Portable automobile intelligent battery charger with heat dissipation and dust prevention structure

Abstract

The application discloses a portable automobile intelligent battery charger with a heat-dissipating dustproof structure and relates to the technical field of automobile chargers. The charger comprises a charger body with a built-in transformer and a heat-dissipating mechanism. The heat-dissipating mechanism is arranged in the charger body. The heat-dissipating mechanism comprises a heat-dissipating fan, a side heat-dissipating piece and a top heat-dissipating piece. The heat-dissipating fan is arranged at one end of the charger body. A dust screen is arranged on the charger body outside the outer end of the heat-dissipating fan. The side heat-dissipating piece comprises a rotating shaft, a side heat-conducting plate and a wing plate. An assembling groove is formed in the outer side of the charger body. The upper end of the wing plate is rotatably connected to the upper part of the assembling groove through the rotating shaft. The end surface of the rotating shaft is arranged in linkage with the central shaft of the heat-dissipating fan through a driving mechanism. The heat in the charger body is dissipated outward through the side heat-conducting plate. The top heat-dissipating piece comprises a heat-conducting pipe and a heat-conducting piece.

Description

Technical Field

[0001] This invention relates to the field of automotive charger technology, and in particular to a portable intelligent automotive battery charger with a heat dissipation and dustproof structure. Background Technology

[0002] A portable smart car battery charger is a dedicated charging device for automotive batteries that integrates power conversion and microprocessor control in a portable form. It typically consists of an AC input, a main power stage of a switching power supply, a detection and control unit, a human-machine interface, and various protection circuits. It can perform automated, multi-stage charging strategies such as constant current, constant voltage, and maintenance for different batteries including lead-acid, start-stop EFB, and lithium iron phosphate batteries. It also supports temperature compensation, over-temperature protection, and fault diagnosis. It is commonly used for daily charging and maintenance, delaying battery sulfation and extending battery life; for long-term maintenance of vehicles, motorcycles, and yachts during seasonal parking or in low-temperature environments; and for restoring and emergency charging of depleted or deeply discharged batteries.

[0003] A portable DC charging box for new energy vehicles, such as "CN223340471U", includes a box body. A lifting ring is fixedly mounted on the top of the box body. A main switch and a circuit on / off switch are fixedly mounted on the outer wall of the box body. A charging gun and a power input plug are also installed on the outer wall of the box body. Air inlets are also provided on the outer wall of the box body. This portable DC charging box for new energy vehicles integrates the charging control module into the inner cavity of the box body. The lifting ring on the top of the box body allows for flexible movement of the device when needed to charge the vehicle. This allows the device to be used to charge the vehicle whenever it is parked, eliminating the need to drive the vehicle to a charging station, which is very convenient and effectively improves the ease of use of the device.

[0004] However, in the existing technology, existing portable car smart battery chargers adopt a highly integrated compact housing structure in order to balance portability and aesthetics. The effective area of ​​the outer surface of the housing that can be used for heat dissipation is limited by the constraints of volume and appearance, making it difficult to reduce thermal resistance by adding external fins or expanding the housing. Therefore, most products rely on a single air cooling method to organize airflow inside the housing to remove heat from power devices such as rectifier bridges, PFC / main switching transistors, synchronous rectification, transformers and inductors. However, in the confined space, the height difference of the devices, wiring harnesses and decorative parts can easily form "airflow shadow areas", resulting in high hot spot temperature rise. Reliability can only be maintained by derating or intermittent operation, making it difficult to achieve stable and efficient heat dissipation without increasing the heat dissipation area of ​​the housing. Summary of the Invention

[0005] In view of the aforementioned existing problems, the present invention is proposed.

[0006] The purpose of this invention is to solve the problem of limited heat dissipation in existing portable car smart battery chargers due to their compact structure and limited heat dissipation area.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0008] On one hand, the present invention provides a portable intelligent car battery charger with a heat dissipation and dustproof structure, which includes a charger body with a built-in transformer and a heat dissipation mechanism. The heat dissipation mechanism is disposed in the charger body and includes a cooling fan, a side heat dissipation component, and a top heat dissipation component. The cooling fan is disposed at one end of the charger body, and a dustproof net is provided on the charger body located outside the cooling fan. The side heat dissipation component includes a rotating shaft, a side heat-conducting plate, and a wing plate. An assembly groove is provided on the outer side of the charger body. The upper end of the wing plate is rotatably connected to the upper part of the assembly groove through the rotating shaft. The end face of the rotating shaft is linked to the central shaft of the cooling fan through a driving mechanism. Heat inside the charger body is dissipated outward through the side heat-conducting plate. The top heat dissipation component includes a heat-conducting pipe and a heat-conducting component. The upper end of the transformer is connected to the heat-conducting pipe through the heat-conducting component. The upper end of the heat-conducting pipe is connected to the outside of the charger body.

