Charging device

Abstract

The embodiment of the utility model provides a charging device, and the device comprises a first housing which is provided with a cavity, and the cavity is provided with an internal electronic assembly; the second shell is connected with the first shell, and the second shell is provided with a power supply pin electrically connected with the internal electronic component; the heat conduction support is located in the cavity, and the heat conduction support is in heat conduction connection with the internal electronic assembly and the second shell. According to the charging device provided by the embodiment of the invention, the problem that the heat dissipation effect is not ideal enough on the basis of miniaturization of the charging device can be solved.

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 fast charging technology, the charging device is required to provide a higher output function. Providing a higher output also means that the heat generated inside the charging device also increases. In order to pursue higher energy density, the charging device of the prior art is designed to be smaller and smaller. However, as the volume is reduced, the heat dissipation of the electronic components inside the charging device is more difficult than before.

[0003] Therefore, how to ensure good heat dissipation of the electronic components inside the charging device while taking into account efficient charging function and miniaturized design has become an urgent problem to be solved. Utility Model Content

[0004] Therefore, in order to overcome at least some of the defects and shortcomings in the prior art, an embodiment of the present utility model provides a charging device.

[0005] Specifically, on the one hand, an embodiment of the utility model provides a charging device, comprising: a first shell having a cavity, wherein the cavity is provided with an internal electronic component; a second shell connected to the first shell, wherein the second shell is provided with a power pin electrically connected to the internal electronic component; a heat-conductive bracket located in the cavity, and wherein the heat-conductive bracket is thermally conductively connected to the internal electronic component and the second shell, respectively.

[0006] In some embodiments, a first extension portion is disposed on the thermally conductive bracket, the internal electronic component includes a target heat dissipation element, the first extension portion extends toward the target heat dissipation element, and the first extension portion is thermally conductively connected to the target heat dissipation element.

[0007] In some embodiments, the target heat dissipation element includes a first circuit board and a rectifier chip, the first circuit board is connected to the second shell, the rectifier chip is arranged on the first circuit board, and the first extension portion is thermally connected to the rectifier chip.

[0008] In some embodiments, the rectifier chip is disposed on a side of the first circuit board close to an inner wall of the first shell, and the first extension portion extends to the rectifier chip and is in contact with and connected to the rectifier chip.

[0009] In some embodiments, the internal electronic component also includes a second circuit board and a filtering element, the second circuit board is connected to the first circuit board, the filtering element is arranged on the second circuit board, and the thermal conductive bracket is also provided with a second extension portion, and the second extension portion extends to the outer surface of the filtering element.

[0010] In some embodiments, the first circuit board is vertically connected to the second circuit board.

[0011] In some embodiments, the filter element includes a first capacitor and a second capacitor, and the thermally conductive bracket further includes a third extending portion, and the third extending portion extends from the second extending portion to between the first capacitor and the second capacitor.

[0012] In some embodiments, the third extension portion is perpendicular to the second extension portion, and the third extension portion has a first surface and a second surface that are oppositely arranged, the first surface is in contact with and connected to a side surface of the first capacitor, the second surface is in contact with and connected to a side surface of the second capacitor, and the second extension portion is in contact with and connected to end surfaces of the first capacitor and the second capacitor, respectively.

[0013] In some embodiments, the thermally conductive bracket includes a first end surface close to the second shell, the second shell includes a second end surface corresponding to the first end surface, and the first end surface is in contact with the second end surface.

[0014] In some embodiments, the heat-conducting bracket is provided with a protrusion, the protrusion is provided on the first end surface and protrudes toward the second shell body, the second end surface is correspondingly provided with a groove portion, and the protrusion is connected to the groove portion.

[0015] In some embodiments, the thermally conductive bracket is an annular structure; and / or the thermally conductive bracket and the second shell are separate structures.

