High-efficiency DC-DC power converter

Abstract

The utility model relates to a high-efficiency DC-DC power converter, and aims to solve the problems of low heat absorption efficiency, poor heat dissipation efficiency, low power consumption and the like due to the fact that a heat dissipation channel is formed by additionally arranging a fan in a current power converter and the flow rate of air in the heat dissipation channel of the power converter is too high. The power converter comprises a power converter body, a plurality of heat dissipation fin plates A are arranged on the two sides of the power converter body at equal intervals, and a plurality of heat dissipation fin plates B are arranged in the middle of the top of the power converter body at equal intervals. According to the utility model, the air flow is guided, the contact area with high-speed air is increased, the heat absorption effect of the high-speed flowing air is improved, the heat absorption efficiency is ensured, the heat utilization rate is improved, and the service life of the power supply converter is prolonged. And the problem that the working efficiency of equipment is reduced due to too high internal temperature rise is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of power converters, in particular to a high-efficiency DC-DC power converter. Background Art

[0002] A power converter is a device used to convert electricity from one form to another. It can convert AC power into DC power, and can also adjust the voltage, frequency or waveform. This conversion and adjustment is achieved through principles such as energy conversion, switching technology and control regulation. Power converters are widely used in various fields, especially in the field of communications. For example, devices such as switches and routers require stable DC power as a power supply, and power converters can meet the needs of these devices. In addition, power converters are also widely used in various electronic devices and power systems to meet the power requirements of different devices and systems.

[0003] At present, the main heat dissipation methods for power converters include natural convection, forced air cooling and liquid cooling. Due to the limitations of installation space and processing costs, forced air cooling is usually used more often. The heat dissipation method of forced air cooling mainly forms a heat dissipation channel by adding a fan, and promotes the convection of hot and cold air through the heat dissipation channel. The air flow rate in the heat dissipation channel of the power converter is too high, which makes its heat absorption efficiency low and the heat dissipation efficiency poor, which can easily cause the internal temperature of the device to rise too high and affect the working efficiency. In view of this, we propose a high-efficiency DC-DC power converter. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art, meet the actual needs, and provide a high-efficiency DC-DC power converter to solve the technical problem that the current power converter forms a heat dissipation channel by adding a fan, and the air flow rate in the heat dissipation channel of the power converter is too high, resulting in low heat absorption efficiency and poor heat dissipation efficiency, which easily leads to excessive temperature rise inside the device and affects the working efficiency.

[0005] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is: designing a high-efficiency DC-DC power converter, including a power converter body;

[0006] Multiple heat dissipation fins A are equidistantly arranged on both sides of the power converter body, and multiple heat dissipation fins B are equidistantly arranged on the top of the power converter body, an exhaust mechanism for accelerating air flow is centrally arranged at one end of the power converter body, and through grooves are centrally arranged on both sides of the multiple heat dissipation fins A, and mounting grooves are centrally arranged on the tops of the multiple heat dissipation fins A and the multiple heat dissipation fins B, multiple through grooves and multiple mounting grooves on the same side are jointly provided with heat exchange mechanisms, and the multiple heat exchange mechanisms are connected to the exhaust mechanism;

[0007] The heat exchange mechanism includes a heat absorption tube and an air intake scoop arranged at one end of the heat absorption tube away from the exhaust mechanism. A wavy heat sink is constructed between the top and the bottom of the heat absorption tube, and the wavy heat sink realizes the undulating flow of air in the heat absorption tube.

[0008] Preferably, the exhaust mechanism comprises a shell, an annular inner plate is fixedly arranged in the shell, and a plurality of air inlet grooves are formed in an annular array on the inner edge surface of the annular inner plate.

[0009] Preferably, a bracket is fixedly provided on one side of the annular inner plate close to the power converter body, and a servo motor is centrally provided on the side of the bracket away from the power converter body, and a fan blade is fixedly installed on one end of the motor shaft of the servo motor.

[0010] Preferably, the fan blades are arranged in the annular inner plate, and multiple ends of the fan blades are formed with arc-shaped blade edges that match the air inlet grooves to achieve a rapid ejection action after the air flows out.

[0011] Preferably, both sides of the outer edge surface of the shell are connected to the air intake pipe A, and the top of the outer edge surface of the shell is connected to the air intake pipe B, and the air intake pipe A and the air intake pipe B are both connected to the corresponding heat absorption pipe.

[0012] Preferably, a plurality of extension ears are configured in a ring array on the outer edge surface of the shell, and fixing bolts threadedly connected to the main body of the power converter are movably provided in the plurality of extension ears.

