7KW direct current charger

By optimizing the cabinet structure and air guide component design, the problems of large size and high cost of DC chargers have been solved, achieving miniaturization and efficient charging to meet the needs of new energy vehicle users.

CN223750691UActive Publication Date: 2026-01-02ZHUHAI YINJI TECH CO LTD
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Patent Information

Application Number
CN202520457416.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-17
Publication Date
2026-01-02
Estimated Expiration
2035-03-17

AI Technical Summary

Technical Problem

Existing DC chargers are large, expensive, and slow, failing to meet the needs of new energy vehicle users for small, fast, and low-cost charging.

Method used

A 7KW DC charger was designed. By optimizing the cabinet structure and air duct components, the charging components were integrated and installed. Combined with the inclined heat dissipation structure of the air duct components, the size was reduced while ensuring performance and cost, and it also supports rapid installation and control.

Benefits of technology

This technology enables miniaturization, low cost, and high-efficiency charging of DC chargers, ensuring stable equipment operation and high charging efficiency.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN223750691U_ABST
    Figure CN223750691U_ABST
Patent Text Reader

Abstract

The utility model discloses a 7KW direct current charger which comprises a cabinet body, a cabinet door body and an air guide assembly. According to the utility model, the cabinet main body, the cabinet door main body and the air guide assembly are arranged, i.e., the first connecting piece and the second connecting piece are arranged in the cabinet main body, so that the integrated installation of charging assemblies required by the direct current charger is realized, the subsequently formed direct current charger is small in size and low in cost, and the cost is reduced on the premise that the performance is ensured. According to the technical scheme, modules of all parts can be matched according to needs, meanwhile, the cabinet door main body can achieve rapid installation of the control mainboard through the mainboard connecting plate so that follow-up intelligent control activities can be conveniently carried out, the first guide plate and the second guide plate arranged in the air guide assembly can be matched, inclined heat dissipation can be assisted, heat guiding-out can be accelerated, and it is guaranteed that the running state of the assemblies in the cabinet body is stable.
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Description

TECHNICAL FIELD

[0001] The utility model relates to charging device technical field, concretely is a 7KW direct current charger. BACKGROUND

[0002] The charger is the equipment for new energy electric automobile power battery charging, and the charger can be said to be the "transit station" of electric energy from the power grid to the electric automobile, the charger is divided into alternating current charger and direct current charger, the alternating current charger is converted into the current and voltage in the accessible range of the electric automobile on -vehicle charger of the power grid alternating current, and then the on -vehicle charger is converted and the electric automobile storage battery is charged, the direct current charger is converted into the adjustable direct current of the electric automobile power battery accessible and directly charges the electric automobile storage battery.

[0003] Compared with the direct current charger, the alternating current charger has low cost, but low efficiency and slow charging, in order to seek high output power and improve the charging speed, 30KW, 120KW, 360KW, 480KW direct current chargers are developed, which also gradually increases the size and cost of the charger.

[0004] At present, along with the increase of new energy electric automobile market share, more flexible charging mode is needed, and new energy automobile users urgently need small size, relatively fast charging, relatively low cost new energy automobile charger to provide convenience for them. INVENTION CONTENTS

[0005] The utility model discloses a 7KW direct current charger to solve the problems in the above background.

[0006] In order to realize the above object, the utility model takes the following technical scheme: a 7KW direct current charger, including the cabinet, the cabinet door, the gas guide component, the emergency stop switch and the start key, the front side of the cabinet is hinged with the cabinet door, the gas guide component is installed on one side upper end in the cabinet, the emergency stop switch and the start key are installed to the right side of the cabinet, and the emergency stop switch and the start key are arranged oppositely.

[0007] Preferably, the cabinet includes a cabinet body, a heat dissipation hole, a hinge shaft, a first connecting piece, a second connecting piece, a charging gun connection hole and an indicator light plate, the heat dissipation hole is opened on the right side upper end of the cabinet body, the hinge shaft is fixed on the left side front end of the cabinet body, the first connecting piece is installed on the four sides of the cabinet body, the second connecting piece is installed on the left side of the cabinet body, the charging gun connection hole is opened on the lower end of the cabinet body, and the indicator light plate is arranged on the front side of the lower end of the cabinet body.

[0008] Preferably, the cabinet door comprises a cabinet door body, a hinge connecting piece, a bottom plate, a mainboard connecting plate and a wire binding plate, the hinge connecting piece is fixed on one side of the cabinet door body, and the hinge connecting piece is connected with the hinge shaft arranged on the left side of the cabinet body; the bottom plate is arranged at the lower end of the cabinet door body; the mainboard connecting plate is arranged in the cabinet door body; the wire binding plate is arranged on the upper end of the mainboard connecting plate; and the wire binding plate is fixed on the cabinet door body.

