A wiring device and a car charging pile

Abstract

The utility model relates to a kind of wiring device and automobile charging pile, including copper bar (1), copper column (2) and female seat (3), copper bar (1) is provided with bus hole (11), the front end of copper column (2) is provided with threaded connection end (21), copper bar (1) is provided with the copper bar threaded hole (12) of adaptation with threaded connection end (21), female seat (3) is provided with wire hole (31) matched with copper column (2), female seat (3) is connected with copper bar (1) by at least one copper column (2).Compared with prior art, the utility model has the advantages that: the wiring mode is rigid connection, the stability and reliability are improved;Copper bar and copper column are directly screwed, then inserted with female seat through copper column, high safety, can pass large current, wiring complexity is low, convenient maintenance and overhaul;Current and power size can be changed by adjusting conductive contact area, more widely applied;Device overall structure is simple, space is optimized, better scalability.

Description

Technical Field

[0001] This utility model relates to the field of high and low voltage distribution cabinet manufacturing technology, and in particular to a wiring device and an automobile charging pile. Background Technology

[0002] With the global energy structure transformation and the deepening of environmental protection policies, the popularity of electric vehicles (EVs) has increased significantly. As a core supporting facility, the technological development of charging piles has attracted much attention. The wiring device of a charging pile is a key component connecting the charging equipment and the electric vehicle battery system, and its performance directly determines the charging efficiency, safety, and user experience.

[0003] In existing technologies, most mainstream charging pile wiring devices are based on cold-pressed terminal structures. The crimping method uses semi-automatic cold pressing, and its reliability depends heavily on the operator's skill. Poor crimping can easily lead to increased contact resistance, localized overheating, and, with prolonged use, may cause arcing or short-circuit risks, threatening charging safety. Furthermore, the installation process requires wire cutting, cold-pressing terminals, pre-insulation, and inserting the casing, impacting production efficiency. Additionally, in high-power fast charging scenarios, if the heat generated by high current transmission cannot be dissipated in time, the insulating materials used will age faster, potentially leading to thermal runaway and limiting charging efficiency.

[0004] The wiring method used in these charging pile wiring devices often results in numerous and chaotic wiring lines, with different functional lines intertwined. The installation of complex wiring consumes significant manpower and time, increasing installation costs. Operators may also make incorrect connections due to difficulties in identifying the lines, leading to the distribution cabinet malfunctioning. Troubleshooting complex wiring is difficult, and maintenance personnel struggle to quickly locate the fault. When repairing or replacing lines or components, the interlocking lines restrict operating space, increasing repair time and affecting the normal power supply. Over time, wiring connections can loosen, leading to increased contact resistance and overheating, potentially causing fires. Furthermore, aging or damaged insulation layers, without effective protection and isolation measures, can easily cause electric shock accidents. As power demand changes and equipment upgrades, the distribution cabinet may require additional wiring or equipment, but this wiring method lacks reasonable space for expansion. Expansion requires large-scale modifications to the existing wiring, increasing the difficulty and cost of modifications.

[0005] Therefore, the current charging pile wiring devices have problems such as insufficient connection reliability, limited high-power heat dissipation performance, and low production efficiency. Furthermore, their wiring is too complex, maintenance and repair are inconvenient, there are safety hazards after long-term use, and they lack scalability in the future.

[0006] To address the aforementioned issues, existing improvement solutions mostly focus on optimizing a single performance characteristic. For example, using precious metal materials to improve contact conductivity and thermal management. However, such designs often lead to increased costs or structural complexity, making it difficult to meet the needs of multiple scenarios. Summary of the Invention

[0007] The technical problem to be solved by this utility model is to provide a wiring device with high wiring reliability, low failure rate of high power conductivity, convenient installation and maintenance, and good future expandability, as well as a car charging pile including the wiring device.

[0008] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a wiring device, comprising at least a copper busbar, a copper post, and a female connector, wherein the copper busbar is provided with a bus hole, the front end of the copper post is provided with a threaded connection end, the copper busbar is provided with a copper busbar threaded hole adapted to the threaded connection end, the female connector is provided with a wire hole matching the copper post, and the female connector is connected to the copper busbar through at least one of the copper posts.

