Efficient bidirectional DCDC converter

Abstract

The utility model relates to the field of bidirectional DCDC converters, and discloses a high-efficiency bidirectional DCDC converter, which comprises a box body. A side supporting plate is fixedly welded to the middle of the inner wall of the box body, a sliding plate capable of being taken out in a sliding mode is arranged on the inner side of the side supporting plate, a connecting frame is connected to the side, away from the side supporting plate, of the sliding plate, a detachable frame is arranged at the upper end of the connecting frame, and a motor and a fan are arranged in the connecting frame and the detachable frame. In the utility model, the fan in the middle of the inner side of the box body blows upwards, so that the airflow has a specific flowing direction, hot air in the box body rises due to lower density and is exhausted from the exhaust meshes at the top of the box body, and cold air in the box body enters from the air inlet meshes at the bottom due to higher density; the air inlet meshes at the bottom of the box body and the air outlet meshes at the top of the box body form a good air convection channel, the space in the box body is limited, and the natural convection design ingeniously utilizes the limited space to achieve efficient heat dissipation and dehumidification functions.

Description

Technical Field

[0001] This utility model relates to the field of bidirectional DC-DC converters, and in particular to a high-efficiency bidirectional DC-DC converter. Background Technology

[0002] A bidirectional DC-DC converter is a power electronic device that enables bidirectional flow of DC power. There are many types of bidirectional DC-DC converters. Small converters are used in automobiles, while large box-type bidirectional DC-DC converters are used in many fields, such as energy conversion, rail transportation, and all-electric drive charging and discharging management systems. Bidirectional DC-DC converters contain inductors, capacitors, and many intricate cables.

[0003] In the prior art, large bidirectional DC-DC converters lack proper air convection design, relying solely on heat dissipation holes or simply using a fan to blow air out of the holes. While components near the heat dissipation holes dissipate heat quickly, the temperature inside the converter is uneven, and components far from the heat dissipation holes tend to accumulate heat. Especially when components are densely packed, local temperatures may rise too quickly, affecting component performance and lifespan. Therefore, this application provides a high-efficiency bidirectional DC-DC converter to meet this requirement. Utility Model Content

[0004] The technical problem this invention aims to solve is to provide a high-efficiency bidirectional DC-DC converter to address the issue that existing large bidirectional DC-DC converters lack proper air convection design and rely solely on heat dissipation holes or simply using a fan to blow air out of the heat dissipation holes. While components near the heat dissipation holes dissipate heat quickly, the temperature inside the converter is uneven, and components far from the heat dissipation holes tend to accumulate heat. Especially when components are densely packed, local temperatures may rise too quickly, affecting component performance and lifespan.

[0005] To solve the problems mentioned above, this utility model is implemented through the following technical solution.

[0006] A high-efficiency bidirectional DC-DC converter includes: a housing; a side support plate welded and fixed to the middle of the inner wall of the housing; a slidable slide plate provided on the inner side of the side support plate; a connecting frame connected to the side of the slide plate away from the side support plate; a detachable frame provided at the upper end of the connecting frame; a motor and a fan are provided inside the connecting frame and the detachable frame; dustproof mesh plates are provided at the bottom of the connecting frame and the top of the detachable frame; an exhaust mesh is provided at the top of the housing; base pads are provided at the four corners of the bottom of the housing; an air inlet mesh is provided at the bottom of the housing, and the air inlet mesh is located between the four base pads.

[0007] In one embodiment, the exhaust mesh at the top of the housing corresponds to the air intake mesh at the bottom of the housing.

[0008] In one embodiment, the contact surface between the side support plate and the sliding plate is provided with a groove, and the sliding plate forms a sliding structure with the side support plate through the groove.

[0009] In one embodiment, the dustproof mesh panels at the bottom of the connecting frame and the top of the detachable frame are positioned opposite each other.

[0010] In one embodiment, a motor is welded to the lower middle part of the dustproof mesh plate at the top of the detachable frame, and a fan is connected to the side of the motor away from the dustproof mesh plate via a shaft.

[0011] In one embodiment, connecting posts are provided at the four inner corners of the connecting frame.

[0012] In one embodiment, screws are provided through the four corners of the detachable frame, the bottom of the screws are screwed into the connecting post, and the contact surface between the connecting post and the screws is provided with corresponding threaded holes.

[0013] In one embodiment, the dustproof mesh is detachable from the connecting frame by screws and connecting posts.