[0009] Preferably, the air guide assembly comprises a first mounting plate, a first side plate, a second side plate, a second mounting plate, a first guide plate and a second guide plate; the first mounting plate is arranged on the right side of the cabinet body; the first side plate and the second side plate are arranged on the both sides of the first mounting plate; the second mounting plate is arranged between the lower ends of the first side plate and the second side plate; the first guide plate is arranged between the upper ends of the first side plate and the second side plate; and the second guide plate is arranged between the inner lower ends of the first side plate and the second side plate.

[0010] Preferably, the first connecting piece is fixed on the four sides of the cabinet body, and the press-in nut is arranged on the middle part of the first connecting piece.

[0011] Preferably, the second connecting piece is fixed on the left side of the cabinet door body, and the press-in nut is arranged on the middle part of the second connecting piece.

[0012] Preferably, the indicator light plate is transversely bolted on the front side of the lower end of the cabinet body, and the transverse hollow groove is arranged in the middle part of the indicator light plate.

[0013] Preferably, the first guide plate and the second guide plate are arranged at equal distances from top to bottom between the first side plate and the second side plate, and the shapes of the first guide plate and the second guide plate are different.

[0014] Compared with the prior art, the cabinet body, the cabinet door body and the air guide assembly are arranged, the first connecting piece and the second connecting piece arranged in the cabinet body are used to realize integrated installation of the charging assembly required by the direct current charger, the direct current charger formed subsequently has small size and low cost, and each part module is matched as required under the premise of ensuring performance; meanwhile, the cabinet door body can realize quick installation of the control mainboard through the mainboard connecting plate, so that subsequent intelligent control activities can be carried out, and the first guide plate and the second guide plate arranged in the air guide assembly can assist in inclined heat dissipation and accelerate heat dissipation, so that the running state of the components in the cabinet body is stable.

[0015] The cabinet body, the cabinet door body and the air guide assembly are arranged, the first connecting piece and the second connecting piece arranged in the cabinet body are used to realize integrated installation of the charging assembly required by the direct current charger, the direct current charger formed subsequently has small size and low cost, and each part module is matched as required under the premise of ensuring performance; meanwhile, the cabinet door body can realize quick installation of the control mainboard through the mainboard connecting plate, so that subsequent intelligent control activities can be carried out, and the first guide plate and the second guide plate arranged in the air guide assembly can assist in inclined heat dissipation and accelerate heat dissipation, so that the running state of the components in the cabinet body is stable. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The structure of the utility model is shown in the figure;

[0017] Figure 2 It is the side view three-dimensional structure schematic diagram of the utility model;

[0018] Figure 3 It is the cabinet body three-dimensional structure schematic diagram of the utility model;

[0019] Figure 4 It is the rear view three-dimensional structure schematic diagram of the cabinet door of the utility model;

[0020] Figure 5 It is the air guide assembly three-dimensional structure schematic diagram of the utility model;

[0021] Figure 6 It is the right view structure schematic diagram of the air guide assembly of the utility model;

[0022] Figure 7 It is the right view structure schematic diagram of the first guide plate of the utility model;

[0023] Figure 8 It is the right view structure schematic diagram of the second guide plate of the utility model.

[0024] In the drawing: cabinet body 1, cabinet body main body 11, heat dissipation hole 12, hinge shaft 13, first connecting piece 14, second connecting piece 15, charging gun connecting hole 16, indicator light plate 17, cabinet door 2, cabinet door main body 21, hinge connecting piece 22, bottom plate 23, main plate connecting plate 24, wire binding plate 25, air guide assembly 3, first mounting plate 31, first side plate 32, second side plate 33, second mounting plate 34, first guide plate 35, second guide plate 36, emergency stop switch 4, power-on key 5. DETAILED DESCRIPTION

[0025] In order to further explain the technical scheme of the utility model, the following will be described in detail through specific embodiments.

[0026] Please refer to Figures 1-2 The utility model provides a kind of 7KW direct current charger, including cabinet 1, cabinet door 2, air guide assembly 3, emergency stop switch 4 and power-on key 5, cabinet 1 front side is hinged with cabinet door 2, and air guide assembly 3 is installed on one side upper end in the inside of cabinet 1, emergency stop switch 4 and power-on key 5 are installed on the right side of cabinet 1, and emergency stop switch 4 and power-on key 5 are arranged oppositely.

