Direct current charging station

Abstract

The utility model relates to a vehicle electrical technology field discloses a direct current charging seat. Direct current charging seat includes the casing, terminal assembly and wiring part, is equipped with the installation cavity and the connecting cavity that intercommunicate in the casing, is equipped with the connecting port on the casing, and the connecting port intercommunication connecting cavity and the outside of casing. One end of terminal assembly is located in the installation cavity, and the other end is located in the connecting cavity. One end of wiring part is located in the connecting cavity, and is connected with terminal assembly, and the other end is located in the connecting cavity outside, and is equipped with at least two wiring positions, and the wiring position is used for connecting with cable. Terminal assembly connects cable through wiring part, and then is connected to the vehicle battery through cable, makes the connection between direct current charging seat and vehicle battery more flexible. Wiring part can be connected at least two cables in parallel simultaneously to carry out shunt, improves the current -carrying capacity of direct current charging seat, and increases the total surface area of the cable connected with wiring part, facilitates the heat dissipation, weakens the heating condition of cable.

Description

Technical Field

[0001] This utility model relates to the field of vehicle electrical technology, and in particular to a DC charging socket. Background Technology

[0002] Currently, the terminals of onboard chargers are primarily connected to the vehicle battery via cables. However, due to space limitations within the vehicle, the cable diameter is typically small, and the heat generated during operation makes it difficult for onboard chargers to achieve high-current fast charging. Some technologies utilize liquid cooling systems, but these are expensive, and installing a liquid cooling system inside the vehicle would also take up space. Alternatively, some technologies use copper busbars to connect the terminals and the vehicle battery to increase the onboard charger's current-carrying capacity and enable high-current fast charging. Utility Model Content

[0003] The technical problem to be solved by this utility model is that, in related technologies, the connection between the vehicle charging dock and the battery is limited by the installation space inside the vehicle and the heating phenomenon of the cable, as well as the constraints of cost and processing difficulty, making it difficult to improve the current carrying capacity of the vehicle charging dock.

[0004] To solve the above-mentioned technical problems, this utility model provides a DC charging dock, comprising:

[0005] The housing has an internally connected mounting cavity and a connecting cavity, and the housing has a connecting port that connects the connecting cavity to the outside of the housing.

[0006] A terminal assembly, one end of which is located within the mounting cavity and the other end of which is located within the connection cavity;

[0007] A connector is provided, which passes through the connection port. One end of the connector is located inside the connection cavity and is connected to the terminal assembly, while the other end is located outside the connection cavity and has at least two wiring positions for connecting to cables.

[0008] According to one embodiment of the present invention, there are two terminal assemblies, namely a first terminal assembly and a second terminal assembly, and there are two connectors, namely a first connector and a second connector. The first connector is connected to the first terminal assembly, and the second connector is connected to the second terminal assembly.

[0009] The first connector includes a first connecting part and a first wiring part. The first connecting part is connected to the first terminal assembly, and the wiring position of the first connector is located on the first wiring part.

[0010] The second connector includes a second connecting part and a second wiring part. The second connecting part is connected to the second terminal assembly, and the wiring position of the second connector is located on the second wiring part.

[0011] According to one embodiment of the present invention, the first connector further includes a first bent portion, and the first connecting portion, the first bent portion and the first connector are connected in sequence. The first bent portion is bent so that the first connector and the first connecting portion are located on different planes.

[0012] The second connector further includes a second bend, and the second connecting part, the second bend, and the second wiring part are connected in sequence. The second bend is bent so that the second wiring part and the second connecting part are located on different planes.

[0013] According to one embodiment of the present invention, the surfaces of the first bent portion and the second bent portion are respectively provided with an insulating layer.

[0014] According to one embodiment of the present invention, the bending direction of the first bending portion is opposite to that of the second bending portion, so that the first wiring portion and the second wiring portion are far apart from each other.

[0015] According to one embodiment of the present invention, a partition is provided in the connecting cavity, the partition dividing the connecting cavity into a first sub-cavity and a second sub-cavity, the first sub-cavity and the second sub-cavity respectively communicating with the mounting cavity, one end of the first terminal assembly connected to the first connector being located in the first sub-cavity, and one end of the second terminal assembly connected to the second connector being located in the second sub-cavity.

