CN216231757U

CN216231757U - Charging pile

Info

Publication number: CN216231757U
Application number: CN202122923787.7U
Authority: CN
Inventors: 张磊; 楚秀全; 薛媛媛; 但德意
Original assignee: Sungrow Power Supply Co Ltd
Current assignee: Sungrow Power Supply Co Ltd
Priority date: 2021-11-23
Filing date: 2021-11-23
Publication date: 2022-04-08
Anticipated expiration: 2031-11-23

Abstract

The utility model discloses a charging pile. Wherein, should fill electric pile includes: the device comprises an alternating current distribution module, a power factor correction circuit PFC, a resonant converter LLC and a direct current distribution module. The surface of the alternating current power distribution module is provided with a first natural cooling plate, a first siphon device used for accelerating air flow is arranged between the natural cooling plate and the power factor correction circuit PFC, a second natural cooling plate is arranged on the surface of the direct current power distribution module, and a second siphon device used for accelerating air flow is arranged between the natural cooling plate and the resonant converter LLC. The utility model solves the technical problem of overlarge noise caused by the fact that the existing charging pile adopts a forced air cooling mode for heat dissipation.

Description

Charging pile

Technical Field

The utility model relates to the field of direct current charging, in particular to a charging pile.

Background

The existing direct current charging pile usually adopts a forced air cooling mode to dissipate heat, and the noise can reach 80dB when the heat is dissipated. And direct current fills electric pile again belongs to infrastructure, builds in dense places of people's mouth such as residential area usually, and this noise problem that leads to direct current to fill electric pile influences the number of people more. In addition, the charging module of the existing charging pile can not be changed independently when damaged, for example, if the AC/DC part is damaged, the DC/DC part is also replaced together, and resources are not saved.

In view of the above problems, no effective solution has been proposed.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a charging pile, which at least solves the technical problem of overlarge noise caused by heat dissipation of the existing charging pile in a forced air cooling mode.

According to an aspect of an embodiment of the present invention, there is provided a charging pile including: the device comprises an alternating current distribution module, a power factor correction circuit (PFC), a resonant converter (LLC) and a direct current distribution module, wherein one end of the alternating current distribution module is connected with a main power supply loop, and the other end of the alternating current distribution module is connected with the PFC and used for obtaining alternating current from the main power supply loop and transmitting the alternating current to the PFC, a first natural cooling plate is arranged on the surface of the alternating current distribution module, and a first siphon device used for accelerating air flow is arranged between the natural cooling plate and the PFC; one end of the power factor correction circuit PFC is connected with the alternating current distribution module, and the other end of the PFC is connected with the resonant converter LLC, and is used for rectifying alternating current into direct current and sending the direct current to the resonant converter LLC; one end of the resonant converter LLC is connected with the power factor correction circuit PFC, and the other end of the resonant converter LLC is connected with the direct current distribution module and is used for adjusting the direct current into a target direct current and sending the target direct current to the direct current distribution module, wherein a second natural cooling plate is arranged on the surface of the direct current distribution module, and a second siphon device used for accelerating air flow is arranged between the natural cooling plate and the resonant converter LLC; and the direct current distribution module is connected with the resonant converter LLC and used for receiving the target direct current and generating charging direct current based on the target direct current.

Optionally, the charging pile further comprises a photovoltaic power generation module and an energy storage system, wherein the photovoltaic power generation module is respectively arranged above the power factor correction circuit PFC and the resonant converter LLC, a third natural cooling plate is arranged above the power factor correction circuit PFC, a fourth natural cooling plate is arranged above the resonant converter LLC, a third siphon device for accelerating air flow is arranged between the third natural cooling plate and the photovoltaic power generation module, and a fourth siphon device for accelerating air flow is arranged between the fourth natural cooling plate and the photovoltaic power generation module; one end of the energy storage system is connected with the photovoltaic power generation module, and the other end of the energy storage system is connected with the alternating current distribution module and used for storing electric energy generated by the photovoltaic power generation module and providing direct current for the resonant converter LLC when the main power supply back load exceeds a preset load.

Optionally, the charging pile further comprises a plurality of supporting columns and a supporting surface, wherein one end of each supporting column is connected with the supporting surface, the other end of each supporting column is connected with the ground, and a cable is arranged in each supporting column and used for transmitting current; the alternating current distribution module and the direct current distribution module are arranged on the supporting surface.

