Sealing cover for tin sealing of DC converter

Abstract

The utility model discloses a sealing cover for tin sealing of a DC converter, which comprises a cover body, a DC converter body and a cover plate, the top of the cover body is provided with a connecting groove shaped like a Chinese character'hui ', two sides of the cover body are provided with ventilation holes, a double-shaft motor is installed in the ventilation holes, an output shaft at one end of the double-shaft motor is fixedly connected with a plurality of blades, and the blades are fixedly connected with the DC converter body. The cover plate is of an inverted-U-shaped structure, a mounting groove is formed in the vertical end of the cover plate, a split sealing plate is slidably connected to the mounting groove, and the sealing plate is arranged outside the ventilation hole. According to the utility model, the electromagnet has magnetism after being electrified, the blades are driven to rotate through an output shaft at one end of the double-shaft motor, the DC converter body is cooled, an output shaft at the other end of the double-shaft motor drives the movable rod to rotate, the movable rod pushes the elliptical baffle plate to drive the sealing plate to move towards two sides, and the spring is stretched until the sealing plate is connected with the electromagnet; the ventilation holes are opened to facilitate heat dissipation.

Description

Technical Field

[0001] This utility model relates to the field of converter technology, and in particular to a sealing cap for a DC converter. Background Technology

[0002] A DC / DC converter is a voltage converter used to convert an input voltage into a fixed output voltage. It is widely used in various electronic devices. In most DC / DC converter modules on the market today, after the internal components are installed, they usually need to be sealed with an outer cover to protect the internal circuitry from the influence of the external environment.

[0003] Tin sealing is a common sealing method that uses soldering technology to permanently connect the cover to the housing of the DC converter. However, while soldering the cover to the housing provides excellent sealing and mechanical stability, the enclosed structure created by the tin sealing process restricts heat dissipation. DC / DC converters generate heat during operation, especially in high-power applications. Heat accumulation can lead to overheating, which in turn affects the performance and lifespan of the device. Utility Model Content

[0004] The purpose of this utility model is to provide a sealing cap for a DC converter in order to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A sealing cap for a DC converter includes a cover body, a DC converter body, and a cover plate. The top of the cover body has a U-shaped connecting groove with solder pads for connecting the cover body and the cover plate. The top of the cover body has an overflow prevention groove communicating with the inner and outer walls of the connecting groove. Ventilation holes are provided on both sides of the cover body. A dual-axis motor is installed in the ventilation holes. Several blades are fixedly connected to the output shaft of one end of the dual-axis motor. The cover plate has an inverted U-shaped structure. An installation groove is provided on the vertical end of the cover plate. A split sealing plate is slidably connected to the installation groove and is positioned outside the ventilation holes.

[0007] As a further description of the above technical solution:

[0008] The top and bottom of the mounting slot are both fixedly connected with guide rods that pass through the sealing plate, which is made of iron. Electromagnets are fixedly installed on both sides of the mounting slot.

[0009] As a further description of the above technical solution:

[0010] The guide rod is fixedly fitted with a fixed seat that is fixedly connected to the wall of the mounting groove. The two ends of the fixed seat are fixedly connected with springs that are sleeved on the outside of the guide rod. The free end of the spring is fixedly connected to the sealing plate.

[0011] As a further description of the above technical solution:

[0012] A movable rod is fixedly sleeved on the output shaft at the other end of the biaxial motor, and an oval baffle plate in a split type is fixedly connected to the inner side of the sealing plate. Both ends of the movable rod are matched with the long axis ends of the oval baffle plate.

[0013] As a further description of the above technical solution:

[0014] A filter screen sleeved outside the output shaft at the other end of the biaxial motor is fixedly connected to the ventilation hole.

[0015] As a further description of the above technical solution:

[0016] The anti-overflow grooves are distributed in a linear array along the vertical direction.

