Waterproof heat dissipation structure for power adapter

Abstract

The utility model discloses a waterproof heat dissipation structure for a power adapter, which relates to the technical field of power adapters and comprises a shell, a power circuit board arranged in the shell, a power line and a power plug, the power line and the power plug are fixedly connected onto the shell, a pair of heat dissipation conduits are fixedly connected in the shell, and the ends of the pair of heat dissipation conduits penetrate through the shell. A dustproof cylinder is arranged at the end of each heat dissipation guide pipe, a gap is formed between the opposite ends of the pair of heat dissipation guide pipes, a miniature heat dissipation fan is arranged at the gap and fixedly connected to the inner wall of the shell, a driving mechanism is arranged on the shell, a blocking piece is arranged on the driving mechanism, and the blocking piece is fixedly connected to the inner wall of the shell. The plugging member is used for plugging opposite ports of the pair of heat dissipation conduits. According to the utility model, the problem that the current power adapter is difficult to be compatible with water resistance and heat dissipation due to the fact that the power adapter generates large heat when working for a long time is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of power adapters, in particular to a waterproof heat dissipation structure for a power adapter. Background Art

[0002] A power adapter typically consists of a housing, transformer, inductor, capacitor, control IC, PCB, and other components. It works by converting AC input to DC output. It converts AC power from an outlet or other power source into the DC power required by a device, providing power to the device, not necessarily charging it. Its output voltage is usually the DC voltage required by the device. Power adapters are widely used in devices such as telephone handsets, game consoles, voice recorders, walkmans, laptops, and cell phones.

[0003] As described in the patent publication number CN201490297U, "A Waterproof Heat Dissipation Structure for Chargers," existing chargers are generally not waterproof. This disadvantage prevents the heat generated by the charger from being effectively dissipated. Current chargers cannot address both the waterproofing and heat dissipation issues.

[0004] As described in the patent publication number CN117082795B, a high-heat dissipation waterproof power adapter, in the existing technology, the power adapter generates heat during operation. The accumulation of heat in the power adapter can easily cause internal faults such as short circuits. At the same time, if the power adapter comes into contact with liquids such as water during use, it is also prone to malfunction, which can easily cause danger and harm to the user.

[0005] In summary, in the prior art, current power adapters face the problem of incompatibility between waterproofing and heat dissipation. Utility Model Content

[0006] In order to overcome the above-mentioned shortcomings, the present invention aims to provide a technical solution for a waterproof heat dissipation structure for a power adapter that can solve the above-mentioned problems.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] A waterproof heat dissipation structure for a power adapter comprises a shell, a power circuit board arranged in the shell, and a power cord and a power plug fixedly connected to the shell. A pair of heat dissipation pipes are fixedly connected in the shell, and the ends of the pair of heat dissipation pipes both pass through the shell. Gaps are provided at the opposite ends of the pair of heat dissipation pipes, and miniature heat dissipation fans are provided in the gaps. The miniature heat dissipation fans are fixedly connected to the inner wall of the shell. A driving mechanism is provided on the shell, and a blocking member is provided on the driving mechanism. The blocking member is used to block the opposite ports of the pair of heat dissipation pipes.

[0009] As a further solution of the present invention: the heat dissipation pipe is arranged in a serpentine structure.

[0010] As a further solution of the present invention: a dustproof tube is provided at the end of each heat dissipation pipe, a rubber sleeve is provided on the dustproof tube, and the dustproof tube is tightly inserted into the port of the heat dissipation pipe through the rubber sleeve.

[0011] As a further solution of the present invention: the opposite ends of a pair of heat dissipation pipes are fixedly connected with expansion covers.

[0012] As a further solution of the present utility model: the driving mechanism includes a precision screw, which is rotatably connected in the shell, and a threaded block is rotatably connected to the precision screw, one end of the precision screw is fixedly connected to the rotating block, and a polished rod is slidably connected to the threaded block, the rotating block is arranged on the outside of the shell, and the polished rod is fixedly connected in the shell.

