Split charging pile installation device

Abstract

The utility model discloses a split type charging pile mounting device relates to electric automobile charging facility field. The device includes indoor host module, outdoor gun seat module and connecting module. Indoor host module includes main control circuit board and leakage protector, and can be dismantled and installed in the electric meter box, outdoor gun seat module includes protective shell and charging socket, and connecting module includes pre -buried sleeve and connecting cable, and the both ends of cable are connected waterproof quick -plug of indoor host and outdoor gun seat respectively. The utility model discloses through the built -in protection of high -voltage component, the outdoor component is extremely simplified, and combines the through -wall connection system of multiple seals, effectively solved the security risk high of traditional charging pile, the big installation cost, the inconvenient use etc. problem, has good security, and the convenient installation, the low cost, the user experience is good and so on outstanding advantages.

Description

Technical Field

[0001] This utility model relates to the field of electric vehicle charging facilities technology, specifically to a split-type charging pile installation device. Background Technology

[0002] With the increasing popularity of electric vehicles, the demand for home charging stations has surged. Currently, most mainstream charging stations adopt an integrated outdoor installation solution, directly fixing the entire unit, including the main control circuit, power module, and charging socket, to an outdoor wall or pillar. This installation method exposes the entire device to a complex outdoor environment for extended periods, facing multiple challenges such as rain, ultraviolet radiation, extreme temperatures (-30℃ to 70℃), and salt spray corrosion. This easily leads to circuit board oxidation and insulation aging, significantly increasing the probability of leakage or short circuits. According to statistics from the National Fire Protection Association (NFPA), approximately 35% of charging station failures are caused by electrical failures due to environmental factors. Furthermore, outdoor-installed equipment is susceptible to external impacts, animal chewing of cables, and even human damage. Its safety protection relies solely on a single casing (typically IP54 rating), which is insufficient to withstand long-term harsh operating conditions.

[0003] In terms of installation and use, traditional solutions require users to lay a dedicated line with a cross-sectional area of ​​≥6mm² from the indoor distribution box to the outdoor charging station. This process requires drilling through walls, damaging the building structure, resulting in complex wiring and affecting aesthetics. For users, frequent entry and exit from the indoor environment is necessary to start and stop the equipment, which is particularly unpleasant in rainy or snowy weather. If an extension line solution is used, the increased contact resistance due to multiple connections will cause unnecessary energy loss. At the same time, the high installation and maintenance costs are also a significant issue. Independent charging stations require a dedicated electricity meter, additional circuit breakers, and leakage protection devices, making labor and material costs account for more than 60% of the total investment. In the North American market, for example, the installation cost of a standard 7kW charging station can reach $1200-$2000. In case of failure, repairs often require disassembling the entire unit, which carries high risks due to outdoor high-altitude operations. If the main control module is damaged, the entire unit often needs to be replaced, and repair costs can account for 40%-70% of the equipment value.

[0004] While existing technologies have introduced the concept of split-type charging piles, such as separating the power module from the charging gun mount, the following shortcomings remain: the main control unit often still requires independent wall mounting, failing to fully utilize the inherent protective space of the meter box, resulting in exposed high-voltage circuits; indoor and outdoor connection cables mostly use ordinary waterproof connectors (such as IP44 rating), which are prone to aging and water leakage after long-term use, leading to insulation failures; and there is a lack of coordinated design with power grid infrastructure (such as smart meters and household wiring), making it impossible to achieve efficient deployment of "one-time construction, multi-device integration." Therefore, existing charging pile installation technologies have consistently failed to effectively reconcile the fundamental contradiction between user convenience and equipment safety, urgently requiring an innovative solution that restructures the system architecture. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a split-type charging pile installation device. It integrates high-voltage components in a protected indoor environment, simplifies the outdoor part, and connects the two through a reliable through-wall connection system, thereby significantly improving safety, simplifying installation, reducing costs, and optimizing user experience.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A split-type charging pile installation device includes an indoor main unit module, an outdoor gun base module, and a connection module.

[0007] The indoor host module includes a main control circuit board and a leakage current protector. The indoor host module is configured to be detachably installed in an external meter box. The input terminal of the indoor host module is electrically connected to the output terminal of the meter in the external meter box.

[0008] The outdoor gun mount module includes a protective housing and a charging socket disposed on the protective housing, wherein the protective housing is provided with a socket interface.

[0009] The connection module includes a pre-embedded sleeve and a connecting cable. The pre-embedded sleeve is installed in the wall, and the connecting cable is installed inside the pre-embedded sleeve. The indoor end of the connecting cable is connected to the power output end of the indoor main unit module, and its outdoor end is provided with a waterproof quick-connect plug that can be plugged into and locked into the socket interface, so that the connection module is electrically connected to the outdoor gun base module.