[0009] The beneficial effects of this plan are:

[0010] (1) By using “copper pillars and copper busbars” to connect the circuit between the external line and the motherboard instead of directly using wires or “wires and copper busbars”, the flexible connection is changed to a rigid connection, which improves the stability and reliability of the connection.

[0011] (2) The copper busbar and copper post are directly connected by threads. Compared with the connection of "copper busbar and wire" or direct connection with wire, there is no need to use cold-pressed terminals, nuts, screws or bolts, which reduces the use of parts. Therefore, there will be no short circuits or poor contact caused by the failure of these parts or materials or operator installation errors, which improves the safety of the wiring device, facilitates operator installation, and improves production efficiency.

[0012] (3) The copper busbar and the copper column are connected by a thread. The combination of the external thread and the internal thread increases the conductive contact area, which can carry a larger current and thus increase the charging power.

[0013] (4) After the copper busbar and copper column are threaded together, they can be directly plugged into the wire hole of the copper column and the female seat. Compared with the wire connection method that requires a certain installation method, the wiring complexity is reduced and the operator can easily maintain and repair it.

[0014] (5) The conductive contact area between the copper column and the copper busbar can be adjusted by the number of turns of the screw thread between the copper column and the copper busbar threaded hole. The current and power can be changed according to actual needs. Compared with the traditional connection method that cannot change the current and power, it has a wider range of applications and more flexible adjustment.

[0015] (6) The overall structure of the wiring device is simpler, the disassembly and assembly are quicker, and it is convenient for later maintenance and equipment addition and subtraction. The wiring device makes the space in the distribution cabinet more optimized. When expanding, there is no need to make large-scale changes to the existing lines. The difficulty and cost of the transformation are both lower, and the expandability is better.

[0016] Furthermore, the female connector is provided with isolation posts between the wire holes for isolating adjacent copper busbars, and the isolation posts are made of insulating material.

[0017] The beneficial effect of this solution is that when there are at least two different voltage or current requirements for the line to be connected on the female connector, the female connector will be provided with at least two different functional wire holes. The wire holes with different functions need to be connected to different copper busbars through copper posts. The isolation posts can isolate adjacent copper busbars, so that the creepage gap and creepage distance are controlled within the required safe range, and multiple copper busbars can be plugged and used.

[0018] Furthermore, at least two female seats are provided, and all of the female seats are connected to the copper busbars through the copper pillars.

[0019] The advantages of this solution are that the wiring device with multiple female connectors can meet more power supply needs, and the wire holes with the same function on different female connectors can be aggregated to the bus hole of the same copper bus through copper posts, and then connected to the external line through the bus hole, which improves the integration of the line, simplifies the operation, and reduces the complexity of the line and the difficulty of installation.

[0020] Furthermore, one of the female seats is connected to one of the copper busbars via two copper pillars.

[0021] The advantage of this solution is that, compared to the method of connecting a female base with a copper column and a copper busbar, the connection through two copper columns is more stable and reliable.

[0022] Furthermore, a mounting part is provided at the rear end of the copper pillar.

[0023] The advantage of this solution is that the copper column can be installed on the copper busbar with the assistance of the mounting part.

[0024] Furthermore, the mounting part is a slotted groove.

[0025] Furthermore, the length of the copper pillar matches the depth of the female base.

[0026] The beneficial effect of this solution is that the copper busbar is connected to the wire hole of the female socket by the copper column, and the copper column and the wire hole of the female socket are in full contact, which makes the copper busbar less likely to fall off and improves the stability of the copper busbar installed on the female socket.

[0027] This utility model also provides a car charging station, which includes at least the above-mentioned wiring device. Attached Figure Description

[0028] Figure 1 This is a front view of the wiring device in the car charging pile of this embodiment.

[0029] Figure 2 This is a three-dimensional structural diagram of the wiring device in the car charging pile of this embodiment.

[0030] Figure 3 This is a schematic diagram of the copper pillar structure in this embodiment.

[0031] Figure 4 This is a schematic diagram of the copper busbar structure in this embodiment.

[0032] Figure 5 This is a schematic diagram of the female seat in this embodiment.

