Connector and power conversion apparatus

Abstract

The utility model provides a connector and an electric power conversion device, the connector is used for the electric power conversion device, and the connector comprises a connecting seat; the first end of the connecting wire harness is connected with a circuit assembly of the power conversion equipment; and the connecting terminal is arranged at the second end of the connecting wire harness and is detachably connected with the connecting seat. According to the connector provided by the utility model, when the connector is installed, the connecting seat can be installed on the box body of the electric power conversion equipment, and then the connecting wire harness is placed in the box body and is connected with the connecting seat through the connecting terminal. Due to the existence of the connecting terminal, the connecting wire harness can be accurately and conveniently installed on the connecting seat, and the problem of wrong connection of the connecting wire harness can be prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of power conversion equipment, in particular to a connector and a power conversion equipment. Background Art

[0002] Currently, AC (alternating current) connectors are essential components for the AC input and output ports of household energy storage products and photovoltaic inverters. They can be categorized by function: grid-connected AC output ports, off-grid AC output ports, and diesel generator AC input ports. They can also be categorized by type: through-the-wall connectors and quick-connect connectors. Due to EMC (electromagnetic compatibility) issues, AC output wiring harnesses typically need to be routed around a magnetic ring. Therefore, there are three common types of AC connectors for on-site installation:

[0003] 1. If Figure 4 As shown, the wiring harness 2' and AC connector 1' are installed as a single unit. This method requires the production site to wrap the wiring harness 2' around the magnetic ring 3'. This method can solve the problem of the wiring harness 2' being unable to pass through the box 4' after being wrapped around the magnetic ring 3'. However, this method increases the production line process and thus production costs.

[0004] 2. If Figure 5 As shown, the wiring harness 2' is installed separately from the AC connector 1' after the magnetic ring 3' is wrapped around it. This method requires the wiring harness 2' to be locked to the AC connector 1' from inside the housing 4' after the AC connector 1' is installed. This method solves the problem of the wiring harness 2' being unable to pass through the housing 4' after the magnetic ring 3' is wrapped around it. However, it can easily lead to the wiring harness 2' being connected to the AC connector 1' at the wrong point when being locked.

[0005] 3. If Figure 6 As shown, the wiring harness 2' is wrapped around the magnetic ring 3' and then installed with the AC connector 1' as a complete unit. This method can also solve the problem of the wiring harness 2' being unable to pass through the housing 4' after the magnetic ring 3' is wrapped around it. However, the selected magnetic ring 3' must be considered in the mounting hole 41' of the AC connector 1' on the housing 4' to prevent the wiring harness 2' from being unable to pass through.

[0006] Therefore, how to design a connector that is easy to install and not prone to misconnection has become an urgent problem to be solved. Utility Model Content

[0007] The utility model aims to at least solve the problems of the AC wiring harness of the power conversion equipment being unable to be installed, the installation process being complicated, and the installation being wrong.

[0008] To this end, a first aspect of the present invention provides a connector.

[0009] A second aspect of the present invention provides a power conversion device.

[0010] In view of this, the first aspect of the present invention proposes a connector for use in power conversion equipment, the connector comprising: a connecting seat; a connecting harness, the first end of which is connected to the circuit component of the power conversion equipment; and a connecting terminal, which is arranged at the second end of the connecting harness and is detachably connected to the connecting seat.

[0011] The connector provided by the present invention can be used on power conversion equipment to achieve circuit connection. The connector includes a connecting seat, a connecting wire harness and a connecting terminal. The first end of the connecting wire harness is connected to the circuit component, and the second end of the connecting wire harness is connected to the connecting terminal, so that the connecting wire harness and the connecting seat can be detachably connected through the connecting terminal. It can be understood that since the present application is provided with a connecting terminal at the second end of the connecting wire harness, when installing the connector, the connecting seat can be installed first, and then the connecting wire harness can be connected to the connecting seat through the connecting terminal. Due to the presence of the connecting terminal, the connecting wire harness can be accurately and conveniently installed on the connecting seat, which can prevent the problem of incorrect connection of the connecting wire harness.

