Functional module and frequency converter with same

Abstract

The utility model provides a function module and a frequency converter with the same. The function module is a rectification module or an inversion module. The functional module comprises a heat dissipation piece, a first heat dissipation piece and a second heat dissipation piece, wherein the heat dissipation piece is provided with a first fixing surface and a second fixing surface which are oppositely arranged; the side plate assembly is arranged around the periphery of the heat dissipation piece, and the two ends of the side plate assembly protrude out of the first fixing face and the second fixing face respectively so as to define a first mounting cavity and a second mounting cavity respectively; the plurality of power devices are respectively arranged in the first mounting cavity and the second mounting cavity; and the busbar is connected with the plurality of power devices, and the connecting part of the busbar extends out of the side plate assembly. According to the technical scheme provided by the utility model, the technical problem that the occupied volume of the functional module in the prior art is relatively large can be solved.

Description

Technical Field

[0001] This utility model relates to the field of frequency converter technology, and more specifically, to a functional module and a frequency converter having the same. Background Technology

[0002] Currently, in the field of fracturing technology, in order to reduce energy emissions and pollution, electricity is typically used as the power source, with motors driving the fracturing equipment. The frequency converter, as a key component of the drive motor, functions to convert the on-site AC power into AC power with controllable voltage and frequency, driving the motor and adjusting its speed.

[0003] However, the functional modules of existing frequency converter equipment (which can be rectifier modules or inverter modules) are large in size, have an insufficiently compact structural layout, and are relatively complex in structure. Utility Model Content

[0004] The main objective of this invention is to provide a functional module and a frequency converter having the same, so as to solve the technical problem that the functional modules in the prior art occupy a large volume.

[0005] To achieve the above objectives, according to one aspect of the present invention, a functional module is provided, wherein the functional module is a rectifier module or an inverter module; the functional module includes:

[0006] A heat sink, wherein the heat sink has a first fixing surface and a second fixing surface disposed opposite to each other;

[0007] A side panel assembly is provided around the periphery of the heat sink, and the two ends of the side panel assembly protrude from the first fixing surface and the second fixing surface respectively to form a first mounting cavity and a second mounting cavity respectively.

[0008] Multiple power devices are respectively disposed in the first mounting cavity and the second mounting cavity;

[0009] A busbar is connected to the plurality of power devices, and the connection portion of the busbar extends out of the side plate assembly.

[0010] Furthermore, a wire harness fixing member is provided on the first fixing surface and / or the second fixing surface.

[0011] Furthermore, the side plate assembly is provided with at least one clearance opening, the clearance opening is disposed opposite to the connection portion of the busbar, the connection portion of the busbar passes through the clearance opening, and extends out of the side plate assembly through the clearance opening.

[0012] Furthermore, at least a portion of the connecting portion of the busbar abuts against the periphery of the clearance opening.

[0013] Furthermore, the functional module is a rectifier module, and the functional module further includes:

[0014] The limiting part is connected to the side plate assembly. The limiting end of the limiting part is installed on at least a portion of the clearance opening to form a limiting space adapted to the connecting part. The limiting end of the limiting part and at least a portion of the clearance opening are respectively used to abut and limit the connection part of the busbar on both sides.

[0015] Furthermore, the side plate assembly includes a first side plate and a second side plate connected at a preset angle, the busbar connection portion includes an inlet busbar and an outlet busbar, and the clearance opening portion includes a first clearance opening and a second clearance opening;

[0016] The first side plate is provided with the first clearance opening, and the inlet outlet is provided through the first clearance opening and extends out of the side plate assembly;

[0017] The second side plate is provided with a second clearance opening, and the outlet is provided through the second clearance opening and extends out of the side plate assembly.

[0018] Furthermore, the functional module is a rectifier module, a portion of the plurality of power devices is disposed in the first mounting cavity, another portion of the plurality of power devices is disposed in the second mounting cavity, and a portion of the plurality of power devices and the other portion of the plurality of power devices are disposed independently;

[0019] There are two busbars. One busbar is disposed in the first mounting cavity and connected to a part of the plurality of power devices. The other busbar is disposed in the second mounting cavity and connected to another part of the plurality of power devices. The connection parts of the one busbar and the connection parts of the other busbar are spaced apart.

