Enclosed automobile inverter charger with internal circulation heat dissipation

Abstract

The utility model discloses a closed automobile inverter charger with internal circulation heat dissipation, which comprises a charger shell, a heat pipe radiator, a circulation liquid cooling heat exchanger, a Peltier refrigeration sheet and a main control board fixed on the inner side of the charger shell, and the Peltier refrigeration sheet is fixedly adhered between the bottom end of the heat pipe radiator and the top surface of the circulation liquid cooling heat exchanger. The top end of the heat pipe radiator penetrates to the outer side of the top face of the charger shell, and the circulating liquid cooling heat exchanger is fixedly installed on the top face of the main control board. According to the utility model, a combined heat dissipation system of the internal circulation liquid cooling heat exchanger and the Peltier refrigeration sheet is arranged in the charger, efficient heat dissipation is realized by using liquid cooling and thermoelectric effects, and the heat dissipation effect of the inverter charger in a closed environment is ensured, so that the reliability and the stability of equipment are improved; and furthermore, through a circulating conveying system of the cooling medium, the flowing of the cooling liquid in the system is effectively accelerated, the heat exchange efficiency is improved, the generation of a high-temperature area is avoided, and the service life of the charger is further prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile inverter chargers, in particular to a closed automobile inverter charger with internal circulation heat dissipation. Background Art

[0002] Currently, most inverter chargers on the market use air cooling or passive cooling, typically using heat sinks and fans inside the charger to cool the device. This air cooling system primarily relies on fans forcing air to flow through the heat sink, dissipating heat and achieving cooling. However, air cooling systems are limited when the charger operates for extended periods, especially in enclosed environments, where heat dissipation efficiency is low. Furthermore, air cooling systems can introduce dust into the airflow, clogging the heat dissipation channels and shortening the device's lifespan. Furthermore, the fan generates noise, making it unsuitable for applications requiring silence.

[0003] Traditional air-cooling methods have the following shortcomings: First, the cooling efficiency of air-cooling systems is limited. Especially in sealed spaces, heat cannot be quickly dissipated, which can lead to high-temperature areas within the device, affecting circuit stability and component lifespan. Second, the cooling effect of air-cooling systems is difficult to precisely control, and cooling capacity cannot be adjusted promptly according to temperature changes, resulting in energy waste or insufficient heat dissipation. Furthermore, traditional cooling solutions often lack intelligent temperature control, and the device cannot automatically adjust the cooling system's power when overheating, posing a risk of overheating and damage. Therefore, there is an urgent need for an efficient and intelligent heat dissipation solution to ensure reliable operation of chargers in closed environments while reducing energy consumption. In light of these issues, this study addresses these issues and proposes a closed-type automotive inverter charger with internal heat dissipation to address these issues. The goal is to achieve both a solution and improved practical value through this technology. Utility Model Content

[0004] The utility model aims to solve the technical problems existing in the prior art or related technologies.

[0005] The utility model relates to a closed automobile inverter charger with internal circulation heat dissipation, comprising: a charger shell, a heat pipe radiator, a circulating liquid cooling heat exchanger and a Peltier cooling sheet and a main control board fixed on the inner side of the charger shell, the Peltier cooling sheet is fixedly adhered between the bottom end of the heat pipe radiator and the top surface of the circulating liquid cooling heat exchanger, and the top end of the heat pipe radiator passes through to the outer side of the top surface of the charger shell, the circulating liquid cooling heat exchanger is fixedly installed on the top surface of the main control board, the circulating liquid cooling heat exchanger comprises a heat transfer liquid box, a heat exchange liquid box and a circulation pump group, the heat exchange liquid box is fixed to the top surface of the heat transfer liquid box, and the heat transfer liquid box and the internal cavity of the heat exchange liquid box are connected to each other, the circulation pump group is used for circulating liquid flow in the heat transfer liquid box and the heat exchange liquid box, the top surface of the heat exchange liquid box and the bottom surface of the heat pipe radiator are respectively in contact with the cooling surface and heating surface of the Peltier cooling sheet.

[0006] This structure achieves efficient heat dissipation by combining an internal circulation liquid cooling system with a Peltier component with thermoelectric effect, ensuring good heat dissipation performance of the inverter charger in a closed environment, thereby improving equipment stability and service life.

