A charging device

Abstract

This application relates to a charging device, including a housing, a coil module, and a charging module. The housing has a cavity and a first mounting slot. The housing also includes a heat insulation component located between the cavity and the first mounting slot. The coil module is mounted in the first mounting slot, and the charging module is mounted in the cavity and electrically connected to the coil module, enabling the charging module to supply power to the coil module, thereby generating current within the coil module. Electronic devices such as smartwatches come into contact with the coil module, allowing the charging device to wirelessly charge the electronic devices via electromagnetic induction. The heat insulation component, located between the coil module and the charging module, reduces the possibility of heat generated by the charging module being conducted to the coil module during charging, thus lowering the temperature of the electronic device during charging and improving the charging efficiency of the charging device.

Description

Technical Field

[0001] This application relates to the field of electronic devices, and more particularly to a charging device. Background Technology

[0002] With the development of technology, many smart electronic devices now feature wireless charging, allowing them to charge their batteries wirelessly. The charging device includes a coil module; when the smart electronic device is brought close to the coil module, it is charged through electromagnetic induction. The charging device also includes electronic components such as transformers and capacitors. During operation, these components generate significant heat. Existing charging devices, due to the heat generated by these components, raise the temperature of the smart electronic device. When the temperature reaches a set threshold, the charging power of the device decreases. Utility Model Content

[0003] In view of this, this application provides a charging device to solve the problem of temperature rise and charging power reduction during the charging process of intelligent electronic devices.

[0004] This application provides a charging device, the charging device comprising:

[0005] The housing has a cavity and a first mounting groove, and the housing further includes a heat insulation element located between the cavity and the first mounting groove;

[0006] A coil module, wherein the coil module is installed in the first mounting slot;

[0007] A charging module is installed inside the cavity and is electrically connected to the coil module.

[0008] In one possible embodiment, the coil module is tilted, and the angle between the plane on which the coil module is located and the plane on which the bottom surface of the outer casing is located is less than or equal to 45°.

[0009] In one possible embodiment, the heat insulation element is tilted, and the coil module is mounted on the side of the heat insulation element away from the cavity.

[0010] In one possible embodiment, the coil module includes a cover plate, a magnetic component, a magnetic shielding component, and a coil. The magnetic shielding component is provided with a receiving groove for accommodating the magnetic component and the coil. One side of the magnetic shielding component with the receiving groove is connected to the cover plate, and the cover plate is connected to the side wall of the first mounting groove.

[0011] In one possible embodiment, the charging device includes a heat sink mounted in the first mounting slot, with one end of the heat sink protruding from the first mounting slot and surrounding the coil module.

[0012] In one possible embodiment, the heat sink has a side plate and a bottom plate, the side plate and the bottom plate forming a second mounting groove, the coil module is mounted in the second mounting groove, and the outer surface of the side plate is connected to the inner wall of the first mounting groove.

[0013] In one possible embodiment, the coil module includes a second circuit board, which is electrically connected to the charging module;

[0014] The second circuit board is located on the side of the heat insulation component away from the charging module, or the second circuit board is located on the side of the heat insulation component closer to the charging module.

[0015] In one possible embodiment, the charging module includes a first circuit board and a plurality of electronic devices, some of which are mounted on the side of the first circuit board closer to the coil module, and others are mounted on the side of the first circuit board away from the coil module.

[0016] In one possible embodiment, the first circuit board includes a first end and a second end, and the spacing between the coil module and the first circuit board gradually increases along the direction from the first end to the second end; the electronic device includes a transformer and a high-voltage electrolytic capacitor, the transformer and the high-voltage electrolytic capacitor being located near the second end.

[0017] In one possible embodiment, the inner wall of the cavity is provided with a plurality of protrusions, which are spaced apart circumferentially along the cavity and abut against the side wall of the first circuit board.

[0018] In one possible embodiment, the charging device includes a connector electrically connected to the charging module; the electronic components include a transformer and a high-voltage electrolytic capacitor, and the connector is located on the side of the first circuit board away from the transformer and the high-voltage electrolytic capacitor.

