Charging device

Abstract

The utility model discloses a kind of charging equipment, including shell, electrical element and with the interface of the electrical element electrical connection;The electrical element and the interface are located in shell, the shell is equipped with the hole for avoiding corresponding the interface, the hole for avoiding is communicated with the inside of the shell;The shell includes shell and the heat equalizing shell being located in the inside of the shell, the heat equalizing shell is located between the electrical element and the shell, the hole for avoiding is equipped with heat conducting member, the heat conducting member is respectively with the shell, the heat equalizing shell heat conduction connection.Through setting heat equalizing shell in shell interior, heat conducting member of heat conduction connection with heat equalizing shell is set in hole for avoiding, heat conducting member can be used to conduct heat of the region around hole for avoiding to heat equalizing shell, and spread on heat equalizing shell, reduce the temperature of the region around hole for avoiding, avoid because of the region around hole for avoiding temperature excessively high and influence charging efficiency, can also reduce security risk simultaneously, make product meet the requirement of safety regulation.

Description

Technical Field

[0001] This utility model relates to the field of electronic product technology, and in particular to a charging device. Background Technology

[0002] The electrical components inside the charger generate a lot of heat during operation, and this heat is conducted to the port connected to the data cable, causing the temperature at the port area of ​​the charger to be high. This affects the charging efficiency of the charger, and the excessively high local temperature poses a safety hazard, causing the product to fail to meet safety regulations. Utility Model Content

[0003] In view of this, the present invention provides a charging device to solve the above problems.

[0004] This application provides a charging device, including a housing, an electrical component located within the housing, and an interface electrically connected to the electrical component. The housing has a clearance hole corresponding to the interface. The housing includes an outer shell and a heat-spreading shell disposed inside the outer shell. The heat-spreading shell is located between the electrical component and the outer shell. The clearance hole penetrates the outer shell and the heat-spreading shell. A heat-conducting element is disposed within the clearance hole, and the heat-conducting element is thermally connected to the heat-spreading shell.

[0005] The charging device provided by this utility model has a heat-spreading shell inside the outer casing and a heat-conducting component connected to the heat-spreading shell in the clearance hole. The heat-conducting component can conduct heat from the area around the clearance hole of the outer casing to the heat-spreading shell and diffuse it on the heat-spreading shell, thereby reducing the temperature of the area around the clearance hole. This avoids affecting the charging efficiency due to excessive temperature in the area around the clearance hole, and also reduces safety hazards, making the product meet safety requirements. Attached Figure Description

[0006] Figure 1 This is a schematic diagram of the structure of a charging device provided in an embodiment of the present invention; Figure 2 for Figure 1 An exploded view of the charging device shown; Figure 3 for Figure 2 An exploded view of the charging device shown from another perspective; Figure 4 for Figure 1 A cross-sectional view of the charging device shown; Figure 5 for Figure 2 An exploded view of the heat-conducting components and interfaces shown in the diagram; Figure 6 This is a schematic diagram of the structure of a charging device provided in another embodiment of the present invention; Figure 7for Figure 6 A cross-sectional view of the charging device shown; Figure 8 for Figure 6 The diagram shows the structure of the heat spreader and heat conductor of the charging device.

[0007] In the diagram: 100, charging device; 10, housing; 12, electrical component; 14, interface; 16, clearance hole; 18, outer shell; 20, heat dissipation shell; 22, heat conduction component; 24, inner shell; 26, perforation; 28, insertion space; 30, heat dissipation part; 31, accommodating space; 32, heat dissipation end cap. Detailed Implementation

[0008] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0009] It should be noted that all directional indicators (such as up, down, left, right, front, back, inside, outside, top, bottom, etc.) in the embodiments of this utility model are only used to explain the relative positional relationship between the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0010] It should also be noted that when a component is referred to as "fixed to" or "set on" another component, the component may be directly on the other component or there may be an intervening component present. When a component is referred to as "connected to" another component, it may be directly connected to the other component or there may be an intervening component present.