[0033] Figures 1-5 middle:

[0034] 1. Copper busbar;

[0035] 2. Copper pillar;

[0036] 3. Mother's seat;

[0037] 11. Bus port;

[0038] 12. Copper busbar threaded hole;

[0039] 21. Threaded connection end;

[0040] 22. Installation Department;

[0041] 31. Wire hole;

[0042] 32. Isolation column. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0044] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "inner", "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 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 this utility model.

[0045] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an integral connection, or a detachable connection; they can refer to the internal connection of two components; they can refer to a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances.

[0046] like Figure 1 and Figure 2 As shown in the figure, a wiring device applied in a car charging pile according to this embodiment includes a copper busbar 1, a copper post 2, and a female connector 3. The structure of the copper post 2 is as follows: Figure 3 As shown, the front end of the copper pillar 2 is provided with a threaded connection end 21. Preferably, the rear end of the copper pillar 2 is provided with a mounting part 22. Furthermore, in this embodiment, the mounting part 22 is a slotted groove.

[0047] In this embodiment, the copper pillar 2 can be installed on the copper busbar 1 using tools such as screwdrivers and wrenches in conjunction with the mounting part 22, making the installation of the copper pillar 2 more convenient. It should be noted that in this embodiment, the mounting part 22 adopts a slotted structure, which is only a preferred embodiment. Those skilled in the art should understand that the mounting part 22 can also be a cross-shaped slot or other structures that require tools for installation, or it can be a structure with a rough surface that can be installed directly by hand.

[0048] like Figure 4 As shown, the copper busbar 1 is provided with a busbar hole 11 and a copper busbar threaded hole 12 adapted to the threaded connection end 21.

[0049] In this embodiment, the copper column 2 and the copper busbar 1 are directly connected by a thread. Compared to the connection method of "copper busbar 1 and wire" or directly using wires, it eliminates the need for cold-pressed terminals, nuts, screws, or bolts, reducing the number of parts used. Therefore, it avoids short circuits, poor contact, and other faults caused by the failure of these parts or materials or operator installation errors, improving the safety of the wiring device, facilitating operator installation, and increasing production efficiency.

[0050] In this embodiment, the copper busbar 1 and the copper column 2 are connected by a thread. The combination of the external thread and the internal thread increases the conductive contact area, which allows for a larger current to pass through, thereby increasing the charging power.

[0051] In this embodiment, the conductive contact area between the copper column 2 and the copper busbar 1 can be adjusted by the number of turns the copper column 2 turns into the threaded hole 12 on the copper busbar 1. This allows for changing the current and power according to actual needs. Compared with the traditional connection method where the current and power cannot be changed, this method has a wider range of applications and is more flexible in adjustment.

[0052] like Figure 5 As shown, the female connector 3 is provided with wire holes 31 that match the copper posts 2. Preferably, isolation posts 32 for isolating adjacent copper busbars 1 are provided between the wire holes 31 of the female connector 3. The isolation posts 32 are made of insulating material. Figure 1 and Figure 2 As shown, the isolation column 32 of the female seat 3 provides longitudinal restriction for the copper busbar 1.

[0053] In this embodiment, after the copper busbar 1 and the copper post 2 are threaded together, they can be directly plugged into the wire hole 31 of the female seat 3 through the matching copper post 2. Compared with the wire connection method that requires a certain installation method, the wiring complexity is reduced and the subsequent maintenance and repair by the operator is more convenient.

[0054] In this embodiment, the female connector 3 has two different voltage or current requirements for connecting lines. Correspondingly, the female connector 3 is provided with two different functional wire holes 31. These two wire holes 31 need to connect to two copper busbars 1, one above the other. The isolation post 32 can isolate these two adjacent copper busbars 1, keeping the creepage gap and creepage distance within the required safe range, thus enabling plug-and-play functionality for multiple copper busbars 1. It should be noted that the provision of two different functional wire holes 31 on the female connector 3 in this embodiment is merely a preferred implementation. Those skilled in the art should understand that the female connector 3 can also be provided with several different functional wire holes 31, each connected to multiple copper busbars 1, to improve the application capabilities of the female connector. Similarly, the provision of isolation posts 32 on the female connector 3 to isolate adjacent copper busbars 1 in this embodiment is also merely a preferred implementation. Those skilled in the art should understand that the female connector 3 can also employ structures such as isolation covers to isolate adjacent copper busbars 1.

