Charging device

Abstract

The embodiment of the utility model discloses a charging device, which comprises a shell, an electrical assembly and a hydrogel layer, and is characterized in that the shell is provided with an accommodating cavity; the electrical assembly is arranged in the accommodating cavity; the hydrogel layer is arranged on the outer wall of the shell; wherein the outer wall of the shell comprises an annular peripheral wall, and the hydrogel layer is arranged around the annular peripheral wall and is attached to the annular peripheral wall. According to the charging device, the hydrogel layer is arranged, compared with natural heat dissipation through the shell, the heat dissipation capacity of the hydrogel layer is higher, and therefore the temperature of the electronic assembly can be reduced, equipment is prevented from being overheated, stable operation of the charging device is guaranteed, and the service life of the charging device is prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of charging devices, and in particular to a charging device. Background Art

[0002] In the related art, the charging device generates heat when working, and the charging device mainly dissipates heat naturally through the shell. However, the efficiency of natural heat dissipation of the shell is low, which can easily cause the internal circuit of the device to overheat, affecting the stability and safety of the device. Utility Model Content

[0003] The embodiment of the present application provides a charging device, which can improve the heat dissipation effect of the device and enhance the stability and safety of the device.

[0004] An embodiment of the present application provides a charging device, which includes a shell, an electrical component and a hydrogel layer, wherein the shell has a accommodating cavity; the electrical component is disposed in the accommodating cavity; the hydrogel layer is disposed on the outer wall of the shell; wherein the outer wall of the shell includes an annular circumferential wall, and the hydrogel layer is disposed around the annular circumferential wall and is attached to the annular circumferential wall.

[0005] Beneficial effect: The charging device of the embodiment of the present application is provided with a hydrogel layer. Compared with the natural heat dissipation through the shell, the hydrogel layer has a stronger heat dissipation capacity, thereby reducing the temperature of the electronic components, preventing the equipment from overheating, ensuring the stable operation of the charging device, and extending its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0007] Figure 1 This is a schematic diagram of the structure of a charging device in one embodiment of the present application;

[0008] Figure 2 This is a schematic diagram of the exploded structure of a charging device in one embodiment of the present application;

[0009] Figure 3 It is a schematic diagram of the exploded structure of a charging device in another embodiment of the present application;

[0010] Figure 4 This is a schematic diagram of the structure of a housing in one embodiment of the present application;

[0011] Figure 5 This is a schematic structural diagram of a hydrogel layer in one embodiment of the present application;

[0012] Figure 6 This is a schematic diagram of the structure of the hydrogel layer and the orifice plate in one embodiment of the present application;

[0013] Figure 7 It is a structural schematic diagram of a charging device in another embodiment of the present application;

[0014] Figure 8 This is a schematic structural diagram of a housing in another embodiment of the present application;

[0015] Fig. 9 This is a schematic structural diagram of a housing in yet another embodiment of the present application;

[0016] Fig.10 This is a schematic diagram of the structure of a shell in another embodiment of the present application.

[0017] Explanation of the reference numerals: 100, charging device; 110, shell; 110a, first ring groove; 110b, second ring groove; 111, first shell; 111a, first opening; 111b, second opening; 1111, first partition; 1112, second partition; 112, second shell; 113, third shell; 120, electrical component; 130, hydrogel layer; 130a, first slit; 140, orifice plate; 140a, second slit; 150, heat conductor; 160, output interface; 170, power cord. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0019] like Figure 1-3 As shown, a first aspect of an embodiment of the present application provides a charging device 100 , which includes a housing 110 , an electrical component 120 , and a hydrogel layer 130 .