[0020] Furthermore, the heat sink is a cooling plate, and a heat exchange channel is provided inside the cooling plate; the functional module is an inverter module, and a power supply mounting plate is also provided on the portion of the first fixed surface near the heat exchange channel and / or on the second fixed surface near the heat exchange channel, and the drive power supply is detachably mounted on the power supply mounting plate.

[0021] Furthermore, the functional module is an inverter module, and the busbar includes a first connecting busbar and a second connecting busbar that are interconnected. The first connecting busbar is connected to the portion of the plurality of power devices located in the first mounting cavity, and the second connecting busbar is connected to the portion of the plurality of power devices located in the second mounting cavity. The first connecting portion of the first connecting busbar and the second connecting portion of the second connecting busbar both extend out of the side plate assembly.

[0022] Further, the first connecting bar includes a first plate, a second plate, and a third plate connected in sequence. The first plate is disposed within the first mounting cavity and connected to the portion of the plurality of power devices located in the first mounting cavity. The second plate is provided with the first connecting portion, and the third plate is located within the second mounting cavity. The second connecting bar includes a fourth plate and a fifth plate connected in sequence. The fourth plate is disposed within the second mounting cavity and connected to the portion of the plurality of power devices located in the second mounting cavity. The fifth plate is provided with the second connecting portion.

[0023] Wherein, the third plate body is connected to the fourth plate body; and / or,

[0024] The fifth plate is at least partially opposite to the second plate, and the first connecting portion and the second connecting portion are spaced apart.

[0025] Furthermore, the functional module also includes:

[0026] A first mounting cover is disposed on one side of the side panel assembly to seal the first mounting cavity; and / or,

[0027] A second mounting cover is disposed on the other side of the side panel assembly to seal the second mounting cavity.

[0028] Furthermore, a first positioning groove is provided on one side of the heat sink, the first positioning groove being adapted to the shape of the corresponding power device; and / or,

[0029] A second positioning groove is provided on the other side of the heat sink, and the shape of the second positioning groove is adapted to the shape of the corresponding power device.

[0030] Furthermore, the functional module also includes:

[0031] An interface board, mounted outside the side plate assembly, is provided with a liquid inlet and a liquid outlet, both of which are connected to the heat exchange channel of the heat sink; and / or,

[0032] A connecting component is disposed on the side plate assembly, the connecting component including an optical path connection connector and / or a circuit connection connector outside the side plate assembly.

[0033] According to another aspect of the present invention, a frequency converter is provided, the frequency converter including the functional modules provided above.

[0034] The technical solution of this utility model facilitates the optimization of the structural layout of functional modules, improves the compactness of the structural layout, and reduces the volume occupied by the functional modules. By mounting multiple power devices on both sides of the heat sink, it is easy for multiple power devices to contact each other through a single heat sink, thereby simultaneously achieving cooling and heat dissipation for multiple power devices, ensuring the heat dissipation effect for multiple power devices, and further optimizing the structural layout. In addition, the above-mentioned arrangement makes the power module modular, which facilitates quick assembly and installation in the field, improving the convenience of installation. Attached Figure Description

[0035] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0036] Figure 1 A structural schematic diagram of a rectifier module provided according to an embodiment of the present invention is shown from one perspective;

[0037] Figure 2 A structural schematic diagram of a rectifier module provided according to an embodiment of the present invention is shown from another perspective;

[0038] Figure 3 A schematic diagram of the internal structure of a rectifier module provided according to an embodiment of the present invention is shown;

[0039] Figure 4 An exploded view of a portion of the structure of a rectifier module provided according to an embodiment of the present invention is shown.

[0040] Figure 5 An exploded view of a portion of the structure of a rectifier module provided according to an embodiment of the present invention is shown from another perspective.

[0041] Figure 6 A schematic diagram of the inverter module provided according to an embodiment of the present invention is shown from one perspective.

[0042] Figure 7 A structural schematic diagram of an inverter module provided according to an embodiment of the present invention is shown from another perspective;

[0043] Figure 8 A schematic diagram of the internal structure of an inverter module provided according to an embodiment of the present invention is shown;

[0044] Figure 9 An exploded view of a portion of the structure of an inverter module provided according to an embodiment of the present invention is shown.

