reactor mounting area has ventilation holes on its side and a wire passage hole at the front. A wire passage sealing strip is adhered around the wire passage hole, and several sealing rivet nuts are arranged around the wire passage hole. The top of the reactor installation area is equipped with several waterproof connectors for reactor output lines and waterproof connectors for temperature control feedback lines. The bottom of the cavity has several IGBT mounting holes, surrounded by several cold plate connection holes. The bottom of the cavity also has several base plate connection holes. A rear ventilation plate is fixed to the side of the cavity with screws, and the rear ventilation plate has ventilation holes. A base plate assembly is installed at the bottom of the cavity. The base plate assembly includes a base plate, a first connecting plate, a second connecting plate, a third connecting plate, and riveting holes. A water-cooling plate is placed on the base plate. The water-cooled plate has a first connecting plate, a second connecting plate, and a third connecting plate fixedly mounted on its three sides by screws. These connecting plates are then fixedly mounted on a base plate by screws. The base plate assembly has several rivet holes around its bottom perimeter, which are connected to the base plate's connecting holes by screws. The water-cooled plate has an annular sealing silicone strip, the inner side of which has several cavity connecting threaded holes. These threaded holes are locked to the cold plate's connecting holes by screws. An electric... The reactor includes several power lines and a temperature control feedback line. The power lines pass through the reactor's outlet waterproof connector, and the temperature control feedback line passes through the temperature control feedback line waterproof connector. A front terminal block assembly is installed at the wire-passing hole position using screws and several sealing rivet nuts. The front terminal block assembly is provided with a reactor inlet waterproof connector. A sheet metal part is fixed by nuts installed on the front terminal block assembly at the position corresponding to the reactor inlet waterproof connector using screws. The reactor power lines pass through the reactor inlet waterproof connector, and a cavity cover plate is installed on the top of the cavity using screws.

[0005] Preferably, the side of the water-cooled plate is provided with an inlet pipe and a drain pipe that are interconnected, and the ends of the inlet pipe and the drain pipe are positioned and locked on the side edge of the base plate.

[0006] Preferably, the annular sealing silicone strip is arranged around the IGBT mounting hole, and the water-cooling plate and the bottom of the cavity are provided with positioning ring grooves corresponding to the position of the annular sealing silicone strip, and the annular sealing silicone strip is pressed into the positioning ring groove.

[0007] Preferably, the ventilation holes and the ventilation plate ventilation holes are connected, and the ventilation holes and the ventilation plate are located on different sides of the external reactor installation area.

[0008] Preferably, an IGBT module is disposed inside the cavity, and the IGBT module is mounted to the water cooling plate by screws through the IGBT mounting hole.

[0009] Preferably, the cover plate sealing foam is disposed between the cavity cover plate and the cavity.

[0010] Preferably, there are 6 closed rivet nuts, 3 reactor outlet waterproof connectors, 3 IGBT mounting holes, 20 cold plate connection holes around the 3 IGBT mounting holes, 9 base plate connection holes, 20 cavity connection threaded holes, and 9 rivet holes.

[0011] Preferably, both the internal component mounting area and the external reactor mounting area are sheet metal components.

[0012] The beneficial effects of this utility model are as follows: By combining the cavity cover plate, cavity, base plate assembly, rear ventilation plate, water-cooled plate, front wiring board assembly, and reactor, and through experimental optimization, this utility model can effectively reduce the ambient temperature in the device installation area, improve the reliability of internal components, and thus extend the life of the converter. This structure has good sealing performance, ensuring that dust or water in the device installation area does not cause device failure, thus improving the overall reliability of the machine. The front wiring board assembly is fixed to the sheet metal by screws and nuts, which can fix the waterproof connector on one side, thereby greatly improving the installation efficiency.

[0013] The features and advantages of this utility model will be described in detail through embodiments and accompanying drawings. Attached Figure Description

[0014] Figure 1 This invention relates to an isometric view of an externally mounted reactor energy storage converter structure. Figure 1 ;

[0015] Figure 2 This invention relates to an isometric view of an externally mounted reactor energy storage converter structure. Figure 2 ;

[0016] Figure 3 This is an exploded view of the structure of an externally mounted reactor energy storage converter according to this utility model.