[0020] The shell 110 has a accommodating cavity, and the electrical component 120 is arranged in the accommodating cavity. The shell 110 is used to protect the electrical component 120 to reduce the impact on the electrical component 120. In addition, the shell 110 can also play an insulating role to prevent the user from getting an electric shock. The shape of the shell 110 can be exemplarily rectangular, so that the appearance of the charging device 100 is more regular and the space utilization rate is higher. The material of the shell 110 can be plastic, so that the cost of the shell 110 is low, the weight is light, and it is easy to injection mold into various shapes. The material of the shell 110 can be metal, so as to improve the strength of the shell 110, improve the service life of the shell 110, and have a certain shielding effect on external clutter. The metal is coated with an insulating material to achieve an insulating effect.

[0021] The electrical component 120 is used to charge electronic devices. The electrical component 120 generates heat when working and radiates the heat to the housing 110. If the housing 110 cannot dissipate the heat in time, the electrical component 120 will overheat, thereby affecting the stability and safety of the charging device 100 and the charging power of the electrical component 120.

[0022] Hydrogel is a polymer nano phase change material that contains a hydrophilic three-dimensional network structure, so it can hold a large amount of water. The water content in the hydrogel can be as low as a few percent or as high as 99%. After the hydrogel absorbs heat, the liquid water inside is converted into water vapor, and the evaporation of water absorbs heat, thereby achieving the purpose of cooling. By setting up the hydrogel, the purpose of heat dissipation can be achieved without the help of external energy drive, which is more green and environmentally friendly. In daily life, the hydrogel absorbs water vapor in the air and stores it in liquid form. Generally speaking, the charging device 100 will not work continuously. When the charging device 100 stops working, the electrical component 120 will not generate heat. The hydrogel can absorb moisture from the air for subsequent evaporation and heat dissipation, so that the hydrogel can be used repeatedly.

[0023] The hydrogel layer 130 is a hydrogel in a layered structure. The surface area of ​​the hydrogel layer 130 is relatively large, so the contact area with the housing 110 is relatively large, and the thickness of the hydrogel layer 130 is relatively thin, which is conducive to heat dissipation.

[0024] The outer wall of the shell 110 includes an annular circumferential wall. Compared with a single surface, the surface area of ​​the annular circumferential wall is relatively larger, which can maximize the heat dissipation area. The hydrogel layer 130 is arranged around the annular circumferential wall and attached to the annular circumferential wall, so that the contact area between the hydrogel layer 130 and the shell 110 is relatively large, and the heat dissipation efficiency is relatively high. The hydrogel layer 130 can be composed of a single piece, so that the hydrogel layer 130 can be formed with the shell 110 through a single attachment, reducing the assembly process. The hydrogel layer 130 can also be composed of multiple pieces, and the hydrogel layer 130 can be annular as a whole, thereby reducing the difficulty of attaching the hydrogel layer 130. Exemplarily, the outer shape of the shell 110 is a cube, and the annular circumferential wall can cover the four surfaces of the shell 110, thereby maximizing the heat dissipation area of ​​the shell 110. Optionally, the annular circumferential wall covers four relatively large surfaces to cover as much of the shell 110 as possible. The outer shape of the housing 110 is cylindrical, and the annular peripheral wall can be the outer peripheral wall of the housing 110, so as to maximize the heat dissipation area of ​​the housing 110. Of course, the hydrogel layer 130 can also cover every surface of the housing 110, so as to further increase the heat dissipation area. The connection method of the hydrogel layer 130 and the housing 110 can be, for example, bonding, screwing, or relying on the shrinkage elastic force of the hydrogel layer 130 to abut against the housing 110.

[0025] The charging device 100 of the embodiment of the present application is provided with a hydrogel layer 130. Compared with the natural heat dissipation through the housing 110, the hydrogel layer 130 has a stronger heat dissipation capacity, thereby reducing the temperature of the electrical component 120, preventing the charging device 100 from overheating, ensuring the stable operation of the charging device 100, and extending its service life. Since the charging device 100 of the embodiment of the present application can effectively control the temperature, the charging power of the charging device 100 can be increased, thereby improving the charging efficiency.