[0010] Furthermore, the indoor unit module is installed inside the external meter box via a rail mounting bracket. This installation method is standardized, quick, and secure.

[0011] Furthermore, the protective housing has a protection rating of at least IP65. This rating effectively resists outdoor dust intrusion and water spray, ensuring the safe operation of the outdoor unit in harsh weather conditions.

[0012] Furthermore, the bottom of the protective housing of the outdoor gun mount module is provided with a condensate drainage channel. This structure can effectively guide and discharge any rainwater or condensate that may seep in, preventing internal water accumulation that could lead to malfunctions.

[0013] Furthermore, the embedded sleeve is a metal sleeve with a rubber sealing ring lined its inner wall. The metal sleeve provides robust mechanical protection, and the inner rubber sealing ring can fit tightly against the passing cable, forming the first effective waterproof and dustproof sealing barrier.

[0014] Furthermore, the connection pair formed by the waterproof quick-connect plug and the socket interface has a protection rating of no less than IP67. This high level of protection ensures that the electrical connection point will not leak even under extreme conditions such as temporary immersion in water, resulting in extremely high connection reliability.

[0015] Furthermore, the connecting cable also integrates a CC line and a CP line that are electrically connected to the main control circuit board of the indoor host module. The CC line (connection confirmation line) is used to detect the correct connection between the charging gun and the vehicle, and the CP line (control guide line) is used to manage the start and stop of the charging process and the interaction of control signals. This is the core function for achieving safe and compliant charging.

[0016] Furthermore, the indoor host module also includes a communication module for remote monitoring and data transmission of charging status. The communication module supports wireless communication methods such as 4G or Wi-Fi, allowing users to remotely monitor the charging status via a mobile app, thus improving ease of use and intelligence.

[0017] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model, through architectural innovation, integrates all high-voltage circuitry, including the main control circuit board and leakage current protector, into the indoor main unit module, which is then installed inside a protected meter box, fundamentally isolating it from the corrosive effects of the complex outdoor environment. Simultaneously, the outdoor gun mount module is a passive mechanism containing only a charging socket, without any active high-voltage components, making the risk of electric shock in the outdoor section nearly zero. Furthermore, the connection module uses a metal pre-embedded sleeve lined with a rubber sealing ring, combined with a waterproof quick-connect plug with a protection level of at least IP67, forming a multi-layered sealed waterproof barrier that penetrates the wall, eliminating insulation failures caused by water seepage and systematically solving the core safety pain points of outdoor installation.

[0018] 2. This utility model reuses existing meter box space and power grid entry lines, allowing the indoor main unit module to be directly installed on the meter box rail and connected to the meter output terminal, eliminating the need for additional wiring, meter, and switch costs. The modular design and the application of waterproof quick-connect plugs make installation as easy as assembling building blocks; indoor and outdoor units can be connected quickly without specialized tools, reducing overall installation costs by more than 40%. During maintenance, thanks to the modular design, faulty indoor or outdoor modules can be replaced individually simply by removing the quick-connect plugs; repairs do not require damaging the exterior wall or disassembling the entire unit, significantly reducing maintenance costs and time.

[0019] 3. This utility model allows users to complete the entire charging process directly outdoors without any indoor operation. The outdoor charging gun module is plug-and-play, and the operation process is simple and intuitive. Furthermore, the communication module integrated into the indoor main unit module supports 4G / Wi-Fi, enabling users to remotely monitor the charging status in real time via a mobile app. This achieves intelligent and convenient charging management, completely solving the cumbersome problems associated with traditional solutions.

[0020] 4. The indoor main unit module of this utility model adopts a standard guide rail mounting bracket, achieving seamless integration with the power grid infrastructure; the CC and CP lines integrated inside the connecting cable ensure the compliance and stability of charging control signal transmission; the protection level of IP65 or higher and the design of the condensate drainage channel ensure the long-term reliability of the outdoor unit itself. This three-in-one standardized design not only guarantees the reliability of this installation, but also reserves expansion space for further integration with the smart grid in the future. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0022] Figure 2 This is a cross-sectional view of the connecting cable of this utility model; Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments, but the scope of protection of the present invention is not limited to the following embodiments.

[0024] like Figures 1 to 2 As shown, this utility model discloses a split-type charging pile installation device, which consists of three main parts: an indoor main unit module 1, an outdoor gun base module 2, and a connection module 3.

[0025] The indoor main unit module 1 is the core control unit of the device. Its casing dimensions are designed to be 180mm × 120mm × 80mm to fit within the internal space of a standard household meter box. The module integrates a main control circuit board 11, a residual current device (RCD) 12, and a communication module 13. The main control circuit board 11 is responsible for controlling and managing the charging process; the RCD 12 provides safety protection; and the communication module 13 supports 4G or Wi-Fi communication, enabling remote transmission of charging status data to the user's mobile app or management platform. This module can be easily installed into the pre-installed rails in the meter box using a standard DIN rail mounting bracket integrated on its back, achieving a secure and detachable installation. Its input terminal can be directly connected to the meter's output terminal, eliminating the need for a separate circuit breaker.

