Automobile charging socket and automobile charging socket assembly

Abstract

The utility model belongs to the field of connectors suitable for charging electric vehicles, and particularly relates to an automobile charging socket and an automobile charging socket assembly. The utility model provides an automobile charging socket which has relatively high charging power and is easy to install, the automobile charging socket comprises a direct current power supply anode power contact element and a direct current power supply cathode power contact element, and each power contact element is provided with at least two installation parts which are used for installing different leads or conducting bars and can be conductively connected with the leads or conducting bars. The utility model also provides an automobile charging socket assembly using the automobile charging socket. A thick wire or a thick conducting bar in the prior art is replaced by at least two thin wires or at least two thin conducting bars, and each wire and each conducting bar are convenient to bend, so that the wires and the conducting bars are convenient to assemble at the same time, and the automobile has high charging power.

Description

Technical Field

[0001] The utility model belongs to the field of connectors suitable for charging electric vehicles, and in particular relates to a vehicle charging socket and a vehicle charging socket assembly. Background Art

[0002] As the number of electric vehicles increases, standards for them are also evolving. Standards such as the Chinese National Standard, the American Standard, and the European Standard stipulate that electric vehicles can have higher charging power, requiring the front-end power contacts of the socket to have only one positive DC power contact and one negative DC power contact. For example, the "Connection Devices for Conductive Charging of Electric Vehicles - Part 3: DC Charging Interface (GB / T20234.3-2023)" explicitly stipulates that the socket must have only one positive DC power contact and one negative DC power contact.

[0003] Currently, in existing technology, when the charging power of an electric vehicle is relatively low, a wire or a conductive bar can be installed on each power contact, allowing the charging gun to charge the electric vehicle when it is plugged into a socket. Furthermore, since the charging power of an electric vehicle is relatively low, the current required to flow through the wire or conductive bar is relatively small, so a wire or conductive bar with a smaller flow area can be used. In this case, the wire is thinner and has a smaller bending radius, making it easier for workers to install the wire inside the vehicle body. Similarly, the conductive bar is thinner and has a smaller bending radius, also making it easier for workers to install the conductive bar inside the vehicle body.

[0004] However, when charging an electric vehicle at a high power level, the current flowing through the wires or busbars is high, necessitating the use of wires or busbars with a large flow area. This complicates wire assembly due to the thicker wires and larger bending radius, while the space reserved for them within the vehicle body is small. Similarly, the busbars are more difficult to assemble due to their thicker bending radius and smaller space within the vehicle body. Furthermore, thicker wires and busbars are more challenging to manufacture.

[0005] From another perspective, when the wires or conductive bars are easy to install in the vehicle body, the flow area of ​​the wires is smaller, resulting in a lower charging power for the electric vehicle.

[0006] Therefore, in the prior art, the following two objectives cannot be met simultaneously: (1) the wires or conductive bars are easy to process and manufacture and easy to assemble in the vehicle body; and (2) the charging power of the electric vehicle is relatively large. Utility Model Content

[0007] The purpose of the utility model is to provide a car charging socket to solve the technical problem in the prior art that the wires cannot be easily assembled and the charging power of the car cannot be high at the same time.

[0008] The present invention also aims to provide a vehicle charging socket assembly to solve the same technical problem as above.

[0009] To achieve the above objectives, the technical solution of the car charging socket provided by the present invention is:

[0010] A car charging socket includes a DC power supply positive pole power contact and a DC power supply negative pole power contact. Each power contact is provided with at least two mounting portions for mounting different wires or conductive bars and capable of conductively connecting to the wires or conductive bars.

[0011] Furthermore, for any power contact, each mounting portion is a mounting plane arranged on the terminal of the power contact, and the mounting plane is provided with a through-hole penetrating the terminal, and the through-hole is used for fasteners to fix the wire or conductive bar to the mounting plane.

[0012] Furthermore, both ends of the same through hole have mounting planes, and the two mounting planes constitute independent mounting parts respectively.

