CN219123949U

CN219123949U - Main cabinet of direct-current charger

Info

Publication number: CN219123949U
Application number: CN202223335231.7U
Authority: CN
Inventors: 唐锦睿; 陈风雷
Original assignee: Xi'an Wanma Smart New Energy Technology Co ltd
Current assignee: Xi'an Wanma Smart New Energy Technology Co ltd
Priority date: 2022-12-12
Filing date: 2022-12-12
Publication date: 2023-06-02
Anticipated expiration: 2032-12-12

Abstract

The utility model discloses a direct-current charger main cabinet, which relates to the technical field of direct-current chargers and comprises an alternating-current input unit, a charging module, a control unit, a power distribution unit, a direct-current output unit, a ventilation and heat dissipation unit, an air inlet and an air outlet; the alternating current inlet wire is connected to the alternating current input unit from the lower part of the first surface, and an alternating current cable connected with an alternating current port of the charging module passes through the middle part of the first surface; the direct current output line of the charging module is connected to the power distribution unit along the third panel and/or the fourth panel; air outlets are formed in two sides of the upper part of the second surface, and ventilation and heat dissipation units are arranged at the air outlets; and a direct current output unit connected with the power distribution unit is arranged below the power distribution unit, and a direct current outlet wire of the direct current output unit is led out from the lower part of the second surface. Through each unit reasonable layout in the cabinet, each unit in having solved prior art arrange unreasonably inadequately, the interference between the alternating current-direct current line, the poor scheduling problem of heat dissipation has improved the reliability of equipment.

Description

Main cabinet of direct-current charger

Technical Field

The utility model relates to the technical field of direct-current chargers, in particular to a direct-current charger main cabinet.

Background

The direct current charger main machine mainly comprises a cabinet body, an alternating current input unit, a charging module, a control unit and the like. The existing direct current charger main machine often has the defects that each unit in the cabinet is not reasonably arranged, so that the overall size of the cabinet is large, electromagnetic compatibility is not up to standard due to interference between alternating current and direct current lines, and the heat dissipation effect caused by no effective air duct is poor, the reliability of equipment is affected, and the like.

Disclosure of Invention

Aiming at the technical problem that the arrangement of each unit in the cabinet body of the direct-current charger main machine cabinet is unreasonable, the utility model provides the direct-current charger main machine cabinet, and the problems of unreasonable arrangement of each unit, interference between alternating-current lines, poor heat dissipation and the like in the prior art are solved by reasonably arranging each unit in the cabinet, so that the reliability of equipment is improved. Through reasonable and compact layout, the cabinet is smaller in size, lower in cost and moderate in installation height and position of the charging module, so that the charging module is more convenient to maintain and replace in later period, and maintainability of equipment is improved.

In order to solve the problems, the technical scheme provided by the utility model is as follows:

a direct current charger main cabinet comprises a cabinet body, an alternating current input unit, a control unit, a charging module, a power distribution unit, a direct current output unit, a ventilation and heat dissipation unit, an air inlet and an air outlet; the cabinet body comprises a first surface, a second surface, a third panel and a fourth panel, wherein the first surface and the second surface are arranged oppositely; the first face, the third face, the second face and the fourth face are connected end to end in sequence; the charging device comprises a first surface, a second surface and a third surface, wherein a charging module is arranged at the upper part of the first surface, a control unit and an alternating current input unit are sequentially arranged at the middle part of the first surface, and air inlets are formed in two sides of the first surface; the alternating current inlet wire is connected to the alternating current input unit from the lower part of the first surface, and an alternating current cable connected with an alternating current port of the charging module passes through the middle part of the first surface; the direct current output line of the charging module is connected to the power distribution unit along the third panel and/or the fourth panel; air outlets are formed in two sides of the upper part of the second surface, and ventilation and heat dissipation units are arranged at the air outlets; the middle part of the second surface is provided with a power distribution unit, a direct current output unit connected with the power distribution unit is arranged below the power distribution unit, and a direct current outlet wire of the direct current output unit is led out from the lower part of the second surface.

Optionally, the portable electronic device further comprises a plastic shell cover plate, wherein the alternating current input unit is arranged on the plastic shell cover plate, and the plastic shell cover plate is arranged in the middle of the first surface.