[0014] This invention provides a high-efficiency bidirectional DC-DC converter. Compared with the prior art, it has the following advantages:

[0015] In the above design, the fan in the middle of the inner side of the enclosure blows upwards, creating a specific airflow direction. Inside the enclosure, hot air, being less dense, rises and exits through the exhaust vents at the top, while cold air, being denser, enters through the bottom intake vents. The bottom intake vents and the top exhaust vents form an effective air convection channel. Despite the limited space inside the enclosure, this natural convection design cleverly utilizes the limited space to achieve efficient heat dissipation and dehumidification. The directional airflow design provides more comprehensive coverage of all areas inside the enclosure, ensuring relatively uniform temperature. Dust filters are located above and below the fan. Holding the sliding plate on one side and pulling it out along the groove inside the side support plate provides greater operational space for cleaning the dust filters. This makes cleaning more convenient, effectively removing long-term accumulated dust and dirt, maintaining good fan ventilation performance, and thus ensuring the overall heat dissipation effect of the converter. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the converter.

[0017] Figure 2 This is a schematic diagram of the connection structure between the side support plate and the connecting frame.

[0018] Figure 3 This is an exploded bottom view of the dustproof mesh and connecting frame.

[0019] Figure 4 This is an exploded top view of the dustproof mesh and connecting frame.

[0020] The attached figures are labeled as follows:

[0021] 1. Housing; 2. Exhaust mesh; 3. Intake mesh; 4. Bottom pad; 5. Side support plate; 6. Slide plate; 7. Slide groove; 8. Connecting frame; 9. Connecting column; 10. Detachable frame; 11. Dustproof mesh plate; 12. Motor; 13. Fan; 14. Screws. Detailed Implementation

[0022] The present invention will be further described below with reference to specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of protection of the present invention.

[0023] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model.

[0024] Reference Figures 1-4 A high-efficiency bidirectional DC-DC converter includes: a housing 1; a side support plate 5 is welded and fixed to the middle of the inner wall of the housing 1, a slide plate 6 is provided on the inner side of the side support plate 5, a connecting frame 8 is connected to the side of the slide plate 6 away from the side support plate 5, a detachable frame 10 is provided at the upper end of the connecting frame 8, a motor 12 and a fan 13 are provided inside the connecting frame 8 and the detachable frame 10, and dustproof mesh plates 11 are provided at the bottom of the connecting frame 8 and the top of the detachable frame 10; an exhaust mesh hole 2 is provided at the top of the housing 1, bottom pads 4 are provided at the four corners of the bottom of the housing 1, and an air inlet mesh hole 3 is provided at the bottom of the housing 1, with the air inlet mesh hole 3 located between the four bottom pads 4.

[0025] The fan 13 blows upwards, giving the airflow a specific direction. Inside the cabinet 1, hot air, being less dense, rises and is exhausted from the exhaust mesh 2 at the top of the cabinet 1, while cold air, being denser, enters from the air intake mesh 3 at the bottom. The air intake mesh 3 at the bottom of the cabinet 1 and the exhaust mesh 2 at the top form a good air convection channel. The space inside the cabinet 1 is limited, and this natural convection design cleverly utilizes the limited space to achieve efficient heat dissipation and dehumidification.

[0026] The contact surface between the side support plate 5 and the slide plate 6 is provided with a groove 7, and the slide plate 6 and the side support plate 5 form a sliding structure through the groove 7.

[0027] When cleaning the dust screen 11 is required, simply hold one side of the sliding plate 6 and pull the sliding plate 6 out from the side support plate 5 along the groove 7 to clean the dust screen 11. This operation method provides more operating space and facilitates the cleaning work.

[0028] The dustproof mesh 11 at the bottom of the connecting frame 8 and the top of the detachable frame 10 are positioned correspondingly.

[0029] A motor 12 is welded to the lower middle part of the dustproof mesh plate 11 at the top of the detachable frame 10. A fan 13 is connected to the side of the motor 12 away from the dustproof mesh plate 11 via a shaft.

[0030] Connecting posts 9 are provided at the four corners of the inner side of the connecting frame 8.

[0031] The detachable frame 10 has screws 14 running through its four corners. The bottom of the screws 14 is screwed into the connecting post 9. The contact surface between the connecting post 9 and the screws 14 has corresponding threaded holes.

[0032] The dustproof mesh 11 is connected to the connecting frame 8 via screws 14 and connecting posts 9 to form a detachable structure.

