Switchable air duct device for charger and charger

Abstract

The invention provides a switchable air duct device for a charger and the charger. According to the switchable air duct device for the charger, a box body is provided with a first ventilation opening and a second ventilation opening. The air duct isolation plate is arranged in the box body and divides the space in the box body into a first cavity and a second cavity, a through hole is formed in the middle of the air duct isolation plate, and the first cavity and the second cavity are communicated through the through hole. The heating assembly is installed at the ventilation opening. The first fan is arranged on the side wall of the box body corresponding to the first ventilation opening. The second fan is arranged on the side wall of the box body corresponding to the second ventilation opening. The air duct switching module is installed in the box body. And when the working state of the switchable air duct device for the charger is a heat dissipation mode, the air duct switching module is controlled to block the through hole, and the first ventilation opening and the second ventilation opening are opened. And when the working state of the switchable air duct device for the charger is a heating mode, the air duct switching module is controlled to block the first ventilation opening and the second ventilation opening, and the through hole is opened.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electrical equipment, in particular to a switchable air duct device for a charging machine and the charging machine. BACKGROUND

[0002] With the continuous development of the new energy industry, the popularity of charging piles is increasing, and the total amount of charging facilities continues to maintain a high growth rate. In many cold regions, the popularity of charging piles is limited in low-temperature areas, and it is required that the charging pile can be started and operated stably at low temperature. The charging pile has a large number of electrical components, and all the components selected to meet the low-temperature function greatly increase the cost of the charging pile, thereby affecting the popularity and use of the charging pile in cold regions. SUMMARY

[0003] Therefore, it is necessary to provide a switchable air duct device for a charging machine and the charging machine to solve the problem that the existing communication bus increases the cross-sectional area of the wire conductor to reduce the heat generation of the wire, resulting in an increase in the volume and cost of the wire.

[0004] A switchable air duct device for a charging machine comprises: a box body provided with a first air vent and a second air vent; an air duct isolation plate arranged in the box body and dividing the space in the box body into a first chamber and a second chamber, a through hole being formed in the middle of the air duct isolation plate, and the first chamber and the second chamber being communicated through the through hole; a heating assembly installed at the air vent; a first fan arranged on the side wall of the box body corresponding to the first air vent; a second fan arranged on the side wall of the box body corresponding to the second air vent; and an air duct switching module installed in the box body; When the working state of the switchable air duct device for the charging machine is a heat dissipation mode, the air duct switching module is controlled to block the through hole, and the first air vent and the second air vent are opened; When the working state of the switchable air duct device for the charging machine is a heating mode, the air duct switching module is controlled to block the first air vent and the second air vent, and the through hole is opened.

[0005] In one embodiment, the air duct switching module comprises: a mounting plate arranged on one side of the air duct isolation plate close to the first air vent and the second air vent; a first driving assembly fixed on one side of the mounting plate close to the first air vent; A first air door assembly is arranged on one side of the air duct partition plate close to the first air vent, the first air door assembly is rotationally connected with the first driving assembly, and the first driving assembly is used for controlling the first air door assembly to close or open the first air vent. A second driving assembly is fixed on one side of the mounting plate close to the second air vent. A second air door assembly is arranged on one side of the air duct partition plate close to the second air vent, the second air door assembly and the first air door assembly are symmetrically arranged about the air duct partition plate, the second air door assembly is rotationally connected with the second driving assembly, and the second driving assembly is used for controlling the second air door assembly to close or open the second air vent.

[0006] In one of the embodiments, the first driving assembly comprises: A first motor is fixed on the mounting plate. A first reversing gear is connected with a driving shaft of the first motor. A first rotating shaft gear is toothingly connected with the first reversing gear; and A first rotating shaft, the first rotating shaft gear is sleeved on the middle part of the first rotating shaft, and the first rotating shaft is fixedly connected with the first air door assembly.