[0009] Furthermore, a bottom heat-conducting plate is provided at the heat-generating area below the transformer, and the side heat-conducting plates are provided on both sides of the inner wall of the charger body. Multiple ventilation slots are provided on the side wall of the charger body at the assembly slot, and a heat-conducting block that fits into the ventilation slot is provided on the side of the wing plate facing the assembly slot.

[0010] The heat-conducting blocks on the wingplate are fitted into the ventilation slots. Heat from the side heat-conducting plates can be transferred to the wingplate through the heat-conducting blocks, and finally dissipated to the outside through the wingplate.

[0011] Furthermore, the wing plate includes a panel, a connecting plate, and a frame. There are two panels and they are disposed on the inner sides of both ends of the frame. There are multiple connecting plates and they are evenly disposed between the two panels. The two ends of the connecting plates are assembled and connected to the frame. The heat-conducting block is directly assembled and connected to one panel, and the other panel has heat dissipation fins on its outer side.

[0012] The panel, connecting plate, and frame are all made of thermally conductive materials. After the heat on the side heat-conducting plate is transferred to the heat-conducting block, the heat diffuses to one panel, and then diffuses outward through the connecting plate and another panel. The heat dissipation effect can be increased by setting heat dissipation fins.

[0013] Furthermore, connecting rings are rotatably sleeved on the outer sides of both ends of the rotating shaft, the connecting rings extend to the inner wall of the charger body and are assembled and connected with the side heat-conducting plate, and reinforcing ribs are provided on both sides of the inner wall of the charger body;

[0014] By using the connecting ring, a portion of the heat from the side heat-conducting plate can be transferred to the wing plate, where it can be directly dissipated through the swaying of the wing plate, thus improving heat dissipation efficiency.

[0015] Furthermore, the driving mechanism includes a gear assembly, a movable sleeve, a positioning gear, an auxiliary gear, and a rotating shaft. The positioning gear, the auxiliary gear, and the rotating shaft are all mounted on the inner wall of the charger body via a bracket. The rotating shaft is rotatably mounted inside the movable sleeve. The movable sleeve is driven to move up and down on the inner wall of the charger body via the rotating shaft. The auxiliary gear meshes with the positioning gear and the outer wall of the movable sleeve, respectively. The end face of the positioning gear is linked to the end face of the rotating shaft via a first belt. The end face of the rotating shaft is linked to the central shaft via the gear assembly.

[0016] By driving the cooling fan to rotate, the central shaft at its center rotates, and through the linkage of the gear assembly, the rotating shaft rotates, thus achieving smooth up and down movement of the movable sleeve on the inner wall of the charger body.

[0017] Furthermore, the inner wall of the movable sleeve is provided with toothed grooves on both sides. The rotating shaft is provided with a plurality of toothed blocks on one side wall of the movable sleeve that mesh with the toothed grooves. The toothed blocks are distributed on the rotating shaft in an area less than half the circumference of the rotating shaft. The bracket is slidably provided with an insert shaft. The auxiliary gear is sleeved on the outer wall of the insert shaft end face. The other end of the insert shaft slidably passes through the side wall of the charger body and extends outward.

[0018] When the rotating shaft is driven to rotate, its toothed block meshes with the toothed groove on one side, causing the moving sleeve to move upward. When the last toothed block separates from the toothed groove on that side, the first toothed block at the other end meshes with the toothed groove on the other side, and the rotating shaft continues to rotate, which can drive the moving sleeve to move downward as a whole. This is repeated to achieve the effect of moving the moving sleeve up and down, thereby achieving the effect of reciprocating rotation of the auxiliary gear meshing with the outer side of the moving sleeve, and finally achieving the effect of reciprocating swing of the wing plate.

[0019] Furthermore, the gear assembly includes a first gear, a second gear, and an outer wheel. The first gear is disposed on the outer side of the end face of the central shaft. The outer wheel is concentrically disposed with the central shaft and rotatably disposed on the outer end of the central shaft. The second gear is rotatably disposed on the inner wall of the charger body. The second gear meshes with the inner walls of the first gear and the outer wheel respectively. The end face of the outer wheel is linked to the end face of the rotating shaft through a second belt.