[0016] In some embodiments, a fixing bracket is disposed on a side of the second shell close to the cavity, one end of the pin is connected to the fixing bracket, and the other end thereof extends through the second shell and is exposed on a side of the second shell away from the heat-conducting bracket.

[0017] As can be seen from the above, the charging device provided by the embodiment of the utility model is thermally connected to the internal electronic components in the first shell through a heat-conducting bracket, and the heat-conducting bracket is arranged in the cavity of the first shell. After the heat-conducting bracket is thermally connected to the internal electronic components, the heat is conducted out of the cavity through the second shell, so that the heat of the internal electronic components can be conducted from the cavity toward the second shell to the outside of the cavity, which can solve the problem of unsatisfactory heat dissipation effect on the basis of miniaturization of the charging device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0019] Figure 1 A schematic diagram of the structure of a charging device provided in the first embodiment of the present application.

[0020] Figure 2 for Figure 1 The schematic diagram of the exploded structure of the charging device is shown.

[0021] Figure 3 for Figure 1 A schematic diagram of the structure of the internal electronic components and the heat-conducting bracket in the charging device is shown.

[0022] Figure 4 for Figure 3 Schematic diagram of the decomposition shown.

[0023] Figure 5 for Figure 1 The schematic diagram of the exploded view of the second shell and the heat-conducting bracket in the charging device is shown.

[0024] Figure 6 for Figure 1 A schematic diagram of the structure of a heat-conducting bracket in a charging device is shown.

[0025] Figure 7 for Figure 1 A partial cross-sectional schematic diagram is shown.

[0026] Figure 8 A partial cross-sectional schematic diagram of a charging device provided in the second embodiment of the present application.

[0027] [Description of Reference Numerals]

[0028] 1: charging device; 10: first shell; 11: outer shell; 12: inner shell; 13: mounting hole; 101: cavity; 20: second shell; 21: groove portion; 22: fixing bracket; 23: accommodating groove; 201: second end surface; 30: heat-conducting bracket; 31: first extension portion; 32: second extension portion: 33: third extension portion; 34: raised portion; 301: first end surface; 331: first surface; 332: second surface; 40: internal electronic components; 41: target heat dissipation element; 411: first circuit board; 412: rectifier chip; 413: second circuit board; 414: filter element; 4141: first capacitor; 4142: second capacitor; 50: power pin. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments described in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the protection scope of the present invention.

[0030] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, top and bottom) are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0031] In the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0032] [First embodiment]

[0033] See also Figure 1-Figure 7 As shown, the utility model embodiment of the present application provides a charging device 1, and the charging device 1 includes, for example: a first shell 10, a second shell 20, a heat-conducting bracket 30, an internal electronic component 40 and a power pin 50. Figure 2 As shown, the first shell 10 includes, for example, an outer shell 11 and an inner shell 12, the outer shell 11 is sleeved outside the inner shell 12, and the first shell 10 has a cavity 101 and a mounting hole 13 connected to the cavity 101. In this embodiment, the cavity 101 is formed inside the inner shell 12, and the mounting hole 13 is also provided on the inner shell 12. Among them, the second shell 20 is connected to the first shell 10, the second shell 20 can be sealed with the first shell 10, and the second shell 20 is sealed with the first shell 10 to form the cavity 101. The heat-conducting bracket 30 is connected to the second shell 20 and is located in the cavity 101. The internal electronic component 40 is arranged in the cavity 101 and is thermally connected to the heat-conducting bracket 30. The power pin 50 is arranged on the second shell 20, one end of the power pin 50 is electrically connected to the internal electronic component 40 in the cavity 101, and the other end thereof extends through the second shell 20 and is exposed on the side of the second shell 20 away from the heat-conducting bracket 30.