[0007] In a preferred example, the present invention can be further configured as follows: a thermal grease layer is provided on the upper and lower surfaces of the circulating liquid-cooled heat exchanger and the upper and lower surfaces of the Peltier cooling plate, so as to improve the heat conductivity between the main control board and the circulating liquid-cooled heat exchanger, between the circulating liquid-cooled heat exchanger and the Peltier cooling plate, and between the Peltier cooling plate and the heat pipe radiator.

[0008] By providing a thermal grease layer, the heat conduction efficiency between components is effectively enhanced, ensuring that heat is quickly transferred to the external heat dissipation structure, improving the heat dissipation effect and avoiding internal temperature accumulation.

[0009] In a preferred example, the present invention can be further configured as follows: communication holes are provided on the surfaces of the thermal liquid box and the heat exchange liquid box, and the communication holes and the circulation pump assembly are respectively located at diagonal ends of the thermal liquid box.

[0010] This design optimizes the coolant flow path by setting diagonal connecting holes on the surface of the thermal fluid box and the heat exchange fluid box, ensuring that the coolant can circulate evenly in the system and improving cooling efficiency.

[0011] In a preferred example, the present invention can be further configured as follows: the thermal fluid box and the heat exchange fluid box are both metal components, and the internal cavity of the thermal fluid box is a coil-shaped cavity.

[0012] By using metal materials and a coil-shaped cavity design, the heat conduction efficiency of the coolant is improved, the heat dissipation capacity of the liquid cooling system is enhanced, and the service life of the equipment is further extended.

[0013] In a preferred example, the present invention can be further configured as follows: the heat transfer liquid box and the heat exchange liquid box are filled with cooling medium, and the surface of the heat exchange liquid box is provided with a plurality of fins.

[0014] The design of the cooling medium and fin combination enables the liquid cooling system to efficiently remove heat when running inside the device, maintain a low temperature inside the charger, and improve heat dissipation performance.

[0015] In a preferred example, the present invention can be further configured as follows: the circulating pump group includes a centrifugal barrel, a motor main shaft and a motor main shaft rotatably installed on the axis of the centrifugal barrel, and the surface of the motor main shaft is provided with a centrifugal turbine located on the inner side of the centrifugal barrel and a spiral blade located on the inner side of the lifting barrel.

[0016] By adopting a combination of centrifugal turbines and spiral blades, the cooling medium can be effectively lifted and centrifugally transported during the rotation of the motor spindle, ensuring efficient circulation of the medium in the liquid cooling system, thereby improving heat dissipation efficiency.

[0017] In a preferred example, the present invention can be further configured as follows: a temperature sensor is provided inside the thermal liquid box, and an output end of the temperature sensor is electrically connected to a power controller for controlling the operation of the circulation pump group and the Peltier refrigeration plate.

[0018] By setting up temperature sensors and power controllers, the internal temperature of the device can be monitored in real time, and the operating power of the cooling system can be intelligently adjusted to increase the heat dissipation capacity at high temperatures, ensuring stable operation of the device and avoiding overheating damage.

[0019] The beneficial effects achieved by the utility model are:

[0020] 1. In the present invention, a combined heat dissipation system of an internal circulation liquid cooling heat exchanger and a Peltier refrigeration plate is provided inside the charger, and liquid cooling and thermoelectric effects are utilized to achieve efficient heat dissipation, thereby ensuring the heat dissipation effect of the inverter charger in a closed environment, thereby improving the reliability and stability of the equipment. Furthermore, through the circulation and delivery system of the cooling medium, the flow of the coolant in the system is effectively accelerated, the heat exchange efficiency is improved, the generation of high-temperature areas is avoided, and the service life of the charger is further extended.

[0021] 2. In the utility model, by setting a temperature sensor and a power controller, the working status of the heat dissipation system can be monitored and adjusted in real time. When the temperature is too high, the working power of the circulation pump group and the Peltier refrigeration plate can be automatically adjusted, the heat dissipation effect can be intelligently controlled to prevent overheating, and the safety and energy saving of the charger can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0023] Figure 2 This is a schematic diagram of the internal structure of the charger housing according to one embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the surface structure of a circulating liquid cooling heat exchanger according to one embodiment of the present invention;

[0025] Figure 4 This is a schematic structural diagram of a circulating liquid cooling heat exchanger and a heat pipe radiator according to an embodiment of the present invention;

[0026] Figure 5 This is a schematic structural diagram of a circulating pump group according to an embodiment of the present invention.