[0020] The rotation of the central shaft drives the second gear to rotate, which in turn drives the outer wheel to rotate. The rotational connection between the outer wheel and the central shaft is only used to support the outer wheel. The high-speed rotation of the central shaft can drive the large-diameter outer wheel to rotate slowly, achieving the effect of slow oscillation of the wingplate and avoiding damage to the wingplate.

[0021] Furthermore, the upper sidewall of the heat pipe is connected to a branch pipe, and multiple heat dissipation pipes are evenly arranged at the upper edge of the charger body. The lower end of the heat dissipation pipe is connected to the branch pipe. Both the branch pipe and the outer wall of the heat pipe are provided with a heat insulation layer. The upper end of the heat dissipation pipe is higher than the outer surface of the charger body. A windproof block is provided on the side of the upper end of the heat dissipation pipe away from the edge of the charger body.

[0022] The heat-conducting component transfers a large amount of heat dissipated by the transformer to the heat-conducting pipe. The heat-conducting pipe and the branch pipe are wrapped in the insulation layer, which causes most of the heat entering the heat-conducting pipe to flow upward through the branch pipe and finally dissipate heat from the heat dissipation pipe to the outside.

[0023] Furthermore, the upper end of the charger body is provided with an anti-collision cover. The lower edge of the anti-collision cover is connected to the upper part of the charger body through a telescopic shaft and a first spring. A piston is slidably provided inside the heat pipe. A connecting shaft is provided at the upper end of the piston. The upper end of the connecting shaft slides through the upper end of the heat pipe and the charger body and is connected to the anti-collision cover. A second spring is provided between the anti-collision cover and the charger body on the outside of the connecting shaft.

[0024] By compressing the space inside the heat pipe, the gas inside the heat pipe can be pushed towards the branch pipe, thereby accelerating the internal airflow and improving the heat dissipation effect.

[0025] The charger body has dustproof channels on the end away from the cooling fan.

[0026] The beneficial effects of this invention are:

[0027] 1. The present invention utilizes the cooperation of side heat dissipation components and top heat dissipation components. The side heat dissipation components dissipate part of the heat from the transformer to the side of the charger body through the side heat conduction plate. The wing plate is used to increase the heat dissipation area of ​​the casing. In addition, the swinging of the wing plate can accelerate the heat dissipation effect. The top heat dissipation component can conduct part of the heat upward.

[0028] 2. The wing plate of this invention can be in two states, suitable for different working environments. When the wing plate is in the closed state with the assembly slot, the heat-conducting block on the wing plate is engaged in the vent groove, so that the heat-conducting block is in direct contact with the side heat-conducting plate. The heat on the side heat-conducting plate can be transferred to the wing plate through the heat-conducting block, and finally dissipated to the outside through the wing plate. When the wing plate is in the open state, the heat on the side heat-conducting plate can be directly dissipated to the outside through the vent groove, reducing the heat transfer path and achieving the effect of rapid heat dissipation. The swing of the wing plate can be linked with the cooling fan. When the cooling fan is turned on, the wing plate can automatically swing to dissipate heat, achieving the effect of saving energy and reducing heat sources.

[0029] 3. The present invention transfers a portion of the heat dissipated by the transformer to the heat pipe through the heat-conducting component. The heat pipe and the branch pipe are wrapped in the heat insulation layer, which causes most of the heat entering the heat pipe to flow upward through the branch pipe and finally dissipate heat from the heat dissipation pipe. The wind baffle can promote the flow of heat towards the edge of the charger body and prevent the dissipated heat from accumulating on the top of the charger body.

[0030] 4. The invention uses an anti-collision cover to buffer the impact of external objects on the top of the charger body, ensuring the safety and quality of the charger body. On the other hand, when the anti-collision cover is subjected to pressure and moves downward, it drives the connecting shaft and piston to move downward. By compressing the space inside the heat pipe, the gas inside the heat pipe can be pushed to the branch pipe to accelerate the internal air flow and improve the heat dissipation effect. Attached Figure Description

[0031] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 A perspective view of the back of a portable intelligent car battery charger with a heat dissipation and dustproof structure provided by the present invention.

[0033] Figure 2 A front perspective view of a portable intelligent car battery charger with a heat dissipation and dustproof structure provided by the present invention;

[0034] Figure 3 A schematic diagram of the internal structure of a portable intelligent car battery charger with a heat dissipation and dustproof structure provided by the present invention.