[0017] Figure 4 The base plate assembly of the externally mounted reactor energy storage converter structure of this utility model, along with the water-cooling plate and reactor mounting isometric view, is shown below. Figure 1 ;

[0018] Figure 5 The base plate assembly of the externally mounted reactor energy storage converter structure of this utility model, along with the water-cooling plate and reactor mounting isometric view, is shown below. Figure 2 ;

[0019] Figure 6 The isometric view of the cavity of the externally mounted reactor energy storage converter structure of this utility model. Figure 1 ;

[0020] Figure 7 The isometric view of the cavity of the externally mounted reactor energy storage converter structure of this utility model. Figure 2 ;

[0021] Figure 8 This is an isometric view of the hidden cavity cover plate of an external reactor energy storage converter structure according to this utility model.

[0022] Figure 9 This is an isometric view of the front terminal block assembly of an externally mounted reactor energy storage converter structure according to this utility model.

[0023] In the diagram: 1. Cavity cover plate; 2. Cavity; 3. Base plate assembly; 4. Rear ventilation plate; 5. Water-cooled plate; 6. Front wiring board assembly; 7. Reactor; 21. Ventilation hole; 22. Cover plate sealing foam; 23. External reactor mounting area; 24. Cable hole; 25. Sealing rivet nut; 26. Reactor outlet waterproof connector; 27. Temperature control feedback line waterproof connector; 28. Base plate connection hole; 29. ​​Cable board sealing strip; 210. IGBT mounting hole; 211. Cold plate connection hole; 212. Internal component mounting area; 31. Base plate; 32. First connecting plate; 33. Second connecting plate; 34. Third connecting plate; 35. Rivet hole; 41. Ventilation hole of ventilation plate; 51. Annular sealing silicone strip; 52. Cavity connection threaded hole; 61. Reactor inlet waterproof connector; 62. Nut fixing sheet metal part. Detailed Implementation

