Charging device

Abstract

The embodiment of the utility model relates to a charging device. The charging device comprises an internal electronic assembly; the shell part is provided with a cavity; the cover body part is connected with the shell body part, and the cover body part is provided with a pin piece electrically connected with the internal electronic component; the heat-conducting glue part is separably arranged in the cavity, and the heat-conducting glue part and the internal electronic component are integrally formed; wherein the internal electronic component comprises a current input end and a current output end, the current input end is exposed out of one end of the heat-conducting glue part and is electrically connected with the pin piece, and the current output end is exposed out of the other end of the heat-conducting glue part. The charging device provided by the embodiment of the utility model can further improve the uniform heat dissipation effect of the internal whole assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of charging, in particular to a charging device. Background Art

[0002] Electronic products such as mobile phones, tablets, and computers usually need to be charged through charging devices such as power adapters. As people's requirements for charging speed change, fast charging technology has gradually matured. In order to meet the needs of fast charging technology, the charging device needs to provide higher output power. Providing higher output power also means that the heat generated inside the charging device also increases. In order to achieve the purpose of rapid heat dissipation of the internal charging module, the charger of the existing technology usually installs the internal charging module into the shell and then injects thermal conductive glue to fill the internal gap.

[0003] However, the flow of thermal adhesive inside the charger's shell is uncertain. After being blocked by some electronic components, it cannot flow to some local locations, resulting in gaps or blank areas inside the charger. These gaps or blank areas will affect the overall uniform heat dissipation effect inside the charger. Utility Model Content

[0004] Therefore, in order to overcome at least some of the above defects and shortcomings of the prior art, an embodiment of the present invention provides a charging device to improve the overall uniform heat dissipation effect of the charging device.

[0005] On the one hand, a charging device proposed in an embodiment of the present invention, for example, includes: an internal electronic component; a shell portion, having a cavity; a cover portion, connected to the shell portion, and the cover portion is provided with a pin member electrically connected to the internal electronic component; a thermally conductive adhesive portion, detachably arranged in the cavity, and the thermally conductive adhesive portion and the internal electronic component are integrally formed; wherein the internal electronic component includes a current input end and a current output end, the current input end is exposed at one end of the thermally conductive adhesive portion and is electrically connected to the pin member, and the current output end is exposed at the other end of the thermally conductive adhesive portion.

[0006] In some embodiments, the internal electronic component includes a first circuit board and an interface component, one end of the first circuit board protrudes from the surface of the thermal conductive adhesive portion facing the cover body portion and is provided with the current input end, the other end of the first circuit board is connected to the interface component, and at least part of the interface component is exposed from the surface of the thermal conductive adhesive portion away from the cover body portion.

[0007] In some embodiments, a locking member is provided on a side of the cover portion facing the thermally conductive adhesive portion, and the locking member is connected to the first circuit board and is electrically connected to the current input end.

[0008] In some embodiments, the cover part is provided with a blocking wall part corresponding to the clamping part, the blocking wall part is arranged to extend towards the cavity; the shell part is provided with a groove part corresponding to the blocking wall part on the inner wall of the side close to the first circuit board, and the groove part is connected with the blocking wall part.

[0009] In some embodiments, the heat-conducting glue part is provided with a groove part at the end away from the cover part, and the groove part surrounds the interface part.

[0010] In some embodiments, the internal electronic assembly further comprises a second circuit board and a first inductor, the first circuit board is connected perpendicularly to the second circuit board, the interface part is arranged on the second circuit board adjacent to the first inductor, and the groove part surrounds the edges of the interface part and the first inductor.

[0011] In some embodiments, the first inductor is exposed on the surface of the end away from the second circuit board to the surface of the end of the heat-conducting glue part away from the cover part; and / or, the groove part comprises a first groove part and a second groove part, the first groove part surrounds the edge of the interface part, and the second groove part surrounds the edge of the first inductor; and / or, the distance between the side wall of the first groove part and the interface part is 1-3 mm.

[0012] In some embodiments, the internal electronic assembly further comprises a second inductor, and the charging device further comprises an extension part connected to the first circuit board, the extension part is exposed on the end surface of the end of the heat-conducting glue part close to the cover part, and the second inductor is arranged on the extension part.