Optionally, a wind shield is arranged at the lower part of the first surface, and a vent hole is arranged on the wind shield.

Optionally, the control unit includes a control board and an IO board, the control board is connected with the IO board, and the IO board is connected with the power distribution unit.

Optionally, the back of the charging module corresponds to the position of the ventilation and heat dissipation unit.

Optionally, the ventilation and heat dissipation unit adopts an axial flow fan and/or a centrifugal fan.

Optionally, a dustproof cotton is arranged at the air inlet.

Optionally, the control board and the IO board are both disposed on the first surface, and the IO board is disposed on the lower side of the control board.

Optionally, the charging module includes an ac-dc converter and a dc-dc converter that are sequentially connected, an input end of the ac-dc converter is an ac port of the charging module, and an output end of the dc-dc converter is connected with a dc output line of the charging module.

Optionally, the control unit is connected with the charging module through a CAN bus interface.

Compared with the prior art, the technical scheme provided by the utility model has the following beneficial effects:

(1) According to the direct-current charger main cabinet provided by the embodiment of the application, through the partition layout of the alternating-current input unit, the charging module, the control unit, the power distribution unit and the direct-current output unit, the problems of device interference and alternating-current and direct-current wiring interference are effectively solved, and the electromagnetic compatibility reaches the standard.

(2) According to the direct-current charger main cabinet provided by the embodiment of the application, through reasonable layout, the overall size of the cabinet is smaller, the height is lower, and the processing cost is reduced. The alternating current input unit and the direct current output unit leave sufficient space, and the wiring of a user is facilitated.

(3) The direct current charging machine main cabinet provided by the embodiment of the application is moderate in installation height position of the charging module, and is convenient to install and maintain. The control board in the control unit is highly integrated, the IO board replaces the traditional PDU scheme, design fault points are reduced, wiring is more convenient, reliability and maintainability of the control unit are improved, and system cost is reduced.

(4) According to the direct-current charger main cabinet provided by the embodiment of the application, the power distribution unit replaces a traditional PDU scheme, so that the system fault rate is greatly reduced, and the service efficiency of the charging module is improved.

(5) According to the direct-current charger main cabinet provided by the embodiment of the application, through the arrangement of the air inlet and the air outlet and each unit, and the design of the plastic shell cover plate and the wind shield, the temperature of each unit during working of each device is effectively reduced, the service life is prolonged, and the failure rate of the system is reduced.

Drawings

Fig. 1 is a schematic diagram of a main cabinet of a dc charger according to an embodiment of the present utility model.

Fig. 2 is a schematic diagram of a dc charger main cabinet according to a second embodiment of the present utility model.

Fig. 3 is a third schematic diagram of a main cabinet of a dc charger according to an embodiment of the present utility model.

Detailed Description

For a further understanding of the present utility model, the present utility model will be described in detail with reference to the drawings and examples.

The present application is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be noted that, for convenience of description, only the portions related to the utility model are shown in the drawings. The first, second, etc. words are provided for convenience in describing the technical scheme of the present utility model, and have no specific limitation, and are all generic terms, and do not constitute limitation to the technical scheme of the present utility model. It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. The technical schemes in the same embodiment and the technical schemes in different embodiments can be arranged and combined to form a new technical scheme without contradiction or conflict, which is within the scope of the utility model.

Example 1

Referring to fig. 1-3, this embodiment proposes a main cabinet of a dc charger, which includes a cabinet body 1, an ac input unit 4, a control unit 3, a charging module 2, a power distribution unit 5, a dc output unit 6, a ventilation and heat dissipation unit 7, an air inlet 106 and an air outlet 109; wherein the cabinet body 1 comprises a first surface, a second surface, a third panel and a fourth panel, wherein the first surface and the second surface are arranged oppositely; the first face, the third face, the second face and the fourth face are connected end to end in sequence; the upper part of the first surface is provided with a charging module 2, the middle part of the first surface is sequentially provided with a control unit 3 and an alternating current input unit 4, and both sides of the first surface are provided with air inlets 106; the alternating current inlet wire is connected to the alternating current input unit 4 from the lower part of the first surface, and an alternating current cable connected with an alternating current port of the charging module 2 of the alternating current input unit 4 passes through the middle part of the first surface; the direct current output line of the charging module 2 is connected to the power distribution unit 5 along the third panel and/or the fourth panel; air outlets 9 are formed in two sides of the upper part of the second surface, and ventilation and heat dissipation units 7 are arranged at the air outlets 9; the middle part of the second surface is provided with a power distribution unit 5, a direct current output unit 6 connected with the power distribution unit 5 is arranged below the power distribution unit 5, and a direct current outlet wire of the direct current output unit 6 is led out from the lower part of the second surface.

