charging head

Abstract

The utility model provides a kind of charging head, the charging head includes shell, electronic component and heat dissipation structure;The electronic component and the heat dissipation structure are all installed in the shell;The heat dissipation structure includes sponge and graphite sheet, one surface of the graphite sheet is connected with the shell wall of the shell, another surface of the graphite sheet is equipped with the sponge, and the sponge is covered on the electronic component.In the utility model, by forming a whole with the sponge and graphite sheet of heat dissipation structure, simple structure, occupy smaller space;Heat dissipation structure is installed between the shell wall of shell and electronic component, can improve the heat dissipation effect of charging head, can also solve the noise problem caused by compact space and the liquid leakage problem under the extreme working condition of electronic component, with strong popularization value and application value.

Description

Technical Field

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

[0002] In traditional technologies, to improve charging efficiency, the output power of charging heads (such as fast charging power supplies) has been increased, but this has also led to increased heat generation. Existing charging head designs have flaws. To ensure that the creepage distance of electronic components meets safety regulations, the electronic components inside the charging head are arranged extremely close to the outer casing, resulting in excessively high localized temperatures and excessive noise. Summary of the Invention

[0003] This utility model provides a charging head to solve the problems of excessively high local temperature of the outer shell and excessive noise of existing charging heads.

[0004] A charging head includes a housing, electronic components, and a heat dissipation structure; Both the electronic components and the heat dissipation structure are installed inside the housing; The heat dissipation structure includes a sponge and a graphite sheet. One surface of the graphite sheet is in contact with the shell wall of the outer casing, and the other surface of the graphite sheet is provided with the sponge. The sponge covers the electronic components.

[0005] Preferably, the heat dissipation structure further includes an insulating sheet disposed between the sponge and the graphite sheet.

[0006] Preferably, the heat dissipation structure further includes a first double-sided adhesive, which is disposed between the sponge and the graphite sheet.

[0007] Preferably, the heat dissipation structure is detachably mounted on the shell wall of the outer casing.

[0008] Preferably, the detachable structure includes a second double-sided adhesive, which is disposed between the graphite sheet and the shell wall of the outer casing to fix the graphite sheet to the shell wall of the outer casing.

[0009] Preferably, the detachable structure includes a first snap-fit ​​member and a second snap-fit ​​member, the first snap-fit ​​member being disposed on the graphite sheet, and the second snap-fit ​​member being disposed on the shell wall of the outer casing, the first snap-fit ​​member and the second snap-fit ​​member being snapped together to fix the graphite sheet on the shell wall of the outer casing.

[0010] Preferably, the detachable structure includes an insert groove disposed on the shell wall of the outer casing, and the graphite sheet is inserted into the insert groove.

[0011] Preferably, the housing includes a shell and a cover, the cover being installed inside the shell, together forming an accommodating space for mounting the electronic components and the heat dissipation structure.

[0012] The charging head provided in this embodiment utilizes the liquid absorption properties of a sponge to solve the leakage problem of electronic components (such as electrolytic capacitors) under extreme input voltage conditions. The sponge can also effectively isolate noise sources within the electronic components (such as magnetic core components like the primary transformer of the power supply PCBA) and absorb the noise generated by these sources, improving the charging head's noise performance. Furthermore, the sponge can optimize the charging head's waterproof rating; when the internal humidity of the charging head is high, the sponge can absorb moisture, better ensuring the charging head's safety. Utilizing the thermal conductivity of the graphite sheet, the heat generated by the electronic components can be evenly and quickly transferred to the outer casing, preventing localized overheating of the casing and improving the overall temperature rise of the casing, effectively enhancing heat dissipation. In this example, by integrating the sponge and graphite sheet of the heat dissipation structure into a single unit, the structure is simple and occupies little space. The heat dissipation structure is installed between the outer casing wall and the electronic components, improving the charging head's heat dissipation effect and solving noise problems caused by limited space and leakage problems under extreme operating conditions of electronic components. It has strong promotional and application value. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is an internal structural diagram of the charging head in one embodiment of the present invention; Figure 2 This is a first exploded view of the charging head in one embodiment of the present invention; Figure 3 This is a second exploded view of the charging head in one embodiment of the present invention; Figure 4 This is a third exploded view of the charging head in one embodiment of this utility model.

[0015] Among them, 1. Outer shell; 11. Housing; 12. Shell cover; 2. Electronic components; 3. Heat dissipation structure; 31. Sponge; 32. Graphite sheet; 33. Insulating sheet; 34. First double-sided adhesive; 35. Detachable structure; 351. First snap-fit ​​component; 352. Second snap-fit ​​component; 353. Mounting slot. Detailed Implementation

[0016] To make the technical problems, technical solutions, and beneficial effects solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0017] In the description of this application, it should be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0018] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0019] This utility model provides a charging head, see reference. Figure 1 and Figure 2 The charging head includes a shell 1, electronic components 2, and a heat dissipation structure 3. The electronic components 2 and the heat dissipation structure 3 are both installed inside the shell 1. The heat dissipation structure 3 includes a sponge 31 and a graphite sheet 32. One surface of the graphite sheet 32 ​​is in contact with the shell wall of the shell 1, and the other surface of the graphite sheet 32 ​​is provided with the sponge 31, which covers the electronic components 2.