[0024] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9This utility model discloses an externally mounted energy storage converter structure, comprising a cavity cover plate 1, a cavity 2, a base plate assembly 3, a rear ventilation plate 4, a water-cooling plate 5, a front terminal block assembly 6, and a reactor 7. The top of the cavity 2 is provided with a cover plate sealing foam 22. The cavity 2 internally separates an internal component mounting area 212 and an external reactor mounting area 23. The external reactor mounting area 23 has ventilation holes 21 on its sides and a cable passage hole 24 at its front. A cable passage sealing strip 29 is adhered around the cable passage hole 24, and several sealing rivet nuts 25 are arranged around the cable passage hole 24. The top of the external reactor mounting area 23 has several reactor outlet waterproof connectors 26 and a temperature control feedback line. A waterproof connector 27 is provided. The bottom of the cavity 2 has several IGBT mounting holes 210, and several cold plate connection holes 211 are provided around the IGBT mounting holes 210. Several base plate 31 connection holes 28 are provided around the bottom of the cavity 2. A rear ventilation plate 4 is fixedly installed on the side of the cavity 2 by screws. The rear ventilation plate 4 has ventilation holes 41. A base plate assembly 3 is installed at the bottom of the cavity 2. The base plate assembly 3 includes a base plate 31, a first connecting plate 32, a second connecting plate 33, a third connecting plate 34, and rivet holes 35. A water-cooled plate 5 is placed on the base plate 31. The three sides of the water-cooled plate 5 are respectively fixedly installed with the first connecting plate 32, the second connecting plate 33, and the third connecting plate 34 by several screws. Plate 34, the first connecting plate 32, the second connecting plate 33 and the third connecting plate 34 are fixedly mounted on the base plate 31 by screws. The bottom of the base plate assembly 3 has a plurality of rivet holes 35 around its perimeter. The rivet holes 35 are connected to the connecting holes 28 of the base plate 31 by screws. The water-cooled plate 5 is provided with an annular sealing silicone strip 51. The inner side of the annular sealing silicone strip 51 is provided with a plurality of cavity 2 connecting threaded holes 52. The cavity 2 connecting threaded holes 52 are locked to the cold plate connecting holes 211 by screws. The top of the water-cooled plate 5 is mounted with a reactor 7 by screws. The reactor 7 includes a plurality of power lines and temperature control feedback lines. The power lines pass through the reactor outlet waterproof connector 26 respectively, and the temperature control feedback lines pass through the temperature control feedback lines. A waterproof connector 27 is provided. A front terminal block assembly 6 is installed at the wire hole 24 using screws and several sealing rivet nuts 25. The front terminal block assembly 6 contains a reactor 7 inlet waterproof connector 61. A sheet metal part 62 is fixed to the front terminal block assembly 6 with nuts at the corresponding position of the reactor 7 inlet waterproof connector 61 using screws. The power lines of the reactor 7 pass through the reactor 7 inlet waterproof connector 61. A cavity cover plate 1 is installed on the top of the cavity 2 using screws. An interconnected water inlet pipe and drain pipe extend from the side of the water-cooled plate 5. The ends of the water inlet pipe and drain pipe are positioned and secured to the side edge of the base plate 31. An annular sealing silicone strip 51 is provided around the IGBT mounting hole 210 for sealing.The water-cooled plate 5 and the bottom of the cavity 2 are provided with positioning ring grooves corresponding to the positions of the annular sealing silicone strip 51. The annular sealing silicone strip 51 is pressed and disposed in the positioning ring grooves. The ventilation hole 21 and the ventilation plate ventilation hole 41 are connected. The ventilation hole 21 and the ventilation plate are located on different sides of the external reactor mounting area 23. An IGBT module is disposed inside the cavity 2. The IGBT module is installed on the water-cooled plate 5 by screws through the IGBT mounting hole 210. The cover plate sealing foam 22 is sealed and disposed on the cavity cover plate. Between cavity 1 and cavity 2, there are 6 sealing rivet nuts 25, 3 reactor outlet waterproof connectors 26, 3 IGBT mounting holes 210, 20 cold plate connection holes 211 around the 3 IGBT mounting holes 210, 9 base plate connection holes 28, 20 cavity 2 connection threaded holes 52, 9 rivet holes 35, and both the internal component mounting area 212 and the external reactor mounting area 23 are sheet metal components.

[0025] The installation method of this utility model is as follows: First, the water-cooled plate 5 is fixed onto the base plate assembly 3. The water-cooled plate 5 is placed on the base plate 31 in the base plate assembly 3. The first connecting plate 32, the second connecting plate 33, and the third connecting plate 34 in the base plate assembly 3 are connected to the threaded mounting holes on the side of the water-cooled plate 5 onto the base plate 31 using screws. Then, the bottom surface of the reactor 7 is installed onto the water-cooled plate 5 using screws. Next, the cavity 2 is connected to the base plate assembly 3 and the water-cooled plate 5 as a whole. That is, the nine rivet holes 35 provided around the bottom of the base plate assembly 3 are connected to the nine base plate 31 connecting holes 28 provided on the cavity 2 using screws. The 20 connecting holes 28 provided on the water-cooled plate 5 are connected to the base plate 31 connecting holes 28 provided on the cavity 2. The cavity 2 is connected to the 20 cold plate connection holes 211 on the cavity 2 by screws. The three power lines of the reactor 7 are passed through the three reactor output waterproof connectors 26 respectively. The temperature control feedback line of the reactor 7 is passed through the temperature control feedback line waterproof connector 27. The front terminal block assembly 6 is installed into the wire hole 24 of the cavity 2 by screws and six closed rivet nuts 25. Then, the three reactor 7 input power cables are passed through the reactor 7 input waterproof connector 61 in the front terminal block assembly 6 respectively. Then, the rear ventilation plate 4 is installed into the cavity 2 by screws. Finally, the cavity cover plate 1 is connected to the cavity 2 by screws.