[0013] Furthermore, the housing of the car charging socket is provided with an operating hole arranged opposite to the through hole, so as to facilitate installation of the fastener from outside the housing.

[0014] Furthermore, each operating hole is provided with a sealing cover for sealing the operating hole, and the sealing cover is detachably connected to the housing.

[0015] Furthermore, for any power contact, the end of the power contact has a connection terminal, each mounting portion is a welding portion for welding to a wire or a conductive bar, and each welding portion is located on the same side of the connection terminal.

[0016] The vehicle charging socket provided by the present invention has the following beneficial effects: the present invention is an invention with modified elements. Compared to the prior art technical solution in which each power contact has only a mounting portion for mounting one wire or one conductive bar, the present technical solution changes the number of mounting portions, increasing the number of mounting portions on each power contact from one to at least two. When the vehicle charging socket of the present technical solution is applied to a vehicle, on the one hand, compared to the prior art technical solution in which each power contact only has a relatively thick wire or a relatively thick conductive bar, the installation of at least two wires or two conductive bars on each power contact ensures a flow area to meet a higher charging power. At the same time, each wire does not need to be too thick, and each conductive bar does not need to be too thick, making it easier to bend and assemble. On the other hand, compared to the prior art technical solution in which each power contact only has a relatively thin wire or a relatively thin conductive bar, the installation of at least two wires or two conductive bars on each power contact increases the flow area, thereby increasing the charging power.

[0017] To achieve the above objectives, the technical solution of the automobile charging socket assembly provided by the present invention is:

[0018] A car charging socket assembly includes a DC power supply positive pole power contact and a DC power supply negative pole power contact. Each power contact is provided with at least two mounting portions, each mounting portion is mounted with a wire and conductively connected to the wire, or each mounting portion is mounted with a conductive bar and conductively connected to the conductive bar.

[0019] Furthermore, for any power contact, each mounting portion is a mounting plane arranged on the terminal of the power contact, and the mounting plane is provided with a through-hole and a fastener penetrating the terminal, and the fastener passes through the through-hole and fixes the wire or conductive bar to the mounting plane.

[0020] Furthermore, both ends of the same through-hole have mounting planes, and the two mounting planes constitute independent mounting parts respectively. The fasteners pass through the through-holes and fix the two wires or conductive bars located on both sides of the through-holes to the two mounting planes respectively.

[0021] Furthermore, the fasteners are bolts, and each wire or conductive bar is fixedly mounted on the mounting plane by means of bolts and matching nuts.

[0022] Furthermore, the housing of the automobile charging socket assembly is provided with multiple groups of operating holes, each group of operating holes includes a first operating hole for exposing a bolt head and a second operating hole for exposing a nut, so as to facilitate screwing the bolt head from outside the housing; or, each group of operating holes is used to expose one of the bolt head and the nut, and the other of the bolt head and the nut is fixed in the housing to facilitate screwing the bolt head or the nut from outside the housing.

[0023] Furthermore, each operating hole is provided with a sealing cover for sealing the operating hole, and the sealing cover is detachably connected to the housing.

[0024] Furthermore, when wires are installed on the mounting portion, each wire includes a wire body and a transfer bar, the wire body is fixedly connected to the transfer bar, and the transfer bar is fixedly connected to the wire via a fastener.

[0025] Furthermore, for any power contact, the end of the power contact has a connection terminal, and each wire or conductive bar is welded to the same side of the connection terminal.

