Direct current charger host

Through reasonable layout and partition design, the problems of line crossing and insufficient heat dissipation in the DC charger host are solved, electromagnetic interference is reduced, heat dissipation efficiency is improved, and maintenance is facilitated.

CN223420523UActive Publication Date: 2025-10-10SHAANXI GREEN ENERGY ELECTRONIC TECH CO LTD
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Patent Information

Application Number
CN202422741831.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-11
Publication Date
2025-10-10
Estimated Expiration
2034-11-11

AI Technical Summary

Technical Problem

The existing DC charger host lacks a reasonable layout, resulting in line crossing and congestion, increasing the risk of electrical failure and insufficient heat dissipation.

Method used

A reasonable layout design is adopted to divide the charger host into independent parts, separate AC and DC, use axial flow fans to optimize heat dissipation, and connect electrical components through copper busbars to ensure smooth flow of cooling air.

Benefits of technology

It achieves clear partitioning of AC and DC circuits, reduces electromagnetic interference, improves heat dissipation efficiency and equipment reliability, and facilitates maintenance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the field of chargers, and discloses a DC charger host. Comprising a charger cabinet, a control module, an AD-DC conversion module and a power module are arranged in the charger cabinet, a front cabinet door is arranged on one side of the charger cabinet, a rear cabinet door is arranged on the other side of the charger cabinet, the front cabinet door and the rear cabinet door are fixedly connected with the charger cabinet, an axial flow fan is arranged on the side, close to the AD-DC conversion module, of the rear cabinet door, and the axial flow fan is fixedly connected with the charger cabinet. The axial flow fan is detachably connected with the rear cabinet door, the control module, the AD-DC conversion module and the power module are divided into independent parts and are connected through cables according to the current direction, alternating current is converted into direct current, electromagnetic interference between the alternating current and the direct current is prevented, the axial flow fan can be optimized and the power can be adjusted according to the heating conditions of different parts, and the service life of the axial flow fan is prolonged. Therefore, the optimal heat dissipation effect is achieved, and the technical problems that in the prior art, a direct-current charger host lacks reasonable layout, so that lines are crossed and crowded, and the electrical fault risk is increased are solved.
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Description

Technical Field

[0001] The utility model belongs to the technical field of chargers and relates to a DC charger host. Background Art

[0002] With the continuous development of the electric vehicle market, the power demand for DC chargers continues to increase. To meet the requirements of high power output, the electrical components and circuit structures within the charger host have become more complex. Generally speaking, the increase in power requires a larger heat dissipation area and stronger heat dissipation capacity, which leads to a gradual increase in the size of the entire cabinet. An unreasonable layout may result in a large amount of idle space or wasted space within the cabinet. On the one hand, some areas may be too compact, which is not conducive to heat dissipation and maintenance; on the other hand, some areas may be too open, not fully utilizing the cabinet volume. Existing DC charger hosts lack reasonable layout planning, and different functional units may be haphazardly distributed within the cabinet. For example, the power module, control module, and heat dissipation module may not be arranged according to the optimal electrical connection and heat flow path, resulting in crossed and crowded wiring, which not only affects the appearance but also increases the risk of electrical failure.

[0003] Therefore, the present invention proposes a DC charger host, which rationally arranges the units of the charger host so that the heat flow can flow more smoothly, and the AC and DC lines are clearly zoned to avoid line crossing and reduce mutual interference. Utility Model Content

[0004] The purpose of the utility model is to provide a DC charger host to solve the technical problem in the prior art that the DC charger host lacks a reasonable layout, resulting in line crossing and congestion, and increasing the risk of electrical failure.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: A DC charger host includes: a charger cabinet, a control module, an AD-DC conversion module, and a power module are arranged in the charger cabinet, a front cabinet door is provided on one side of the charger cabinet, and a rear cabinet door is provided on the other side. The front cabinet door and the rear cabinet door are fixedly connected to the charger cabinet, and an axial flow fan is provided on the side of the rear cabinet door close to the AD-DC conversion module. The axial flow fan is detachably connected to the rear cabinet door. The control module, the AD-DC conversion module, and the power module are connected by cables according to the current direction to convert AC power into DC power.