[0045] The above figures include the following reference numerals:

[0046] 10. Heat sink; 11. First positioning groove; 12. Second positioning groove;

[0047] 20. Side panel assembly; 21. First side panel; 22. Second side panel;

[0048] 23. Avoidance opening; 231. First avoidance opening; 232. Second avoidance opening;

[0049] 30. Power devices;

[0050] 40. Mother row;

[0051] 41. Inlet drain; 411. First connecting plate; 412. Second connecting plate;

[0052] 42. Export discharge;

[0053] 43. First connecting row; 431. First connecting part; 432. First plate; 433. Second plate; 434. Third plate;

[0054] 44. Second connecting row; 441. Second connecting part; 442. Fourth plate; 443. Fifth plate;

[0055] 50. Limiting part; 51. First limiting plate; 52. Second limiting plate;

[0056] 61. First mounting cover; 62. Second mounting cover;

[0057] 70. Interface board; 71. Liquid inlet port; 72. Liquid outlet port;

[0058] 80. Connecting components; 81. Optical path connectors; 82. Electrical circuit connectors;

[0059] 90. Operating handle;

[0060] 100. Wire harness fastener. Detailed Implementation

[0061] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0062] like Figures 1 to 9As shown, one embodiment of this utility model provides a functional module, which is a rectifier module or an inverter module. The functional module includes: a heat sink 10, a side plate assembly 20, multiple power devices 30, and a busbar 40. The heat sink 10 has a first fixing surface and a second fixing surface arranged opposite to each other. The side plate assembly 20 is arranged around the periphery of the heat sink 10, and its two ends protrude from the first fixing surface and the second fixing surface, respectively, to form a first mounting cavity and a second mounting cavity. The multiple power devices 30 are respectively disposed in the first mounting cavity and the second mounting cavity. The busbar 40 is connected to the multiple power devices 30, and the connecting part of the busbar 40 extends out of the side plate assembly 20.

[0063] The functional modules provided in this embodiment facilitate optimization of their structural layout, improve their compactness, and reduce their volume. By mounting multiple power devices 30 on both sides of the heat sink 10, it is easy for one heat sink 10 to contact multiple power devices 30 simultaneously, ensuring effective heat dissipation and further optimizing the structural layout. Furthermore, the modular layout of the power devices 30 facilitates rapid assembly and installation in the field, improving installation convenience.

[0064] In this embodiment, a wire harness fixing member 100 is provided on the first fixing surface and / or the second fixing surface. This structural arrangement facilitates the fixing of the wire harness on the first fixing surface and / or the second fixing surface using the wire harness fixing member 100, making it easier to organize and manage the wire harness, as well as facilitating the connection of the wire harness and ensuring the stability of the wire harness connection.

[0065] Specifically, the side panel assembly 20 is provided with at least one clearance opening 23, which is disposed opposite to the connection portion of the busbar 40. The connection portion of the busbar 40 passes through the clearance opening 23 and extends out of the side panel assembly 20 through the clearance opening 23. This structural arrangement facilitates connection with other external components through the connection portion of the busbar 40, and also facilitates connection and wiring operations during assembly.

[0066] In this embodiment, at least a portion of the connecting part of the busbar 40 abuts against the periphery of the clearance opening 23. This facilitates improved positioning stability of the connecting part of the busbar 40, preventing unstable installation or easy shaking of the connecting part of the busbar 40, and thus ensuring the connection stability of the connecting part of the busbar 40 with external components.

[0067] like Figures 1 to 5As shown, the functional module is a rectifier module, and it also includes a limiting part 50. The limiting part 50 is connected to the side plate assembly 20. The limiting end of the limiting part 50 is installed in at least a portion of the clearance opening 23 to form a limiting space adapted to the connecting part. The limiting end of the limiting part 50 and at least a portion of the clearance opening 23 are respectively used to abut and limit the connection of the busbar 40 to both sides. With this structural arrangement, by abutting and positioning both sides of the busbar 40, the stability of the setting position of the connecting part of the busbar 40 can be further improved, and the shaking of the connecting part of the busbar 40 during connection can be better avoided, thereby better ensuring the connection stability of the connecting part of the busbar 40 when connected to external components.

