A maintenance device for a charging pile

Abstract

The utility model belongs to charging pile technical field especially, it is a kind of maintenance device of charging pile, including cabinet, heat dissipation subassembly, power module and control unit are installed in cabinet, and maintenance door is equipped in the front and both sides of cabinet;The door body of both sides is equipped with air vent, and heat dissipation fan is installed in the maintenance door of one side, and dust filter screen assembly is installed in the maintenance door of the other side, dust filter screen assembly includes mounting frame, and the bottom of mounting frame is connected with the inside of the maintenance door of this side and overturns, and top is fixed through buckle, and the filter screen layer of detachable is embedded in mounting frame, the utility model can conveniently replace and clean filter screen layer, and it is convenient to maintain.

Description

Technical Field

[0001] This utility model relates to the field of charging pile technology, and in particular to a maintenance device for charging piles. Background Technology

[0002] Charging stations, as indispensable energy replenishment devices for electric vehicles, function similarly to gas stations for traditional gasoline vehicles. They safely and efficiently deliver electrical energy from the power grid to the electric vehicle's battery through internal power module conversion and adjustment. With the rapid development and popularization of the electric vehicle industry, the number of charging stations is increasing daily, and their operational reliability, safety, and ease of maintenance have become the focus of industry attention.

[0003] Currently, most charging stations on the market use a forced air cooling system. To achieve this, cooling vents are typically installed on the side or bottom of the charging station, along with an operable access door. This access door is not only used for routine inspection and maintenance of the internal fans and air ducts, but it is also usually equipped with a dust filter. Its function is to prevent dust, catkins, insects, and other debris from entering the charging station with the cooling airflow, thus avoiding contamination and dust accumulation of internal components, which could affect heat dissipation efficiency and electrical safety.

[0004] However, market research and actual maintenance feedback have revealed significant inconveniences in the design of existing side access doors and their filters during disassembly and cleaning. These inconveniences are primarily manifested in the following ways: Most existing designs directly fix the filter to the inside of the access door using multiple small screws. Maintenance personnel must use specialized tools such as screwdrivers to unscrew all the screws one by one to remove the filter during routine cleaning. This process is time-consuming and labor-intensive, especially when multiple charging stations need to be maintained in batches, significantly reducing maintenance efficiency. Furthermore, the small size of the screws makes them prone to loss or slippage in low-light or inclement weather conditions, increasing the difficulty and cost of maintenance. Utility Model Content

[0005] This utility model provides a maintenance device for charging piles, which aims to solve at least one of the above-mentioned technical problems.

[0006] This utility model provides the following technical solution: A maintenance device for a charging pile includes a cabinet, in which a heat dissipation component, a power module, and a control unit are installed. The cabinet has maintenance doors on the front and both sides. The doors on both sides have ventilation holes. A cooling fan is installed in one maintenance door, and a dust filter assembly is installed in the other maintenance door. The dust filter assembly includes a mounting frame. The bottom of the mounting frame is flipped and connected to the inside of the maintenance door on that side, and the top is fixed by a buckle. A removable filter layer is embedded in the mounting frame.

[0007] Preferably, the dimensions of the mounting frame match the ventilation hole area inside the maintenance door.

[0008] Preferably, the mounting frame is provided with a sealing strip on the side facing the maintenance door.

[0009] Preferably, the mounting frame has a baffle on the side away from the maintenance door, and the baffle has a through hole corresponding to the ventilation hole. One side of the baffle is flipped and connected to the side wall of the mounting frame, and the other side is fixed to the mounting frame by a snap-fit ​​structure.

[0010] Preferably, the maintenance door has a sealing strip on the side facing the cabinet.

[0011] Preferably, one side of the maintenance door is connected to the cabinet via a flip-down mechanism, and the other side is equipped with a door lock mechanism.

[0012] Preferably, the cooling fan and the dust filter are arranged opposite to each other to form a directional airflow.

[0013] Preferably, the cooling fan is electrically connected to a temperature sensor installed inside the cabinet, and the speed is adjusted by the control unit according to the real-time monitored internal temperature.

[0014] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit the present invention.

[0015] The ventilation holes are used to guide airflow from one side of the ventilation hole, which then flows through the heating element after being filtered by the dust filter and forced out by the cooling fan on the other side, forming an efficient directional airflow. The mounting frame in the dust filter assembly is used to securely embed the filter layer into the ventilation hole area to filter the air passing through, preventing dust accumulation from affecting the heat dissipation efficiency. The mounting frame can be quickly disassembled and assembled by flipping the bottom and snapping the top, which is convenient for regular cleaning or replacement of the filter layer.