[0035] Figure 4 A schematic diagram of the internal structure of a portable intelligent car battery charger with a heat dissipation and dustproof structure provided by the present invention.

[0036] Figure 5 A schematic diagram of the drive mechanism for a portable intelligent car battery charger with a heat dissipation and dustproof structure provided by the present invention.

[0037] Figure 6 A schematic diagram of the drive mechanism for a portable intelligent car battery charger with a heat dissipation and dustproof structure provided by the present invention.

[0038] Figure 7 A schematic diagram of the movable sleeve and rotating shaft structure of a portable intelligent car battery charger with heat dissipation and dust prevention structure provided by the present invention.

[0039] Figure 8 A schematic diagram of the internal structure of the wing plate of the portable intelligent car battery charger with heat dissipation and dust prevention structure provided by the present invention.

[0040] Figure 9 A schematic diagram of the charger body and anti-collision cover structure of a portable intelligent car battery charger with heat dissipation and dustproof structure provided by the present invention.

[0041] Figure 10 The present invention provides a portable intelligent car battery charger with a heat dissipation and dustproof structure. Figure 9 Enlarged schematic diagram of the structure at point A in the middle;

[0042] Figure 11 The present invention provides a portable intelligent car battery charger with a heat dissipation and dustproof structure. Figure 9 Enlarged schematic diagram of the structure at point B.

[0043] Legend:

[0044] 1. Transformer; 2. Charger body; 311. Cooling fan; 312. Side heat sink; 3121. Shaft; 3122. Side heat conduction plate; 3123. Wing plate; 3124. Assembly slot; 313. Top heat sink; 3131. Heat conduction pipe; 3132. Heat conduction component; 32. Central shaft; 4. Dustproof net; 511. Bottom heat conduction plate; 512. Ventilation groove; 513. Heat conduction block; 521. Panel; 522. Connecting plate; 523. Frame; 524. Heat dissipation fins; 531. Connecting ring; 532. Reinforcing rib; 611. Movable 612. Positioning gear; 613. Auxiliary gear; 614. Rotating shaft; 615. Bracket; 616. First belt; 621. Gear groove; 622. Gear block; 623. Insert shaft; 631. First gear; 632. Second gear; 633. Outer wheel; 634. Second belt; 711. Branch pipe; 712. Heat dissipation pipe; 713. Insulation layer; 714. Wind baffle; 721. Anti-collision cover; 722. Telescopic shaft; 723. First spring; 724. Piston; 725. Connecting shaft; 726. Second spring; 8. Dustproof groove. Detailed Implementation

[0045] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0046] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0047] Secondly, as used herein, "an embodiment" or "embodiment" refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments. Example 1

[0048] Please see Figures 1-11 The present invention provides a technical solution:

[0049] A portable smart car battery charger with a heat dissipation and dustproof structure includes a charger body 2 with a built-in transformer 1 and a heat dissipation mechanism. The heat dissipation mechanism is located inside the charger body 2 and includes a cooling fan 311, a side heat dissipation component 312 and a top heat dissipation component 313.

[0050] A cooling fan 311 is provided at one end of the charger body 2. A dustproof net 4 is provided on the charger body 2 located outside the cooling fan 311. A dustproof channel 8 is provided at the end of the charger body 2 away from the cooling fan 311. Reinforcing ribs 532 are provided on both sides of the inner wall of the charger body 2.

[0051] The side heat sink 312 includes a rotating shaft 3121, a side heat conduction plate 3122 and a wing plate 3123. The outer side of the charger body 2 is provided with an assembly groove 3124. The upper end of the wing plate 3123 is rotatably connected to the upper part of the assembly groove 3124 through the rotating shaft 3121. The end face of the rotating shaft 3121 is linked with the central shaft 32 of the cooling fan 311 through a drive mechanism. The heat inside the charger body 2 is dissipated to the outside through the side heat conduction plate 3122.

[0052] In addition, a bottom heat-conducting plate 511 is provided at the heat-generating area below the transformer 1, and a side heat-conducting plate 3122 is provided on both sides of the inner wall of the charger body 2. Multiple ventilation slots 512 are provided on the side wall of the charger body 2 at the assembly slot 3124. A heat-conducting block 513 that fits properly with the ventilation slot 512 is provided on the side of the wing plate 3123 facing the assembly slot 3124.