[0013] In some embodiments, the internal electronic assembly further comprises a third circuit board, the third circuit board is connected to the first circuit board and the second circuit board respectively, and the extension part is arranged on the third circuit board.

[0014] In some embodiments, the height of the extension part exposed on the end surface of the end of the heat-conducting glue part close to the cover part is 3-6 mm.

[0015] In some embodiments, the cover part is provided with a fixing part on the end close to the internal electronic assembly, the fixing part is connected with the extension part; and / or, the shell part is provided with a limiting part on the inner wall of the end away from the cover part, and the interface part is located in the limiting part.

[0016] In some embodiments, the charging device further comprises a spacing part, the spacing part is arranged between the heat-conducting glue part and the shell part, and the spacing part abuts with the heat-conducting glue part and the shell part respectively.

[0017] In some embodiments, the spacer comprises a heat uniformizing layer and a heat insulation layer, the heat uniformizing layer is in contact with the sidewall of the heat conductive glue part, and the heat insulation layer is in contact with the inner surface of the shell part.

[0018] As can be seen from the above, the charging device provided in the embodiments of the present application is integrally formed by the heat conductive glue part and the internal electronic assembly, and the heat conductive glue part is detachably arranged in the cavity, so that the internal electronic assembly and the heat conductive glue part can be integrally formed by injection molding first, and secondly, the current input end and the current output end of the internal electronic assembly are respectively exposed on the surface of the heat conductive glue part, that is, the electrical contact points of the internal electronic assembly are exposed outside the heat conductive glue part, so as to facilitate the electrical connection of the pin member, and the output end of the internal electronic assembly is also not arranged in the heat conductive glue part, so as to facilitate the connection with the external electronic equipment, which can not only avoid the gap in the heat conductive glue part after the heat conductive glue part is integrally formed with the internal electronic assembly, but also can make the internal electronic assembly evenly heat dissipation through the heat conductive glue part, and will not prevent the electrical connection between the internal electronic assembly and the pin member, thereby preventing the charging device from having the problem of poor contact. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0020] Figure 1 The overall structure schematic diagram of the charging device provided in the first embodiment of the present application is shown.

[0021] Figure 2 The overall structure schematic diagram of the charging device provided in the first embodiment of the present application is shown. Figure 1 The exploded structure schematic diagram of the charging device shown.

[0022] Figure 3 The exploded structure schematic diagram of the charging device shown. Figure 1 The structure schematic diagram of the heat conductive glue part and the internal electronic assembly integrally formed is shown.

[0023] Figure 4 The exploded structure schematic diagram of the internal electronic assembly and the heat conductive glue part in the charging device is shown. Figure 3 The exploded structure schematic diagram of the internal electronic assembly and the heat conductive glue part in the charging device is shown.

[0024] Figure 5 The another view schematic diagram is shown. Figure 4 The another view schematic diagram is shown.

[0025] Figure 6 The exploded schematic diagram of the internal electronic assembly in the charging device is shown. Figure 1 The exploded schematic diagram of the internal electronic assembly in the charging device is shown.

[0026] Figure 7for Figure 1 The schematic diagram of the structure of the cover body of the charging device shown in FIG.

[0027] Figure 8 for Figure 1 The schematic diagram of the structure of the shell part of the charging device is shown.

[0028] Figure 9 for Figure 8 Schematic diagram of the partial cross-section structure shown.

[0029] [Description of Reference Numerals]

[0030] 1: Charging device; 10: Shell; 11: Groove member; 12: Limiting member; 101: Cavity; 102: Inner shell; 103: Outer shell; 20: Cover; 21: Fixing member; 22: Positioning member; 23: Wall member; 30: Thermal adhesive portion; 31: Groove portion; 301: First end face; 311: First groove portion; 312: Second groove portion; 40: Internal electronic components; 41: First circuit board; 42: Second circuit board; 43: Second inductor; 44: First inductor; 45: Interface member; 46: Third circuit board; 52: Extension portion; 51: Pin member; 60: Spacer; 61: Heat-distributing layer; 62: Heat-insulating layer; 401: Current input terminal; 402: Current output terminal. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] In this embodiment, the charging device is, for example, a shell with a power bank, and the charging device accessories may be, for example, related accessories arranged on the shell with the power bank, and the accessories are, for example, a bracket arranged on the shell with the power bank.

