Closed metal type efficient heat dissipation charger shell

Abstract

The invention discloses a closed metal type efficient heat dissipation charger shell which comprises a power supply charging mechanism, a heat dissipation protection mechanism is arranged outside the power supply charging mechanism, the power supply charging mechanism comprises a current output box, a voltage control box is arranged at one end of the current output box, and the heat dissipation protection mechanism comprises a first connecting assembly. A second connecting assembly is connected to one end of the first connecting assembly, a third connecting assembly is further fixedly installed at the end, away from the second connecting assembly, of the first connecting assembly, the first connecting assembly comprises a protective outer shell, and a first heat conduction inner shell is fixedly connected to the interior of the protective outer shell; the charger shell designed by the invention is composed of the power supply charging mechanism and the heat dissipation protection mechanism, and the heat dissipation protection mechanism can dissipate high-temperature heat generated by elements in the power supply charging mechanism in a heat conduction manner by utilizing high heat conductivity and corrosion resistance of the metal shielding cover and through the ventilation slots in the protection shell, so that the heat dissipation protection mechanism is more energy-saving and environment-friendly. Therefore, effective heat dissipation is realized.

Description

Technical Field

[0001] The invention relates to the technical field of chargers, and in particular to a sealed metal charger housing with high efficiency heat dissipation. Background Art

[0002] With the development of science and technology, the demand for various industrial equipment is growing. As an important part of industrial equipment, the demand for chargers is also increasing. The performance of the charger directly affects the operating stability and service life of industrial equipment. Therefore, the design and manufacture of the charger are crucial. In the design of the charger, the design of the charger shell is one of the keys. It not only needs to protect the internal components, but also needs to consider the heat dissipation problem to ensure the stable operation of the charger. In addition, since the charger is usually used in harsh environments, such as high temperature, high humidity, dust, etc., the charger shell also needs to have good waterproof and dustproof properties.

[0003] The shell of existing power charging devices is mainly made of plastic or metal materials, and heat is usually dissipated by opening holes or installing fans. However, this design cannot effectively handle the heat generated by the internal components of the charger, resulting in poor heat dissipation. At the same time, this shell design cannot effectively isolate the high temperature of the external environment and the overheating and heat conduction problems caused by the charger itself during operation, which can easily cause the risk of fire. Especially when used in hot summer weather, not only is the heat dissipation efficiency low, but it may also cause the power charging device to overheat due to internal high temperature, causing safety hazards, and cannot meet people's dual requirements for high heat dissipation performance and high safety of charging equipment.

[0004] Based on this, we propose a sealed metal charger housing with high efficiency in heat dissipation to solve the above-mentioned problems. Summary of the invention

[0005] The purpose of the present invention is to provide a sealed metal charger shell with high efficiency in heat dissipation, so as to solve the problems mentioned in the above background technology that the existing power charging device shell has poor heat dissipation effect in hot summer weather, is difficult to isolate the external high temperature, and has fire hazards due to poor heat dissipation of internal components.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A sealed metal charger housing with high efficiency heat dissipation, comprising a power charging mechanism, a heat dissipation protection mechanism is arranged outside the power charging mechanism, the power charging mechanism comprises a current output box, a voltage control box is arranged at one end of the current output box, the heat dissipation protection mechanism comprises a first connecting component, one end of the first connecting component is connected to a second connecting component, and a third connecting component is fixedly installed at one end of the first connecting component away from the second connecting component;

[0008] The first connection assembly includes a protective outer shell, a first heat-conducting inner shell is fixedly connected to the interior of the protective outer shell, two groups of installation cavities are opened inside the first heat-conducting inner shell, multiple groups of first heat dissipation fins are distributed around the outer wall of the first heat-conducting inner shell, a metal heat-conducting frame is installed inside the protective outer shell, multiple groups of fin slots are opened around the inner wall of the metal heat-conducting frame, a heat-conducting pipe body is connected to the interior of the metal heat-conducting frame, and the heat-conducting pipe body is arranged in a reciprocating bending manner inside the metal heat-conducting frame, and sealing slots are opened around both ends of the protective outer shell;

[0009] The current output box and the voltage control box are respectively arranged inside the installation cavity, and the plurality of groups of the first heat dissipation fins are arranged corresponding to the plurality of groups of fin slots so as to be fixedly installed inside the protective outer shell through the first heat-conducting inner shell;

[0010] The third connection assembly includes a water cooler, the interior of the water cooler is filled with coolant, refrigeration elements are installed on both sides of the inner wall of the water cooler, two groups of one-way valves are installed in the middle of the water cooler, a heat exchange tube body is arranged between the two groups of one-way valves, the heat exchange tube body is connected with the heat conduction tube body through the two groups of one-way valves, and an adjusting capillary is also arranged in the middle of the heat exchange tube body;

[0011] The interiors of the heat exchange tube body and the heat conduction tube body are both filled with water, and the interiors of the heat exchange tube body and the heat conduction tube body are also filled with dichloromethane.