[0016] According to one embodiment of the present invention, the terminal assembly includes a plug and a connector, the plug being located within the mounting cavity, one end of the plug abutting against one end of the connector, and being detachably connected;

[0017] The other end of the connector is located inside the connection cavity and is connected to the wiring component.

[0018] According to one embodiment of the present invention, a connecting plane is provided on the peripheral wall of the terminal assembly, and the connecting plane is in contact with the wiring component.

[0019] According to one embodiment of the present invention, at least one first limiting block is provided in the connecting cavity. One side of the first limiting block is connected to the inner wall of the connecting cavity, and the other side forms a guide surface. During the assembly of the connector, the connector can move along the guide surface.

[0020] According to one embodiment of the present invention, the housing is provided with an assembly post, the assembly post is provided with an assembly hole, the assembly hole communicates with the connecting cavity, the terminal assembly is provided with a first connecting hole, the wiring component is provided with a second connecting hole, and the central axis of the assembly hole is coaxial with the first connecting hole and the second connecting hole.

[0021] Compared with the prior art, the DC charging dock of this utility model has the following advantages:

[0022] In this embodiment of the DC charging socket, the terminal assembly connects to cables via connectors, which in turn connect to the vehicle battery, making the connection between the DC charging socket and the vehicle battery more flexible. The connectors have at least two terminals, allowing for the simultaneous parallel connection of at least two cables for current shunting, thus increasing the current-carrying capacity of the DC charging socket. Furthermore, the connectors increase the total surface area of ​​the cables connected to the connectors, facilitating heat dissipation and reducing cable overheating. Attached Figure Description

[0023] Figure 1 This is a perspective view of the DC charging dock provided in an embodiment of this utility model.

[0024] Figure 2 This is a side view of the DC charging dock provided in an embodiment of the present invention.

[0025] Figure 3 This is one of the partial structural schematic diagrams of the DC charging dock provided in this embodiment of the utility model.

[0026] Figure 4 This is the second partial structural schematic diagram of the DC charging dock provided in this embodiment of the utility model.

[0027] Figure 5 This is a front view of the DC charging dock provided in this embodiment of the utility model.

[0028] Figure 6 yes Figure 5 Cross-sectional view of the DC charging dock at point AA.

[0029] Figure 7 yes Figure 6 A magnified view of a section at point I.

[0030] Figure 8 yes Figure 5 Cross-sectional view of the DC charging dock at BB.

[0031] Figure label:

[0032] 110. Housing; 111. Mounting cavity; 112. Connecting cavity; 1121. First sub-cavity; 1122. Second sub-cavity; 113. Connecting port; 114. Partition plate; 115. First limiting block; 116. Assembly column; 1161. Assembly hole; 117. Second screw; 118. Second limiting block;

[0033] 120. Terminal assembly; 1201. First terminal assembly; 1202. Second terminal assembly; 121. Connector; 122. Connector; 123. Connecting plane; 124. First connecting hole; 125. First screw;

[0034] 130. Connecting component; 131. First connecting component; 1311. First connecting part; 1312. First bending part; 1313. First wiring part; 132. Second connecting component; 1321. Second connecting part; 1322. Second bending part; 1323. Second wiring part; 133. Second connecting hole;

[0035] 200, cable; X, first direction; Y, second direction; Z, third direction. Detailed Implementation

[0036] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0037] In the description of the embodiments of this utility model, the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and 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. Therefore, they should not be construed as limitations on the embodiments of this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0038] In the description of the embodiments of this utility model, unless otherwise expressly specified and limited, the terms "connected" and "linked" should be interpreted broadly. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model according to the specific circumstances.

[0039] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above 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 one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0040] like Figure 1 As shown, a DC charging dock according to an embodiment of the present invention includes a housing 110, a terminal assembly 120, and a connector 130.

[0041] Specifically, the housing 110 has an interconnected mounting cavity 111 and a connecting cavity 112. The housing 110 also has a connecting port 113, which connects the connecting cavity 112 to the outside of the housing 110. One end of the terminal assembly 120 is located in the mounting cavity 111, and the other end is located in the connecting cavity 112. A connector 130 passes through the connecting port 113. One end of the connector 130 is located in the connecting cavity 112 and connected to the terminal assembly 120. The connector 130 can be detachably connected to the terminal assembly 120 using screws or other fasteners. The other end of the connector 130 is located outside the connecting cavity 112, i.e., outside the housing 110. The end of the connector 130 located outside the connecting cavity 112 has at least two connection points for connecting to a cable 200. The connection points can be through holes. One end of the cable 200 is connected to the connection point using bolts or other fasteners, and the other end is connected to a power source.