[0033] In this embodiment, if Figures 1-4 As shown, an embodiment of the present invention provides a charging device 1. The charging device 1 includes, for example: a housing 10, a cover 20, a thermally conductive adhesive 30, an internal electronic component 40, and a pin 51.

[0034] The shell part 10 is formed with a cavity 101. The cover part 20 is connected with the shell part 10, and the cover part 20 is provided with a pin member 51 electrically connected with the internal electronic assembly 40. The heat-conducting glue part 30 is detachably arranged in the cavity 101, and the heat-conducting glue part 30 is integrally formed with the internal electronic assembly 40. Wherein, the heat-conducting glue part 30 and the internal electronic assembly 40 can be first integrally formed by injection molding, and then installed in the cavity 101. By first integrally forming the heat-conducting glue part 30 and the internal electronic assembly 40 by injection molding, the problem of gap between the heat-conducting glue part and the internal electronic assembly after assembly can be solved, and the convenience of assembly between the integrally formed heat-conducting glue part 30 and the internal electronic assembly 40 and the shell part 10 and the cover part 20 to form the charging device 1 can be improved. It is worth mentioning that, since the irregularly shaped product is easy to be damaged in the injection molding opening process, the injection mold is configured to make the shape of the integrally formed heat-conducting glue part 30 and the internal electronic assembly 40 approximately a cuboid shape.

[0035] In some embodiments, after the heat-conducting glue part 30 and the internal electronic assembly 40 are integrally formed by injection molding, the outer surface of the heat-conducting glue part 30 can be wrapped with a molding mold, which can be equivalent to a shell. Before the heat-conducting glue part is arranged in the cavity, if it is found that there is still a gap in the integrally formed structure, some heat-conducting glue can be injected to supplement the glue, so that the integrally formed structure will not form a gap.

[0036] The internal electronic component 40 includes a current input end 401 and a current output end 402, the current input end 401 is arranged to expose one end of the heat-conducting glue part 30 and is electrically connected with the pin member, and the current output end 402 is arranged to expose the other end of the heat-conducting glue part 30. Specifically, the charging device 1 provided in the embodiment of the utility model is, for example, a power adapter or a charging energy bar which can charge various electronic products (such as mobile phones, computers, tablets, portable temperature regulating devices, etc.). The pin member 51 is, for example, a power pin which is used to be inserted into a socket and to guide the current into the internal electronic component 40. The internal electronic component 40 includes, for example, a power management circuit, components as a part of the power management circuit, a circuit board which provides support and contacts for the power management circuit, an output interface which is used to output the current to the electronic product to be charged, etc. When the charging device 1 provided in the embodiment is used to charge the electronic product to be charged, the power pin is inserted into the socket, the input current reaches the internal electronic component 40 through the current input end 401, is adjusted and is output from the current output end 402 to the output interface, and then is output to the electronic product to be charged through the output interface to realize the charging. The shell part 10 is, for example, the main part of the charging device 1, the cover part 20 is, for example, the lower cover part of the charging device, the shell part 10 can be detachably linked with the cover part 20, the heat-conducting glue part 30 is, for example, a heat-conducting glue layer which can be integrally formed with the internal electronic component 40, and the heat-conducting glue layer and the internal electronic component 40 are integrally formed in a generally cuboid shape. In order to facilitate the electrical connection between the internal electronic component 40 and the pin member 51, the current input end which is arranged close to the cover part 20 of the internal electronic component 40 is arranged to expose the bottom end of the heat-conducting glue part 30 (such as the first end face 301 shown in the figure), since the mold for producing the heat-conducting glue is generally regular in shape, such as a cuboid, therefore one end of the internal electronic component 40 is arranged to expose the end face of the bottom surface of the heat-conducting glue part 30, the current input end 401 is, for example, an electrical contact point which can be arranged on one end of the internal electronic component 40, so that the electrical contact point exposes the outer surface of the heat-conducting glue part 30, thereby facilitating the electrical connection between the internal electronic component 40 and the pin member 51. Figure 5