[0007] In one of the embodiments, the first air door assembly comprises: A first air door is arranged on one side of the air duct partition plate close to the first air vent, the first air door is fixedly connected with the first rotating shaft, and the first rotating shaft is arranged on one side of the first air door close to the mounting plate; and A first sealing strip is pasted on the first air door, and the first sealing strip is arranged on one side of the first air door facing the first air vent.

[0008] In one of the embodiments, the second driving assembly comprises: A second motor is fixed on the mounting plate. A second reversing gear is connected with a driving shaft of the second motor. A second rotating shaft gear is toothingly connected with the second reversing gear; and A second rotating shaft, the second rotating shaft gear is sleeved on the middle part of the second rotating shaft, and the second rotating shaft is fixedly connected with the second air door assembly.

[0009] In one of the embodiments, the second air door assembly comprises: A second air door is arranged on one side of the air duct partition plate close to the second air vent, the second air door is fixedly connected with the second rotating shaft, and the second rotating shaft is arranged on one side of the second air door close to the mounting plate; and A second sealing strip is attached to the second air door, and the second sealing strip is arranged on a side of the second air door facing the second air vent.

[0010] In one of the embodiments, the switchable air duct device for the charger further comprises: A first slatted louver protection assembly is connected to the cabinet and arranged at the first air vent. A second slatted louver protection assembly is connected to the cabinet and arranged at the second air vent, and the first slatted louver protection assembly and the second slatted louver protection assembly are of the same structure.

[0011] In one of the embodiments, the first slatted louver protection assembly comprises: An air vent window frame is installed at the first air vent. An air vent window slatted louver is installed in the air vent window frame.

[0012] In one of the embodiments, the first slatted louver protection assembly further comprises: A waterproof adhesive tape is attached to a side of the air vent window frame away from the first fan. A dustproof member is installed in the air vent window frame, and the dustproof member is located on a side of the air vent window slatted louver close to the first fan.

[0013] A charger comprises: A charger mainframe. The switchable air duct device for the charger as described in any one of the above embodiments is installed in the charger mainframe. Compared with existing technologies, the above-mentioned switchable air duct device and charger for a charger are described. The switchable air duct device for a charger includes: a housing, an air duct isolation plate, a heating component, a first fan, a second fan, and an air duct switching module. The housing is provided with a first ventilation opening and a second ventilation opening. The air duct isolation plate is disposed in the housing and divides the space inside the housing into a first chamber and a second chamber. A through hole is opened in the middle of the air duct isolation plate, and the first chamber and the second chamber are connected through the through hole. The heating component is installed at the ventilation opening. The first fan is disposed on the side wall of the housing corresponding to the first ventilation opening. The second fan is disposed on the side wall of the housing corresponding to the second ventilation opening. The air duct switching module is installed in the housing. When the switchable air duct device for a charger is in heat dissipation mode, the air duct switching module is controlled to block the through hole, and the first and second ventilation openings are opened. When the switchable air duct device for a charger is in heating mode, the air duct switching module is controlled to block the first and second ventilation openings, and the through hole is opened. This application adopts the above structure, which reduces the cost of component selection through the heating device, thereby minimizing the cost of using the charging pile in low-temperature areas. At the same time, the heating and heat dissipation functions of the charger can be realized through the air duct switching module. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 A schematic diagram of the structure of a switchable air duct device for a charger provided in an embodiment of this application. Figure One ; Figure 2 A schematic diagram of the structure of a switchable air duct device for a charger provided in an embodiment of this application. Figure Two ; Figure 3 A schematic diagram of the operation of a switchable air duct device for a charger provided in an embodiment of this application. Figure One ; Figure 4 A schematic diagram of the operation of a switchable air duct device for a charger provided in an embodiment of this application. Figure Two ; Figure 5 A schematic diagram of the structure of a duct switching module provided in an embodiment of this application. Figure One ; Figure 6A schematic diagram of the structure of a duct switching module provided in an embodiment of this application. Figure Two ; Figure 7 A schematic diagram of the structure of the first oblique louver protection assembly provided in an embodiment of this application. Figure One ; Figure 8 A schematic diagram of the structure of the first oblique louver protection assembly provided in an embodiment of this application. Figure Two ; Figure 9 This is a schematic diagram of the structure of a charger provided in one embodiment of this application.