[0012] Based on the above technical features, the charger shell of the present invention combines a power charging mechanism and a heat dissipation protection mechanism, and achieves efficient heat dissipation through a metal heat-conducting frame and a heat-conducting pipe filled with water and dichloromethane. When the inside of the charger is overheated, the gaseous dichloromethane absorbs heat to cool down and forms a high-density gas layer, isolating oxygen and preventing fire, thereby meeting the requirements of high heat dissipation performance and high safety.

[0013] Preferably, in the above-mentioned enclosed metal charger shell with high efficiency heat dissipation, a metal shielding cover is installed on one side of the current output box and the voltage control box, one end of the current output box is connected to a power cord, and a charging socket is also provided on the side of the current output box close to the power cord, and two groups of connecting terminals are connected to the inner sides of the current output box and the voltage control box, and two groups of connecting terminal holes are respectively opened at one end of the two groups of metal shielding covers, and the connecting terminal holes are plug-fitted with the connecting terminals, the installation cavity matches the metal shielding cover structure, and the installation cavity and the metal shielding cover are transitionally fitted.

[0014] Based on the above technical features, this solution adopts a structural design with transition fit between the installation cavity and the metal shielding cover, and the metal shielding cover is made of die-cast aluminum material. Die-cast aluminum is a high-strength, lightweight metal material with good thermal conductivity and corrosion resistance. The power charging mechanism can be sealed and installed inside the heat dissipation protection mechanism, and the high-temperature heat generated by the electrical components inside the power charging mechanism can also be dissipated in the form of heat conduction.

[0015] Preferably, in the above-mentioned sealed metal charger shell with high efficiency heat dissipation, a first ventilation slot is provided on one side of the metal heat-conducting frame close to the fin slot, and a second ventilation slot is also provided between the first ventilation slot and the protective outer shell.

[0016] Based on the above technical features, this solution can dissipate the high-temperature heat generated by the electrical components in the form of heat conduction by using the protective outer shell and the first heat-conducting inner shell through the first ventilation slot and the second ventilation slot added to the metal heat-conducting frame.

[0017] Preferably, in the above-mentioned closed metal charger shell with high efficiency heat dissipation, the heat-conducting pipe body includes a plurality of groups of connecting elbows, a guide groove is opened on one side of the plurality of connecting elbows, the opening of the guide groove is covered with a fluorinated polymer film, a gas container is arranged outside the guide groove, and a pressure relief valve is also arranged on the outer side of the gas container.

[0018] Based on the above technical features, the present invention adopts a fluorinated polymer membrane installed at the opening of the guide groove. The fluorinated polymer membrane adopts a polytetrafluoroethylene membrane in the prior art. The polytetrafluoroethylene membrane has strong hydrophobicity and chemical stability, so that it can effectively block the penetration of water and liquid dichloromethane. The polytetrafluoroethylene membrane also has a microporous structure and high air permeability, so that gaseous dichloromethane in a high-pressure state can enter the interior of the gas collection container.

[0019] Preferably, in the above-mentioned enclosed metal charger housing with high efficiency heat dissipation, sealing plates are arranged around one side of the water cooler and the second connecting component, the sealing plates match the sealing slot structure, the sealing plates and the sealing slot are snap-fitted, and a water-cooled power supply is also installed on the side of the water cooler away from the sealing plates.

[0020] Based on the above technical features, this solution can seal the second connecting component and the third connecting component to the two ends of the first connecting component through the structural design of the snap-fit ​​between the sealing plug plate and the sealing slot.

[0021] Preferably, in the above-mentioned enclosed metal charger housing with high efficiency heat dissipation, the internal rotation of the regulating capillary is connected to an impeller, a micro motor is installed on the external side of the regulating capillary, the output end of the micro motor is transmission-connected to the impeller, and a current sensing switch is also arranged on the top of the micro motor.

[0022] Based on the above technical features, this solution is through the current sensing switch installed on the top of the micro motor, and the status indicator light, the cooling element and the current sensing switch are all connected by electrical signals. The current sensing switch adopts the resistive current sensor in the prior art, and a constant current threshold is set in the resistive current sensor. When the current generated by the micro motor is measured to exceed the set value, the current sensing switch can control the status indicator light and the cooling element to start running. Similarly, when the current generated by the micro motor is measured to not exceed the set value, the current sensing switch can control the status indicator light and the cooling element to shut down, so that the heat dissipation protection mechanism can be charged according to the power supply.

[0023] Preferably, in the above-mentioned enclosed metal charger housing with high efficiency heat dissipation, a power display is installed on the outside of the water-cooled power supply, a charging port is arranged at the bottom of one side of the water-cooled power supply close to the power display, and status indicator lights are respectively connected on both sides of the charging port, and electrical signal connections are made between the status indicator light, the cooling element and the current sensing switch.