According to the arrangement, the overall size of the cabinet is smaller, the height is lower, and the charging module 2 is convenient to install and maintain. When the charger works, air flows through the air inlet 106, the control unit 3, the charging module 2 and the air outlet 109, so that heat dissipation of the control unit 3 and the charging module 2 is ensured. The alternating current incoming line and the alternating current cable are separated from the direct current outgoing line of the charging module 2 and the direct current outgoing line of the direct current output unit 6, and the alternating current and direct current outgoing lines are completely separated, so that the alternating current and direct current outgoing lines can be ensured not to interfere with each other.

As an alternative of this embodiment, the ac input unit 4 is mounted on the plastic cover 101, and the plastic cover 101 is disposed in the middle of the first surface, so that the ac input unit 4 is conveniently mounted.

As one of alternatives of this embodiment, a wind guard is provided at the lower portion of the first surface, and a vent hole is provided on the wind guard. The ventilation holes ensure the heat dissipation of the ac input unit 4, the power distribution unit 5, and the dc output unit 6.

As one of the alternatives of the present embodiment, the control unit 3 includes a control board and an IO board, the control board is connected to the IO board, and the IO board is connected to the power distribution unit. Compared with the traditional PDU scheme (relay array), the system failure rate is greatly reduced; the signal line connected with the IO board and the power distribution unit 5 is completely separated from the alternating current line and the direct current line, and the signal line and the alternating current line are not interfered with each other.

As an alternative of this embodiment, the back of the charging module 2 corresponds to the position of the ventilation and heat dissipation unit 7, so as to ensure that the charging module 2 on the first surface and the ventilation and heat dissipation unit 7 on the air outlet 109 on the second surface are located at the same height, which is beneficial to heat dissipation of the charging module 2.

As one of the alternatives of the embodiment, the ventilation and heat dissipation unit 7 adopts an axial flow fan and/or a centrifugal fan, so as to facilitate active ventilation and heat dissipation, improve heat dissipation effect and ensure stable and reliable working state of the cabinet body 1.

As one of the alternatives of the present embodiment, the air inlet 106 is provided with dust-proof cotton, which is used for filtering dust in the air flow, so as to prevent the dust from entering the cabinet body 1 along with the air flow, keep the interior of the cabinet body 1 clean and tidy, and prevent all the components in the cabinet body 1 from falling down dust, thereby affecting heat dissipation.

As one of the alternatives of the embodiment, the control board and the IO board are both disposed on the first surface, and the IO board is disposed on the lower side of the control board. The control unit 3 is used as an independent partition, the control panel is highly integrated, design fault points are reduced, wiring is more convenient, and the reliability and maintainability of the control unit 3 are improved.

As an alternative of this embodiment, the charging module 2 includes an ac-dc converter and a dc-dc converter that are sequentially connected, where an input end of the ac-dc converter is an ac port of the charging module, and an output end of the dc-dc converter is connected to a dc output line of the charging module 2. The AC-DC converter converts the AC power into DC power, and the DC-DC converter converts the DC power to form DC power with different voltage levels, such as 200V-1000V, so as to adapt to different charging requirements.

As one of the alternatives of the present embodiment, the control unit is connected to the charging module through a CAN bus interface. Specifically, the control unit 3 and the alternating current-direct current converter and the direct current-direct current converter of the charging module 2 are connected through a CAN bus interface; the method is used for controlling the AC-DC converter and the DC-DC converter, and performing optimization control on the AC-DC conversion and various parameter performance indexes in the DC-DC conversion process, so as to realize the output electric energy and control effect meeting the requirements.