[0026] The vehicle charging socket assembly provided by the present invention has the following beneficial effects: the present invention is an invention with modified elements. Compared to the prior art technical solution in which each power contact is equipped with only one wire, in this technical solution, when using wires to transmit current, the number of wires is changed, from one wire to at least two wires installed on each power contact; when using conductive bars to transmit current, the number of conductive bars installed on each power contact is increased from one to at least two. When the vehicle charging socket assembly of this technical solution is applied to a vehicle, on the one hand, compared to the prior art technical solution in which each power contact is equipped with only one thicker wire or one thicker conductive bar, the installation of at least two wires or two conductive bars on each power contact ensures a flow area to meet a larger charging power. At the same time, each wire does not need to be too thick, and each conductive bar does not need to be too thick, making it easier to bend and assemble. On the other hand, compared to the prior art technical solution in which each power contact is equipped with only one thinner wire or one thinner conductive bar, the installation of at least two wires or two conductive bars on each power contact increases the flow area, thereby increasing the charging power. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a structural diagram of a specific embodiment 1 of the automobile charging socket assembly of the utility model;

[0028] Figure 2 for Figure 1 Structural explosion diagram;

[0029] Figure 3 for Figure 2 Schematic diagram of the structure of medium power contact;

[0030] Figure 4 for Figure 2 Schematic diagram of the structure of medium power contact and wire before assembly;

[0031] Figure 5 for Figure 2 Schematic diagram of the structure after the medium power contact and wire are assembled;

[0032] Figure 6 This is a schematic structural diagram of the power contact in the specific embodiment 2 of the automobile charging socket assembly of the present utility model.

[0033] Description of reference numerals:

[0034] 1. Car charging socket; 11. Protective cover; 12. Power contact; 121. Perforation; 122. First mounting portion; 123. Second mounting portion; 124. Third mounting portion; 13. Housing; 131. Plug housing; 132. Branch housing; 133. Cable sealing housing; 14. Nut; 15. Bolt; 16. Sealing cover; 2. Wire; 21. Wire body; 22. Adapter bar. DETAILED DESCRIPTION

[0035] To address the issues raised in the prior art, the core inventive concept of this utility model is to replace the existing single thick wire or thick conductive bar with at least two thinner wires or two thinner conductive bars. Each wire need not be excessively thick, and each conductive bar need not be excessively thick. This allows each wire and each conductive bar to be easily bent, thereby facilitating assembly of the wires and conductive bars and providing greater vehicle charging power. The following describes this utility model in further detail with reference to the following embodiments.

[0036] Specific embodiment 1 of the automobile charging socket assembly provided by the utility model:

[0037] like Figure 1-5 As shown, the car charging socket assembly includes a car charging socket 1 and a wire installed on the car charging socket 1. During the manufacturing process, the socket manufacturer can produce the car charging socket 1 separately, and the car manufacturer can install the car charging socket 1 on the car, and the car manufacturer can also install the wire on the car charging socket 1. Of course, the socket manufacturer can also produce the car charging socket 1 and install the wire 2 on the car charging socket 1 to form the car charging socket assembly, and the car manufacturer can install the car charging socket assembly on the car. Figure 1-5 As shown, the housing 13 of the vehicle charging socket 1 is divided into three parts: a plug housing 131, a branch housing 132, and a cable sealing housing 133. A protective cover 11 is provided on the plug housing 131 to protect the contacts. Plug housing 131 is manufactured according to national standards and is mounted with a DC power supply positive and a DC power supply negative power contact. Each power contact 12 has at least two mounting portions for receiving and electrically connecting different wires 2. When installing wires into the vehicle charging socket 1, each wire 2 needs to be installed in a different mounting portion. After installation, each power contact 12 is mounted with at least two wires 2.

[0038] The housing 13 is used to protect the joint between the power contact 12 and the wire 2. In the present invention, since the number of wires 2 installed on each power contact 12 has increased, the size of the branching housing 132 has also been adaptively adjusted, and the cable sealing housing 133 has also been adaptively increased with a sealing hole component for sealing with the wire. Figure 1-2In the embodiment, since there are four wires 2, the number of sealing hole assemblies is changed from two in the prior art to four (ie, the number of sealing hole assemblies is the same as the number of wires 2).