[0006] Furthermore, the control module includes a molded case circuit breaker, an AC contactor and a control unit; the molded case circuit breaker, AC contactor and control unit are arranged in sequence from bottom to top in the charger cabinet, a copper busbar is provided between the molded case circuit breaker and the AC contactor, a copper busbar is provided between the AC contactor and the control unit, the copper busbar is fixedly connected to the charger cabinet, the molded case circuit breaker is used to connect to the AC input wiring, and the power module is used to connect to the DC output wiring.

[0007] Furthermore, a partition plate is provided between the control unit and the AD-DC conversion module, and the partition plate is fixedly installed in the charger cabinet along the vertical direction.

[0008] Furthermore, the front cabinet door includes a left front cabinet door and a right front cabinet door; the left front cabinet door and the right front cabinet door are both hingedly connected to the charger cabinet.

[0009] Furthermore, dust-proof cotton is provided on the left front cabinet door; the dust-proof cotton is fixedly connected to the left front cabinet door through a connecting piece.

[0010] Furthermore, the right front cabinet door is provided with interlocking louvers, and the interlocking louvers are fixedly connected to the right front cabinet door via a connecting piece.

[0011] Furthermore, a through hole and a control panel are provided on the right front cabinet door. The control panel is movably connected to the through hole and is installed on the upper end of the interlocking louver.

[0012] Furthermore, the rear cabinet door includes a left rear cabinet door and a right rear cabinet door; the left rear cabinet door and the right rear cabinet door are both hingedly connected to the charger cabinet.

[0013] Furthermore, the axial flow fan is arranged in the left rear cabinet door, and the axial flow fan is detachably connected to the left rear cabinet door.

[0014] Furthermore, the axial flow fan is arranged in the right rear cabinet door, and the axial flow fan is detachably connected to the right rear cabinet door.

[0015] Compared with the prior art, the present invention has the following beneficial technical effects:

[0016] The utility model provides a DC charger host, in which the air inlet of the front cabinet door is open-type, which can maximize the air inlet area, ensure that a large amount of cold air can quickly enter the interior of the charger cabinet, and provide a sufficient cooling air source for the devices in the charger cabinet. The air outlet of the rear cabinet door is an independent axial flow fan, which can be optimized according to the heating conditions of different parts and the power of the axial flow fan can be adjusted to achieve the best heat dissipation effect.

[0017] The utility model provides a DC charger host, which divides the charger cabinet into independent parts, thereby realizing AC and DC separation, which can effectively prevent electromagnetic interference between AC and DC, and also facilitates maintenance and management of different parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a front view of a DC charger host of the utility model;

[0020] Figure 2 This is a rear view of a DC charger host of the present utility model;

[0021] Figure 3 Schematic diagram of current flow in an embodiment of the present utility model.

[0022] Reference numerals:

[0023] 1-Charger cabinet; 2-Front cabinet door; 21-Left front cabinet door; 22-Right front cabinet door; 221-Through hole; 222-Control panel; 3-Rear cabinet door; 31-Left rear cabinet door; 32-Right rear cabinet door; 4-Axial flow fan; 5-Moulded case circuit breaker; 51-AC input wiring; 52-DC output wiring; 6-AC contactor; 7-Control unit; 8-Partition plate; 9-Dustproof cotton; 10-Interlocking louvers. DETAILED DESCRIPTION

[0024] In order to help those skilled in the art better understand the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0025] It should be noted that the terms "first", "second", and the like in the description and claims of the utility model and the above drawings are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the utility model described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof, such as a process, method, system, product or device including a series of steps or units, do not have to be limited to the clearly listed steps or units, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0026] The utility model will be described in further detail below in conjunction with the drawings:

[0027] Embodiment 1

[0028] The utility model provides a kind of direct current charger host computer, including charger cabinet 1, control module is arranged in the charger cabinet 1, AD-DC conversion module, power module, the side of the charger cabinet 1 is provided with front cabinet door 2, the other side is provided with rear cabinet door 3, the front cabinet door 2 and rear cabinet door 3 are fixedly connected with charger cabinet 1, the side of rear cabinet door 3 close to AD-DC conversion module is provided with axial fan 4, the axial fan 4 is detachably connected with rear cabinet door 3, control module, AD-DC conversion module, power module are connected by cable according to the direction of electric current, AC is converted into DC.