Optionally, the charging pile further comprises a human-computer interaction device and a charging gun, wherein the human-computer interaction device and the charging gun are arranged on one target support column in the plurality of support columns, and the human-computer interaction device is used for identifying the user identity of a target object to be charged; and the charging gun is connected with the direct current distribution module and used for receiving charging direct current and charging the target electric vehicle.

Optionally, the charging pile further comprises a controller, the controller is connected with the human-computer interaction device and the charging gun, and the controller is used for controlling the charging gun to charge the target electric vehicle based on an instruction sent by the human-computer interaction device.

Optionally, the controller is connected to the ac power distribution module, the power factor correction circuit PFC, the resonant converter LLC, and the dc power distribution module through a controller area network CAN.

Optionally, the controller further includes a wireless communication module, wherein the controller is connected to the cloud platform through the wireless communication module, and is configured to receive a scheduling instruction sent by the cloud platform, and issue a control instruction for controlling the operating states of the ac power distribution module, the power factor correction circuit PFC, the resonant converter LLC, and the dc power distribution module through the controller area network CAN based on the scheduling instruction.

Optionally, the controller is further connected with the energy storage system through a controller area network CAN, and the controller closes or opens a circuit between the energy storage system and the ac power distribution module through the controller area network CAN under the condition that the wireless communication module receives an energy storage system scheduling instruction of the cloud platform.

Optionally, a natural air duct with an air inlet diameter smaller than the air outlet diameter may be formed between the first natural cooling plate and the PFC through a connector, and a natural air duct with an air inlet diameter smaller than the air outlet diameter may be formed between the natural cooling plate and the resonant converter LLC through a connector.

Optionally, the ac power distribution module is connected to the main power supply loop, the ac power distribution module is connected to the PFC, the PFC is connected to the resonant converter LLC, and the resonant converter LLC is connected to the dc power distribution module by a connector or a ground connection device with a protective cover.

In the embodiment of the utility model, the first siphon device is arranged between the first natural cooling plate and the PFC (power factor correction) circuit, and the second siphon device is arranged between the second natural cooling plate and the LLC (resonant converter), so that the air flow is accelerated through the siphon devices, the aim of dissipating heat of main power devices of the charging pile through natural air cooling is fulfilled, the technical effect of not installing a forced air cooling device is realized, and the technical problem of overlarge noise caused by heat dissipation of the conventional charging pile through the forced air cooling method is solved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the utility model and together with the description serve to explain the utility model without limiting the utility model. In the drawings:

fig. 1 is a structural diagram of a charging pile according to an embodiment of the present invention;

fig. 2 is a block diagram of another charging pile according to an embodiment of the present invention;

fig. 3 is a diagram illustrating the connection of various modules inside a charging pile according to an embodiment of the present invention;

FIG. 4 is an internal block diagram of a controller according to an embodiment of the present invention;

fig. 5 is a schematic diagram of a charging process of a charging pile according to an embodiment of the present invention.

Detailed Description

In order to make the technical solutions of the present invention better understood, 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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

According to the embodiment of the utility model, the embodiment of the method for charging the electric pile is provided. As shown in fig. 1, the charging pile includes: the system comprises an alternating current power distribution module 01, a power factor correction circuit PFC02, a resonant converter LLC03 and a direct current power distribution module 04, wherein one end of the alternating current power distribution module 01 is connected with a main power supply loop, the other end of the alternating current power distribution module is connected with the power factor correction circuit PFC02 and is used for obtaining alternating current from the main power supply loop and transmitting the alternating current to the power factor correction circuit PFC02, a first natural cooling plate 07 is arranged on the surface of the alternating current power distribution module 01, and a first siphon device 05 used for accelerating air flow is arranged between the natural cooling plate and the power factor correction circuit PFC 02; one end of the power factor correction circuit PFC02 is connected with the alternating current distribution module 01, and the other end of the power factor correction circuit PFC02 is connected with the resonant converter LLC03 and used for rectifying alternating current into direct current and sending the direct current to the resonant converter LLC 03; one end of the resonant converter LLC03 is connected with the power factor correction circuit PFC02, and the other end of the resonant converter LLC03 is connected with the direct current distribution module 04 and is used for adjusting the direct current into a target direct current and sending the target direct current to the direct current distribution module 04, wherein a second natural cooling plate 08 is arranged on the surface of the direct current distribution module 04, and a second siphon device 06 for accelerating air flow is arranged between the natural cooling plate and the resonant converter LLC 03; and the direct current distribution module 04 is connected with the resonant converter LLC03 and is used for receiving the target direct current and generating charging direct current based on the target direct current.