[0039] In different embodiments, such as Figure 1-5 As shown, two wires 2 can be installed on each power contact 12, that is, each power contact 12 is provided with two mounting portions; or, referring to Figure 6 As shown, each power contact 12 can be installed with three wires 2, that is, each power contact 12 is provided with three mounting portions; alternatively, each power contact 12 can be installed with four, five, or more wires 2. In general, the number and specifications of the wires 2 installed on each power contact 12 are the same, that is, the total current carrying capacity of the wires 2 installed on each power contact 12 is the same; if one wishes to avoid having the same number of wires 2 on two power contacts 12, the number of wires 2 installed on the two power contacts 12 can be different (but each power contact 12 still has at least two wires 2 installed). For example, one power contact 12 can be installed with three wires 2, and the other power contact 12 can be installed with two wires 2. In this case, the total current carrying capacity of all the wires 2 installed on the two power contacts 12 is different. The minimum value of the total current carrying capacity of all the wires 2 installed on each power contact 12 is the key factor limiting the maximum charging power of the vehicle.

[0040] Compared with the technical solution in the prior art in which each power contact 12 is only installed with one wire, in this embodiment, from one perspective, the number of mounting parts is changed, and the number of mounting parts on each power contact 12 is changed from one to at least two; from another perspective, the number of wires is changed, and the number of wires installed on each power contact 12 is changed from one to at least two.

[0041] After the automobile charging socket assembly in this embodiment is applied to the automobile, on the one hand, compared with the technical solution in the prior art in which only one thicker wire is installed on each power contact 12, installing at least two wires 2 on each power contact 12 can ensure the flow area to meet the larger charging power. At the same time, each wire 2 does not need to be too thick, so it is easy to bend and easy to assemble; on the other hand, compared with the technical solution in the prior art in which only one thinner wire 2 is installed on each power contact 12, installing at least two wires 2 on each power contact 12 can increase the flow area, thereby improving the charging power.

[0042] Reference Figure 1-5 As shown, in order to facilitate the staff of the automobile manufacturer to install the wire 2 on the power contact 12, several installation methods of the wire 2 and the power contact 12 are given below:

[0043] Method 1: Figure 1-5 As shown, for any power contact 12, each mounting portion is a mounting plane arranged on the terminal of the power contact 12, and each mounting plane is provided with a through-hole 121 penetrating the terminal. The through-hole 121 is used for passing a fastener that fixes the wire 2 to the mounting plane. The fastener is specifically a bolt 15. Each wire 2 is fixedly mounted on the power contact 12 by a bolt 15 and a nut 14.

[0044] Method 2: Reference Figure 1-5 As shown, for any power contact 12, each mounting portion is a mounting plane arranged on the terminal of the power contact 12, and each mounting plane is provided with a through-hole 121 penetrating the terminal. The through-hole 121 is used for passing a fastener that fixes the wire 2 to the mounting plane. The fastener is specifically a screw. Each wire 2 is fixedly mounted on the power contact 12 by the screw and two nuts installed at both ends of the screw.

[0045] Method 3: Reference Figure 1-5 As shown, for any power contact 12, each mounting portion is a mounting plane arranged on the terminal of the power contact 12, and each mounting plane is configured with a threaded hole arranged on the terminal, and each wire 2 is fixedly mounted on the power contact 12 by screws and threaded holes.

[0046] Compared to a technical solution in which the wire 2 is fixedly connected to the power contact 12 by crimping, riveting, or welding, automobile manufacturer personnel can conveniently install the wire 2 on the power contact 12 using bolts 15, screws, or screws, without the need for additional crimping or welding equipment. The bolts 15, screws, screws, or rivets that pass through the through-holes 121 constitute fasteners.

[0047] like Figure 1-5 As shown, in order to reduce the space occupied by the automobile charging socket assembly, as a specific embodiment, for any power contact 12 with a through-hole 121, the wires 2 installed on the same power contact 12 include at least one group of wires installed on both sides of the terminal block through the same bolt 15 or the same screw. Specifically, both ends of the same through-hole 121 have mounting planes, and the two mounting planes respectively constitute an independent first mounting portion 122 and a second mounting portion 123, and the first mounting portion 122 and the second mounting portion 123 share a through-hole 121. Providing mounting portions on both sides of the terminal block can effectively reduce the volume of the terminal block, thereby reducing the space occupied by the automobile charging socket assembly. However, in other specific embodiments, referring to Figure 1-5As shown, at least two through-holes 121 may be provided on each terminal block, and each wire 2 may be installed on the corresponding power contact 12 through a different through-hole 121; alternatively, a rivet may be passed through the through-hole 121 and the two wires 2 may be riveted to the first mounting portion 122 and the second mounting portion 123, respectively.

