CN215322072U

CN215322072U - Direct current charging pile comprising more than two charging modules

Info

Publication number: CN215322072U
Application number: CN202121456759.2U
Authority: CN
Inventors: 赵中亭; 赵俊杰; 卢峰波; 杨相玉
Original assignee: Henan Senyuan Electric Co Ltd
Current assignee: Henan Senyuan Electric Co Ltd
Priority date: 2021-06-29
Filing date: 2021-06-29
Publication date: 2021-12-28
Anticipated expiration: 2031-06-29

Abstract

The utility model relates to a direct current charging pile comprising more than two charging modules. Should fill electric pile includes: more than two charging modules and a heat dissipation system; the heat dissipation system comprises a charging pile air box and a fan; the air door is arranged at one end of the airflow channel of each charging module and can seal and open the corresponding airflow channel; the driving mechanism is used for driving the air door to act so as to finish the actions of plugging and opening; and the control system is connected with the driving mechanism. The air door that the module that charges that can control the shut down through control system corresponds is closed, has so blocked the airflow channel of the module that charges that corresponds, and the heat that other modules that charge that are in the on-state distribute can not circulate in the airflow channel of the module that charges that is in the off-state, has just so realized the module that charges of on-state and the thermal isolation between the module that charges of off-state, has improved the radiating effect who fills electric pile.

Description

Direct current charging pile comprising more than two charging modules

Technical Field

The utility model relates to a direct current charging pile comprising more than two charging modules.

Background

At present, when the ambient temperature of a charging pile on the domestic market is below 55 ℃, the charging module can output full power, when the ambient temperature is above 55 ℃, the output power of the charging module is derated, and when the ambient temperature reaches 75 ℃, the output power of the charging module is reduced to 0. The charging pile is mainly used outdoors, the outdoor environment temperature reaches 50-55 ℃ normally in summer, and the thermal problem of the charging module is particularly obvious. The charging pile device operates in an environment higher than the rated temperature for a long time, the charging efficiency of the charging pile is influenced, the insulation aging of the device is easily caused, the service life of the device is shortened, and even the device is damaged. Therefore, how to carry out the efficient heat dissipation to the module that charges is very important to the safe and reliable operation of filling electric pile.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a direct current charging pile comprising more than two charging modules, which is used for solving the problem of poor heat dissipation effect of the existing direct current charging pile comprising more than two charging modules.

The utility model relates to a direct current charging pile comprising more than two charging modules, which comprises:

a housing;

the charging modules are arranged in parallel, and each charging module is internally provided with an airflow channel communicated with two ends of the charging module;

the heat dissipation system is used for dissipating heat of the charging module;

the heat dissipation system includes:

the charging pile air box is positioned at one end of each charging module and is in butt joint with one end of the airflow channel of each charging module;

the fan is arranged on the charging pile air box and used for promoting air to flow from one end of the airflow channel to the end, where the charging pile air box is located, of the airflow channel during operation;

the air door is arranged at one end of the airflow channel of each charging module and can seal and open the corresponding airflow channel;

the driving mechanism is used for driving the air door to act so as to finish the actions of plugging and opening;

and the control system is connected with the driving mechanism, and controls the driving mechanism to act so as to enable the air door corresponding to the charging module in the running state to be in an open state and enable the air door corresponding to the charging module in the stopping state to be in a sealing state when part of the plurality of charging modules are in the stopping state and part of the plurality of charging modules are in the running state.

According to the direct-current charging pile, the air door corresponding to the stopped charging module can be controlled to be closed through the control system, so that the airflow channel of the corresponding charging module is blocked, heat emitted by other charging modules in the starting state cannot circulate in the airflow channel of the stopped charging module, and therefore thermal isolation between the starting charging module and the stopped charging module is achieved, more heat can be emitted to the outside of the charging pile, the heat dissipation effect of the charging pile is improved, the service life of the charging pile is prolonged, and the safety of the charging pile is improved.

