Circuit assembly of charger, charger and electric device

Abstract

The utility model discloses a kind of charger's circuit assembly, charger and electric equipment, the circuit assembly of charger includes: at least two circuit boards and at least one insulating part.Specifically, at least two circuit boards are arranged along the thickness direction of circuit board, two adjacent circuit boards are electrically connected by conducting member, and the insulating part is arranged between two adjacent circuit boards.Each circuit board is formed with a through hole, and one end of the insulating part is adapted to be connected with the shell by passing through the through hole.According to the circuit assembly of the charger of the utility model, the creepage distance between the two circuit boards is increased by setting the insulating part between the two adjacent circuit boards, the safety hazard is reduced, and the safety performance of the charger is increased.

Description

Technical Field

[0001] This utility model relates to the field of charger technology, and in particular to a circuit component of a charger, a charger, and an electrical device. Background Technology

[0002] In existing technologies, a charger's PCBA (Printed Circuit Board Assembly) typically consists of two PCBs. Currently, chargers are increasingly moving towards miniaturization and higher power output. However, the limited internal space of smaller chargers leads to a denser PCBA layout and greater difficulty in component stacking. Insufficient creepage distance between the primary and secondary PCBA boards can cause dangerous situations such as arcing, posing a safety hazard. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. Therefore, one objective of this invention is to provide a circuit assembly for a charger that increases the creepage distance between two adjacent circuit boards by placing an insulating component between them, thereby reducing safety hazards and improving the safety performance of the charger.

[0004] Another objective of this invention is to provide a charger that includes the circuit components of the aforementioned charger.

[0005] Another objective of this invention is to provide an electrical device that includes the aforementioned charger.

[0006] A circuit assembly of a charger according to a first aspect of the present invention includes: at least two circuit boards, the at least two circuit boards being arranged along the thickness direction of the circuit boards, and adjacent two circuit boards being electrically connected by a conductive element; at least one insulating element disposed between adjacent two circuit boards; wherein each circuit board has a through hole formed therein, and one end of the insulating element passes through the through hole and is adapted to be connected to a housing.

[0007] The circuit assembly of the charger according to the present invention increases the creepage distance between two adjacent circuit boards by setting an insulating component between them, thereby reducing safety hazards, improving the safety performance of the charger, and facilitating the miniaturization design of the charger.

[0008] According to some embodiments of the present invention, the insulating member includes: a main body extending along the thickness direction of the circuit board, with an end of the main body passing through the through hole; and a first receiving portion disposed on one side of the main body in the thickness direction and extending along the length direction of the main body, wherein the first receiving portion and the main body together define a first receiving cavity, and the first receiving cavity is suitable for installing a transformer.

[0009] According to some embodiments of the present invention, the first receiving portion includes: a first connecting segment connected to the main body portion and extending along the length direction of the main body portion; a second connecting segment connected to the first connecting segment and extending along the thickness direction of the main body portion; and a third connecting segment connected to the second connecting segment and extending along the length direction of the main body portion; wherein the first connecting segment and the third connecting segment are located on the same side of the second connecting segment, and the length of the first connecting segment is less than the length of the third connecting segment.

[0010] According to some embodiments of the present invention, the insulating member further includes: a second receiving portion, the second receiving portion and the first receiving portion being disposed on the same side in the thickness direction of the main body portion, the second receiving portion having a second receiving cavity, the second receiving cavity being adapted to mount a capacitor.

[0011] According to some embodiments of the present invention, the insulating member further includes: a plurality of first reinforcing ribs, wherein the first receiving portion and the second receiving portion are connected to the main body portion through the plurality of first reinforcing ribs; and a plurality of second reinforcing ribs, wherein the first receiving portion is connected to the second receiving portion through the plurality of second reinforcing ribs.

[0012] According to some embodiments of the present invention, the circuit assembly of the charger further includes: an extension portion disposed on the side of the first receiving cavity away from the main body portion, the extension portion extending along the thickness direction of the main body portion and connected to the first receiving portion and the second receiving portion; the insulating member further includes a plurality of third reinforcing ribs, the first receiving portion and the second receiving portion being connected to the extension portion through the plurality of third reinforcing ribs.