[0012] The connector provided by the present invention may also have the following additional technical features:

[0013] In some embodiments, optionally, the connector further includes: a magnetic ring, arranged on the connecting harness, for preventing electromagnetic interference to the power conversion device.

[0014] In this embodiment, the connector further comprises a magnetic ring which is arranged on the connecting wire harness and can prevent electromagnetic interference to the power conversion device.

[0015] In some embodiments, the connecting wire harness is optionally wrapped around the magnetic ring.

[0016] In this embodiment, when setting up the magnetic ring, the connecting wire harness can be passed through the magnetic ring and wrapped around the magnetic ring first, and then the connecting wire harness and the magnetic ring can be placed as a whole in the box and connected to the connecting seat and the circuit assembly, so that the magnetic ring does not need to pass through the hole on the box to enter the interior of the box, thereby improving the installation efficiency.

[0017] In some embodiments, optionally, the connection socket includes: a fixing plate; an input interface, which is arranged on one side of the fixing plate, and the connection terminal is detachably connected to the input interface; and an output interface, which is arranged on the other side of the fixing plate.

[0018] In this embodiment, the connector includes a fixing plate, an input interface, and an output interface. The fixing plate is used to securely mount the connector. The input interface is located on one side of the fixing plate, and the connecting terminal is detachably connected to the input interface. The output interface is located on the other side of the fixing plate.

[0019] In some embodiments, optionally, the connecting harness includes multiple wires, the connecting terminals include multiple wires, the wires correspond to the connecting terminals one by one, and the connector also includes: a connecting plug, multiple connecting terminals are fixed in the connecting plug and extend out of the connecting plug, and the shape of the connecting plug is adapted to the shape of the input interface.

[0020] In this embodiment, the connecting harness includes a plurality of wires, and the connecting terminals include a plurality of wires, and the wires correspond to the connecting terminals one by one, that is, each wire is provided with a connecting terminal, so that each wire can be easily installed. The connector also includes a connecting plug. A plurality of connecting terminals are fixed in the connecting plug and extend out of the connecting plug, and the shape of the connecting plug is adapted to the shape of the input interface. It can be understood that by providing the connecting plug to fix the plurality of connecting terminals, the plurality of connecting terminals can be directly installed as a whole with the connecting seat during installation, thereby improving the installation efficiency and saving time. At the same time, adapting the shape of the connecting plug to the shape of the input interface can not only improve the installation efficiency, but also prevent the occurrence of reverse installation.

[0021] In some embodiments, optionally, the connecting core and the connecting terminal are an integrated structure.

[0022] In this embodiment, the connecting core and the connecting terminal are provided as an integrated structure, which can ensure the strength between the connecting core and the connecting terminal and facilitate installation.

[0023] In some embodiments, optionally, the cross section of the input interface is trapezoidal, and the cross section of the connecting ferrule is trapezoidal.

[0024] In this embodiment, the cross section of the input interface is trapezoidal, and the cross section of the connecting ferrule is trapezoidal, thereby facilitating the matching of the connecting ferrule with the input interface and preventing the connecting ferrule from being inserted upside down.

[0025] In some embodiments, optionally, the connection terminal is crimped onto the second end of the connection harness.

[0026] In this embodiment, the connecting terminal is crimped onto the second end of the connecting wire harness, which is beneficial for fixing the connecting wire harness and the connecting terminal and ensuring that the connecting terminal is not easily dropped off.

[0027] A second aspect of the present invention provides a power conversion device, comprising: a connector as in any technical solution of the first aspect.

[0028] The power conversion device provided herein includes the connector according to any one of the technical solutions of the first aspect. Since the power conversion device provided herein includes the connector according to any one of the technical solutions of the first aspect, the power conversion device provided herein also has all the beneficial effects of the connector according to any one of the technical solutions of the first aspect, and thus will not be further elaborated here.

[0029] In some embodiments, optionally, the power conversion device also includes: a box body, a mounting port is provided on the side wall of the box body; a circuit assembly is provided in the box body; a connecting seat of the connector is provided at the mounting port, a connecting harness of the connector is provided in the box body, and a first end of the connecting harness is connected to the circuit assembly.