[0029] Specifically, as Figure 1 Shown, a kind of direct current charger host computer includes control module, AD-DC conversion module, power module, control module is located at the right side of charger cabinet 1, is connected with AC input wiring, AC is transmitted to AD-DC conversion module.

[0030] AD-DC conversion module and power module are located at the left side of charger cabinet 1, and AD-DC conversion module is located at the upper end of power module, the input of AD-DC conversion module is AC, and the output is DC, DC enters power module and outputs DC of different power levels to meet the charging demand, and the left and right sides of charger cabinet 1 are separated by partition plate 8.

[0031] The front end of charger cabinet 1 is provided with front cabinet door 2, and the rear end is provided with rear cabinet door 3, the front cabinet door 2 is air inlet, is provided with dustproof cotton 9 and interlaced louver 10, the rear cabinet door 3 is air outlet, is provided with axial fan 4, reduces the overall temperature of direct current charger host computer by using axial fan 4 through partition control, improves reliability.

[0032] Embodiment 2

[0033] The present invention provides a DC charger host, comprising a charger cabinet 1, within which a control module, an AD-DC conversion module, and a power module are disposed. The control module comprises a molded case circuit breaker 5, an AC contactor 6, and a control unit 7. The molded case circuit breaker 5, the AC contactor 6, and the control unit 7 are sequentially disposed within the charger cabinet 1 from bottom to top. A copper busbar is disposed between the molded case circuit breaker 5 and the AC contactor 6, and between the AC contactor 6 and the control unit 7. The copper busbar is fixedly connected to the charger cabinet 1. The molded case circuit breaker 5 is used to connect to the AC input wiring 51, and the power module is used to connect to the DC output wiring 52.

[0034] Specifically, if Figure 1 He Ru Figure 2 As shown, the DC charger main unit is divided into a control module, an AD-DC conversion module, and a power module to reduce electromagnetic interference and improve heat dissipation and reliability. The AC input wiring 51 is located in the lower right corner of the charger cabinet 1. The control module's molded case circuit breaker 5 is located above the AC input wiring 51. The AC contactor 6 is located above the molded case circuit breaker 5. The control unit 7 is located above the AC contactor 6 and in the upper right corner of the charger cabinet 1. The molded case circuit breaker 5 and the AC contactor 6 are connected using a copper busbar and cable, and the AC contactor 6 and the control unit 7 are also connected using a copper busbar and cable.

[0035] The AD-DC conversion module is located at the upper left corner of the charger cabinet 1 , and the power module is located at the lower end of the AD-DC conversion module. A DC output connection 52 is provided at the lower end of the power module.

[0036] The AD-DC converter module converts AC power into DC power through rectification, filtering, and voltage regulation. Rectification uses rectifiers such as diodes and bridge rectifiers to convert the positive and negative half-cycles of AC power into positive and negative DC pulses, respectively. Since DC power must flow in one direction, a bridge rectifier is typically used to convert both half-cycles of AC power into positive DC pulses.

[0037] Filtering: The rectified DC pulses contain some AC components, which are removed using filters such as capacitors and inductors. Voltage stabilization: Adjusts the output voltage to maintain it within a set range based on load changes and input voltage fluctuations.

[0038] The front cabinet door 2 is located at the front end of the charger cabinet 1, and the rear cabinet door 3 is located at the rear end of the charger cabinet 1. The front cabinet door 2 includes a left front cabinet door 21 and a right front cabinet door 22. The left front cabinet door 21 is located on the side close to the AD-DC converter module and is equipped with dustproof cotton 9. The dustproof cotton 9 is detachably connected to the charger cabinet 1 via a connector. Air passes through the dustproof cotton 9 and enters the AD-DC converter module and power module for heat dissipation.

[0039] The right front door 22 is located near the control module and has a through-hole 221 and a control panel 222. The control panel 222 is hingedly connected to the through-hole 221 and fixed to the charger cabinet 1. The control module can be operated by opening the control panel 222 through the through-hole 221. Louvers 10 are located near the lower end of the right front door 22. Similarly, air passing through the louvers 10 dissipates heat from the molded case circuit breaker 5 and the AC contactor 6.

