A direct current charging pile

Abstract

The utility model relates to charging pile equipment technical field, concretely relates to a direct current charging pile. The direct current charging pile includes cabinet frame, baffle subassembly, front cabinet door, air inlet side cabinet door and air outlet side cabinet door, the baffle subassembly sets up in the cabinet frame, is used for separating the cabinet frame into front chamber and rear chamber, sets up the electrical device connected with the power supply in the rear chamber, the air inlet side cabinet door and air outlet side cabinet door are respectively open and close setting in the both sides of cabinet frame, are used for realizing the opening and closing and heat dissipation of rear chamber, all set up the inside unlocking of openable and closable connection with baffle subassembly on the air inlet side cabinet door and air outlet side cabinet door, set up the exhaust fan on the air outlet side cabinet door, the front cabinet door open and close setting in the front side of cabinet frame is used for realizing the opening and closing of front chamber, sets up the outside unlocking subassembly on the front cabinet door, the utility model has high heat removal efficiency, high safety and stroke control simple.

Description

Technical Field

[0001] This utility model relates to the field of charging pile equipment technology, specifically to a DC charging pile. Background Technology

[0002] The number of electric vehicles worldwide is increasing rapidly, leading to a significant increase in demand for charging infrastructure. Charging stations, as essential supporting infrastructure for the development of electric vehicles, have significant social and economic benefits. DC charging stations for electric vehicles are mainly used in public charging stations. Installing charging stations with a certain pressure in such public places places high demands on public safety, environmental integration, human-machine interaction, and ventilation and heat dissipation.

[0003] A utility model patent with publication number CN217672222U discloses a dual-gun DC charging pile housing using a sheet metal structure, which is welded as a whole. The charging pile has three openable door sections: a front cabinet door and two side cabinet doors. It also features obtuse-angle connections at several points, including the side panel folds, cable fixing plates and cable clamp bases, and the charging gun holder and cable rack. However, while the two side cabinet doors facilitate airflow to remove heat, they cannot actively expel heat, resulting in low heat dissipation efficiency. The main cabinet frame door has grid notches, causing heat to be evenly distributed throughout the cabinet during airflow, leading to overheating of the wiring and affecting usability. Furthermore, the side doors open from the outside, reducing overall safety and increasing the number of limit switches required, making the door control procedures and management more complex.

[0004] In summary, there is a need to provide a DC charging pile to solve the problems of low heat dissipation efficiency, uneven distribution of airflow heat throughout the cabinet leading to heating of the wiring and affecting its use, low safety due to outward-opening side doors, and complex stroke control in the existing technology. Utility Model Content

[0005] The purpose of this utility model is to provide a DC charging pile, and the specific technical solution is as follows: A DC charging pile includes a cabinet frame, a partition assembly, a front cabinet door, an air inlet side cabinet door, and an air outlet side cabinet door. The partition assembly is disposed within the cabinet frame to divide the cabinet frame into a front chamber and a rear chamber. Electrical components connected to a power source are disposed in the rear chamber. The air inlet side cabinet door and the air outlet side cabinet door are respectively openable and closable on both sides of the cabinet frame to enable opening and closing of the rear chamber and heat dissipation. Both the air inlet side cabinet door and the air outlet side cabinet door are provided with internal unlocking mechanisms that are openable and closable to the partition assembly. An exhaust fan is disposed on the air outlet side cabinet door. The front cabinet door is openable and closable on the front side of the cabinet frame to enable opening and closing of the front chamber. An external unlocking assembly is disposed on the front cabinet door.

[0006] Optionally, the external unlocking assembly includes a linkage latch installed on the front cabinet door and a matching linkage latch adapted to the linkage latch; It also includes a terminal control device and a limit switch; the limit switch is installed on the cabinet frame and is used to monitor the open and closed status of the front cabinet door; one end of the limit switch is connected to the power supply, and the other end is connected to the terminal control device.