[0013] According to some embodiments of the present invention, the end of the main body is provided with at least one limiting protrusion, the limiting protrusion protruding in a direction away from the center of the main body, and the limiting protrusion being adapted to cooperate with the limiting groove of the outer shell.

[0014] According to some embodiments of the present invention, in the thickness direction of the main body, at least one rib is provided on the side of the main body adjacent to the first receiving portion, and the rib extends along the height direction of the main body.

[0015] The charger according to a second aspect embodiment of the present invention includes the circuit components of the charger according to a first aspect embodiment of the present invention.

[0016] The electrical equipment according to a third aspect of the present invention includes the charger according to a second aspect of the present invention.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the circuit components of a charger according to an embodiment of the present utility model; Figure 2 This is another schematic diagram of the circuit components of the charger according to an embodiment of the present utility model; Figure 3 This is a schematic diagram of an insulating component according to an embodiment of the present utility model; Figure 4 This is a front view of the insulating component according to an embodiment of the present utility model; Figure 5 This is a side view of the insulating component according to an embodiment of the present utility model; Figure 6 This is a bottom view of the insulating component according to an embodiment of the present utility model.

[0020] Explanation of reference numerals in the attached figures: 100. Circuit components of the charger; 10. Circuit board; 11. Through hole; 20. Insulating component; 21. Main body; 211. Limiting protrusion; 212. Rib; 213. Third chamfer; 22. First receiving part; 221. First connecting section; 222. Second connecting section; 223. Third connecting section; 224. First receiving cavity; 225. First chamfer; 23. Second receiving part; 231. Second receiving cavity; 232. Second chamfer; 24. First reinforcing rib; 25. Second reinforcing rib; 26. Extension; 27. Third reinforcing rib; 30. Conductive component. Detailed Implementation

[0021] The embodiments of this utility model are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. Figures 1-6 The circuit assembly 100 of the charger according to a first aspect embodiment of the present invention is described.

[0022] like Figures 1-3 As shown, the circuit assembly 100 of the charger according to the first aspect embodiment of the present invention includes: at least two circuit boards 10 and at least one insulating member 20.

[0023] Specifically, at least two circuit boards 10 are arranged along the thickness direction of the circuit board 10 (e.g., Figure 1 The circuit boards 10 are arranged vertically, with adjacent circuit boards 10 electrically connected by conductive elements 30, and insulating elements 20 disposed between adjacent circuit boards 10. Each circuit board 10 has a through hole 11, and one end of the insulating element 20 passes through the through hole 11 to be connected to the outer casing (not shown).

[0024] like Figure 1 As shown, the circuit board 10 is generally a rectangular plate structure. There can be two circuit boards 10, with a certain mounting space between them. Conductive components 30 and insulating components 20 are disposed in the mounting space. The conductive component 30 is generally a rectangular strip structure. Both sides of the conductive component 30 in the length direction are connected to the two circuit boards 10 respectively. There can be two conductive components 30, which are located on both sides of the length or width direction of the circuit board 10 respectively. The insulating component 20 is disposed in the width direction of the conductive component 30 (for example, ...). Figure 1 On one side (in the front-back direction), the insulating component 20 is connected in series between the two circuit boards 10. The through hole 11 is roughly square, and the end of the insulating component 20 connected to the through hole 11 is roughly adapted to the shape of the through hole 11.

[0025] When the charger circuit assembly 100 is used for the charger, one of the circuit boards 10 (primary PCBA) is adapted to connect to mains power (high voltage AC), and the other circuit board 10 (secondary PCBA) is adapted to connect to electrical devices such as mobile phones (low voltage DC). The two circuit boards 10 are connected through conductive elements 30 to convert high voltage AC power into low voltage DC power to charge electrical devices such as mobile phones.

