Underground matrix type flexible charging pile

Abstract

The utility model discloses an underground matrix type flexible charging pile, and relates to the field of new energy automobile related facilities. The underground matrix type flexible charging pile comprises a plurality of charging piles, a charging pile body and a plurality of cable racks, the plurality of charging piles are arranged in an overground mounting area; the charging pile body is arranged in an underground mounting area and is electrically connected with the plurality of charging piles through a plurality of charging cables in a plurality of cable racks penetrating through the ground of an overground mounting area; wherein the overground installation area is located above the ground of the charging station, and the underground installation area is located below the ground of the charging station. According to the underground matrix type flexible charging pile, the effective charging area on the ground can be fully utilized, the cable laying amount is reduced, and charging accidents are effectively avoided.

Description

Technical Field

[0001] This application relates to the field of new energy vehicle related facilities, and more specifically, to an underground matrix flexible charging pile stack. Background Art

[0002] When the power of a new energy vehicle is insufficient, a charging pile of a flexible charging pile stack can be used for charging.

[0003] In the related art, the flexible charging pile stack is installed on the ground of the installation area, and the charging pile stack body is connected to a plurality of charging piles through laying charging cables. Since both the charging pile stack body and the charging piles occupy a certain amount of space, the effective charging area is compressed. If the flexible charging pile stack is built underground, there are problems such as high construction cost and inconvenient charging. If the charging station area is large, the amount of cable laying from the charging pile stack body to each charging pile will be very large; and due to the flexible charging pile being exposed to the sun in summer or at low temperature in winter, it will cause the flexible charging pile to be unstable and even result in a charging accident. Utility Model Content

[0004] In view of this, the embodiments of this application are committed to providing an underground matrix flexible charging pile stack to solve the problems of low utilization rate of the charging area, large amount of cable laying, and easy environmental influence on charging components existing in the current flexible charging pile stack.

[0005] In a first aspect, this specification provides an underground matrix flexible charging pile stack, including: a plurality of charging piles, a charging pile stack body, and a plurality of cable racks;

[0006] A plurality of charging piles are all arranged in the above-ground installation area;

[0007] The charging pile stack body is arranged in the underground installation area, and is respectively electrically connected to a plurality of charging piles through a plurality of charging cables in a plurality of cable racks that penetrate the ground of the above-ground installation area;

[0008] Among them, the above-ground installation area is located above the ground of the charging station, and the underground installation area is located below the ground of the charging station.

[0009] According to the first aspect, in a possible implementation manner, the underground matrix flexible charging pile stack further includes a centralized control terminal, and the centralized control terminal is arranged on the box body of the charging pile stack body, and is respectively electrically connected to a plurality of charging piles and the charging pile stack body through control signal cables.

[0010] According to the first aspect, in a possible implementation manner, the upper opening of each of the plurality of cable racks is not less than 10 centimeters higher than the ground of the above-ground installation area, and the chassis of each of the plurality of charging piles is sleeved at the upper opening, with a rubber pad padded below, and is fixed by fastening bolts;

[0011] There is a clearance of not less than 1 meter above the charging pile body, and multiple charging pile bodies can be set. The distance between one of the multiple charging pile bodies and the other charging pile bodies among the multiple charging pile bodies is not less than 1 meter.

[0012] According to the first aspect, in a possible implementation manner, a moisture-proof layer is laid on the ground below the underground installation area, and a drainage trough is provided. The drainage trough is arranged at a position far from the underground installation area and is connected to the underground drainage pipe network.

[0013] According to the first aspect, in a possible implementation manner, a plurality of wire outlet holes are provided above the charging pile body. A plurality of charging piles, a plurality of wire outlet holes, a plurality of charging cables, and a plurality of cable racks correspond one by one. The plurality of cable racks are vertically arranged between the plurality of charging piles and the charging pile body.

[0014] According to the first aspect, in a possible implementation manner, a video monitoring and fire alarm system is provided in the underground installation area. The video monitoring and fire alarm system is electrically connected to the centralized control terminal. A ventilation and smoke exhaust device is provided above the underground installation area. The ventilation and smoke exhaust device is arranged at the ventilation opening and is electrically connected to the video monitoring and fire alarm system.