[0048] like Figure 1-5 As shown, in order to facilitate the installation of the wire 2, an operating hole is provided on the housing 13 of the vehicle charging socket 1, which is arranged opposite to the through hole. For the three installation methods using bolts 15, screws or screws, the arrangement of the operating hole is as follows:

[0049] Regarding the installation method using bolts 15: in different specific embodiments, the shell 13 may be provided with an operating hole for exposing the bolt head so that the bolt head can be screwed from the outside of the shell 13, each operating hole constitutes a group of operating holes, and the nut 14 is fixed in the shell 13 (the shell 13 has a hexagonal hole, and the nut 14 is installed in the hexagonal hole); or, the shell 13 is provided with an operating hole for exposing the nut 14 so that the nut 14 can be screwed from the outside of the shell 13, each operating hole constitutes a group of operating holes, and the bolt head is fixed in the shell 13 (the shell 13 has a hexagonal hole, and the bolt head is installed in the hexagonal hole); or, the shell 13 is provided with operating holes for exposing the bolt head and for exposing the nut 14 at the same time, and the operating holes for exposing the bolt head and for exposing the nut 14 on the same bolt head together constitute a group of operating holes.

[0050] For the installation method using screws: the housing 13 of the vehicle charging socket 1 is provided with an operating hole for exposing a nut so as to facilitate screwing the corresponding nut from outside the housing 13 .

[0051] Regarding the installation method using screws: the housing 13 of the car charging socket 1 is provided with an operating hole for exposing the screw head so as to facilitate screwing the screw from outside the housing 13 .

[0052] Reference Figure 1-5 As shown, in different specific embodiments, the operation holes can be short holes, each corresponding to a bolt head, nut 14, or screw head; or the operation holes can be long holes, each corresponding to at least two bolt heads, nuts 14, or screw heads; or the housing 13 can have both long and short operation holes. The operation holes can be used to conveniently secure the wire 2 to the terminal block using a bolt 15, a threaded rod, or a screw.

[0053] Each operating hole is also provided with a corresponding sealing structure to seal the bolt head, nut 14 or screw head, so as to prevent the charged bolt head, nut 14 or screw head from sucking dust into the housing 13 through the operating hole when charging the car.

[0054] Reference Figure 1-5 As shown, in order to facilitate the sealing of each operating hole, as a specific embodiment, each operating hole is provided with a sealing cover 16 for sealing the operating hole, and the sealing cover 16 is detachably connected to the housing 13. The car charging socket 1 comes with a detachable sealing cover 16. When installing the wire 2, each operating hole can be conveniently sealed by removing and installing the sealing cover 16.

[0055] However, in other specific embodiments, reference Figure 1-5 As shown, the car charging socket 1 may also not include the sealing cover 16. After installing the wire 2, the staff can use insulating tape to seal the operation hole.

[0056] When installing wire 2, you can follow the steps below:

[0057] Step S1, remove the sealing cover 16;

[0058] Step S2: Remove the corresponding bolts 15, screws, or bolts through the operating holes (if the vehicle charging socket 1 does not include the bolts 15, screws, or bolts, step S2 can be omitted, and the staff is required to prepare the bolts 15, screws, or bolts themselves);

[0059] Step S3: insert the wire 2 into the housing 13 and securely connect the wire 2 to the corresponding power contact 12 using a bolt 15, a screw or a screw;

[0060] Step S4: Install the sealing cover 16 on the housing 13 .