[0007] Optionally, the internal unlocking includes a retaining buckle; a latch adapted to the retaining buckle is provided on the partition assembly.

[0008] Optionally, the air inlet side cabinet door includes an air inlet door panel and an air inlet assembly; the air inlet door panel is openable and closable on one side of the cabinet frame; the air inlet assembly includes a first louver frame, first blades, and a dust filter; the first louver frame is disposed on the air inlet door panel, and a waterproof strip is provided between the two; there are multiple first blades, all of which are disposed within the first louver frame to form the first louver; an air inlet gap is reserved between each pair of adjacent first blades; the dust filter is disposed on the first louver frame and is disposed adjacent to the first blades.

[0009] Optionally, the air outlet side cabinet door includes an air outlet door panel and an air outlet assembly; the air outlet door panel is openable and closable on one side of the cabinet frame; the air outlet assembly includes a second louver frame, second blades, and a screen; the second louver frame is disposed on the air outlet door panel, and a waterproof strip is provided between the two; there are multiple second blades, all disposed within the second louver frame to form second louvers; an air outlet gap is reserved between each pair of adjacent second blades; the screen is disposed on the second louver frame and is disposed adjacent to the second blades.

[0010] Optionally, the partition assembly includes a front partition, a lower partition, and a bracket; the latch is disposed on the front partition; the front partition is disposed within the cabinet frame and is used to divide the cabinet frame into a front chamber and a rear chamber; the lower partition is disposed within the cabinet frame and connected to the front partition, and is used to divide the rear chamber into a rear upper chamber and a rear lower chamber; the bracket is disposed in the rear upper chamber and is connected to the front partition, the lower partition, and the cabinet frame; electrical components are disposed on the bracket; the air inlet assembly and the air outlet assembly are both disposed corresponding to the rear upper chamber.

[0011] Optionally, handles are provided on both the air inlet cabinet door and the air outlet cabinet door; through holes adapted to the handles are provided on the front partition.

[0012] Optionally, the cabinet frame includes a frame body and an outer panel disposed on the outside of the frame body; the outer panel is an integral bent outer panel, which is adapted to the outer periphery of the frame body.

[0013] Optionally, the DC charging pile further includes a charging gun holder; the charging gun holder is provided on both sides of the cabinet frame; the charging gun holder is connected to electrical components.

[0014] Optionally, the DC charging pile also includes a base; the base is disposed at the bottom of the cabinet frame; and multiple through holes are provided on the base.

[0015] The application of the technical solution of this utility model has at least the following beneficial effects: (1) The DC charging pile provided by this utility model uses an external unlocking component to open the front cabinet door when inspection and maintenance are required. By providing internal unlocking components that can be opened and closed on both the air inlet side cabinet door and the air outlet side cabinet door, that is, both the air inlet side cabinet door and the air outlet side cabinet door adopt an internal unlocking structure, which needs to be opened from inside the cabinet frame, the safety is greatly improved, and the problem of low safety caused by the outward opening of the side door is solved. In addition, this utility model provides an exhaust fan on the air outlet side cabinet door, which increases the air flow rate from the air inlet side cabinet door to the air outlet side cabinet door, accelerates the heat dissipation of electrical components, and thus improves the heat dissipation efficiency.

[0016] (2) In this utility model, a limit switch is used to monitor the opening and closing status of the front cabinet door. When the limit switch transmits the signal of the front cabinet door being open to the terminal control device, the terminal control device issues a stop charging command to avoid charging safety accidents during charging pile inspection and maintenance. After the front cabinet door is open, the operator can open or close the air inlet side cabinet door and the air outlet side cabinet door by pushing and pulling the handle. Therefore, this utility model can realize the monitoring of the front cabinet door, the air inlet side cabinet door and the air outlet side cabinet door by using only the limit switch of the front cabinet door, which greatly reduces the number of limit switches used and simplifies the control procedures and management requirements of the front cabinet door, the air inlet side cabinet door and the air outlet side cabinet door.