[0042] Thus, the terminal assembly 120 is connected to the cable 200 via the connector 130, and then connected to the vehicle battery via the cable 200. The connector 130 has at least two terminals at its outer end, allowing at least two cables 200 to be connected in parallel simultaneously on one connector 130 for current sharing, improving the current-carrying capacity of the DC charging socket. This also increases the total surface area of ​​the cables 200 connected to the connector 130, facilitating heat dissipation and reducing the heat generated by the cables 200. Furthermore, the terminal assembly 120 connects at least two cables 200 in parallel via the connector 130, with the connector 130's outer end connected to the cable 200, facilitating cable connection and preventing the housing 110 from becoming excessively large.

[0043] According to the DC charging dock of this utility model embodiment, the terminal assembly 120 is connected to the cable 200 through the connector 130, and the connector 130 is provided with at least two wiring positions. The connector 130 can connect at least two cables 200 in parallel at the same time to perform current shunting, improve the current carrying capacity of the DC charging dock, and increase the total surface area of ​​the cables 200 connected to the connector 130, which facilitates heat dissipation and reduces the heat generation of the cables 200.

[0044] According to some embodiments of this utility model, the terminal assembly 120 includes a plug 121 and a connector 122. The plug 121 is located within the mounting cavity 111 and is used to connect to a vehicle charging gun. The plug 121 can be a double-cage spring terminal. One end of the plug 121 abuts against one end of the connector 122 and is detachably connected. The other end of the connector 122 is located within the connecting cavity 112 and is connected to the wiring component 130. Figure 6 As shown, the terminal assembly 120 also includes a first screw 125. One end face of the connector 121 abuts against one end face of the connector 122 to increase the contact area between the connector 121 and the connector 122 and reduce the frictional force between them in the axial direction. The connector 121 and the connector 122 are detachably connected by the first screw 125 to facilitate the replacement of the connector 121 in the future, thereby improving the service life of the DC charging socket.

[0045] According to some embodiments of this utility model, there are two terminal assemblies 120, namely a first terminal assembly 1201 and a second terminal assembly 1202, and two connectors 130, which are spaced apart, namely a first connector 131 and a second connector 132. One of the first terminal assembly 1201 and the second terminal assembly 1202 is connected to the positive terminal of the vehicle battery, and the other is connected to the negative terminal of the vehicle battery. The first connector 131 is connected to the first terminal assembly 1201, and the second connector 132 is connected to the second terminal assembly 1202.

[0046] The first connector 131 includes a first connecting portion 1311 and a first wiring portion 1313, wherein the first connecting portion 1311 is connected to the first terminal assembly 1201. For example, as Figure 4As shown, the first terminal assembly 1201 has a first connecting hole 124, and the first connecting portion 1311 has a second connecting hole 133. The first connecting hole 124 is a threaded hole, and a second screw 117 is inserted into the first connecting hole 124 and the second connecting hole 133 to connect the first terminal assembly 1201 and the first connecting portion 1311. The wiring positions of the first connector 131 are located on the first wiring portion 1313, and the wiring positions are distributed along the extension direction of the first wiring portion 1313. The extension direction of the first wiring portion 1313 is different from the extension direction of the first connecting portion 1311, so as to make full use of the space in other directions outside the housing 110 and avoid the first connector 131 being too long in a single direction.