[0016] Explanation of reference numerals in the attached figures: 10. Switchable air duct device for charger; 11. Charger main unit; 100. Housing; 101. First vent; 102. Second vent; 110. First chamber; 120. Second chamber; 20. Charger; 200. Air duct isolation plate; 300. Heating component; 410. First fan; 420. Second fan; 500. Air duct switching module; 510. Mounting plate; 520. First drive component; 521. First motor; 522. First reversing gear; 523. First rotating shaft gear; 524. First... 530. Shaft; 531. First damper assembly; 532. First damper; 540. Second drive assembly; 541. Second motor; 542. Second reversing gear; 543. Second shaft gear; 544. Second shaft; 550. Second damper assembly; 551. Second damper; 552. Second sealing strip; 610. First slanted louver protection assembly; 611. Ventilation window frame; 612. Ventilation window slanted louver; 613. Waterproof rubber strip; 614. Dustproof component; 620. Second slanted louver protection assembly. Detailed Implementation

[0017] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0018] The serial numbers assigned to components in this document, such as "first" and "second," are used solely to distinguish the objects being described and do not have any sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages). It should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this application and for simplification, 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 application.

[0019] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0020] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0022] Please see Figures 1 to 4This application provides a switchable air duct device 10 for a charger. The switchable air duct device 10 includes: a housing 100, an air duct isolation plate 200, a heating component 300, a first fan 410, a second fan 420, and an air duct switching module 500. The housing 100 is provided with a first ventilation opening 101 and a second ventilation opening 102. The air duct isolation plate 200 is disposed within the housing 100, dividing the space within the housing 100 into a first chamber 110 and a second chamber 120. A through hole is formed in the middle of the air duct isolation plate 200, and the first chamber 110 and the second chamber 120 communicate through the through hole. The heating component 300 is installed at the ventilation opening. The first fan 410 is disposed on the side wall of the housing 100 corresponding to the first ventilation opening 101. The second fan 420 is disposed on the side wall of the housing 100 corresponding to the second ventilation opening 102. A duct switching module 500 is installed inside the housing 100. When the switchable duct device for the charger is in heat dissipation mode, the duct switching module 500 is controlled to block the through-hole, and the first vent 101 and the second vent 102 are opened. When the switchable duct device for the charger is in heating mode, the duct switching module 500 is controlled to block the first vent 101 and the second vent 102, and the through-hole is opened.

[0023] In some embodiments, a first ventilation opening 101 and a second ventilation opening 102 are respectively provided on the side wall of the housing 100. Inside the housing 100, a vertically arranged air duct partition 200 is provided. This air duct partition 200 divides the internal space of the housing 100 into two independent chambers: a first chamber 110 and a second chamber 120. A through hole is provided in the middle of the air duct partition 200, which is the only internal channel connecting the first chamber 110 and the second chamber 120.

[0024] In some embodiments, the heating component 300 is installed within the aforementioned through-hole. The heating component 300 is preferably a PTC (Positive Temperature Coefficient) heater or a silicone heating film, and its power is designed according to the chamber volume and the required temperature rise rate. The heating component 300 is used to heat the air passing through the through-hole when needed. The heating component 300 has a ventilation function; that is, although the heating component 300 is located at the through-hole, it does not completely block the through-hole, thus allowing ventilation between the first chamber 110 and the second chamber 120.

[0025] In some embodiments, heat dissipation is achieved through two fans: a first fan 410 is mounted on the side wall (typically the inner side) of the housing 100 corresponding to the first vent 101, for driving airflow. A second fan 420 is also mounted on the side wall (inner side) of the housing 100 corresponding to the second vent 102. The specifications and airflow of the two fans are typically matched according to the heat dissipation requirements and can be designed to operate simultaneously or individually under controlled conditions.