[0017] (3) The partition assembly used in this utility model divides the cabinet frame into a front chamber, a rear upper chamber and a rear lower chamber. Electrical components that are prone to generating heat are placed in the rear upper chamber. The heat generated when they are working is concentrated in the rear upper chamber. Under the combined action of the air inlet assembly, the air outlet assembly and the exhaust fan, the heat can be quickly discharged, which solves the problem that the heat of the airflow is evenly distributed throughout the cabinet, causing the circuit to be heated and affecting its use.

[0018] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The present utility model will now be described in further detail with reference to the figures. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings: Figure 1 This is a schematic diagram of the structure of a DC charging pile when the front cabinet door is opened, as shown in the embodiment. Figure 2 This is a structural schematic diagram of a DC charging pile from another perspective when the front cabinet door is open (the front cabinet door is not shown in the figure). Figure 3 This is a schematic diagram of the structure of a DC charging pile when the air outlet cabinet door is opened (the front cabinet door is not shown in the figure). Figure 4 This is a schematic diagram of the air inlet side cabinet door in the embodiment (the first blade is not shown in the figure). The components include: 1. Cabinet frame; 1.1. Front chamber; 1.2. Rear upper chamber; 1.3. Rear lower chamber; 2. Partition assembly; 2.1. Front partition; 2.2. Lower partition; 2.3. Bracket; 3. Front cabinet door; 4. Air inlet side cabinet door; 4.1. Air inlet door panel; 4.2. Air inlet assembly; 4.2.1. First louver frame; 4.2.2. Dust filter; 5. Air outlet side cabinet door; 5.1. Air outlet door panel; 5.2. Air outlet assembly; 6. External locking assembly; 7. Fixing buckle; 8. Lock; 9. Handle; 10. Charging gun holder; 11. Base. Detailed Implementation

[0020] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0021] Example: See Figures 1-4A DC charging pile includes a cabinet frame 1, a partition assembly 2, a front cabinet door 3, an air inlet side cabinet door 4, and an air outlet side cabinet door 5. The partition assembly 2 is disposed within the cabinet frame 1 to divide the cabinet frame 1 into a front chamber 1.1 and a rear chamber. Electrical components (not shown in the figure) connected to a power source are disposed in the rear chamber. The air inlet side cabinet door 4 and the air outlet side cabinet door 5 are respectively hinged and can be opened and closed on both sides of the cabinet frame 1 to enable opening and closing of the rear chamber and heat dissipation. Both the air inlet side cabinet door 4 and the air outlet side cabinet door 5 are provided with internal unlocking mechanisms that can be opened and closed to the partition assembly 2. An exhaust fan (not shown in the figure) is disposed on the air outlet side cabinet door 5. The front cabinet door 3 is hinged and can be opened and closed on the front side of the cabinet frame 1 to enable opening and closing of the front chamber 1.1. An external unlocking assembly 6 is disposed on the front cabinet door 3. When inspection and maintenance are required, the front cabinet door 3 is opened using the external unlocking component 6. Internal unlocking mechanisms, which connect to the partition assembly 2, are installed on both the air inlet side door 4 and the air outlet side door 5. This means both the air inlet side door 4 and the air outlet side door 5 employ internal unlocking structures, requiring them to be opened from within the cabinet frame 1, significantly improving security. An exhaust fan is installed on the air outlet side door 5, increasing the airflow rate from the air inlet side door 4 to the air outlet side door 5, accelerating the removal of heat from electrical components, and thus improving heat dissipation efficiency.

[0022] The external unlocking assembly 6 includes a linkage latch installed on the front cabinet door 3 and a matching linkage adapted to the linkage latch; when it is necessary to open the front cabinet door 3, the front cabinet door 3 is opened by inserting a lock plate into the linkage latch and linking the matching linkage.