[0016] When the filter layer needs to be cleaned or replaced, simply squeeze the handle to overcome the spring force and pull the limit rod out of the socket sleeve to unlock the top buckle. Then flip it over to open the mounting frame for quick and easy removal of the filter layer. The operation is convenient and requires no additional tools, effectively improving maintenance efficiency and ensuring the continuous and reliable dustproof function.

[0017] The baffle can be opened after the mounting frame is flipped down to fully expose the filter layer. It is only located on the flipped edge perpendicular to the main body of the mounting frame. When the filter layer only needs cleaning, it does not need to be removed. The exposed filter layer can be directly cleaned or blown away, greatly simplifying the maintenance process. When the filter layer needs to be replaced, the filter layer can be pulled out directly from the mounting frame without opening the baffle, avoiding repeated flipping operations and saving maintenance time.

[0018] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more obvious and understandable, specific embodiments of this utility model are given below. Attached Figure Description

[0019] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the overall structure of a maintenance door according to an embodiment of the present invention; Figure 3 for Figure 2 A schematic diagram showing the structure of the frame after it is flipped downwards, positioned for cleaning and replacing the filter layer. Figure 4 This is a partial enlarged structural diagram of the door. Figure 5 This is a schematic diagram of the structure after the upper baffle of the mounting frame is flipped downwards.

[0020] Figure label: 10. Cabinet; 20. Maintenance door; 2001. Door body; 2002. Sealing strip; 2003. Mounting frame; 2004. Hinge structure; 2005. Ventilation hole; 2006. Buckle; 2007. Filter layer; 20031. Sealing strip; 20061. Fixed sleeve; 20062. Limiting rod; 20063. Spring; 20064. Socket sleeve; 20071, Rotary limiting plate; 20072, Limiting block; 20073, Through hole. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0023] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0026] To better understand the purpose, function, and specific design of this utility model, the following detailed description is provided in conjunction with the accompanying drawings.

[0027] like Figure 1 As shown, this application provides a maintenance device for a charging pile, including a cabinet 10. The cabinet 10 is equipped with a heat dissipation component, a power module, and a control unit. The cabinet 10 has maintenance doors 20 on the front and both sides. The doors 2001 on both sides are provided with ventilation holes 2005. A cooling fan is installed in one maintenance door 20, and a dust filter assembly is installed in the other maintenance door 20. The dust filter assembly includes a mounting frame 2003. The bottom of the mounting frame 2003 is flipped and connected to the inside of the maintenance door 20 on that side, and the top is fixed by a buckle 2006. A removable filter layer 2007 is embedded in the mounting frame 2003.

[0028] The aforementioned cabinet 10 is used to house the core components of the charging pile. The maintenance door 20 on the front facilitates daily maintenance and operation. The ventilation holes 2005 on both sides, together with the cooling fan and dust filter assembly, achieve efficient air convection, effectively reducing the internal temperature of the cabinet 10, while blocking external dust from entering and ensuring the stable operation of electrical components. The ventilation holes 2005 are used to guide airflow from one side of the ventilation hole 2005, which flows through the heat-generating element after being filtered by the dust filter, and is then forcibly discharged by the cooling fan on the opposite side, forming an efficient directional airflow. The mounting frame 2003 in the dust filter assembly is used to securely embed the filter layer 2007 into the ventilation hole 2005 area to filter the passing air and prevent dust accumulation from affecting heat dissipation efficiency. The mounting frame 2003 is connected to the bottom flip and the top buckle 2006 to achieve quick disassembly and assembly, which is convenient for regular cleaning or replacement of the filter layer 2007.

[0029] Furthermore, the filter layer 2007 adopts a replaceable multi-layer composite filter, which is rectangular thin plate in shape and its size is compatible with the embedded groove of the mounting frame 2003.