[0026] In some embodiments, the airflow switching module 500 is installed inside the housing 100. The airflow switching module 500 is used to dynamically change the airflow path inside the housing according to instructions issued by the charger main controller (based on signals from an ambient temperature sensor and / or an internal device temperature sensor).

[0027] Specifically, when the internal temperature of the charger is high and requires heat dissipation, or when the ambient temperature exceeds a safe threshold (e.g., >5°C), the charger can enter a heat dissipation mode using the switchable air duct device 10. At this time, the air duct switching module 500 activates, completely blocking the through holes on the air duct isolation plate 200, and the heating component 300 is de-energized, while ensuring that the first vent 101 and the second vent 102 are fully open. At this time, the first chamber 110 and the second chamber 120 are physically separated. The first fan 410 and the second fan 420 are both exhaust fans, expelling hot air from the casing through the vents, thereby achieving the heat dissipation function.

[0028] When the ambient temperature is too low (e.g., ≤0℃), and the charger needs preheating or insulation to ensure the normal operation of internal standard commercial-grade components, the charger with switchable air duct device 10 can enter heating mode. At this time, the air duct switching module 500 performs the opposite action: completely blocking the first vent 101 and the second vent 102, while simultaneously fully opening the through holes on the air duct isolation plate 200. At this time, the first vent 101 and the second vent 102 are closed, preventing external cold air from entering. The heating component 300 starts working, and the first fan 410 and the second fan 420 start, driving the air inside the housing 100 (first chamber 110 and second chamber 120) to circulate. The first fan 410 can be an intake fan, drawing in cold air from the charger. The drawn-in cold air flows from the first chamber 110 through the open through holes, through the lit heating component 300, is heated, enters the second chamber 120, and is then driven out of the second chamber 120 by the second fan 420 and sent back into the charger, thus completing the cycle. This design effectively retains heat within the charger and uses convection heating to rapidly raise the temperature of all components to a safe operating range. The power of the heating element 300 and the fan circulation speed can be controlled in a closed loop according to the target temperature. This embodiment employs the above structure, which, through the heating device, reduces the cost of component selection, minimizing the operating cost of the charging pile in low-temperature regions. Simultaneously, the air duct switching module enables both heating and heat dissipation of the charger.

[0029] In some embodiments, such as Figure 5 and Figure 6 The air duct switching module 500 includes: a mounting plate 510, a first drive assembly 520, a first damper assembly 530, a second drive assembly 540, and a second damper assembly 550. The mounting plate 510 is disposed on the side of the air duct isolation plate 200 near the first vent 101 and the second vent 102. The first drive assembly 520 is fixed to the side of the mounting plate 510 near the first vent 101. The first damper assembly 530 is disposed on the side of the air duct isolation plate 200 near the first vent 101, and is rotatably connected to the first drive assembly 520. The first drive assembly 520 controls the first damper assembly 530 to close or open the first vent 101. The second drive assembly 540 is fixed to the side of the mounting plate 510 near the second vent 102. The second damper assembly 550 is disposed on the side of the air duct isolation plate 200 near the second vent 102. The second damper assembly 550 and the first damper assembly 530 are symmetrically arranged about the air duct isolation plate 200. The second damper assembly 550 is rotatably connected to the second drive assembly 540. The second drive assembly 540 is used to control the second damper assembly 550 to close or open the second vent 102.

[0030] In some embodiments, the main support structure of the air duct switching module 500 is a mounting plate 510, which is vertically fixed inside the housing 100 by brackets or bolts and located in front of the air duct isolation plate 200 (i.e., on the side near the vent). For the opening and closing control of the first vent 101, a first drive assembly 520 and a first damper assembly 530 are provided. The first drive assembly 520 is fastened to the mounting plate 510 in the area near the first vent 101 by a mounting base. The first damper assembly 530 is located in the space between the air duct isolation plate 200 and the first vent 101.