[0015] According to the first aspect, in a possible implementation manner, the ventilation opening is opened at a position far from the above-ground installation area. The upper air outlet of the ventilation opening is not less than 50 centimeters higher than the ground of the above-ground installation area, and a rain shelter is installed above the upper air outlet.

[0016] According to the first aspect, in a possible implementation manner, an environmental monitoring system is provided in the underground installation area. The environmental monitoring system includes a temperature sensor and a humidity sensor and is electrically connected to the centralized control terminal.

[0017] According to the first aspect, in a possible implementation manner, a maintenance lift is provided in the underground installation area, and a lighting system is provided.

[0018] According to the first aspect, in a possible implementation manner, the charging pile body is a cuboid, and the height of the cuboid is less than the length.

[0019] Compared with the prior art, the beneficial effects of the present application are as follows:

[0020] Different from the prior art, the underground matrix flexible charging pile provided by the present application includes: a plurality of charging piles, a charging pile body, and a plurality of cable racks; the plurality of charging piles are all arranged in the above-ground installation area; the charging pile body is arranged in the underground installation area and is electrically connected to the plurality of charging piles respectively through a plurality of charging cables in the plurality of cable racks that penetrate the ground of the above-ground installation area; wherein, the above-ground installation area is located above the ground of the charging station, and the underground installation area is located below the ground of the charging station. By arranging the plurality of charging piles in the above-ground installation area located above the ground of the charging station and arranging the charging pile body in the underground installation area located below the ground of the charging station, the underground matrix flexible charging pile can make full use of the effective charging area on the ground. The plurality of charging piles and the charging pile body are electrically connected through the charging cables in the cable racks that penetrate the ground of the above-ground installation area, which can reduce the cable laying distance from the charging pile body to the plurality of charging piles, thereby reducing the amount of cable laying. At the same time, the flexible charging pile can utilize the characteristics of warm in winter and cool in summer underground to keep the electronic components of the charging pile body in an ideal working condition, avoiding the instability of the charging pile body caused by the exposure in summer and the low temperature in winter, and effectively avoiding the occurrence of charging accidents. Description of the Drawings

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the provided drawings.

[0022] Figure 1 It is a schematic diagram of the overall structure of the underground matrix flexible charging pile provided by the embodiment of the present application;

[0023] Figure 2 It is a schematic diagram of the installation of the charging pile chassis provided by the embodiment of the present application.

[0024] Reference numerals: 1, charging pile body; 2, outlet hole; 3, cable rack; 4, charging pile; 5, maintenance lift; 6, environmental monitoring system; 7, video monitoring and fire alarm system; 8, moisture-proof layer; 9, ventilation and smoke exhaust device; 10, drainage trough; 11, lighting system; 12, charging pile chassis; 13, rubber pad; 14, fastening bolt; 15, opening above the cable rack. Detailed Embodiments

[0025] Unless otherwise defined, the technical terms or scientific terms used in the embodiments of this specification shall have the ordinary meanings as understood by those of ordinary skill in the art to which this specification pertains. The terms "first", "second" and similar terms used in the embodiments of this specification do not denote any order, quantity or importance, but are merely used to avoid confusion of components.

[0026] Unless the context otherwise requires, throughout this specification, "a plurality of" means "at least two", and "comprising" is interpreted as open and inclusive, that is, "including, but not limited to". In the description of this specification, the terms "one embodiment", "some embodiments", "exemplary embodiments", "examples", "specific examples" or "some examples", etc. are intended to indicate that specific features, structures, materials or characteristics related to the embodiment or example are included in at least one embodiment or example of this specification. The schematic representations of the above terms do not necessarily refer to the same embodiment or example.

[0027] Next, the technical solutions in the embodiments of this specification will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of this specification. Obviously, the described embodiments are only a part of the embodiments of this specification, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this specification without creative efforts shall fall within the scope of protection of this specification.

[0028] As Figure 1 shown, it is a schematic diagram of the overall structure of the underground matrix flexible charging pile provided by the embodiment of the present application. The dotted line in the figure represents a cross-section because the underground installation area is not fully presented. An underground matrix flexible charging pile provided by the present invention includes: a plurality of charging piles 4, a charging pile body 1 and a plurality of cable racks 3; the plurality of charging piles 3 are all arranged in the above-ground installation area; the charging pile body 1 is arranged in the underground installation area and is electrically connected to the plurality of charging piles 4 respectively through a plurality of charging cables in the plurality of cable racks 3 that penetrate the ground of the above-ground installation area; wherein, the above-ground installation area is located above the ground of the charging station, and the underground installation area is located below the ground of the charging station.

