CN113500932A

CN113500932A - Fault protection system based on new energy charging pile

Info

Publication number: CN113500932A
Application number: CN202110816934.2A
Authority: CN
Inventors: 王远; 汪繁荣
Original assignee: Hubei University of Technology
Current assignee: Hubei University of Technology
Priority date: 2021-07-20
Filing date: 2021-07-20
Publication date: 2021-10-15

Abstract

The invention belongs to the technical field of vehicle charging, in particular to a fault protection system based on a new energy charging pile. For the wireless charging in the prior art, only charging equipment is directly laid under the existing parking space without an effective heat dissipation structure. During the charging process, especially in the case of high-speed charging, the car and the charging device will become hot, and the high temperature is not conducive to the maintenance of the device and the car. Technical problem, the following solution is now proposed, including a control box and a wireless charging pile disposed on the lower side of the parking space, and a heat dissipation system including an auxiliary heat dissipation mechanism disposed on the surface of the parking space. The present invention can effectively dissipate heat in the charging area when the vehicle is charged through the auxiliary heat dissipation mechanism arranged on the surface of the parking space, which is beneficial to the maintenance of the wireless charging pile and the vehicle, avoids local high temperature, and improves the safety of the charging process.

Description

Fault protection system based on new energy charging pile

Technical Field

The invention relates to the technical field of automobile charging, in particular to a fault protection system based on a new energy charging pile.

Background

The charging pile (Chargingpile) refers to a charging device for providing a charging service for an electric vehicle. It mainly is divided into the electric pile and the electric pile is filled to the floor type, and the electric pile is filled to the floor type is fit for installing in the parking stall that is not close to the wall body. The wall-hanging fills electric pile and is fit for installing in the parking stall that is close to the wall body, no matter fill electric pile or wall-hanging fill electric pile for the console mode, its charging mode of all mainly taking timing, meter electric degree, meter amount of money can regard as citizen's electricity purchasing terminal. Improve public electric pile's efficiency and practicality simultaneously. The charging pile of the electric automobile is used as an energy supply device of the electric automobile, and the charging performance of the charging pile is related to the service life and the charging time of the battery pack. This is also one of the most important concerns for consumers before purchasing electric cars. The realization of quick, efficient, safe and reasonable electric quantity supply to the power battery is a basic principle of electric automobile charger design, and in addition, the applicability of the charger to various power batteries is also considered.

The electric automobile wireless charging technology transmits electric energy to a vehicle receiving end electric energy picking mechanism which runs on the ground within a certain range in a high-frequency alternating magnetic field mode through a power supply guide rail buried under the ground, and then supplies power to vehicle-mounted energy storage equipment, so that an electric automobile can carry a small number of battery packs, the endurance mileage of the electric automobile is prolonged, and meanwhile, the electric energy supply change is safe and convenient. The main parameter indexes of the dynamic wireless power supply technology include electric energy transmission distance, power, efficiency, coupling mechanism lateral shifting adaptability, electromagnetic compatibility and the like. Therefore, the development of a dynamic wireless power supply system with high power, high efficiency, strong lateral movement adaptability, low electromagnetic radiation and moderate cost becomes a current main research hotspot of various large research institutions at home and abroad. For the wireless power transmission technology for EV, the primary winding and the secondary winding of the system are respectively arranged outside and inside the vehicle, and power transmission is carried out under the coupling effect of a high-frequency magnetic field. Compared with a contact charging mode, the wireless power transmission technology has many advantages: because the insulation structure is completely insulated, high-voltage electric shock danger can be avoided, short circuit and electric leakage danger can be avoided, and contact electric sparks can not be generated; the interface standardization and unification are facilitated, and the automation and unmanned operation are facilitated; the device has no mechanical wear and corresponding maintenance problems, and can adapt to various severe environments and weathers; the equipment is buried under the parking space, so that additional land area is not occupied, and a large amount of land resources are saved; manual operation is not needed, and the charging and stopping can be carried out at any time, so that potential safety hazards caused by manual intervention are reduced; the repacking is convenient, utilizes current parking stall, directly lays equipment in current parking stall below.