[0027] Please refer to Figure 3The cabinet body 1 in the embodiment comprises a cabinet body main body 11, a heat dissipation hole 12, a hinge shaft 13, a first connecting piece 14, a second connecting piece 15, a charging gun connecting hole 16 and an indicator light plate 17. The heat dissipation hole 12 is formed on the right upper end of the cabinet body main body 11 and is uniformly distributed in a hexagonal hole shape. The hinge shaft 13 is fixedly connected to the front upper and lower ends of the left side of the cabinet body main body 11. The first connecting piece 14 is installed on the four sides of the inside of the cabinet body main body 11. The installation of the first connecting piece 14 can realize the auxiliary installation of the charging component. The second connecting piece 15 is installed on the left side of the inside of the cabinet body main body 11 and can be connected to the electric meter to realize the real-time detection of the charging capacity. Two charging gun connecting holes 16 are symmetrically formed on the lower end of the cabinet body main body 11. The indicator light plate 17 is arranged on the front side of the lower end of the cabinet body main body 11.

[0028] The first connecting piece 14 is fixedly welded along the four sides of the inside of the cabinet body main body 11. The pressure rivet nut is integrally welded to the middle of the four first connecting pieces 14. The pressure rivet nut can ensure the firmness of the relative connection state.

[0029] The second connecting piece 15 is fixedly welded along the left side of the inside of the cabinet door main body 21. The pressure rivet nut is integrally welded to the middle of the second connecting piece 15. The pressure rivet nut can ensure the firmness of the relative connection state.

[0030] The indicator light plate 17 is transversely bolted to the front side of the lower end of the cabinet body main body 11. The transverse hollow groove is formed in the middle of the indicator light plate 17. The transverse hollow groove can expose the indicator light and realize the eye-catching reminding activity.

[0031] Please refer to Figure 4 The cabinet door 2 in the embodiment comprises a cabinet door main body 21, a hinge connecting piece 22, a bottom plate 23, a mainboard connecting plate 24 and a wire binding plate 25. The hinge connecting piece 22 is fixedly arranged on the upper and lower ends of the right side of the inside of the cabinet door main body 21. The two hinge connecting pieces 22 are connected to the hinge shafts 13 arranged on the two sides of the outside of the cabinet body main body 11. Therefore, the cabinet door main body 21 and the cabinet body main body 11 can be stably connected and combined. The bottom plate 23 is fixedly arranged on the lower end of the cabinet door main body 21. Multiple through holes are equidistantly formed in the bottom of the bottom plate 23 to realize auxiliary heat dissipation. The mainboard connecting plate 24 is installed in the inside of the cabinet door main body 21. The wire binding plate 25 is arranged on the upper end of the mainboard connecting plate 24. The wire binding plate 25 is fixedly welded to the inside of the cabinet door main body 21.

[0032] Please refer to Figures 5-8The air guide assembly 3 in the embodiment comprises a first mounting plate 31, a first side plate 32, a second side plate 33, a second mounting plate 34, a first guide plate 35, and a second guide plate 36. The first mounting plate 31 is arranged on the right upper end inside the cabinet body 11 and opposite to the inner side of the heat dissipation hole 12. The first mounting plate 31 is welded with the first side plate 32 and the second side plate 33 on the left and right sides thereof. The first side plate 32 and the second side plate 33 are integrally provided with an inclined butt joint groove in the middle of the side edges thereof. The second mounting plate 34 is welded between the lower ends of the first side plate 32 and the second side plate 33. The second mounting plate 34 is provided with bolt butt joint holes on the left and right sides thereof. The first guide plate 35 is arranged between the upper ends of the first side plate 32 and the second side plate 33. The second guide plate 36 is arranged between the inner lower ends of the first side plate 32 and the second side plate 33. The left and right sides of the first guide plate 35 and the second guide plate 36 are respectively embedded in the inclined butt joint grooves in the middle of the side edges of the first side plate 32 and the second side plate 33.

[0033] The first guide plate 35 and the second guide plate 36 are arranged equidistantly from top to bottom between the first side plate 32 and the second side plate 33. The first guide plate 35 and the second guide plate 36 are not identical in shape. The bottom of the first guide plate 35 is bent. The upper and lower ends of the second guide plate 36 are oppositely bent. In this way, the first guide plate 35 and the second guide plate 36 can be stably installed and the inclined guide structure can be realized.

[0034] The working principle is as follows:

[0035] First, the hinge shaft 13 arranged on the left upper end of the front end of the cabinet body 11 is connected with the hinge connecting piece 22 arranged on the inner side of the cabinet door body 21. In this way, the cabinet body 11 and the cabinet door body 21 are hingedly connected, so that the cabinet door body 21 can be smoothly opened and closed. Then, the first connecting piece 14 arranged on the four sides inside the cabinet body 11 and the second connecting piece 15 arranged on the left side inside the cabinet body 11 are used to install the charging assembly, such as the smart meter, the surge protector, the contactor, and the wiring lamp assembly, so that the charging assembly can be integrated into the cabinet body 11, the overall size of the direct current charger is reduced, the cost is relatively low, the charging efficiency is relatively improved, the indicator light is arranged on the lower end inside the cabinet body 11 to realize the charging reminding activity, and the charging gun connecting hole 16 arranged on the lower end of the cabinet body 11 is used to quickly connect the external charger with the direct current charger.