[0026] In this invention, the cavity 2 is isolated from the external reactor mounting area 23 by sheet metal, thus isolating the reactor 7 from the internal component mounting area 212. Its advantages are:

[0027] 1. The heat generated by reactor 7 during operation cannot be directly radiated to the internal component mounting area 212, which greatly reduces the ambient temperature in the internal component mounting area 212.

[0028] Second: The ventilation holes 21 in the external reactor installation area 23 and the ventilation holes 41 on the rear ventilation plate 4 enable the external reactor installation area 23 to communicate with the external environment, effectively increasing heat radiation and reducing the temperature inside the external reactor installation area 23. This reduces the heat transferred to the internal component installation area 212 through the sheet metal parts, thus lowering the internal ambient temperature of the internal component installation area 212.

[0029] This novel structure can effectively reduce the ambient temperature in the device mounting area, improve the reliability of internal devices, and thus extend the life of the converter.

[0030] This utility model has excellent sealing performance, mainly reflected in the following aspects:

[0031] 1. The bottom of the cavity 2 can be used to install the IGBT onto the water cooling plate 5 through the IGBT mounting hole 210. The annular sealing silicone strip 51 on the water cooling plate 5 is compressed to prevent external air and water from entering the cavity 2 through the IGBT mounting hole 210.

[0032] Second: When the power cable and temperature control feedback line of reactor 7 enter the internal device installation area 212 from the external reactor installation area 23, they are sealed by the reactor outlet waterproof connector 26, the temperature control feedback line waterproof connector 27, and the reactor 7 inlet waterproof connector 61 in the front terminal block assembly 6. When the front terminal block assembly 6 is connected to the cavity 2, it is sealed by the through-line sealing strip 29, thereby ensuring the sealing of the reactor 7 inlet and outlet cables.

[0033] Three: When the cavity cover plate 1 is connected to the cavity 2, it is sealed by the cover plate sealing foam 22 provided on the top of the cavity 2.

[0034] In this utility model, a sheet metal part 62 is fixed by a nut on the front connection board assembly 6 with screws. When the waterproof connector is tightened, the nut of the waterproof connector is restricted from rotating. It is not necessary to fix the nut with one hand and rotate the connector with the other hand. The nut can be fixed in advance by the sheet metal, and the waterproof connector can be fixed on one side, which greatly improves the installation efficiency.

[0035] This utility model combines the cavity cover plate 1, cavity 2, base plate assembly 3, rear ventilation plate 4, water-cooled plate 5, front terminal block assembly 6, and reactor 7. Through experimental optimization, it can effectively reduce the ambient temperature in the device installation area, improve the reliability of internal components, and thus extend the life of the converter. This structure has good sealing performance, ensuring that dust or water in the device installation area does not cause device failure, thereby improving the overall reliability of the machine. The front terminal block assembly 6 is fixed to the sheet metal with nuts by screws, and a waterproof connector can be fixed on one side, which greatly improves the installation efficiency.