[0013] Preferably, partitions are constructed on the top and bottom of both sides of the corrugated heat sink, and a plurality of flow channels are formed in the heat absorption tube in coordination with the corrugated heat sink and the plurality of partitions.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The utility model absorbs heat by means of a plurality of heat dissipation fins A and a plurality of heat dissipation fins B arranged on the main body of the power converter. The absorbed heat is absorbed by the wavy heat sink arranged in the heat absorption tube, and the wavy heat sink is cooled by the air flowing undulatingly under the influence of the wavy heat sink. By reducing the contact area between the heat absorption tube and the air, the heat absorption effect of the high-speed flowing air is improved, thereby ensuring the heat absorption efficiency and high heat dissipation efficiency, thereby avoiding the problem of reduced equipment working efficiency due to excessive internal temperature rise.

[0016] 2. The utility model realizes the rapid discharge of air in multiple heat exchange mechanisms through the exhaust mechanism. When the air is discharged, the fan blades are driven to rotate by the servo motor, thereby forming a negative pressure in the annular inner plate, and the hot air is sucked in through the two air inlet pipes A and B, and then sucked into the annular inner plate through the air inlet groove, and then the hot air is quickly pushed out by the fan blades with multiple arc-shaped blade edges, thereby avoiding the problem of heat accumulation and further improving the heat dissipation efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model in a left-side view;

[0018] Figure 2 It is a schematic diagram of the structure of the utility model in a right-side view;

[0019] Figure 3 It is a schematic diagram of the structure of the exhaust mechanism and the heat exchange mechanism in the utility model in a separated state;

[0020] Figure 4 It is a schematic diagram of the structure of the exhaust mechanism in the utility model in a disassembled state;

[0021] Figure 5 It is a cross-sectional view of the heat exchange mechanism in the utility model.

[0022] In the figure: 1. power converter body; 2. heat sink A; 3. heat sink B; 4. exhaust mechanism; 401. shell; 402. annular inner plate; 403. air inlet groove; 404. bracket; 405. servo motor; 406. fan blade; 407. arc blade edge; 408. air inlet pipe A; 409. air inlet pipe B; 410. extension ear; 5. heat exchange mechanism; 501. heat absorption pipe; 502. air inlet scoop; 503. wavy heat sink; 504. partition. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0024] Embodiment 1: A high-efficiency DC-DC power converter, see Figure 1 , comprising a power converter body 1;

[0025] Further, in order to ensure the working efficiency of the power converter body 1, see Figure 1 , Figure 2 , multiple heat dissipation fins A2 are equidistantly constructed on both sides of the power converter body 1, and multiple heat dissipation fins B3 are equidistantly constructed on the top of the power converter body 1, an exhaust mechanism 4 for accelerating air flow is centrally provided at one end of the power converter body 1, and through grooves are centrally provided on both sides of the multiple heat dissipation fins A2, and mounting grooves are centrally provided on the tops of the multiple heat dissipation fins A2 and the multiple heat dissipation fins B3, and heat exchange mechanisms 5 are commonly provided in the multiple through grooves and the multiple mounting grooves on the same side, and the multiple heat exchange mechanisms 5 are connected to the exhaust mechanism 4, and the heat is absorbed by the multiple heat dissipation fins A2 and the multiple heat dissipation fins B3 arranged on the power converter body 1, so as to dissipate heat in the air and ensure the working efficiency of the power converter body 1,

[0026] Furthermore, to avoid the problem of equipment efficiency reduction due to excessive internal temperature rise, see Figure 2 , Figure 3 , Figure 5 The heat exchange mechanism 5 includes a heat absorption tube 501 and an air intake scoop 502 arranged at one end of the heat absorption tube 501 away from the exhaust mechanism 4. A wavy heat sink 503 is constructed between the top and the bottom of the heat absorption tube 501. The wavy heat sink 503 realizes the undulating flow of air in the heat absorption tube 501. The top and bottom of both sides of the wavy heat sink 503 are both constructed with partitions 504. The heat absorption tube 501 is combined with the wavy heat sink 503 and the multiple partitions 504 to form multiple flow channels, multiple The heat absorbed by the heat sink A2 and the multiple heat sinks B3 is absorbed by the wavy heat sink 503 set in the heat absorption tube 501, and the wavy heat sink 503 is cooled by the air that flows undulatingly under the influence of the wavy heat sink 503. By reducing the contact area between the heat absorption tube 501 and the air, the heat absorption effect of the high-speed flowing air is improved, thereby ensuring the heat absorption efficiency and high heat dissipation efficiency, avoiding the problem of reduced equipment working efficiency due to excessive internal temperature rise.