[0040] The rear cabinet door 3 includes a left rear cabinet door 31 and a right rear cabinet door 32. The left front cabinet door 21, the right front cabinet door 22, the left rear cabinet door 31 and the right rear cabinet door 32 are all hinged to the charger cabinet 1. An axial flow fan 4 is provided in the left rear cabinet door 31 and the right rear cabinet door 32, and the axial flow fan 4 is detachably connected to the left rear cabinet door 31 and the right rear cabinet door 32, which is convenient for replacing the axial flow fan 4. The axial flow fan 4 brings out the heat in the corresponding module, realizes independent heat discharge, and will not affect other positions due to excessive heat in a certain part.

[0041] In summary, if Figure 3 As shown, the air inlet of the front cabinet door 2 is an open design, which can maximize the air inlet area, ensure that a large amount of cold air can quickly enter the interior of the charger cabinet 1, and provide sufficient cooling air source for the devices in the charger cabinet 1. The air outlet of the rear cabinet door 3 is an independent axial flow fan 4, which can be optimized according to the heating conditions of different parts and adjust the power of the axial flow fan 4 to achieve the best heat dissipation effect.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A DC charger host, characterized by: The invention comprises a charger cabinet (1), wherein a control module, an AD-DC conversion module, and a power module are arranged in the charger cabinet (1); a front cabinet door (2) is arranged on one side of the charger cabinet (1), and a rear cabinet door (3) is arranged on the other side; the front cabinet door (2) and the rear cabinet door (3) are fixedly connected to the charger cabinet (1); an axial flow fan (4) is arranged on the side of the rear cabinet door (3) close to the AD-DC conversion module; the axial flow fan (4) is detachably connected to the rear cabinet door (3); the control module, the AD-DC conversion module, and the power module are connected by cables according to the current direction to convert alternating current into direct current.

2. The DC charger host according to claim 1, characterized in that: The control module comprises a molded case circuit breaker (5), an AC contactor (6) and a control unit (7); The molded case circuit breaker (5), the AC contactor (6) and the control unit (7) are sequentially arranged in the charger cabinet (1) from bottom to top; a copper busbar is arranged between the molded case circuit breaker (5) and the AC contactor (6); a copper busbar is arranged between the AC contactor (6) and the control unit (7); the copper busbar is fixedly connected to the charger cabinet (1); the molded case circuit breaker (5) is used to connect to the AC input wiring (51); and the power module is used to connect to the DC output wiring (52).

3. The DC charger host according to claim 2, characterized in that: A partition plate (8) is provided between the control unit (7) and the AD-DC conversion module, and the partition plate (8) is fixedly mounted in the charger cabinet (1) along a vertical direction.

4. The DC charger host according to claim 3, characterized in that: The front cabinet door (2) comprises a left front cabinet door (21) and a right front cabinet door (22); The left front cabinet door (21) and the right front cabinet door (22) are both hingedly connected to the charger cabinet (1).

5. The DC charger host according to claim 4, characterized in that: The left front cabinet door (21) is provided with dustproof cotton (9), and the dustproof cotton (9) is fixedly connected to the left front cabinet door (21) via a connecting piece.

6. The DC charger host according to claim 4, characterized in that: The right front cabinet door (22) is provided with interlocking louvers (10), and the interlocking louvers (10) are fixedly connected to the right front cabinet door (22) via a connecting piece.

7. The DC charger host according to claim 6, characterized in that: The right front cabinet door (22) is provided with a through hole (221) and a control panel (222), and the control panel (222) is movably connected to the through hole (221) and is mounted on the upper end of the interlocking louver (10).

8. The DC charger host according to claim 1, characterized in that: The rear cabinet door (3) comprises a left rear cabinet door (31) and a right rear cabinet door (32); The left rear cabinet door (31) and the right rear cabinet door (32) are both hingedly connected to the charger cabinet (1).

9. The DC charger host according to claim 8, characterized in that: The axial flow fan (4) is arranged in the left rear cabinet door (31), and the axial flow fan (4) is detachably connected to the left rear cabinet door (31).

10. The DC charger host according to claim 8, characterized in that: The axial flow fan (4) is arranged in the right rear cabinet door (32), and the axial flow fan (4) and the right rear cabinet door (32) are detachably connected.