[0053] In this process, the heat emitted from below the transformer 1 is transferred to the side heat-conducting plate 3122 through the bottom heat-conducting plate 511. If the wing plate 3123 and the mounting groove 3124 are closed, the heat-conducting block 513 on the wing plate 3123 is engaged in the venting groove 512, so that the heat-conducting block 513 directly contacts the side heat-conducting plate 3122. The heat on the side heat-conducting plate 3122 can be transferred to the wing plate 3123 through the heat-conducting block 513, and finally dissipated to the outside through the wing plate 3123. If the wing plate 3123 is in the open state, the heat on the side heat-conducting plate 3122 can be directly dissipated to the outside through the venting groove 512, reducing the heat transfer path and achieving the effect of rapid heat dissipation.

[0054] It should be noted that the charger body 2 has not only the transformer 1 as a heat source, but also other smaller heat sources, all of which can be connected to the side heat-conducting plate 3122 through a heat-conducting structure for heat dissipation.

[0055] In addition, the wing plate 3123 includes a panel 521, a connecting plate 522 and a frame 523. There are two panels 521 and they are located on the inner sides of both ends of the frame 523. There are multiple connecting plates 522 and they are evenly arranged between the two panels 521. The two ends of the connecting plate 522 are assembled and connected to the frame 523. The heat conduction block 513 is directly assembled and connected to one panel 521. The other panel 521 has heat dissipation fins 524 on its outer side.

[0056] Among them, panel 521, connecting plate 522 and frame 523 are all thermally conductive materials. Panel 521 and connecting plate 522 are both connected to the rotating shaft 3121. After the heat on the side heat-conducting plate 3122 is transferred to the heat-conducting block 513, the heat is diffused to one panel 521, and then diffused outward through the connecting plate 522 and the other panel 521. The heat dissipation effect can be increased by setting heat dissipation fins 524.

[0057] In addition, connecting rings 531 are rotatably sleeved on the outer sides of both ends of the rotating shaft 3121. The connecting rings 531 extend to the inner wall of the charger body 2 and are assembled and connected to the side heat conduction plate 3122.

[0058] Among them, through the connecting ring 531, a portion of the heat on the side heat conduction plate 3122 can be conducted to the wing plate 3123 through the connecting ring 531. The heat is directly dissipated by the swing of the wing plate 3123, which accelerates the heat dissipation efficiency. In addition, the setting of the reinforcing rib 532 can increase the support strength of the side wall of the charger body 2, improve its impact resistance, and increase its service life.

[0059] The top heat sink 313 includes a heat pipe 3131 and a heat pipe 3132. The upper end of the transformer 1 is connected to the heat pipe 3131 through the heat pipe 3132. The upper end of the heat pipe 3131 is connected to the outside of the charger body 2.

[0060] In addition, a branch pipe 711 is connected to the upper side wall of the heat pipe 3131, and multiple heat dissipation pipes 712 are evenly arranged at the upper edge of the charger body 2. The lower end of the heat dissipation pipe 712 is connected to the branch pipe 711. Both the branch pipe 711 and the outer wall of the heat pipe 3131 are provided with a heat insulation layer 713. The upper end of the heat dissipation pipe 712 is higher than the outer surface of the charger body 2. A wind baffle 714 is provided on the side of the upper end of the heat dissipation pipe 712 away from the edge of the charger body 2.

[0061] The heat-conducting component 3132 transfers a large amount of heat emitted by the transformer 1 to the heat-conducting pipe 3131. The heat-conducting pipe 3131 and the branch pipe 711 are wrapped in the insulation layer 713, which causes most of the heat entering the heat-conducting pipe 3131 to flow upward through the branch pipe 711 and finally dissipate heat from the heat dissipation pipe 712. The wind baffle 714 can promote the flow of heat towards the edge of the charger body 2 and prevent the emitted heat from accumulating on the top of the charger body 2.

[0062] In addition, the upper end of the charger body 2 is provided with a shockproof cover 721. The lower edge of the shockproof cover 721 is connected to the upper part of the charger body 2 through a telescopic shaft 722 and a first spring 723. A piston 724 is slidably provided inside the heat pipe 3131. A connecting shaft 725 is provided at the upper end of the piston 724. The upper end of the connecting shaft 725 slides through the upper end of the heat pipe 3131 and the charger body 2 and is connected to the shockproof cover 721. A second spring 726 is provided between the shockproof cover 721 on the outside of the connecting shaft 725 and the charger body 2.