[0068] Specifically, the functional module is a rectifier module. The side panel assembly 20 includes a first side panel 21 and a second side panel 22 connected at a preset angle. The connection part of the busbar 40 includes an inlet busbar 41 and an outlet busbar 42. The clearance opening 23 includes a first clearance opening 231 and a second clearance opening 232. The first side panel 21 is provided with a first clearance opening 231, and the inlet busbar 41 passes through the first clearance opening 231 and extends out of the side panel assembly 20. The second side panel 22 is provided with a second clearance opening 232, and the outlet busbar 42 passes through the second clearance opening 232 and extends out of the side panel assembly 20. This structural arrangement allows the inlet busbar 41 and the outlet busbar 42 to be located in different parts of the side panel assembly 20, facilitating the separation of the inlet and outlet connections and preventing interference between the inlet busbar 41 and the outlet busbar 42.

[0069] Specifically, the functional module is a rectification module. There are at least two first clearance openings 231, spaced apart along the extension direction of the first side plate 21. The connecting portion of the busbar 40 includes at least two inlet outlets 41, each corresponding to one of the at least two first clearance openings 231, with each inlet outlet 41 passing through its corresponding first clearance opening 231. The rectification module also includes a limiting part 50, extending along the extension direction of the first side plate 21. The limiting end of the limiting part 50 is installed at the at least two first clearance openings 231 and forms at least two limiting spaces adapted to the at least two inlet outlets 41. The limiting end of the limiting part 50 and at least a portion of the periphery of the at least two first clearance openings 231 respectively abut against and limit the movement of the inlet outlets 41. With this structural arrangement, a limiting part 50 can cooperate with at least two first clearance ports 231 to position the inlet outlet 41 in each first clearance port 231, ensuring the positioning stability of the inlet outlet 41 in each first clearance port 231, and thus ensuring the stability of the connection state when each inlet outlet 41 is connected to external components.

[0070] Specifically, imports ranked 41 have three entries, and exports ranked 42 have two entries.

[0071] Specifically, the functional module is a rectifier module. The limiting part 50 includes a first limiting plate 51 and a second limiting plate 52 connected to each other at a first predetermined angle. The first limiting plate 51 is connected to the first side plate 21, and one side of the second limiting plate 52 forms the limiting end of the limiting part 50. The inlet drain 41 includes a first connecting plate 411 and a second connecting plate 412 connected at a second predetermined angle. The first connecting plate 411 passes through the first clearance opening 231, and the second connecting plate 412 is located outside the side plate assembly 20 and opposite to the first side plate 21. Both sides of the first connecting plate 411 abut against at least a portion of one side of the second limiting plate 52 and the periphery of the first clearance opening 231, respectively. This structural arrangement is simple and facilitates better simultaneous abutment and positioning of at least two inlet drains 41 through the limiting part 50, resulting in good positioning stability.

[0072] Specifically, the functional module is a rectifier module. The connection portion of the busbar 40 includes at least two outlet outlets 42, which are spaced apart along the extension direction of the second side plate 22. Each outlet outlet 42 is installed within the second clearance opening 232 and at least partially abuts against the periphery of the second clearance opening 232. This structural arrangement facilitates improved positioning stability of the outlet outlets 42 and ensures stable connection when connecting them to external components.

[0073] Specifically, the functional module is a rectifier module. A portion of multiple power devices 30 is housed in a first mounting cavity, and another portion of the multiple power devices 30 is housed in a second mounting cavity. The portions of the multiple power devices 30 and the other portion are independently configured. There are two busbars 40: one busbar 40 is housed in the first mounting cavity and connected to a portion of the multiple power devices 30, and the other busbar 40 is housed in the second mounting cavity and connected to the other portion of the multiple power devices 30. The connection portions of the two busbars 40 are spaced apart. This structural arrangement allows the multiple power devices 30 to form two independent rectifier submodules that are not electrically connected separately. These two rectifier submodules can operate independently, or they can be electrically connected via other connecting components 80, thus achieving different connection methods and improving connection flexibility.