[0026] On the one hand, the insulating component 20 forms a reliable insulating barrier between two adjacent circuit boards 10, increasing the creepage distance between the primary and secondary PCBAs (the shortest distance measured along the surface of the insulating component 20 between the two circuit boards 10). Current is less likely to be conducted from the primary side to the secondary side along the surface of the circuit board 10, effectively preventing dangerous situations such as arcing that may occur due to insufficient creepage distance, reducing safety hazards, and increasing the safety performance of the charger. On the other hand, the insulating component 20 allows for a more compact layout of components such as the circuit board 10 within the limited internal space of the housing, which is beneficial for the miniaturization design of the charger. Furthermore, the insulating component 20, connected to the housing through the through-hole 11, not only helps improve the structural stability of the circuit board 10, making the relative positions between adjacent circuit boards 10 more fixed and reducing the risk of device damage or poor electrical connections due to vibration and other factors, further improving the safety performance of the charger, but also forms a reliable insulating barrier between the circuit board 10 and the housing, preventing current on the circuit board 10 from being conducted to the housing, further improving the safety performance of the charger.

[0027] According to the embodiment of the present invention, the circuit assembly 100 of the charger increases the creepage distance between two adjacent circuit boards 10 by providing an insulating member 20 between them, thereby reducing safety hazards, increasing the safety performance of the charger, and facilitating the miniaturization design of the charger.

[0028] It should be noted that, under normal circumstances, the creepage distance needs to be greater than 5.0 mm, and when the altitude is greater than 5000 meters, the creepage distance needs to be greater than 7.0 mm. This application does not impose specific restrictions on this.

[0029] According to some embodiments of the present invention, the insulating member 20 includes a main body 21 and a first receiving portion 22. The main body 21 extends along the thickness direction of the circuit board 10, and its end portion passes through a through hole 11. The first receiving portion 22 is disposed on one side of the main body 21 in the thickness direction, and extends along the length direction of the main body 21 (e.g., ...). Figure 3 The first receiving portion 22 and the main body portion 21 together define a first receiving cavity 224, which is suitable for installing a transformer (not shown in the figure).

[0030] like Figure 1 and Figure 3 As shown, the main body 21 is composed of multiple rectangular plate structures connected in sequence. On the projection plane of the main body 21 along its length, the main body 21 has a multi-step structure to adapt to the limited installation space inside the casing, thereby improving the space utilization of the charger. Moreover, the main body 21 extends along the thickness direction of the circuit board 10 and passes through the through holes 11 of the circuit board 10. The main body 21 forms a reliable insulating barrier between two adjacent circuit boards 10, increasing the creepage distance between the primary PCBA and the secondary PCBA. Current is difficult to conduct from the primary side to the secondary side along the surface of the circuit board 10, effectively preventing dangerous situations such as arcing that may occur due to insufficient creepage distance, reducing safety hazards, and increasing the safety performance of the charger.

[0031] In addition, the first receiving part 22 is located between the two conductive parts 30 and is adjacent to one of the circuit boards 10. When the transformer is located in the first receiving cavity 224, the first receiving part 22 surrounds the outer periphery of the transformer, ensuring the safety distance between the transformer and other devices, isolating the heat released by the transformer during operation, and isolating external dust and moisture from the outside of the transformer, avoiding any impact on the transformer, and improving the working reliability and safety performance of the charger.

[0032] According to some embodiments of the present invention, the first receiving portion 22 includes a first connecting segment 221, a second connecting segment 222 and a third connecting segment 223.

[0033] Specifically, the first connecting segment 221 is connected to the main body 21 and extends along the length direction of the main body 21. The second connecting segment 222 is connected to the first connecting segment 221 and extends along the thickness direction of the main body 21. The third connecting segment 223 is connected to the second connecting segment 222 and extends along the length direction of the main body 21. The first connecting segment 221 and the third connecting segment 223 are located on the same side of the second connecting segment 222, and the length of the first connecting segment 221 is less than the length of the third connecting segment 223.

[0034] like Figures 3-5 As shown, the first connecting section 221, the second connecting section 222, and the third connecting section 223 are all rectangular plate structures. Together, they form a semi-enclosed structure, ensuring the safety distance between the transformer and other components, isolating the heat released by the transformer during operation, and keeping external dust and moisture outside the transformer to avoid affecting it, thus improving the reliability and safety performance of the charger. Furthermore, it prevents the transformer from shifting laterally or tilting during vibration, or from colliding with other components and causing damage, further enhancing the charger's reliability.