[0013] A pair of limiting rings are fixedly connected to the polished rod, and the threaded block is in movably contact with the limiting rings.

[0014] As a further solution of the present invention: the sealing member includes a bracket, the bracket is fixedly connected to the threaded block, and a pair of blocking plates are fixedly connected to both ends of the bracket. The blocking plates are arranged flush with the ports of the expansion mask, and the blocking plates are slidably connected to the port position of the expansion mask.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. The present invention provides a waterproof heat dissipation structure for a power adapter. A pair of heat dissipation pipes are provided in the housing as heat dissipation channels for the heat inside the housing. A micro-cooling fan provided between the pair of heat dissipation pipes accelerates air circulation by blowing air. In this way, the power circuit board in the housing can achieve air-cooled heat dissipation. In addition, because the heat dissipation pipes are provided in a serpentine structure, the water resistance can be increased. Therefore, the power adapter of the present application not only meets the heat dissipation requirements, but also has a certain degree of waterproofness.

[0017] 2. The utility model is a waterproof heat dissipation structure for a power adapter. Through the sealing pieces on one side of the opposite ends of a pair of heat dissipation pipes, the driving mechanism provides linear movement power for the sealing pieces. In this way, the sealing pieces can flexibly block the ends of the heat dissipation pipes located in the shell. In this way, when water accumulates in the heat dissipation pipes, the problem of water entering the shell due to clearing the accumulated water can be effectively avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural stereogram of a waterproof heat dissipation structure for a power adapter of the utility model;

[0019] Figure 2 This utility model Figure 1 Split diagram of ;

[0020] Figure 3 This utility model Figure 2 Side view of;

[0021] Figure 4 This is a structural stereogram of the heat dissipation duct of the present invention;

[0022] Figure 5 This is a structural stereogram of the drive mechanism and the blocking member of the utility model;

[0023] Figure 6 yes Figure 3 Partial view at point A in the middle;

[0024] The reference numerals and names in the figures are as follows:

[0025] 1. Housing; 2. Power circuit board; 3. Power cord; 4. Power plug; 5. Heat dissipation duct; 6. Dustproof cylinder; 7. Micro cooling fan; 8. Driving mechanism; 81. Precision screw; 82. Threaded block; 83. Rotating block; 84. Polished rod; 9. Sealing piece; 91. Bracket; 92. Blocking plate; 10. Expansion cover; 11. Rubber sleeve; 12. Limiting ring. DETAILED DESCRIPTION

[0026] 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 are within the scope of protection of the present invention.

[0027] See also Figure 1-6A waterproof heat dissipation structure for a power adapter includes a shell 1, a power circuit board 2 arranged in the shell 1, and a power cord 3 and a power plug 4 fixedly connected to the shell 1. The power circuit board 2 in this application can be integrated with existing electronic components such as transformers, inductors, capacitors, and control ICs. The power cord 3 and the power plug 4 are both electrically connected to the power circuit board 2. A pair of heat dissipation pipes 5 are fixedly connected to the shell 1. The heat dissipation pipes 5 in this application can adopt a copper tube structure. Copper has good thermal conductivity. The ends of the pair of heat dissipation pipes 5 pass through the shell 1. When the power adapter is operating, heat is generated inside. One end of the heat dissipation pipe 5 is externally placed outside the shell 1, which facilitates air circulation and allows the heat inside the shell 1 to be easily discharged. When the power adapter is not operating, the heat dissipation pipe 5 is blocked by a blocking member 9 to prevent water from accidentally entering the power adapter.

[0028] A dustproof tube 6 is provided at the end of each heat dissipation pipe 5 , and the dustproof tube 6 can increase the dustproofness of the interior of the heat dissipation pipe 5 , thereby preventing the heat dissipation pipe 5 from being blocked by dust.

