A charging device

Abstract

The application relates to a charging device, which comprises a shell, a coil module and a charging module. The shell has a containing cavity and a mounting groove. The cavity further has a heat insulation piece between the containing cavity and the mounting groove. The coil module is mounted in the mounting groove, and the charging module is mounted in the containing cavity. The coil module comprises a third circuit board, and the charging module comprises a first circuit board. The third circuit board is mounted on the first circuit board and electrically connected with the first circuit board, so that the charging module can supply power to the coil module through the third circuit board, and then current is generated in the coil module to wirelessly charge an electronic device through the electromagnetic induction principle. The third circuit board is located in the containing cavity, so that the heat generated by the third circuit board can be reduced to be conducted to the electronic device, and the charging efficiency of the charging device on the electronic device is improved. The first circuit board and the third circuit board have an included angle of not zero, so that the space utilization in the containing cavity is improved.

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, some of these components generate significant heat. Existing charging devices generate heat that raises 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 smart electronic devices.

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

[0005] The housing has a receiving cavity and a mounting groove, and the housing also has a heat insulation element located between the receiving cavity and the mounting groove;

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

[0007] A charging module, which is installed in the receiving cavity and electrically connected to the coil module;

[0008] The charging module includes a first circuit board, and the coil module includes a third circuit board. The third circuit board is mounted on the first circuit board and electrically connected to the first circuit board. The first circuit board and the third circuit board have an angle of non-zero degrees.

[0009] In one possible embodiment, the coil module includes a coil located in the mounting slot, and one end of the third circuit board is provided with a connection portion for electrical connection with the coil.

[0010] In one possible embodiment, the connection portion is located on the side of the third circuit board away from the first circuit board, and the charging module further includes a wire that passes through the heat insulation member and is electrically connected to the connection portion and the coil, respectively.

[0011] In one possible embodiment, the charging module includes a plurality of electronic devices mounted on the first circuit board. The charging device includes a separator made of insulating material. The separator includes a first side plate and a second side plate, both of which are located between the third circuit board and the electronic devices.

[0012] In one possible embodiment, the separator includes a third side plate and a bottom plate, the third side plate being disposed opposite to the first side plate, and both the first side plate and the third side plate being connected to the bottom plate, with an accommodating space between the first side plate, the third side plate and the bottom plate, and at least a portion of the structure of the third circuit board located within the accommodating space.

[0013] In one possible embodiment, a first fixing part and a second fixing part are provided in the accommodating space. The first fixing part is located at the connection position between the first side plate and the bottom plate, and the second fixing part is located at the connection position between the third side plate and the bottom plate. The first fixing part and the second fixing part respectively abut against the two sides of the third circuit board.

[0014] In one possible embodiment, the length of the first fixing part is greater than the length of the second fixing part in the direction from the first side plate to the third side plate.

[0015] In one possible embodiment, the third circuit board is perpendicular to the first circuit board, and the first circuit board is parallel to the bottom wall of the housing.

[0016] In one possible embodiment, the charging module includes a second circuit board mounted on the first circuit board and parallel to the third circuit board, with a mounting space between the third circuit board and the second circuit board for mounting at least a portion of the electronic components.

[0017] In one possible embodiment, both the second circuit board and the third circuit board are mounted on the side of the first circuit board closer to the coil, and the cross-sectional areas of the second circuit board and the third circuit board gradually decrease in the direction away from the first circuit board.

[0018] In one possible embodiment, the charging module includes multiple electronic devices, including a transformer and a high-voltage electrolytic capacitor, which are mounted on the side of the second circuit board close to the first circuit board.

[0019] In one possible embodiment, the electronic device includes a main control chip mounted on the side of the first circuit board away from the coil module.

[0020] In one possible embodiment, the charging device includes a plug located outside the receiving cavity, and an insulating element is provided between the plug and the charging module.

[0021] This application relates to a charging device, including a housing, a coil module, and a charging module. The housing has a receiving cavity and a mounting slot. The cavity also has a heat insulation component located between the receiving cavity and the mounting slot. The coil module is mounted in the mounting slot, and the charging module is mounted within the receiving cavity. The coil module includes a third circuit board, and the charging module includes a first circuit board. The third circuit board is mounted on the first circuit board and electrically connected to it, enabling the charging module to supply power to the coil module through the third circuit board. This generates current within the coil module, allowing for wireless charging of electronic devices via electromagnetic induction. The third circuit board's location within the receiving cavity reduces the possibility of heat generated by the third circuit board being conducted to the electronic device, thus improving the charging efficiency of the charging device. The first and third circuit boards have a non-zero angle between them, improving the space utilization within the receiving cavity. Attached Figure Description

[0022] 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.