[0035] Furthermore, in the length direction of the third connecting segment 223 (e.g., Figure 3 The side of the first receiving section 221 (located to the left or right of the second connecting section 222) away from the second connecting section 222 has an opening structure, and the length of the first connecting section 221 is less than the length of the third connecting section 223. During installation, the transformer can be inserted into the first receiving cavity 224 from the opening near the first connecting section 221. This design avoids positional interference between the first receiving section 22 and the transformer during installation, improving installation efficiency and reducing installation difficulty. Furthermore, the heat generated by the transformer during operation can be conducted from the opening to the outside of the charger's circuit components 100, preventing heat accumulation inside the transformer and further improving heat dissipation efficiency.

[0036] Furthermore, the first connecting section 221, the second connecting section 222 and the third connecting section 223 are all provided with a first chamfer 225 to facilitate the installation of the transformer.

[0037] According to some embodiments of the present invention, the insulating member 20 further includes a second receiving portion 23, the second receiving portion 23 and the first receiving portion 22 are disposed on the same side in the thickness direction of the main body portion 21, the second receiving portion 23 has a second receiving cavity 231, the second receiving cavity 231 is adapted to install a capacitor (not shown in the figure).

[0038] like Figure 3 As shown, the second receiving portion 23 is a cylindrical structure that extends vertically and has an opening on the side. The opening of the second receiving portion 23 is located on the side of the second receiving portion 23 that is radially away from the first receiving portion 22. During installation, the capacitor can be inserted into the second receiving cavity 231 through this opening, improving the installation efficiency and reducing the installation difficulty. Furthermore, the second receiving portion 23 surrounds the outer periphery of the capacitor, ensuring a safe distance between the capacitor and other components, isolating the heat released by the capacitor during operation, and keeping external dust and moisture outside the capacitor to prevent damage, thus improving the reliability and safety performance of the charger. It also prevents the capacitor from shifting laterally or tilting during vibration, or from colliding with other components and causing damage, further improving the reliability of the charger.

[0039] Furthermore, the second receiving portion 23 is provided with a second chamfer 232 to facilitate the installation of the capacitor component.

[0040] According to some embodiments of the present invention, the insulating member 20 further includes: a plurality of first reinforcing ribs 24 and a plurality of second reinforcing ribs 25.

[0041] The first receiving part 22 and the second receiving part 23 are connected to the main body part 21 by a plurality of first reinforcing ribs 24, and the first receiving part 22 is connected to the second receiving part 23 by a plurality of second reinforcing ribs 25.

[0042] like Figure 3 and Figure 6 As shown, there can be three first reinforcing ribs 24, but it is not limited to this. The first receiving part 22 is connected to the main body part 21 through two first reinforcing ribs 24. The two first reinforcing ribs 24 are spaced apart along the length of the first receiving part 22. The second receiving part 23 is connected to the main body part 21 through another first reinforcing rib 24. The height of the side of the first reinforcing rib 24 connected to the first receiving part 22, the second receiving part 23 or the main body part 21 gradually increases to increase the contact area between the first reinforcing rib 24 and the first receiving part 22, the second receiving part 23 or the main body part 21, effectively improving the overall structural strength of the insulating component 20. During the use of the charger, even if it is subjected to external forces such as vibration and collision, the insulating component 20 is not easily deformed or damaged, thereby better maintaining the relative position of each part and ensuring stable support and protection for internal components such as transformers or capacitors, thus improving the working reliability of the charger.

[0043] Furthermore, there can be two second reinforcing ribs 25, arranged in parallel, with the second reinforcing ribs 25 extending along their length (e.g., Figure 3 The height of the second reinforcing rib 25 gradually increases on both sides (in the left and right directions) to increase the contact area between the second reinforcing rib 25 and the first receiving part 22 or the second receiving part 23, effectively improving the overall structural strength of the insulating component 20. During the use of the charger, even if subjected to external forces such as vibration and collision, the insulating component 20 is not easily deformed or damaged, thereby better maintaining the relative position of each part, ensuring stable support and protection for internal components such as transformers or capacitors, and improving the working reliability of the charger.