Among the prior art, wireless charging only lays the battery charging outfit in current parking stall below directly, and does not set up effectual heat radiation structure, and in the charging process, especially under the condition of charging at a high speed, the car can generate heat with this battery charging outfit and send out the scald, and high temperature is unfavorable for the maintenance of this equipment and car, and the local high temperature that lasts also can aggravate its potential safety hazard simultaneously, leads to the trouble of charging easily.

Disclosure of Invention

Based on the technical problems that in the prior art, charging equipment is only directly laid below an existing parking space in a wireless charging mode, an effective heat dissipation structure is not arranged, in the charging process, particularly under the condition of high-speed charging, an automobile and the charging equipment can generate heat and scald, high temperature is not beneficial to maintenance of the equipment and the automobile, meanwhile, potential safety hazards can be aggravated due to local continuous high temperature, and charging faults are easily caused.

The fault protection system based on the new energy charging pile comprises a control box and a wireless charging pile arranged on the lower side of a parking space, wherein the control box is electrically connected with the wireless charging pile, a high-frequency electric energy transmitting device is arranged in the wireless charging pile and is electrically connected with a high-frequency power supply, the high-frequency electric energy transmitting device transmits electricity to a battery charging management system in a vehicle through a high-frequency electric energy receiving device arranged in the vehicle, and the fault protection system further comprises a heat dissipation system, wherein the heat dissipation system comprises an auxiliary heat dissipation mechanism arranged on the surface of the parking space.

Preferably, supplementary heat dissipation mechanism includes fixed connection in the heat-conducting plate on parking stall surface and the multirow fin of even fixed connection in the heat-conducting plate upper end, the heat-conducting plate is located the wireless electric pile of charging and just inclines.

Preferably, the auxiliary heat dissipation mechanism further comprises a fixed seat and a horizontal cooling fan fixedly connected to the fixed seat, the wind direction of the horizontal cooling fan faces the heat dissipation fins, and the gap between two adjacent rows of heat dissipation fins is arranged along the wind direction of the horizontal cooling fan.

Preferably, the upper end of the side of the fixed seat close to the heat sink is provided with an inclined surface, and the inclined surface is fixedly connected with an inclined cooling fan.

Preferably, a cooling mechanism is arranged between the fixed seat and the heat conducting plate.

Preferably, cooling body includes the cooler bin, erects cooling rack and oblique cooling rack, cooler bin upper end joint has the case lid, cooler bin inner wall fixedly connected with handle, be provided with the recess that supplies the cooler bin to place on the parking stall, be provided with on the case lid and supply to erect the jack that the cooling rack was inserted and put, erect cooling rack lower extreme and insert to the cooler bin in the bottom, oblique cooling rack fixed connection is in erecting cooling rack upper end, erect cooling rack and oblique cooling rack surface and all wrap up the sponge cover, and the dense fluff that absorbs water of sponge cover surface cloth.

Preferably, a pair of vehicle stopping-assistant devices is arranged on the surface of the parking space, and the pair of vehicle stopping-assistant devices are respectively arranged on two sides of the auxiliary heat dissipation mechanism.

Preferably, the vehicle helps and stops device includes spacing seat, compression spring and limit round slider, spacing seat fixed connection is on the parking stall surface, compression spring fixed connection is between spacing seat and limit round slider, the compression spring outside cover is equipped with spacing pipe, and spacing pipe both ends respectively with spacing seat and limit round slider fixed connection, the terminal surface that the limit round slider kept away from spacing seat sets up to concave type arc curved surface.

Preferably, a pressure sensor is connected between the compression spring and the limiting seat, the pressure sensor adopts a film sensor, and a voice prompt device is connected to the side end of the limiting seat.

Preferably, the lower end of the wheel limiting sliding block is fixedly connected with a roller, the surface of the concave arc-shaped curved surface of the wheel limiting sliding block is provided with a plurality of spherical grooves, and the spherical grooves are connected with directional balls capable of rolling.

