Vehicle-filled plastic shell convenient for heat dissipation

Abstract

The utility model discloses a vehicle charger plastic shell convenient for heat dissipation, and belongs to the technical field of vehicle-mounted chargers. Comprising a plastic shell and a heat dissipation mechanism, the plastic shell comprises a first shell body and a second shell body, the first shell body is connected with the second shell body, a first cavity is formed in the first shell body, a second cavity is formed in the second shell body, and the first cavity is communicated with the second cavity; the heat dissipation mechanism comprises a first metal cover and a second metal cover which are installed in the first cavity, a third metal cover installed in the second cavity and a fourth metal cover located outside the second shell, the second metal cover is located above the first metal cover, and the third metal cover is installed at the top of the second metal cover; heat conduction pieces are arranged on the outer side of the first metal cover, on the bottom face of the second metal cover and between the third metal cover and the fourth metal cover and used for transmitting heat.

Description

Technical Field

[0001] This utility model relates to the field of vehicle charger technology, specifically a plastic shell for a vehicle charger that facilitates heat dissipation. Background Technology

[0002] In today's digital age, cars have become an indispensable means of transportation, and the use of in-car electronic devices is increasingly widespread. As a key component for charging various electronic devices, the performance and safety of car chargers are of paramount importance. The plastic casing of the car charger, as a crucial part of the charger, has a vital impact on its overall performance, especially in terms of heat dissipation.

[0003] Currently available car charger plastic housings mostly focus on appearance and basic protection, with little consideration for heat dissipation design. Common car charger plastic housings have simple structures, lacking dedicated heat dissipation channels or structures. Even those housings with ventilation holes are often poorly designed in terms of quantity and layout, failing to create effective heat dissipation paths. These ventilation holes may become clogged by dust and debris during vehicle operation, further reducing heat dissipation efficiency. Moreover, traditional car charger plastic housings have low thermal conductivity between themselves and internal heat-generating components, failing to transfer heat to the housing surface for dissipation in a timely manner. Utility Model Content

[0004] The purpose of this invention is to provide a car charger plastic shell that facilitates heat dissipation, so as to solve the problems mentioned in the background art.

[0005] In view of the above problems, the technical solution proposed by this utility model is as follows:

[0006] A car charger plastic housing for easy heat dissipation includes a plastic housing and a heat dissipation mechanism.

[0007] Furthermore, the plastic outer shell includes a first shell and a second shell, and the first shell and the second shell are connected. The first shell has a first cavity inside, and the second shell has a second cavity inside. The first cavity and the second cavity are connected. Power supply components such as batteries, charging management modules, and circuit boards are installed inside the first metal cover, providing reasonable installation space for the internal components of the car charger. The connected first cavity and the second cavity help the conduction and diffusion of heat within the shell, avoiding local heat accumulation.

[0008] Furthermore, the heat dissipation mechanism includes a first metal cover and a second metal cover installed in the first cavity, a third metal cover installed in the second cavity, and a fourth metal cover located outside the second housing. The second metal cover is located above the first metal cover, and the third metal cover is installed on top of the second metal cover. Heat-conducting elements are provided on the outer side of the first metal cover, the bottom surface of the second metal cover, and between the third and fourth metal covers. The heat-conducting elements are used to transfer heat. The metal covers have good thermal conductivity and can quickly absorb the heat generated by the power supply components and transfer the heat out through the heat-conducting elements, forming an effective heat dissipation path.

[0009] Furthermore, the heat-conducting component includes a first heat-conducting copper tube wound around the outside of the first metal cover and a second heat-conducting copper tube installed on the bottom surface of the second metal cover. The first and second heat-conducting copper tubes are connected. Both the first and second heat-conducting copper tubes are spiral-shaped, and the spiral height of the first heat-conducting copper tube is less than the height of the first metal cover. The spiral height of the second heat-conducting copper tube is zero. The spiral shape of the heat-conducting copper tube increases the contact area with air, improving heat dissipation efficiency. The shorter spiral height of the first heat-conducting copper tube ensures effective heat conduction to the first metal cover without affecting the installation of components inside the first metal cover. The zero spiral height of the second heat-conducting copper tube fits the bottom surface of the second metal cover, enabling more efficient heat conduction. The interior of the heat-conducting copper tube is filled with a liquid absorber and coolant. The liquid absorber and coolant inside use the phase change heat transfer principle. When absorbing heat, the coolant vaporizes and rises, and condenses and flows back at a lower temperature. This cycle repeats continuously, achieving efficient heat transfer.

[0010] Furthermore, the heat-conducting component also includes several heat dissipation fins. Several slots are evenly distributed on the side of the second housing. The heat dissipation fins are installed in the slots. The two ends of the heat dissipation fins are respectively connected to the third metal cover and the fourth metal cover. The heat dissipation fins further increase the heat dissipation area and utilize the natural convection of air to quickly dissipate heat to the surrounding environment, thereby enhancing the heat dissipation effect.

[0011] Furthermore, the first metal cover, the second metal cover, the third metal cover, and the fourth metal cover are all hollow, and the hollow shape is used for the installation of power supply components.