[0055] like Figure 1 and Figure 2 As shown, the copper post 2 is threadedly connected to the copper busbar threaded hole 12 of the copper busbar 1 via the threaded connection end 21. After the copper busbar 1 and the copper post 2 are threadedly connected, the copper post 2 is directly inserted into the wire hole 31 of the female connector 3, ultimately connecting the female connector 3 to the external line through the bus hole 11 of the copper busbar 1. Preferably, the wiring device is provided with five female connectors 3. Preferably, these five female connectors 3 can be connected to one copper busbar 1 via two copper posts 2 respectively. Preferably, the length of the copper post 2 matches the depth of the female connector 3.

[0056] In this embodiment, the connection method of connecting the external line and the female connector 3 is to use "copper pillar 2 and copper busbar 1" instead of directly using wires or "wires and copper busbar 1". The flexible connection is changed to a rigid connection, which improves the stability and reliability of the connection.

[0057] In this embodiment, the overall structure of the wiring device is simpler, the disassembly and assembly are quicker, and it is convenient for later maintenance and the addition or removal of equipment. The wiring device optimizes the space in the distribution cabinet. When expanding, there is no need to make large-scale modifications to the existing lines. The modification difficulty and cost are both lower, and the expandability is better.

[0058] In this embodiment, the wiring device is equipped with five female connectors 3, which can meet more power supply needs. The wire holes 31 with the same function on these five female connectors 3 are converged to the bus hole 11 of the same copper busbar 1 via copper posts 2, and then connected to external lines through the bus hole 11. This improves the integration of the wiring, simplifies operation, and reduces the complexity of the wiring and the difficulty of installation. It should be noted that the five female connectors 3 in this embodiment are merely a preferred implementation. Those skilled in the art should understand that more or fewer female connectors 3 can be provided according to actual needs, and the functions of different female connectors 3 may also differ.

[0059] In this embodiment, the connection between a female connector 3 and a copper busbar 1 via two copper posts 2 is more stable and reliable than the connection between a female connector 3 and a copper busbar 1 via a single copper post 2. It should be noted that in this embodiment, connecting the female connector 3 and the copper busbar 1 via two copper posts 2 is merely a preferred embodiment. Those skilled in the art should understand that, depending on actual needs, more copper posts 2 can be used to connect the female connector 3 and the copper busbar 1, and the number of copper posts 2 connecting different female connectors 3 and copper busbar 1 can also vary.

[0060] In this embodiment, the copper busbar 1 is connected to the wire hole 31 of the female seat 3 by means of the copper column 2. The copper column 2 and the wire hole 31 of the female seat 3 are in full contact, which makes the copper busbar 1 less likely to fall off and improves the stability of the copper busbar 1 installed on the female seat 3.

[0061] In summary, the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A wiring device, characterized in that: It includes at least a copper busbar (1), a copper post (2) and a female seat (3). The copper busbar (1) is provided with a bus hole (11). The front end of the copper post (2) is provided with a threaded connection end (21). The copper busbar (1) is provided with a copper busbar thread hole (12) adapted to the threaded connection end (21). The female seat (3) is provided with a wire hole (31) matching the copper post (2). The female seat (3) is connected to the copper busbar (1) through at least one of the copper posts (2).

2. The wiring device according to claim 1, characterized in that: The female connector (3) has an isolation post (32) between the wire holes (31) for isolating adjacent copper busbars (1), and the isolation post (32) is made of insulating material.

3. The wiring device according to claim 1, characterized in that: At least two female seats (3) are provided, and all female seats (3) are connected to the copper busbar (1) through the copper column (2).

4. The wiring device according to claim 1, characterized in that: One of the female seats (3) is connected to one of the copper busbars (1) via two copper pillars (2).

5. The wiring device according to claim 1, characterized in that: The copper column (2) has an installation part (22) at its rear end.

6. The wiring device according to claim 5, characterized in that: The mounting part (22) is a slotted groove.

7. The wiring device according to claim 1, characterized in that: The length of the copper pillar (2) matches the depth of the mother seat (3).

8. A car charging station, characterized in that: It includes at least the wiring device as described in any one of claims 1-7.

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