High-protection charging pile

Abstract

The utility model relates to the field of charging equipment of electric vehicles, in particular to a high-protection charging pile. The high-protection charging pile comprises a cabinet body, the cabinet body comprises a cabinet body support, an outer skin and an inner partition plate, the cabinet body support comprises cross beams and stand columns corresponding to the edges of the outer skin and the inner partition plate, the outer skin and the inner partition plate are fixedly and hermetically matched with the corresponding cross beams and stand columns, and a heat insulation cavity is defined between the outer skin and the inner partition plate. The air layer between the outer skin and the inner partition plate can effectively reduce heat transfer, so that the high temperature of the outer skin of the cabinet body of the high-protection charging pile does not easily influence the temperature in the cabinet body when the high-protection charging pile is exposed to the sun, and the high-protection charging pile has excellent heat insulation performance. The cross beams and the stand columns can enable the overall structural strength of the cabinet body to be higher and not prone to deformation, meanwhile, contact parts between the outer skin and the cabinet body support and between the inner partition plate and the cabinet body support are in sealed fit, the sealing effect between the cabinet body support and the outer skin and between the cabinet body support and the inner partition plate is better, and the heat insulation performance of the charging pile is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the charging equipment field of electric vehicle especially, relate to a high protection charging pile. BACKGROUND

[0002] At present, the performance demand of new energy vehicles to charging pile usually includes large charging power, good heat insulation and heat dissipation capacity, dehumidification capacity and high protection capacity. Large power charging pile will produce a large amount of heat in the process of electric energy conversion, and if the heat dissipation of the charging pile is unreliable, the aging speed of the charging pile parts will be accelerated, the service life of the charging pile is shortened, and the power will be reduced due to high temperature. Most of the use scene of the charging pile is outdoor, which needs to withstand wind and sun, and the sunning of the sun will also cause the overheat of the internal charging pile, accelerate the aging of the equipment and increase the maintenance frequency, and the charging pile is often attacked by wind and rain when used outdoors, so the charging pile needs to have certain rainproof ability, and the surface of the charging pile is easy to accumulate dust due to frequent outdoor use, which will cause the wear or short circuit of the internal parts of the charging pile, greatly shorten the service life of the charging pile.

[0003] The existing high protection charging pile usually adopts liquid cooling heat dissipation mode and independent air duct heat dissipation mode in terms of heat dissipation. The liquid cooling heat dissipation mode usually sets up a heat dissipation system composed of water pump, water tank, fan and radiator in the charging pile, the water pump drives the liquid circulation to cool the electrical equipment inside the charging pile and charging gun, and the charging gun or charging module of the charging pile is usually replaced by liquid cooling heat dissipation equipment, the liquid cooling charging gun sets up a special liquid circulation channel between the cable and the charging gun, drives the cooling liquid circulation by the water pump, and effectively takes away the heat generated in the charging process; The liquid cooling charging module generally has a closed shell, the bottom of the shell is a liquid cooling heat dissipation cavity, the heat generating device inside the charging module transmits heat to the heat dissipation cavity through the heat conducting medium, the water pump drives the cooling liquid circulation, and effectively takes away the heat generated in the charging process. The heat dissipation mechanism of the charging pile adopting independent air duct heat dissipation mode usually includes an inner circulation module, an outer circulation module and a heat exchange assembly, the inner circulation module and the charging module form a closed cavity, and the two ends of the heat exchange assembly are arranged in the outer circulation module and the inner circulation module respectively, so that the outer circulation module and the inner circulation module form heat exchange, and the outer circulation module exchanges with the outside air through air conditioning, heat pipe and other ways to dissipate heat.

[0004] A high-protection charging pile is disclosed in Chinese patent application CN107750109A published on March 2, 2018, which comprises a cabinet, a front door and a rear door. The cabinet comprises a front cabin and a rear cabin, and the front cabin and the rear cabin are separated. The rear cabin is provided with an AC power distribution area, a DC power distribution area and a power module area. The inner side of the rear door is provided with a heat exchanger corresponding to the DC power distribution area. The heat exchanger comprises an inner circulation area and an outer circulation area which are isolated from each other. The front door is provided with a control interface. The charging pile uses the heat exchanger to exchange heat, and the front cabin is isolated and does not participate in the air circulation of the rear cabin. The external cold air does not pass through the inside of the cabinet. The cabinet is waterproof and sealed, so that the external dust and rainwater cannot enter the inside of the cabinet and cannot damage the parts in the cabinet, thereby prolonging the service life of the parts in the cabinet. However, the cabinet of the charging pile is a single-layer metal plate, and the heat insulation performance is poor. Under the sun, the problem of overheating of the charging pile still exists, which causes the aging of the equipment. Utility model content

[0005] The utility model discloses a kind of high-protection charging piles, to solve the problem of poor heat insulation effect of existing charging pile.