[0023] Figure 1 This is a schematic diagram of the structure of the charging device provided in the embodiments of this application;

[0024] Figure 2 for Figure 1 A cross-sectional view along the AA direction;

[0025] Figure 3 A cross-sectional view of the housing provided in an embodiment of this application;

[0026] Figure 4 This is a schematic diagram of a zero-first embodiment of the charging module provided in this application.

[0027] Figure 5 A schematic diagram of the structure of the separator provided in the embodiments of this application;

[0028] Figure 6 A top view of the separator provided in the embodiments of this application;

[0029] Figure 7 An exploded view of the charging device provided in the embodiments of this application;

[0030] Figure 8This is a schematic diagram of the structure of the charging module provided in an embodiment of this application.

[0031] Reference numerals: 1 - Outer casing;

[0032] 11-Receiving cavity;

[0033] 12-Mounting slot;

[0034] 13-Insulation components;

[0035] 14-Shell;

[0036] 15-Bottom cover;

[0037] 16 - Protrusion; 2 - Coil module;

[0038] 21-Third circuit board;

[0039] 211-Connecting part;

[0040] 22-coil;

[0041] 3-Charging module;

[0042] 31-First circuit board;

[0043] 32 - Second circuit board;

[0044] 34-Electronic Components;

[0045] 341 - Transformer;

[0046] 342 - Fuse;

[0047] 343 - High-voltage electrolytic capacitor;

[0048] 344 - Main control chip; 4 - Separator;

[0049] 41-First side plate;

[0050] 42 - Second side plate;

[0051] 43 - Third side panel;

[0052] 44 - Fixing part;

[0053] 45 - Accommodation space; 5 - Prongs;

[0054] 6-Insulating components. Detailed Implementation

[0055] 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.

[0056] 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.

[0057] 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.

[0058] 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.

[0059] like Figures 1 to 4 As shown, this application provides a charging device, including a housing 1, a coil module 2 and a charging module 3. The housing 1 has a receiving cavity 11 and a mounting groove 12. The cavity also has a heat insulation member 13, which is located between the receiving cavity 11 and the mounting groove 12. The coil module 2 is installed in the mounting groove 12, and the charging module 3 is installed in the receiving cavity 11 and is electrically connected to the coil module 2.

[0060] Charging module 3 is electrically connected to coil module 2, supplying power to coil module 2 and generating current within it. When electronic devices such as smartwatches come into contact with coil module 2, the charging device wirelessly charges them using electromagnetic induction. During operation, the temperature of charging module 3 rises, and this heat is conducted to the electronic device through coil module 2. 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 13 between coil module 2 and charging module 3, the possibility of heat from charging module 3 being conducted to coil module 2 is reduced, thereby lowering the temperature of the electronic device during charging and improving the charging efficiency.

[0061] like Figure 4As shown, the charging module 3 includes a first circuit board 31, and the coil module 2 includes a third circuit board 21 and a coil 22. The third circuit board 21 is mounted on the first circuit board 31 and forms a non-zero angle with the first circuit board 31. One end of the third circuit board 21 is provided with a connecting part 211 for electrical connection with the coil 22. The connecting part 211 is located on the side of the third circuit board 21 away from the first circuit board 31 to facilitate connection with the coil 22. The charging module 3 also includes a wire that can pass through the heat insulation member 13, so that both ends of the wire are connected to the connecting part 211 and the coil 22 respectively, thereby electrically connecting the coil 22 and the third circuit board 21.

[0062] The third circuit board 21 is mounted on the first circuit board 31 to facilitate electrical connection between the two circuit boards. This allows the charging module 3 to supply power to the coil 22 via the third circuit board 21, generating current within the coil 22 and wirelessly charging the electronic device using electromagnetic technology. During operation, the third circuit board 21 also generates heat. Placing the third circuit board 21 within the receiving cavity 11 reduces the likelihood of this heat being conducted to the coil 22, thus lowering the temperature of the coil 22 during charging and improving the charging efficiency of the electronic device.