[0019] In one possible embodiment, the housing includes a shell and a bottom cover, the coil module is mounted on the shell, and the bottom cover is located on the side of the shell away from the coil module; the cross-sectional area of ​​the shell gradually decreases along the direction away from the bottom cover, and the cross-section of the end of the shell away from the bottom cover is arc-shaped.

[0020] In one possible embodiment, a pin is provided on the side of the bottom cover away from the housing, and an insulating element is provided between the pin and the charging module.

[0021] In one possible embodiment, the pin is rotatably mounted to the bottom cover, and when the pin is retracted, it rotates away from the coil module.

[0022] This application relates to a charging device, including a housing, a coil module, and a charging module. The housing has a cavity and a first mounting slot. The housing also includes a heat insulation component located between the cavity and the first mounting slot. The coil module is mounted in the first mounting slot, and the charging module is mounted in the cavity and electrically connected to the coil module, enabling the charging module to supply power to the coil module, thereby generating current within the coil module. Electronic devices such as smartwatches come into contact with the coil module, allowing the charging device to wirelessly charge the electronic devices via electromagnetic induction. The heat insulation component, located between the coil module and the charging module, reduces the possibility of heat generated by the charging module being conducted to the coil module during charging, thus lowering the temperature of the electronic device during charging and improving the charging efficiency of the charging device. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of the charging device provided in the embodiments of this application;

[0025] Figure 2 In one embodiment Figure 1 A cross-sectional view along the AA direction;

[0026] Figure 3 In another embodiment Figure 1 A cross-sectional view along the AA direction;

[0027] Figure 4 An exploded view of the charging device provided in the embodiments of this application;

[0028] Figure 5 This is a schematic diagram of the structure of the magnetic component, the magnetic shielding component, and the coil provided in the embodiments of this application;

[0029] Figure 6 A cross-sectional view of the housing provided in an embodiment of this application.

[0030] Reference numerals: 1 - casing;

[0031] 11-Cavity;

[0032] 12-First mounting slot;

[0033] 13-Protrusion;

[0034] 2-Bottom cover;

[0035] 3-Coil module;

[0036] 31-Second circuit board;

[0037] 32-Cover plate;

[0038] 33 - Magnetic components;

[0039] 34 - Magnetic shielding components;

[0040] 341 - First receiving tank;

[0041] 342 - Second receiving tank;

[0042] 35-coil;

[0043] 4-Charging module;

[0044] 41-First circuit board;

[0045] 42-Electronic devices;

[0046] 421 - Transformer;

[0047] 422 - High-voltage electrolytic capacitor;

[0048] 423 - Low-voltage solid capacitor;

[0049] 424 - Main control chip; 5 - Heat insulation component;

[0050] 6-Heat dissipation components;

[0051] 61 - Second mounting slot;

[0052] 62-Side panel;

[0053] 63-Base plate;

[0054] 64-Positioning protrusion;

[0055] 65-First connecting part;

[0056] 66-Second connector; 7-Plug-in component;

[0057] 8-Pin;

[0058] 9-Insulating components. Detailed Implementation

[0059] To better understand the technical solution of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0060] It should be understood that the described embodiments are merely some, not all, of the embodiments in this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0061] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0062] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0063] like Figures 1 to 4 As shown, this application provides a charging device including a housing, a coil module 3, a charging module 4, and a heat insulation component 5. The housing has a cavity 11 and a first mounting groove 12. The housing also includes a heat insulation component 5, which is located between the cavity and the first mounting groove 12. The coil module 3 is installed in the first mounting groove 12, and the charging module 4 is installed in the cavity 11 and electrically connected to the coil module 3. The heat insulation component 5 is disposed between the coil module 3 and the charging module 4.

[0064] The charging module 4 is connected to an external power source, and the coil module 3 is electrically connected to the charging module 4, generating a current within the coil module 3. When electronic devices such as smartwatches come into contact with the coil module 3, the charging device can wirelessly charge the devices through electromagnetic induction. During operation, the temperature of the charging module 4 rises, and this heat is conducted to the electronic devices through the coil module 3. When the temperature of the electronic device reaches a threshold, the charging efficiency decreases, leading to longer charging times. By placing a heat insulation component 5 between the coil module 3 and the charging module 4, the possibility of heat from the charging module 4 being conducted to the coil module 3 is reduced, thereby lowering the temperature of the electronic devices during charging and improving the charging efficiency of the charging device.