[0030] Specifically, the mounting frame 2003 has a rectangular frame structure. On the side of the mounting frame 2003 opposite to the maintenance door 20, there is a U-shaped flip-up edge. This flip-up edge is perpendicular to the main body of the mounting frame 2003 and is used to limit and fix the filter layer 2007. For example, the bottom of the mounting frame 2003 is connected to the inside of the maintenance door 20 via a hinge structure 2004, allowing it to flip over. Figure 3 , Figure 4 As shown, the top buckle 2006 adopts a spring-loaded quick-locking mechanism, including a socket sleeve 20064 fixed to the top of the mounting frame 2003 and a fixing sleeve 20061 fixed to the maintenance door 20. A limiting rod 20062 is inserted into the fixing sleeve 20061. One end of the limiting rod 20062 has a handle, and the other end passes through the fixing sleeve 20061. A spring 20063 is provided between the handle and the fixing sleeve 20061. One end of the spring 20063 is fixedly connected to the handle, and the other end is connected to the fixing sleeve 20061. When the mounting frame 2003 is close to the inside of the maintenance door 20, the socket sleeve 20064... When 064 is aligned with the fixed sleeve 20061 and the spring 20063 is in the normal state, the limit rod 20062 passes through the fixed sleeve 20061 and extends into the socket sleeve 20064 to achieve locking and fixation. When it is necessary to clean or replace the filter layer 2007, simply squeeze the handle to overcome the elasticity of the spring 20063 and pull the limit rod 20062 out of the socket sleeve 20064 to unlock the top buckle 2006. Then flip the mounting frame 2003 to open it, which facilitates quick disassembly of the filter layer 2007. The operation is convenient and requires no additional tools, effectively improving maintenance efficiency and ensuring the continuous reliability of the dustproof function.

[0031] Furthermore, the flip-up connection structure between the mounting frame 2003 and the maintenance door 20 is equipped with a damping limit function, which can maintain any angle after opening, facilitating the removal of the filter layer 2007. The damping limit structure adopts a hinge assembly with a built-in rotary damper to ensure that the mounting frame 2003 unfolds smoothly during the flipping process and can stay at any opening angle, preventing inconvenience caused by its own weight falling down.

[0032] Furthermore, the filter layer 2007 has flexible sealing edges around its perimeter, which fit tightly into the inner groove of the mounting frame 2003, improving the filtration effect. The multi-layer composite filter consists of a primary nylon mesh, an activated carbon layer, and high-efficiency electrostatic cotton, which can intercept dust particles of different sizes in stages, extending its service life.

[0033] In some embodiments, such as Figures 2-3 As shown, the size of the mounting frame 2003 matches the ventilation hole 2005 area inside the maintenance door 20, so that the mounting frame 2003 completely covers the ventilation hole 2005 area, ensuring that the airflow can only enter the cabinet 10 after being filtered by the filter layer 2007, and preventing unfiltered air from directly seeping in from the gaps.

[0034] In some embodiments, such as Figure 3 As shown, the mounting frame 2003 has a sealing strip 20031 on the side facing the maintenance door 20, so that the mounting frame 2003 fits seamlessly with the maintenance door 20 when closed, further preventing dust from entering the cabinet 10 along the gap. The sealing strip 20031 is fixed to the inner edge of the maintenance door 20 by adhesive or embedded slot.

[0035] In some embodiments, such as Figure 2 , Figure 5 As shown, the mounting frame 2003 has a baffle on the side away from the maintenance door 20. The baffle has a through hole 20073 corresponding to the ventilation hole 2005. One side of the baffle is flipped and connected to the side wall of the mounting frame 2003, and the other side is fixed to the mounting frame 2003 by a snap-fit ​​structure.

[0036] The baffle can be opened after the mounting frame 2003 is flipped downwards, so that the filter layer 2007 is fully exposed. Only by flipping along the edge perpendicular to the main body of the mounting frame 2003, when the filter layer 2007 only needs cleaning, it is not necessary to remove the filter layer 2007. The exposed filter layer 2007 can be directly cleaned or blown away, which greatly simplifies the maintenance process. When the filter layer 2007 needs to be replaced, the filter layer 2007 can be pulled out directly from the mounting frame 2003 without opening the baffle, avoiding repeated operation of the flipping structure and saving maintenance time.

[0037] Specifically, such as Figure 2 , Figure 5As shown, the locking structure includes a rotating limiting plate 20071 rotatably mounted on the free end of the baffle, and a limiting block 20072 mounted on the side wall of the mounting frame 2003. The rotating limiting plate 20071 can be fastened to the limiting block 20072 to achieve locking. The limiting block 20072 is L-shaped, and the limiting block 20072 and the side wall of the mounting frame 2003 form an opening facing the rotating limiting plate 20071. Because the rotating limiting plate 20071 is slightly raised, after the rotating limiting plate 20071 is engaged, it is tightly fitted with the limiting block 20072 to achieve self-locking.