The beneficial effects of the invention are as follows:

1. this electric pile's fault protection system fills based on new forms of energy, through setting up in the supplementary heat dissipation mechanism on parking stall surface, supplementary heat dissipation mechanism includes fixed connection in the heat-conducting plate on parking stall surface and the multirow fin of even fixed connection in the heat-conducting plate upper end, the heat-conducting plate is located the direct upside of wireless charging stake, can effectively dispel the heat to the charging area when the vehicle charges, be favorable to the maintenance of wireless charging stake and vehicle, avoid local high temperature, improve the security of charging process.

2. This fill electric pile's fault protection system based on new forms of energy, through the fixing base and the horizontal cooling fan of fixed connection on the fixing base that set up, horizontal cooling fan's wind direction is towards the fin, and the gap between two adjacent rows of fins sets up along horizontal cooling fan's wind direction, utilizes horizontal cooling fan to accelerate charging area's radiating rate, improves the radiating effect.

3. This fault protection system based on new forms of energy fill electric pile sets up to the inclined plane through the side upper end that is close to the fin with the fixing base, and fixedly connected with slant cooling fan on this inclined plane, can blow to the position of charging of vehicle, realizes the effective heat dissipation at vehicle position of charging.

4. This fault protection system based on new forms of energy fill electric pile through set up including the cooler bin between fixing base and heat-conducting plate, erect the cooling mechanism of cooling rack and oblique cooling rack, all wrap up the sponge cover in erecting cooling rack and oblique cooling rack surface, and at the sponge cover surface densely covered fine hair that absorbs water, utilize cold water in the cooler bin to soak sponge cover and fine hair that absorbs water, blow to the heat-conducting plate after making the wind that passes through obtain cooling, fin and vehicle charge the position, further reinforcing radiating effect.

5. This fault protection system based on new forms of energy fill electric pile through set up the vehicle parking aid including spacing seat, compression spring and limit wheel slider respectively in supplementary heat dissipation mechanism both sides, during the parking, the vehicle wheel is close to and promotes limit wheel slider for compression spring compresses gradually, and the vehicle is finally forced to park under spacing pipe and spacing seat's hindrance effect, and the car owner's of being convenient for accuracy parks.

6. This fill electric pile's fault protection system based on new forms of energy through connecting pressure sensor between compression spring and spacing seat, connects voice prompt device at spacing seat side, promotes the in-process of limit wheel slider at the vehicle wheel, when pressure sensor detects pressure and goes out to exceed its artifical threshold value of predetermineeing, can control voice prompt device through the controller and indicate that the car owner parks.

The device has the advantages that the parts which are not involved are the same as or can be realized by adopting the prior art, the auxiliary heat dissipation mechanism arranged on the surface of the parking space can effectively dissipate heat of a charging area when a vehicle is charged, the maintenance of a wireless charging pile and the vehicle is facilitated, local high temperature is avoided, and the safety of the charging process is improved.

Drawings

Fig. 1 is a schematic diagram of a fault protection system based on a new energy charging pile according to the present invention;

fig. 2 is a schematic structural diagram of a fault protection system based on a new energy charging pile according to the present invention;

fig. 3 is a schematic structural diagram of the auxiliary heat dissipation structure of the fault protection system based on the new energy charging pile according to the present invention in a disassembled state;

fig. 4 is a schematic structural diagram of a second embodiment of the fault protection system based on the new energy charging pile according to the present invention;

fig. 5 is a schematic structural diagram of a vehicle parking assist apparatus of the fault protection system based on the new energy charging pile according to the present invention in a partially cut-away state.