[0044] According to some embodiments of the present invention, the circuit assembly 100 of the charger further includes an extension 26, which is disposed on the side of the first receiving cavity 224 away from the main body 21. The extension 26 extends along the thickness direction of the main body 21 and is connected to the first receiving portion 22 and the second receiving portion 23. The insulating member 20 also includes a plurality of third reinforcing ribs 27, and the first receiving portion 22 and the second receiving portion 23 are connected to the extension 26 through the plurality of third reinforcing ribs 27.

[0045] like Figure 3As shown, the extension 26 is perpendicular to the main body 21 and is located on the side adjacent to the length direction of the main body 21. The extension 26 is provided with a square through hole 11 and an arc-shaped through hole 11, which correspond to the first receiving part 22 and the second receiving part 23, respectively. There can be four third reinforcing ribs 27, but it is not limited to this. Among them, three third reinforcing ribs 27 are connected to the third connecting section 223 of the first receiving part 22, and the three reinforcing ribs are spaced apart along the length direction of the third connecting section 223. The other third reinforcing rib 27 is connected to the second receiving part 23. The third reinforcing rib 27 is located on the side of the first receiving part 22 or the second receiving part 23 away from the main body 21, and the height of the side of the third reinforcing rib 27 connected to the first receiving part 22 or the second receiving part 23 in the length direction gradually increases.

[0046] Therefore, the setting of the third reinforcing rib 27 effectively improves the overall structural strength of the insulating component 20. During the use of the charger, even if subjected to external forces such as vibration and collision, the insulating component 20 is not easily deformed or damaged, thereby better maintaining the relative position of each part, ensuring stable support and protection for internal components such as transformers or capacitors, and improving the working reliability of the charger.

[0047] According to some embodiments of the present invention, at least one limiting protrusion 211 is provided at the end of the main body 21. The limiting protrusion 211 protrudes in a direction away from the center of the main body 21 and is adapted to cooperate with the limiting groove of the outer shell.

[0048] like Figure 3 As shown, there can be two limiting protrusions 211, but it is not limited to this. The two limiting protrusions 211 are along the width direction of the main body 21 (for example, Figure 3 (The left and right direction) spacing settings.

[0049] The limiting protrusion 211 cooperates with the limiting groove of the outer shell to play a precise positioning role when the insulating component 20 is assembled with the outer shell, ensuring that the insulating component 20 is installed in the outer shell in an accurate position, avoiding the insulating component 20 from failing to perform its insulation and support functions due to assembly deviation, and also facilitating rapid assembly in the production process and improving production efficiency.

[0050] Moreover, once the circuit components 100 of the charger are installed, the limiting protrusion 211 is adapted to be locked in the limiting groove of the outer shell to prevent the circuit components 100 from shaking inside the outer shell, thereby ensuring the relative position stability of the internal circuit components 100 (such as the circuit board 10, transformer, etc.) of the charger and improving the overall structural reliability of the charger.

[0051] According to some embodiments of the present invention, in the thickness direction of the main body 21, at least one rib 212 is provided on the side of the main body 21 adjacent to the first receiving portion 22, and the rib 212 extends along the height direction of the main body 21.

[0052] like Figure 3 As shown, there can be two ribs 212, but it is not limited to this. The ribs 212 are elongated structures. When assembling the insulating component 20 and the circuit board 10, the ribs 212 can act as limiting and clamping structures, preventing the insulating component 20 from easily falling off during assembly, thus improving the overall structural reliability of the charger. At the same time, it also ensures that the relative position of the insulating component 20 and the circuit board 10 is fixed, ensuring that the installation position of the insulating component 20 and the circuit board 10 is accurate, avoiding the insulating component 20 from failing to effectively perform its insulation and support functions due to assembly deviations, and also facilitating rapid assembly during the production process, thereby improving production efficiency.

[0053] Specifically, the main body 21 is provided with at least one third chamfer 213, and the circuit board 10 abuts against the main body 21 through the third chamfer 213.

[0054] like Figure 3 As shown, there can be four third chamfers 213, which are respectively located on both sides of the length of the main body 21 and connected to the two circuit boards 10 respectively. The setting of the third chamfers 213 plays a positioning role in the installation of the circuit boards 10, ensuring that the installation position of the insulating component 20 and the circuit board 10 is accurate, avoiding the insulating component 20 from failing to effectively perform its insulation and support functions due to assembly deviations, and also facilitating rapid assembly in the production process and improving production efficiency.