[0063] The anti-collision cover 721 serves two purposes: firstly, it buffers the impact of external objects on the top of the charger body 2, ensuring the safety and quality of the charger body 2; secondly, when the anti-collision cover 721 is subjected to pressure and moves downward, it drives the connecting shaft 725 and piston 724 downward, compressing the space inside the heat pipe 3131 and pushing the gas inside the heat pipe 3131 towards the branch pipe 711 to accelerate the internal airflow and improve the heat dissipation effect. Example 2

[0064] Please see Figures 1-11 Based on Example 1, this example provides a portable smart car battery charger with a heat dissipation and dustproof structure, the specific idea of ​​which is as follows:

[0065] The drive mechanism includes a gear assembly, a moving sleeve 611, a positioning gear 612, an auxiliary gear 613, and a rotating shaft 614;

[0066] The positioning gear 612, auxiliary gear 613 and rotating shaft 614 are all mounted on the inner wall of the charger body 2 via bracket 615. The rotating shaft 614 is rotatably mounted in the movable sleeve 611. The movable sleeve 611 is driven to move up and down on the inner wall of the charger body 2 via the rotating shaft 614. The auxiliary gear 613 meshes with the positioning gear 612 and the outer wall of the movable sleeve 611 respectively. The end face of the positioning gear 612 is linked to the end face of the rotating shaft 6121 via the first belt 616. The end face of the rotating shaft 614 is linked to the central shaft 32 via the gear assembly.

[0067] The cooling fan 311 is driven to rotate, which in turn drives the central shaft 32 to rotate. The gear assembly drives the rotating shaft 614 to rotate, thus enabling the movable sleeve 611 to move smoothly up and down on the inner wall of the charger body 2. Since the auxiliary gear 613 meshes with the positioning gear 612 and the outer wall of the movable sleeve 611 respectively, the up and down movement of the movable sleeve 611 can drive the positioning gear 612 and the auxiliary gear 613 to rotate synchronously, which in turn drives the rotating shaft 3121 linked with it to rotate, thus enabling the wing plate 3123 to swing up and down. This can accelerate the airflow on both sides of the charger body 2 and achieve the effect of accelerating heat dissipation.

[0068] In addition, toothed grooves 621 are provided on both sides of the inner wall of the movable sleeve 611. The rotating shaft 614 is provided on one side wall of the movable sleeve 611 and has multiple toothed blocks 622 that mesh with the toothed grooves 621. The toothed blocks 622 are distributed on the rotating shaft 614 in a range less than half the circumference of the rotating shaft 614. The insert shaft 623 is slidably passed through the bracket 615. The auxiliary gear 613 is sleeved on the outer wall of the end face of the insert shaft 623. The other end of the insert shaft 623 slidably passes through the side wall of the charger body 2 and extends outward.

[0069] When the rotating shaft 614 is driven to rotate, its tooth block 622 meshes with the tooth groove 621 on one side, causing the moving sleeve 611 to move upward. When the last tooth block 622 separates from the tooth groove 621 on that side, the first tooth block 622 at the other end meshes with the tooth groove 621 on the other side. The rotating shaft 614 continues to rotate, which can drive the moving sleeve 611 to move downward as a whole. By repeating this process, the moving sleeve 611 can be moved up and down repeatedly, thereby achieving the effect of reciprocating rotation of the auxiliary gear 613 that meshes with the outer side of the moving sleeve 611, and finally achieving the effect of reciprocating swing of the wing plate 3123.

[0070] It should be noted that by pushing the insertion shaft 623 into the charger body 2, the auxiliary gear 613 is displaced from the positioning gear 612 and the moving sleeve 611, losing the linkage of the auxiliary gear 613. The up and down movement of the moving sleeve 611 cannot drive the positioning gear 612 to rotate, thus making it impossible to swing the wing plate 3123 up and down. For locations with limited space for the charger body 2, heat dissipation can be achieved by engaging the wing plate 3123 with the mounting slot 3124. Under normal large space conditions, the auxiliary gear 613 can be pulled outward before the cooling fan 311 is turned on, causing the auxiliary gear 613 to mesh with the positioning gear 612 and the moving sleeve 611. When the cooling fan 311 is turned on, it can drive the wing plate 3123 to swing, further accelerating heat dissipation.

[0071] As one example,

[0072] The gear assembly includes a first gear 631, a second gear 632, and an outer gear 633;

[0073] The first gear 631 is located on the outer side of the end face of the central shaft 32. The outer wheel 633 is concentrically arranged with the central shaft 32 and rotatably arranged on the outer end of the central shaft 32. The second gear 632 is rotatably arranged on the inner wall of the charger body 2. The second gear 632 meshes with the inner walls of the first gear 631 and the outer wheel 633 respectively. The end face of the outer wheel 633 is linked to the end face of the rotating shaft 614 through the second belt 634.