[0029] Flexible charging stacks can be classified into split-type flexible charging stacks and matrix-type flexible charging stacks according to product type. Split-type flexible charging stack: This type of charging stack may consist of multiple independent modules. Each module can work independently, but can be uniformly scheduled by the system to achieve flexible power distribution. Matrix-type flexible charging stack: Its core is the power unit matrix control, and a charging station is built through the integration of fully digital intelligent charging modules. The matrix-type flexible charging stack can dynamically allocate the charging power of all electric vehicles in the station according to the charging requirements provided by the electric vehicle BMS, meet the needs of the user group, and improve the energy conversion efficiency and equipment utilization rate of the charging facilities. The charging pile, that is, the charging terminal, is a component used for information interaction, energy transmission, and charging between the flexible charging stack and the electric vehicle, and can include components such as a gun-mounted column, a charging gun, a display screen, a card reader, and an emergency stop switch. A charging QR code can also be printed on it. When the charging pile is in a dangerous state, the power supply is cut off by pressing the emergency stop switch to stop the equipment from operating, so as to protect the safety of personnel and equipment. The card reader is used to start charging by swiping the card. The charging stack body is the core component for realizing energy conversion and power distribution. Its input can be alternating current or direct current, and it can include components such as a chassis, a charging module, and a power distribution unit. The charging stack body is electrically connected to multiple charging piles through multiple charging cables. The charging stack body can be connected to multiple charging piles, and the number of the charging stack body and the charging piles can be set according to requirements. When the input of the flexible charging stack is alternating current, there are corresponding requirements for the frequency, voltage fluctuation range, voltage asymmetry degree, and voltage distortion rate of the input power supply. For example, the voltage frequency change range should not exceed ±2% of the power frequency, the AC input voltage fluctuation range is 380±57V, the AC input voltage asymmetry degree should not exceed 5%, and the charging stack should be able to work normally when the total harmonic distortion rate of the input voltage does not exceed 10%.

[0030] In a conventional flexible charging stack of a charging station, the charging stack body and the charging piles are usually arranged in a straight line, with the charging stack body in the middle and multiple charging piles arranged on both sides of the charging stack body. In this application, by arranging multiple charging piles in an above-ground installation area above the ground of the charging station and the charging stack body in a below-ground installation area below the ground of the charging station, the effective charging area on the ground can be fully utilized. The multiple charging piles and the charging stack body are electrically connected through the charging cables in the cable rack that penetrates the ground of the above-ground installation area, which can reduce the cable laying distance from the charging stack body to the multiple charging piles, thereby reducing the cable laying amount. At the same time, this flexible charging stack can utilize the characteristics of warm in winter and cool in summer underground to keep the electronic components of the charging stack body in an ideal working condition, avoid the instability of the charging stack body caused by the exposure in summer and the low temperature in winter, and effectively avoid the occurrence of charging accidents. This flexible charging stack can be set at a higher place or a place without the risk of waterlogging to avoid possible flood risks.

[0031] In order to effectively control the flexible charging stack, corresponding settings are made to the centralized control terminal of the flexible charging stack in this application, that is, the centralized control terminal is set on the box body of the charging stack body and is electrically connected to multiple charging piles and the charging stack body respectively through control signal cables. The centralized control terminal is used to realize human-computer interaction, charging, data uploading, charging strategy conversion, etc. Setting the centralized control terminal in the underground installation area is beneficial to the stability of electronic components. In addition, the centralized control terminal can lead out the control signal cable through the cable rack and be electrically connected to the charging pile. The charging cable and the control signal cable can be of flame-retardant type to effectively avoid the occurrence of fire.