[0047] The second connector 132 includes a second connecting portion 1321 and a second connecting portion 1323, wherein the second connecting portion 1321 is connected to the second terminal assembly 1202. For example, as Figure 4 As shown, the second terminal assembly 1202 has a first connecting hole 124, and the second connecting portion 1321 has a second connecting hole 133. The first connecting hole 124 is a threaded hole, and a second screw 117 passes through the first connecting hole 124 and the second connecting hole 133 to connect the second terminal assembly 1202 and the second connecting portion 1321. The wiring positions of the second connector 132 are located on the second wiring portion 1323, and the wiring positions are distributed along the extension direction of the second wiring portion 1323. The extension direction of the second wiring portion 1323 is different from the extension direction of the second connecting portion 1321, so as to make full use of the space outside the housing 110 and avoid the second connector 132 from being too long in a single direction. Figure 4 As shown, the first connecting portion 1311 and the second connecting portion 1321 both extend along the first direction X, and the first wiring portion 1313 and the second wiring portion 1323 both extend along the second direction Y, which is perpendicular to the first direction X. The first terminal assembly 1201 and the second terminal assembly 1202 are both generally cylindrical, with the axis of the first terminal assembly 1201 extending along the first direction X, and the axis of the second terminal assembly 1202 also extending along the first direction X.

[0048] According to some embodiments of this utility model, a connecting plane 123 is provided on the peripheral wall of the terminal assembly 120. The connecting plane 123 is in contact with the connector 130 to increase the contact area between the terminal assembly 120 and the connector 130 and improve the connection stability. Specifically, as shown... Figure 4As shown, the connector 122 of the first terminal assembly 1201 has a connecting plane 123 on its peripheral wall, and a first connecting hole 124 on the connecting plane 123; the first connecting part 1311 is flat and has a second connecting hole 133. The first connecting part 1311 overlaps the connecting plane 123 of the first terminal assembly 1201 and is fixedly connected by a second screw 117. The connector 122 of the second terminal assembly 1202 has a connecting plane 123 on its peripheral wall, and a first connecting hole 124 on the connecting plane 123; the second connecting part 1321 is flat and has a second connecting hole 133. The second connecting part 1321 overlaps the connecting plane 123 of the second terminal assembly 1202 and is fixedly connected by a second screw 117.

[0049] like Figure 1 and Figure 2 As shown, according to some embodiments of the present invention, the first connector 131 further includes a first bent portion 1312. The first connecting portion 1311, the first bent portion 1312, and the first connector 1313 are connected in sequence. The first bent portion 1312 is bent, so that the first connector 1313 and the first connecting portion 1311 are located on different planes. The second connector 132 further includes a second bent portion 1322. The second connecting portion 1321, the second bent portion 1322, and the second connector 1323 are connected in sequence. The second bent portion 1322 is bent, so that the second connector 1323 and the second connecting portion 1321 are located on different planes. This arrangement allows for clearance and facilitates observation and alignment of the connection port 113 during the assembly of the first connector 131 and the second connector 132. The surfaces of the first bend 1312 and the second bend 1322 are respectively provided with insulating layers to provide protection, prevent breakdown between the first connector 131 and the second connector 132, and insulate the first connector 131 and the second connector 132 from other surrounding parts, thereby improving safety.

[0050] According to some embodiments of this utility model, the bending direction of the first bending portion 1312 is opposite to the bending direction of the second bending portion 1322, so that the first wiring portion 1313 and the second wiring portion 1323 are far apart, thereby improving safety and making the cables 200 connected to the first wiring portion 1313 and the cables 200 connected to the second wiring portion 1323 far apart, so as to facilitate heat dissipation. Figure 2 and Figure 4As shown, the end of the first bending portion 1312 connected to the first connecting portion 1311 extends along the first direction X, and the end of the first bending portion 1312 connected to the first wiring portion 1313 bends toward the third direction Z, which is perpendicular to both the first direction X and the second direction Y; the end of the second bending portion 1322 connected to the second connecting portion 1321 extends along the first direction X, and the end of the second bending portion 1322 connected to the second wiring portion 1323 bends toward the third direction Z and away from the side of the first bending portion 1312, so that the first wiring portion 1313 and the second wiring portion 1323 are far apart from each other.

[0051] like Figure 3 and Figure 8 As shown, according to some embodiments of the present invention, a partition 114 is provided inside the connecting cavity 112, which divides the connecting cavity 112 into a first sub-cavity 1121 and a second sub-cavity 1122. The first sub-cavity 1121 and the second sub-cavity 1122 are respectively connected to the mounting cavity 111. One end of the first terminal assembly 1201 connected to the first connector 131 is located in the first sub-cavity 1121, and one end of the second terminal assembly 1202 connected to the second connector 132 is located in the second sub-cavity 1122, so as to meet the electrical clearance requirements and creepage distance and ensure safety.