[0011] Please see Figures 1 to 5 This utility model provides a charging device 100, including a housing 10, an electrical component 12 located within the housing 10, and an interface 14 electrically connected to the electrical component 12, the interface 14 also being located within the housing 10. The housing 10 has a clearance hole 16 corresponding to the interface 14, allowing the plug of a data cable to pass through the clearance hole 16 and be inserted into the interface 14, thus forming an electrical connection between the data cable and the charging device 100 to charge electronic products.

[0012] The housing 10 has an internal accommodating space 31. The housing 10 includes an outer shell 18 and a heat spreader 20. Electrical components 12 are located within the accommodating space 31. The heat spreader 12 is positioned close to the accommodating space 31, while the outer shell 18 is exposed to the outside. The heat spreader 20 is located between the electrical components 12 and the outer shell 18. The heat spreader 20 has good thermal conductivity. A clearance hole 16 communicates with the accommodating space 31, allowing the data cable plug to pass through the clearance hole 16 and connect to the interface 14. A heat-conducting element 22 is provided within the clearance hole 16, and the heat-conducting element 22 is thermally connected to both the heat spreader 20 and the outer shell 18. Thermal conductivity connection means that the heat-conducting element 22 and the heat spreader 20 are interconnected, and heat can be conducted from the higher-temperature component to the lower-temperature component. The two components in the thermal conductivity connection can be directly connected or indirectly connected, for example, by placing a thermally conductive medium between them. This thermally conductive medium can be thermally conductive adhesive, thermally conductive metal, graphite, thermally conductive plastic, etc. When the interface 14 of the charging device 100 is connected to the plug of the data cable to charge the electronic product, the interface 14 generates heat. Since the interface 14 is close to the clearance hole 16, the temperature of the area surrounding the clearance hole 16 is relatively high. The heat-conducting element 22 is located inside the clearance hole 16, so some of the heat on the outer casing 18 corresponding to the area around the clearance hole 16 can be conducted to the heat-spreading shell 20 by the heat-conducting element 22 and diffused on the heat-spreading shell 20. Transferring some of the heat from the area around the clearance hole 16 to the heat-spreading shell 20 can reduce the temperature of the area around the clearance hole 16, creating a uniform heating effect. This prevents the charging efficiency from being affected by excessively high temperatures around the clearance hole 16, and also reduces safety hazards, ensuring the product meets safety regulations.

[0013] Optionally, the shape of the heat spreader 20 is adapted to the shape of the outer shell 18. The outer shell 18 covers the outside of the heat spreader 20, and the electrical component 12 is located inside the heat spreader 20. The clearance hole 16 penetrates through the outer shell 18 and the heat spreader 20. Adapting the shape of the heat spreader 20 to the shape of the outer shell 18 increases the area of ​​the heat spreader 20. When the heat conducted from the heat conductor 22 diffuses on the heat spreader 20, the amount of heat accumulated per unit area on the heat spreader 20 can be reduced, thus improving the heat dissipation effect. For example, the outer shell 18 includes an end plate and an annular wall surrounding the outer periphery of the end plate. The annular wall and the end plate enclose a receiving space. The clearance hole 16 penetrates through the end plate. The shape of the outer shell 18 is the same as the shape of the heat spreader 18, and the size of the heat spreader 20 is smaller than the size of the outer shell 18, so that the heat spreader 20 can be installed inside the outer shell 18.

[0014] In other embodiments, the shape of the heat spreader 20 may also be different from that of the outer shell 18. For example, when the outer shell 18 includes an end plate and an annular wall, the heat spreader 20 may be a heat spreader plate that is attached to the end plate of the outer shell 18. Alternatively, the heat spreader 20 may also be L-shaped, with part of it attached to the end plate of the outer shell 18 and part of it attached to the annular wall, as long as it can form a thermal conduction connection with the heat conductor 22.