[0030] In this embodiment, the power conversion device further includes a housing and a circuit assembly. The circuit assembly is disposed within the housing, and a mounting opening is provided on a side wall of the housing. A connector connection socket is disposed within the mounting opening, capable of communicating with both the interior and exterior of the housing, thereby connecting the circuit assembly within the housing to external components via the connection socket. A connecting wire harness of the connector is disposed within the housing, with a first end of the connecting wire harness connected to the circuit assembly.

[0031] In some embodiments, optionally, the connecting seat is detachably provided on the outer side wall of the box body.

[0032] In this embodiment, the connecting seat is detachably arranged on the outer side wall of the box body, which is convenient for replacing the connecting seat and also convenient for installing the connecting harness and the connecting seat.

[0033] In some embodiments, optionally, the connection seat is welded to the outer side wall of the box body.

[0034] In this embodiment, the connection base is welded to the outer wall of the box body by welding, which can ensure the stability of the installation of the connection base.

[0035] In some embodiments, optionally, the connecting seat is bonded to the outer side wall of the box body.

[0036] In this embodiment, the connecting seat is bonded to the outer wall of the box body by bonding, so that the connecting seat can be firmly fixed without damaging the box body and the connecting seat.

[0037] Additional aspects and advantages of the present invention will become apparent in the following description or will be understood through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0039] Figure 1 A schematic structural diagram of a connector according to an embodiment of the present invention is shown;

[0040] Figure 2 One of the structural schematic diagrams of a power conversion device according to an embodiment of the present utility model is shown;

[0041] Figure 3 A second structural diagram of a power conversion device according to an embodiment of the present invention is shown;

[0042] Figure 4 One of the structural schematic diagrams of a power conversion device in the related art is shown;

[0043] Figure 5 The second structural diagram of the power conversion device in the related art is shown;

[0044] Figure 6 The third structural diagram of the power conversion device in the related art is shown.

[0045] in, Figures 1 to 3 The corresponding relationship between the reference numerals and component names is as follows:

[0046] 1 connector, 11 connecting seat, 111 fixing plate, 112 input interface, 113 output interface, 12 connecting harness, 121 wire, 13 connecting terminal, 14 magnetic ring, 15 connecting core, 16 OT terminal, 2 power conversion equipment, 21 box, 211 installation port, 22 circuit components.

[0047] in, Figures 4 to 6 The corresponding relationship between the reference numerals and component names is as follows:

[0048] 1′ AC connector, 2′ wiring harness, 3′ magnetic ring, 4′ box, 41′ mounting holes. DETAILED DESCRIPTION

[0049] In order to more clearly understand the above-mentioned objectives, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0050] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0051] Refer to the following Figures 1 to 3 The present invention describes a connector and a power conversion device according to some embodiments of the present invention.

[0052] According to an embodiment of the first aspect of the present invention, Figure 1 、 Figure 2 and Figure 3 As shown, the first aspect of the present invention provides a connector 1 for use with a power conversion device 2. The connector 1 includes a connection base 11, a connection harness 12, and a connection terminal 13. A first end of the connection harness 12 is connected to a circuit assembly 22 of the power conversion device 2. The connection terminal 13 is provided at a second end of the connection harness 12 and is detachably connected to the connection base 11.

[0053] The connector 1 provided by the present invention can be used on a power conversion device 2 to achieve circuit connection. The connector 1 includes a connecting base 11, a connecting harness 12 and a connecting terminal 13. The first end of the connecting harness 12 is connected to the circuit component 22, and the second end of the connecting harness 12 is connected to the connecting terminal 13, so that the connecting harness 12 and the connecting base 11 can be detachably connected through the connecting terminal 13. It can be understood that since the present application is provided with a connecting terminal 13 at the second end of the connecting harness 12, when installing the connector 1, the connecting base 11 can be installed first, and then the connecting harness 12 can be connected to the connecting base 11 through the connecting terminal 13. Due to the presence of the connecting terminal 13, the connecting harness 12 can be accurately and conveniently installed on the connecting base 11, which can prevent the problem of incorrect connection of the connecting harness 12.