[0026] In some embodiments, a groove is provided on the annular circumferential wall, and the hydrogel layer 130 abuts against the groove wall of the groove. The number of grooves may be one or more, and the shape of the groove may be a circular groove, a square groove, a long strip groove, etc. By providing a groove on the annular circumferential wall, the surface area of ​​the annular circumferential wall can be increased, that is, the contact area between the hydrogel layer 130 and the shell 110 is increased, thereby further improving the heat dissipation effect of the shell 110. In addition, the hydrogel layer 130 abuts against the groove wall of the groove, that is, the hydrogel layer 130 is at least partially embedded in the groove, and the groove and the hydrogel layer 130 can form a limiting fit, so that the hydrogel layer 130 can be better fixed to the shell 110.

[0027] like Figure 3As shown, in some embodiments, the groove includes a first annular groove 110a arranged around the shell 110, and the hydrogel layer 130 abuts against the groove wall of the first annular groove 110a. The first annular groove 110a can play a limiting effect, and compared with the arrangement of multiple grooves, the shape of the first annular groove 110a is relatively simple, and the mold opening is relatively easy, so the manufacturing cost is low.

[0028] The groove wall of the first annular groove 110a includes a side wall and a bottom wall. Optionally, the hydrogel layer 130 abuts against both the side wall and the bottom wall of the first annular groove 110a, so that the hydrogel layer 130 has a better fixation and heat conduction effect, and is not easy to hide dirt. Of course, the hydrogel layer 130 can also abut against the bottom wall of the first annular groove 110a and be spaced from the side wall of the first annular groove 110a, that is, the size of the hydrogel layer 130 is slightly smaller than the size of the first annular groove 110a, so that the hydrogel layer 130 does not need to be accurately aligned when installed in the first annular groove 110a, and the installation difficulty is relatively low.

[0029] The thickness of the hydrogel layer 130 can be the same as the depth of the first annular groove 110a, that is, the hydrogel layer 130 is completely embedded in the first annular groove 110a, so that the hydrogel layer 130 is relatively flush with the housing 110 after being installed in the first annular groove 110a, and the hydrogel layer 130 is not easy to be peeled off from the housing 110, and the installation stability of the hydrogel layer 130 is good. In addition, the surface of the charging device 100 is relatively smooth, relatively stable when placed, and not easy to be scratched by other objects when carried.

[0030] In the related art, the hydrogel layer 130 is soft and easily abraded. Figure 3 As shown, in some embodiments, the charging device 100 further includes a perforated plate 140, which is disposed on the surface of the hydrogel layer 130 facing away from the housing 110, and a plurality of heat dissipation holes are provided on the perforated plate 140. The heat dissipation holes can provide a good ventilation effect, so that the gaseous water evaporated from the hydrogel layer 130 can be dissipated into the air through the heat dissipation holes, thereby ensuring the heat dissipation efficiency. Since the perforated plate 140 is relatively hard, the wear resistance of the perforated plate 140 is relatively better, and the sense of security is better when holding the charging device 100. The provision of the perforated plate 140 can have a certain protective effect on the hydrogel layer 130, and try to avoid scratches or dirt on the hydrogel layer 130. Of course, the perforated plate 140 can have a certain elasticity so as to be able to produce a certain elastic deformation, thereby facilitating assembly.

[0031] The material of the orifice plate 140 can be polycarbonate, leather, polyurethane, metal, etc. The heat dissipation holes can be formed by post-processing, or the heat dissipation holes can be formed by micropores of the material itself. The size of the heat dissipation holes can generally be between 0.01 mm and 1 mm, so as not to affect the ventilation effect and to achieve a good effect of isolating dirt.

[0032] like Figure 3 As shown, in some embodiments, the outer wall of the shell 110 is provided with a second annular groove 110b, and the orifice plate 140 is fitted with the bottom wall of the second annular groove 110b. The second annular groove 110b can play a limiting effect, so that the orifice plate 140 and the shell are better fixed. The shape of the second annular groove 110b is relatively simple, and it is relatively easy to open the mold, so the manufacturing cost is low. The first annular groove 110a is formed on the bottom wall of the second annular groove 110b, that is, the first annular groove 110a is more concave than the second annular groove 110b. At this time, the hydrogel layer 130 is installed in the first annular groove 110a and is flush with the bottom wall of the second annular groove 110b.