[0031] In some embodiments, the first drive assembly 520 includes: a first motor 521, a first reversing gear 522, a first rotating shaft gear 523, and a first rotating shaft 524. The first motor 521 is fixed to the mounting plate 510. The first reversing gear 522 is connected to the drive shaft of the first motor 521. The first rotating shaft gear 523 is meshed with the first reversing gear 522. The first rotating shaft gear 523 is sleeved on the middle portion of the first rotating shaft 524, and the first rotating shaft 524 is fixedly connected to the first damper assembly 530.

[0032] In some embodiments, the first motor 521 serves as a power source, such as a geared motor, and is fixed to the mounting plate 510 by screws. The first reversing gear 522 is coaxially connected to the output shaft of the first motor 521 via a keyway or set screw. The first shaft gear 523 meshes with the first reversing gear 522, forming a single-stage gear reduction pair to increase output torque. One end of the first shaft 524 is supported on an additional bracket by a shaft pin. The first shaft gear 523 is fixedly sleeved in the middle of the first shaft 524 by a key or set screw.

[0033] In some embodiments, the first damper assembly 530 includes a first damper 531 and a first sealing strip 532. The first damper 531 is disposed on the side of the duct partition plate 200 near the first vent 101, and is fixedly connected to the first rotating shaft 524. The first rotating shaft 524 is disposed on the side of the first damper 531 near the mounting plate 510. The first sealing strip 532 is adhered to the first damper 531. The first sealing strip 532 is disposed on the side of the first damper 531 facing the first vent 101.

[0034] In some embodiments, the first damper 531 is typically made of a thin metal sheet or a high-strength engineering plastic sheet, and its shape matches and is slightly larger than the first vent 101. The first damper 531 is fixedly connected to the first rotating shaft 524 via a connecting structure on its side (e.g., by screws or welding). When the first rotating shaft 524 is driven to rotate, it causes the first damper 531 to rotate around the axis of the shaft, thereby realizing the opening and closing action in the horizontal or vertical direction.

[0035] In some embodiments, the first sealing strip 532 is made of elastic, high- and low-temperature resistant silicone rubber or neoprene rubber strip, and is adhered to the entire peripheral surface of the first damper 531 facing the first vent 101 by high-temperature resistant adhesive. When the first damper 531 is rotated to the closed position, the first sealing strip 532 is tightly pressed against the box wall or window frame around the first vent 101, achieving a reliable seal and preventing cold air infiltration or hot air leakage in heating mode.

[0036] In some embodiments, the second drive assembly 540 includes: a second motor 541, a second reversing gear 542, a second rotating shaft gear 543, and a second rotating shaft 544. The second motor 541 is fixed to the mounting plate 510. The second reversing gear 542 is connected to the drive shaft of the second motor 541. The second rotating shaft gear 543 is meshed with the second reversing gear 542. The second rotating shaft gear 543 is sleeved on the middle portion of the second rotating shaft 544, and the second rotating shaft 544 is fixedly connected to the second damper assembly 550.

[0037] In some embodiments, the second damper assembly 550 includes a second damper 551 and a second sealing strip 552. The second damper 551 is disposed on the side of the duct partition plate 200 near the second vent 102, and is fixedly connected to a second rotating shaft 544, which is disposed on the side of the second damper 551 near the mounting plate 510. The second sealing strip 552 is adhered to the second damper 551 and is disposed on the side of the second damper 551 facing the second vent 102.

[0038] In some embodiments, the second vent 102 is controlled by a set of components that are completely mirror-symmetrical to the first vent 101: a second drive assembly 540 and a second damper assembly 550. The second drive assembly 540 is also fixed to the mounting plate 510, but is located on the side closer to the second vent 102.

[0039] In some embodiments, the structure of the second drive assembly 540 is exactly the same as that of the first drive assembly 520, including a second motor 541, a second reversing gear 542, a second shaft gear 543, and a second shaft 544, with the same connection and transmission relationship. The structure of the second damper assembly 550 is exactly the same as that of the first damper assembly 530, including a second damper 551 and a second sealing strip 552. The second damper 551 is fixedly connected to the second shaft 544.