In some implementations of the present application, the ac power distribution module 01 is connected to the main power supply loop, the ac power distribution module 01 is connected to the PFC02, the PFC02 is connected to the resonant converter LLC03, and the resonant converter LLC03 is connected to the dc power distribution module 04 by connectors or ground connection devices with a protective cover.

In some embodiments of the present application, the protection level of the connector or the connection device may be set by a target object based on the actual situation of the charging pile usage environment and related specifications, for example, the protection level of the connection plug or the connection device may be set to IP 67.

In some embodiments of the present application, since the ac power distribution module 01, the PFC02, the resonant converter LLC03 and the dc power distribution module 04 are independent modules, when a component fails and needs to be replaced, only the failed component needs to be replaced, and the non-failed component does not need to be replaced. For example, when the power factor correction circuit PFC02 fails, only the power factor correction circuit PFC02 may be replaced without replacing the ac power distribution module 01, the resonant converter LLC03, and the dc power distribution module 04.

In some embodiments of the present application, as shown in fig. 2, the charging pile further includes a photovoltaic power generation module 11 and an energy storage system 12, where the photovoltaic power generation module 11 is disposed above the power factor correction circuit PFC02 and the resonant converter LLC03, respectively, a third natural cooling plate 09 is disposed above the power factor correction circuit PFC02, a fourth natural cooling plate 10 is disposed above the resonant converter LLC03, a third siphon device 13 for accelerating air flow is disposed between the third natural cooling plate 09 and the photovoltaic power generation module 11, and a fourth siphon device 14 for accelerating air flow is disposed between the fourth natural cooling plate 10 and the photovoltaic power generation module 11; one end of the energy storage system 12 is connected with the photovoltaic power generation module 11, and the other end is connected with the alternating current distribution module 01, and the energy storage system is used for storing electric energy generated by the photovoltaic power generation module 11 and providing direct current for the resonant converter LLC03 when the main power supply back load exceeds a preset load.

In some embodiments of the present application, when the utilization rate of the transformer capacity of the cell where the charging pile is located is high, the energy storage system 12 may provide electric energy for the charging pile under the control of the controller 17, so as to reduce the burden of the main power supply line of the cell.

In some embodiments of the present application, the electric energy provided by the energy storage module is alternating current.

In some embodiments of the present application, the first and second siphoning devices 05, 06 shown in fig. 1 or 2 may also be replaced by natural wind ducts. Specifically, a natural air duct with an air inlet diameter smaller than that of the air outlet can be formed between the first natural cooling plate 07 and the power factor correction circuit PFC02 through a connector, and a natural air duct with an air inlet diameter smaller than that of the air outlet can be formed between the second natural cooling plate 08 and the resonant converter LLC03 through a connector.

In some embodiments of the present application, as shown in fig. 2, the charging pile further includes a plurality of supporting pillars 16 and a supporting surface 15, wherein one end of each supporting pillar 16 is connected to the supporting surface 15, and the other end is connected to the ground, and a cable is disposed in each supporting pillar 16 for transmitting current; the ac power distribution module 01 and the dc power distribution module 04 are disposed on the support surface 15.

In some embodiments of the present application, the supporting surface 15 may be a canopy in a cell where the charging pile is located.

In some embodiments of the present application, as shown in fig. 2, the charging pile further includes a human-computer interaction device 18 and a charging gun 19, the human-computer interaction device 18 and the charging gun 19 are disposed on one target supporting column 16 of the plurality of supporting columns 16, wherein the human-computer interaction device 18 is configured to identify a user identity of a target object to be charged; and the charging gun 19 is connected with the direct current distribution module 04 and is used for receiving charging direct current and charging the target electric vehicle.