[0052] like Figure 3 and Figure 8 As shown, according to some embodiments of the present invention, at least one first limiting block 115 is provided in the connecting cavity 112. One side of the first limiting block 115 is connected to the inner wall of the connecting cavity 112, and the opposite side forms a guide surface. During the assembly of the connector 130, the connector 130 can move along the guide surface to limit the connector 130, so that the connector 130 and the terminal assembly 120 can be smoothly aligned and connected. Specifically, as shown... Figure 8As shown, the first sub-cavity 1121 and the second sub-cavity 1122 are distributed along the second direction Y. At least one first limiting block 115 is provided on each of the two side walls of the connecting cavity 112 located in the second direction Y. The first limiting block 115 located in the first sub-cavity 1121 can limit the first connecting part 1311 in the second direction Y, and the first limiting block 115 located in the second sub-cavity 1122 can limit the second connecting part 1321 in the second direction Y, facilitating the installation of the first connector 131 and the second connector 132. A partition 114 is located on one side of the first sub-cavity 1121 and on one side of the second sub-cavity 1122, respectively, and is provided with a second limiting block 118. In the first sub-cavity 1121, the second limiting block 118 is positioned opposite to the first limiting block 115; in the second sub-cavity 1122, the second limiting block 118 is positioned opposite to the first limiting block 115, further defining the positions of the first connecting part 1311 and the second connecting part 1321. During the assembly of the DC charging base, the first terminal assembly 1201 and the second terminal assembly 1202 are respectively installed and fixed inside the housing 110, thereby forming an installation groove between the connecting plane 123, the first limiting block 115, and the second limiting block 118. The first connecting part 1311 is installed by sliding along the installation groove in the first sub-cavity 1121, and the second connecting part 1321 is installed by sliding along the installation groove in the second sub-cavity 1122. In some embodiments, the first limiting block 115 and the second limiting block 118 in the first sub-cavity 1121 and the first limiting block 115 and the second limiting block 118 in the second sub-cavity 1122 are arranged far apart from each other in the third direction Z, so that the first connector 131 and the second connector 132 are staggered in the third direction Z, so that the cross-section of the first connector 131 and the second connector 132 can be set to be larger, thereby improving the current carrying capacity of the first connector 131 and the second connector 132.

[0053] like Figure 1 As shown, according to some embodiments of the present invention, the outer side of the housing 110 is provided with an assembly post 116, and the assembly post 116 is provided with an assembly hole 1161. The assembly hole 1161 communicates with the connecting cavity 112. The terminal assembly 120 is provided with a first connecting hole 124, and the connector 130 is provided with a second connecting hole 133. The central axis of the assembly hole 1161 is coaxial with the first connecting hole 124 and the second connecting hole 133, so as to facilitate the connection between the connector 130 and the terminal assembly 120, and the volume of the housing 110 can be made smaller, reducing the volume of the DC charging socket. Specifically, as shown... Figure 6 and Figure 7As shown, the housing 110 is provided with two mounting posts 116. One mounting post 116 has a mounting hole 1161 communicating with the first sub-cavity 1121, and the other mounting post 116 has a mounting hole 1161 communicating with the second sub-cavity 1122. The central axis of the mounting hole 1161 is coaxial with the first connecting hole 124 and the second connecting hole 133, so that the first connecting hole 124 and the second connecting hole 133 can be observed through the mounting hole 1161 during assembly, for positioning the terminal assembly 120 and the connector 130. After the terminal assembly 120 and the connector 130 are positioned, the second screw 117 can be installed through the mounting hole 1161 to fix the terminal assembly 120 and the connector 130. It is understood that, for safety, the head of the second screw 117 is lower than the opening of the mounting hole at the end furthest from the connector 130, and the opening of the mounting hole at the end furthest from the connector 130 can be sealed with an insulating material.

[0054] In summary, this utility model embodiment provides a DC charging dock. The terminal assembly 120 is connected to a cable 200 via a connector 130, and then connected to a vehicle battery via the cable 200, making the connection between the DC charging dock and the vehicle battery more flexible. The connector 130 has at least two terminals, allowing at least two cables 200 to be connected in parallel simultaneously for current sharing. This also increases the total surface area of ​​the cables 200 connected to the connector 130, facilitating heat dissipation and reducing the heat generated by the cables 200.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate this utility model and are not intended to limit it. It should be pointed out that those skilled in the art can make several improvements and substitutions without departing from the technical principles of this utility model, and these improvements and substitutions should also be considered within the protection scope of this utility model.