[0024] Based on the above technical features, this solution is designed with electrical signal connections between status indicator lights, refrigeration elements and current sensing switches. When the status indicator lights installed on both sides of the charging port are powered on, users can judge the circulation of water and dichloromethane in the heat exchange tube body and the heat conduction tube body, as well as the operation of the refrigeration elements in cooling the coolant through the light emitted by the status indicator lights. When the refrigeration elements installed on both sides of the inner wall of the water cooler are powered on, the coolant filled in the water cooler can be cooled.

[0025] The present invention provides a sealed metal charger housing with high efficiency heat dissipation, which has the following technical points and beneficial effects:

[0026] 1. Under normal operating temperature, the charger shell of the present invention effectively manages the heat generated by the power charging mechanism through its heat dissipation protection mechanism. The heat generated by the electronic components inside the power charging mechanism is first transferred to the metal heat-conducting frame through the first heat-conducting inner shell. The metal heat-conducting frame is designed with a first ventilation slot and a second ventilation slot. These ventilation slots form natural convection with the protective outer shell, and spontaneously dissipate heat to the external environment. This design utilizes the high thermal conductivity of metal, ensures that the power charging equipment operates stably at normal temperature, and maintains the appropriate working temperature of the electronic components.

[0027] 2. When the temperature inside the charger rises and exceeds the normal working range, the water and dichloromethane in the heat transfer tube begin to play a role. As the temperature rises, dichloromethane begins to vaporize and form high-pressure gas, which drives the water to circulate between the heat transfer tube and the heat exchange tube. This process is closed-loop through two sets of one-way valves, which accelerates the transfer and dissipation of heat. At the same time, the impeller in the regulating tube rotates under the impact of the flow of water and dichloromethane, driving the micro motor to rotate synchronously and generate current. The current sensing switch monitors this current and controls the status indicator light and the refrigeration element according to the preset threshold, realizing automatic regulation of the heat dissipation system to cope with sudden high temperatures inside the power charging equipment, while ensuring the safety of the operation of electronic components.

[0028] 3. In the extreme case where a fault occurs inside the power charging device and causes a sharp rise in temperature, the dichloromethane in the heat conducting tube will quickly vaporize and expand to form high-pressure gas. If the natural heat dissipation and the cooling effect of the refrigeration element are not enough to control the temperature, the pressure relief valve will be triggered to release the high-pressure gas into the gas container. The gaseous dichloromethane enters the gas container through the fluorinated polymer membrane to form a high-density gas layer, isolating oxygen and inhibiting the combustion and spread of the flame. At the same time, the volatility of dichloromethane helps to absorb heat, reduce the local temperature, and achieve a fire extinguishing effect. This design not only improves the heat dissipation performance of the power charging device itself, but also enhances the safety of the power charging device during charging and use, ensures its safe use under extremely high temperature conditions, and prevents accidents such as fire caused by a sharp rise in temperature due to a fault inside the power charging device.

[0029] 4. From the above, it can be seen that the present invention overcomes the heat dissipation limitations of the traditional charger casing through the innovatively designed heat dissipation protection structure. Under normal temperature, the metal heat-conducting frame and ventilation slots are used for spontaneous heat dissipation to ensure that the temperature of the equipment is stable under normal conditions. When the temperature rises and cannot meet the heat dissipation requirements, the water and dichloromethane in the heat-conducting pipe body flow through gasification circulation to achieve secondary heat absorption and cooling, avoiding high temperature accumulation. If ultra-high temperature occurs, the gaseous dichloromethane is further released through air pressure to isolate oxygen, achieve a fire extinguishing effect, and inhibit the occurrence and spread of fire, thereby significantly improving the safety of the charging equipment. This design not only improves the heat dissipation efficiency, especially under high temperature and overheating conditions, but also enhances the fire resistance of the equipment, meeting the dual requirements of modern power charging equipment for high heat dissipation performance and high safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0031] Figure 2 It is a schematic diagram of the disassembly of the power charging mechanism in the present invention;

[0032] Figure 3It is a schematic diagram of the disassembly of the heat dissipation protection mechanism in the present invention;

[0033] Figure 4 This is a schematic diagram of splitting the first connection component in the present invention;

[0034] Figure 5 This is a schematic diagram of the disassembly of the current output box in the present invention;

[0035] Figure 6 It is a schematic diagram of the protective outer shell structure in the present invention;

[0036] Figure 7 It is a schematic diagram of the connecting elbow structure in the present invention;

[0037] Figure 8 It is a schematic diagram of the structure of the first heat-conducting inner shell in the present invention;

[0038] Fig. 9 This is a schematic diagram of the split structure of the third connection component in the present invention;

[0039] Fig.10 It is a schematic cross-sectional view of the interior of the water cooler in the present invention;

[0040] Fig.11 It is a schematic diagram of the structure of the regulating capillary in the present invention;

[0041] Fig.12 It is a schematic diagram of the water-cooled power supply structure in the present invention;

[0042] Fig.13 It is a schematic diagram of the distribution structure of the heat-conducting pipe body in the present invention;

[0043] Fig.14 It is a partial schematic diagram of the positions of the first ventilation slot and the heat-conducting pipe body in the present invention;

[0044] Fig.15 It is a schematic structural diagram of the second heat-conducting inner shell in the present invention.