[0065] The outer casing includes a housing 1 and a bottom cover 2. The coil module 3 is mounted on the housing 1. The bottom cover 2 is located at the end of the housing 1 away from the coil module 3. Along the direction away from the bottom cover 2, the cross-sectional area of ​​the housing 1 gradually decreases, and the cross-section of the end of the housing 1 away from the bottom cover 2 is arc-shaped, which reduces the size of the charging device and makes it more portable. For example, in electronic devices such as smartwatches, the charging position of the electronic device is provided with structures such as watch straps on both sides. The coil module 3 is located on the side of the housing 1 away from the bottom cover 2, and the cross-sectional area of ​​the housing 1 gradually decreases along the direction away from the bottom cover 2. This reduces the structure around the coil module 3, thereby reducing the possibility of interference between the housing 1 and the watch strap or other structures, and improving the stability during charging.

[0066] like Figure 3 As shown, in one possible embodiment, the coil module 3 is tilted, and the angle between the plane where the coil module 3 is located and the plane where the bottom surface of the outer casing is located is less than or equal to 45°.

[0067] Generally, when a charging device charges an electronic device, the side with the bottom surface of the casing is placed on a flat surface. In this case, the angle between the coil module 3 and the horizontal plane is less than or equal to 45°. When charging the electronic device, the device is placed on the side of the coil module 3 furthest from the casing 1, with the angle between the coil module 3 and the horizontal plane less than or equal to 45°. This reduces the possibility of the electronic device slipping. If the angle between the coil module 3 and the horizontal plane is greater than 45°, the electronic device is more likely to slip off the surface of the coil module 3 under the influence of gravity. The electronic device has a screen on one side. During charging, the side of the electronic device without the screen contacts the coil module 3, with the angle between the coil module 3 and the horizontal plane less than or equal to 45°, allowing the user to view the screen of the electronic device while charging.

[0068] like Figure 5 As shown, in one possible embodiment, the coil module 3 includes a cover plate 32, a magnetic component 33, a magnetic shielding component 34, and a coil 35. The magnetic shielding component 34 is provided with a receiving groove for accommodating the magnetic component 33 and the coil 35. The receiving groove includes a first receiving groove 341 and a second receiving groove 342. The second receiving groove 342 is arranged around the first receiving groove 341. The magnetic component 33 is disposed in the first receiving groove 341, and the coil 35 is disposed in the second receiving groove 342. The side of the magnetic shielding component 34 with the receiving groove is connected to the cover plate 32.

[0069] When the charging device charges the electronic device, current flows through the coil 35, wirelessly charging the electronic device through electromagnetic induction. The magnetic component 33 and the coil 35 are respectively placed in the first receiving groove 341 and the second receiving groove 342 of the magnetic shielding component 34. This reduces the possibility of the magnetic component 33 disturbing the magnetic field generated by the coil 35, thus improving the stability of the charging process. The side of the electronic device without a screen has a metal material such as iron, nickel, or cobalt that can be attracted by a magnet. The magnetic component 33 can attract the electronic device, allowing it to be placed in the coil module 3, reducing the possibility of the electronic device slipping. The cover plate 32 in the coil module 3 covers the first receiving groove 341 and the second receiving groove 342 in the magnetic shielding component 34, separating the electronic device from the magnetic component 33 and the coil 35. This reduces the possibility of the electronic device damaging the magnetic component 33 and the coil 35, and also reduces the possibility of the magnetic shielding component 34 scratching the electronic device.

[0070] The side of the cover plate 32 away from the magnetic shield 34 may have a groove or other structure, depending on the shape of the electronic device, to increase the contact area between the electronic device and the cover plate 32, making the electronic device fit more tightly against the cover plate 32 and reducing the possibility of the electronic device slipping. The side of the cover plate 32 away from the magnetic shield 34 may also have a pattern or anti-slip coating, or other structure to increase the surface friction of the cover plate 32, to further reduce the possibility of the electronic device slipping.