[0015] In this application, the housing 10 also includes an inner housing 24. The outer housing 18, the heat-spreading housing 20, and the inner housing 24 have the same shape and their dimensions decrease sequentially. The outer housing 18 covers the outside of the heat-spreading housing 20, and the heat-spreading housing 20 covers the outside of the inner housing 24, forming the effect of sandwiching the heat-spreading housing 20 between the inner housing 24 and the outer housing 18. The thermal conductivity of the heat-spreading housing 20 is greater than that of the outer housing 18 and the inner housing 24. The clearance hole 16 passes through the outer housing 18, the heat-spreading housing 20, and the inner housing 24 in sequence. The electrical component 12 is located inside the inner housing 24, and the interface 14 is partially inserted into the clearance hole 16 on the inner housing 24.

[0016] The heat spreader 20 is made of metal, such as aluminum alloy or copper alloy, to ensure good thermal conductivity. The heat spreader 20 is sandwiched between the inner shell 24 and the outer shell 18, preventing safety hazards caused by contact between the heat spreader 20 and the electrical components 12. The outer shell 18, heat spreader 20, and inner shell 24 have essentially the same shape. The heat spreader 20 covers the outside of the inner shell 24, and the outer shell 18 covers the outside of the heat spreader 20. The thickness of the heat spreader 20 is less than the thickness of the outer shell 18 and the inner shell 24, reducing the impact of the heat spreader 20 on the overall weight of the charging device 100. For example, the heat spreader 20 is made of aluminum alloy, which has good heat spreader properties. After heat is conducted to the aluminum alloy, it can quickly diffuse on the aluminum alloy, improving the heat spreader effect.

[0017] In other embodiments, the heat spreader 20 can also be made of other materials, such as superconducting plastic parts, thermally conductive adhesives, etc. Superconducting plastic parts are plastic parts with high thermal conductivity; they are essentially polymer-based thermally conductive composite materials. By filling the plastic with a large amount of thermally conductive additives such as boron nitride, aluminum nitride, alumina, and carbon, a through-type thermally conductive network is constructed, thereby achieving a leap in thermal conductivity, making its thermal conductivity much greater than that of ordinary plastic parts such as PC parts. When the heat spreader 20 is made of a non-metallic material, there is no need to set an inner shell 24, and the heat spreader 20 can be connected to the electrical component 12.

[0018] In one embodiment, the heat-conducting element 22 is disposed on the side wall of the housing 18 corresponding to the clearance hole 16, and the end of the heat-conducting element 22 near the interface 14 is connected to the interface 14. For example, the interface 14 extends from the electrical component 12 toward the heat-conducting element 22, and the end of the interface 14 away from the electrical component 12 is thermally connected to the heat-conducting element 22. That is, the heat-conducting element 22 is thermally connected to the interface 14, the heat spreader 20, and the housing 18. This not only allows the heat in the area around the clearance hole 16 to be conducted to the heat spreader 20 through the heat-conducting element 22, but also allows the heat on the interface 14 to be conducted to the heat spreader 20 through the heat-conducting element 22, thereby reducing the temperature of the area around the clearance hole 16 on the housing 18 and the interface 14.

[0019] Understandably, the specific manner in which the heat-conducting component 22 forms a thermally conductive connection with the interface 14 and the heat-spreading shell 20 is not limited. For example, the heat-conducting component 22 can directly contact the interface 14 and the heat-spreading shell 20 to form a thermally conductive connection through direct contact. Alternatively, an intermediate element that can be used for heat conduction can be provided between the heat-conducting component 22 and the interface 14 and the heat-spreading shell 20 to indirectly form a thermally conductive connection through the intermediate element. Exemplarily, the heat-conducting component 22 is in direct contact with both the interface 14 and the heat-spreading shell 20 to reduce the heat transfer path, allowing the heat on the interface 14 and the heat-conducting component 22 to be conducted to the heat-spreading shell 20 more quickly.