[0023] The DC charging pile also includes a terminal control device (not shown in the figure) and a limit switch (not shown in the figure). The limit switch is installed on the cabinet frame 1 and is used to monitor the open and closed status of the front cabinet door 3. One end of the limit switch is connected to the power supply, and the other end is connected to the terminal control device. In this embodiment, the limit switch is used to monitor the open and closed status of the front cabinet door 3. When the limit switch transmits the signal that the front cabinet door 3 is open to the terminal control device, the terminal control device issues a stop charging command to avoid charging safety accidents during charging pile inspection and maintenance. After the front cabinet door 3 is open, the operator can push or pull the handle 9 to open or close the air inlet side cabinet door 4 and the air outlet side cabinet door 5. Therefore, in this embodiment, the monitoring of the front cabinet door 3, the air inlet side cabinet door 4, and the air outlet side cabinet door 5 can be realized by using only the limit switch of the front cabinet door 3, which greatly reduces the number of limit switches used and simplifies the control procedures and management requirements of the front cabinet door 3, the air inlet side cabinet door 4, and the air outlet side cabinet door 5.

[0024] The internal unlocking mechanism includes a retaining buckle 7; a latch 8 (the latch 8 is a conventional commercially available vibration-resistant latch) is provided on the partition assembly 2 to be adapted to the retaining buckle 7.

[0025] The air inlet side cabinet door 4 includes an air inlet door panel 4.1 and an air inlet assembly 4.2. The air inlet door panel 4.1 is openable and closable on one side of the cabinet frame 1. The air inlet assembly 4.2 includes a first louver frame 4.2.1, first blades, and a dust filter 4.2.2. The first louver frame is mounted on the air inlet door panel 4.1, and a waterproof strip is installed between them to improve waterproofing. There are multiple first blades, all of which are installed within the first louver frame to form the first louvers. An air inlet gap is reserved between each pair of adjacent first blades. The dust filter is mounted on the first louver frame and is adjacent to the first blades to filter external impurities and prevent impurities from entering the cabinet frame 1. The first blades and the dust filter are arranged sequentially along the air inlet direction.

[0026] The air outlet side cabinet door 5 includes an air outlet door panel 5.1 and an air outlet assembly 5.2. The air outlet door panel 5.1 is openable and closable on one side of the cabinet frame 1. The air outlet assembly 5.2 includes a second louver frame, second blades, and a screen. The second louver frame is mounted on the air outlet door panel 5.1, and a waterproof strip is installed between them to improve waterproofing. There are multiple second blades, all of which are installed within the second louver frame to form the second louver. An air outlet gap is reserved between each pair of adjacent second blades. The screen is mounted on the second louver frame and is adjacent to the second blades to prevent insects, small animals, etc., from entering the cabinet frame 1 and causing damage to electrical components. The screen and the second blades are arranged sequentially along the air outlet direction.

[0027] The partition assembly 2 includes a front partition 2.1, a lower partition 2.2, and a bracket 2.3; the latch 8 is disposed on the front partition 2.1; the front partition 2.1 is disposed within the cabinet frame 1 and is used to divide the cabinet frame 1 into a front chamber 1.1 and a rear chamber; the lower partition 2.2 is disposed within the cabinet frame 1 and connected to the front partition 2.1, and is used to divide the rear chamber into a rear upper chamber 1.2 and a rear lower chamber 1.3; the bracket 2.3 is disposed in the rear upper chamber 1.2 and is connected to the front partition 2.1, the lower partition 2.2, and the cabinet frame 1; electrical components that easily generate heat are disposed on the bracket 2.3; the air inlet assembly 4.2 and the air outlet assembly 5.2 are both disposed corresponding to the rear upper chamber 1.2 to facilitate the rapid discharge of heat generated when the electrical components are working.