Further, the fan is located in the extending direction of the airflow channel. The air flow can flow along a straight line integrally due to the arrangement of the position, the flowing smoothness of the air flow is improved, and the heat dissipation effect is good.

Furthermore, the charging modules are divided into a plurality of groups, each group of charging modules is started or stopped at the same time, the number of the driving mechanisms is equal to the number of the groups of the charging modules, and the air doors of more than two charging modules in the same group share one driving mechanism. The charging modules in the same working state share one air door, so that the control of the air door corresponding to the charging module is facilitated, and the equipment cost is reduced.

As an optimized scheme, the air door is arranged at one end of the air flow channel, where the charging pile air box is arranged. Therefore, the heat of the charging module in the starting state is prevented from flowing into the charging module in the stopping state, and the thermal isolation between the charging module in the stopping state and the charging module in the starting state can be better realized.

Furthermore, actuating mechanism arranges in filling the electric pile bellows, can enough protect actuating mechanism through the bellows like this, has reduced whole volume of filling the electric pile moreover.

As another optimized scheme, the air door is an air grid, the air grid comprises a plurality of air grid blades rotatably mounted at one end of the air flow channel, and each air grid blade can open and close the corresponding air flow channel when rotating. Adopt the air grid as the air door, the space that every air grid blade took in the switch rotation process is less, can further reduce the volume of filling electric pile.

Furthermore, the charging module is cuboid, the airflow channel extends along the length direction of the cuboid, the plurality of charging modules are arranged in the thickness direction at intervals in parallel, the rotation axis of the air grid blade extends along the height direction of the cuboid charging module, and the driving mechanism is in transmission connection with the end parts of the plurality of air grid blades of the same air grid. The arrangement enables the number of the air grid blades contained in the same air door to be excessive, the structure is simplified, and the difficulty of manufacturing and assembling is reduced.

Furthermore, the top and the bottom of the length direction one end of the charging module are relatively fixed with a wind grid mounting plate, and a rotating shaft of a wind grid blade is rotatably mounted on the wind grid mounting plate. The fixing mode of the air grid blade can be simply modified on the basis of the original charging module, and the design and manufacturing cost is low.

As an optimized scheme, the driving mechanism is a linear driving mechanism which outputs linear motion, the linear driving mechanism is directly or indirectly connected with a transmission plate, the extending direction of the transmission plate is consistent with the arrangement direction of a plurality of air grid blades of the same air door, one end of a rotating shaft of the plurality of air grid blades of the air grid is provided with an eccentric stirring end, the transmission plate is provided with a pushing and pulling structure matched with the stirring end, and when the transmission plate linearly reciprocates, the stirring end is pushed and pulled through the pushing and pulling structure, so that the reciprocating rotation of the air grid blades around the rotating shaft is realized. The driving mechanism and the air grid blades are in a transmission mode, the structure is simple, the assembly is convenient, and the synchronous rotation of the air grid blades of the same air door can be simply realized.

In addition, the heat dissipation system further comprises a temperature sensor, the temperature sensor is connected with the control system, the temperature sensor is used for detecting the temperature inside the air flow channel, and after part of the charging modules are stopped and when the corresponding temperature sensors detect that the temperature is lower than the set temperature, the control system controls the air doors corresponding to the part of the stopped charging modules to be closed. Ambient temperature in the charging module of parking state can be detected through temperature sensor, and control the wind door when being in suitable temperature range, avoids closing too early after the shut down and leads to the unable rapid dissipation of heat, perhaps closes too long after the shut down and leads to the heat that the charging module of start-up state sent to get into.

Drawings

Fig. 1 is a partial structural schematic diagram of a first embodiment of a dc charging pile including two or more charging modules according to the present invention;

FIG. 2 is a right side view of FIG. 1 with the blower omitted;

FIG. 3 is an enlarged view of the charging module of FIG. 2;

fig. 4 is a schematic structural diagram of a wind grid blade.