[0036] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. A reactor-external energy storage converter structure, characterized in that: The assembly includes a cavity cover (1), a cavity (2), a base plate assembly (3), a rear ventilation plate (4), a water-cooled plate (5), a front wiring board assembly (6), and a reactor (7). The top of the cavity (2) is provided with a cover sealing foam (22). The cavity (2) is internally separated into an internal device mounting area (212) and an external reactor mounting area (23). The external reactor mounting area (23) has ventilation holes (21) on its side. The front of the external reactor mounting area (23) has a wire hole (24). A wire hole sealing strip (29) is adhered around the wire hole (24). Several sealing rivet nuts (25) are provided around the wire hole (24). The top of the external reactor mounting area (23) is provided with a sealing foam foam (22). The cavity (2) has several reactor output waterproof connectors (26) and temperature control feedback line waterproof connectors (27). The bottom of the cavity (2) is provided with several IGBT mounting holes (210). Several cold plate connection holes (211) are provided around the IGBT mounting holes (210). Several base plate (31) connection holes (28) are provided around the bottom of the cavity (2). The side of the cavity (2) is fixed with a rear ventilation plate (4) by screws. The rear ventilation plate (4) is provided with ventilation plate ventilation holes (41). The bottom of the cavity (2) is installed with a base plate assembly (3). The base plate assembly (3) includes a base plate (31), a first connecting plate (32), a second connecting plate (33), a third connecting plate (34), and rivet holes (35). A water-cooled plate (5) is placed on the base plate (31). A first connecting plate (32), a second connecting plate (33), and a third connecting plate (34) are respectively fixedly installed on the three sides of the water-cooled plate (5) by a number of screws. The first connecting plate (32), the second connecting plate (33), and the third connecting plate (34) are fixedly installed on the base plate (31) by screws. A number of rivet holes (35) are provided around the bottom of the base plate assembly (3). The rivet holes (35) are connected to the connecting holes (28) of the base plate (31) by screws. An annular sealing silicone strip (51) is provided on the water-cooled plate (5). A number of cavity (2) connecting threaded holes (52) are provided on the inner side of the annular sealing silicone strip (51). The connecting threaded hole (52) is locked to the cold plate connecting hole (211) by screws. The top of the water-cooled plate (5) is fitted with a reactor (7) by screws. The reactor (7) includes several power lines and temperature control feedback lines. The power lines pass through the reactor outlet waterproof connector (26) respectively. The temperature control feedback lines pass through the temperature control feedback line waterproof connector (27). The front terminal block assembly (6) is installed at the position of the wire hole (24) by screws and several closed rivet nuts (25). The front terminal block assembly (6) is provided with a reactor (7) inlet waterproof connector (61). The front terminal block assembly (6) is fitted with a nut fixing sheet metal part (62) at the position of the reactor (7) inlet waterproof connector (61) by screws.The power lines of the reactor (7) pass through the reactor (7) inlet waterproof connector (61), and a cavity cover plate (1) is installed on the top of the cavity (2) by screws.

2. The energy storage converter structure with an external reactor as described in claim 1, characterized in that: The side of the water-cooled plate (5) is provided with an inlet pipe and a drain pipe that are connected to each other, and the ends of the inlet pipe and the drain pipe are positioned and locked on the side edge of the base plate (31).

3. The energy storage converter structure with an external reactor as described in claim 1, characterized in that: The annular sealing silicone strip (51) is sealed and surrounds the IGBT mounting hole (210). The bottom of the water-cooled plate (5) and the cavity (2) are provided with positioning ring grooves corresponding to the position of the annular sealing silicone strip (51). The annular sealing silicone strip (51) is squeezed and disposed in the positioning ring groove.

4. The energy storage converter structure with an external reactor as described in claim 1, characterized in that: The ventilation hole (21) and the ventilation plate ventilation hole (41) are connected, and the ventilation hole (21) and the ventilation plate are located on different sides of the external reactor installation area (23).

5. The energy storage converter structure with an external reactor as described in claim 1, characterized in that: The cavity (2) is equipped with an IGBT module, which is installed on the water cooling plate (5) by screws through the IGBT mounting hole (210).

6. The energy storage converter structure with an external reactor as described in claim 1, characterized in that: The cover sealing foam (22) is sealed between the cavity cover plate (1) and the cavity (2).

7. The energy storage converter structure with an external reactor as described in claim 1, characterized in that: There are 6 closed rivet nuts (25), 3 reactor outlet waterproof connectors (26), 3 IGBT mounting holes (210), 20 cold plate connection holes (211) are provided around the 3 IGBT mounting holes (210), 9 base plate (31) connection holes (28), 20 cavity (2) connection thread holes (52), and 9 rivet holes (35).

8. The energy storage converter structure with an external reactor as described in claim 1, characterized in that: Both the internal component mounting area (212) and the external reactor mounting area (23) are sheet metal components.

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