[0033] The groove wall of the second annular groove 110b includes a side wall and a bottom wall. Optionally, the orifice plate 140 abuts against both the side wall and the bottom wall of the second annular groove 110b, so that the orifice plate 140 and the housing 110 have a better fixing effect and are not easy to hide dirt. Of course, the orifice plate 140 can also abut against the bottom wall of the second annular groove 110b and be spaced from the side wall of the second annular groove 110b, that is, the size of the orifice plate 140 is slightly smaller than the size of the second annular groove 110b, so that the hydrogel layer 130 does not need to be accurately aligned when installed in the second annular groove 110b, and the installation difficulty is relatively low.

[0034] The thickness of the orifice plate 140 is the same as the depth of the second annular groove 110b. The orifice plate 140 can just fill the second annular groove 110b, that is, after the orifice plate 140 is installed in the second annular groove 110b, it is relatively flush with the shell 110. The orifice plate 140 is completely embedded in the second annular groove 110b. The orifice plate 140 is not easy to be peeled off, and the surface of the charging device 100 is relatively smooth, which is easy to place stably and is not easy to be scratched by other objects when carried.

[0035] In some embodiments, the charging device 100 further includes an adhesive layer, and the adhesive layer is arranged corresponding to the edge of the hydrogel layer 130, that is, the adhesive layer is only arranged at the edge of the hydrogel layer 130, so as to avoid blocking the hydrogel layer 130 as much as possible and ensure the heat dissipation effect of the hydrogel layer 130. The shape of the adhesive layer can be a ring with the same outline size as the hydrogel layer 130, so that the adhesive layer is more convenient to install and has a better fixing effect. Or the adhesive layer can include multiple sections of shorter strip adhesive layers, so that the adhesive layer is more universal and does not need to be customized according to the shape of the hydrogel layer 130, thereby reducing production costs. The adhesive layer can be a double-sided tape, and of course it can also be an adhesive coated on the hydrogel layer 130.

[0036] The adhesive layer may be bonded between the hydrogel layer 130 and the housing 110 to provide a better fit between the hydrogel layer 130 and the housing 110. Optionally, the hydrogel layer 130 is bonded to the housing 110 in a stretched state, so that the hydrogel layer 130 and the housing 110 have a better fit.

[0037] The adhesive layer may be bonded between the hydrogel layer 130 and the orifice plate 140 to ensure that the hydrogel layer 130 and the orifice plate 140 have a higher connection strength.

[0038] The adhesive layer may be bonded between the orifice plate 140 and the housing 110 , so that the orifice plate 140 and the housing 110 have a higher connection strength.

[0039] In some embodiments, the width of the first annular groove 110 a is half or more of the width of the housing 110 , so that the hydrogel layer 130 can occupy a relatively large area of ​​the outer surface of the housing 110 , thereby improving the heat dissipation effect.

[0040] In some embodiments, the first annular groove 110a includes a plurality of first sub-annular grooves spaced apart in the width direction of the housing 110, and correspondingly, the hydrogel layer 130 is distributed in strips. The more the number of first sub-annular grooves, the larger the surface area of ​​the annular peripheral wall, the larger the contact area between the hydrogel layer 130 and the annular peripheral wall, and thus the better the heat dissipation effect.

[0041] like Figure 4 and Figure 6 As shown, in some embodiments, the bottom wall of the first annular groove 110a is provided with a first partition 1111, and the hydrogel layer 130 has a first slit 130a matched with the first partition 1111, and the first partition 1111 is filled between the first slits 130a. The first partition 1111 can improve the strength of the shell 110. At the same time, when assembling the hydrogel layer 130, one end of the hydrogel layer 130 can be abutted against one side of the first partition 1111, and then the hydrogel layer 130 can be gradually filled into the first annular groove 110a until the other end of the hydrogel layer 130 abuts against the other side of the first partition 1111, so as to facilitate the positioning and installation of the hydrogel layer 130. Moreover, since the hydrogel layer 130 is a disconnected type, it is convenient to produce the hydrogel layer 130, and it is also convenient to install the hydrogel layer 130 in the first annular groove 110a.