[0027] Reference numerals:

[0028] 100. Charger housing; 110. Main control board; 200. Heat pipe radiator; 300. Circulating liquid cooling heat exchanger; 310. Thermal fluid box; 320. Heat exchange fluid box; 330. Circulating pump unit; 321. Fins; 331. Centrifugal cylinder; 332. Motor main shaft; 333. Lifting cylinder; 400. Peltier cooling plate. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the present invention more clear, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be noted that the embodiments of the present invention and the features therein can be combined with each other unless there is any conflict.

[0030] It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention.

[0031] The following is combined with Figure 1-Figure 5 Some embodiments of the present invention provide a closed automobile inverter charger with internal circulation heat dissipation.

[0032] In one embodiment of the present invention, a closed-type automotive inverter charger with internal circulation heat dissipation includes: a charger housing 100, a heat pipe radiator 200, a circulating liquid cooling heat exchanger 300, a Peltier cooling plate 400, and a main control board 110 fixed to the inside of the charger housing 100. The Peltier cooling plate 400 is fixedly adhered between the bottom end of the heat pipe radiator 200 and the top surface of the circulating liquid cooling heat exchanger 300, so that the top end of the heat pipe radiator 200 extends to the outside of the charger housing 100, forming a heat dissipation channel structure. The circulating liquid cooling heat exchanger 300 is fixedly mounted on the top surface of the main control board 110 and includes a heat transfer liquid box 310, a heat exchange liquid box 320, and a circulation pump assembly 330. The heat exchange liquid box 320 is fixed to the top surface of the heat transfer liquid box 310, and the internal cavities of the heat transfer liquid box 310 and the heat exchange liquid box 320 are interconnected to facilitate the circulation of coolant. The circulation pump assembly 330 is connected between the heat transfer liquid box 310 and the heat exchange liquid box 320 to realize the circulation of the coolant. The top surface of the heat exchange liquid box 320 and the bottom surface of the heat pipe radiator 200 are respectively attached to the cooling surface and heating surface of the Peltier cooling plate 400.

[0033] In this embodiment, the combination of the Peltier cooling fins 400, the heat pipe radiator 200, and the circulating liquid-cooled heat exchanger 300 forms a highly efficient heat dissipation system. Driven by a circulating pump assembly 330, the coolant circulates through the internal cavities of the thermal fluid cartridge 310 and the heat exchanger cartridge 320, transferring internal heat through the Peltier cooling fins 400 to the heat pipe radiator 200, and ultimately dissipating it to the external environment. This structure ensures effective heat dissipation in a closed charger environment, effectively improving the device's reliability and service life.

[0034] In this embodiment, a thermal grease layer is also provided between the circulating liquid cooling heat exchanger 300, the Peltier cooling sheet 400 and the heat pipe radiator 200 to enhance the heat conduction efficiency between the components, so that heat can be transferred to the external heat sink more quickly, thereby improving the overall heat dissipation performance.

[0035] In another embodiment, the internal circulation heat dissipation system of the present invention further improves the coolant flow path design. In this embodiment, multiple connecting holes are provided on the upper and lower surfaces of the circulating liquid cooling heat exchanger 300, allowing the coolant to form a more uniform flow path between the thermal transfer liquid box 310 and the heat exchange liquid box 320. The thermal transfer liquid box 310 and the heat exchange liquid box 320 adopt a coil-shaped cavity design, allowing the coolant to continuously circulate within the coil, extending the coolant flow path to fully remove heat.

[0036] Furthermore, the circulating pump assembly 330 comprises a centrifugal drum 331, a motor shaft 332, and a lifting drum 333. The motor shaft 332 is equipped with a centrifugal turbine and a spiral blade structure. As the motor shaft 332 rotates, the centrifugal turbine radially transports coolant into the coils of the heat exchange fluid box 320, causing the coolant to circulate from the heat transfer fluid box 310 to the heat exchange fluid box 320. This ensures uniform circulation of the coolant throughout the cooling system, further enhancing heat dissipation efficiency.

[0037] Additional Note: In this embodiment, to further enhance intelligent cooling, a temperature sensor is installed inside thermal fluid cartridge 310. This sensor monitors the charger's internal temperature in real time and transmits the temperature signal to the power controller. If the temperature becomes excessively high, the power controller automatically increases the operating power of circulation pump assembly 330 and Peltier cooling plate 400, accelerating coolant circulation and dissipating heat more rapidly, ensuring device safety.