[0012] Furthermore, a pair of USB mounting slots are provided on the top surface of the first housing. The USB mounting slots are used to install USB interfaces, making it convenient for users to connect electronic devices for charging.

[0013] Furthermore, a power connector is installed on the bottom surface of the second housing. The power connector is used to connect to the vehicle's cigarette lighter socket or other power interface to provide power to the car charger.

[0014] Compared with the prior art, the beneficial effects of this utility model are: the car charger plastic shell that facilitates heat dissipation forms an efficient heat dissipation path by setting up multiple layers of metal covers and heat-conducting components, which can quickly conduct the heat generated inside the car charger to the surface of the shell; the design of the heat dissipation fins further increases the heat dissipation area, enhances the heat dissipation effect, effectively reduces the temperature inside the car charger, reduces the impact of high temperature on the performance and life of electronic components, and improves the stability and reliability of the car charger. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the heat-dissipating plastic shell for a car charger disclosed in an embodiment of the present utility model;

[0016] Figure 2 This is an exploded structural diagram of the heat-dissipating plastic shell of the car charger disclosed in an embodiment of the present utility model.

[0017] Figure 3 This is a first cross-sectional structural diagram of the heat-dissipating plastic shell of the car charger disclosed in an embodiment of the present utility model.

[0018] Figure 4 This is a second cross-sectional structural diagram of the heat-dissipating plastic shell of the car charger disclosed in an embodiment of the present invention.

[0019] In the diagram: 100, plastic outer shell; 1001, first shell; 1002, second shell; 1003, USB mounting slot; 1004, power plug; 1005, slot; 1006, first cavity; 1007, second cavity; 200, heat dissipation mechanism; 2001, first metal cover; 2002, first heat-conducting copper pipe; 2003, second heat-conducting copper pipe; 2004, second metal cover; 2005, third metal cover; 2006, fourth metal cover; 2007, heat dissipation fins. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1 - Figure 4 This utility model provides a technical solution: a car charger plastic shell that facilitates heat dissipation, including a plastic shell 100 and a heat dissipation mechanism 200.

[0022] As an embodiment of the present invention, the plastic shell 100 further includes a first shell 1001 and a second shell 1002, and the first shell 1001 and the second shell 1002 are connected. The first shell 1001 has a first cavity 1006 inside, and the second shell 1002 has a second cavity 1007 inside. The first cavity 1006 and the second cavity 1007 are connected. Power supply components such as batteries, charging management modules, and circuit boards are installed inside the first metal cover 2001, providing reasonable installation space for the internal components of the car charger. Furthermore, the connected first cavity 1006 and the second cavity 1007 facilitate the conduction and diffusion of heat within the shell, avoiding local heat accumulation.

[0023] As an embodiment of the present invention, the heat dissipation mechanism 200 further includes a first metal cover 2001 and a second metal cover 2004 installed in the first cavity 1006, a third metal cover 2005 installed in the second cavity 1007, and a fourth metal cover 2006 located outside the second housing 1002. The second metal cover 2004 is located above the first metal cover 2001, and the third metal cover 2005 is installed on top of the second metal cover 2004. Heat-conducting elements are provided on the outer side of the first metal cover 2001, the bottom surface of the second metal cover 2004, and between the third metal cover 2005 and the fourth metal cover 2006. The heat-conducting elements are used to transfer heat. The metal covers have good thermal conductivity and can quickly absorb the heat generated by the power supply components and transfer the heat out through the heat-conducting elements, forming an effective heat dissipation path.

[0024] In one embodiment of the present invention, the heat-conducting component further includes a first heat-conducting copper tube 2002 wound around the outside of the first metal cover 2001 and a second heat-conducting copper tube 2003 installed on the bottom surface of the second metal cover 2004. The first heat-conducting copper tube 2002 and the second heat-conducting copper tube 2003 are connected. Both the first heat-conducting copper tube 2002 and the second heat-conducting copper tube 2003 are spiral-shaped, and the spiral height of the first heat-conducting copper tube 2002 is less than the height of the first metal cover 2001, while the spiral height of the second heat-conducting copper tube 2003 is zero. The spiral shape of the heat-conducting copper tube increases the contact surface with air. The design of the first heat-conducting copper tube 2002, with its shorter spiral height, improves heat dissipation efficiency. This design ensures effective heat conduction to the first metal cover 2001 without affecting the installation of components inside the first metal cover 2001. The second heat-conducting copper tube 2003 has a zero spiral height and fits snugly against the bottom surface of the second metal cover 2004, enabling more efficient heat conduction. The interior of the heat-conducting copper tube is filled with a liquid wick and coolant. Through the principle of phase change heat transfer, the coolant vaporizes and rises when absorbing heat, and condenses and flows back at a lower temperature. This cycle repeats continuously, achieving efficient heat transfer.