[0006] To achieve the above object, the high-protection charging pile of the utility model adopts the following technical scheme:

[0007] High-protection charging pile, including cabinet, the cabinet includes cabinet support, outer skin and inner partition, cabinet support includes the beam and column corresponding with the edge of outer skin and inner partition, the outer skin and inner partition are fixed and sealed with corresponding beam and column, and heat insulation cavity is surrounded between the outer skin and inner partition.

[0008] Further, the space in the cabinet is divided into a front cabin and a rear cabin, which are separated from each other. The rear cabin is provided with a power module area and a waterproof immersion area. The waterproof immersion area is located below the power module area. The power module area and the waterproof immersion area are separated. The power module area is a cavity surrounded by a sealing plate. The sealing plate is provided with air inlet holes and air outlet holes corresponding to the isolated heat dissipation air duct.

[0009] Further, an isolation plate is provided between the power module area and the waterproof immersion area.

[0010] Further, the inner partition plates on the left and right sides of the cabinet support are made of acrylic or aluminum.

[0011] Further, a backpack-type wire entry structure is provided on the cabinet. The distance between the bottom of the backpack-type wire entry structure and the bottom of the cabinet is not less than 500 mm.

[0012] Further, a backpack door is provided on the outside of the backpack-type wire entry structure. A sealing strip and a water guide groove are provided between the backpack door and the backpack-type wire entry structure.

[0013] Further, the back pack door and the back pack type incoming line structure are connected through a hinge.

[0014] Further, air inlets corresponding to the air inlets of the power module area and air outlets corresponding to the air outlets of the power module area are arranged on the cabinet body.

[0015] Further, a waterproof immersion base is arranged at the bottom of the cabinet body.

[0016] Further, the outer skin and the cabinet body support are welded, and the inner partition plate and the cabinet body support are welded.

[0017] Beneficial effects: the high-protection charging pile is an improved invention. The cabinet of the high-protection charging pile comprises a cabinet body support, an outer skin and an inner partition plate. The outer skin is arranged on the outer side of the cabinet body support, the inner partition plate is arranged on the inner side of the cabinet body support, a heat insulation cavity is formed between the outer skin and the inner partition plate, the air layer between the outer skin and the inner partition plate can effectively reduce the heat transfer, so that the high temperature of the outer skin of the cabinet of the high-protection charging pile under the sun does not easily affect the temperature inside the cabinet, has excellent heat insulation performance, can reduce the aging speed of the parts in the cabinet, and the air layer between the outer skin and the inner partition plate can also absorb and reduce the propagation of sound waves, has good sound insulation effect. The cabinet body support comprises a cross beam and a column, the structure strength of the whole cabinet is higher, deformation is not easy to occur, the contact part between the outer skin and the cabinet body support is sealed, the contact part between the inner partition plate and the cabinet body support is sealed, the sealing effect between the cabinet body support and the outer skin and the inner partition plate is better, and the heat insulation performance of the charging pile is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is an appearance schematic view of an embodiment of the high-protection charging pile of the utility model;

[0019] Figure 2 It is a left view of an embodiment of the high-protection charging pile of the utility model; Figure 1

[0020] Figure 3 It is a right view of an embodiment of the high-protection charging pile of the utility model; Figure 1

[0021] Figure 4 It is a schematic view of the internal structure of the high-protection charging pile of the utility model;

[0022] Figure 5 It is a schematic view of the right side air inlet structure of the high-protection charging pile of the utility model; ​​

[0023] Figure 6 It is a high protection charging pile back bag type wire entry structure schematic view of the utility model;

[0024] Figure 7 It is a hollow heat insulation structure schematic view of the high protection charging pile of the utility model;

[0025] Figure 8 It is a display cabinet body support schematic view of the high protection charging pile of the utility model.