In the figure: 1. a charging module; 2. a charging pile air box; 3. a fan; 4. a wind grid; 40. a wind grid mounting plate; 41. a wind grid blade; 42. a toggle end; 51. an electric push rod; 52. a first link; 53. a second link; 510. an electric push rod fixing part; 511. the electric push rod is fixed on the shaft; 512. an electric push rod operating member; 7. a temperature sensor.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The features and properties of the present invention are described in further detail below with reference to examples.

The first embodiment of the dc charging pile including two or more charging modules of the present invention is:

the direct current that contains the more than two modules that charge of this embodiment fills electric pile and includes the casing, has arranged the module 1 that charges and with the supporting cooling system of the module 1 that charges in the casing.

As shown in fig. 1 to 4, there are four charging modules 1, and the four charging modules 1 are horizontally arranged in parallel, the charging module 1 is rectangular, the charging module 1 has an air flow passage penetrating from one end to the other end in the length direction, and the four charging modules 1 are arranged in a posture in which the length direction extends horizontally and are arranged in parallel in the thickness direction.

The heat dissipation system is mainly used for dissipating heat of the charging modules 1 and comprises charging pile air boxes 2, wherein the charging pile air boxes 2 are rectangular air boxes and are located at one end positions of the four charging modules 1. One side wall of the charging pile air box 2 is in butt joint with one end of the four charging modules 1 at the same side, the requirement of butt joint is that the side wall of the charging pile air box 2 is in closed connection with the four charging modules 1, and the end part of the charging module 1 is exposed out of the charging pile air box 2, so that the air flow channel is communicated with the inside of the rectangular air box. The other side wall of the rectangular air box, which is opposite to the charging modules 1, is fixedly provided with two fans 3, and the two fans 3 are arranged in parallel at intervals in the parallel direction of the four charging modules 1. When fan 3 starts, can make outside air current flow from the one end of filling electric pile bellows 2 of keeping away from of the module of charging 1 flow into airflow channel, then fill electric pile bellows 2 from airflow channel's the other end entering, and outwards discharge through fan 3, so realize the heat dissipation to the module of charging 1.

The cooling system further comprises four air doors, and the four air doors correspond to the charging modules 1 one by one. In this embodiment, the air door is in the one end that is close to charging pile bellows 2 of module 1 that charges, and can open and close the airflow channel who charges this end of module 1. A driving mechanism is arranged in the charging pile air box 2 and is connected to the air door in a transmission mode and drives the air door to act. The heat dissipation system further comprises a control system, and the control system controls the corresponding driving mechanism of the air door to work according to the starting and stopping of the charging module 1.

The air door is mainly arranged to close the airflow channel of the charging module 1 in the shutdown state when part of the charging module 1 is started and part of the charging module 1 is shut down, so that heat emitted by the charging module 1 in the starting state is prevented from flowing back into the airflow channel of the charging module 1 in the shutdown state, and adverse effects are caused to the charging module 1 in the shutdown state.

Specifically, in this embodiment, the air door adopts the air grid 4, the air grid 4 includes four air grid blades 41, and the four air grid blades 41 are arranged side by side in the thickness direction of the rectangular charging module 1 and are mutually matched. The end part of the charging module 1 in the length direction is respectively provided with air grid mounting plates 40 at the upper side and the lower side of the air flow channel, the four air grid blades 41 are rotatably mounted on the air grid mounting plates 40 around a vertical axis (the height direction of the cuboid charging module 1), when the four air grid blades 41 rotate to be in the same plane and are spliced with each other, one end port of the air flow channel is closed, and when the four air grid blades 41 rotate to be in a mutually parallel and spaced state, one end port of the air flow channel is opened.

Adopt air grid 4 as the air door, when air grid blade 41 rotated to realize opening and closing, the space that occupies was less, can reduce the required space of air door greatly like this, finally can reduce the volume of filling electric pile. Moreover, the air grid blade 41 has a simple structure and is convenient to assemble.