[0020] As an example, a charging head, such as a fast charging power supply, includes a housing 1, electronic components 2, and a heat dissipation structure 3. Both the electronic components 2 and the heat dissipation structure 3 are installed inside the housing 1. The heat dissipation structure 3 can quickly transfer the heat generated by the electronic components 2 to the housing 1, effectively improving the heat dissipation effect. The heat dissipation structure 3 includes a sponge 31 and a graphite sheet 32. During installation, one surface of the graphite sheet 32 ​​is in contact with the shell wall of the outer casing 1, and the other surface of the graphite sheet 32 ​​is covered with the sponge 31, which covers the electronic components 2. This arrangement utilizes the liquid absorption properties of the sponge 31 to solve the problem of liquid leakage in the electronic components 2 (such as electrolytic capacitors) under extreme input voltage conditions. The sponge 31 can also effectively isolate noise sources in the electronic components 2 (such as magnetic core components like the primary transformer of the power supply PCBA) and absorb the noise generated by the noise sources, thus improving the noise performance of the charging head. The sponge 31 can also optimize the waterproof rating of the charging head. When the internal humidity of the charging head is high, the sponge 31 can absorb moisture, better ensuring the safety of the charging head. The graphite sheet 32 ​​has excellent thermal conductivity, which can quickly and evenly diffuse the heat generated by the operation of the electronic components 2 to the outer casing 1, avoiding excessive local temperature of the outer casing 1, improving the overall temperature rise of the outer casing 1, and effectively improving the heat dissipation effect. In this example, by forming the sponge 31 and graphite sheet 32 ​​of the heat dissipation structure 3 into a whole, the structure is simple and occupies less space. The heat dissipation structure 3 is installed between the shell wall of the outer shell 1 and the electronic component 2, which can improve the heat dissipation effect of the charging head, and can also solve the noise problem caused by the compact space and the leakage problem of the electronic component 2 under extreme working conditions. It has strong promotion and application value.

[0021] Electronic component 2 includes a power supply PCBA primary transformer and electrolytic capacitor, with sponge 31 covering the top of the power supply PCBA primary transformer and electrolytic capacitor.

[0022] For example, when the charging head encounters an abnormal extreme input voltage, the electrolytic capacitor will open due to overvoltage. At this time, the sponge 31 on the top of the electrolytic capacitor can effectively absorb the leaked electrolyte, preventing the electrolyte from overflowing from the outer casing 1 or onto other internal electronic components 2 and causing safety issues.

[0023] For example, when the charging head is working normally, the noise source is usually the magnetic core device. As charging heads are gradually becoming smaller, the distance between the magnetic core device such as the primary transformer of the power supply PCBA and the outer shell 1 is very close. At this time, the noise can be effectively improved by the sponge 31 on the top of the primary transformer of the power supply PCBA after absorption.

[0024] For example, when the charging head is working normally, the primary transformer and electrolytic capacitor of the power PCBA are important heat-generating components inside the charging head. The sponge 31 can effectively isolate the heat source from the outer shell 1. At the same time, the graphite sheet 32 ​​connected to the sponge 31 can effectively distribute the heat evenly to the outer shell 1, avoiding excessive heat concentration that could cause the temperature of the outer shell 1 to exceed the standard.

[0025] For example, when the charging head is in a humid working environment, the moisture absorption of the sponge 31 can improve the waterproof rating of the charging head and enhance its safety and reliability.

[0026] In one embodiment, reference is made to Figure 2 The heat dissipation structure 3 also includes an insulating sheet 33, which is disposed between the sponge 31 and the graphite sheet 32.