[0032] To ensure the stable operation and later maintenance of the flexible charging stack, this application also designs the installation of the charging pile and the installation of the charging stack body: the upper opening 15 of each of the multiple cable racks is not less than 10 cm higher than the ground of the above-ground installation area. The chassis 12 of each of the multiple charging piles is sleeved at the upper opening, with a rubber pad 13 placed below and fixed by a fastening bolt 14; there is a clearance of not less than 1 m above the charging stack body, and it can be set to multiple. The distance between one of the multiple charging stack bodies and the other charging stack bodies among the multiple charging stack bodies is not less than 1 m. As Figure 2 shown, it is the installation schematic diagram of the charging pile chassis provided by the embodiment of this application. With such a design, it can not only effectively prevent rainwater or ground water from entering the underground installation area, but also the clearance above the charging stack body leaves enough space for maintenance, and the distance between multiple charging stack bodies ensures the maintenance requirements and heat dissipation needs.

[0033] To effectively prevent water and moisture, a moisture-proof barrier 8 is laid on the ground below the underground installation area, and a drainage trough 10 is provided. The drainage trough 10 is set at a position far from the underground installation area and is connected to the underground drainage pipe network. Through the above design, risks such as product moisture and waterlogging can be avoided. In addition, the underground installation area can be constructed in a way similar to the subway station using the method of pouring reinforced concrete externally, or other feasible underground space construction methods to prevent water seepage from above the charging station ground and affect the stable operation of the product.

[0034] To make the product specifications reasonable and further reduce the cable laying amount, this application further designs the connection between the charging stack body and multiple charging piles: multiple outlet holes 2 are provided above the charging stack body. The multiple charging piles 4, the multiple outlet holes 2, the multiple charging cables and the multiple cable racks 3 correspond one by one, and the multiple cable racks are vertically arranged between the multiple charging piles and the charging stack body. With such a design, not only is the product more regular and easy to maintain, but also the cable laying amount is further reduced.

[0035] As a preferred solution, a video surveillance and fire alarm system 7 is provided in the underground installation area. The video surveillance and fire alarm system 7 is electrically connected to the centralized control terminal. A ventilation and smoke exhaust device 9 is provided above the underground installation area. The ventilation and smoke exhaust device 9 is arranged at the ventilation opening and is electrically connected to the video surveillance and fire alarm system 7. The video surveillance and fire alarm system can be configured with an infrared light supplement function to enhance the surveillance effect. In addition, foam fire extinguishers can be arranged in the underground installation area to extinguish fires in case of a fire. After a fire occurs, the video surveillance and fire alarm system can trigger an alarm, so that the centralized control terminal shuts off the power input and exhausts air through the ventilation and smoke exhaust device to carry out fire extinguishing operations. By arranging the video surveillance and fire alarm system and the ventilation and smoke exhaust device, the equipment in the underground installation area can be effectively monitored to prevent theft, fires, etc.

[0036] As a preferred solution, the ventilation opening is arranged at a position far from the above-ground installation area. The upper air outlet of the ventilation opening is not less than 50 cm higher than the ground of the above-ground installation area, and a rain shelter is installed above the upper air outlet. Through the above design, rainwater, ground accumulated water, etc. can be effectively prevented from entering the underground installation area.

[0037] As a preferred solution, an environmental monitoring system 6 is provided in the underground installation area. The environmental monitoring system 6 includes a temperature sensor and a humidity sensor and is electrically connected to the centralized control terminal. The suitable working environment of the flexible charging stack is generally a temperature not lower than -20°C and not higher than 50°C, the daily average relative humidity not greater than 95%, and the monthly average relative humidity not greater than 90%. In addition, the equipment installation and use location should have no strong vibration and impact, no strong electromagnetic interference, and the vertical inclination of the equipment installation should not exceed 5%, etc. Through the environmental monitoring system, the environmental conditions in the underground installation area can be effectively monitored. For example, when the humidity is relatively high, air can be exhausted to reduce the humidity, and when the temperature is relatively high, it can be checked whether there are accidents such as fires.

[0038] As a preferred solution, a maintenance lift 5 is provided in the underground installation area, and a lighting system 11 is provided. Through this design, it is convenient for initial equipment installation and later equipment maintenance, and improves the safety and stability of the equipment.

[0039] As a preferred solution, the charging stack body is a cuboid, and the height of the cuboid is less than the length. Making the charging stack body a cuboid with the height of the cuboid less than the length (and the width also less than the length) is beneficial to reducing the excavation depth and volume of the underground space, thereby reducing the construction cost. In addition, the charging stack body of this shape is also beneficial to the installation and maintenance of the product.