[0055] It should be noted that the insulating component 20 can be a one-piece molded part made of insulating plastic material, and this application does not impose specific restrictions on it.

[0056] The charger according to a second aspect of the present invention includes a circuit assembly 100 of the charger according to a first aspect of the present invention.

[0057] The charger according to the present invention improves the safety performance and operational reliability of the charger by adopting the circuit component 100 of the charger, which is beneficial to the miniaturization design of the charger.

[0058] Other components and operations of the charger according to embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0059] The electrical device (not shown) according to a third aspect embodiment of the present invention includes a charger according to a second aspect embodiment of the present invention.

[0060] According to the embodiments of the present invention, by adopting the above-mentioned charger, the safety performance and operational reliability of the electrical equipment are improved, which is conducive to the miniaturization design of the electrical equipment.

[0061] It should be noted that electrical equipment may include vehicles, etc., and this application does not impose specific restrictions on this.

[0062] Other components and operations of the electrical equipment according to the embodiments of this utility model are known to those skilled in the art and will not be described in detail here.

[0063] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0064] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0065] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0066] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A circuit assembly of a charger, characterized by, include: At least two circuit boards are arranged along the thickness direction of the circuit boards, and adjacent circuit boards are electrically connected by conductive elements. At least one insulating element is disposed between two adjacent circuit boards; Each of the circuit boards has a through hole formed therein, and one end of the insulating element passes through the through hole to be adapted to connect to the housing.

2. The circuit assembly of the charger according to claim 1, wherein, The insulating component includes: The main body extends along the thickness direction of the circuit board, and the end of the main body passes through the through hole; A first receiving portion is provided on one side of the main body in the thickness direction and extends along the length direction of the main body, wherein the first receiving portion and the main body together define a first receiving cavity, and the first receiving cavity is suitable for installing a transformer.

3. The circuit assembly of the charger of claim 2, wherein, The first receiving portion includes: A first connecting segment is connected to the main body portion and extends along the length direction of the main body portion; A second connecting segment is connected to the first connecting segment, and the second connecting segment extends along the thickness direction of the main body. A third connecting segment is connected to the second connecting segment, and the third connecting segment extends along the length direction of the main body. The first connecting segment and the third connecting segment are located on the same side of the second connecting segment, and the length of the first connecting segment is less than the length of the third connecting segment.

4. The circuit assembly of the charger of claim 2, wherein, The insulating component also includes: The second receiving portion is located on the same side of the thickness direction of the main body portion as the first receiving portion, and the second receiving portion has a second receiving cavity adapted to mount a capacitor.

5. The circuit assembly of the charger according to claim 4, wherein, The insulating component further includes: Multiple first reinforcing ribs are provided, and the first receiving portion and the second receiving portion are connected to the main body portion through the multiple first reinforcing ribs. Multiple second reinforcing ribs are provided, and the first receiving portion is connected to the second receiving portion via multiple second reinforcing ribs.

6. The circuit assembly of the charger according to claim 5, wherein, Also includes: An extension portion is provided on the side of the first receiving cavity away from the main body portion, the extension portion extends along the thickness direction of the main body portion and is connected to the first receiving portion and the second receiving portion; The insulating component further includes a plurality of third reinforcing ribs, and the first receiving portion and the second receiving portion are connected to the extension portion through the plurality of the third reinforcing ribs.

7. A circuit assembly for a charger according to any one of claims 2 to 6, wherein The end of the main body is provided with at least one limiting protrusion, which protrudes in a direction away from the center of the main body and is adapted to cooperate with the limiting groove of the outer shell.

8. The circuit assembly of the charger according to claim 7, wherein, In the thickness direction of the main body, at least one rib is provided on the side of the main body adjacent to the first receiving portion, and the rib extends along the height direction of the main body.

9. A charger characterized by comprising: Includes the circuit components of the charger according to any one of claims 1-8.

10. An electric device, characterized by Includes the charger according to claim 9.

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