[0037] As shown in the figure, the shell part 10 can be composed of, for example, an inner shell 102 and an outer shell 103, the outer shell 103 is made of a transparent material, and the inner shell 102 is made of a plastic material, and the outer shell 103 is further isolated from the internal electronic component 40 through the inner shell 102. Figure 9

[0038] ​​The embodiment is characterized in that the heat-conducting glue part 30 is integrally formed with the internal electronic component 40, and the heat-conducting glue part 30 is detachably arranged in the cavity 101, so that the internal electronic component 40 and the heat-conducting glue part 30 are integrally formed by injection molding, the current input end 401 and the current output end 402 of the internal electronic component 40 are respectively exposed on the surface of the heat-conducting glue part 30, that is, the electrical contact points of the internal electronic component 40 are exposed outside the heat-conducting glue part 30, so as to facilitate the electrical connection of the pin member 51, and the output end of the internal electronic component 40 is not arranged in the heat-conducting glue part 30, so as to facilitate the connection with the external electronic device, which can avoid the gap of the heat-conducting glue part 30 after the heat-conducting glue part 30 is integrally formed with the internal electronic component 40, and can also uniformly dissipate heat of the internal electronic component 40 through the heat-conducting glue part 30, and will not prevent the electrical connection between the internal electronic component 40 and the pin member 51, thereby preventing the charging device 1 from having the problem of poor contact.

[0039] As shown in Figure 3 , the internal electronic component 40 comprises a first circuit board 41 and an interface member 45, one end of the first circuit board 41 protrudes from the heat-conducting glue part 30 towards the surface of the cover part 20 and is provided with the current input end 401, that is, the current input end 401 is arranged on one end of the first circuit board 41 protruding from the surface of the heat-conducting glue part 30, the other end of the first circuit board 41 is connected with the interface member 45, and part of the interface member 45 is exposed on the surface of one end of the heat-conducting glue part 30 away from the cover part 20. The interface member 45 is, for example, an electrical connection interface, as shown in Figure 3 , the interface member 45 is, for example, two interfaces. The current input and output can be realized by arranging one circuit board, which can reduce the space of the cavity 101 in the shell part 10, and the internal electronic component 40 will not occupy much internal space, and the assembly steps of multiple circuit boards can be omitted.

[0040] As shown in Figure 2 and Figure 7 , the side of the cover part 20 towards the heat-conducting glue part 30 is provided with a clamping member 22, the clamping member 22 is respectively electrically connected with the pin member 51 and the current input end 401, and the clamping member 22 is clampingly connected with one end of the first circuit board 41. The clamping member 22 is, for example, a metal spring, when the shell part 10 is connected with the cover part 20, one end of the first circuit board 41 is clamped into the metal spring, so that the current input end 401 arranged on one end of the first circuit board 41 is in conductive connection with the metal spring, thereby realizing the electrical connection between the internal electronic component 40 and the pin member 51.

[0041] Further, the cover part 20 is provided with a blocking wall part 23 corresponding to the clamping part 22, the blocking wall part 23 is arranged adjacent to the clamping part 22, and the blocking wall part 23 is arranged extending towards the cavity 101; the shell part 10 is provided with a groove part 11 corresponding to the blocking wall part 23 on the inner wall of the side close to the second circuit board 42, and the groove part 11 is connected with the blocking wall part 23. The blocking wall part 23 is, for example, a protruding block, and the groove part 11 is, for example, a groove with a size suitable for the blocking wall part 23, and the blocking wall part 23 can be formed by extending the side of one side of the cover part 20 inwards to form a blocking wall structure, which can block the metal spring and meet the safety requirements, and also can allow the cover part 20 and the shell part 10 to be pre-positioned before ultrasonic welding.

[0042] As shown in Figure 3 and Figure 4 , the heat-conducting glue part 30 is provided with a groove part 31 at the end away from the cover part 20, and the groove part 31 is arranged around the edge of the interface part 45; the groove part 31 is, for example, a groove structure. By arranging the groove part 31, the heat-conducting glue part 30 and the internal electronic assembly 40 can be prevented from pouring into the interface part 45 of the internal electronic assembly 40 when they are integrally formed by injection molding.