[0034] Specifically, the charging device 1 provided in the embodiment of the utility model is, for example, a power adapter or a charging energy stick that can charge various electronic products (such as mobile phones, computers, tablets, portable thermostats, etc.). The power pin 50 is used to be inserted into a socket and conduct current to the internal electronic component 40. The internal electronic component 40 includes, for example, a power management circuit, components as a component of the power management circuit, a circuit board that provides support and contacts for the power management circuit, and an output interface for outputting current to the electronic product to be charged. When the charging device 1 provided in this embodiment is used to charge the electronic product to be charged, the power pin 50 is plugged into the socket, and the input current is adjusted by the internal electronic component 40 and output from the output interface to the electronic product to be charged to achieve charging. During charging, since the heat-conducting bracket 30 is thermally connected to the internal electronic component 40, and the heat-conducting bracket 30 is connected to the second shell 20, the heat generated by the internal electronic component 40 can be quickly conducted to the second shell 20 through the heat-conducting bracket 30, and the heat generated by the internal electronic component 40 can also be quickly conducted to the outside of the cavity 101. Figure 5 As shown, the second housing 20 has a receiving groove 23 for receiving the power pin 50 on one side away from the cavity 101. The power pin 50 is movably connected to the second housing 20. After charging is completed, the power pin 50 can be stored in the receiving groove, which is convenient for storing the charging device 1. The outer shell 11 is made of a transparent material, and the inner shell 12 is made of a plastic material. The outer shell 11 is isolated from the internal electronic components 40 by the inner shell 13.

[0035] In this embodiment, the heat conductive bracket 30 is thermally connected to the internal electronic component 40, and the heat conductive bracket 30 is arranged on the second shell 20. After the heat conductive bracket 30 is thermally connected to the internal electronic component 40, the heat is discharged to the outside of the cavity 101 through the second shell 10 connected to the heat conductive bracket 30, so that the heat of the internal electronic component 40 can be discharged, which can solve the problem that the heat dissipation effect is not ideal on the basis of the miniaturization of the charging device 1.

[0036] like Figure 2-Figure 4 As shown, the heat conductive bracket 30 is provided with a first extension portion 31, the first extension portion 31 extends toward the internal electronic component 40, and the first extension portion 31 is thermally connected to the internal electronic component 40. The internal electronic component 40 includes, for example, a target heat dissipation element 41, and the target heat dissipation element 41 refers to an electronic component that generates high heat when the charging device 1 is working, such as a transformer, a capacitor, a chip, etc. The first extension portion 31 is thermally connected to the target heat dissipation element 41, so as to facilitate the directional heat dissipation of the target heat dissipation element 41.

[0037] Further, the target heat dissipation element 41 includes, for example, a first circuit board 411 and a rectifier chip 412, wherein the first circuit board 411 is connected to the second housing 20. The rectifier chip 412 is arranged on the first circuit board 411, and the first extension portion 31 extends to the rectifier chip 412 and is thermally connected to the rectifier chip 412. In the present application, the internal electronic components 40 in the charging device 1 will generate heat when working, but some electronic components emit relatively high heat when working, that is, high-heat electronic devices. The rectifier chip 412 in the present application belongs to a high-heat electronic device. When the charging device 1 is working, the power pin 50 is inserted into the socket to introduce the alternating current into the internal electronic component 40, and then the alternating current is rectified and filtered by the rectifier chip 412, and the direction of the current is adjusted. By setting the first extension portion 31 to extend to the rectifier chip 412, the heat on the rectifier chip 412 can be quickly exported to the second housing 20 through the first extension portion 31, so as to achieve the purpose of directional heat dissipation.

[0038] Specifically, Figure 3 and Figure 4 As shown, the rectifier chip 412 is arranged on the side of the first circuit board 411 close to the inner wall of the first housing 10, and the first extension portion 31 extends to the rectifier chip 412 and is in contact with and connected to the rectifier chip 412. By arranging the rectifier chip 412 on the side of the first circuit board 411 close to the inner wall of the first housing 10, it is more convenient to conduct the heat of the rectifier chip to the outside of the cavity through the heat-conducting bracket 30, thereby achieving the purpose of further directional heat dissipation and heat conduction.