[0036] After the installation of the charging assembly is completed, the main board connecting plate 24 arranged inside the cabinet door body 21 is used to connect the control main board. After the connection of the control main board is completed, the control main board is electrically connected with the charging assembly arranged inside the cabinet body 11, so that the small-size direct current charger structure is formed.

[0037] Secondly, the inside one side of the cabinet body 11 can also be through the installation of cooling fan, to realize the auxiliary heat dissipation cooperation, and cooperate with the heat dissipation hole 12 opened in the right side upper end of the cabinet body 11, can accelerate the discharge of heat, at the same time, cooperate with the first guide plate 35 and the second guide plate 36 installed in the air guide assembly 3 from top to bottom in turn, can carry out air transmission cooperation, make the heat along the first guide plate 35 and the second guide plate 36 and carry out quick discharge heat dissipation, make the equipment in the cabinet body 11 inside stable operation state.

[0038] The above only for the preferred examples of the present application, and is not used to limit the present application, although the present application is described in detail with reference to the foregoing examples, for the person skilled in the art, it still can be modified to the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A 7KW DC charger characterized in that: Including cabinet (1), cabinet door (2), air guide assembly (3), emergency stop switch (4) and start key (5), the cabinet (1) front side is hinged with cabinet door (2), the cabinet (1) inside one side upper end is installed with air guide assembly (3), the cabinet (1) right side is installed with emergency stop switch (4) and start key (5), and emergency stop switch (4) and start key (5) are opposite and are arranged.

2. The 7KW direct current charger of claim 1, wherein: The cabinet (1) includes cabinet body (11), air hole (12), hinge shaft (13), first connecting piece (14), second connecting piece (15), charging gun interface (16) and indicator light plate (17), the right side upper end of the cabinet body (11) is provided with air hole (12), the left side front end of the cabinet body (11) is fixedly provided with hinge shaft (13), the inside four sides of the cabinet body (11) are installed with first connecting piece (14), the inside left side of the cabinet body (11) is installed with second connecting piece (15), the inside lower end of the cabinet body (11) is provided with charging gun interface (16), and the lower end of the cabinet body (11) is provided with indicator light plate (17).

3. The 7KW direct current charger of claim 2, wherein: The cabinet door (2) includes cabinet door body (21), hinge connecting piece (22), bottom plate (23), mainboard connecting plate (24) and wire binding plate (25), the inside one side of the cabinet door body (21) is fixedly provided with hinge connecting piece (22), and the hinge connecting piece (22) is opposite to the hinge shaft (13) provided on the left side front end of the cabinet body (11), the lower end of the cabinet door body (21) is fixedly provided with bottom plate (23), the inside of the cabinet door body (21) is installed with mainboard connecting plate (24), and the upper end of the mainboard connecting plate (24) is opposite to wire binding plate (25), and the wire binding plate (25) is welded and fixed to the inside of the cabinet door body (21).

4. The 7KW direct current charger of claim 2, wherein: The air guide assembly (3) includes first mounting plate (31), first side plate (32), second side plate (33), second mounting plate (34), first guide plate (35) and second guide plate (36), the first mounting plate (31) is arranged on the inside right side upper end of the cabinet body (11), the first mounting plate (31) is welded with first side plate (32) and second side plate (33) on both sides respectively, the second mounting plate (34) is welded between the lower ends of the first side plate (32) and the second side plate (33), the first guide plate (35) is arranged between the upper ends of the first side plate (32) and the second side plate (33), and the second guide plate (36) is arranged between the inner lower ends of the first side plate (32) and the second side plate (33).

5. The 7KW direct current charger of claim 2, wherein: The first connecting piece (14) is welded and fixed along the inside four sides of the cabinet body (11), and the middle part of the first connecting piece (14) on the four sides is integrally welded with a press-in nut.

6. The 7KW direct current charger of claim 2, wherein: The second connecting piece (15) is welded and fixed along the inside left side of the cabinet door body (21), and the middle part of the second connecting piece (15) is integrally welded with a press-in nut on both sides.

7. The 7KW direct current charger of claim 2, wherein: The indicator light plate (17) is transversely bolted to the lower end of the front side of the cabinet body (11), and a transverse hollow groove is formed in the middle of the indicator light plate (17).

8. The 7KW direct current charger of claim 4, wherein: The first guide plate (35) and the second guide plate (36) are arranged equidistantly from top to bottom between the first side plate (32) and the second side plate (33), and the first guide plate (35) and the second guide plate (36) are not identical in shape.