[0054] In some embodiments, optionally, the connector 1 further includes: a magnetic ring 14 , which is provided on the connecting harness 12 and is used to prevent electromagnetic interference to the power conversion device 2 .

[0055] In this embodiment, the connector 1 further includes a magnetic ring 14 . The magnetic ring 14 can be disposed in the housing 21 and on the connecting harness 12 , and can prevent electromagnetic interference to the power conversion device 2 .

[0056] In some embodiments, the connecting wire harness 12 is optionally wound around the magnetic ring 14 .

[0057] In this embodiment, when the magnetic ring 14 is specifically set up, the connecting wire harness 12 can be first passed through the magnetic ring 14 and wrapped around the magnetic ring 14, and then the connecting wire harness 12 and the magnetic ring 14 are placed as a whole in the box 21 and connected to the connecting seat 11 and the circuit assembly 22, so that the magnetic ring 14 does not need to pass through the hole on the box 21 to enter the interior of the box 21, thereby improving the installation efficiency.

[0058] In some embodiments, optionally, the connection base 11 includes: a fixing plate 111; an input interface 112, which is arranged on one side of the fixing plate 111, and the connection terminal 13 is detachably connected to the input interface 112; and an output interface 113, which is arranged on the other side of the fixing plate 111.

[0059] In this embodiment, a mounting opening 211 can be provided on the side wall of the case 21, and the connecting base 11 can be provided at the mounting opening 211, so that an electrical connection between the inside and outside of the case 21 is achieved through the connecting base 11. The connecting base 11 includes a fixing plate 111, an input interface 112, and an output interface 113. The fixing plate 111 is installed at the mounting opening 211 and is located on the outside of the case 21, and is used to fix the connecting base 11 on the case 21. The input interface 112 is provided on a side of the fixing plate 111 close to the inside of the case 21, and the connecting terminal 13 is detachably connected to the input interface 112. The output interface 113 is provided on a side of the fixing plate 111 away from the inside of the case 21.

[0060] In some embodiments, optionally, the connecting seat 11 is an elastic connecting piece to facilitate installation.

[0061] In some embodiments, optionally, the connecting harness 12 includes multiple wires 121, the connecting terminals 13 include multiple wires 121, the wires 121 correspond one-to-one to the connecting terminals 13, and the connector 1 also includes: a connecting plug 15, multiple connecting terminals 13 are fixed in the connecting plug 15, and extend out of the connecting plug 15, and the shape of the connecting plug 15 is adapted to the shape of the input interface 112.

[0062] In this embodiment, the connecting harness 12 includes a plurality of wires 121, and the connecting terminals 13 include a plurality of wires 121, and the wires 121 correspond one to one with the connecting terminals 13, that is, each wire 121 is provided with a connecting terminal 13, so that each wire 121 can be easily installed. The connector 1 also includes a connecting plug 15. The plurality of connecting terminals 13 are fixed in the connecting plug 15 and extend out of the connecting plug 15, and the shape of the connecting plug 15 is adapted to the shape of the input interface 112. It can be understood that by providing the connecting plug 15 to fix the plurality of connecting terminals 13, the plurality of connecting terminals 13 can be directly installed as a whole with the connecting seat 11 during installation, thereby improving the installation efficiency and saving time. At the same time, adapting the shape of the connecting plug 15 to the shape of the input interface 112 can not only improve the installation efficiency, but also prevent the occurrence of reverse installation.

[0063] In some embodiments, optionally, a plurality of connection terminals 13 are fixed in the connection insert 15 in a preset shape.

[0064] In this embodiment, by setting the plurality of connection terminals 13 to a preset shape, it is possible to avoid the situation where the plurality of connection terminals 13 are connected incorrectly.

[0065] In some embodiments, optionally, the connecting core 15 and the connecting terminal 13 are an integrated structure.

[0066] In this embodiment, the connecting ferrule 15 and the connecting terminal 13 are provided as an integrated structure, which can ensure the strength between the connecting ferrule 15 and the connecting terminal 13 and facilitate installation.

[0067] In some embodiments, optionally, the cross section of the input interface 112 is trapezoidal, and the cross section of the connecting ferrule 15 is trapezoidal.