[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of the present utility model are as follows:

[0018] 1. In the present utility model, before the heat dissipation work, the electromagnet is powered on, and the electromagnet has magnetism. Then, the blade is driven to rotate by the output shaft at one end of the biaxial motor, so as to achieve the purpose of cooling the DC converter body. The output shaft at the other end of the biaxial motor drives the movable rod to rotate, and the movable rod pushes the oval baffle plate to drive the sealing plate to move to both sides, and the spring is stretched until the sealing plate is connected to the electromagnet, and the ventilation hole is opened to facilitate heat dissipation. When the heat dissipation is over, while the biaxial motor stops running, the electromagnet is powered off, the electromagnet loses magnetism, and the spring retracts to drive the sealing plate to close, closing the ventilation hole to achieve the purpose of dust prevention.

[0019] 2. In the present utility model, the solder joint is heated and melted to connect the cover body and the cover plate. During the melting process of the solder joint, the molten solder material fluid penetrates into the anti-overflow groove to prevent the fluid from overflowing. And after the fluid cools and forms, the solder joint for connecting the cover body and the cover plate in the secondary forming is in a structure similar to the character "丰" (abundant), which improves the connection firmness between the cover plate and the cover body. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Fig. shows an exploded view of a sealing cover for tin sealing a DC converter provided by an embodiment of the present utility model;

[0021] Figure 2 Fig. shows a three-dimensional structure diagram of a sealing cover for tin sealing a DC converter provided by an embodiment of the present utility model;

[0022] Figure 3 Fig. shows a structural diagram of the sealing plate provided by an embodiment of the present utility model;

[0023] Figure 4Shows a schematic structural diagram of a cover body provided according to an embodiment of the present invention;

[0024] Figure 5 Shows Figure 4 An enlarged schematic view of part A in

[0025] Legend description:

[0026] 1. Cover body; 101. Connection groove; 102. Ventilation hole; 103. Anti-overflow groove; 2. Cover plate; 201. Installation groove; 3. Electromagnet; 4. Guide rod; 5. Sealing plate; 6. Spring; 7. Filter screen; 8. Movable rod; 9. Welding piece; 10. Fixed seat; 11. Baffle; 12. Biaxial motor; 13. DC converter body. Specific implementation manner

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0028] Please refer to Figure 1-5 , the present invention provides a technical solution: a seal cover for DC converter tin sealing, including a cover body 1, a DC converter body 13 and a cover plate 2. A "hui" - shaped connection groove 101 is opened at the top of the cover body 1. A welding piece 9 for connecting the cover body 1 and the cover plate 2 is provided in the connection groove 101. An anti - overflow groove 103 communicating with the inner and outer groove walls of the connection groove 101 is opened at the top of the cover body 1. The anti - overflow grooves 103 are linearly arranged in an array along the vertical direction. When the welding piece 9 is heated and melted to connect the cover body 1 and the cover plate 2, the molten solder material fluid seeps into the anti - overflow groove 103 to prevent the fluid from overflowing. And after the fluid cools and forms, the welding piece 9 for connecting the cover body 1 and the cover plate 2 after secondary forming has a structure similar to the character "feng", improving the connection firmness between the cover plate 2 and the cover body 1.

[0029] Specifically, as shown in Figure 1 and Figure 4 , ventilation holes 102 are opened on both sides of the cover body 1. A biaxial motor 12 is installed in the ventilation holes 102. A plurality of blades are fixedly connected to one end output shaft of the biaxial motor 12. The cover plate 2 has an inverted "U" - shaped structure. An installation groove 201 is opened on the vertical end of the cover plate 2. A split - type sealing plate 5 is slidably connected to the installation groove 201. The sealing plate 5 is arranged outside the ventilation holes 102. A dust - proof filter screen 7 sleeved on the other end output shaft of the biaxial motor 12 is fixedly connected to the ventilation holes 102. By driving the blades to rotate through the biaxial motor 12, the DC converter body 13 is cooled.