[0027] As an example, the heat dissipation structure 3 also includes an insulating sheet 33. During installation, the insulating sheet 33 is placed between the sponge 31 and the graphite sheet 32. This arrangement effectively isolates the sponge 31 and the graphite sheet 32, preventing direct contact that could lead to abnormal current conduction, thus preventing short circuits and ensuring the normal operation of the electronic equipment. The insulating sheet 33 also increases electrical clearance and creepage distance, reducing the risk of electric shock and improving the electrical safety performance of the product. Furthermore, the insulating sheet 33 can act as a heat conduction regulating layer, guiding heat along a specific path. For example, in some electronic devices requiring directional heat dissipation, by appropriately selecting the material and thickness of the insulating sheet 33, heat can be transferred to the heat dissipation device more effectively, improving heat dissipation efficiency. The sponge 31 typically has a certain degree of thermal insulation, and the insulating sheet 33 can further reduce the interference of the sponge 31 on the heat conduction of the graphite sheet 32. It can prevent disordered heat transfer between the sponge 31 and the graphite sheet 32, ensuring that heat can be dissipated in a concentrated and efficient manner, avoiding damage to electronic components from localized overheating. The insulating sheet 33 also increases the structural strength and stability between the sponge 31 and the graphite sheet 32. For example, during the use of electronic devices, they may be subjected to external forces such as vibration and impact. The insulating sheet 33 can act as a buffer and support, preventing relative displacement or deformation of the sponge 31 and graphite sheet 32, and ensuring the integrity and reliability of the entire heat dissipation structure 3. The insulating sheet 33 can also serve as a positioning and fixing layer, allowing the sponge 31 and graphite sheet 32 ​​to be installed together more accurately, improving assembly efficiency and quality. At the same time, the insulating sheet 33 can be easily disassembled and replaced during equipment maintenance, reducing maintenance costs.

[0028] In one embodiment, reference is made to Figure 2 The heat dissipation structure 3 also includes a first double-sided adhesive 34, which is disposed between the sponge 31 and the graphite sheet 32.

[0029] As an example, the heat dissipation structure 3 also includes a first double-sided adhesive 34. During installation, the first double-sided adhesive 34 is placed between the sponge 31 and the graphite sheet 32. Specifically, the graphite sheet 32 ​​and the sponge 31 are bonded together as a whole by a Mylar sheet with double-sided adhesive. Then, this whole is placed on the electronic component 2 (for example, with the orientation of the charging head's pins as the length direction, the whole is placed on the top of the electronic component 2 in the thickness direction of the charging head). With this arrangement, the sponge 31 is directly attached to the graphite sheet 32, eliminating the need for the insulating sheet 33. The overall structure of the heat dissipation structure 3 is simple and occupies less space. The heat dissipation structure 3 is installed between the shell wall of the outer casing 1 and the electronic component 2, which can improve the heat dissipation effect of the charging head and solve the noise problem caused by the compact space and the leakage problem of the electronic component 2 under extreme working conditions. It has strong promotion and application value.

[0030] In one example, refer to Figure 2 The heat dissipation structure 3 includes a sponge 31, a graphite sheet 32, an insulating sheet 33, and a first double-sided adhesive 34. During installation, the insulating sheet 33 and the first double-sided adhesive 34 are placed between the sponge 31 and the graphite sheet 32, making the assembly of the heat dissipation structure 3 more convenient.

[0031] In one embodiment, reference is made to Figure 3 and Figure 4 The heat dissipation structure 3 is mounted on the shell wall of the outer casing 1 via a detachable structure 35.

[0032] As an example, the heat dissipation structure 3 is mounted on the shell wall of the outer casing 1 via a detachable structure 35. This configuration facilitates the assembly and disassembly of the heat dissipation structure 3, thereby improving work efficiency.

[0033] In one embodiment, reference is made to Figure 3 The detachable structure 35 includes a second double-sided adhesive, which is disposed between the graphite sheet 32 ​​and the shell wall of the outer casing 1 to fix the graphite sheet 32 ​​to the shell wall of the outer casing 1.

[0034] As an example, a first structural form of the detachable structure 35 is introduced. The detachable structure 35 includes a second double-sided adhesive. During installation, the second double-sided adhesive is placed between the graphite sheet 32 ​​and the shell wall of the outer casing 1, which can fix the graphite sheet 32 ​​to the shell wall of the outer casing 1, so as to install and remove the heat dissipation structure 3. The number of second double-sided adhesives can be one or two.

[0035] In one embodiment, reference is made to Figure 3 The detachable structure 35 includes a first snap-fit ​​member 351 and a second snap-fit ​​member 352. The first snap-fit ​​member 351 is disposed on the graphite sheet 32, and the second snap-fit ​​member 352 is disposed on the shell wall of the outer casing 1. The first snap-fit ​​member 351 and the second snap-fit ​​member 352 snap-fit ​​together to fix the graphite sheet 32 ​​on the shell wall of the outer casing 1.

[0036] As an example, a second structural form of the detachable structure 35 is introduced. The detachable structure 35 includes a first snap-fit ​​member 351 and a second snap-fit ​​member 352. During installation, the first snap-fit ​​member 351 is placed on the graphite sheet 32, and the second snap-fit ​​member 352 is placed on the shell wall of the outer casing 1. The first snap-fit ​​member 351 and the second snap-fit ​​member 352 snap together to fix the graphite sheet 32 ​​to the shell wall of the outer casing 1, so as to install and remove the heat dissipation structure 3. Among them, the first snap-fit ​​member 351 includes two symmetrically arranged L-shaped brackets. The two L-shaped brackets and the shell wall of the outer casing 1 cooperate to form a drawer space. The second snap-fit ​​member 352 is the protruding part of the two opposite sides of the graphite sheet 32. The graphite sheet 32 ​​can be pushed and pulled into the drawer space, and the protruding part snaps between the L-shaped bracket and the shell wall of the outer casing 1.