[0026] In the figure: 1, cabinet body; 2, front door; 3, rear door; 4, left side door; 5, right side door; 6, air inlet; 7, air outlet; 8, outer skin; 9, cabinet body support; 10, inner partition; 11, air containing cavity sealing plate; 12, air filter screen; 13, variable frequency cooling fan; 14, charging module; 15, direct current distribution equipment; 16, indicator light; 17, metering and charging unit; 18, card reader; 19, heating module; 20, charging controller; 21, direct current low-voltage power supply; 22, waterproof immersion area; 23, waterproof immersion base; 24, back bag type wire entry structure; 25, air switch; 26, molded case circuit breaker; 27, AC wiring copper bar; 28, temperature and humidity sensor; 29, water immersion sensor. DETAILED DESCRIPTION

[0027] The features and performance of the utility model are further described in detail below in combination with embodiments.

[0028] The high protection charging pile of the utility model sets the cabinet body into a hollow heat insulation structure, so that the cabinet body has good heat insulation performance, so that the charging pile will not cause the problem of easy aging of parts due to overheating inside the cabinet body under the sun exposure, sets a heat exchanger in the cabinet body to discharge the heat generated when the charging pile works, sets a waterproof immersion area in the cabinet body to prevent rainwater from entering the inside of the charging pile and causing equipment damage, and sets a temperature and humidity control system in the cabinet body to realize real-time monitoring of the internal environment of the charging pile.

[0029] In a basic embodiment, as shown in Figure 1 , 7 The high protection charging pile of the utility model includes a cabinet body 1, the cabinet body 1 includes a front door 2, a rear door 3, a left side door 4 and a right side door 5, and the cabinet body 1 further includes an outer skin 8, a cabinet body support 9 and an inner partition 10, the outer skin 8 is laid on the outside of the cabinet body support 9, the inner partition 10 is laid on the inside of the cabinet body support 9, a hollow heat insulation structure is formed between the outer skin 8 and the inner partition 10, and a support column is arranged between the outer skin 8 and the inner partition 10 to make the overall structural strength of the cabinet body 1 higher and less likely to deform, as shown in Figure 8As shown, the cabinet body support 9 includes beams 91 and columns 92 corresponding to the edges of the outer skin and the inner partition, the contact parts (such as the beams and columns at the edges) between the outer skin 8 and the cabinet body support 9 are sealed, and the contact parts (such as the beams and columns at the edges) between the inner partition 10 and the cabinet body support 9 are sealed, so that the sealing effect between the cabinet body support 9 and the outer skin 8 and the inner partition 10 is better, and the heat insulation performance of the charging pile is further improved.

[0030] In a preferred embodiment, as shown in the drawings, Figures 2-5 As shown, the cabinet body 1 is divided into a front cabin and a rear cabin by an aluminum partition, the front cabin is provided with DC power distribution equipment 15, a charging controller 20, a card reader 18, a display screen, an electric meter, an indicator light 16, a DC low-voltage power supply 21 and other components, the rear cabin is provided with a power module area and a waterproof immersion area 22, the power module area and the waterproof immersion area 22 are separated, the rear cabin is also provided with a heat exchanger corresponding to the power module area, the right side door 5 is provided with an air inlet 6 corresponding to the heat exchanger, and the left side door 4 is provided with an air outlet 7 corresponding to the heat exchanger, the power module area is a cavity composed of a charging module 14 mounting support and three metal sealing plates, so that the power module area is separately separated to improve the sealing effect of the power module area, the metal sealing plates are provided with air inlet and outlet holes corresponding to the air inlet and outlet of the isolated heat dissipation air duct, and the waterproof immersion area 22 below the power module area can keep a certain distance between the power module area and the bottom plate of the cabinet body 1, so as to prevent rainwater from entering the power module area and causing charging pile failure.

[0031] In a preferred embodiment, a partition is arranged between the waterproof immersion area 22 and the power module area in the rear cabin of the charging pile, the waterproof immersion area 22 and the power module area are separated by the partition, the power module area is above the waterproof immersion area 22, even if water enters the rear cabin of the charging pile, the power module area will not be damaged, ensuring the safe and stable operation of the power module area, and further improving the waterproof effect of the charging pile. In other embodiments, a sealing strip can be arranged at the position of the partition between the power module area and the waterproof immersion area 22 to further prevent water from entering the power module area.