[0030] Specifically, such as Figure 1 , Figure 2 and Figure 3 As shown, guide rods 4 passing through the sealing plate 5 are fixedly connected to the top and bottom of the mounting groove 201. The sealing plate 5 is made of iron. Electromagnets 3 are fixedly installed on both sides of the mounting groove 201. A fixed seat 10 fixedly connected to the groove wall of the mounting groove 201 is fixedly sleeved in the middle of the guide rod 4. Springs 6 sleeved on the outside of the guide rod 4 are fixedly connected to both ends of the fixed seat 10. The free end of the spring 6 is fixedly connected to the sealing plate 5. A movable rod 8 is fixedly sleeved on the output shaft of the other end of the dual-axis motor 12. A split elliptical baffle 11 is fixedly connected to the inside of the sealing plate 5. The two ends of the movable rod 8 are engaged with the long axis end of the elliptical baffle 11. During the heat dissipation process, while the dual-axis motor 12 is working, it energizes the electromagnet 3. The electromagnet 3 is magnetic. The output shaft of the other end of the dual-axis motor 12 drives the movable rod 8 to rotate. The movable rod 8 pushes the elliptical baffle 11, causing the sealing plate 5 to move to both sides. The spring 6 is stretched until the sealing plate 5 is connected to the electromagnet 3, opening the ventilation hole 102 to facilitate heat dissipation. When the heat dissipation ends, the dual-axis motor 12 stops and the electromagnet 3 is de-energized. The electromagnet 3 loses its magnetism, and the spring 6 retracts, causing the sealing plate 5 to close, closing the ventilation hole 102 and achieving the purpose of dust prevention.

[0031] Working principle: During use, before heat dissipation, the electromagnet 3 is energized, and the electromagnet 3 becomes magnetic. This magnetic field drives the blades to rotate through the output shaft of one end of the dual-axis motor 12, which dissipates heat from the DC converter body 13. The output shaft of the other end of the dual-axis motor 12 drives the movable rod 8 to rotate. The movable rod 8 pushes the elliptical baffle 11, which in turn moves the sealing plate 5 to both sides. The spring 6 is stretched until the sealing plate 5 connects with the electromagnet 3, opening the ventilation hole 102 to facilitate heat dissipation. When heat dissipation ends, the dual-axis motor 12 stops, and the electromagnet 3 is de-energized. The electromagnet 3 loses its magnetism, and the spring 6 retracts, causing the sealing plate 5 to close, thus closing the ventilation hole 102 and preventing dust.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A cover for a DC converter tin, comprising a cover body (1), a DC converter body (13) and a cover plate (2), characterized in that, The lid (1) top is provided with a "hui" shaped connecting slot (101), the connecting slot (101) is provided with a welding piece (9) for connecting the lid (1) and the cover plate (2), the lid (1) top is provided with an anti-overflow groove (103) which is communicated with the inner and outer groove walls of the connecting slot (101), the lid (1) two sides are provided with a ventilation hole (102), the ventilation hole (102) is installed with a double-shaft motor (12), the double-shaft motor (12) one end output shaft is fixedly connected with a plurality of blades, the cover plate (2) is a inverted "U" shaped structure, the cover plate (2) vertical end is provided with a mounting slot (201), the mounting slot (201) is slidably connected with a split type sealing plate (5), the sealing plate (5) is arranged outside the ventilation hole (102).

2. A cover for a DC converter potting according to claim 1, characterized in that The mounting slot (201) top and bottom are fixedly connected with a guide rod (4) which passes through the sealing plate (5), the sealing plate (5) is made of iron material, the mounting slot (201) two sides are fixedly installed with an electromagnet (3).

3. A cover for a DC converter potting according to claim 2, characterized in that The guide rod (4) middle part is fixedly sleeved with a fixed seat (10) which is fixedly connected with the mounting slot (201) groove wall, the fixed seat (10) two ends are fixedly connected with a spring (6) which is sleeved outside the guide rod (4), the free end of the spring (6) is fixedly connected with the sealing plate (5).

4. A cover for a DC converter potting according to claim 3, characterized in that The double-shaft motor (12) other end output shaft is fixedly sleeved with a movable rod (8), the sealing plate (5) inner side is fixedly connected with a split type oval baffle (11), the movable rod (8) two ends are matched with the long axis end of the oval baffle (11).

5. A cover for a DC converter potting according to claim 4, characterized in that The ventilation hole (102) is fixedly connected with a filter screen (7) which is sleeved outside the double-shaft motor (12) other end output shaft.

6. A cover for a DC converter potting according to claim 5, characterized in that The anti-overflow groove (103) is linearly arranged along the vertical direction.

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