In the figure: 1. a parking space; 2. a control box; 3. a heat conducting plate; 4. a heat sink; 5. a groove; 6. a cooling tank; 7. pulling a handle; 8. a box cover; 9. erecting a cooling net rack; 10. an inclined cooling net rack; 11. a fixed seat; 12. a horizontal cooling fan; 13. an oblique cooling fan; 14. a limiting seat; 15. a limiting pipe; 16. a wheel limiting slide block; 17. a directional ball; 18. a roller; 19. a compression spring; 20. a pressure sensor; 21. provided is a voice prompt device.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Example 1

Referring to fig. 1-3, fill electric pile's fault protection system based on new forms of energy, including control box 2 with set up in the wireless electric pile that fills in parking stall 1 downside, control box 2 and wireless electric pile electric connection fill, wireless electric pile embeds high frequency electric energy emitter, and high frequency electric energy emitter electric connection high frequency power, high frequency power device converts three-phase power frequency alternating current to about 80~90kHz of frequency, the equal controllable high frequency alternating current of power for arouse transmitting coil and go out the electric energy wireless transmission. The core of the high-frequency power supply device includes two parts: the device comprises a rectification circuit, a voltage stabilization control circuit and a high-frequency inverter circuit; the high-frequency power supply part comprises a charging control module, and the charging control module is used for controlling the output of the system to enable the output to meet the load characteristic requirement. Aiming at the charging characteristics of different battery packs, the charging control module can control the output of the system to meet the requirements of constant voltage, constant power and constant current charging of the battery packs. The charging control module can also select different charging modes through a vehicle-mounted computer, a common charging mode and a quick charging mode are selected according to user requirements, a high-frequency electric energy transmitting device transmits electricity to a battery charging management system in the vehicle through a high-frequency electric energy receiving device arranged in the vehicle, specifically, the electric energy transmitting and receiving module mainly comprises a resonant inductor and a resonant capacitor, the electric energy transmitting module has the function of transmitting high-frequency voltage generated by a high-frequency power supply in an electromagnetic field mode, the electric energy receiving module has the function of generating resonance in cooperation with a high-frequency magnetic field generated by the electric energy transmitting module to form high-frequency current, and the transmitting and receiving form wireless transmission of electric energy, so that the charging voltage is 200V, and the charging current is 50A; still include cooling system, cooling system is including setting up in the supplementary heat dissipation mechanism on 1 surface in parking stall, can effectively dispel the heat to the charging area when the vehicle charges, is favorable to the maintenance of wireless charging stake and vehicle, avoids local high temperature, improves the security of charging process.

According to the invention, the auxiliary heat dissipation mechanism comprises a heat conduction plate 3 fixedly connected to the surface of the parking space 1 and a plurality of rows of heat dissipation fins 4 uniformly and fixedly connected to the upper end of the heat conduction plate 3, the heat conduction plate 3 is positioned right above the wireless charging pile, the wireless charging pile buried underground generates heat in the charging process, and the heat conduction plate 3 is utilized to diffuse the heat to the heat dissipation fins 4 for rapid heat dissipation.

Wherein, supplementary heat dissipation mechanism still includes fixing base 11 and horizontal cooling fan 12 of fixed connection on fixing base 11, and horizontal cooling fan 12's wind direction is towards fin 4, and the gap between two adjacent rows of fins 4 sets up along horizontal cooling fan 12's wind direction, utilizes horizontal cooling fan 12 to accelerate the radiating rate in charging area, improves the radiating effect.

Wherein, the side upper end of the fixing seat 11 close to the heat sink 4 is set to be an inclined plane, and an inclined cooling fan 13 is fixedly connected to the inclined plane, which can blow air to the charging part of the vehicle to realize heat dissipation of the part.

Wherein, be provided with cooling body between fixing base 11 and the heat-conducting plate 3, cooling body includes cooler bin 6, erect cooling rack 9 and

oblique cooling rack

10, 6 upper end joints of cooler bin have case lid 8, 6 inner wall fixedly connected with handle 7 of cooler bin, be provided with the recess 5 that supplies cooler bin 6 to place on parking stall 1, be provided with the jack that supplies to erect cooling rack 9 and insert on case lid 8, erect cooling rack 9 lower extreme and insert to the bottom in cooler bin 6, oblique cooling rack 10 fixed connection is in erecting cooling rack 9 upper end, erect cooling rack 9 and oblique cooling rack 10 surface and all wrap up the sponge cover, and the dense fluff that absorbs water of sponge cover surface cloth, the fluff that soaks sponge cover and absorption is soaked with cold water in the cooler bin 6, make the wind that passes through obtain after-blowing to heat-conducting plate 3, fin 4 and vehicle charging position, further reinforcing radiating effect.