[0043] As shown in Figures 3-6 , the internal electronic assembly 40 further includes, for example, a second circuit board 42 and a first inductor 44, the second circuit board 42 is arranged in the end of the heat-conducting glue part 30 away from the cover part 20, the first circuit board 41 is connected with the second circuit board 42 perpendicularly, the interface part 45 is adjacent to the first inductor 44, and the interface part 45 and the first inductor 44 are arranged on the second circuit board 42, and the groove part 31 is arranged around the edge of the interface part 45 and the first inductor 44. The first inductor 44 is, for example, a step-down inductor or a power inductor. As shown in Figure 3 and Figure 4 , the interface part 45 is, for example, two interfaces, which are arranged on the two sides of the first inductor 44 respectively. The first inductor 44 is exposed on the outside because the vertical distance between the surface of the first inductor 44 and the end of the interface part 45 is too small, and if the surface of the first inductor 44 is covered, the heat-conducting glue is easy to pour into the inside of the interface part 45, so the first inductor 44 and part of the interface part 45 are arranged to be exposed on the surface of the end of the heat-conducting glue part 30 away from the cover part 20. By arranging the first circuit board 41 and the second circuit board 42 perpendicularly to each other, the structure of the internal electronic assembly 40 can be further compact, and the miniaturization of the charging device 1 can be realized. By arranging the groove part 31 around the edge of the interface part 45 and the first inductor 44, the heat-conducting glue part 30 can be prevented from covering the surface of the first inductor 44, so that the heat-conducting glue is prevented from being easy to pour into the interface part 45.

[0044] Further, the first inductor 44 is exposed on the end surface of the heat-conducting glue part 30 away from the cover part 20, and the end surface of the second circuit board 42 is exposed on the end surface of the heat-conducting glue part 30 away from the cover part 20. And / or, the groove part 31 comprises a first groove part 311 and a second groove part 312, the interface part 45 is arranged in the first groove part 311, and the first inductor 44 is arranged in the second groove part 312; the distance between the side wall of the first groove part 311 and the interface part 45 is 1-3 mm. Figure 3 As described above, the number of the interface part 45 is two, and the corresponding first groove part 311 is also two, and the two first groove parts 311 are arranged on the two sides of the second groove part 312, respectively. The first groove part 311 and the second groove part 312 can be formed by arranging a blocking structure around the side edge of the interface part 45 and the first inductor 44 in the mold during injection molding, so that a groove structure is formed near the interface after molding, thereby forming a plurality of groove structures. By exposing the first inductor 44 on the surface of the heat-conducting glue part 30 and / or arranging a plurality of groove structures to limit the width of the first groove part, the heat-conducting glue part 30 and the internal electronic components 40 are prevented from being integrally molded into a structure, and the heat-conducting glue is prevented from being poured into the interface part 45.

[0045] As shown in Figure 5 And Figure 6 The internal electronic components 40 further comprise a second inductor 43, and the charging device 1 further comprises an extension part 52 connected with the first circuit board 41, the extension part 52 is exposed on the end surface of the heat-conducting glue part 30 close to the end of the cover part 20, and the second inductor 43 is arranged on the extension part 52. The extension part 52 is a protruding circuit board. Because the sizes of the electronic devices in the internal electronic components 40 are different, in order to be integrally molded with the heat-conducting glue part 30 into a module with a generally regular shape, part of the electronic devices in the internal electronic components 40 cannot be wrapped by the heat-conducting glue part. The extension part 52 can place the electronic devices in the internal electronic components 40 that cannot be wrapped by the heat-conducting glue part, for example, the second inductor 43 can be placed on the extension part 52, and cooperates with the cover part 20 to assist in positioning the heat-conducting glue module.