[0074] Specifically, the heat sink 10 is a cooling plate with a heat exchange channel inside; the functional module is an inverter module, and a power supply mounting plate is also provided on the portion of the first fixed surface near the heat exchange channel and / or on the portion of the second fixed surface near the heat exchange channel, with the drive power supply detachably mounted on the power supply mounting plate. This structural arrangement facilitates effective heat dissipation from the power supply mounting plate of the inverter module, improving the heat dissipation effect and thus ensuring the effective operation of the inverter module.

[0075] like Figures 6 to 9 As shown, the functional module is an inverter module. The busbar 40 includes a first connecting busbar 43 and a second connecting busbar 44 that are interconnected. The first connecting busbar 43 is connected to the portion of the multiple power devices 30 located in the first mounting cavity, and the second connecting busbar 44 is connected to the portion of the multiple power devices 30 located in the second mounting cavity. The first connecting portion 431 of the first connecting busbar 43 and the second connecting portion 441 of the second connecting busbar 44 both extend outside the side plate assembly 20. This structural arrangement facilitates the connection layout of the busbar 40, improves the compactness of the busbar 40's structural layout and the reliability of the connections, ensures the connection stability of the overall inverter module, and thus facilitates the guarantee of the inverter module's operational stability.

[0076] Specifically, the functional module is an inverter module. The first connection bar 43 includes a first plate 432, a second plate 433, and a third plate 434 connected in sequence. The first plate 432 is disposed within a first mounting cavity and connected to the portion of the multiple power devices 30 located within the first mounting cavity. The second plate 433 has a first connecting portion 431, and the third plate 434 is located within a second mounting cavity. The second connection bar 44 includes a fourth plate 442 and a fifth plate 443 connected in sequence. The fourth plate 442 is disposed within the second mounting cavity and connected to the portion of the multiple power devices 30 located within the second mounting cavity. The fifth plate 443 has a second connecting portion 441. The third plate 434 is connected to the fourth plate 442. This arrangement facilitates the connection between the first connection bar 43 and the second connection bar 44, optimizes the structural layout, and improves connection stability.

[0077] Specifically, the third plate 434 and the fourth plate 442 are arranged parallel to each other, and the third plate 434 and the fourth plate 442 are attached together and locked together by a locking member. Specifically, the locking member can be a locking screw.

[0078] Specifically, at least a portion of the fifth plate 443 and the second plate 433 are arranged opposite each other, and the first connecting portion 431 and the second connecting portion 441 are spaced apart. This structural arrangement facilitates optimized structural layout, improves structural compactness, and allows for easy connection of the first connecting portion 431 and the second connecting portion 441 to external components. Specifically, there can be two first connecting portions 431 and one second connecting portion 441. The two first connecting portions 431 can have different structures to achieve different connection functions.

[0079] In this embodiment, the functional module further includes a first mounting cover 61, which is disposed on one side of the side plate assembly 20 to seal the first mounting cavity. This structural arrangement facilitates better protection of the power device 30 within the first mounting cavity.

[0080] In this embodiment, the functional module further includes a second mounting cover 62, which is disposed on the other side of the side plate assembly 20 to seal the second mounting cavity. This facilitates better protection of the power device 30 inside the second mounting cavity.

[0081] Specifically, the heat sink 10 is a cooling plate, which has a good water cooling effect and facilitates effective heat dissipation. Specifically, the cooling plate has liquid channels arranged inside. After the coolant flows into the cooling plate through the liquid channels, it carries away the heat of the power device 30 set on the cooling plate, thereby achieving the purpose of cooling the power device 30.

[0082] In this embodiment, a first positioning groove 11 is provided on one side of the heat sink 10. The shape of the first positioning groove 11 is adapted to the shape of the corresponding power device 30, so as to facilitate the positioning of the power device 30 in the first mounting cavity and improve the installation stability of the power device 30 in the first mounting cavity.

[0083] In this embodiment, a second positioning groove 12 is provided on the other side of the heat sink 10. The shape of the second positioning groove 12 is adapted to the shape of its corresponding power device 30, so as to facilitate the positioning of the power device 30 in the second mounting cavity and improve the installation stability of the power device 30 in the second mounting cavity.