[0071] like Figure 4 As shown, in one possible embodiment, the coil module 3 is mounted in the first mounting groove 12, and the surface of the coil module 3 protrudes from the cavity 11, facilitating contact between the electronic device and the coil module 3, reducing the distance between the electronic device and the coil module 3, and thus improving charging efficiency. The heat insulation component 5 is integrally formed with the outer shell, and the heat insulation component 5 is inclined. The coil module 3 is mounted on the side of the heat insulation component 5 away from the cavity 11. The coil module 3 is fixed to the surface of the heat insulation component 5, for example, by thermally conductive adhesive. While providing heat insulation, the heat insulation component 5 also supports and positions the inclined coil module 3.

[0072] The heat insulation component 5 is integrally formed with the housing 1, which reduces airflow between the first mounting groove 12 and the cavity, thereby reducing heat conduction from the cavity 11 to the first mounting groove 12 and lowering the possibility of temperature rise in the coil module 3. The heat insulation component 5 is inclined; preferably, the inclination angle of the heat insulation component 5 is the same as the inclination angle of the coil module 3, so that the bottom wall of the first mounting groove 12 is parallel to the coil module 3, facilitating the installation of the coil module 3 in the first mounting groove 12.

[0073] like Figure 2As shown, in one possible embodiment, the cover plate 32 and the side wall of the first mounting groove 12 can be fixed by means of adhesive, snap-fit, etc., so that the coil module 3 is directly fixed in the first mounting groove 12, and there is a gap between the coil module 3 and the bottom wall of the first mounting groove 12, which can reduce the possibility of heat in the cavity 11 being conducted to the coil module 3.

[0074] like Figure 3 and Figure 4 As shown, in one possible embodiment, the charging device includes a heat sink 6, a coil module 3 is installed in the heat sink 6, and the heat sink 6 is installed in the first mounting slot 12.

[0075] The heat sink 6 includes a second mounting groove 61. The inner wall of the second mounting groove 61 is provided with positioning protrusions and snap-fit ​​parts. The cover plate 32 is correspondingly provided with positioning grooves and snap-fit ​​parts, allowing the coil module 3 to be fixed within the second mounting groove 61 via the cover plate 32. The cover plate 32 and the heat sink 6 can also be fixedly connected by adhesive or other methods, which are not limited here. The outer surface of the second mounting groove 61 and the inner wall of the first mounting groove 12 are provided with corresponding snap-fit ​​structures, allowing the heat sink 6 to be fixedly installed within the first mounting groove 12. The heat sink 6 and the first mounting groove 12 can also be fixedly connected by adhesive or other methods, which are not limited here.

[0076] The heat sink 6 is installed in the first mounting slot 12. The heat sink 6 has a side plate 62 and a bottom plate 63, which together form a second mounting slot 61. The coil module 3 is installed in the second mounting slot 61. The inner surface of the side plate 62 is provided with multiple positioning protrusions 64 and multiple first snap-fit ​​parts 65. The cover plate 32 is provided with positioning structures and snap-fit ​​structures corresponding to the positioning protrusions 64 and first snap-fit ​​parts 65 on the inner surface of the side plate 62, so that the cover plate 32 can be installed in the second mounting slot 61. The outer surface of the side plate 62 is provided with a second snap-fit ​​part 66, and the inner wall of the first mounting slot 12 is provided with a snap-fit ​​structure corresponding to the second snap-fit ​​part 66, so that the heat sink can be installed in the first mounting slot 12. The bottom plate 63 of the heat sink 6 can separate the coil module 3 and the heat insulation component 5, thereby improving the heat insulation effect between the coil module 3 and the charging module 4 and reducing the temperature of the coil module 3 during charging.

[0077] In one possible embodiment, the end of the heat sink 6 protrudes from the first mounting groove 12 and is disposed around the coil module 3. The portion of the heat sink 6 protruding from the cavity 11 communicates with the cavity 11.