In the actual working process of the charging pile, the number of the charging modules 1 is controlled to be started and stopped according to the requirement of the vehicle on the charging power. In this embodiment, one module 1 that charges is 15kW, and four modules 1 that charge 60kW altogether, when filling electric pile and charging for the car, electric automobile's demand power is 30kW, only needs two modules 1 work that charges, and two other modules 1 that charge need not to start. Therefore, in this embodiment, the four charging modules 1 are divided into two groups, each group includes two charging modules, and the dampers of all the charging modules 1 in the same group are simultaneously controlled to be opened or closed during operation. For the convenience of control, the dampers of two charging modules 1 in the same group share one set of driving mechanism in this embodiment. Of course, in other embodiments, if only one charging module 1 needs to be activated when charging a vehicle according to the charging power requirement, the dampers of the single charging module 1 are individually controlled, and if three charging modules 1 are needed when charging a vehicle according to the charging power requirement, the dampers of the three charging modules 1 share one driving mechanism; the total number of the charging modules 1 is not necessarily an integer multiple of the number of the charging modules 1 in each group, for example, there may be five charging modules 1, wherein three charging modules are in one group, and another charging module is in another group, and the two groups are respectively used for different charging power requirements.

In addition, the driving mechanism for driving the wind grid 4 to rotate in this embodiment is a linear driving mechanism, specifically, the electric push rod 51 includes an electric push rod fixing part 510 and an electric push rod acting part 512, the end of the electric push rod fixing part 510 is fixed in the charging pile wind box 2 through an electric push rod fixing shaft 511, the electric push rod acting part 512 is connected with two first connecting rods 52, the other ends of the two first connecting rods 52 are respectively connected with a second connecting rod 53, the two second connecting rods 53 respectively correspond to the wind grids 4 of the two charging modules 1, and the electric push rod 51 is in transmission connection with the wind grids 4. The electric push rod 51 can output reciprocating linear motion along the arrangement direction of the wind grid blades 41, the second connecting rod 53 extends in the thickness direction of the rectangular parallelepiped charging module 1 (i.e. the arrangement direction of the wind grid blades 41), and when the electric push rod 51 extends and retracts, the second connecting rod 53 can be driven by the first connecting rod 52 to reciprocate linear motion in the arrangement direction of the wind grid blades 41.

The lower end of the rotating shaft of the wind grid blade 41 is bent to form an L-shaped shaft section, the L-shaped shaft section is eccentric to the rotating shaft of the wind grid blade 41 to form a toggle end 42, the second connecting rod 53 forms a transmission plate which directly establishes a transmission relation with the wind grid blade 41, one side of the second connecting rod 53 is provided with four tooth sockets (which can also be slot holes), the four tooth sockets of the second connecting rod 53 respectively correspond to the toggle ends 42 of the four wind grid blades 41 one by one, and the toggle ends 42 are located in the tooth sockets, when the second connecting rod 53 linearly reciprocates, the second connecting rod 53 can push and pull the toggle ends 42 of the wind grid blades 41 through the tooth sockets, so that the wind grid blades 41 rotate around the rotation.

In addition, each group of charging modules 1 is also provided with a temperature sensor 7, and the temperature sensor 7 is used for detecting the temperature in the airflow channel of the charging module 1 and feeding back the temperature to the control system.

When the charging pile works, cold air enters the airflow channel from the front end of the charging module 1, exchanges heat with the charging module 1 and then enters the charging pile air box 2, and hot air is pumped out of the charging pile cabinet body by the air outlet fan 3. If no air door is added at the rear end of the charging module 1, when the air pressure in the charging pile air box 2 is high, hot air flows back to the front end of the charging module 1 in a working state from the rear end of the charging module 1 in a shutdown state, and then enters the charging pile air box 2 through the air flow channel of the charging module 1 in the working state again, and the air cannot exchange heat with the charging module 1 due to high temperature, so that harmful circulation of the hot air is caused, the heat dissipation efficiency of a charging pile cabinet body is reduced, and the hot air also has adverse effects on the charging module 1 in the shutdown state through the charging module 1 in the shutdown state; when filling when the interior under-voltage of electric pile bellows 2, the air can be followed the airflow channel inflow of the module of charging 1 that is in the stall state and filled electric pile bellows 2 back, fills the electric pile cabinet body by air-out fan 3 direct discharge, does not carry out the heat exchange with the module of charging 1 that is in operating condition, causes air-out fan 3 invalid work of doing work, has increased the consumption that fills electric pile.