[0045] In the figure:

[0046] 1. Power charging mechanism; 2. Heat dissipation protection mechanism; 3. Current output box;

[0047] 31. Metal shielding cover; 32. Power cord; 33. Charging socket; 34. Connecting terminal; 35. Connecting terminal hole;

[0048] 4. Voltage control box; 5. First connection component;

[0049] 51. Protective outer shell;

[0050] 511, metal heat-conducting frame; 5111, first ventilation slot; 5112, second ventilation slot;

[0051] 512, fin slot;

[0052] 513, heat-conducting pipe body; 5131, connecting elbow; 5132, flow guide slot; 5133, fluorinated polymer membrane; 5134, gas container; 5135, pressure relief valve;

[0053] 514, sealing slot;

[0054] 52. first heat-conducting inner shell; 521. mounting cavity; 522. first heat-dissipating fin;

[0055] 53. Second heat-conducting inner shell; 531. Second heat-dissipating fins;

[0056] 6. A second connection component; 7. A third connection component;

[0057] 71, water cooler; 711, coolant; 712, refrigeration element; 713, one-way valve;

[0058] 714, heat exchange tube; 7141, water; 7142, dichloromethane;

[0059] 715, regulating capillary; 7151, impeller; 7152, micro motor; 7153, current sensing switch;

[0060] 72. Sealing plug plate;

[0061] 73. Water-cooled power supply; 731. Power indicator; 732. Charging port; 733. Status indicator light. DETAILED DESCRIPTION

[0062] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0063] The charger shell design used in existing high-end industrial equipment usually integrates multiple heat dissipation methods and fire prevention measures. The application of these designs fully demonstrates the importance of ensuring the safety and stability of equipment in complex environments. Modern industrial environments, especially extreme conditions such as high temperature, high humidity, and high dust, pose severe challenges to the reliability of equipment. To meet these challenges, multiple heat dissipation and fire prevention designs have become indispensable technical means.

[0064] In specific applications, the effectiveness of these designs has been proven many times, but there are still some safety hazards that may pose a threat to equipment and even personal safety if not taken seriously. For example:

[0065] In a high temperature environment, if the heat generated inside the equipment cannot be dissipated in a timely and effective manner, it may cause internal components to overheat, leading to equipment failure or spontaneous combustion. This is particularly evident in large-scale equipment that runs continuously for a long time. If the heat dissipation design is inadequate or the heat dissipation channel is blocked, the risk of overheating will be greatly increased;

[0066] In a high humidity environment, moisture accumulation inside the device housing may cause a short circuit on the internal circuit board, which may lead to device damage or fire. Therefore, moisture-proof design such as sealed housing, use of internal desiccant, and circuit board surface coating is essential.

[0067] In flammable and explosive environments, if the fireproof design of the charger casing is not perfect, electrical faults inside the equipment may cause sparks, leading to explosions or fires. This hidden danger is common in dangerous environments such as chemical plants and mines. Therefore, strict fireproof designs must be adopted, such as using flame-retardant materials, adding fireproof barriers, and automatic fire extinguishing devices.

[0068] Through multiple heat dissipation and fire protection designs, these hidden dangers can be controlled and alleviated to a certain extent, but the design still needs to be continuously optimized and improved, especially in the application process of new materials and new technologies, in order to cope with more complex and changing environmental challenges.

[0069] Example 1: Please refer to Figures 1 to 14 The present invention provides a technical solution for a sealed metal charger housing with high efficiency heat dissipation:

[0070] The power charging mechanism 1 includes a heat dissipation protection mechanism 2 disposed outside the power charging mechanism 1, the power charging mechanism 1 includes a current output box 3, one end of the current output box 3 is provided with a voltage control box 4, the heat dissipation protection mechanism 2 includes a first connecting component 5, one end of the first connecting component 5 is connected to a second connecting component 6, and one end of the first connecting component 5 away from the second connecting component 6 is also fixedly installed with a third connecting component 7;