[0040] In some embodiments, the switchable air duct device 10 for the charger further includes: a first inclined louver protection assembly 610 and a second inclined louver protection assembly 620. The first inclined louver protection assembly 610 is connected to the housing 100 and disposed at the first vent 101. The second inclined louver protection assembly 620 is connected to the housing 100 and disposed at the second vent 102. The first inclined louver protection assembly 610 and the second inclined louver protection assembly 620 have the same structure.

[0041] In some embodiments, such as Figure 7 and Figure 8 As shown, the first oblique louver protection assembly 610 includes: a ventilation window frame 611 and ventilation window oblique louvers 612. The ventilation window frame 611 is installed in the first ventilation opening 101. The ventilation window oblique louvers 612 are installed inside the ventilation window frame 611.

[0042] In some embodiments, the ventilation window frame 611 may consist of a rectangular frame made of aluminum alloy or stainless steel profile, securely mounted to the outer periphery of the first ventilation opening 101 of the housing 100 by self-tapping screws or rivets. The ventilation window louvers 612 consist of a series of parallel metal blades with a fixed downward tilt angle (e.g., 45° to 60° with the horizontal plane). These blades are fixedly embedded within the ventilation window frame 611. The main function of the tilted louvers is to effectively prevent rainwater, snowflakes, and other vertically or nearly vertically falling liquids and solids from directly entering the housing. Simultaneously, due to the airflow channels between the blades, the horizontal airflow resistance is minimal, ensuring ventilation efficiency.

[0043] In some embodiments, the first louvered protective assembly 610 further includes a waterproof adhesive strip 613 and a dustproof component 614. The waterproof adhesive strip 613 is adhered to the side of the ventilation window frame 611 away from the first fan 410. The dustproof component 614 is installed inside the ventilation window frame 611, and the dustproof component 614 is located on the side of the ventilation window louvered 612 closer to the first fan 410.

[0044] In some embodiments, the waterproof strip 613 can be a closed rectangular foamed rubber or silicone sealing strip, which is attached to the back of the ventilation window frame 611 (i.e., the side facing the housing wall during installation, and also the side away from the first fan 410). When the frame 611 is fastened to the housing 100 with screws, the waterproof strip 613 is compressed, forming a reliable waterproof barrier between the frame and the housing wall, preventing rainwater from seeping in along the installation gaps.

[0045] In some embodiments, the dustproof component 614 can be a retractable primary dustproof net or filter cotton, installed inside the ventilation window frame 611 and located on the inner side of the ventilation window louvers 612 (i.e., the side closest to the first fan 410). The dustproof component 614 is used to intercept dust, lint, insects, and other fine debris in the air, preventing them from entering the housing and contaminating the fan blades, heating components, and electrical components, thus affecting heat dissipation and equipment lifespan. The dustproof component 614 is designed to be easily removed from the inside or outside of the housing for convenient periodic cleaning or replacement by the user. The second louver protection component 620 at the second ventilation opening 102 has the exact same structure and function, and will not be described further here.

[0046] Please see Figure 9 Another embodiment of this application provides a charger 20. The charger 20 includes: a charger host 11 and a switchable air duct device 10 for the charger as described in any of the above embodiments. The switchable air duct device for the charger is installed on the charger host 11. This embodiment adopts the above structure, and through the function of the heating device, the cost of component selection is reduced, thereby minimizing the cost of using the charging pile in low-temperature areas. At the same time, through the air duct switching module, the heating and heat dissipation functions of the charger can be realized.

[0047] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0048] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A switchable air duct device for a charger, characterized by, The application relates to a switchable air duct device for a charging machine. The switchable air duct device comprises: a box body provided with a first air vent and a second air vent; an air duct isolation plate arranged in the box body and dividing a space in the box body into a first chamber and a second chamber, a through hole being formed in the middle of the air duct isolation plate, and the first chamber and the second chamber being communicated through the through hole; a heating assembly installed at the air vent; a first fan arranged on a side wall of the box body corresponding to the first air vent; a second fan arranged on a side wall of the box body corresponding to the second air vent; and an air duct switching module installed in the box body. When the switchable air duct device for the charging machine is in a heat dissipation mode, the air duct switching module is controlled to block the through hole, and the first air vent and the second air vent are opened. When the switchable air duct device for the charging machine is in a heating mode, the air duct switching module is controlled to block the first air vent and the second air vent, and the through hole is opened.