[0033] When the motor 12 or fan 13 needs maintenance, the screw 14 can be rotated upward from inside the detachable frame 10 and connecting post 9 and removed. This operation can separate the detachable frame 10 from the connecting frame 8, making it easier to carry out maintenance work on the motor 12 and fan 13.

[0034] During operation, motor 12 is started, and fan 13 rotates, blowing upwards. The air inlet mesh 3 at the bottom and the exhaust mesh 2 at the top of the housing 1 form a good air convection channel. Hot air, due to its lower density, rises and is discharged from the exhaust mesh 2 at the top of the housing 1, while cold air, with its higher density, enters from the air inlet mesh 3 at the bottom, forming a natural convection circulation. This convection method can continuously remove the heat generated inside the converter, effectively reducing the equipment temperature and humidity, and also improving the internal space of the housing 1. Limited space, with inductors, capacitors and other components and a complex network of cables, makes it easy for dirt to accumulate on the dustproof mesh plates 11 at the top and bottom of the fan 13 after long-term use. The dustproof mesh plates 11 can be cleaned by holding one side of the sliding plate 6 and pulling it out from the side support plate 5 along the sliding groove 7. This provides more operating space and makes cleaning easier. The screws 14 can be removed by rotating them upwards from the detachable frame 10 and the connecting column 9, which separates the detachable frame 10 from the connecting frame 8, allowing for maintenance of the motor 12 and the fan 13.

[0035] Therefore, although the present invention has been described herein with reference to specific embodiments thereof, freedom of modification, various changes and substitutions are also within the scope of the above disclosure, and it should be understood that in some cases, certain features of the present invention may be adopted without departing from the scope and spirit of the invention and without corresponding use of other features. Thus, many modifications can be made to adapt a particular environment or material to the essential scope and spirit of the present invention. The present invention is not intended to be limited to the specific terms used in the following claims and / or the specific embodiments disclosed as the best mode of carrying out the present invention, but the present invention will include any and all embodiments and equivalents falling within the scope of the appended claims. Therefore, the scope of the present invention will be determined only by the appended claims.

Claims

1. A high-efficiency bidirectional DC-DC converter, characterized in that, include: Box (1); A side support plate (5) is welded and fixed in the middle of the inner wall of the box (1). A slide plate (6) that can be slidably removed is provided on the inner side of the side support plate (5). A connecting frame (8) is connected to the side of the slide plate (6) away from the side support plate (5). A detachable frame (10) is provided at the upper end of the connecting frame (8). A motor (12) and a fan (13) are provided inside the connecting frame (8) and the detachable frame (10). Dustproof mesh plates (11) are provided at the bottom of the connecting frame (8) and the top of the detachable frame (10). The top of the box (1) is provided with an exhaust mesh (2), the bottom of the box (1) is provided with four bottom pads (4), the bottom of the box (1) is provided with an air inlet mesh (3), and the air inlet mesh (3) is located between the four bottom pads (4).

2. The high-efficiency bidirectional DC-DC converter according to claim 1, characterized in that, The exhaust mesh (2) at the top of the box (1) corresponds to the air inlet mesh (3) at the bottom of the box (1).

3. The high-efficiency bidirectional DC-DC converter according to claim 1, characterized in that, The contact surface between the side support plate (5) and the slide plate (6) is provided with a groove (7), and the slide plate (6) and the side support plate (5) form a sliding structure through the groove (7).

4. The high-efficiency bidirectional DC-DC converter according to claim 1, characterized in that, The dustproof mesh (11) at the bottom of the connecting frame (8) and the top of the detachable frame (10) are positioned correspondingly.

5. A high-efficiency bidirectional DC-DC converter according to claim 1, characterized in that, A motor (12) is welded to the lower middle part of the dustproof mesh plate (11) at the top of the detachable frame (10), and a fan (13) is connected to the side of the motor (12) away from the dustproof mesh plate (11) via a shaft.

6. A high-efficiency bidirectional DC-DC converter according to claim 4, characterized in that, The connecting frame (8) has connecting columns (9) at its four inner corners.

7. A high-efficiency bidirectional DC-DC converter according to claim 5, characterized in that, The detachable frame (10) has screws (14) through its four corners. The bottom of the screws (14) is screwed into the connecting post (9). The contact surface between the connecting post (9) and the screws (14) has corresponding threaded holes.

8. A high-efficiency bidirectional DC-DC converter according to claim 7, characterized in that, The dustproof mesh (11) is connected to the connecting frame (8) by screws (14) and connecting posts (9) to form a detachable structure.

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