[0071] The first connection assembly 5 includes a protective outer shell 51, a first heat-conducting inner shell 52 is fixedly connected to the interior of the protective outer shell 51, two groups of mounting cavities 521 are provided inside the first heat-conducting inner shell 52, and a plurality of groups of first heat dissipating fins 522 are distributed around the outer wall of the first heat-conducting inner shell 52, a metal heat-conducting frame 511 is installed inside the protective outer shell 51, a plurality of groups of fin slots 512 are provided around the inner wall of the metal heat-conducting frame 511, a heat-conducting pipe body 513 is connected to the interior of the metal heat-conducting frame 511, and the heat-conducting pipe body 513 is arranged in a reciprocating bending manner inside the metal heat-conducting frame 511, and sealing slots 514 are provided around both ends of the protective outer shell 51;

[0072] The current output box 3 and the voltage control box 4 are respectively arranged inside the installation cavity 521, and the plurality of first heat dissipation fins 522 are arranged corresponding to the plurality of fin slots 512, so as to be fixedly installed inside the protective outer shell 51 through the first heat-conducting inner shell 52;

[0073] The third connecting assembly 7 includes a water cooler 71, the interior of the water cooler 71 is filled with a coolant 711, refrigeration elements 712 are installed on both sides of the inner wall of the water cooler 71, two sets of one-way valves 713 are installed in the middle of the water cooler 71, a heat exchange pipe body 714 is arranged between the two sets of one-way valves 713, the heat exchange pipe body 714 is connected to both ends of the heat-conducting pipe body 513 through the two sets of one-way valves 713, and an adjusting capillary 715 is also arranged in the middle of the heat exchange pipe body 714; it should be noted that the heat-conducting pipe body 513 is arranged in a circular bending manner inside the metal heat-conducting frame 511 (such as Fig.13 As shown), both ends of the heat-conducting pipe body 513 extend to the interior of the water cooler 71, and are interconnected with the heat exchange pipe body 714 inside the water cooler 71 through two one-way valves 713, and according to actual use requirements, corresponding sealing measures are applied to the connection between the two (such as completing the connection through the use of external fixing devices and sealing gaskets).

[0074] The interior of the heat exchange tube body 714 and the heat conduction tube body 513 are both filled with water 7141 , and the interior of the heat exchange tube body 714 and the heat conduction tube body 513 are also filled with dichloromethane 7142 , so it can be understood as a mixed liquid of dichloromethane 7142 and water 7141 .

[0075] During operation, the heat-conducting pipe body 513 is connected to the heat-exchange pipe body 714 through two sets of one-way valves 713, and the interiors of the heat-conducting pipe body 513 and the heat-exchange pipe body 714 are filled with water 7141 and an appropriate amount of dichloromethane 7142. When the high-temperature heat generated by the electrical components inside the power charging mechanism 1 is transferred to the metal heat-conducting frame 511 through the first heat-conducting inner shell 52, the metal heat-conducting frame 511 can also transfer the heat to the water 7141 and dichloromethane 7142 through the heat-conducting pipe body 513 installed inside, so as to dissipate the high-temperature heat generated by the electrical components inside the power charging mechanism 1. The dichloromethane 7142 in this scheme is liquid at room temperature and insoluble in water. When the temperature rises to about 40°C, it will gasify and turn into gas, and gradually form high pressure. Due to continuous heat absorption, the dichloromethane 7142 in the heat-conducting pipe body 513 is gasified by the temperature increase, and the internal gas pressure increases, thereby squeezing the water body 7141 in the heat-conducting pipe body 513 to flow into the low-pressure heat exchange pipe body 714, and the heat-conducting pipe body 513 and the heat exchanger body 714 are The tube body 714 forms a closed loop through the one-way valve 713, and the water body 7141 and the dichloromethane 7142 can circulate between the heat-conducting tube body 513 and the heat-exchanging tube body 714 according to the air pressure difference (accelerating the heat absorption effect). When the water body 7141 and the dichloromethane 7142 flow in the pipeline, the impact force they generate drives the impeller 7151 inside the regulating capillary 715 to rotate, and the impeller 7151 drives the micro motor 7152 to rotate synchronously through the transmission connection.

[0076] As an embodiment of the present invention, Figures 5 to 7 As shown, a metal shielding cover 31 is installed on one side of the current output box 3 and the voltage control box 4, one end of the current output box 3 is connected to a power cord 32, and a charging socket 33 is also provided on the side of the current output box 3 close to the power cord 32. Two groups of connecting terminals 34 are connected to the inner sides of the current output box 3 and the voltage control box 4, and two groups of connecting terminal holes 35 are respectively opened at one end of the two groups of metal shielding covers 31, and the connecting terminal holes 35 are plug-fitted with the connecting terminals 34, the mounting cavity 521 matches the structure of the metal shielding cover 31, and the mounting cavity 521 and the metal shielding cover 31 are transitionally matched.

[0077] A first ventilation slot 5111 is defined on one side of the metal heat-conducting frame 511 close to the fin slot 512 , and a second ventilation slot 5112 is defined between the first ventilation slot 5111 and the protective outer shell 51 .