[0078] The part of the heat sink 6 that connects to the cavity 11 can be made of a material with a high thermal conductivity, so that the heat inside the cavity 11 can be discharged through the heat sink 6 to reduce the temperature inside the cavity 11, thereby reducing the possibility of the temperature inside the cavity 11 being conducted to the coil module 3.

[0079] In one possible embodiment, the portion of the heat sink 6 that communicates with the cavity can be a mesh structure, and a breathable and waterproof membrane is provided on the mesh structure.

[0080] The heat sink 6 has a mesh structure, which allows the cavity 11 to communicate with the external environment, enabling the high-temperature gas inside the cavity 11 to be discharged through the heat sink 6, thereby reducing the temperature inside the cavity 11. The waterproof and breathable membrane can improve the waterproof effect of the charging device, reduce the possibility of water entering the cavity 11, reduce the possibility of short circuit in the charging module 4, and help improve the safety of the charging module.

[0081] The portion of the heat sink 6 protruding from the first mounting groove 12 can be provided with a glossy layer. The coil module 3 is located within the area enclosed by the glossy layer, making the position of the coil module 3 more obvious and easier to identify, and also making the charging device more aesthetically pleasing.

[0082] In one possible embodiment, the coil module 3 further includes a second circuit board 31, which is connected to the charging module 4 so that the charging module 4 can supply power to the coil 35 through the second circuit board 31.

[0083] In one possible embodiment, the second circuit board 31 is integrated with the coil module 3 on the same side of the heat insulation member 5, located on the side of the heat insulation member 5 away from the charging module 4.

[0084] The second circuit board 31 and the coil 35 are installed on the same side of the heat insulation component 5, which facilitates the electrical connection between the second circuit board 31 and the coil 35, reduces the difficulty of installing the second circuit board 31, and improves the assembly efficiency of the charging device.

[0085] like Figure 4 As shown, in one possible embodiment, the second circuit board 31 is disposed separately from the coil 35. The coil 35 is located on the side of the heat insulation member 5 away from the charging module 4, and the second circuit board 31 is located on the side of the heat insulation member 5 close to the charging module 4. Both the second circuit board 31 and the charging module 4 are disposed in the cavity 11.

[0086] The second circuit board 31 is electrically connected to the charging module 4. Both the second circuit board 31 and the charging module 4 are housed within the cavity 11, facilitating their interconnection. The charging module 4 supplies power to the coil 35 via the second circuit board 31. During operation, the second circuit board 31 also generates heat. By placing the second circuit board 31 within the cavity 11 and separating it from the coil 35 using the heat insulation component 5, the possibility of heat generated by the second circuit board 31 being conducted to the coil 35 is reduced. This helps lower the temperature of the coil 35 during charging, thereby improving the charging efficiency of the charging device for electronic devices.

[0087] like Figure 4As shown, in one possible embodiment, both the heat insulation component 5 and the heat dissipation component 6 are provided with connection holes to allow wires to pass through, so that the coil module 3 can be electrically connected to the second circuit board 31 inside the cavity 11, or the second circuit board 31 can be electrically connected to the charging module 4 inside the cavity 11.

[0088] In one possible embodiment, the heat insulation component 5 and the heat sink 6 are provided with spring pins. One end of the spring pin protrudes from the inner wall of the heat insulation component 5 or the heat sink 6 and can be connected to the coil module 3 or the second circuit board 31 integrated into the coil module 3. The other end of the spring pin is electrically connected to the charging module 4 or the second circuit board 31 disposed in the cavity 11. When installing the coil module 3, it is sufficient for the coil module 3 to contact the spring pin, which can reduce the installation difficulty of the charging device and completely separate the first mounting slot 12 and the cavity 11, reducing the possibility of heat conduction from the cavity 11 to the coil module 3.

[0089] like Figure 3 and Figure 4 As shown, in one possible embodiment, the charging module 4 includes a first circuit board 41 and a plurality of electronic devices 42. The plurality of electronic devices 42 are all mounted on the first circuit board 41 and are electrically connected to each other through the first circuit board 41. Some of the plurality of electronic devices 42 are mounted on the side of the first circuit board 41 closer to the coil module 3, and other parts are mounted on the side of the first circuit board 41 away from the coil module 3.