In some embodiments of the present application, as shown in fig. 2, a controller 17 is further included in the charging pile, and the controller 17 is connected to the human-computer interaction device 18 and the charging gun 19, where the controller 17 is configured to control the charging gun 19 to charge the target electric vehicle based on an instruction sent by the human-computer interaction device 18.

In some embodiments of the present application, as shown in fig. 3, the controller 17 is connected to the ac power distribution module 01, the power factor correction circuit PFC02, the resonant converter LLC03, and the sensors and processors in the dc power distribution module 04 through a local area network CAN of the controller 17, which together form an energy management system in the charging pile. The sensors in the ac power distribution module 01, the power factor correction circuit PFC02, the resonant converter LLC03, and the dc power distribution module 04 are configured to acquire working parameters of each device, and send the acquired working parameters to the controller 17, and the controller 17 sends corresponding control instructions to the processor of each device based on the received working parameters of each device, so as to adjust the working state of each device.

In some embodiments of the present application, the controller 17 further includes a wireless communication module, where the controller 17 is connected to the cloud platform through the wireless communication module, and is configured to receive a scheduling instruction sent by the cloud platform, and issue a control instruction for controlling the operating states of the ac power distribution module 01, the power factor correction circuit PFC02, the resonant converter LLC03, and the dc power distribution module 04 through the controller 17 local area network CAN based on the scheduling instruction.

In some embodiments of the present application, as shown in fig. 3, the controller 17 is further connected to the energy storage system 12 through a controller 17 area network CAN, and in case of receiving a scheduling command of the energy storage system 12 of the cloud platform through the wireless communication module, the controller 17 area network CAN closes or opens a circuit between the energy storage system 12 and the ac power distribution module 01.

In some embodiments of the present application, as shown in fig. 3, the energy storage system 12 and the ac power distribution module 01 are connected by power lines, and the ac power distribution module 01 and the PFC02, the PFC02 and the LLC03, the LLC03 and the dc power distribution module 04, and the dc power distribution module 04 and the charging gun 19 are connected by power lines.

In some embodiments of the present application, the controller includes, as shown in fig. 4, an MCU170, a plurality of ports 171 for external communication, a 4G communication module 172 for receiving a cloud platform scheduling command, a plurality of CAN interfaces 173 connected to a controller area network CAN, an RS232 circuit 174 for communicating with a human-computer interaction device, and a BMS communication module 175 for communicating with an upper computer.

In some embodiments of the present application, as shown in fig. 4, the controller further includes a charging gun signal management module 176 for controlling whether the charging gun operates, an insulation detection module 177 for detecting whether each component in the charging pile is faulty, and a line disconnection control module 178 for controlling whether the energy storage system is connected to the charging pile to supply power to the charging pile.

In some embodiments of the present application, a specific process of charging an electric vehicle by a target user using the charging pile is shown in fig. 5, and includes the following steps:

firstly, the charging pile executes step S502, a human-computer interaction interface running on a human-computer interaction device receives a charging instruction of a target object, then step S504 is executed, the human-computer interaction device acquires identity information of the target object and sends the identity information to the controller, and the controller determines the validity of charging information of the target object, namely whether the target object can use the charging pile to charge the electric vehicle. Specifically, the human-computer interaction device may obtain the identity information of the target object through an NFC function and an intelligent terminal device (such as a mobile phone) or a wearable intelligent device (such as a smart band or a smart watch) of the target object, and by providing a two-dimensional code or a barcode and scanning the target object.

After the identity information of the target object passes the verification, the charging pile executes step S506 to select the energy source for the current charging, where the energy source for the current charging may be to obtain electric energy from a power grid or obtain electric energy from an energy storage system. Finally, step S508 is executed to charge the electric vehicle of the target object, and the charging process is ended after the electric vehicle is fully charged.

The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.