[0039] Further, the target heat dissipation element 41 also includes, for example, a second circuit board 413 and a filter element 414. The second circuit board 43 is connected to the first circuit board 41, and the second circuit board 413 is connected to the second shell 20. The first circuit board 411 and the second circuit board 413 are used to integrate the inner wall electronic component 40 into a whole, so that it is easy to assemble it on the second shell 20 and connect it to the heat conduction support 30. At the same time, the first circuit board 411 and the second circuit board 413 are provided, so that the contact area between the heat conduction support 30 and the first circuit board 411 and the second circuit board 413 can be increased. The filter element 414 is provided on the second circuit board 413, and the heat conduction support 30 is also provided with a second extension portion 32, and the second extension portion 32 extends to the outer surface of the filter element 414. The filter element 414 is, for example, a component in the charging device 1 responsible for converting high-voltage power. By extending the second extension portion 32 to the outer surface of the filter element 414, the heat generated by the filter element 414 can be quickly taken away to the second shell 20 and discharged outside the cavity 10.

[0040] In this embodiment, the first circuit board 411 and the second circuit board 413 may be disposed perpendicularly to each other, and the structure of the internal electronic component 40 may be made more compact by the perpendicular arrangement.

[0041] Furthermore, if Figure 3 and Figure 4 As shown, the filter element 414 includes a first capacitor 4141 and a second capacitor 4142, and the first capacitor 4141 and the second capacitor 4142 are arranged on the second circuit board 413 at intervals, and the heat-conducting bracket 30 also includes a third extension portion 33, and the third extension portion 33 extends from the second extension portion 32 to between the first capacitor 4141 and the second capacitor 4142. The first capacitor 4141 and the second capacitor 4142 are, for example, electrolytic capacitors responsible for converting high-voltage power in the charging device 1. By arranging the third extension portion 33 between the gap between the first capacitor 4141 and the second capacitor 4142, the heat generated by the first capacitor 4141 and the second capacitor 4142 can be further quickly conducted to the outside of the cavity 101, thereby achieving the purpose of rapid heat dissipation.

[0042] Furthermore, if Figure 3-Figure 5 As shown, the third extension portion 33 is perpendicular to the second extension portion 32, and the third extension portion 33 has a first surface 331 and a second surface 332 arranged opposite to each other, the first surface 331 is in contact with the side surface of the first capacitor 4141, the second surface 332 is in contact with the side surface of the second capacitor 4142, and the second extension portion 32 is in contact with the end surfaces of the first capacitor 4141 and the second capacitor 4142. By arranging the second extension portion 32 and the third extension portion 33 to be in contact with the surfaces of the first capacitor 4141 and the second capacitor 4142, respectively, the purpose of further heat dissipation and heat conduction of the filter element 44 can be achieved.

[0043] like Figure 6 As shown, the heat-conducting bracket 30 includes a first end surface 301 close to the second shell 20, the second shell 20 includes a second end surface 201 corresponding to the first end surface 301, and the first end surface 301 is in contact with and connected to the second end surface 201. The heat-conducting bracket 30 can be aligned with and fixedly connected to the second shell 20 by the first end surface 301 being in contact with and connected to the second end surface 201.

[0044] In this embodiment, the heat-conducting bracket 30 is an annular structure; and / or the heat-conducting bracket 30 and the second shell 20 are separate structures.

[0045] In this embodiment, by configuring the heat-conducting bracket 30 to be annular in structure, the heat absorbed by the heat-conducting bracket 30 can be conducted in an annular direction, thereby achieving a rapid heat-distributing effect and avoiding the phenomenon of being too hot due to local excessive temperature.