[0078] The heat-conducting pipe body 513 includes a plurality of connecting elbows 5131, one side of which is provided with a guide groove 5132, the opening of which is covered with a fluorinated polymer film 5133, a gas container 5134 is arranged outside the guide groove 5132, and a pressure relief valve 5135 is also arranged on one side outside the gas container 5134.

[0079] When working, the heat dissipation protection mechanism 2 is fixedly connected to the first heat-conducting inner shell 52 inside the protective outer shell 51. Since the installation cavity 521 and the metal shielding cover 31 are transitionally matched, and the metal shielding cover 31 is made of die-cast aluminum material, which is a high-strength, lightweight metal material with good thermal conductivity and corrosion resistance, the power charging mechanism 1 can be sealed and installed inside the heat dissipation protection mechanism 2. Since die-cast aluminum material and fin structure are used, die-cast aluminum material with grade A380 can be selected, which has a tensile strength of 270-370MPa, a yield strength of 100-200MPa, an elongation of 10%-20%, a hardness of 90-120HB, and good mechanical properties and corrosion resistance. The charger shell designed by the present invention can be fully sealed. On the one hand, it can effectively protect the electronic components of the charger, and on the other hand, it prevents dust or moisture from entering the charger, thereby improving the waterproof and dustproof performance of the charger. The fully sealed design can also prevent the internal components of the charger from being directly exposed to the air. At the same time, the heat dissipation measures of the device of the present invention are used to extend the service life of the charger. The heat dissipation protection mechanism 2 can also dissipate the high-temperature heat generated by the internal electrical components of the power charging mechanism 1 in the form of heat conduction through the first ventilation groove 5111 and the second ventilation groove 5112 opened on the metal heat conductive frame 511.

[0080] As an embodiment of the present invention, Figures 9 to 12 As shown, sealing plates 72 are arranged around one side of the water cooler 71 and the second connecting component 6. The sealing plates 72 match the sealing slot 514 structure, and the sealing plates 72 and the sealing slot 514 are snap-fitted. A water-cooled power supply 73 is also installed on the side of the water cooler 71 away from the sealing plates 72.

[0081] The internal rotation of the regulating capillary 715 is connected to an impeller 7151, and a micro motor 7152 is installed on the external side of the regulating capillary 715. The output end of the micro motor 7152 is connected to the impeller 7151 through a transmission connection, and a current sensing switch 7153 is also provided on the top of the micro motor 7152.

[0082] A power indicator 731 is installed on the outside of the water-cooled power supply 73. A charging port 732 is set at the bottom of the side of the water-cooled power supply 73 close to the power indicator 731. Status indicator lights 733 are also connected to both sides of the charging port 732. The status indicator light 733, the cooling element 712 and the current sensing switch 7153 are all connected by electrical signals.

[0083] During operation, when the water body 7141 and the dichloromethane 7142 circulate in the heat conducting pipe body 513 and the heat exchanging pipe body 714 under the influence of the air pressure difference, the impact force generated by the flowing water body 7141 and the dichloromethane 7142 is greater than the friction resistance of the impeller 7151. Therefore, when the flowing water body 7141 and the dichloromethane 7142 pass through the regulating capillary 715, the impeller 7151 installed inside the regulating capillary 715 can be driven to rotate. The impeller 7151 is connected to the output end of the micro motor 7152 through a transmission connection. The rotating impeller 7151 can drive the micro motor 7152 to rotate synchronously. The micro motor 7152 adopts the hand-cranked generator in the prior art. When the magnet on the rotor of the hand-cranked generator rotates, a changing magnetic field is generated around the stator coil, causing an induced electromotive force in the coil, which can generate current. In conjunction with the current sensing switch 7153 installed on the top of the micro motor 7152, the status indicator light 733, the cooling element 712 and the current sensing switch 7153 are all connected by electrical signals. The current sensing switch 7153 can monitor the current generated by the micro motor 7152 and control the switching status of the status indicator light 733 and the cooling element 712 according to the set current threshold.

[0084] Embodiment 2: The present invention also provides a second heat-conducting inner shell 53, such as Fig.15 As shown, the difference from the first embodiment is the different positions and configurations of the heat-conducting inner shell and the heat sink installed thereon. Specifically, in actual production and application, there are various heat-dissipating shells. For example, the second heat-conducting inner shell 53 provided by the present invention has a plurality of second heat-dissipating fins arranged on the second heat-conducting inner shell 53. Specifically, similarly to the above, the current output box 3 and the voltage control box 4 can also be installed in the second heat-conducting inner shell 53, and the second heat-conducting inner shell 53 is provided with second heat-dissipating fins 531. Similarly, based on the positions and configurations of the second heat-conducting inner shell 53 and the second heat-dissipating fins 531, the arrangement, position and size of the protective outer shell 51 and the heat-conducting pipe body 513 inside the protective outer shell 51 and other related The configuration, size and position distribution of the matching technical features are to meet the use of the second heat-conducting inner shell 53 and the second heat dissipating fins 531 of the present invention. Based on the technical ideas, principles and spirits of the present invention, the present invention is applicable to heat dissipating shells and heat sinks of different configurations to achieve the rationality, applicability and novelty of the overall technical solution. The present invention is not limited to any configuration of the heat dissipating shell and the shape and location of the heat sink. Although the embodiments of the present invention have been shown and described, it can be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirits of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