[0046] Further, as shown in Figure 6As shown, the internal electronic assembly 40 further comprises a third circuit board 46, which is connected to the first circuit board 41 and the second circuit board 42 respectively. The filter element can be arranged on the third circuit board 46, which is connected to the first circuit board 41 and the second circuit board 42 perpendicularly, that is, the second circuit board 42 can be arranged inside the top end of the heat-conducting adhesive part 30, and the first circuit board 41 and the third circuit board 46 can be arranged close to the inner walls of two adjacent side edges of the heat-conducting adhesive part 30 respectively. The extension part 52 is arranged on the third circuit board 46. One end of the first circuit board 41 is exposed on the first end surface 301 of the heat-conducting adhesive part 30. Due to the arrangement of the circuit elements, the second inductor 43 and the electrical contact point on the first circuit board 41 need to be separated, but due to the size of the internal space of the charging device 1, the second inductor 43 and the exposed part of the second circuit board 42 need to be arranged perpendicularly to each other, so that the second inductor 43 and the second circuit board 42 do not affect each other.

[0047] Further, the height of the extension part 52 exposed on the end surface of the heat-conducting adhesive part 30 close to the cover part 20 is 3-6 mm. The height of the extension part 52 exposed is set to 3-6 mm, so that the extension part 52 can provide sufficient space for mounting electronic devices that cannot be wrapped by the heat-conducting adhesive part, and the first end surface 301 of the heat-conducting adhesive part 30 will not cover the position of the second inductor 43.

[0048] As shown in Figure 7 As shown, the cover part 20 is provided with a fixing part 21 close to one end of the internal electronic assembly 40, and the fixing part 21 is connected to the extension part 52. And / or, the inner wall of the end of the shell part 10 away from the cover part 20 is provided with a limiting part 12, and the interface part 45 is arranged in the limiting part 12. The fixing part 21 can be a protruding structure, for example, which is arranged on the inner surface of the bottom end of the cover part 20 and protrudes towards the top end of the shell part 10. In this embodiment, the extension part is positioned in cooperation with the protruding structure, as shown in Figure 6As shown, the protruding structure is two, the middle of the two protruding structures is provided with a groove, and the extension is arranged in the groove, so as to be connected with the two protruding structures. In actual production, the end of the protruding structure in contact with the extension 52 will be melted in the last ultrasonic welding step and fixedly connected with the extension, so as to form the fixed connection of the internal electronic assembly 40 and the cover body 20, prevent the displacement of the internal electronic assembly 40 in the shell body 10, and thus cause the poor contact of the internal electronic assembly 40 and the pin member 51. The limiting piece 12 can be formed by the annular wall structure extending from the inner side of the top end of the shell body 10 to the cover body 20, and the interface piece 45 is arranged in the limiting piece 12, so as to fix the internal electronic assembly 40 in the shell body 10 and prevent the movement of the internal electronic assembly 40. By arranging the groove part 31, the heat-conducting glue part 30 and the internal electronic assembly 40 can be prevented from pouring into the interface piece 45 of the internal electronic assembly 40 when being integrally formed by injection molding.

[0049] Further, as shown in the drawings, Figures 8-9 Further, as shown in the drawings,

[0050] Further, the spacing part 60 comprises a heat uniformizing layer 61 and a heat insulating layer 62, the heat uniformizing layer 61 is in contact with the side wall of the heat-conducting glue part 30, and the heat insulating layer 62 is in contact with the inner surface of the shell body 10. The heat uniformizing layer 61 can be used for uniformly radiating the heat of the heat-conducting glue part 30, and the heat insulating layer 62 can be used for isolating the heat generated by the heat-conducting glue part 30 to prevent the heat of the shell body 10 from overheating.

[0051] In addition, it can be understood that the foregoing various embodiments are only exemplary descriptions of the present application, and under the premise that the technical features do not conflict, the structures are not contradictory, and the purpose of the application is not violated, the technical solutions of the various embodiments can be arbitrarily combined and used.

[0052] Finally, it should be noted that: the above examples are used to illustrate the technical solutions of the present application, but not limited to; although the present application is described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still be modified to the technical solutions recorded in the foregoing examples, or part of the technical features are replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A charging device (1), characterized in that, The utility model relates to a kind of electronic components, including: Internal electronic components (40); Shell portion (10), with cavity (101); Cover portion (20), with the shell portion (10) is connected, the cover portion (20) is equipped with with the internal electronic components (40) electrically connected pin piece (51); Thermal conductive glue portion (30), it is separably arranged in the cavity (101), and the thermal conductive glue portion (30) is integrally formed with the internal electronic components (40); Wherein, the internal electronic components (40) include current input end (401) and current output end (402), the current input end (401) is exposed to one end of thermal conductive glue portion (30) and is arranged, and with the pin piece (51) electrically connected, the current output end (402) is exposed to the other end of thermal conductive glue portion (30) and is arranged.