[0068] In this embodiment, the cross section of the input interface 112 is trapezoidal, and the cross section of the connecting ferrule 15 is trapezoidal, thereby facilitating the matching of the connecting ferrule 15 with the input interface 112 and preventing the connecting ferrule 15 from being inserted upside down.

[0069] In some embodiments, optionally, the cross section of the input interface 112 is triangular, and the cross section of the connecting ferrule 15 is triangular.

[0070] In some embodiments, optionally, the cross section of the input interface 112 is circular, and the cross section of the connecting ferrule 15 is circular.

[0071] In some embodiments, optionally, the connection terminal 13 is crimped onto the second end of the connection harness 12 .

[0072] In this embodiment, the connecting terminal 13 is crimped onto the second end of the connecting harness 12 , which is beneficial for fixing the connecting harness 12 and the connecting terminal 13 and ensuring that the connecting terminal 13 is not easily dropped off.

[0073] In some embodiments, optionally, the connector 1 comprises an AC connector.

[0074] In some embodiments, optionally, the first end of the connecting harness 12 is provided with an OT terminal 16 for connecting to the circuit assembly 22 .

[0075] According to an embodiment of the first aspect of the present invention, a connector is proposed, including an AC motherboard connector housing (connection seat 11), an AC motherboard connector core (connection core 15), an AC motherboard connector core cold-pressed terminal (connection terminal 13), an AC wiring harness (connection wiring harness 12), a magnetic ring, and an OT terminal (a first end of the connection wiring harness).

[0076] After the AC wire harness and the AC motherboard connector ferrule cold-pressed terminals are crimped, they are inserted into the AC motherboard connector ferrule. After assembly, the AC wire harness is fixed through the magnetic ring and the other end is crimped to the OT terminal. Finally, the assembled AC motherboard connector ferrule, AC motherboard connector ferrule cold-pressed terminals, AC wire harness, magnetic ring and OT terminal are packaged as a whole with the AC motherboard connector housing for installation.

[0077] During the production process, the AC motherboard connector shell can be installed on the box first, and then the assembled AC motherboard connector core, AC motherboard connector core cold-pressed terminals, AC wiring harness, magnetic ring and OT terminal blocks can be inserted into the AC motherboard connector shell from the inside of the box, thereby effectively solving the problem that the connector wiring harness cannot be installed after being wrapped around the magnetic ring. In addition, the AC motherboard connector core has an anti-mock engineering and there is no need to worry about incorrect insertion during the production process.

[0078] The application of this AC connector significantly improves production efficiency and avoids potential production errors, effectively resolving a series of issues arising from the winding of magnetic rings during the production of AC connector harnesses. Furthermore, it can be applied in various scenarios, including integrated energy storage systems, split energy storage systems, and photovoltaic inverters.

[0079] The key to this application is that its internal terminals can be separated from the connector body and prevent misconnection during insertion. This connector allows suppliers to prepare the wiring harness and wrap the magnetic ring around it separately from the connector. During production and installation, they only need to install the connector body and then insert the wiring harness with the terminals and magnetic ring wrapped around it into the connector body. This solves the problems of the AC wiring harness being unable to pass through the box opening after wrapping the magnetic ring around it, and the AC wiring harness and AC connector being connected at the wrong point during production and installation. It also solves the problem of difficult installation in the confined space inside the box, greatly improving production efficiency.

[0080] A second aspect of the present invention provides a power conversion device 2 , comprising: a connector 1 as in any one of the embodiments of the first aspect.

[0081] The power conversion device 2 provided in the present application includes the connector 1 as described in any embodiment of the first aspect. Since the power conversion device 2 provided in the present application includes the connector 1 as described in any embodiment of the first aspect, the power conversion device 2 provided in the present application also has all the beneficial effects of the connector 1 as described in any embodiment of the first aspect, and no further details are given here.

[0082] In some embodiments, optionally, the power conversion device 2 also includes: a box body 21, a mounting port 211 is provided on the side wall of the box body 21; a circuit assembly 22 is provided in the box body 21; the connecting seat 11 of the connector 1 is provided in the mounting port 211, the connecting harness 12 of the connector 1 is provided in the box body 21, and the first end of the connecting harness 12 is connected to the circuit assembly 22.