[0074] The rotation of the central shaft 32 drives the second gear 632 to rotate, which in turn drives the outer wheel 633 to rotate. The rotational connection between the outer wheel 633 and the central shaft 32 is only used to support the outer wheel 633. The high-speed rotation of the central shaft 32 can drive the large-diameter outer wheel 633 to rotate slowly, achieving the effect of slowly swinging the wing plate 3123 and avoiding damage to the wing plate 3123.

[0075] Working principle: When the charger is charging, its main internal heat source comes from the transformer 1. Through the cooperation of the side heat sink 312 and the top heat sink 313, the side heat sink 312 dissipates some of the heat from the transformer 1 to the side of the charger body 2 through the side heat conduction plate 3122. The swinging of the wing plate 3123 can accelerate the heat dissipation effect. Specifically, when the wing plate 3123 is closed with the mounting groove 3124, the heat conduction block 513 on the wing plate 3123 is engaged in the vent groove 512, so that the heat conduction block 513 is engaged in the vent groove 512. 3. Directly in contact with the side heat-conducting plate 3122, the heat on the side heat-conducting plate 3122 can be transferred to the wing plate 3123 through the heat-conducting block 513, and finally dissipated outward through the wing plate 3123. If the wing plate 3123 is in the open state, the heat on the side heat-conducting plate 3122 can be directly dissipated outward through the vent groove 512, reducing the heat transfer path and achieving a rapid heat dissipation effect. The oscillation of the wing plate 3123 can be linked with the cooling fan 311. When the cooling fan 311 is turned on, the wing plate 3123 can automatically... The swing-type heat dissipation achieves energy saving and reduces heat sources. In addition, the top heat sink 313 transfers some of the heat dissipated by the transformer 1 to the heat pipe 3131 through the heat conduction component 3132. The heat pipe 3131 and the branch pipe 711 are wrapped in the insulation layer 713, which causes most of the heat entering the heat pipe 3131 to flow upward through the branch pipe 711 and finally dissipate heat outward from the heat dissipation pipe 712. The wind baffle 714 can promote the flow of heat towards the edge of the charger body 2, preventing the dissipated heat from accumulating on the top of the charger body 2. In addition, the anti-collision cover 721 can be used to buffer the impact of external objects on the top of the charger body 2, ensuring the safety and quality of the charger body 2. On the other hand, when the anti-collision cover 721 is subjected to pressure and moves downward, it drives the connecting shaft 725 and the piston 724 to move downward. By compressing the space inside the heat pipe 3131, the gas inside the heat pipe 3131 can be pushed towards the branch pipe 711 to accelerate the internal air flow and improve the heat dissipation effect.

[0076] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A portable automotive smart battery charger with a heat dissipation and dustproof structure, comprising a charger body (2) with a built-in transformer (1) and a heat dissipation mechanism, wherein the heat dissipation mechanism is disposed within the charger body (2), characterized in that: The heat dissipation mechanism includes a cooling fan (311), a side heat sink (312), and a top heat sink (313). The cooling fan (311) is located at one end of the charger body (2). A dustproof net (4) is provided on the charger body (2) located outside the cooling fan (311). The side heat sink (312) includes a rotating shaft (3121), a side heat conduction plate (3122), and a wing plate (3123). An assembly slot (3124) is provided on the outer side of the charger body (2). The upper end of the wing plate (3123) is connected to the rotating shaft (3121). The rotating shaft (3121) is rotatably connected to the top of the mounting slot (3124). The end face of the rotating shaft (3121) is linked with the central shaft (32) of the cooling fan (311) through the drive mechanism. The heat inside the charger body (2) is dissipated to the outside through the side heat conduction plate (3122). The top heat dissipation component (313) includes a heat conduction pipe (3131) and a heat conduction component (3132). The upper end of the transformer (1) is connected to the heat conduction pipe (3131) through the heat conduction component (3132). The upper end of the heat conduction pipe (3131) is connected to the outside of the charger body (2). The driving mechanism includes a gear assembly, a movable sleeve (611), a positioning gear (612), an auxiliary gear (613), and a rotating shaft (614). The positioning gear (612), the auxiliary gear (613), and the rotating shaft (614) are all mounted on the inner wall of the charger body (2) via a bracket (615). The rotating shaft (614) is rotatably mounted inside the movable sleeve (611). The movable sleeve (611) is driven to move up and down on the inner wall of the charger body (2) via the rotating shaft (614). The auxiliary gear (613) meshes with the positioning gear (612) and the outer wall of the movable sleeve (611) respectively. The end face of the positioning gear (612) is linked to the end face of the rotating shaft (3121) via a first belt (616). The end face of the rotating shaft (614) is linked to the central shaft (32) via the gear assembly. The inner wall of the movable sleeve (611) is provided with toothed grooves (621) on both sides. The rotating shaft (614) is provided with a plurality of toothed blocks (622) on one side wall of the movable sleeve (611) that mesh with the toothed grooves (621). The toothed blocks (622) are distributed on the rotating shaft (614) in an area less than half the circumference of the rotating shaft (614). The bracket (615) is slidably provided with a plug shaft (623). The auxiliary gear (613) is sleeved on the outer wall of the end face of the plug shaft (623). The other end of the plug shaft (623) slides through the side wall of the charger body (2) and extends outward. The gear assembly includes a first gear (631), a second gear (632), and an outer wheel (633). The first gear (631) is disposed on the outer side of the end face of the central shaft (32). The outer wheel (633) is concentrically disposed with the central shaft (32) and rotatably disposed on the outer end of the central shaft (32). The second gear (632) is rotatably disposed on the inner wall of the charger body (2). The second gear (632) meshes with the inner walls of the first gear (631) and the outer wheel (633) respectively. The end face of the outer wheel (633) is linked to the end face of the rotating shaft (614) through a second belt (634).