[0090] Multiple electronic components 42 include a transformer 421, a high-voltage electrolytic capacitor 422, a low-voltage solid-state capacitor 423, and a main control chip 424. Specifically, the transformer 421, the high-voltage electrolytic capacitor 422, and the low-voltage solid-state capacitor 423 are installed on the side of the first circuit board 41 close to the coil module 3, while the main control chip 424 is installed on the side of the first circuit board 41 away from the coil module 3. During the operation of the charging device, multiple electronic components 42 will generate a lot of heat. By placing multiple electronic components 42 on both sides of the first circuit board 41, the heat source can be dispersed, reducing the possibility of heat concentration causing the temperature inside the cavity 11 to become too high.

[0091] like Figure 3 As shown, along the length X of the charging device, the first circuit board 41 includes a first end and a second end. Along the direction from the first end to the second end, the distance between the coil module 3 and the first circuit board 41 gradually increases, resulting in a larger space between the second end of the first circuit board 41 and the coil module 3. The transformer 421 and the high-voltage electrolytic capacitor 422 in the electronic device 42 are located near the second end of the first circuit board 41.

[0092] The transformer 421 and high-voltage electrolytic capacitor 422 in electronic device 42 are high-voltage devices and generate a lot of heat during operation. By placing the transformer 421 and high-voltage electrolytic capacitor 422 near the second end, the distance between the transformer 421 and high-voltage electrolytic capacitor 422 and the coil module 3 is increased, which can reduce the possibility of heat from the transformer 421 and high-voltage electrolytic capacitor 422 being conducted to the coil module 3.

[0093] Multiple electronic devices 42 are concentrated on the side of the first circuit board 41 away from the coil module 3, which increases the distance between the electronic devices 42 and the coil module 3, thereby reducing the possibility of heat generated by the multiple electronic devices 42 being conducted to the coil module 3.

[0094] The mounting positions of multiple electronic devices 42 can be adjusted according to the space inside the cavity 11 to improve the utilization rate of the accommodating space, thereby increasing the distance between the electronic devices 42 and the heat insulation 5, and also reducing the size of the charging device.

[0095] like Figure 3 and Figure 6 As shown, in one possible embodiment, the inner wall of the cavity 11 is provided with a plurality of protrusions 13, which are spaced apart circumferentially along the cavity 11. After the charging device is installed in the cavity 11, the plurality of protrusions 13 abut against the side wall of the first circuit board 41.

[0096] Multiple protrusions 13 abut against the sidewall of the first circuit board 41, so that the first circuit board 41 and the protrusions 13 are interference-fitted, and the first circuit board 41 can be fixed in the cavity 11. Preferably, the protrusions 13 extend along the height direction Z of the charging device on the inner wall of the cavity 11, and the multiple protrusions 13 can be arranged axially symmetrically along the circumference of the charging device, so that the first circuit board 41 is more stable after being installed in the cavity 11.

[0097] like Figure 3 and Figure 4 As shown, in one possible embodiment, the charging device further includes a connector 7, which is electrically connected to the charging module 4.

[0098] The housing 1 has a through hole aligned with the connector 7, allowing the connector 7 to be connected to an external data cable. The connector 7, electrically connected to the charging module 4, serves as a power input terminal. The connector 7 is connected to an external power source via the data cable; this external power source can be a portable power bank or a fixed power source, supplying power to the coil module 3 through the charging module 4, enabling the charging device to charge electronic devices via the external power source. The connector 7 can also serve as a power output terminal, connecting to an external electrical appliance via the data cable, allowing the charging device to both charge electronic devices via the coil module 3 and supply power to external electrical appliances via the connector 7.

[0099] like Figure 3and Figure 4 As shown, in one possible embodiment, the connector 7 is mounted on the first circuit board 41, so that the connector 7 is electrically connected to the charging module 4. Along the length direction X of the charging device, the connector 7 and the coil module 3 are located on the same side.