The working principle is as follows: the car owner stops the vehicle in parking stall 1 department, make the position of charging of vehicle be close to and bury the wireless electric pile of filling in the underground, wireless electric pile of filling generates heat in charging process, utilize heat-conducting plate 3 to spread the heat and carry out quick heat dissipation on fin 4, open through controller automatic control horizontal cooling fan 12 and slant cooling fan 13 when the response is charged, accelerate the radiating rate in charging area, improve the radiating effect, utilize the cold water in cooler bin 6 to soak sponge cover and fine hair that absorbs water, make wind that passes through obtain cooling after-blow to heat-conducting plate 3, fin 4 and vehicle position of charging, further strengthen the radiating effect, be favorable to the maintenance of wireless electric pile and vehicle of filling, avoid local high temperature, improve charging process's security.

Example 2

Referring to fig. 4-5, in the fault protection system based on the new energy charging pile, in this embodiment, compared with embodiment 1, a pair of vehicle stopping assisting devices is disposed on a surface of a parking space 1, and the pair of vehicle stopping assisting devices are disposed on two sides of an auxiliary heat dissipation mechanism, respectively, the vehicle stopping assisting devices include a limiting seat 14, a compression spring 19 and a wheel limiting sliding block 16, the limiting seat 14 is fixedly connected to the surface of the parking space 1, the compression spring 19 is fixedly connected between the limiting seat 14 and the wheel limiting sliding block 16, a limiting tube 15 is sleeved outside the compression spring 19, two ends of the limiting tube 15 are fixedly connected with the limiting seat 14 and the wheel limiting sliding block 16, respectively, an end surface of the wheel limiting sliding block 16 far away from the limiting seat 14 is configured as an inward concave arc-shaped curved surface, when parking, a vehicle wheel approaches and pushes the wheel limiting sliding block 16, so that the compression spring 19 is gradually compressed, and the vehicle is finally forcibly parked under the blocking effect of the limiting tube 15 and the limiting seat 14, the accurate parking of the car owner is facilitated.

Wherein, be connected with pressure sensor 20 between compression spring 19 and the spacing seat 14, and pressure sensor 20 adopts film sensor, and spacing seat 14 side is connected with voice prompt device 21, and at the in-process that vehicle wheel promoted limit wheel slider 16, when pressure sensor 20 detected pressure and exceeded its artifical threshold value that predetermines, can pass through controller control voice prompt device 21 suggestion car owner and park.

The lower end of the wheel limiting sliding block 16 is fixedly connected with a roller 18, the concave arc-shaped curved surface of the wheel limiting sliding block 16 is provided with a plurality of spherical grooves, and directional balls 17 capable of rolling are connected in the spherical grooves, so that the friction force between the wheel limiting sliding block 16 and the wheels and the ground is reduced, and the wheel limiting sliding block 16 can smoothly slide under the thrust action of the wheels of the vehicle.

The working principle is as follows: when parking, the vehicle wheel is close to and promotes limit wheel slider 16 for compression spring 19 compresses gradually, and at the in-process that vehicle wheel promoted limit wheel slider 16, when pressure sensor 20 detected pressure and exceeded its artifical threshold value that predetermines, can pass through controller control voice prompt device 21 suggestion car owner and park, and in addition, the vehicle is finally forced to park under the barrier action of spacing pipe 15 and spacing seat 14, and the car owner's of being convenient for accuracy parks.

It should be further noted that the electrical control method used in this document is automatically controlled by a controller and powered by an external power source, and the control circuit of the controller can be implemented by simple programming by those skilled in the art, which belongs to the common knowledge in the art, and this application mainly serves to protect the mechanical device, so the control method and the circuit connection are not explained in detail in this application.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.