[0020] The heat-conducting component 22 is frame-shaped, with a through-hole 26 formed on its inner side. A insertion space 28 is formed on the inner side of the interface 14. The through-hole 26 and the insertion space 28 are connected, allowing the data cable plug to pass through the through-hole 26 and be inserted into the insertion space 28 of the interface 14. By making the heat-conducting component 22 annular, the contact area between the heat-conducting component 22 and the interface 14 can be increased without affecting the connection between the interface 14 and the plug, thereby improving the heat conduction efficiency between them.

[0021] The inner wall of the perforation 26 is recessed to form a stepped structure. This stepped structure is located at the end of the heat-conducting element 22 near the interface 14. One end of the interface 14 is inserted into the stepped structure, causing one end of the heat-conducting element 22 to surround the outer periphery of the interface 14, thus creating a heat conduction connection. The interface 14 has a flat structure with a large circumferential sidewall area, allowing the heat-conducting element 22 to surround its outer periphery, thereby increasing the contact area between the interface 14 and the heat-conducting element 22 and improving the heat transfer effect between them. For example, the interface 14 and the heat-conducting element 22 are bonded together to form a heat conduction connection; that is, the inner wall of the stepped structure is bonded to the circumferential sidewall of the interface 14, which shortens the heat transfer path between the interface 14 and the heat-conducting element 22, thereby enhancing the heat transfer effect.

[0022] The outline shape of the clearance hole 16 is adapted to the outline shape of the heat conductor 22. The heat conductor 22 is at least partially located inside the clearance hole 16 and fits against the inner wall of the clearance hole 16, increasing the contact area between the heat conductor 22 and the housing 10 so that the heat of the housing 10 in the area around the clearance hole 16 can be conducted to the heat spreader 20 through the heat conductor 22.

[0023] The heat-conducting element 22 has a top end near the outer casing 18 and a bottom end near the interface 14; the bottom end of the heat-conducting element 22 is connected to the top end of the interface 14; or, the bottom end of the heat-conducting element 22 is sleeved on the circumferential outer side of the interface 14. Specifically, the bottom end of the heat-conducting element 22 is connected to the top end of the interface 14 so that the inner wall of the perforation 26 is flush with the inner wall of the insertion space 28, thereby making the size of the perforation 26 the same as the size of the insertion space 28. When the data cable plug is inserted into the insertion space 28 of the interface 14, the plug will fit against the inner wall of the insertion space 28, and since the inner wall of the perforation 26 is flush with the inner wall of the insertion space 28, the plug will also fit against the inner wall of the perforation 26, forming a heat conduction connection effect, so that the heat on the interface 14 and the plug can be conducted to the heat-spreading shell 20 through the heat-conducting element 22, reducing the temperature of the interface 14 and the plug, and preventing the charging effect from being affected by the high temperature of the interface 14 and the plug. In another embodiment, the interface 14 is disposed within the perforation 26 so that the bottom end of the heat-conducting element 22 is sleeved on the circumferential outer side of the interface 14, making the connection between the heat-conducting element 22 and the interface 14 more stable, the contact area larger, and the heat conduction effect better.

[0024] In one embodiment, the heat-conducting element 22 is an insulating element, such as a superconducting plastic element or thermally conductive adhesive. The end of the heat-conducting element 22 furthest from the interface 14 passes through the clearance hole 16 and is exposed on the outer surface of the housing 18, improving the heat exchange efficiency between the heat-conducting element 22 and the external air. Specifically, the top of the heat-conducting element 22 is exposed to the external air, allowing it to contact the outside air. Since the heat-conducting element 22 is an insulating element, it has insulating properties, so there is no concern about safety hazards due to its connection with the interface 14. Furthermore, the heat-conducting element 22 is exposed on the housing 18, allowing it to not only conduct heat to the heat spreader 20 but also dissipate some heat into the surrounding air, thus possessing both good heat conduction and heat dissipation effects. For example, the heat-conducting element 22 is a superconducting plastic element.