[0046] The heat-conducting bracket 30 and the second shell 20 are designed to be separated, so that the heat-conducting bracket 30 can be produced separately by injection molding, reducing the complexity of the injection mold and improving production efficiency. In some embodiments, the heat-conducting bracket 30 can be fixedly connected to the second shell 20 by means of adhesive, ultrasonic welding, etc. In other embodiments, the heat-conducting bracket 30 and the second shell 20 are detachably connected, which can facilitate the assembly and disassembly between the heat-conducting bracket 30 and the second shell 20. In addition, when the charging device 1 is upgraded, that is, the arrangement of the internal electronic components 40 changes, only the heat-conducting bracket 30 that matches it can be replaced, thereby reducing the production cost of the charging device 1.

[0047] Furthermore, if Figure 6 As shown, the heat-conducting bracket 30 is provided with a protrusion 34 protruding toward the second shell, the protrusion 34 is provided on the first end surface 301, and the second end surface 201 is correspondingly provided with a groove 21, and the protrusion 34 is connected to the groove 21. In this embodiment, the heat-conducting bracket is, for example, a bracket in an annular shape, and the annular shape is hollow, and the hollow part is used to set the internal electronic component 40, that is, the heat-conducting bracket 30 can be sleeved on the outer side of the internal electronic component 40. Since the heat-conducting bracket 30 is annular, its first end surface 201 in contact with the second shell 20 is similar to a hollow rectangle, and its heat conduction area is fixed. The protrusion 34 is provided on the heat-conducting bracket 30, which is equivalent to increasing the contact area with the second shell, that is, increasing the heat conduction connection area, so that the heat-conducting bracket 30 can transfer more heat to the second shell 20 and then discharge it from the second shell 20. In addition, the arrangement of the protrusion 34 and the groove 21 can facilitate the assembly of the heat-conducting bracket 30 and the second shell 20 , and can also play a fool-proof effect to avoid assembly failure.

[0048] In a preferred embodiment of this embodiment, if Figure 7 As shown, the outer surface of the heat-conducting bracket 30 is inclined from all sides toward the center, and the outer surface of the second shell 20 is also inclined from all sides toward the center. Through such an arrangement, the heat-conducting bracket 30 and the second shell 20 can be more conveniently assembled with the first shell 10, so that the heat-conducting bracket 30 can be conveniently assembled into the cavity 101.

[0049] The heat-conducting bracket 30 and the second shell 20 may be, for example, heat-conducting material pieces. That is, the heat-conducting bracket 30 and the second shell 20 may be made of heat-conducting material. The heat-conducting material may be, for example, a heat-conducting material in the prior art. The heat-conducting material may be, for example, a material with super-strong heat-conducting properties, which can transfer heat at an extremely fast speed, thereby achieving the effect of rapid heat conduction through the heat bracket 30 and the second shell 20.

[0050] Furthermore, if Figure 6 As shown, a fixing bracket 22 is disposed on one side of the second shell 20 close to the cavity 101 , and one end of the power pin 50 electrically connected to the internal electronic component 40 is connected to the fixing bracket 22 .

[0051] [Second embodiment]

[0052] In this embodiment, the structure of the charging device is substantially the same as that of the charging device 1 in the first embodiment, except that the outer surface of the heat-conducting bracket 30 is flush with the outer surface of the second shell 20.

[0053] Specifically, Figure 8 As shown, the outer surface of the heat-conducting bracket 30 is flush with the outer surface of the second shell 20, and the outer surfaces of the heat-conducting bracket 30 and the second shell 10 are flush, which can facilitate the assembly of the heat-conducting bracket 30 and the second shell 10. The heat-conducting bracket 30 and the second shell 10 can be assembled first, and then the assembled combination of the heat-conducting bracket 30 and the second shell 10 can be assembled into the cavity 101, thereby improving the assembly efficiency.