When the charging pile works, the electric push rod 51 is in a contraction state and has no stroke initially, and the air grid 4 is in a closing state; a group of charging pile modules are powered on to operate, meanwhile, the corresponding electric push rods 51 are started, the electric push rods 51 drive the first connecting rods 52 to move forwards, the second connecting rods 53 are driven by the first connecting rods 52 to move forwards, and the second connecting rods 53 drive the air grid blades 41 to rotate clockwise, so that the air grid 4 is opened; when the other group of charging pile modules stops operating, the electric push rod 51 corresponding to the group of charging modules 1 is controlled by the charging pile control system to delay the backward movement until the temperature in the charging pile air box 2 reaches the set temperature of the temperature sensor 7, so as to drive the first connecting rod 52 to move backward, the second connecting rod 53 is driven by the first connecting rod 52 to move backward, the second connecting rod 53 drives the air grid 4 to rotate counterclockwise, and the closing of the air grid 4 is completed. When the air grid 4 is closed, the air grid 4 forcibly separates hot air in the charging pile air box 2 from air outside the charging pile air box 2, so that the hot air can be effectively prevented from flowing back to the front end of the charging module 1 in a working state through the charging module 1 which does not work, and the unfavorable circulation flow of the hot air is formed; at the same time, it is also possible to avoid air passing through the non-operating charging modules 1 without exchanging heat with the operating charging pile modules.

After the air door is arranged, the air flow direction in the charging pile air box 2 can only be in an one-way mode through the air flow channel of the charging module 1 in the running state, and the air flow channel and the charging module 1 in the running state are subjected to heat exchange and then are discharged out of the cabinet through the air outlet fan 3. According to a thermodynamic calculation formula Q = CM delta T, (delta T is the temperature difference between the air inlet and the air outlet of the charging module 1), because the temperature of the air inlet of the charging module 1 is not influenced by the backflow factor of hot air in the air box any more, and the air is prevented from directly entering a charging air channel without exchanging heat with the charging module 1; the difference in temperature increase of module front end and module rear end air, when the air through the equal quality of module 1 that charges, the heat that the air was taken away increases, fills electric pile radiating efficiency and risees, fills electric pile and is used for radiating energy consumption to reduce.

The upright charging pile including two or more charging modules of the present invention is not limited to the above-described embodiments, and in other embodiments, a damper may be provided at an inlet of the airflow passage of each charging module, or may be installed at a middle position of the airflow passage if the internal space of the charging module allows; or, in other embodiments, the air door may also adopt a revolving door, a rotating shaft of the revolving door is located in the middle of the door panel and is rotatably installed on a middle symmetrical line of the air flow channel, and at this time, a speed reduction motor of the driving mechanism; or, in other embodiments, the air door can also be a sliding door which can move straightly, so that the driving mechanism only drives the door plate to reciprocate linearly to realize the opening and closing of the air flow channel; or in other embodiments, the air door is a roller shutter door, the driving mechanism drives a scroll of the roller shutter door to rotate to fold and put down the roller shutter door, and the driving mechanism is a stepping motor at the moment.

The transmission cooperation of driving plate and air grid blade also can adopt other forms, for example be provided with rack structure on the driving plate, be equipped with gear structure on the transmission end of air grid blade, the driving plate passes through rack structure and gear structure's meshing with the air grid blade and realizes the transmission, drives the rotation of air grid blade when driving plate rectilinear movement, can realize the switch of air grid.

The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be embraced therein.