[0038] In some embodiments, such as Figure 2 As shown, the maintenance door 20 is provided with a sealing strip 2002 on the side facing the cabinet 10, so that the maintenance door 20 fits tightly with the cabinet 10 when closed, effectively preventing external dust from entering the cabinet 10 from the door gap, and further improving the sealing performance of the cabinet 10. The sealing strip 2002 is an annular rubber sealing strip 2002. An annular groove is provided on the maintenance door 20, and the rubber sealing strip 2002 is embedded in the annular groove and completely closed around the door circumference to ensure a seal without dead corners.

[0039] In some embodiments, such as Figure 1 As shown, the maintenance door 20 is connected to the cabinet 10 on one side by a flip-down connection, and a door lock mechanism is provided on the other side, so that the maintenance door 20 can be rotated to open or close around the flip-down connection end. The flip-down connection is achieved by a hinge or a hinge, and the door lock mechanism is located at the edge of the other side of the maintenance door 20.

[0040] In some embodiments, the cooling fan and the dust filter are arranged opposite to each other to form a directional air duct, so that when the cooling fan is running, it drives the airflow to flow from the outside to the inside. The airflow enters the cabinet 10 after being filtered by the filter layer 2007, which effectively improves the air circulation efficiency inside the cabinet 10 and reduces the risk of dust accumulation.

[0041] In some embodiments, the cooling fan is electrically connected to a temperature sensor installed inside the cabinet 10, and the speed is adjusted by the control unit according to the real-time monitored internal temperature. When the temperature inside the cabinet rises to a preset threshold, the control unit automatically increases the fan speed to enhance heat dissipation efficiency and ensure stable operation of the equipment. When the temperature drops back to a safe range, the fan speed decreases accordingly, realizing dynamic speed adjustment to reduce energy consumption and noise, while extending the fan's service life. The cooling fan and the temperature sensor are both electrically connected to the control unit, forming a closed-loop temperature control system. The control unit receives real-time temperature data fed back by the temperature sensor, analyzes it through a built-in algorithm, and outputs control commands to drive the cooling fan to operate at the optimal speed, which is its inherent function. In this embodiment, the cooling fan is connected to an external power supply through a power supply interface.

[0042] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. In the absence of conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A maintenance device for a charging pile, comprising a cabinet (10), wherein a heat dissipation assembly, a power module, and a control unit are installed inside the cabinet (10), and maintenance doors (20) are provided on the front and both sides of the cabinet (10); characterized in that, Ventilation holes (2005) are provided on both sides of the door (20). A cooling fan is installed in the maintenance door (20) on one side, and a dust filter assembly is installed in the maintenance door (20) on the other side. The dust filter assembly includes a mounting frame (2003). The bottom of the mounting frame (2003) is flipped and connected to the inside of the maintenance door (20) on that side, and the top is fixed by a buckle (2006). A removable filter layer (2007) is embedded in the mounting frame (2003).

2. The maintenance device for a charging pile according to claim 1, characterized in that, The dimensions of the mounting frame (2003) are matched with the ventilation hole (2005) area inside the maintenance door (20).

3. The maintenance device for a charging pile according to claim 2, characterized in that, The mounting frame (2003) is provided with a sealing strip (20031) on the side facing the maintenance door (20).

4. The maintenance device for a charging pile according to claim 3, characterized in that, The mounting frame (2003) has a baffle on the side away from the maintenance door (20). The baffle has a through hole (20073) corresponding to the ventilation hole (2005). One side of the baffle is flipped and connected to the side wall of the mounting frame (2003), and the other side is fixed to the mounting frame (2003) by a snap-fit ​​structure.

5. A maintenance device for a charging pile according to claim 1, characterized in that, The maintenance door (20) is provided with a sealing strip (2002) on the side facing the cabinet (10).

6. A maintenance device for a charging pile according to claim 5, characterized in that, The maintenance door (20) is connected to the cabinet (10) on one side by a flip-down mechanism, and a door lock mechanism is provided on the other side.

7. A maintenance device for a charging pile according to claim 1, characterized in that, The cooling fan and the dust filter are positioned opposite each other to form a directional airflow.

8. A maintenance device for a charging pile according to claim 1, characterized in that, The cooling fan is electrically connected to a temperature sensor installed inside the cabinet (10), and the speed is adjusted by the control unit according to the real-time monitored internal temperature.

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