[0025] The heat-conducting element 22 is exposed at one end of the housing 10. It may protrude from the outer surface of the outer shell 18 or be flush with the outer surface of the outer shell 18. For example, the end of the heat-conducting element 22 exposed at the housing 10 is flush with the outer surface of the outer shell 18 to reduce the abruptness of the heat-conducting element 22.

[0026] The heat-conducting component 22 has a recessed heat dissipation portion 30, which is located at the end of the heat-conducting component 22 away from the interface 14. Specifically, the heat dissipation portion 30 is provided at the end exposed outside the outer casing 18. The heat dissipation portion 30 is connected to the outside of the casing 10, so the inner wall of the heat dissipation portion 30 can contact the outside air, thereby increasing the contact area between the heat-conducting component 22 and the air, and thus improving the heat dissipation effect of the heat-conducting component 22.

[0027] Understandably, the heat dissipation part 30 can be a heat dissipation hole provided on the heat conduction component 22, or it can be a groove provided on the heat conduction component 22.

[0028] Optionally, the heat dissipation part 30 is disposed on the side wall of the heat-conducting element 22 corresponding to the perforation 26, surrounding the circumference of the perforation 26. The heat-conducting element 22 is frame-shaped, and the heat dissipation part 30 has the same shape as the frame, surrounding the outer periphery of the perforation 26. There are multiple heat dissipation parts 30, which are arranged along the axial direction of the perforation 26 to further increase the contact area between the heat-conducting element 22 and the external air.

[0029] In one embodiment, the housing 10 has an accommodating space 31 inside the inner housing 24, and the housing 10 has a mounting opening 33 communicating with the accommodating space 31. A heat spreader 20 is located on the side of the inner housing 24 away from the accommodating space 31. The housing 10 also includes a heat dissipation end cap 32, which is installed at the mounting opening 33 of the outer housing 18. The heat spreader 20 and the heat dissipation end cap 32 are thermally connected. The mounting opening 33 is located at the end of the outer housing 18 away from the clearance hole 16. After the heat from the area surrounding the interface 14 and the clearance hole 16 is conducted to the heat spreader 20 through the heat conductor 22, the heat can be conducted from the heat spreader 20 to the heat dissipation end cap 32. The heat dissipation end cap 32 is at least partially exposed outside the outer housing 18, thus allowing it to contact the outside air and dissipate heat into the surrounding air, creating a heat dissipation effect and reducing the overall temperature of the charging device 100. For example, both the housing 18 and the heat spreader 20 include an end plate and an annular wall surrounding the outer periphery of the end plate. The end plate of the housing 18 and the annular wall form an accommodating space 31. The mounting port 33 is located on the side of the annular wall away from the end plate. The annular wall of the heat spreader 20 extends from the end plate toward the heat dissipation end cover 32 and is thermally connected to the heat dissipation end cover 32.

[0030] Optionally, the heat dissipation end cap 32 is made of superconducting plastic, which provides both good heat dissipation and insulation.

[0031] The outer side of the electrical component 12 is provided with thermally conductive adhesive, which is thermally connected to the thermally conductive component 22. The thermally conductive adhesive not only protects the electrical component 12, but also conducts the heat on the electrical component 12 to the thermally conductive component 22, and then conducts it to the heat spreader 20 through the thermally conductive component 22, thereby reducing the temperature of the electrical component 12.

[0032] Please see Figures 6 to 8 Another embodiment of the present invention provides a charging device 100, which differs from the charging device 100 in the above embodiments in that: The heat-conducting component 22 is made of metal, which gives it good heat conduction performance. The end of the clearance hole 16 away from the interface 14 forms an opening, and the end of the heat-conducting component 22 away from the interface 14 is located between the opening and the interface 14. That is, the heat-conducting component 22 is not exposed outside the housing 18, thus avoiding the safety hazard caused by the heat-conducting component 22 being exposed outside the housing 18.