[0084] Specifically, the functional module also includes an interface board 70, which is mounted outside the side plate assembly 20. The interface board 70 has a liquid inlet 71 and a liquid outlet 72, both of which are connected to the heat exchange channel of the heat sink 10. This structural arrangement facilitates liquid inlet and outlet operations into the heat sink 10 via the interface board 70, improving the heat dissipation effect of the heat sink 10. Furthermore, by placing the interface board 70 outside the side plate assembly 20, leakage from the interface board 70 can be prevented from affecting the normal operation of the power device 30. Specifically, the connection portions of the interface board 70 and the busbar 40 are spaced apart and located on different sides of the side plate assembly 20, further minimizing the impact of leakage from the interface board 70 on the connection portions of the busbar 40.

[0085] Specifically, the functional module also includes a connection component 80, which is disposed on the side panel assembly 20. The connection component 80 includes an optical path connection connector 81 and / or a circuit connection connector 82 located outside the side panel assembly 20. This facilitates connection with external components via the connection component 80. Specifically, the optical path connection connector 81 mainly refers to the signal used to control the switching of the high-voltage power device 30. This signal is transmitted through optical fiber to prevent signal interference in strong electromagnetic environments. The circuit connection connector 82 is used to supply power to the driving component and the temperature signal from the temperature sensing element mounted on the heat sink 10.

[0086] According to another aspect of the present invention, a frequency converter is provided, which includes the functional modules provided above.

[0087] In this embodiment, for ease of operation, an operating handle 90 may be provided on the side panel assembly 20 or the connecting component 80.

[0088] Specifically, in this embodiment, the busbar 40 is mounted on the power device 30 via fastening components, which can be bolts, and the power device 30 has corresponding threads. The power device 30 includes devices such as IGBTs, diodes, and capacitors. The function of the power device 30 is to switch on and off under the control of the control system, thereby controlling the output voltage and current by turning the current on and off.

[0089] Embodiment 2 of this utility model provides a frequency converter, which includes the rectifier module provided above.

[0090] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects: by adopting independent functional modules, the overall structural layout compactness can be improved, the overall volume occupied can be reduced, rapid on-site installation can be achieved, and the messy wiring layout can be reduced, which facilitates the improvement of the overall structural layout compactness of the frequency converter. In addition, by adopting external optical path connection connectors, circuit connection connectors, and interface boards, the problem of leakage during on-site maintenance can also be effectively avoided, facilitating connection operations with external components and speeding up maintenance.

[0091] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0092] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0093] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0094] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0095] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0096] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A functional module, characterized in that, The functional module is a rectifier module or an inverter module; the functional module includes: a heat sink (10), the heat sink (10) having a first fixing surface and a second fixing surface arranged opposite to each other; Side plate assembly (20) is arranged around the periphery of the heat sink (10), and the two ends of the side plate assembly (20) protrude from the first fixing surface and the second fixing surface respectively to form a first mounting cavity and a second mounting cavity respectively. Multiple power devices (30) are respectively disposed in the first mounting cavity and the second mounting cavity; Busbar (40) is connected to the plurality of power devices, and the connection portion of the busbar (40) extends out of the side plate assembly (20).

2. The functional module according to claim 1, characterized in that, A wire harness fastener (100) is provided on the first fixing surface and / or the second fixing surface.

3. The functional module according to claim 1, characterized in that, The side panel assembly (20) is provided with at least one clearance opening (23), the clearance opening (23) is disposed opposite to the connecting part of the busbar (40), the connecting part of the busbar (40) passes through the clearance opening (23) and extends out of the side panel assembly (20) through the clearance opening (23).

4. The functional module according to claim 3, characterized in that, At least a portion of the connecting portion of the busbar (40) abuts against the periphery of the clearance opening (23).

5. The functional module according to claim 3, characterized in that, The functional module is a rectifier module, and the functional module also includes: A limiting part (50) is connected to the side plate assembly (20). The limiting end of the limiting part (50) is installed at least part of the clearance opening (23) and forms a limiting space adapted to the connecting part with at least part of the clearance opening (23). The limiting end of the limiting part (50) and at least part of the clearance opening (23) are respectively used to abut and limit the connection with both sides of the connecting part of the busbar (40).