[0025] As an embodiment of the present invention, the heat-conducting component further includes a plurality of heat dissipation fins 2007. A plurality of slots 1005 are evenly distributed circumferentially on the side surface of the second housing 1002. The heat dissipation fins 2007 are installed in the slots 1005. The two ends of the heat dissipation fins 2007 are respectively connected to the third metal cover 2005 and the fourth metal cover 2006. The heat dissipation fins 2007 further increase the heat dissipation area and utilize the natural convection of air to quickly dissipate heat to the surrounding environment, thereby enhancing the heat dissipation effect.

[0026] As an embodiment of the present invention, the first metal cover 2001, the second metal cover 2004, the third metal cover 2005, and the fourth metal cover 2006 are all hollow, and the hollow shape is used for the installation of power supply components.

[0027] As an embodiment of the present invention, the top surface of the first housing 1001 is provided with a pair of USB mounting slots 1003, which are used to install USB interfaces to facilitate users to connect electronic devices for charging.

[0028] As an embodiment of the present invention, a power connector 1004 is further installed on the bottom surface of the second housing 1002. The power connector 1004 is used to connect to the vehicle's cigarette lighter interface or other power interface to provide power to the car charger.

[0029] Specifically, the working principle of this heat-dissipating car charger plastic shell is as follows: During use, the battery, charging management module, circuit board, and other power supply components are sequentially placed inside the first metal cover 2001. Since the first metal cover 2001 is hollow and its size and structure are designed according to the charging components, it can well accommodate these components. A USB interface is installed in the USB mounting slot 1003, and the USB interface, charging components, power connector 1004, and other components are connected together by wires. The power connector 1004 is then connected to the vehicle's cigarette lighter socket or other power interface. When the car charger is connected to the vehicle's power supply and charges the electronic devices, the battery, charging management module, circuit board, and other power supply components installed inside the first metal cover 2001 begin to work. These components continuously generate heat during operation. Since the first metal cover 2001 is made of a material with good thermal conductivity, heat will be quickly conducted from the power supply component to the first metal cover 2001. At this time, the first heat-conducting copper pipe 2002 and the second heat-conducting copper pipe 2003 begin to play their role. They are closely attached to the first metal cover 2001 and absorb the heat on the metal cover. Based on the principle of phase change heat transfer, the coolant vaporizes and rises when absorbing heat, and condenses and flows back at a lower temperature. This cycle repeats, efficiently transferring heat to the second metal cover 2004. The heat continues to be transferred upward through the second metal cover 2004 to the third metal cover 2005 installed on top of it. Finally, the heat is transferred to the fourth metal cover 2006 through the heat dissipation fins 2007, and the heat exchange is completed under the action of the external air.

Claims

1. A plastic casing of a car charger facilitating heat dissipation, characterized in that, The utility model relates to a plastic shell (100) and heat dissipation mechanism (200), the plastic shell (100) includes first shell (1001), second shell (1002), and first shell (1001) and second shell (1002) are connected, the inside of first shell (1001) is seted up with first cavity (1006), the inside of second shell (1002) is seted up with second cavity (1007), and first cavity (1006) and second cavity (1007) are communicated. The heat dissipation mechanism (200) includes first metal cover (2001) installed in first cavity (1006), second metal cover (2004), third metal cover (2005) installed in second cavity (1007), fourth metal cover (2006) located in the outside of second shell (1002), second metal cover (2004) is located above first metal cover (2001), third metal cover (2005) is installed on the top of second metal cover (2004), and the outside of first metal cover (2001), the bottom surface of second metal cover (2004), third metal cover (2005) and fourth metal cover (2006) are all equipped with heat conduction piece, and the heat conduction piece is used for transmitting heat. The heat conduction piece includes first heat conduction copper pipe (2002) wound on the outside of first metal cover (2001), second heat conduction copper pipe (2003) installed on the bottom surface of second metal cover (2004), and first heat conduction copper pipe (2002) and second heat conduction copper pipe (2003) are communicated.

2. The plastic casing of the car charger facilitating heat dissipation according to claim 1, wherein, First heat conduction copper pipe (2002) and second heat conduction copper pipe (2003) are all spiral, and the spiral height of first heat conduction copper pipe (2002) is less than the height of first metal cover (2001), and the spiral height of second heat conduction copper pipe (2003) is zero.

3. The plastic casing of the car charger facilitating heat dissipation according to claim 2, characterized in that, The heat conduction piece further includes a plurality of heat dissipation fins (2007), a plurality of slot (1005) are uniformly distributed on the side surface of second shell (1002) circumferentially, the heat dissipation fin (2007) is installed in the slot (1005), and the both ends of heat dissipation fin (2007) are connected with third metal cover (2005) and fourth metal cover (2006) respectively.

4. The plastic casing of the car charger facilitating heat dissipation according to claim 1, wherein, First metal cover (2001), second metal cover (2004), third metal cover (2005) and fourth metal cover (2006) are all hollow.

5. The plastic casing of the car charger facilitating heat dissipation according to claim 1, wherein, A pair of USB installation slot (1003) are seted up on the top surface of first shell (1001).

6. The plastic casing of the car charger facilitating heat dissipation according to claim 1, wherein, The bottom surface of second shell (1002) is installed with electricity plug (1004).

7. The plastic casing of the car charger facilitating heat dissipation according to claim 1, wherein, ​

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