[0042] Optionally, the first partition 1111 is disposed at the bottom of the shell 110. Generally speaking, the top and sides of the shell 110 have relatively high requirements for heat dissipation capabilities, while the bottom of the shell 110 has relatively low requirements for heat dissipation capabilities. Therefore, the first partition 1111 is disposed at the bottom of the shell 110. Even if the first partition 1111 is not covered by the hydrogel layer 130, it has little effect on the heat dissipation capability of the charging device 100.

[0043] like Figure 4-7 As shown, in some embodiments, a second partition 1112 is protrudingly provided on the first partition 1111, and the orifice plate 140 has a second slit 140a matched with the second partition 1112, and the second partition 1112 is filled between the second slits 140a. The second partition 1112 can improve the strength of the housing 110. At the same time, when assembling the orifice plate 140, one end of the orifice plate 140 is first abutted against one side of the second partition 1112, and then the orifice plate 140 is gradually filled into the second annular groove 110b until the other end of the orifice plate 140 abuts against the other side of the second partition 1112, thereby facilitating the positioning and installation of the orifice plate 140. Since the orifice plate 140 is a disconnected type, it is convenient to produce the orifice plate 140, and it is also convenient to install the orifice plate 140 in the second annular groove 110b.

[0044] Alternatively, the hydrogel layer 130 and the orifice plate 140 may be preassembled together, and then one end of the orifice plate 140 is abutted against one side of the second partition 1112, at which point one end of the hydrogel layer 130 is abutted against one side of the first partition 1111, and then the orifice plate 140 is gradually filled into the second annular groove 110b, and at which point the hydrogel layer 130 is gradually filled into the first annular groove 110a, until the other end of the orifice plate 140 is abutted against the other side of the second partition 1112, and at which point the other end of the hydrogel layer 130 is abutted against the other side of the first partition 1111, thereby facilitating the positioning and installation of the orifice plate 140 and the hydrogel layer 130. By installing the orifice plate 140, the hydrogel layer 130 may also be installed simultaneously, thereby reducing assembly steps and improving production efficiency.

[0045] Optionally, the second partition 1112 is disposed at the bottom of the housing 110 , which can reduce the impact on the heat dissipation capability of the charging device 100 .

[0046] like Figure 7-8 As shown, in some embodiments, the charging device 100 further includes an output interface 160 and a power cord 170 connected to the electrical component 120. The output interface 160 is used to connect the charging cable, and the type of the output interface 160 can be exemplarily USB-A, USB-C, etc. The power cord 170 is used to connect to the mains to power the charging device 100.

[0047] like Figure 7-10As shown, the housing 110 includes a first housing 111, a second housing 112 and a third housing 113, which together form a receiving cavity. The first housing 111 is annular, and has a first opening 111a and a second opening 111b opposite to each other. The first annular groove 110a is disposed on the first housing 111, and the first housing 111 can be relatively large, so that the area of ​​the first annular groove 110a is relatively large, so as to improve the heat dissipation capacity.

[0048] The second housing 112 covers the first opening 111a, and the second housing 112 is provided with a plug hole corresponding to the output interface 160. Since the volume of the output interface 160 is relatively small, the second housing 112 can be relatively small. Moreover, since the heat generated at the output interface 160 is relatively small, the hydrogel layer 130 does not need to be provided on the second housing 112.

[0049] The third housing 113 covers the second opening 111b and allows the power cord 170 to pass through. Since the diameter of the power cord 170 is relatively small, the second housing 112 can be relatively small. Moreover, since the heat generated by the power cord 170 is relatively small, the hydrogel layer 130 does not need to be provided on the third housing 113.