[0061] In different embodiments, reference Figure 1-5 As shown, when the wire body 21 of the wire 2 is relatively hard, the terminal of the wire 2 can be directly fixedly connected to the power contact 12 by means of bolts 15, screws or screws; when the terminal of the wire body 21 of the wire 2 is relatively soft, the wire 2 also includes a transfer bar 22, and the terminal of the wire body 21 is fixed to the transfer bar 22 by means of hot pressing or welding, and the transfer bar 22 is fixedly connected to the power contact 12 by means of bolts 15, screws or screws, thereby increasing the structural strength of the connection between the wire 2 and the power contact 12.

[0062] Specific embodiment 2 of the automobile charging socket assembly provided by the utility model:

[0063] The purpose of this embodiment is to provide a different vehicle charging socket assembly for vehicle charging.

[0064] The main difference between this embodiment and specific embodiment 1 is: Figure 1-5As shown, in the specific embodiment 1, in order to facilitate the installation of the wire 2, the car charging socket 1 includes a bolt 15, a screw or a screw; Figure 1-5 On the basis of Figure 6 As shown, in the car charging socket 1 of this embodiment, for any power contact 12, the end of the power contact 12 has a terminal, and each mounting portion is a welding portion for welding to the wire 2, and each welding portion is located on one side of the terminal, so that each wire 2 can be welded to one side of the terminal.

[0065] Specifically, if Figure 6 As shown, each power contact 12 has a first mounting portion 122, a second mounting portion 123, and a third mounting portion 124, each of which is used to be welded to a wire 2. It should be noted that due to the limitations of current welding processes, it is not possible to achieve a "soft-hard-soft" three-layer welding structure. Therefore, it is not possible to arrange two wires 2 on both sides of a power contact 12 by welding. Therefore, each wire 2 is welded on the same side of the power contact 12.

[0066] When installing wire 2, you can follow the steps below:

[0067] Step S1: Separate the plug housing 131 and the split housing 132 to expose the power contact 12 to the external environment;

[0068] Step S2: Pass the wire 2 through the sealing hole assembly on the cable sealing shell 133;

[0069] Step S3, welding the wire 2 to the power contact 12;

[0070] Step S4: Assemble the plug housing 131 and the branch housing 132 together.

[0071] Of course, in other specific embodiments, the power contact 12 can also be interference fit with the wire 2, or the power contact 12 can be crimped and connected to the wire 2... In the present utility model, there is no limit to the way the power contact 12 is assembled with the wire 2, as long as it can ensure that a single power contact 12 is fixedly electrically connected to at least two wires 2.

[0072] Specific embodiment 3 of the automobile charging socket assembly provided by the utility model:

[0073] The purpose of this embodiment is to provide a car charging socket assembly that uses conductive bars to replace wires.

[0074] The main difference between this embodiment and Specific Embodiment 1 and Specific Embodiment 2 is that, whereas in Specific Embodiment 1 or 2, the conductive structures are wires, in this embodiment, the conductive structures are conductive bars, which are mounted on and electrically connected to the mounting portion. Furthermore, each conductive bar does not need to be excessively thick, and each bar is easily bendable and easily assembled into the vehicle body. The conductive bars can be copper bars, aluminum bars, or other well-established structures in the prior art, and will not be further described here.

[0075] The specific embodiment of the car charging socket provided by the utility model is as follows:

[0076] Reference Figure 1-6 As shown, in the present invention, the difference between the vehicle charging socket 1 and the vehicle charging socket assembly is that the vehicle charging socket 1 does not include the wire 2, while the vehicle charging socket assembly includes the wire 2 and the vehicle charging socket 1. In other words, the vehicle charging socket 1 can be obtained by removing the wire 2 from the vehicle charging socket assembly.

[0077] The specific structure of the vehicle charging socket 1 in this embodiment is the same as the structure of any vehicle charging socket 1 in all specific implementation modes of the vehicle charging socket assembly of the present invention, and will not be repeated here.