[0085] Working principle: 1. When the power charging device is used in a normal temperature environment:

[0086] The charger shell designed in the present invention is composed of a power charging mechanism 1 and a heat dissipation protection mechanism 2. The heat dissipation protection mechanism 2 includes a first connecting component 5, a second connecting component 6 and a third connecting component 7. The first heat-conducting inner shell 52 of the protective outer shell 51 is tightly connected to the power charging mechanism 1 to form a closed structure. The metal shielding cover 31 is made of die-cast aluminum material, which has high strength, light weight, good thermal conductivity and corrosion resistance. Through the first ventilation groove 5111 and the second ventilation groove 5112 on the metal heat-conducting frame 511, the high-temperature heat inside the power charging mechanism 1 can be communicated with the outside air through heat conduction, and the heat is dissipated spontaneously. This heat dissipation method can meet the heat dissipation requirements of the charger at room temperature, ensure that the equipment maintains a stable temperature during normal operation, and avoid overheating.

[0087] 2. When the power charging device is used in a high temperature environment:

[0088] When the electronic components inside the power charging mechanism 1 generate a large amount of heat and the temperature rises to a level that cannot be dissipated in time through spontaneous heat dissipation, the heat conduction system in the heat dissipation protection mechanism 2 begins to perform secondary heat absorption and cooling. At this time, the metal heat conduction frame 511 conducts heat to the water body 7141 and dichloromethane 7142 through the heat conduction pipe body 513. The dichloromethane 7142 is liquid at room temperature. When the temperature rises to about 40°C, the dichloromethane 7142 vaporizes to form high pressure, and squeezes the water body 7141 into the low-pressure heat exchange pipe body 7142 through the pressure difference. 4, water 7141 and dichloromethane 7142 circulate between the heat conducting pipe body 513 and the heat exchanging pipe body 714 through the one-way valve 713, further improving the heat dissipation efficiency. When the dichloromethane 7142 is gasified and flows with the water 7141, the impact force generated by the flow drives the impeller 7151 to rotate, driving the micro motor 7152 to generate electricity. The current sensing switch 7153 controls the operation of the state indicator light 733 and the refrigeration element 712 according to the current. After the refrigeration element 712 is turned on, it can cool the coolant 711 and accelerate the heat dissipation process.

[0089] 3. When the power charging equipment is used in an ultra-high temperature environment:

[0090] When the temperature of the power charging mechanism 1 rises sharply due to a fault such as overheating or short circuit, the internal temperature may rise rapidly, exceeding the normal heat dissipation capacity of the heat dissipation protection mechanism. At this time, the dichloromethane 7142 in the heat-conducting pipe body 513 quickly vaporizes and expands to form a higher gas pressure. When the gaseous dichloromethane 7142 cannot be effectively cooled back to liquid, it will pass through the fluorinated polymer membrane 5133, enter the gas container 5134, and be released through the pressure relief valve 5135. This high-density gaseous dichloromethane 7142 can form a gas layer that isolates oxygen in the charger, thereby effectively inhibiting the combustion and spread of flames. At the same time, the volatility of gaseous dichloromethane gives it a strong heat absorption capacity, which can further reduce the local temperature, achieve a fire extinguishing effect, and prevent the spread of fire. In addition, dichloromethane 7142 has good chemical stability, which can reduce the risk of chemical reactions or accidents, meet the heat dissipation requirements of charging equipment under ultra-high temperature conditions and ensure equipment safety.

[0091] It should be noted that the pressure relief pressure value of the pressure relief valve 5135 is preset, and the fluorinated polymer membrane 5133 adopts the polytetrafluoroethylene membrane in the prior art. The fluorinated polymer membrane has strong hydrophobicity and chemical stability, so that it can effectively block the penetration of water 7141 and liquid dichloromethane 7142, and the fluorinated polymer membrane also has a microporous structure and high air permeability, so that the gaseous dichloromethane 7142 in a high-pressure state can enter the interior of the gas container 5134.