[0063] The outer casing 1 includes a housing 14 and a bottom cover 15. The coil module 2 is mounted on the housing 14, and the bottom cover 15 is located at the end of the housing 14 away from the coil module 2. The cross-sectional area of ​​the housing 14 gradually decreases along the direction away from the bottom cover 15, reducing the size of the charging device and making it more portable. For example, in electronic devices such as smartwatches, the charging position is flanked by structures such as watch straps. The coil module 2 is located on the side of the housing 14 away from the bottom cover 15, and the cross-sectional area of ​​the housing 14 gradually decreases along the direction away from the bottom cover 15. This reduces the structure around the coil module 2, thereby reducing the possibility of interference between the housing 14 and the watch strap, and improving charging stability. This structure also reduces the space within the receiving cavity 11. The third circuit board 21 is mounted on the side of the first circuit board 31 closest to the coil 22. The first circuit board 31 and the third circuit board 21 have a non-zero angle, and the cross-sectional area of ​​the third circuit board 21 gradually decreases along the direction away from the first circuit board 31, improving the space utilization within the receiving cavity 11 and reducing the possibility of interference between the third circuit board 21 and the heat insulation component 13.

[0064] like Figure 4 As shown, in one possible embodiment, the charging device includes a separator 4 located between the first circuit board 31 and the third circuit board 21, and mounted on the first circuit board 31, while the third circuit board 21 is mounted on the separator 4.

[0065] The third circuit board 21 is mounted on the first circuit board 31 via the separator 4, which can improve the stability of the third circuit board 21 after it is mounted on the first circuit board 31, reduce the possibility of the third circuit board 21 shaking or falling off, and thus reduce the possibility of short circuit caused by the contact between the third circuit board 21 and the electronic device 34 in the first circuit board 31, which is beneficial to improving the safety of the electronic device.

[0066] In one possible embodiment, the separator 4 is made of insulating material.

[0067] The insulating material can separate the first circuit board 31 and the third circuit board 21, reducing the possibility of electrical connection between the third circuit board 21 and the electronic device 34 mounted on the first circuit board 31, which is beneficial to improving the safety of the charging device.

[0068] like Figure 4 and Figure 5 As shown, in one possible embodiment, the separator 4 includes a first side plate 41 and a second side plate 42, both of which extend in a direction perpendicular to the first circuit board 31 and are located between the third circuit board 21 and a plurality of electronic devices 34.

[0069] The charging module 3 is connected to a power source. It converts high-voltage current into low-voltage current, which is then conducted to the coil module 2, which in turn charges the electronic devices. Therefore, the charging module 3 contains multiple high-voltage electronic components 34, while the third circuit board 21 handles low-voltage current. If the distance between the third circuit board 21 and the high-voltage electronic components 34 in the charging module 3 is small, the high voltage difference may cause air breakdown, leading to arc discharge, which could burn out circuits or damage components, or cause signal interference. The first side plate 41 separates the third circuit board 21 from the transformer 341 among the multiple electronic components 34, and the second side plate 42 separates the third circuit board 21 from the fuses 342 among the multiple electronic components 34. Both the first side plate 41 and the second side plate 42 are made of insulating material, which reduces the possibility of arc discharge between the third circuit board 21 and the electronic components 34 causing circuit burnout or component damage, thereby improving the electrical safety of the charging device.

[0070] like Figure 4 and Figure 5 As shown, in one possible embodiment, the separator 4 includes a third side plate 43 and a bottom plate 46. The third side plate 43 is disposed opposite to the first side plate 41, and the first side plate 41, the second side plate 42 and the third side plate 43 are located on the same side of the bottom plate 46 and are all connected to the bottom plate 46, so that the first side plate 41, the second side plate 42, the third side plate 43 and the bottom plate 46 form an accommodating space 45, and the third circuit board 21 is located in the accommodating space 45.

[0071] The first side plate 41 and the third side plate 43 can restrict the position of the wireless charging circuit board, so that the third circuit board 21 is installed in the receiving space 45, reducing the possibility of short circuit between the third circuit board 21 and the electronic device 34 installed on the first circuit board 31.