[0029] A gap is provided at the opposite ends of a pair of heat dissipation pipes 5, and a micro-heat dissipation fan 7 is provided at the gap. One of the heat dissipation pipes 5 draws in external air under the action of the micro-heat dissipation fan 7, and the other of the heat dissipation pipes 5 discharges the heat of the shell under the action of the micro-heat dissipation fan 7, thereby accelerating the heat dissipation efficiency. In this application, the micro-heat dissipation fan 7 can be electrically connected to the power supply circuit board 2, and the power supply circuit board 2 should be provided with a single-chip microcomputer dedicated to the micro-heat dissipation fan 7. After ensuring the stability of the control circuit of the micro-heat dissipation fan 7, the micro-heat dissipation fan 7 can be directly started to dissipate heat after the power plug 4 is inserted into the socket. The micro-heat dissipation fan 7 is fixedly connected to the inner wall of the shell 1, and a driving mechanism 8 is provided on the shell 1. A sealing member 9 is provided on the driving mechanism 8. The sealing member 9 is used to seal the relative ports of the pair of heat dissipation pipes 5.

[0030] It is worth noting that in order to reduce the working energy consumption of the micro cooling fan 7, a thermostat of the existing technology can be set on the power circuit board 2 to cooperate with the single chip microcomputer to be electrically connected to the micro cooling fan 7, and the thermostat can control the heat dissipation work of the micro cooling fan 7.

[0031] The heat dissipation pipe 5 is arranged in a serpentine structure. The advantage of this design is that by increasing the number of bends of the heat dissipation pipe 5 structure, the laying area of the heat dissipation pipe 5 in the shell 1 can be made larger, and some high-heat-generating components can directly abut against the heat dissipation pipe 5, thereby better diffusing and discharging heat.

[0032] A rubber sleeve 11 is provided on the dustproof tube 6, and the dustproof tube 6 is tightly inserted into the port of the heat dissipation duct 5 through the rubber sleeve 11. The setting of the rubber sleeve 11 can provide the dustproof tube 6 with an elastic plug-in installation effect, so that the dustproof tube 6 can be detachable to meet the needs of dust cleaning.

[0033] The opposite ends of the pair of heat dissipation pipes 5 are fixedly connected to the expansion cover 10, which can increase the flow rate of inlet and outlet ventilation. In this application, the pair of heat dissipation pipes 5 are used as an air inlet pipe and an air outlet pipe respectively.

[0034] The driving mechanism 8 includes a precision screw 81, which is rotatably connected to the shell 1. A threaded block 82 is rotatably connected to the precision screw 81. One end of the precision screw 81 is fixedly connected to a rotating block 83. A light rod 84 is slidably connected to the threaded block 82. The rotating block 83 is arranged on the outside of the shell 1, and the light rod 84 is fixedly connected to the shell 1. In this application, the precision screw 81 can be rotatably connected to the shell 1 through a sealed bearing. In this application, a avoidance opening for avoiding the installation position of the driving mechanism 8 is provided on the power supply circuit board 2.

[0035] A pair of limit rings 12 are fixedly connected to the polished rod 84, and the threaded block 82 is in movable contact with the limit rings 12. When the threaded block 82 moves linearly based on the upper precision screw rod 81, the pair of limit rings 12 can limit the movement path of the threaded block 82 at two places, so that the sealing member 9 can be manually controlled to accurately approach or move away from the end position of the heat dissipation pipe 5.

[0036] The sealing member 9 includes a bracket 91, which is fixedly connected to the threaded block 82. A pair of blocking plates 92 are fixedly connected to both ends of the bracket 91. The blocking plates 92 are arranged flush with the port of the expansion cover 10. The blocking plates 92 are slidably connected to the port position of the expansion cover 10. When a small amount of water enters the power adapter and the accumulated water in the heat dissipation duct 5 needs to be cleaned, the end of the heat dissipation duct 5 located in the shell 1 is first blocked with the blocking plate 92. In this way, the heat dissipation duct 5 with one end blocked can be drained from the other end by dumping.