[0050] like Fig.10 As shown, in some embodiments, the charging device 100 further includes a heat conductor 150, which is disposed in the accommodating cavity and abuts against the inner wall of the housing 110 and the electrical component 120. The heat conductor 150 may include a thermally conductive adhesive, which abuts against the inner wall of the housing 110 and the electrical component 120 to conduct heat to the housing 110. At the same time, the thermally conductive adhesive can also encapsulate the electronic components on the electrical component 120 to protect the electrical components. The heat conductor 150 may also include a thermally conductive sheet such as copper foil or graphite sheet, which is attached to the inner wall of the housing 110 and abuts against the electrical component 120 or the thermally conductive adhesive to quickly and evenly guide the heat conducted by the electrical component 120 or the thermally conductive adhesive to the housing 110, thereby improving the heat dissipation efficiency. At the same time, the copper foil and the graphite sheet can also play a certain shielding role.

[0051] In some embodiments, the electrical component 120 includes a rectifier module, and the charging device 100 can be a charger. Alternatively, the electrical component 120 includes an energy storage module, and the charging device 100 can be a mobile power supply. Alternatively, the electrical component 120 includes a rectifier module and an energy storage module, and the charging device 100 can be a two-in-one product of a mobile power supply and a charger.

[0052] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of this application, it should be understood that if the terms "up", "down", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this application. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0053] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A charging device, characterized in that: include: A housing having a receiving cavity; An electrical component is disposed in the accommodating cavity; A hydrogel layer, disposed on the outer wall of the shell; Wherein, the outer wall of the shell includes an annular circumferential wall, and the hydrogel layer is arranged around the annular circumferential wall and attached to the annular circumferential wall.

2. The charging device according to claim 1, characterized in that: The annular peripheral wall is provided with a groove, and the hydrogel layer abuts against the groove wall of the groove.

3. The charging device according to claim 2, characterized in that: The groove comprises a first annular groove circumferentially arranged along the annular peripheral wall, the hydrogel layer abuts against the groove wall of the first annular groove, and the thickness of the hydrogel layer is the same as the depth of the first annular groove.

4. The charging device according to claim 3, characterized in that: The charging device also includes: The orifice plate is arranged on the surface of the hydrogel layer away from the shell, and a plurality of heat dissipation holes are opened on the orifice plate.

5. The charging device according to claim 4, characterized in that: The outer wall of the shell is provided with a second annular groove, the first annular groove is formed on the bottom wall of the second annular groove, the orifice plate is fitted with the bottom wall of the second annular groove, and the thickness of the orifice plate is the same as the depth of the second annular groove.

6. The charging device according to claim 4, characterized in that: The charging device also includes: The bonding layer is arranged corresponding to the edge of the hydrogel layer and is bonded between the hydrogel layer and the shell, and / or between the hydrogel layer and the orifice plate.

7. The charging device according to claim 3, characterized in that: The width of the first annular groove accounts for half or more of the width of the housing; and / or The first annular groove includes a plurality of first sub-annular grooves spaced apart from each other in the width direction of the housing.

8. The charging device according to claim 3, characterized in that: The bottom wall of the first annular groove is provided with a first partition, the first partition is arranged at the bottom of the shell, and the hydrogel layer has a first slit matched with the first partition.

9. The charging device according to claim 3, characterized in that: The charging device further comprises an output interface and a power line connected to the electrical component, and the housing comprises: A first housing, wherein the first housing has a first opening and a second opening opposite to each other, and the first annular groove is disposed on the first housing; A second housing, covering the first opening and provided with a plug-in hole corresponding to the output interface; A third housing, covering the second opening and allowing the power cord to pass through; The first shell, the second shell and the third shell together form the accommodating cavity.

10. The charging device according to any one of claims 1 to 8, characterized in that: The electrical component includes a rectifier module and / or an energy storage module.

Images