[0072] like Figure 5 and Figure 6 As shown, in one possible embodiment, the receiving space 45 has a fixing part 44, which includes a first fixing part 441 and a second fixing part 442. The first fixing part 441 is located at the angle between the first side plate 41 and the bottom plate 46 and extends into the receiving space 45. The second fixing part 442 is located at the angle between the third side plate 43 and the bottom plate 46 and extends into the receiving space 45, so that the first fixing part 441 and the second fixing part 442 abut against the two sides of the third circuit board 21.

[0073] The fixing part 44 abuts against the third circuit board 21, so that the fixing part 44 can clamp the third circuit board 21 from both sides, restricting the position of the third circuit board 21 in the receiving space 45, and improving the reliability of the third circuit board 21 after it is installed in the separator 4.

[0074] The fixing part 44 protrudes from the first side plate 41 and the third side plate 43, and the cross-sectional area of ​​the first fixing part 441 is smaller than the cross-sectional area of ​​the first side plate 41, and the cross-sectional area of ​​the second fixing part 442 is smaller than the cross-sectional area of ​​the third side plate 43, so that there is a gap between the third circuit board 21 and the first side plate 41 and the third side plate 43, thereby improving the heat dissipation effect of the third circuit board 21.

[0075] like Figure 5 and Figure 6 As shown, in one possible embodiment, the extension length of the first fixing part 441 is greater than the extension length of the second fixing part 442 in the direction from the first side plate 41 to the third side plate 43.

[0076] The first side plate 41 is located between the third circuit board 21 and the high-voltage electronic device 34. The first fixing part 441 has a large extension length, which can increase the distance between the third circuit board 21 and the first side plate 41, improve the distance between the third circuit board 21 and the high-voltage electronic device 34, and thus improve the safety of the charging module 3.

[0077] like Figure 8 As shown, in one possible embodiment, the charging module 3 includes a second circuit board 32, which is perpendicular to the first circuit board 31.

[0078] The electronic components 34 mounted on the first circuit board 31 and the electronic components 34 mounted on the second circuit board 32 can be arranged alternately to reduce the volume occupied by the charging module 3 in the receiving cavity 11, so that the charging device can be miniaturized and easy to carry.

[0079] like Figure 7 and Figure 8 As shown, in one possible embodiment, the first circuit board 31 is parallel to the bottom wall of the housing 1, and the second circuit board 32 is perpendicular to the first circuit board 31, such that the second circuit board 32 is perpendicular to the bottom wall of the housing 1.

[0080] The first circuit board 31 is parallel to the bottom wall of the outer casing 1, and the second circuit board 32 is perpendicular to the bottom wall of the outer casing 1. This allows the use of the space within the receiving cavity 11 perpendicular to the bottom wall of the outer casing 1, thereby reducing the space occupied by the charging module 3 within the receiving cavity 11. This helps to increase the distance between the charging module 3 and the coil module 2, thereby reducing the possibility of heat generated by the charging module 3 during operation being conducted to the coil module 2. This helps to reduce the temperature of the coil module 2 during the charging process, thereby improving the charging efficiency of the charging module 3 for electronic devices.

[0081] like Figure 7 and Figure 8 As shown, in one possible embodiment, the second circuit board 32 is located on the side of the first circuit board 31 near the coil 22. Along the direction away from the first circuit board 31, the cross-sectional area of ​​the second circuit board gradually decreases, which can improve the space utilization rate in the receiving cavity 11 and reduce the possibility of interference between the second circuit board 32 and the heat insulation member 13.

[0082] like Figure 8 As shown, in one possible embodiment, the electronic device 34 includes a transformer 341 and a high-voltage electrolytic capacitor 343, which can be mounted on the second circuit board 32 to improve the space utilization within the receiving cavity 11.

[0083] During the operation of the charging device, the transformer 341 and the high-voltage electrolytic capacitor 343 will generate a lot of heat. The second circuit board 32 is located on the side of the first circuit board 31 closer to the coil 22. The transformer 341 and the high-voltage electrolytic capacitor 343 are located on the side of the second circuit board 32 closer to the first circuit board 31. This can increase the distance between the transformer 341 and the high-voltage electrolytic capacitor 343 and the coil 22, which can reduce the possibility of the heat generated by the transformer 341 and the high-voltage electrolytic capacitor 343 being conducted to the coil 22. This is beneficial to reducing the temperature of the coil 22, thereby improving the charging efficiency of the charging device for electronic devices.

[0084] like Figure 7 and Figure 8 As shown, in one possible embodiment, the electronic device 34 further includes a main control chip 344, which is mounted on the side of the first circuit board 31 away from the coil module 2.