[0032] An isolation cooling duct is installed in the rear compartment of cabinet 1. The isolation cooling duct in the charging pile includes the power module area, the air inlet 6 on the right door 5 of the charging pile, and the air outlet 7 on the left door 4 of the charging pile. The charging module 14 is also installed inside cabinet 1. When the charging pile is working, the charging module 14 draws cold air from the outside through the air inlet 6 on the right door 5. The cold air is filtered and enters the air inlet 6 of the charging module 14. With the help of the cooling fan of the charging module 14 and the variable frequency cooling fan 13 installed on the left door 4, the cold air flows through the interior of the charging module 14 and carries away the heat. In other embodiments, the heat dissipation device in cabinet 1 can adopt liquid cooling. A heat dissipation system consisting of a water pump, water tank, fan and radiator is installed in the charging pile. The water pump drives the liquid circulation to cool down the electrical equipment inside the charging pile and charging gun. The charging gun or charging module of the charging pile is usually replaced with a liquid cooling device. The liquid cooling charging gun has a special liquid circulation channel between the cable and the charging gun. The coolant is circulated by the water pump to effectively remove the heat generated during the charging process.

[0033] In a preferred embodiment, the inner partitions 10 on the left and right sides of the cabinet support 9 are made of acrylic sheets. Using acrylic sheets makes it easy to process the left and right sides of the cabinet and reduces manufacturing costs. In other embodiments, the inner partitions 10 on the left and right sides of the cabinet support 9 can be made of aluminum sheets. Aluminum sheets are low in cost and easy to process, which can reduce the manufacturing cost of the charging pile.

[0034] In a preferred embodiment, such as Figure 6 As shown, a backpack-style cable entry structure 24 is installed on the outside of the rear door 3 of the charging pile. The distance between the bottom of the backpack-style cable entry structure 24 and the bottom of the cabinet 1 is not less than 500mm. An air switch 25, a charging pile molded case circuit breaker 26, and an AC wiring busbar 27 are installed inside the backpack-style cable entry structure 24 to increase the AC power distribution height above the ground, prevent rainwater intrusion, and avoid short circuit damage to equipment and accidental injury to personnel due to leakage. A cable entry hole is provided at the bottom of the backpack-style cable entry structure 24, through which the AC power supply cable of the charging pile enters the backpack-style cable entry structure 24 and connects to the molded case circuit breaker 26 via the AC wiring busbar 27, then supplies power to the charging module 14 via the AC busbar. In other embodiments, the air switch 25, the charging pile molded case circuit breaker 26, and the AC wiring busbar 27 can be installed inside the charging pile cabinet 1. A cable entry hole is provided on the cabinet 1, through which the AC power supply cable of the charging pile enters the charging pile to supply power to the charging module 14.

[0035] In a preferred embodiment, a backpack door is arranged outside the backpack-type wire entry structure 24, and a sealing strip and a water guide groove are arranged between the backpack door and the body of the backpack-type wire entry structure 24. The sealing effect of the backpack door and the backpack-type wire entry structure 24 can be achieved under the action of the backpack door and the sealing strip, so that rainwater and dust in the air cannot enter the inside of the backpack-type wire entry structure 24, thereby preventing damage to the internal components of the charging pile. The water guide groove can make the rainwater accumulated between the backpack door and the backpack-type wire entry structure 24 flow out smoothly, further improving the waterproof capability of the backpack-type wire entry structure 24.

[0036] In a preferred embodiment, the backpack door and the backpack-type wire entry structure 24 are connected by a hinge, which can facilitate the opening and closing of the backpack door. When maintenance is needed inside the backpack-type wire entry structure 24, the backpack door can be easily opened, which is more convenient for maintenance of internal components of the backpack-type wire entry structure 24. In other embodiments, the backpack door can be connected to the body of the backpack-type wire entry structure 24 by bolts. The backpack door can be fastened to the outside of the backpack-type wire entry structure 24 by bolts, which can make the sealing effect between the backpack door and the backpack-type wire entry structure 24 better.