[0083] In this embodiment, the power conversion device 2 further includes a housing 21 and a circuit assembly 22. The circuit assembly 22 is disposed within the housing 21. A mounting opening 211 is provided on the sidewall of the housing 21. The connection socket 11 of the connector 1 is disposed within the mounting opening 211, enabling communication with both the interior and exterior of the housing 21. This allows the circuit assembly 22 within the housing 21 to connect to external components via the connection socket 11. The connection harness 12 of the connector 1 is disposed within the housing 21, with a first end of the connection harness 12 connected to the circuit assembly 22.

[0084] In some embodiments, optionally, the connecting seat 11 is detachably disposed on the outer side wall of the box body 21 .

[0085] In this embodiment, the connecting seat 11 is detachably provided on the outer side wall of the box body 21 , which is convenient for replacing the connecting seat 11 and also convenient for installing the connecting harness 12 and the connecting seat 11 .

[0086] In some embodiments, optionally, the connecting seat 11 is welded to the outer wall of the box body 21 .

[0087] In this embodiment, the connection base 11 is welded to the outer wall of the box body 21 by welding, which can ensure the stability of the installation of the connection base 11.

[0088] In some embodiments, optionally, the connecting seat 11 is bonded to the outer wall of the box body 21 .

[0089] In this embodiment, the connecting base 11 is bonded to the outer wall of the box body 21 by bonding, so that the connecting base 11 can be firmly fixed without damaging the box body 21 and the connecting base 11.

[0090] In some embodiments, optionally, the power conversion device 2 includes an energy storage device and a photovoltaic inverter.

[0091] In some embodiments, optionally, the energy storage device includes an integrated energy storage device and a split energy storage device.

[0092] In this utility model, the term "plurality" refers to two or more, unless otherwise specified. Terms such as "installed," "connected," "connected," and "fixed" should be interpreted broadly. For example, "connected" can refer to a fixed connection, a detachable connection, or an integral connection; "connected" can refer to a direct connection or an indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0093] Throughout this specification, terms such as "one embodiment," "some embodiments," and "specific embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0094] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A connector, characterized in that: For power conversion equipment, the connector comprises: Connecting seat; a connecting harness, a first end of the connecting harness being connected to a circuit component of the power conversion device; a connecting terminal, provided at the second end of the connecting harness and detachably connected to the connecting base; a magnetic ring, provided on the connecting harness, for preventing electromagnetic interference to the power conversion device; The connecting wire harness is wound around the magnetic ring; The connecting seat includes: Fixed plate; An input interface is provided on one side of the fixing plate, and the connecting terminal is detachably connected to the input interface; An output interface is provided on the other side of the fixing plate; The connecting harness includes a plurality of wires, the connecting terminals include a plurality of wires, the wires correspond to the connecting terminals one by one, and the connector further includes: A connecting plug, wherein the plurality of connecting terminals are fixed in the connecting plug and extend out of the connecting plug. The shape of the connecting plug is adapted to the shape of the input interface. The plurality of connecting terminals are fixed in the connecting plug in a preset shape.

2. The connector according to claim 1, wherein: The connecting core and the connecting terminal are an integrated structure.

3. The connector according to claim 1, wherein: The cross section of the input interface is arranged in a trapezoidal shape, and the cross section of the connecting core is arranged in a trapezoidal shape.

4. The connector according to any one of claims 1 to 3, characterized in that: The connecting terminal is crimped onto the second end of the connecting wire harness.

5. A power conversion device, characterized in that: include: The connector according to any one of claims 1 to 4.

6. The power conversion device according to claim 5, characterized in that Also includes: A box body, wherein a mounting opening is provided on a side wall of the box body; A circuit assembly is disposed in the box; The connection seat of the connector is arranged at the installation port, the connection harness of the connector is arranged in the box, and the first end of the connection harness is connected to the circuit component.

7. The power conversion device according to claim 6, characterized in that: The connecting seat is detachably arranged on the outer side wall of the box body; or The connecting seat is welded to the outer side wall of the box; or The connecting seat is bonded to the outer side wall of the box body.

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