[0085] During the operation of the charging device, the main control chip 344 will generate a lot of heat. The main control chip 344 is located on the side of the first circuit board 31 away from the coil module 2, which can disperse the heat source of multiple electronic devices 34 and reduce the possibility of heat concentration causing the temperature inside the receiving cavity 11 to be too high.

[0086] like Figure 4 As shown, in one possible embodiment, the third circuit board 21 and the second circuit board 32 are both mounted on the first circuit board 31, and the third circuit board 21 and the second circuit board 32 are parallel to each other, so that an installation space is formed between the third circuit board 21 and the second circuit board 32 for mounting electronic devices 34.

[0087] The third circuit board 21 and the second circuit board 32 are parallel to each other, which can expand the installation space between the third circuit board 21 and the second circuit board 32, increase the distance between the third circuit board 21 and the electronic device 34 mounted on the second circuit board 32, reduce the possibility of arc discharge between the third circuit board 21 and the electronic device 34 causing circuit burnout or component damage, and thus help improve the electrical safety of the charging device.

[0088] In one possible embodiment, the first circuit board 31 is parallel to the bottom wall of the housing 1, and the second circuit board 32 is mounted on the first circuit board 31 and perpendicular to the bottom wall of the housing 1. The electronic devices 34 mounted on the second circuit board 32 are arranged at intervals along the height direction of the charging device. During the charging process, the heat generated by the multiple electronic devices 34 varies. The electronic devices 34 with higher heat generation are mounted on the side of the second circuit board 32 closer to the first circuit board 31 to increase the distance between them and the coil module 2. The electronic devices 34 with lower heat generation can be mounted on the side of the second circuit board 32 away from the first circuit board 31, thereby reducing the temperature of the coil module 2 during the charging process and improving the charging efficiency of the charging device for the electronic devices 34.

[0089] like Figure 3 and Figure 4 As shown, in one possible embodiment, the inner wall of the receiving cavity 11 is provided with a plurality of protrusions 16, which are spaced apart circumferentially along the receiving cavity 11. After the charging device is installed in the receiving cavity 11, the plurality of protrusions 16 abut against the sidewall of the first circuit board 31.

[0090] Multiple protrusions 16 abut against the sidewall of the first circuit board 31, causing an interference fit between the first circuit board 31 and the protrusions 16, thus fixing the first circuit board 31 within the receiving cavity 11. Preferably, the protrusions 16 extend along the height direction Z of the charging device on the inner wall of the receiving cavity 11. Along the circumference of the charging device, the multiple protrusions 16 can be arranged axially symmetrically, making the first circuit board 31 more stable after being installed in the receiving cavity 11. The second circuit board 32 is installed on the first circuit board 31, thus fixing the second circuit board 32 within the receiving cavity 11.

[0091] like Figure 2 As shown, in one possible embodiment, the housing 1 includes a shell 14 and a bottom cover 15. The charging module 3 is installed in a receiving cavity 11 within the shell 14, and the bottom cover 15 can seal the receiving cavity 11. The coil module 2 is located on the side of the shell 14 away from the bottom cover 15. The charging device includes a plug 5, which is connected to an external power source to supply power to the charging module 3. The plug 5 is located on the side of the bottom cover 15 away from the shell 14, so that the plug 5 is located outside the receiving cavity 11. An insulating member 6 is provided between the plug 5 and the charging module 3.

[0092] The storage groove on the bottom cover 15 extends into the cavity 11. Due to the limited space inside the cavity 11, the distance between the circuit board and the pin 5 in the charging module 3 is small. An insulating part 6 is provided between the pin 5 and the charging module 3, which can increase the creepage distance between the pin 5 and the conductive contacts in the charging module 3, avoid creepage or arcing, and improve the safety during the charging process.