Claims

1. A DC charging dock, characterized in that, include: The housing (110) has an installation cavity (111) and a connecting cavity (112) that are interconnected inside the housing (110). The housing (110) has a connecting port (113) that connects the connecting cavity (112) to the outside of the housing (110). Terminal assembly (120), one end of which is located in the mounting cavity (111) and the other end is located in the connection cavity (112); A connector (130) is provided through the connection port (113). One end of the connector (130) is located inside the connection cavity (112) and connected to the terminal assembly (120). The other end is located outside the connection cavity (112) and is provided with at least two wiring positions for connecting to a cable (200).

2. The DC charging dock according to claim 1, characterized in that, There are two terminal assemblies (120), namely a first terminal assembly (1201) and a second terminal assembly (1202), and there are two connectors (130), namely a first connector (131) and a second connector (132). The first connector (131) is connected to the first terminal assembly (1201), and the second connector (132) is connected to the second terminal assembly (1202). The first connector (131) includes a first connecting part (1311) and a first wiring part (1313). The first connecting part (1311) is connected to the first terminal assembly (1201), and the wiring position of the first connector (131) is located on the first wiring part (1313). The second connector (132) includes a second connecting part (1321) and a second wiring part (1323). The second connecting part (1321) is connected to the second terminal assembly (1202), and the wiring position of the second connector (132) is located on the second wiring part (1323).

3. The DC charging dock according to claim 2, characterized in that, The first connector (131) further includes a first bend (1312), the first connecting part (1311), the first bend (1312) and the first connector (1313) are connected in sequence, the first bend (1312) is bent, so that the first connector (1313) and the first connecting part (1311) are located on different planes; The second connector (132) further includes a second bend (1322), and the second connecting part (1321), the second bend (1322) and the second connector (1323) are connected in sequence. The second bend (1322) is bent, so that the second connector (1323) and the second connecting part (1321) are located on different planes.

4. The DC charging dock according to claim 3, characterized in that, The surfaces of the first bent portion (1312) and the second bent portion (1322) are respectively provided with an insulating layer.

5. The DC charging dock according to claim 3, characterized in that, The bending direction of the first bending portion (1312) is opposite to that of the second bending portion (1322), so that the first wiring portion (1313) and the second wiring portion (1323) are far apart from each other.

6. The DC charging dock according to claim 2, characterized in that, The connecting cavity (112) is provided with a partition (114), which divides the connecting cavity (112) into a first sub-cavity (1121) and a second sub-cavity (1122). The first sub-cavity (1121) and the second sub-cavity (1122) are respectively connected to the mounting cavity (111). One end of the first terminal assembly (1201) connected to the first connector (131) is located in the first sub-cavity (1121), and one end of the second terminal assembly (1202) connected to the second connector (132) is located in the second sub-cavity (1122).

7. The DC charging dock according to claim 1, characterized in that, The terminal assembly (120) includes a plug (121) and a connector (122). The plug (121) is located in the mounting cavity (111). One end of the plug (121) abuts against one end of the connector (122) and is detachably connected. The other end of the connector (122) is located inside the connection cavity (112) and is connected to the wiring component (130).

8. The DC charging dock according to claim 1, characterized in that, The terminal assembly (120) has a connecting plane (123) on its peripheral wall, and the connecting plane (123) is in contact with the connector (130).

9. The DC charging dock according to claim 1, characterized in that, The connecting cavity (112) is provided with at least one first limiting block (115). One side of the first limiting block (115) is connected to the inner wall of the connecting cavity (112), and the other side forms a guide surface. During the assembly of the connector (130), the connector (130) can move along the guide surface.

10. The DC charging dock according to claim 1, characterized in that, The housing (110) is provided with an assembly post (116), and the assembly post (116) is provided with an assembly hole (1161). The assembly hole (1161) communicates with the connecting cavity (112). The terminal assembly (120) is provided with a first connecting hole (124), and the connector (130) is provided with a second connecting hole (133). The central axis of the assembly hole (1161) is coaxial with the first connecting hole (124) and the second connecting hole (133).

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