[0037] In one embodiment, reference is made to Figure 4 The detachable structure 35 includes an insert groove 353 provided on the shell wall of the outer shell 1, and the graphite sheet 32 ​​is inserted into the insert groove 353.

[0038] As an example, a third structural form of the detachable structure 35 is introduced. The detachable structure 35 includes an insert groove 353 provided on the shell wall of the outer shell 1. The graphite sheet 32 ​​is inserted into the insert groove 353. Specifically, the graphite sheet 32 ​​and the sponge 31 are integrated as a single insert. The insert groove 353 is made on the shell wall of the outer shell 1. The heat dissipation structure 3 is directly inserted into the insert groove 353, eliminating the need for bonding.

[0039] In one embodiment, reference is made to Figure 1 The outer casing 1 includes a housing 11 and a cover 12, with the cover 12 installed inside the housing 11, together forming an accommodating space for installing electronic components 2 and heat dissipation structure 3.

[0040] As an example, the housing 1 includes a housing 11 and a cover 12. During installation, the cover 12 is installed inside the housing 11, forming an accommodating space. This accommodating space can be used to install electronic components 2 and a heat dissipation structure 3, providing protection for the electronic components 2 and the heat dissipation structure 3. The housing 11 and the cover 12 are assembled together by a connecting structure, which includes any one of a plug-in assembly, a snap-fit ​​assembly, and a screw-in assembly.

[0041] For example, the plug-in assembly includes plug-in pins and sockets. Multiple plug-in pins are provided on the housing 11 and multiple sockets are provided on the cover 12. Each plug-in pin is plugged into a socket. Multiple plug-in pins are plugged into multiple sockets respectively to realize the docking of the housing 11 and the cover 12 to form a whole. The plug-in principle makes it easy to assemble or separate the housing 11 and the cover 12.

[0042] For example, the snap-fit ​​assembly includes snaps and protrusions. Multiple snaps are provided on the housing 11 and multiple protrusions are provided on the cover 12. Each snap is snapped into a protrusion. Multiple snaps are snapped into multiple protrusions respectively to realize the docking of the housing 11 and the cover 12 to form a whole. The snap-fit ​​principle makes it easy to assemble or separate the housing 11 and the cover 12.

[0043] For example, the screw assembly includes multiple bolts, with multiple first bolt holes on the housing 11 and multiple second bolt holes on the cover 12. Each bolt is inserted into a first bolt hole and a second bolt hole. Multiple bolts are inserted into multiple first bolt holes and multiple second bolt holes respectively to connect the housing 11 and the cover 12 to form an integral whole.

[0044] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A charging head, characterized by, Including the casing, electronic components, and heat dissipation structure; Both the electronic components and the heat dissipation structure are installed inside the housing; The heat dissipation structure includes a sponge and a graphite sheet. One surface of the graphite sheet is in contact with the shell wall of the outer casing, and the other surface of the graphite sheet is provided with the sponge. The sponge covers the electronic components.

2. The charging head of claim 1, wherein, The heat dissipation structure also includes an insulating sheet disposed between the sponge and the graphite sheet.

3. The charging head of claim 1, wherein, The heat dissipation structure also includes a first double-sided adhesive, which is disposed between the sponge and the graphite sheet.

4. The charging head according to claim 1, characterized in that, The heat dissipation structure is detachably mounted on the shell wall of the outer casing.

5. The charging head according to claim 4, characterized in that, The detachable structure includes a second double-sided adhesive, which is disposed between the graphite sheet and the shell wall of the outer casing to fix the graphite sheet to the shell wall of the outer casing.

6. The charging head according to claim 4, characterized in that, The detachable structure includes a first snap-fit ​​component and a second snap-fit ​​component. The first snap-fit ​​component is disposed on the graphite sheet, and the second snap-fit ​​component is disposed on the shell wall of the outer casing. The first snap-fit ​​component and the second snap-fit ​​component are snapped together to fix the graphite sheet on the shell wall of the outer casing.

7. The charging head according to claim 4, characterized in that, The detachable structure includes an insert groove provided on the shell wall of the outer casing, and the graphite sheet is inserted into the insert groove.

8. The charging head according to claim 1, characterized in that, The housing includes a shell and a cover, the cover being installed inside the shell, together forming an accommodating space for mounting the electronic components and the heat dissipation structure.

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