[0078] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments without inventive effort, or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. 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 car charging socket, characterized in that: It comprises a DC power supply positive pole power contact piece and a DC power supply negative pole power contact piece, and each power contact piece (12) is provided with at least two mounting portions for mounting different wires (2) or conductive bars and capable of conductive connection with the wires (2) or conductive bars.

2. The vehicle charging socket according to claim 1, wherein: For any power contact piece (12), each mounting portion is a mounting plane arranged on a terminal of the power contact piece (12), the mounting plane being provided with a through hole (121) penetrating the terminal, the through hole (121) being used for passing a fastener for fixing a wire (2) or a conductive bar to the mounting plane.

3. The vehicle charging socket according to claim 2, wherein: Both ends of the same through hole (121) have mounting planes, and the two mounting planes respectively constitute independent mounting parts.

4. The vehicle charging socket according to claim 2 or 3, characterized in that: The housing (13) of the automobile charging socket (1) is provided with an operating hole arranged opposite to the through hole (121) to facilitate installation of a fastener from outside the housing (13).

5. The vehicle charging socket according to claim 4, characterized in that: Each operating hole is provided with a sealing cover (16) for sealing the operating hole, and the sealing cover (16) is detachably connected to the housing (13).

6. The vehicle charging socket according to claim 1, wherein: For any power contact piece (12), the end of the power contact piece (12) has a connection terminal, each mounting portion is a welding portion for welding to a wire (2) or a conductive row, and each welding portion is located on the same side of the connection terminal.

7. A car charging socket assembly, characterized in that: It comprises a DC power supply positive pole power contact piece and a DC power supply negative pole power contact piece, each power contact piece (12) is provided with at least two mounting parts; each mounting part is mounted with a wire (2) and is conductively connected to the wire (2), or each mounting part is mounted with a conductive bar and is conductively connected to the conductive bar.

8. The vehicle charging socket assembly according to claim 7, wherein: For any power contact piece (12), each mounting portion is a mounting plane arranged on a terminal of the power contact piece (12), the mounting plane being provided with a through hole (121) penetrating the terminal and a fastener, the fastener passing through the through hole (121) and fixing the wire (2) or the conductive bar to the mounting plane.

9. The vehicle charging socket assembly according to claim 8, wherein: Both ends of the same through-hole (121) have mounting planes, and the two mounting planes respectively constitute independent mounting portions. The fasteners pass through the through-hole (121) and respectively fix the two wires (2) or conductive bars located on both sides of the through-hole (121) to the two mounting planes.

10. The vehicle charging socket assembly according to claim 8 or 9, characterized in that: The fasteners are bolts (15), and each conductor (2) or conductive bar is fixedly mounted on the mounting plane by means of the bolts (15) and matching nuts (14).

11. The vehicle charging socket assembly according to claim 10, wherein: A plurality of groups of operating holes are provided on the housing (13) of the automobile charging socket assembly, each group of operating holes includes a first operating hole for exposing a bolt head and a second operating hole for exposing a nut (14), so as to facilitate screwing the bolt head from outside the housing (13); or, each group of operating holes is used to expose one of the bolt head and the nut (14), and the other of the bolt head and the nut is fixed in the housing (13) to facilitate screwing the bolt head or the nut (14) from outside the housing (13).

12. The vehicle charging socket assembly according to claim 11, wherein: Each operating hole is provided with a sealing cover (16) for sealing the operating hole, and the sealing cover (16) is detachably connected to the housing (13).

13. The vehicle charging socket assembly according to claim 8 or 9, characterized in that: When the wires (2) are installed on the mounting portion, each wire (2) comprises a wire body (21) and a transfer row (22); the wire body is fixedly connected to the transfer row (22); and the transfer row (22) is fixedly connected to the wires (2) via a fastener.

14. The vehicle charging socket assembly according to claim 7, wherein: For any power contact piece (12), the end of the power contact piece (12) has a connection terminal, and each wire (2) or conductive row is welded to the same side of the connection terminal.

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