[0037] In a preferred embodiment, the left side door 4 of the charging pile is provided with an air outlet 7 corresponding to the air outlet hole of the power module area, and the right side door 5 is provided with an air inlet 6 corresponding to the air inlet hole of the power module area. An air filter screen 12 is arranged at the air inlet 6 and the air outlet 7. An air containing cavity is left between the air inlet 6 and the air filter screen 12, and the air containing cavity is sealed by an air containing cavity sealing plate 11. When the charging pile is cooling and ventilating, the large particles and other foreign matters in the air can be prevented from entering the inside of the charging pile, which can prevent damage to the internal components of the charging pile or cause short circuit of the elements, and can prolong the service life of the charging pile. In other embodiments, air filter cotton can be arranged at the air inlet 6 while the air filter screen 12 is arranged at the air inlet 6 and the air outlet 7. The dust in the air can be prevented from entering the inside of the charging pile through the air inlet 6 when the charging pile is inhaling, which can further prolong the service life of the charging pile.

[0038] In a preferred embodiment, a waterproof immersion base 23 is arranged at the bottom of the cabinet body 1. Under the joint action of the waterproof immersion base 23 and the waterproof immersion area 22, the lower part of the charging pile has good waterproof effect, which can prevent the accumulated water from entering the inside of the charging pile and causing damage to the internal components of the charging pile. The waterproof immersion base 23 arranged at the bottom of the charging pile has a certain height, so that the accumulated water cannot easily overflow the base, and the space between the body of the charging pile and the ground is separated, which can prevent the accumulated water from entering the inside of the charging pile through the bottom of the charging pile, thereby prolonging the service life of the charging pile. In other embodiments, no base is arranged at the bottom of the charging pile, and the bottom of the charging pile can be well sealed to prevent the accumulated water from entering the inside of the charging pile.

[0039] In a preferred embodiment, as shown in Figure 7 In a preferred embodiment, as shown in

[0040] In a preferred embodiment, as shown in

[0041] In a preferred embodiment, as shown in

[0042] The above merely describes preferred embodiments of the present application, and is not used to limit the present application, and the patent protection scope of the present application is subject to the claims, and any equivalent structural changes made according to the content of the specification and drawings of the present application should also be included in the protection scope of the present application.

Claims

1. A high-protection charging pile comprising a cabinet body, characterized in that, The cabinet body comprises a cabinet body support, an outer skin and an inner partition plate, the cabinet body support comprises cross beams and upright columns corresponding to edges of the outer skin and the inner partition plate, the outer skin and the inner partition plate are fixedly and sealingly connected with the corresponding cross beams and upright columns, and a heat insulation cavity is formed between the outer skin and the inner partition plate.

2. The high-protection charging pile of claim 1, wherein, The inner space of the cabinet body is divided into a front cabin and a rear cabin, a power module area and a waterproof immersion area are arranged in the rear cabin, the waterproof immersion area is located below the power module area, the power module area and the waterproof immersion area are separated, the power module area is a cavity surrounded by a sealing plate, and the sealing plate is provided with air inlet holes and air outlet holes corresponding to an isolation heat dissipation air duct.

3. The high-protection charging pile according to claim 2, characterized in that, An isolation plate is arranged between the power module area and the waterproof immersion area.

4. The high-protection charging pile according to any one of claims 1-3, characterized in that, The inner partition plates on the left and right sides of the cabinet body support are made of acrylic plates or aluminum plates.

5. The high-protection charging pile according to any one of claims 1-3, characterized in that, A backpack-type wire inlet structure is arranged on the cabinet body, and the distance between the bottom of the backpack-type wire inlet structure and the bottom of the cabinet body is not less than 500 mm.

6. The high-protection charging pile of claim 5, characterized in that, A backpack door is arranged outside the backpack-type wire inlet structure, and a sealing strip and a water guide groove are arranged between the backpack door and the backpack-type wire inlet structure.

7. The high-protection charging pile according to claim 6, characterized in that, The backpack door and the backpack-type wire inlet structure are connected through a hinge.

8. The high-protection charging pile according to claim 2 or 3, characterized in that, An air inlet is arranged on one side of the cabinet body corresponding to the air inlet hole of the power module area, and an air outlet is arranged on the other side of the cabinet body corresponding to the air outlet hole of the power module area, and air filter screens are arranged on the cabinet body at positions corresponding to the air inlet and the air outlet.

9. The high-protection charging pile according to any one of claims 1-3, characterized in that, A waterproof immersion base is arranged at the bottom of the cabinet body.

10. The high-protection charging pile according to any one of claims 1-3, characterized in that, The outer skin and the cabinet body support are connected through welding, and the inner partition plate and the cabinet body support are connected through welding.

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