[0054] In addition, it can be understood that the aforementioned embodiments are only exemplary descriptions of the present invention. Under the premise that the technical features do not conflict, the structures do not contradict, and the purpose of the present invention is not violated, the technical solutions of the various embodiments can be arbitrarily combined and used in combination.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A charging device (1), characterized in that: include: A first housing (10) having a cavity (101), wherein the cavity (101) is provided with an internal electronic component (40); A second housing (20) connected to the first housing (10), the second housing (20) being provided with a power pin (50) electrically connected to the internal electronic component (40); The heat-conducting bracket (30) is located in the cavity (101), and the heat-conducting bracket (30) is respectively connected to the internal electronic component (40) and the second shell (20) by thermal conduction.

2. The charging device (1) according to claim 1, characterized in that: The heat-conducting bracket (30) is provided with a first extension portion (31), the internal electronic component (40) comprises a target heat dissipation element (41), the first extension portion (31) extends towards the target heat dissipation element (41), and the first extension portion (31) is thermally conductively connected to the target heat dissipation element (41).

3. The charging device (1) according to claim 2, characterized in that: The target heat dissipation element (41) comprises a first circuit board (411) and a rectifier chip (412), wherein the first circuit board (411) is connected to the second housing (20), the rectifier chip (412) is arranged on the first circuit board (411), and the first extension portion (31) is thermally conductively connected to the rectifier chip (412).

4. The charging device (1) according to claim 3, characterized in that: The rectifier chip (412) is arranged on a side of the first circuit board (411) close to the inner wall of the first shell (10), and the first extension portion (31) extends to the rectifier chip (412) and is in contact with and connected to the rectifier chip (412).

5. The charging device (1) according to claim 3, characterized in that: The target heat dissipation element (41) further comprises a second circuit board (413) and a filter element (414), wherein the second circuit board (413) is connected to the first circuit board (411); the filter element (414) is arranged on the second circuit board (413), and the heat conductive bracket (30) is further provided with a second extension portion (32), wherein the second extension portion (32) extends to the outer surface of the filter element (414).

6. The charging device (1) according to claim 5, characterized in that: The first circuit board (411) is vertically connected to the second circuit board (413).

7. The charging device (1) according to claim 5, characterized in that: The filter element (414) comprises a first capacitor (4141) and a second capacitor (4142), and the heat-conducting bracket (30) further comprises a third extension portion (33), wherein the third extension portion (33) extends from the second extension portion (32) to between the first capacitor (4141) and the second capacitor (4142).

8. The charging device (1) according to claim 7, characterized in that: The third extension portion (33) is perpendicular to the second extension portion (32), and the third extension portion (33) has a first surface (331) and a second surface (332) that are arranged opposite to each other, the first surface (331) is in contact with and connected to a side surface of the first capacitor (4141), the second surface (332) is in contact with and connected to a side surface of the second capacitor (4142), and the second extension portion (32) is in contact with and connected to end surfaces of the first capacitor (4141) and the second capacitor (4142), respectively.

9. The charging device (1) according to claim 1, characterized in that: The heat-conducting bracket (30) comprises a first end surface (301) close to the second shell (20), the second shell (20) comprises a second end surface (201) corresponding to the first end surface (301), and the first end surface (301) is in contact with and connected to the second end surface (201).

10. The charging device (1) according to claim 9, characterized in that: The heat-conducting bracket (30) is provided with a protrusion (34), which is arranged on the first end surface (301) and protrudes toward the second shell (20), and the second end surface (201) is correspondingly provided with a groove (21), and the protrusion (34) is connected to the groove (21).

11. The charging device (1) according to claim 1, characterized in that: The heat-conducting support (30) is an annular structure; and / or the heat-conducting support (30) and the second shell (20) are separate structures.

12. The charging device (1) according to any one of claims 1 to 11, characterized in that: A fixing bracket (22) is provided on a side of the second shell (20) close to the cavity (101); one end of the power pin (50) is connected to the fixing bracket (22), and the other end thereof extends through the second shell (20) and is exposed on a side of the second shell (20) away from the heat-conducting bracket (30).

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