Claims

1. A fault protection system based on a new energy charging pile, comprising a control box (2) and a wireless charging pile arranged on the lower side of the parking space (1), the control box (2) is electrically connected with the wireless charging pile, and the The wireless charging pile has a built-in high-frequency power transmitting device, and the high-frequency power transmitting device is electrically connected to the high-frequency power supply. The high-frequency power transmitting device transmits electricity to the battery charging management inside the vehicle through the high-frequency power receiving device built into the vehicle. The system is characterized in that it further includes a heat dissipation system, and the heat dissipation system includes an auxiliary heat dissipation mechanism arranged on the surface of the parking space (1).

2. The fault protection system based on a new energy charging pile according to claim 1, characterized in that the auxiliary heat dissipation mechanism comprises a heat conduction plate (3) fixedly connected to the surface of the parking space (1) and a heat conduction plate (3) that is uniformly and fixedly connected to the heat conduction Multiple rows of heat sinks (4) on the upper end of the plate (3), the heat conducting plate (3) is located on the upper side of the wireless charging pile.

3. The fault protection system based on a new energy charging pile according to claim 2, wherein the auxiliary heat dissipation mechanism further comprises a fixing base (11) and a horizontal cooling fan (11) fixedly connected to the fixing base (11). 12), the wind direction of the horizontal cooling fan (12) is toward the cooling fins (4), and the gap between two adjacent rows of cooling fins (4) is arranged along the wind direction of the horizontal cooling fan (12).

4. The fault protection system based on a new energy charging pile according to claim 3, characterized in that the upper end of the side of the fixing base (11) close to the heat sink (4) is set as an inclined surface, and the inclined surface is fixedly connected with a Inclined cooling fan (13).

5 . The fault protection system based on a new energy charging pile according to claim 4 , wherein a cooling mechanism is arranged between the fixing seat ( 11 ) and the heat conducting plate ( 3 ). 6 .

6. The fault protection system based on a new energy charging pile according to claim 5, wherein the cooling mechanism comprises a cooling box (6), a vertical cooling grid (9) and an inclined cooling grid (10), The upper end of the cooling box (6) is clamped with a box cover (8), the inner wall of the cooling box (6) is fixedly connected with a handle (7), and the parking space (1) is provided with a cooling box (6) The groove (5) for placing, the box cover (8) is provided with a socket for the vertical cooling grid (9) to be inserted, and the lower end of the vertical cooling grid (9) is inserted into the cooling box (6) At the bottom end, the inclined cooling grid frame (10) is fixedly connected to the upper end of the vertical cooling grid frame (9). Cover surface is densely covered with absorbent fluff.

7. The fault protection system based on a new energy charging pile according to any one of claims 1-6, characterized in that, a pair of vehicle parking aids are provided on the surface of the parking space (1), and a pair of vehicle parking aids are provided on the surface of the parking space (1). They are respectively arranged on both sides of the auxiliary heat dissipation mechanism.

8 . The fault protection system based on a new energy charging pile according to claim 7 , wherein the vehicle parking aid device comprises a limit seat ( 14 ), a compression spring ( 19 ) and a wheel limit slider ( 16 ). 9 . , the limit seat (14) is fixedly connected to the surface of the parking space (1), the compression spring (19) is fixedly connected between the limit seat (14) and the wheel limit slider (16), the compression spring (19) A limit tube (15) is sleeved on the outer side, and the two ends of the limit tube (15) are respectively fixedly connected with the limit seat (14) and the wheel limit slider (16). The wheel limit slider (16) The end face away from the limit seat (14) is set as a concave arc-shaped curved surface.

9 . The fault protection system based on a new energy charging pile according to claim 8 , wherein a pressure sensor ( 20 ) is connected between the compression spring ( 19 ) and the limit seat ( 14 ), and the pressure sensor (20) A film sensor is used, and a voice prompting device (21) is connected to the side end of the limit seat (14).

10. The fault protection system based on a new energy charging pile according to claim 9, characterized in that a roller (18) is fixedly connected to the lower end of the wheel-limiting slider (16), and the wheel-limiting slider (16) A plurality of spherical grooves are arranged on the concave arc-shaped surface of the ball groove, and directional balls (17) that can be rolled are connected in the spherical grooves.