Example 2

The embodiment provides a direct current charger main cabinet, and particularly relates to a split direct current charger main cabinet internal layout. The alternating current input unit 4 is installed below the right of the front side of the cabinet, the control unit 3 is installed in the left of the front side of the cabinet, the charging module 2 is installed above the front side of the cabinet, the power distribution unit 5 is installed in the middle of the rear side of the cabinet, the direct current output unit 6 is installed below the rear side of the cabinet, the air inlet 106 is located at the front door, the air outlet 109 is located at the rear door, the ventilation and heat dissipation unit 7 is located at the rear door air outlet 109 and corresponds to the charging module 2.

According to the layout, the user incoming line is connected with the alternating current incoming line from the lower part of the front door to the alternating current input unit 4, the user outgoing line is connected with the direct current outgoing line from the lower part of the rear side of the cabinet to the direct current output unit 6, a cable between the alternating current input unit 4 and an alternating current port of the charging module 2 passes through the middle of the cabinet, a direct current port outgoing line of the charging module 2 is connected with the power distribution unit 5 along a rear side plate of the cabinet, and the alternating current and direct current outgoing lines are completely separated to ensure that the alternating current and direct current outgoing lines do not interfere with each other.

According to the layout, the air inlet 106 is positioned at the front door, the air outlet 109 is positioned at the rear door, the ventilation and heat dissipation unit 7 is positioned at the rear door air outlet 109 and corresponds to the charging module 2, so that air flow is ensured to pass through the air inlet 106, the control unit 3, the charging module 2 and the air outlet 109, and heat dissipation of the control unit 3 and the charging module 2 is ensured; meanwhile, ventilation holes are formed in the plastic shell cover 101, the left front wind shield 103 and the right front wind shield 102, so that heat dissipation of the alternating current input unit 4, the power distribution unit 5 and the direct current output unit 6 is guaranteed.

According to the layout, the overall size of the cabinet is smaller, and the height is lower. The existing charging module 2 has the mass of about 15kg, and the installation height position of the charging module 2 is moderate, so that the charging module 2 is more convenient to install and maintain.

The specific arrangement is shown in figures 1-3, and figure 1 is equivalent to a layout schematic diagram I in a front side cabinet of a main machine of the split direct-current charger; fig. 2 is a schematic diagram ii of the layout in the cabinet at the front side of the main unit of the split type dc charger; fig. 3 is a schematic diagram of the layout in the cabinet at the rear side of the main unit of the split type direct current charger.

The device comprises a cabinet body of a cabinet with the number 1-, a charging module with the number 2-, a control unit with the number 3-, an alternating current input unit with the number 4-, a power distribution unit with the number 5-, a direct current output unit with the number 6-, a ventilation and heat dissipation unit with the number 7-, a plastic shell cover plate with the number 101-, a front right wind shield with the number 102-right, a front left wind shield with the number 103-left, a front right door plate with the number 104-right, a front left door plate with the number 105-left, an air inlet with the number 106-inlet, a rear right door plate with the number 107-right, a rear left door plate with the number 108-left and an air outlet with the number 109-.

As shown in fig. 2, the ac input unit 4 is installed at the right lower side of the front side of the cabinet, and a sufficient space is left for facilitating the user to perform ac line connection.

The control units 3 are centrally arranged in the left middle position of the front side of the cabinet and are independent partitions. The upper control board in the control unit 3 is highly integrated, so that design fault points are reduced, wiring is more convenient, and the reliability and maintainability of the control unit 3 are improved. The lower side IO board in the control unit 3 is used as an interface unit of the power distribution unit 5, replaces the traditional PDU scheme, and can effectively reduce the system cost.

The charging module 2 is installed above the front side of the cabinet, and the installation position is moderate in height, so that the charging module 2 is convenient to install and maintain. The back of the charging module 2 corresponds to the position of the ventilation and heat dissipation unit 7, and heat dissipation of the charging module 2 is facilitated.

As shown in fig. 3, the power distribution units 5 are centrally disposed at a rear-side intermediate position of the cabinet. The power distribution unit 5 is based on the intelligent power distribution algorithm of the contactor 'Mobius loop belt', so that the use efficiency of the charging module 2 is improved. Compared to the conventional PDU scheme (relay array), the system failure rate is greatly reduced.