[0037] When the present invention is in use, the power plug 4 is inserted into the socket to power on. While the power cord 3 outputs DC power, the micro cooling fan 7 can dissipate heat. The copper heat dissipation pipe 5 provides a heat dissipation channel for the power circuit board 2 inside the housing 1. In this way, the micro cooling fan 7 can accelerate the circulation of air in the housing 1, thereby reducing the operating temperature of the power circuit board 2. Due to the serpentine structure of the heat dissipation pipe 5, while increasing the heat dissipation effect, it can also partially increase the water resistance of the housing 1 to water ingress. When the heat dissipation pipe 5 meets the ventilation and heat dissipation requirements of the housing 1, a certain waterproof effect can be achieved (for example, when it rains or there is water splashing outside).

[0038] The precision screw 81 can be rotated by rotating the rotating block 83. With the smooth rod 84 providing a guide for the threaded block 82, the threaded block 82 can drive a pair of blocking plates 92 on the bracket 91 to move in the gap between the pair of heat dissipation pipes 5. By blocking the blocking plates 92 at the ports of the expansion cover 10, the end of the heat dissipation pipe 5 close to the shell 1 can be blocked. When water enters the heat dissipation pipe 5 and needs to be cleared, the heat dissipation pipe 5 can drain the accumulated water by dumping. This method of clearing accumulated water can effectively avoid the problem of water accumulation in the shell 1 and is more practical.

[0039] The best usage state of the power adapter of the present invention is to be placed horizontally (the heat dissipation pipes 5 are in a horizontal state). In the horizontal state, the water blocking effect of the pair of heat dissipation pipes 5 is better.

[0040] It should be noted that the present invention is not suitable for direct water immersion.

[0041] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A waterproof heat dissipation structure for a power adapter, comprising a housing (1), a power circuit board (2) disposed in the housing (1), a power line (3) fixedly connected to the housing (1), and a power plug (4), characterized in that: A pair of heat dissipation pipes (5) are fixedly connected to the shell (1), and the ends of the pair of heat dissipation pipes (5) pass through the shell (1). A gap is provided at the opposite ends of the pair of heat dissipation pipes (5), and a micro heat dissipation fan (7) is provided in the gap. The micro heat dissipation fan (7) is fixedly connected to the inner wall of the shell (1). A driving mechanism (8) is provided on the shell (1), and a blocking member (9) is provided on the driving mechanism (8). The blocking member (9) is used to block the opposite ends of the pair of heat dissipation pipes (5).

2. A waterproof heat dissipation structure for a power adapter according to claim 1, characterized in that: The driving mechanism (8) comprises a precision screw (81), the precision screw (81) being rotatably connected in the housing (1), a threaded block (82) being rotatably connected to the precision screw (81), one end of the precision screw (81) being fixedly connected to a rotating block (83), a polished rod (84) being slidably connected to the threaded block (82), the rotating block (83) being arranged outside the housing (1), and the polished rod (84) being fixedly connected in the housing (1).

3. The waterproof heat dissipation structure for a power adapter according to claim 2, characterized in that: The opposite ends of a pair of heat dissipation pipes (5) are both fixedly connected to expansion covers (10).

4. The waterproof heat dissipation structure for a power adapter according to claim 3, characterized in that: The sealing member (9) comprises a bracket (91), the bracket (91) being fixedly connected to the threaded block (82), a pair of blocking plates (92) being fixedly connected to both ends of the bracket (91), the blocking plates (92) being arranged flush with the ports of the expansion housing (10), and the blocking plates (92) being slidably connected to the port positions of the expansion housing (10).

5. The waterproof heat dissipation structure for a power adapter according to claim 1, characterized in that: The heat dissipation conduit (5) is arranged in a serpentine structure.

6. A waterproof heat dissipation structure for a power adapter according to any one of claims 2 to 4, characterized in that: A pair of limiting rings (12) are fixedly connected to the polished rod (84), and the threaded block (82) is in movable contact with the limiting rings (12).

7. The waterproof heat dissipation structure for a power adapter according to claim 5, characterized in that: A dustproof tube (6) is provided at the end of each heat dissipation tube (5), a rubber sleeve (11) is provided on the dustproof tube (6), and the dustproof tube (6) is tightly plugged into the port of the heat dissipation tube (5) through the rubber sleeve (11).

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