Claims

1. A direct current charging pile comprising more than two charging modules comprises:

a housing;

the charging modules (1) are arranged in parallel, and airflow channels communicated with two ends of the charging modules (1) are arranged in each charging module (1);

the heat dissipation system is used for dissipating heat of the charging module (1);

characterized by, the cooling system includes:

the charging pile air box (2) is positioned at one end of each charging module (1) and is in butt joint with one end of each airflow channel of each charging module (1);

the fan (3) is arranged on the charging pile air box (2) and is used for promoting air to flow from one end of the airflow channel to the end, where the charging pile air box (2) is located, of the airflow channel during operation;

the air door is arranged at one end of the air flow channel of each charging module (1) and can seal and open the corresponding air flow channel;

and the control system is connected with the driving mechanism, and controls the driving mechanism to act so that the air door corresponding to the charging module (1) in the running state is in an open state and the air door corresponding to the charging module (1) in the stopping state is in a closed state when part of the plurality of charging modules (1) is in the stopping state and part of the plurality of charging modules is in the running state.

2. The direct current charging pile comprising more than two charging modules according to claim 1, characterized in that the fan (3) is in the extension direction of the airflow channel.

3. The direct current charging pile comprising more than two charging modules according to claim 1, wherein the charging modules (1) are multiple and divided into a plurality of groups, each group of charging modules (1) is started or stopped simultaneously, the number of driving mechanisms is equal to the number of groups of charging modules (1), and the air doors of two or more charging modules (1) in the same group share one driving mechanism.

4. A dc charging post comprising more than two charging modules according to any of claims 1-3, characterized in that the air door is arranged at the end of the air flow channel where the charging post bellows (2) is arranged.

5. DC charging post according to claim 4, comprising two or more charging modules, characterized in that the driving means are arranged in the charging post bellows (2).

6. The direct current charging pile comprising more than two charging modules according to any one of claims 1 to 3, wherein the air door is a wind grid (4), the wind grid (4) comprises a plurality of wind grid blades (41) rotatably mounted at one end of the airflow channel, and each wind grid blade (41) can open and close the corresponding airflow channel when rotating.

7. The direct-current charging pile comprising more than two charging modules according to claim 6, wherein the charging modules (1) are cuboid, the airflow channel extends along the length direction of the cuboid, the charging modules (1) are arranged in parallel at intervals in the thickness direction, the rotation axis of the air grid blade (41) extends along the height direction of the cuboid charging modules (1), and the driving mechanism is in transmission connection with the end parts of the air grid blades (41) of the same air grid (4).

8. The direct current charging pile comprising more than two charging modules according to claim 7, wherein the top and the bottom of one end of the charging module (1) in the length direction are relatively fixed with a wind fence mounting plate (40), and the rotating shaft of a wind fence blade (41) is rotatably mounted on the wind fence mounting plate (40).

9. The direct-current charging pile comprising more than two charging modules according to claim 6, wherein the driving mechanism is a linear driving mechanism which outputs linear motion, the linear driving mechanism is directly or indirectly connected with a transmission plate, the extending direction of the transmission plate is consistent with the arrangement direction of a plurality of air grid blades (41) of the same air door, one end of a rotating shaft of the plurality of air grid blades (41) of the air grid (4) is provided with an eccentric stirring end (42), the transmission plate is provided with a pushing and pulling structure matched with the stirring end (42), and when the transmission plate linearly reciprocates, the pushing and pulling structure pushes and pulls the stirring end (42), so that the air grid blades (41) rotate around the rotating shaft in a reciprocating manner.

10. The direct current charging pile comprising more than two charging modules according to any one of claims 1 to 3, wherein the heat dissipation system further comprises a temperature sensor (7), the temperature sensor (7) is connected with the control system, the temperature sensor (7) is used for detecting the temperature inside the airflow channel, and when a part of the charging modules (1) is stopped and the corresponding temperature sensor (7) detects that the temperature is lower than a set temperature, the control system controls the air doors corresponding to the part of the stopped charging modules (1) to be closed.