[0100] When the charging device is charging the electronic device, the side with the coil module 3 needs to face the user. The side with the coil module 3 is the front side of the charging device, which makes it easy for the user to view the content on the electronic device. Along the length direction X of the charging device, the connector 7 and the coil module 3 are located on the same side, so that the connector 7 is also located on the front side facing the user, which makes it easy for the user to connect an external data cable through the connector 7.

[0101] The connector 7 and multiple electronic components 42 are mounted on the first circuit board 41. Along the length X of the charging device, the connector 7 is located on the side of the first circuit board 41 away from the transformer 421 and the high-voltage electrolytic capacitor 422.

[0102] The connector 7 is mounted on the first circuit board 41 to facilitate electrical connection between the connector 7 and the charging module 4. The transformer 421 and the high-voltage electrolytic capacitor 422 on the first circuit board 41 contain high-voltage current. The large distance between the connector 7 and the transformer 421 and the high-voltage electrolytic capacitor 422 can reduce the possibility of air breakdown caused by voltage difference, which could lead to arc discharge, burn out the circuit or damage the components, thus improving the safety of the charging device.

[0103] In one possible embodiment, the number of connectors 7 can be set to multiple. For example, connectors 7 are provided on the front and rear sides of the charging device. A separate first circuit board 41 can be provided at the end of the connector 7. The first circuit board 41 of the connector 7 is electrically connected to the first circuit board 41 through wires or other structures to meet the charging needs of multiple device users.

[0104] like Figure 3 and Figure 4 As shown, in one possible embodiment, a pin 8 is provided on the side of the bottom cover 2 away from the housing 1. A storage groove is provided on the bottom cover 2, extending towards one side of the cavity 11 to store the pin 8. The pin 8 can be a fixed pin 8 or a folding pin 8. Taking the folding pin 8 as an example, when the pin 8 is extended, it can be plugged into the socket to supply power to the charging device; when the pin 8 is folded, it can be stored in the storage groove, making it convenient for users to store the charging device, and also allowing the side of the charging device with the bottom cover 2 to be placed stably on a flat surface.

[0105] In one possible embodiment, the plug 8 is rotated away from the coil module 3 when it is retracted along the length direction X of the charging device.

[0106] The socket has two configurations: horizontal and vertical. When the plug 8 is inserted into the vertical socket, the side with the coil module 3 is placed upwards. When the plug 8 is retracted, it is rotated away from the coil module 3. This reduces the possibility that the plug 8 may rotate and retract into the storage slot and come out of the socket, which helps to improve the stability of the charging process.

[0107] The angle between the coil module 3 and the horizontal direction is preferably set to 45°, so that when the pin 8 is plugged into the vertically and horizontally set sockets, the tilt angle of the coil module 3 is the same, thereby keeping the angle at which the user views the screen of the electronic device the same.

[0108] like Figure 3 and Figure 4 As shown, in one possible embodiment, an insulating element 9 is provided between the pin 8 and the charging module 4.

[0109] The storage groove on the bottom cover 2 extends into the cavity 11. Due to the limited space inside the cavity 11, the distance between the first circuit board 41 in the charging module 4 and the pin 8 is small. An insulating part 9 is provided between the pin 8 and the charging module 4, which can increase the creepage distance between the pin 8 and the conductive contacts in the charging module 4, avoid creepage or arcing, and improve the safety during the charging process.

[0110] This application relates to a charging device, including a housing, a coil module 3, and a charging module 4. The housing has a cavity 11 and a first mounting groove 12. The housing also includes a heat insulation component 5, which is located between the cavity 11 and the first mounting groove 12. The coil module 3 is mounted in the first mounting groove 12, and the charging module 4 is mounted inside the cavity 11 and electrically connected to the coil module 3, enabling the charging module 4 to supply power to the coil module 3, thereby generating current within the coil module 3. Electronic devices such as smartwatches come into contact with the coil module 3, allowing the charging device to wirelessly charge the electronic devices through electromagnetic induction. The heat insulation component 5, located between the coil module 3 and the charging module 4, reduces the possibility of heat generated by the charging module 4 being conducted to the coil module 3 during charging, thus lowering the temperature of the electronic devices during charging and improving the charging efficiency of the charging device.