[0038] In another specific embodiment, the surface design of the heat exchange fluid box 320 is further improved. Multiple fins 321 are added to the surface of the heat exchange fluid box 320 as a fin structure. These fin structures increase the surface area of ​​the heat exchange fluid box 320, thereby increasing the contact area between the coolant and the heat dissipation structure and improving heat exchange efficiency. As the coolant circulates, heat quickly diffuses through the fins 321 to the surface of the heat exchange fluid box 320, and then transfers to the heat pipe radiator 200 and Peltier cooling fins 400, achieving rapid heat dissipation.

[0039] In this embodiment, the cooling medium types in the heat transfer liquid box 310 and the heat exchange liquid box 320 can be adjusted according to actual heat dissipation requirements, and coolants with different cooling effects can be selected to adapt to different ambient temperature requirements.

[0040] Throughout this specification, terms such as "one embodiment," "some embodiments," or "specific embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, illustrative uses of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0041] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A closed automobile inverter charger with internal circulation heat dissipation, characterized in that: include: The charger housing (100), the heat pipe radiator (200), the circulating liquid cooling heat exchanger (300) and the Peltier cooling sheet (400) are fixed to the inner side of the charger housing (100) and the main control board (110), wherein the Peltier cooling sheet (400) is fixedly adhered between the bottom end of the heat pipe radiator (200) and the top surface of the circulating liquid cooling heat exchanger (300), and the top end of the heat pipe radiator (200) passes through the outer side of the top surface of the charger housing (100), the circulating liquid cooling heat exchanger (300) is fixedly installed on the top surface of the main control board (110), and the circulating liquid cooling heat exchanger (300) is fixedly attached to the inner side of the charger housing (100). The heat exchanger (300) comprises a heat transfer liquid box (310), a heat exchange liquid box (320) and a circulation pump group (330), wherein the heat exchange liquid box (320) is fixed to the top surface of the heat transfer liquid box (310), and the internal cavities of the heat transfer liquid box (310) and the heat exchange liquid box (320) are interconnected, and the circulation pump group (330) is used for circulating the internal liquid flow of the heat transfer liquid box (310) and the heat exchange liquid box (320), and the top surface of the heat exchange liquid box (320) and the bottom surface of the heat pipe radiator (200) are respectively in contact with the cooling surface and the heating surface of the Peltier refrigeration plate (400).

2. The closed-type automobile inverter charger with internal circulation heat dissipation according to claim 1, characterized in that: The upper and lower surfaces of the circulating liquid cooling heat exchanger (300) and the upper and lower surfaces of the Peltier cooling sheet (400) are provided with a thermal conductive silicone grease layer, which is used to improve the heat conductivity between the main control board (110) and the circulating liquid cooling heat exchanger (300), between the circulating liquid cooling heat exchanger (300) and the Peltier cooling sheet (400), and between the Peltier cooling sheet (400) and the heat pipe radiator (200).

3. The closed-type automobile inverter charger with internal circulation heat dissipation according to claim 1, characterized in that: The surfaces of the heat transfer liquid box (310) and the heat exchange liquid box (320) are provided with communication holes, and the communication holes and the circulation pump group (330) are respectively located at diagonal ends of the heat transfer liquid box (310).

4. The closed-type automobile inverter charger with internal circulation heat dissipation according to claim 1, characterized in that: The thermal liquid box (310) and the heat exchange liquid box (320) are both metal components, and the internal cavity of the thermal liquid box (310) is a coil-shaped cavity.

5. The closed-type automobile inverter charger with internal circulation heat dissipation according to claim 1, characterized in that: The heat transfer liquid box (310) and the heat exchange liquid box (320) are filled with cooling medium, and a plurality of fins (321) are provided on the surface of the heat exchange liquid box (320).

6. The closed-type automobile inverter charger with internal circulation heat dissipation according to claim 1, characterized in that: The circulating pump assembly (330) comprises a centrifugal cylinder (331), a motor main shaft (332), and the motor main shaft (332) rotatably mounted on the axis of the centrifugal cylinder (331). The surface of the motor main shaft (332) is provided with a centrifugal turbine located inside the centrifugal cylinder (331) and a spiral blade located inside the lifting cylinder (333).

7. The closed automobile inverter charger with internal circulation heat dissipation according to claim 1, characterized in that: A temperature sensor is provided inside the thermal liquid box (310), and an output end of the temperature sensor is electrically connected to a power controller for controlling the operation of the circulation pump group (330) and the Peltier refrigeration plate (400).

Images