6. The functional module according to claim 5, characterized in that, The side panel assembly (20) includes a first side panel (21) and a second side panel (22) connected at a preset angle. The connecting part of the busbar (40) includes an inlet busbar (41) and an outlet busbar (42). The clearance opening (23) includes a first clearance opening (231) and a second clearance opening (232). The first side plate (21) is provided with the first clearance opening (231), and the inlet outlet (41) passes through the first clearance opening (231) and extends out of the side plate assembly (20); The second side plate (22) is provided with a second clearance opening (232), and the outlet (42) passes through the second clearance opening (232) and extends out of the side plate assembly (20).

7. The functional module according to claim 1, characterized in that, The functional module is a rectifier module. A portion of the plurality of power devices (30) is disposed in the first mounting cavity, and another portion of the plurality of power devices (30) is disposed in the second mounting cavity. A portion of the plurality of power devices (30) and the other portion of the plurality of power devices (30) are disposed independently. There are two busbars (40). One busbar (40) is disposed in the first mounting cavity and connected to a part of the plurality of power devices (30). The other busbar (40) is disposed in the second mounting cavity and connected to another part of the plurality of power devices (30). The connection parts of one busbar (40) and the connection parts of the other busbar (40) are spaced apart.

8. The functional module according to claim 1, characterized in that, The heat sink is a cooling plate, and a heat exchange channel is provided inside the cooling plate; the functional module is an inverter module, and a power supply mounting plate is also provided on the part of the first fixed surface near the heat exchange channel and / or on the second fixed surface near the heat exchange channel, and the drive power supply is detachably mounted on the power supply mounting plate.

9. The functional module according to claim 1, characterized in that, The functional module is an inverter module. The busbar (40) includes a first connecting busbar (43) and a second connecting busbar (44) that are connected to each other. The first connecting busbar (43) is connected to the portion of the plurality of power devices (30) located in the first mounting cavity. The second connecting busbar (44) is connected to the portion of the plurality of power devices (30) located in the second mounting cavity. The first connecting part (431) of the first connecting busbar (43) and the second connecting part (441) of the second connecting busbar (44) both extend out of the side plate assembly (20).

10. The functional module according to claim 9, characterized in that, The first connecting bar (43) includes a first plate (432), a second plate (433), and a third plate (434) connected in sequence. The first plate (432) is disposed in the first mounting cavity and connected to the portion of the plurality of power devices (30) located in the first mounting cavity. The second plate (433) is provided with the first connecting part (431). The third plate (434) is located in the second mounting cavity. The second connecting bar (44) includes a fourth plate (442) and a fifth plate (443) connected in sequence. The fourth plate (442) is disposed in the second mounting cavity and connected to the portion of the plurality of power devices (30) located in the second mounting cavity. The fifth plate (443) is provided with the second connecting part (441). The third plate (434) is connected to the fourth plate (442); and / or, The fifth plate (443) is disposed opposite to at least a portion of the second plate (433), and the first connecting portion (431) and the second connecting portion (441) are disposed at a distance.

11. The functional module according to any one of claims 1 to 10, characterized in that, The functional module also includes: A first mounting cover (61) is disposed on one side of the side panel assembly (20) to seal the first mounting cavity; and / or, A second mounting cover (62) is provided on the other side of the side panel assembly (20) to seal the second mounting cavity.

12. The functional module according to any one of claims 1 to 10, characterized in that, A first positioning groove (11) is provided on one side of the heat sink (10), and the first positioning groove (11) is adapted to the shape of the corresponding power device (30); and / or, A second positioning groove (12) is provided on the other side of the heat sink (10), and the shape of the second positioning groove (12) is adapted to the shape of the corresponding power device (30).

13. The functional module according to any one of claims 1 to 10, characterized in that, The functional module also includes: An interface plate (70) is mounted outside the side plate assembly (20). The interface plate (70) is provided with a liquid inlet (71) and a liquid outlet (72), both of which are connected to the heat exchange channel of the heat sink (10); and / or, A connecting component (80) is disposed on the side panel assembly (20), the connecting component (80) including an optical path connection connector (81) and / or a circuit connection connector (82) outside the side panel assembly (20).

14. A frequency converter, characterized in that, The frequency converter includes the functional module as described in any one of claims 1 to 13.

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