[0033] The heat spreader 20 is made of metal, and the heat-conducting component 22 is integrally formed with the heat spreader 20, thereby fixing the heat-conducting component 22 and the heat spreader 20 together to form a heat conduction connection. Moreover, the integral forming method can avoid the existence of connection gaps between the heat-conducting component 22 and the heat spreader 20, which would affect the heat conduction effect. For example, both the heat spreader 20 and the heat-conducting component 22 are made of aluminum alloy to improve the heat spread effect.

[0034] One end of the heat-conducting component 22 is connected to the heat-spreading shell 20, and the other end extends towards the interface 14. The heat-conducting component 22 is located outside the interface 14, meaning that the interface 14 is not inserted into the heat-conducting component 22. The end of the heat-conducting component 22 away from the heat-spreading shell 20 is thermally connected to one end of the interface 14. For example, the heat-conducting component 22 and the interface 14 extend towards each other, and their opposing ends abut together, so that the opposing ends of the heat-conducting component 22 and the interface 14 are fitted together to form a thermally conductive connection, thereby reducing the heat transfer path between the heat-conducting component 22 and the interface 14 and improving the heat conduction efficiency between the interface 14 and the heat-conducting component 22.

[0035] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A charging device, characterized in that, It includes a housing, electrical components, and an interface electrically connected to the electrical components; the electrical components and the interface are located inside the housing, and the housing has a clearance hole corresponding to the interface, the clearance hole communicating with the interior of the housing; The housing includes an outer shell and a heat-spreading shell disposed inside the outer shell. The heat-spreading shell is located between the electrical component and the outer shell. A heat-conducting element is provided in the clearance hole, and the heat-conducting element is thermally connected to the outer shell and the heat-spreading shell respectively.

2. The charging device according to claim 1, characterized in that, The heat-conducting component is disposed on the side wall of the housing corresponding to the clearance hole, and the end of the heat-conducting component near the interface is connected to the interface.

3. The charging device according to claim 2, characterized in that, The heat-conducting component is frame-shaped, and a through hole is formed on the inner side of the heat-conducting component. A plug-in space is formed on the inner side of the interface, and the through hole is connected to the plug-in space.

4. The charging device according to claim 3, characterized in that, The heat-conducting element has a top end near the housing and a bottom end near the interface; the bottom end is connected to the top of the interface, or the bottom end is sleeved on the circumferential outer side of the interface.

5. The charging device according to claim 1, characterized in that, The heat-conducting component is a metal component, and the end of the clearance hole away from the interface forms an opening, with the end of the heat-conducting component away from the interface located between the opening and the interface; and / or Both the heat-conducting component and the heat-spreading shell are metal parts, and the heat-conducting component and the heat-spreading shell are integrally formed.

6. The charging device according to claim 1, characterized in that, The heat-conducting component is an insulating component, and the end of the heat-conducting component away from the interface passes through the clearance hole and is exposed on the outer surface of the housing.

7. The charging device according to claim 6, characterized in that, The heat-conducting component has a recessed heat dissipation portion, which is located at the end of the heat-conducting component away from the interface.

8. The charging device according to claim 7, characterized in that, The heat-conducting component is frame-shaped with perforations on its inner side; the heat dissipation part is disposed on the side wall of the heat-conducting component corresponding to the perforations, surrounding the circumference of the perforations.

9. The charging device according to any one of claims 1-8, characterized in that, The housing also includes an inner shell, which is located on the side of the heat exchanger shell closer to the electrical component. The heat exchanger shell is sandwiched between the outer shell and the inner shell. The inner shell and the heat exchanger shell are shaped to match the outer shell. The clearance hole penetrates the inner shell, the heat exchanger shell, and the outer shell.

10. The charging device according to claim 9, characterized in that, The outer casing has an accommodating space and a mounting port communicating with the accommodating space; the outer casing also includes a heat dissipation end cap mounted on the mounting port; the heat dissipation housing is thermally connected to the heat dissipation end cap; and / or, The electrical component is provided with thermally conductive adhesive on its outer side, and the thermally conductive adhesive is thermally connected to the thermally conductive component.

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