[0093] This application relates to a charging device, including a housing 1, a coil module 2, and a charging module 3. The housing 1 has a receiving cavity 11 and a mounting groove 12. The cavity also has a heat insulation member 13, which is located between the receiving cavity 11 and the mounting groove 12. The coil module 2 is mounted in the mounting groove 12, and the charging module 3 is mounted in the receiving cavity 11 and electrically connected to the coil module 2 to supply power to the coil module 2, thereby generating current in the coil module 2. This allows the charging device to wirelessly charge electronic devices through electromagnetic induction. The coil module includes a third circuit board 21, and the charging module 3 includes a first circuit board 31. The third circuit board 21 is mounted on the first circuit board 31 and electrically connected to it, allowing the charging module 3 to supply power to the coil module 2 through the third circuit board 21. During the operation of the charging device, the third circuit board 21 generates heat. Since the third circuit board 21 is located in the receiving cavity 11, the possibility of the heat generated by the third circuit board 21 being conducted to the electronic device is reduced, which is beneficial to improving the charging efficiency of the charging device for electronic devices. The first circuit board 31 and the third circuit board 21 have a non-zero angle between them, which can improve the space utilization rate within the cavity 11.

Claims

1. A charging device, characterized in that, The charging device includes: The housing (1) has a receiving cavity (11) and a mounting groove (12), and the housing (1) also has a heat insulation element (13) located between the receiving cavity (11) and the mounting groove (12); Coil module (2), the coil module (2) is installed in the mounting slot (12); A charging module (3) is installed in the receiving cavity (11) and is electrically connected to the coil module (2); The charging module (3) includes a first circuit board (31), and the coil module (2) includes a third circuit board (21). The third circuit board (21) is mounted on the first circuit board (31) and electrically connected to the first circuit board (31). The first circuit board (31) and the third circuit board (21) have a non-zero angle between them.

2. The charging device according to claim 1, characterized in that, The coil module (2) includes a coil (22) located in the mounting slot (12). One end of the third circuit board (21) is provided with a connecting part (211) for electrically connecting with the coil (22).

3. The charging device according to claim 2, characterized in that, The connecting part (211) is located on the side of the third circuit board (21) away from the first circuit board (31). The charging module (3) also includes a wire that passes through the heat insulation member (13) and is electrically connected to the connecting part (211) and the coil (22) respectively.

4. The charging device according to claim 1, characterized in that, The charging module (3) includes multiple electronic devices (34), which are mounted on the first circuit board (31). The charging device includes a separator (4), which is made of insulating material. The separator (4) includes a first side plate (41) and a second side plate (42), which are both located between the third circuit board (21) and the electronic devices (34).

5. The charging device according to claim 4, characterized in that, The separator (4) includes a third side plate (43) and a bottom plate (46). The third side plate (43) is disposed opposite to the first side plate (41), and both the first side plate (41) and the third side plate (43) are connected to the bottom plate (46). There is a receiving space (45) between the first side plate (41), the third side plate (43) and the bottom plate (46), and at least a portion of the structure of the third circuit board (21) is located within the receiving space (45).

6. The charging device according to claim 5, characterized in that, The accommodating space (45) is provided with a first fixing part (441) and a second fixing part (442). The first fixing part (441) is located at the connection position between the first side plate (41) and the bottom plate (46), and the second fixing part (442) is located at the connection position between the third side plate (43) and the bottom plate (46). The first fixing part (441) and the second fixing part (442) respectively abut against the two sides of the third circuit board (21).

7. The charging device according to claim 6, characterized in that, Along the direction from the first side plate (41) to the third side plate (43), the length of the first fixing part (441) is greater than the length of the second fixing part (442).

8. The charging device according to any one of claims 1 to 7, characterized in that, The third circuit board (21) is perpendicular to the first circuit board (31), and the first circuit board (31) is parallel to the bottom wall of the housing (1).

9. The charging device according to claim 8, characterized in that, The charging module (3) includes a second circuit board (32) and a plurality of electronic devices (34). The second circuit board (32) is mounted on the first circuit board (31) and is parallel to the third circuit board (21). There is an installation space between the third circuit board (21) and the second circuit board (32), and the installation space is used to install at least some of the electronic devices (34).

10. The charging device according to claim 9, characterized in that, The second circuit board (32) and the third circuit board (21) are both mounted on the side of the first circuit board (31) near the coil (22). Along the direction away from the first circuit board (31), the cross-sectional area of ​​the second circuit board (32) and the third circuit board (21) gradually decreases.

11. The charging device according to claim 9, characterized in that, The electronic device (34) includes a transformer (341) and a high-voltage electrolytic capacitor (343), which are mounted on the side of the second circuit board (32) near the first circuit board (31).

12. The charging device according to claim 10, characterized in that, The electronic device (34) includes a main control chip (344), which is mounted on the side of the first circuit board (31) away from the coil module (2).

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