Claims

1. A charging device, characterized by, The charging device includes: The housing has a cavity (11) and a first mounting groove (12), and the housing also includes a heat insulation element (5) located between the cavity (11) and the first mounting groove (12); Coil module (3), the coil module (3) is installed in the first mounting slot (12); The charging module (4) is installed inside the cavity (11) and is electrically connected to the coil module (3).

2. The charging device of claim 1, wherein, The coil module (3) is inclined, and the angle between the plane where the coil module (3) is located and the plane where the bottom surface of the outer shell is located is less than or equal to 45°.

3. The charging device of claim 2, wherein, The heat insulation component (5) is inclined, and the coil module (3) is installed on the side of the heat insulation component (5) away from the cavity (11).

4. The charging device of claim 1, wherein, The coil module (3) includes a cover plate (32), a magnetic component (33), a magnetic shielding component (34), and a coil (35). The magnetic shielding component (34) is provided with a receiving groove to accommodate the magnetic component (33) and the coil (35). One side of the magnetic shielding component (34) with the receiving groove is connected to the cover plate (32). The cover plate (32) is connected to the side wall of the first mounting groove (12).

5. The charging device of claim 1, wherein, The charging device includes a heat sink (6), which is installed in the first mounting groove (12). The end of the heat sink (6) protrudes from the first mounting groove (12) and is arranged around the coil module (3).

6. The charging device of claim 5, wherein, The heat sink (6) has a side plate (62) and a bottom plate (63). The side plate (62) and the bottom plate (63) form a second mounting groove (61). The coil module (3) is installed in the second mounting groove (61). The outer surface of the side plate (62) is connected to the inner wall of the first mounting groove (12).

7. The charging device of claim 1, wherein, The coil module (3) includes a second circuit board (31), which is electrically connected to the charging module (4); The second circuit board (31) is located on the side of the heat insulation member (5) away from the charging module (4), or the second circuit board (31) is located on the side of the heat insulation member (5) close to the charging module (4).

8. The charging device of claim 1, wherein, The charging module (4) includes a first circuit board (41) and a plurality of electronic devices (42). A portion of the plurality of electronic devices (42) is mounted on the side of the first circuit board (41) close to the coil module (3), and another portion is mounted on the side of the first circuit board (41) away from the coil module (3).

9. The charging device of claim 8, wherein, The first circuit board (41) includes a first end and a second end. Along the direction from the first end to the second end, the distance between the coil module (3) and the first circuit board (41) gradually increases. The electronic device (42) includes a transformer (421) and a high-voltage electrolytic capacitor (422). The transformer (421) and the high-voltage electrolytic capacitor (422) are located near the second end.

10. The charging device of claim 8, wherein, The inner wall of the cavity (11) is provided with a plurality of protrusions (13), which are spaced apart circumferentially along the cavity (11) and abut against the side wall of the first circuit board (41).

11. The charging device of claim 8, wherein, The charging device includes a connector (7) which is electrically connected to the charging module (4); the electronic device (42) includes a transformer (421) and a high-voltage electrolytic capacitor (422), and the connector (7) is located on the side of the first circuit board (41) away from the transformer (421) and the high-voltage electrolytic capacitor (422).

12. The charging device according to any one of claims 1 to 11, characterized by, The outer casing includes a housing (1) and a bottom cover (2). The coil module (3) is installed on the housing (1). The bottom cover (2) is located on the side of the housing (1) away from the coil module (3). Along the direction away from the bottom cover (2), the cross-sectional area of ​​the housing (1) gradually decreases, and the cross-section of the end of the housing (1) away from the bottom cover (2) is arc-shaped.

13. The charging device of claim 12, wherein, The bottom cover (2) is provided with a pin (8) on the side away from the housing (1), and an insulating element (9) is provided between the pin (8) and the charging module (4).

14. The charging device of claim 13, wherein, The pin (8) is rotatably mounted on the bottom cover (2), and when the pin (8) is retracted, it rotates away from the coil module (3).

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