[0026] The connection module 3 is responsible for the safe and reliable connection between the indoor and outdoor components. It includes a pre-embedded sleeve 31 and a connecting cable 32. During installation, a hole (e.g., Φ50mm) needs to be drilled in the side wall of the meter box. Then, the stainless steel pre-embedded sleeve 31 is inserted into the hole, and a rubber sealing ring 311 is inserted into its inner wall. At the same time, waterproof adhesive is applied to the interface to form the first reliable sealing barrier. The connecting cable 32 is an armored flame-retardant cable (LSZH low-smoke halogen-free sheath). It not only contains power lines, but also integrates CC line 321 and CP line 322 for charging control. The cable 32 is run through the pre-embedded sleeve 31. Its indoor end is connected to the power output terminal of the indoor main unit module 1 and the control port on the main control circuit board 11, while the outdoor end is crimped with a waterproof quick-connect plug 33 with an IP67 protection rating.

[0027] The outdoor gun mount module 2 is the user-operated interface unit. Its protective housing 21 is made of waterproof and explosion-proof material with an IP65 protection rating and is fixed to the outdoor wall 1.2m above the ground with expansion bolts. The housing contains only a charging socket 22 and a socket interface 23 for electrical connection. This socket interface 23 is compatible with the waterproof quick-connect plug 33 at the end of the connecting cable 32. A condensate drainage groove 24 is machined at the bottom of the protective housing 21 to promptly drain any small amounts of rainwater or condensate that may seep in, preventing internal water accumulation. This module contains no high-voltage active components, ensuring high safety.

[0028] During installation, firstly, during the meter installation phase, the indoor main unit module 1 is fixed inside the meter box using a guide rail mounting bracket and the power is connected; then, a wall sleeve 31 is pre-embedded and a connecting cable 32 is threaded through it, connecting the indoor end; finally, the outdoor gun mount module 2 is fixed to the wall, and the waterproof quick-connect plug 33 is directly inserted into the socket interface 23 and the lock nut is tightened. The entire installation process is quick and requires no complicated wiring.

[0029] This utility model solves the problems of safety hazards, high costs and inconvenient maintenance of traditional charging pile installation methods through a split architecture of "indoor high-safety host + outdoor convenient gun mount + high-reliability through-wall connection".

[0030] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the protection scope of this utility model.

Claims

1. A split-type charging pile installation device, characterized in that, include: The indoor host module (1) includes a main control circuit board (11) and a leakage current protector (12), which are detachably installed in the external meter box. The input terminal of the indoor host module (1) is electrically connected to the output terminal of the meter in the external meter box. The outdoor gun mount module (2) includes a protective housing (21) and a charging socket (22) disposed on the protective housing (21). The connection module (3) includes a pre-embedded sleeve (31) and a connecting cable (32). The pre-embedded sleeve (31) is installed in the wall, and the connecting cable (32) is installed inside the pre-embedded sleeve (31). The indoor end of the connecting cable (32) is connected to the power output end of the indoor host module (1), and its outdoor end is provided with a waterproof quick-connect plug (33).

2. The split-type charging pile installation device according to claim 1, characterized in that, The outdoor gun mount module (2) has a socket interface (23) on its protective housing; the waterproof quick connector (33) is plugged into and locked to the socket interface (23) to make the connecting module (3) electrically connected to the outdoor gun mount module (2).

3. The split-type charging pile installation device according to claim 1, characterized in that, The pre-embedded sleeve (31) is a metal sleeve with a rubber sealing ring (311) lining its inner wall.

4. The split-type charging pile installation device according to claim 1, characterized in that, The protection level of the connection pair formed by the waterproof quick-connect plug (33) and the socket interface (23) is not lower than IP67.

5. The split-type charging pile installation device according to claim 1, characterized in that, The protective housing (21) has a protection level of not less than IP65.

6. The split-type charging pile installation device according to claim 1, characterized in that, The protective housing (21) of the outdoor gun mount module (2) has a condensate drainage groove (24) at the bottom.

7. The split-type charging pile installation device according to claim 1, characterized in that, The indoor host module (1) also includes a communication module (13) for remote monitoring and data transmission of charging status.

8. A split-type charging pile installation device according to claim 1, characterized in that, The connecting cable (32) also integrates a CC line (321) and a CP line (322) that are electrically connected to the main control circuit board (11) of the indoor host module (1).

9. A split-type charging pile installation device according to claim 1, characterized in that, The indoor host module (1) is installed in the external meter box via a guide rail.

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