2. The switchable air duct device for a charger according to claim 1, wherein The air duct switching module comprises: a mounting plate arranged on one side of the air duct isolation plate close to the first air vent and the second air vent; a first driving assembly fixed on one side of the mounting plate close to the first air vent; a first air door assembly arranged on one side of the air duct isolation plate close to the first air vent, the first air door assembly being rotationally connected with the first driving assembly, and the first driving assembly being used for controlling the first air door assembly to close or open the first air vent; a second driving assembly fixed on one side of the mounting plate close to the second air vent; a second air door assembly arranged on one side of the air duct isolation plate close to the second air vent, the second air door assembly and the first air door assembly being symmetrically arranged relative to the air duct isolation plate, the second air door assembly being rotationally connected with the second driving assembly, and the second driving assembly being used for controlling the second air door assembly to close or open the second air vent.

3. The switchable air duct arrangement for a charging station as defined in claim 2, characterized in that The first driving assembly comprises: a first motor fixed on the mounting plate; a first reversing gear connected with a driving shaft of the first motor; a first rotating shaft gear toothingly connected with the first reversing gear; and a first rotating shaft, the first rotating shaft gear being sleeved on the middle part of the first rotating shaft, and the first rotating shaft being fixedly connected with the first air door assembly.

4. The switchable air duct device for a charger according to claim 3, wherein The first air door assembly comprises: a first air door arranged on one side of the air duct isolation plate close to the first air vent, the first air door being fixedly connected with the first rotating shaft, and the first rotating shaft being arranged on one side of the first air door close to the mounting plate; and a first sealing strip pasted on the first air door, the first sealing strip being arranged on one side of the first air door facing the first air vent.

5. The switchable air duct arrangement for a charging station as defined in claim 2, wherein, The second driving assembly comprises: a second motor fixed on the mounting plate; a second reversing gear connected with a driving shaft of the second motor; a second rotating shaft gear toothingly connected with the second reversing gear; and a second rotating shaft, the second rotating shaft gear being sleeved on the middle part of the second rotating shaft, and the second rotating shaft being fixedly connected with the second air door assembly.

6. The switchable air duct arrangement for a charging station as defined in claim 5, characterized in that The second air door assembly comprises: A second air door is arranged on one side of the air duct partition plate close to the second air vent, and the second air door is fixedly connected with the second rotating shaft, and the second rotating shaft is arranged on one side of the second air door close to the mounting plate. A second sealing strip is attached to the second air door, and the second sealing strip is arranged on one side of the second air door facing the second air vent.

7. The switchable air duct arrangement for a charging station of claim 1, wherein, Further comprising: A first inclined louver protection assembly is connected with the box body and arranged in the first air vent. And A second inclined louver protection assembly is connected with the box body and arranged in the second air vent, and the first inclined louver protection assembly and the second inclined louver protection assembly are of the same structure.

8. The switchable air duct arrangement for a charging station of claim 7, wherein, The first inclined louver protection assembly comprises: An air window frame is installed in the first air vent; and An air window inclined louver is installed in the air window frame.

9. The switchable air duct arrangement for a charger according to claim 8, characterized in that, The first inclined louver protection assembly further comprises: A waterproof adhesive tape is attached to one side of the air window frame away from the first fan; and A dustproof piece is installed in the air window frame, and the dustproof piece is located on one side of the air window inclined louver close to the first fan.

10. A charger characterized by comprising: Comprise: A charger main machine; and The switchable air duct device for the charger according to any one of claims 1-9 is installed in the charger main machine. ​

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