The dc output unit 6 is installed below the rear side of the cabinet, and has enough space to facilitate the dc output connection of the user. The air inlet 106 is positioned on the front door plate, the air inlet 106 is provided with dustproof cotton, the air outlet 109 is positioned on the upper side of the rear door plate, the air outlet 109 is provided with the ventilation and heat dissipation unit 7, and the ventilation and heat dissipation unit 7 adopts an axial flow fan. The outside of the alternating current input unit 4 is provided with a plastic cover plate 101 and a right front wind shield 102, and the lower side of the control unit 3 is provided with a left front wind shield 103. According to the arrangement, when the charger works, air flows through the air inlet 106, the control unit 3, the charging module 2 and the air outlet 109, so that heat dissipation of the control unit 3 and the charging module 2 is ensured; meanwhile, ventilation holes are formed in the plastic shell cover 101, the left front wind shield 103 and the right front wind shield 102, so that heat dissipation of the alternating current input unit 4, the power distribution unit 5 and the direct current output unit 6 is guaranteed.

The utility model and its embodiments have been described above by way of illustration and not limitation, and the utility model is illustrated in the accompanying drawings and described in the drawings in which the actual structure is not limited thereto. Therefore, if one of ordinary skill in the art is informed by this disclosure, the structural mode and the embodiments similar to the technical scheme are not creatively designed without departing from the gist of the present utility model.

Claims

1. The direct-current charger main cabinet is characterized by comprising a cabinet body, an alternating-current input unit, a control unit, a charging module, a power distribution unit, a direct-current output unit, a ventilation and heat dissipation unit, an air inlet and an air outlet; the cabinet body comprises a first surface, a second surface, a third panel and a fourth panel, wherein the first surface and the second surface are arranged oppositely; the first face, the third face, the second face and the fourth face are connected end to end in sequence; the charging device comprises a first surface, a second surface and a third surface, wherein a charging module is arranged at the upper part of the first surface, a control unit and an alternating current input unit are sequentially arranged at the middle part of the first surface, and air inlets are formed in two sides of the first surface; the alternating current inlet wire is connected to the alternating current input unit from the lower part of the first surface, and an alternating current cable connected with an alternating current port of the charging module passes through the middle part of the first surface; the direct current output line of the charging module is connected to the power distribution unit along the third panel and/or the fourth panel;

air outlets are formed in two sides of the upper part of the second surface, and ventilation and heat dissipation units are arranged at the air outlets; the middle part of the second surface is provided with a power distribution unit, a direct current output unit connected with the power distribution unit is arranged below the power distribution unit, and a direct current outlet wire of the direct current output unit is led out from the lower part of the second surface.

2. The direct current charger main cabinet of claim 1, further comprising a plastic cover plate, wherein the alternating current input unit is mounted on the plastic cover plate, and the plastic cover plate is disposed in the middle of the first surface.

3. The direct current charger main cabinet of claim 1, wherein a wind deflector is arranged at the lower part of the first surface, and a vent hole is arranged on the wind deflector.

4. The direct current charger main cabinet of claim 1, wherein the control unit comprises a control board and an IO board, the control board is connected to the IO board, and the IO board is connected to the power distribution unit.

5. The direct current charger main cabinet of claim 1, wherein the charging module back corresponds in position to the ventilation and heat dissipation unit.

6. A main cabinet of a direct current charger according to any one of claims 1 to 5, wherein the ventilation and heat dissipation unit is an axial fan and/or a centrifugal fan.

7. A main cabinet of a direct current charger according to any one of claims 1 to 5, wherein dust-proof cotton is disposed at the air inlet.

8. The direct current charger main cabinet of claim 4, wherein the control board and the IO board are both disposed on the first surface, and the IO board is disposed on the lower side of the control board.

9. The main cabinet of a dc charger according to any one of claims 1 to 8, wherein the charging module comprises an ac-dc converter and a dc-dc converter connected in sequence, an input end of the ac-dc converter is an ac port of the charging module, and an output end of the dc-dc converter is connected to a dc output line of the charging module.

10. The direct current charger main cabinet of claim 9, wherein the control unit is connected to the charging module via a CAN bus interface.