2. The portable automobile intelligent battery charger with heat-dissipation and dust-proof structure according to claim 1, characterized in that, The transformer (1) is provided with a bottom heat-conducting plate (511) at the heat-generating part below it. The side heat-conducting plate (3122) is provided on both sides of the inner wall of the charger body (2). Multiple ventilation slots (512) are provided on the side wall of the charger body (2) at the assembly slot (3124). The wing plate (3123) facing the assembly slot (3124) is provided with a heat-conducting block (513) that fits into the ventilation slot (512).

3. The portable automobile intelligent battery charger with heat-dissipation and dust-proof structure according to claim 2, characterized in that, The wing plate (3123) includes a panel (521), a connecting plate (522) and a frame (523). There are two panels (521) and they are arranged on the inner sides of both ends of the frame (523). There are multiple connecting plates (522) and they are evenly arranged between the two panels (521). The two ends of the connecting plate (522) are assembled and connected to the frame (523). The heat-conducting block (513) is directly assembled and connected to one panel (521). The other panel (521) has heat dissipation fins (524) on its outer side.

4. The portable automotive smart battery charger with a heat dissipation and dustproof structure according to claim 3, characterized in that, The outer sides of both ends of the rotating shaft (3121) are fitted with connecting rings (531), which extend to the inner wall of the charger body (2) and are assembled and connected with the side heat-conducting plate (3122). The inner walls of the charger body (2) are provided with reinforcing ribs (532).

5. The portable automobile intelligent battery charger with heat-dissipation and dust-proof structure according to claim 1, characterized in that, The upper side wall of the heat pipe (3131) is connected to a branch pipe (711). Multiple heat dissipation pipes (712) are evenly arranged at the upper edge of the charger body (2). The lower end of the heat dissipation pipe (712) is connected to the branch pipe (711). The outer walls of the branch pipe (711) and the heat pipe (3131) are both provided with a heat insulation layer (713). The upper end of the heat dissipation pipe (712) is higher than the outer surface of the charger body (2). A wind baffle (714) is provided on the side of the upper end of the heat dissipation pipe (712) away from the edge of the charger body (2).

6. The portable automobile intelligent battery charger with heat-dissipation and dust-proof structure according to claim 5, characterized in that, The upper end of the charger body (2) is provided with a shockproof cover (721). The lower edge of the shockproof cover (721) is connected to the upper part of the charger body (2) through a telescopic shaft (722) and a first spring (723). The upper part of the heat pipe (3131) is provided with a piston (724). The upper end of the piston (724) is provided with a connecting shaft (725). The upper end of the connecting shaft (725) slides through the upper end of the heat pipe (3131) and the charger body (2) and is connected to the shockproof cover (721). A second spring (726) is provided between the shockproof cover (721) on the outside of the connecting shaft (725) and the charger body (2).

7. The portable automotive smart battery charger with a heat dissipation and dustproof structure according to claim 6, characterized in that, The charger body (2) is provided with a dustproof channel (8) at the end away from the cooling fan (311).

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