[0028] Handles 9 are provided on both the air inlet side cabinet door 4 and the air outlet side cabinet door 5; through holes adapted to the handles 9 are provided on the front partition 2.1 to facilitate the opening and closing of the air inlet side cabinet door 4 and the air outlet side cabinet door 5 through the handles 9.

[0029] The cabinet frame 1 includes a frame body and an outer panel disposed on the outside of the frame body; the outer panel is an integral bent outer panel, which is adapted to the outer periphery of the frame body, thereby achieving protection of the frame body and its interior.

[0030] The DC charging pile also includes a charging gun holder 10; the charging gun holder 10 is provided on both sides of the cabinet frame 1; the charging gun holder 10 is connected to electrical components.

[0031] The DC charging pile also includes a base 11; the base 11 is located at the bottom of the cabinet frame 1; multiple through holes are provided on the base 11 to facilitate heat dissipation and prevent water accumulation at the bottom of the cabinet frame 1.

[0032] When the DC charging pile described in this embodiment needs to be inspected and maintained, the front cabinet door 3 is opened by the external unlocking component 6. The internal unlocking is provided on both the air inlet cabinet door 4 and the air outlet cabinet door 5, which can be opened and closed by the partition component 2. That is, both the air inlet cabinet door 4 and the air outlet cabinet door 5 adopt the internal unlocking structure, which needs to be opened from inside the cabinet frame 1, greatly improving the safety. After the front cabinet door 3 is opened, the operator can push or pull the handle 9 to open or close the air inlet side cabinet door 4 and the air outlet side cabinet door 5. In this embodiment, the monitoring of the front cabinet door 3, the air inlet side cabinet door 4 and the air outlet side cabinet door 5 can be realized by using the limit switch of the front cabinet door 3, which greatly reduces the number of limit switches used and simplifies the control procedures and management requirements of the front cabinet door 3, the air inlet side cabinet door 4 and the air outlet side cabinet door 5.

[0033] The DC charging pile described in this embodiment has high heat dissipation efficiency, and its principle is as follows: An exhaust fan is installed on the air outlet side cabinet door 5, which increases the air flow rate from the air inlet side cabinet door 4 to the air outlet side cabinet door 5, accelerates the removal of heat from the electrical components, and thus improves the heat removal efficiency. The partition assembly 2 divides the cabinet frame 1 into a front chamber 1.1, a rear upper chamber 1.2, and a rear lower chamber 1.3. Electrical components that are prone to generating heat are placed in the rear upper chamber 1.2. The heat generated during their operation is concentrated in the rear upper chamber 1.2. With the combined action of the air intake assembly 4.2, the air outlet assembly 5.2, and the exhaust fan, the heat can be quickly discharged, solving the problem of heat distribution throughout the cabinet causing the wiring to overheat and affect its use. Electrical components are also located in the front chamber 1.1 and the rear lower chamber 1.3, but they generate little heat. The heat dissipation requirements of the electrical circuits of the components can be met by the spatial structure inside the cabinet and the heat dissipation through conduction with the air in the space. Therefore, it is not necessary to use the air intake assembly 4.2 and the air exhaust assembly 5.2 for heat dissipation.

[0034] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A DC charging pile, characterized in that, The cabinet includes a cabinet frame (1), a partition assembly (2), a front cabinet door (3), an air inlet side cabinet door (4), and an air outlet side cabinet door (5). The partition assembly (2) is located inside the cabinet frame (1) to divide the cabinet frame (1) into a front chamber (1.1) and a rear chamber. Electrical components connected to a power source are located in the rear chamber. The air inlet side cabinet door (4) and the air outlet side cabinet door (5) are respectively openable and closable on both sides of the cabinet frame (1) to enable opening and closing and heat dissipation of the rear chamber. An internal unlocking mechanism that can be opened and closed to the partition assembly (2) is provided on both the air inlet side cabinet door (4) and the air outlet side cabinet door (5). An exhaust fan is provided on the air outlet side cabinet door (5). The front cabinet door (3) is openable and closable on the front side of the cabinet frame (1) to enable opening and closing of the front chamber (1.1). An external unlocking assembly (6) is provided on the front cabinet door (3).