[0040] The underground matrix flexible charging pile provided by the present application can reduce the above-ground occupied area of the charging equipment and make full use of the effective charging area above the ground by arranging multiple charging piles in the above-ground installation area located above the ground of the charging station and the charging pile body in the underground installation area located below the ground of the charging station. The multiple charging piles and the charging pile body are electrically connected through the charging cables in the cable rack that penetrates the ground of the above-ground installation area, which can make the multiple charging piles of the same charging pile body relatively gather and reduce the cable laying distance from the charging pile body to the multiple charging piles, thereby reducing the cable laying amount. At the same time, this flexible charging pile can utilize the characteristics of warm in winter and cool in summer underground to keep the electronic components of the charging pile body in an ideal working condition, avoid the instability of the charging pile body caused by the exposure in summer and the low temperature in winter, and effectively avoid the occurrence of charging accidents.

[0041] Regarding the above description of the disclosed embodiments, the features recorded in each embodiment in this specification can be replaced or combined with each other, enabling those skilled in the art to implement or use the present application. The above are only the preferred embodiments of the present invention and do not impose any formal limitations on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make many possible changes and modifications to the technical solution of the present invention, or modify it into an equivalent embodiment with equivalent changes, without departing from the scope of the technical solution of the present invention. Therefore, any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the protection of the technical solution of the present invention.

Claims

1. An underground matrix flexible charging pile, characterized in that Including: Multiple charging piles, a charging stack body, and multiple cable racks; The multiple charging piles are all arranged in the ground installation area; The charging stack body is arranged in the underground installation area and is electrically connected to the multiple charging piles respectively through multiple charging cables among the multiple cable racks that penetrate the ground of the ground installation area; Wherein, the ground installation area is above the ground of the charging station, and the underground installation area is below the ground of the charging station.

2. The underground matrix flexible charging pile according to claim 1, characterized in that It further includes a centralized control terminal, which is arranged on the box body of the charging stack body and is electrically connected to the multiple charging piles and the charging stack body respectively through control signal cables.

3. The underground matrix flexible charging pile according to claim 1, characterized in that, The upper opening of each of the multiple cable racks is not less than 10 cm higher than the ground of the ground installation area. The chassis of each of the multiple charging piles is sleeved at the upper opening, with a rubber pad underneath and fixed by fastening bolts; There is a clearance of not less than 1 m above the charging stack body, and multiple charging stack bodies can be arranged. The distance between one of the multiple charging stack bodies and the other charging stack bodies among the multiple charging stack bodies is not less than 1 m.

4. The underground matrix flexible charging pile according to claim 1, characterized in that, The ground below the underground installation area is paved with a moisture-proof layer and is provided with a drainage groove. The drainage groove is arranged at a position away from the underground installation area and is communicated with the underground drainage pipe network. The underground installation area is also equipped with a foam fire extinguisher.

5. The underground matrix flexible charging pile according to any one of claims 1-4, characterized in that, Multiple wire outlet holes are arranged above the charging stack body. The multiple charging piles, the multiple wire outlet holes, the multiple charging cables, and the multiple cable racks correspond one by one. The multiple cable racks are vertically arranged between the multiple charging piles and the charging stack body.

6. The underground matrix flexible charging pile according to claim 2, wherein, The underground installation area is provided with a video monitoring and fire alarm system. The video monitoring and fire alarm system is electrically connected to the centralized control terminal. A ventilation and smoke exhaust device is arranged above the underground installation area. The ventilation and smoke exhaust device is arranged at the ventilation opening and is electrically connected to the video monitoring and fire alarm system.

7. The underground matrix flexible charging stack according to claim 6, characterized in that, The ventilation opening is opened at a position away from the ground installation area. The upper air outlet of the ventilation opening is not less than 50 cm above the ground, and a rain shelter is installed above the upper air outlet.

8. The underground matrix flexible charging stack according to claim 2, characterized in that, The underground installation area is provided with an environmental monitoring system. The environmental monitoring system includes a temperature sensor and a humidity sensor and is electrically connected to the centralized control terminal.

9. The underground matrix flexible charging pile according to any one of claims 1-4, characterized in that The underground installation area is provided with a maintenance lift and a lighting system.

10. The underground matrix flexible charging stack according to any one of claims 1-4, characterized in that The charging stack body is a cuboid, and the height of the cuboid is less than the length.

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