Claims

1. A sealed metal charger housing with high efficiency heat dissipation, comprising a power charging mechanism (1), a heat dissipation protection mechanism (2) is arranged outside the power charging mechanism (1), the power charging mechanism (1) comprises a current output box (3), a voltage control box (4) is arranged at one end of the current output box (3), and is characterized in that: The heat dissipation protection mechanism (2) comprises a first connecting component (5), one end of the first connecting component (5) is connected to a second connecting component (6), and one end of the first connecting component (5) away from the second connecting component (6) is also fixedly mounted with a third connecting component (7); The first connection component (5) comprises a protective outer shell (51), the interior of the protective outer shell (51) is fixedly connected with a first heat-conducting inner shell (52), the interior of the first heat-conducting inner shell (52) is provided with two groups of installation cavities (521), the outer wall of the first heat-conducting inner shell (52) is also distributed with a plurality of groups of first heat dissipation fins (522), the interior of the protective outer shell (51) is installed with a metal heat-conducting frame (511), the inner wall of the metal heat-conducting frame (511) is provided with a plurality of groups of fin slots (512), the interior of the metal heat-conducting frame (511) is connected with a heat-conducting pipe body (513), the heat-conducting pipe body (513) is arranged in a reciprocating bending manner inside the metal heat-conducting frame (511), and sealing slots (514) are also provided around the two ends of the protective outer shell (51); The current output box (3) and the voltage control box (4) are respectively arranged inside the installation cavity (521), and a plurality of groups of the first heat dissipation fins (522) are arranged corresponding to a plurality of groups of fin slots (512) so as to be fixedly installed inside the protective outer shell (51) through the first heat-conducting inner shell (52); The third connection assembly (7) comprises a water cooler (71), the interior of the water cooler (71) is filled with a coolant (711), refrigeration elements (712) are installed on both sides of the inner wall of the water cooler (71), two groups of one-way valves (713) are installed in the middle of the water cooler (71), a heat exchange tube body (714) is arranged between the two groups of one-way valves (713), the heat exchange tube body (714) is connected to both ends of the heat conduction tube body (513) through the two groups of one-way valves (713), and an adjusting capillary (715) is also arranged in the middle of the heat exchange tube body (714); The interiors of the heat exchange tube body (714) and the heat conduction tube body (513) are both filled with water (7141), and the interiors of the heat exchange tube body (714) and the heat conduction tube body (513) are also filled with dichloromethane (7142).

2. A sealed metal charger housing with high efficiency heat dissipation according to claim 1, characterized in that: A metal shielding cover (31) is installed on one side of the current output box (3) and the voltage control box (4); one end of the current output box (3) is connected to a power line (32); a charging socket (33) is also provided on the side of the current output box (3) close to the power line (32); two groups of connection terminals (34) are connected to the inner sides of the current output box (3) and the voltage control box (4); two groups of connection terminal holes (35) are respectively opened at one end of the two groups of metal shielding covers (31); the connection terminal holes (35) and the connection terminals (34) are plug-fitted; the installation cavity (521) matches the structure of the metal shielding cover (31); and the installation cavity (521) and the metal shielding cover (31) are transitionally matched.

3. The sealed metal charger housing with high efficiency heat dissipation according to claim 1, characterized in that: A first ventilation slot (5111) is provided on one side of the metal heat-conducting frame (511) close to the fin slot (512), and a second ventilation slot (5112) is provided between the first ventilation slot (5111) and the protective outer shell (51).

4. The sealed metal charger housing with high efficiency heat dissipation according to claim 3, characterized in that: The heat-conducting pipe body (513) comprises a plurality of groups of connecting elbows (5131), one side of each of the plurality of groups of connecting elbows (5131) is provided with a flow guide slot (5132), the opening of the flow guide slot (5132) is covered with a fluorinated polymer film (5133), a gas container (5134) is arranged outside the flow guide slot (5132), and a pressure relief valve (5135) is also arranged on one side of the outside of the gas container (5134).

5. The sealed metal charger housing with high efficiency heat dissipation according to claim 1, characterized in that: The water cooler (71) and one side of the second connecting component (6) are provided with sealing plug plates (72) around them, the sealing plug plates (72) and the sealing slot (514) structure match each other, the sealing plug plates (72) and the sealing slot (514) are snap-fitted together, and a water-cooled power supply (73) is also installed on the side of the water cooler (71) away from the sealing plug plates (72).

6. The sealed metal charger housing with high efficiency heat dissipation according to claim 5, characterized in that: The regulating capillary (715) is rotatably connected to an impeller (7151) inside, a micro motor (7152) is installed on one side of the outside of the regulating capillary (715), an output end of the micro motor (7152) is transmission-connected to the impeller (7151), and a current sensing switch (7153) is also provided on the top of the micro motor (7152).

7. A sealed metal charger housing with high efficiency heat dissipation according to claim 6, characterized in that: A power indicator (731) is installed on the outside of the water-cooled power supply (73), a charging port (732) is arranged at the bottom of one side of the water-cooled power supply (73) close to the power indicator (731), and status indicator lights (733) are respectively connected to both sides of the charging port (732), and electrical signal connections are formed between the status indicator lights (733), the cooling element (712) and the current sensing switch (7153).

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