2. The DC charging pile according to claim 1, characterized in that, The external unlocking assembly (6) includes a linkage latch installed on the front cabinet door (3) and a matching linkage adapted to the linkage latch; It also includes a terminal control device and a limit switch; the limit switch is installed on the cabinet frame (1) and is used to monitor the opening and closing status of the front cabinet door (3); one end of the limit switch is connected to the power supply, and the other end is connected to the terminal control device.

3. The DC charging pile according to claim 1, characterized in that, The internal unlocking includes a retaining buckle (7); a latch (8) adapted to the retaining buckle (7) is provided on the partition assembly (2).

4. The DC charging pile according to claim 3, characterized in that, The air inlet side cabinet door (4) includes an air inlet door panel (4.1) and an air inlet assembly (4.2); the air inlet door panel (4.1) is openable and closable on one side of the cabinet frame (1); the air inlet assembly (4.2) includes a first louver frame, first blades and a dust filter; the first louver frame is disposed on the air inlet door panel (4.1) and a waterproof strip is disposed between the two; there are multiple first blades, all of which are disposed within the first louver frame to form the first louver; an air inlet gap is reserved between each pair of adjacent first blades; the dust filter is disposed on the first louver frame and is disposed adjacent to the first blades.

5. The DC charging pile according to claim 4, characterized in that, The air outlet side cabinet door (5) includes an air outlet door panel (5.1) and an air outlet assembly (5.2); the air outlet door panel (5.1) is openable and closable on one side of the cabinet frame (1); the air outlet assembly (5.2) includes a second louver frame, second blades and a screen; the second louver frame is set on the air outlet door panel (5.1) and a waterproof strip is set between the two; there are multiple second blades, all of which are set inside the second louver frame to form a second louver; an air outlet gap is reserved between each pair of adjacent second blades; the screen is set on the second louver frame and is set adjacent to the second blades.

6. The DC charging pile according to claim 5, characterized in that, The partition assembly (2) includes a front partition (2.1), a lower partition (2.2), and a bracket (2.3); the latch (8) is disposed on the front partition (2.1); the front partition (2.1) is disposed within the cabinet frame (1) to divide the cabinet frame (1) into a front chamber (1.1) and a rear chamber; the lower partition (2.2) is disposed within the cabinet frame (1) and connected to the front partition (2.1). The bracket (2.3) is used to divide the rear chamber into a rear upper chamber (1.2) and a rear lower chamber (1.3); the bracket (2.3) is disposed in the rear upper chamber (1.2) and is connected to the front partition (2.1), the lower partition (2.2) and the cabinet frame (1); electrical components are disposed on the bracket (2.3); the air inlet assembly (4.2) and the air outlet assembly (5.2) are both disposed corresponding to the rear upper chamber (1.2).

7. The DC charging pile according to claim 6, characterized in that, Handles (9) are provided on both the air inlet side cabinet door (4) and the air outlet side cabinet door (5); through holes adapted to the handles (9) are provided on the front partition (2.1).

8. The DC charging pile according to claim 1, characterized in that, The cabinet frame (1) includes a frame body and an outer panel disposed on the outside of the frame body; the outer panel is an integral bent outer panel, which is adapted to the outer periphery of the frame body.

9. The DC charging pile according to claim 1, characterized in that, It also includes a charging gun holder (10); the charging gun holder (10) is provided on both sides of the cabinet frame (1); the charging gun holder (10) is connected to the electrical components.

10. The DC charging pile according to any one of claims 1 to 9, characterized in that, It also includes a base (11); the base (11) is located at the bottom of the cabinet frame (1); and multiple through holes are provided on the base (11).

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