[0027] Furthermore, to avoid the problem of heat accumulation and to further improve the heat dissipation efficiency of the device, see Figure 2 , Figure 3 , Figure 4 , Figure 5The exhaust mechanism 4 includes a shell 401, an annular inner plate 402 is fixedly arranged in the shell 401, and the inner edge surface of the annular inner plate 402 is provided with a plurality of air inlet grooves 403 in an annular array, a bracket 404 is fixedly arranged on the side of the annular inner plate 402 close to the power converter body 1, and a servo motor 405 is centrally arranged on the side of the bracket 404 away from the power converter body 1, and a fan blade 406 is fixedly installed at one end of the motor shaft of the servo motor 405, the fan blade 406 is arranged in the annular inner plate 402, and multiple ends of the fan blade 406 are formed with an arc blade edge 407 matching the air inlet groove 403 to achieve a rapid ejection action after the air flows out, both sides of the outer edge surface of the shell 401 are connected to the air inlet pipe A408, and the top of the outer edge surface of the shell 401 is connected to the air inlet pipe B409, the air inlet pipe A408 and the air inlet pipe B409 are both connected to the corresponding heat absorption pipe 501, and a plurality of extension ears 410 are constructed in a ring array on the outer edge surface of the shell 401, and the plurality of extension ears 410 are movably provided with fixing bolts threadedly connected to the power converter body 1, and the air in the plurality of heat exchange mechanisms 5 is quickly discharged through the exhaust mechanism 4. When the air is discharged, the fan blades 406 are driven to rotate by the servo motor 405, thereby forming a negative pressure in the annular inner plate 402, and the hot air is sucked in through the two air inlet pipes A408 and the air inlet pipe B409, and is sucked into the annular inner plate 402 through the air inlet groove 403, and then the hot air is quickly pushed out by the fan blades 406 with a plurality of arc-shaped blade edges 407, thereby avoiding the problem of heat accumulation and further improving the heat dissipation efficiency of the device.

[0028] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A high-efficiency DC-DC power converter, characterized in that: It comprises a power converter body (1); A plurality of heat dissipation fins A (2) are equidistantly arranged on both sides of the power converter body (1), and a plurality of heat dissipation fins B (3) are equidistantly arranged on the top of the power converter body (1), an exhaust mechanism (4) for accelerating air flow is arranged in the center of one end of the power converter body (1), and a through groove is arranged in the center of both sides of the plurality of heat dissipation fins A (2), and a mounting groove is arranged in the center of the tops of the plurality of heat dissipation fins A (2) and the plurality of heat dissipation fins B (3), and a heat exchange mechanism (5) is arranged in the plurality of through grooves and the plurality of mounting grooves on the same side, and the plurality of heat exchange mechanisms (5) are connected to the exhaust mechanism (4); The heat exchange mechanism (5) comprises a heat absorption pipe (501) and an air intake scoop (502) arranged at one end of the heat absorption pipe (501) away from the exhaust mechanism (4); a wavy heat sink (503) is constructed between the top and the bottom of the heat absorption pipe (501); and the wavy heat sink (503) is used to realize an undulating flow of air in the heat absorption pipe (501).

2. The high-efficiency DC-DC power converter according to claim 1, characterized in that: The exhaust mechanism (4) comprises a shell (401), an annular inner plate (402) is fixedly arranged inside the shell (401), and a plurality of air inlet grooves (403) are formed in an annular array on the inner edge surface of the annular inner plate (402).

3. The high-efficiency DC-DC power converter according to claim 2, characterized in that: A bracket (404) is fixedly arranged on a side of the annular inner plate (402) close to the power converter body (1), and a servo motor (405) is centrally arranged on a side of the bracket (404) away from the power converter body (1), and a fan blade (406) is fixedly mounted on one end of the motor shaft of the servo motor (405).

4. The high-efficiency DC-DC power converter according to claim 3, characterized in that: The fan blades (406) are arranged in the annular inner plate (402), and multiple ends of the fan blades (406) are formed with arc-shaped blade edges (407) that match the air inlet grooves (403) to achieve a rapid ejection action after the air flows out.

5. The high-efficiency DC-DC power converter according to claim 4, characterized in that: Both sides of the outer edge surface of the shell (401) are connected to the air intake pipe A (408), and the top of the outer edge surface of the shell (401) is connected to the air intake pipe B (409), and the air intake pipe A (408) and the air intake pipe B (409) are both connected to the corresponding heat absorption pipe (501).

6. The high-efficiency DC-DC power converter according to claim 5, characterized in that: A plurality of extension ears (410) are arranged in a ring array on the outer edge surface of the housing (401), and fixing bolts threadedly connected to the power converter body (1) are movably arranged in the plurality of extension ears (410).

7. The high-efficiency DC-DC power converter according to claim 1, characterized in that: The top and bottom of both sides of the wavy heat sink (503) are both constructed with partitions (504), and a plurality of flow channels are formed in the heat absorption tube (501) in coordination with the wavy heat sink (503) and the plurality of partitions (504).

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