2. The charging device (1) according to claim 1, characterized in that The internal electronic components (40) include first circuit board (41) and interface piece (45), one end of the first circuit board (41) protrudes from thermal conductive glue portion (30) towards the surface of the cover portion (20) and is equipped with the current input end (401), the other end of the first circuit board (41) is connected with the interface piece (45), and at least part of the interface piece (45) is exposed to the end surface of the thermal conductive glue portion (30) away from the cover portion (20).

3. The charging device (1) according to claim 2, characterized in that The side of the cover portion (20) towards the thermal conductive glue portion (30) is provided with a clamping piece (22), the clamping piece (22) is clamped and connected with the first circuit board (41), and is electrically connected with the current input end (401).

4. The charging device (1) according to claim 3, characterized in that The cover portion (20) is provided with a blocking wall piece (23) corresponding to the clamping piece (22), and the blocking wall piece (23) is arranged to extend towards the cavity (101). The inner wall of the shell portion (10) near the first circuit board (41) is provided with a groove piece (11) corresponding to the blocking wall piece (23), and the groove piece (11) is connected with the blocking wall piece (23).

5. The charging device (1) according to claim 2, characterized in that The end of the thermal conductive glue portion (30) away from the cover portion (20) is provided with a groove portion (31), and the groove portion (31) surrounds the interface piece (45).

6. The charging device (1) according to claim 5, characterized in that The internal electronic components (40) further include a second circuit board (42) and a first inductor (44);The first circuit board (41) is connected perpendicularly with the second circuit board (42), the interface piece (45) is arranged adjacent to the first inductor (44) on the second circuit board (42), and the groove portion (31) surrounds the edge of the interface piece (45) and the first inductor (44).

7. The charging device (1) according to claim 6, characterized in that The end surface of the first inductor (44) away from the second circuit board (42) is exposed to the surface of the thermal conductive glue portion (30);And / or, The groove part (31) comprises a first groove part (311) and a second groove part (312), the first groove part (311) is arranged around the edge of the interface piece (45), the second groove part (312) is arranged around the edge of the first inductor (44), the distance between the side wall of the first groove part (311) and the interface piece (45) is 1-3mm.

8. The charging device (1) according to claim 6, characterized in that The internal electronic component (40) further comprises a second inductor (43), and the charging device (1) further comprises an extension part (52) connected with the first circuit board (41), the extension part (52) is exposed on the end surface of the heat-conducting adhesive part (30) near one end of the cover part (20), and the second inductor (43) is arranged on the extension part (52).

9. The charging device (1) according to claim 8, characterized in that The internal electronic component (40) further comprises a third circuit board (46), the third circuit board (46) is connected with the first circuit board (41) and the second circuit board (42) perpendicularly, and the extension part (52) is arranged on the third circuit board (46).

10. The charging device (1) according to claim 8, characterized in that The height of the extension part (52) exposed on the end surface of the heat-conducting adhesive part (30) near one end of the cover part (20) is 3-6mm.

11. The charging device (1) according to claim 8, characterized in that The cover part (20) is provided with a fixing piece (21) near one end of the internal electronic component (40), the fixing piece (21) is connected with the extension part (52) in a matched mode, and / or the inner wall of one end of the shell part (10) away from the cover part (20) is provided with a limiting piece (12), and the interface piece (45) is located in the limiting piece (12).

12. The charging device (1 ) according to any one of claims 1 -1 1, characterized in that The charging device (1) further comprises a spacing part (60), the spacing part (60) is arranged between the heat-conducting adhesive part (30) and the shell part (10), and the spacing part (60) is in abutment with the heat-conducting adhesive part (30) and the shell part (10) respectively.

13. The charging device (1) according to claim 12, characterized in that The spacing part (60) comprises a uniform heating layer (61) and a heat insulation layer (62), the uniform heating layer (61) is in contact connection with the side wall of the heat-conducting adhesive part (30), and the heat insulation layer (62) is in contact with the inner surface of the shell part (10).

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