In the above embodiments of the present invention, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

In the embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, a division of a unit may be a division of a logic function, and an actual implementation may have another division, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or may not be executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, units or modules, and may be in an electrical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A charging pile, comprising: an alternating current distribution module, a power factor correction circuit PFC, a resonant converter LLC and a direct current distribution module, wherein,

one end of the alternating current distribution module is connected with a main power supply loop, the other end of the alternating current distribution module is connected with the power factor correction circuit PFC, and the alternating current distribution module is used for acquiring alternating current from the main power supply loop and transmitting the alternating current to the power factor correction circuit PFC, wherein a first natural cooling plate is arranged on the surface of the alternating current distribution module, and a first siphon device used for accelerating air flow is arranged between the natural cooling plate and the power factor correction circuit PFC;

one end of the power factor correction circuit PFC is connected with the alternating current distribution module, and the other end of the power factor correction circuit PFC is connected with the resonant converter LLC, and is used for rectifying the alternating current into direct current and sending the direct current to the resonant converter LLC;

one end of the resonant converter LLC is connected with the power factor correction circuit PFC, and the other end of the resonant converter LLC is connected with the direct current distribution module, and the resonant converter LLC is used for adjusting the direct current into a target direct current and sending the target direct current to the direct current distribution module, wherein a second natural cooling plate is arranged on the surface of the direct current distribution module, and a second siphon device used for accelerating air flow is arranged between the natural cooling plate and the resonant converter LLC;

the direct current distribution module is connected with the resonant converter LLC, and is used for receiving the target direct current and generating charging direct current based on the target direct current.

2. Charging pile according to claim 1, characterised in that it further comprises a photovoltaic module and an energy storage system, wherein,

the photovoltaic power generation module is respectively arranged above the power factor correction circuit PFC and the resonant converter LLC, wherein a third natural cooling plate is arranged above the power factor correction circuit PFC, a fourth natural cooling plate is arranged above the resonant converter LLC, a third siphon device for accelerating air flow is arranged between the third natural cooling plate and the photovoltaic power generation module, and a fourth siphon device for accelerating air flow is arranged between the fourth natural cooling plate and the photovoltaic power generation module;

and one end of the energy storage system is connected with the photovoltaic power generation module, and the other end of the energy storage system is connected with the alternating current distribution module, and is used for storing electric energy generated by the photovoltaic power generation module and providing direct current for the resonant converter LLC when the load of the main power supply loop exceeds a preset load.

3. The charging pole of claim 1, further comprising a plurality of support posts and a support surface, wherein,

one end of the supporting column is connected with the supporting surface, and the other end of the supporting column is connected with the ground, wherein a cable is arranged in the supporting column and used for transmitting current;

the alternating current distribution module and the direct current distribution module are arranged on the supporting surface.

4. The charging pile of claim 3, further comprising a human-machine interaction device and a charging gun, the human-machine interaction device and the charging gun being disposed on a target support column of the plurality of support columns,

the human-computer interaction device is used for identifying the user identity of a target object needing to be charged;

and the charging gun is connected with the direct current distribution module and used for receiving the charging direct current and charging a target electric vehicle.

5. The charging post according to claim 4, further comprising a controller connected to the human-machine interface device and the charging gun, wherein,

the controller is used for controlling the charging gun to charge the target electric vehicle based on the instruction sent by the man-machine interaction device.

6. The charging pile of claim 5, wherein the controller is connected to the AC distribution module, the PFC circuit, the LLC circuit and the DC distribution module via a Controller Area Network (CAN).

7. The charging pile according to claim 6, wherein the controller further comprises a wireless communication module, wherein the controller is connected with a cloud platform through the wireless communication module, and is configured to receive a scheduling instruction sent by the cloud platform, and issue a control instruction for controlling the operating states of the ac power distribution module, the PFC circuit, the LLC module and the dc power distribution module through the controller area network CAN based on the scheduling instruction.

8. The charging pile according to claim 7, wherein the controller is further connected with an energy storage system through the controller area network CAN, and closes or opens a circuit between the energy storage system and the AC power distribution module through the controller area network CAN when receiving an energy storage system dispatching command of the cloud platform through the wireless communication module.

9. The charging pile according to claim 1, wherein a natural air duct with an air inlet diameter smaller than an air outlet diameter is formed between the first natural cooling plate and the PFC circuit through a connector, and,

and a natural air duct with the diameter of an air inlet smaller than that of an air outlet can be formed between the second natural cooling plate and the resonant converter LLC through a connecting piece.

10. The charging pile according to claim 1, wherein the ac power distribution module is connected to the main power supply loop, the ac power distribution module is connected to the PFC circuit, the PFC circuit is connected to the resonant converter LLC, and the resonant converter LLC is connected to the dc power distribution module via a connector or a ground connection device with a protective cover.