Charger

Abstract

The utility model provides a charger, which is helpful for realizing compact design of each part in the charger, fully utilizing limited space and further helpful for the development of the charger towards the miniaturization direction. Meanwhile, the transformer and the AC pin are separated through the first capacitor, electromagnetic interference generated by an electronic component can be effectively prevented from being coupled to the AC pin in the charging state, the electromagnetic interference is further prevented from influencing the mains supply through the AC pin, and the charging performance of the charger is guaranteed; noise generated during operation of electronic components can be isolated, the noise is prevented from being radiated to the surrounding environment, the operation noise of the charger in the charging state is reduced, and the user experience is improved.

Description

Technical Field

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

[0002] Nowadays, the number of smart devices that need charging in our daily lives is increasing. Smartphones, laptops, tablets, and other smart devices, as well as power tools and car vacuum cleaners, all require chargers. A charger is a static converter that uses power semiconductor devices to convert alternating current (AC) with a fixed voltage and frequency into direct current (DC).

[0003] In related technologies, when a charger is charging, the operation of its internal electronic components (such as transformers) generates electromagnetic interference. This electromagnetic interference can directly enter the mains power supply through the AC (alternating current) plug, leading to a decrease in charging performance and even affecting the stability and safety of the power supply. Utility Model Content

[0004] This application provides a charger designed to improve the problem of electromagnetic interference generated by existing chargers during charging.

[0005] This application provides a charger, including:

[0006] The housing has a mounting cavity;

[0007] The main control circuit module is housed within the mounting cavity. The main control circuit module includes a first substrate and a transformer and a plurality of first capacitors disposed on the first substrate.

[0008] A rectifier circuit module is housed within the mounting cavity. The rectifier circuit module includes a second substrate and a plurality of second capacitors disposed on the second substrate. The second substrate and the first substrate are disposed opposite to each other.

[0009] An AC input circuit module is housed within the mounting cavity and includes a third substrate and an AC pin connected to the third substrate.

[0010] The transformer and the plurality of first capacitors are disposed on the surface of the first substrate facing the second substrate, and the second capacitors are disposed on the surface of the second substrate facing the first substrate. The plurality of first capacitors and the plurality of second capacitors surround the outside of the transformer, and the plurality of first capacitors separate the transformer and the AC pin.

[0011] In some embodiments, an output circuit module housed within the mounting cavity is also included, the output circuit module including a fourth substrate and an output interface electrically connected to the fourth substrate;

[0012] A portion of the first capacitor and a plurality of the second capacitors are spaced apart on the side of the transformer facing away from the AC pin, wherein the fourth substrate is located between the plurality of the second capacitors and the transformer.

[0013] In some embodiments, the output interface includes multiple TPC interfaces, some of which protrude through the gap between two adjacent second capacitors, and others of which protrude through the gap between the first capacitor and the second capacitor.

[0014] In some embodiments, the output interface further includes a TPA interface, which is fixed to the second substrate and located to the side of the fourth substrate.

[0015] In some embodiments, the third substrate is connected to the first substrate and the second substrate respectively on opposite sides.

[0016] In some embodiments, the first substrate and the second substrate are spaced apart along a first direction, the third substrate is located on the same side edge of the first substrate and the second substrate and extends along a second direction, and the fourth substrate extends from the edge of the third substrate along a third direction.

[0017] The fourth substrate is inserted into the first substrate and the second substrate on opposite sides, respectively, and the first direction, the second direction and the third direction are perpendicular to each other.

[0018] In some embodiments, an insulating support is also included, with the first substrate and the second substrate connected to each other on both sides, and located close to each other on the third substrate and the fourth substrate.

[0019] In some embodiments, there are two transformers, with one transformer located between the other transformer and the third substrate.

[0020] In some of these embodiments, the first capacitor is an aluminum electrolyte capacitor.

[0021] In some embodiments, a heat dissipation module is also included;

[0022] The heat dissipation module covers the surface of the first substrate facing away from the second substrate, the surface of the second substrate facing away from the first substrate, and the transformer.

[0023] The charger of this application, through the relative arrangement of the first and second substrates, places components such as transformers and capacitors within the space formed by the two substrates. This facilitates a compact design of the internal components of the charger, making full use of limited space and thus contributing to the miniaturization of the charger. At the same time, the first capacitor separates the transformer and the AC plug, effectively preventing electromagnetic interference generated by electronic components during charging from coupling to the AC plug, thereby avoiding electromagnetic interference affecting the mains power through the AC plug and ensuring the charging performance of the charger. It also isolates the noise generated by electronic components during operation, preventing noise from radiating to the surrounding environment, reducing the operating noise of the charger during charging, and improving the user experience. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0025] Figure 1 This is a schematic diagram of the charger structure in one embodiment of this application;

[0026] Figure 2 This is an exploded view of a portion of the charger structure in one embodiment of this application;

[0027] Figure 3 This is a partial structural diagram of a charger according to one embodiment of this application;

[0028] Figure 4 for Figure 3 A diagram from another perspective;

[0029] Figure 5 This is an exploded view of a portion of the charger structure in one embodiment of this application.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Charger; 10. Housing; 101. Mounting cavity;

[0032] 20. Main control circuit module; 21. First substrate; 211. First capacitor; 212. Transformer;

[0033] 30. Rectifier circuit module; 31. Second substrate; 311. Second capacitor;

[0034] 40. AC input circuit module; 41. Third baseboard; 42. AC connector;

[0035] 50. Output circuit module; 51. Fourth substrate; 511. Output interface; 511a. TPC interface; 511b. TPA interface;

[0036] 60. Insulating support;

[0037] 70. Heat dissipation components;

[0038] D1, First Direction; D2, Second Direction; D3, Third Direction.

[0039] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0041] Nowadays, the number of smart devices that need charging in daily life is increasing. Smart devices such as smartphones, laptops, and tablets, as well as power tools and car vacuum cleaners, all need to be charged using charger 1. Charger 1 refers to a static converter that uses power semiconductor devices to convert alternating current with fixed voltage and frequency into direct current.

[0042] In related technologies, when charger 1 is charging, its internal electronic components generate electromagnetic interference during operation. This electromagnetic interference can directly enter the mains power supply through AC pin 42, leading to a decrease in charging performance and even affecting the stability and safety of the power supply.

[0043] Charger 1 can be of various types. In this embodiment, charger 1 can be a universal serial bus charger, wireless charger, portable charger, car charger, and solar charger, etc.

[0044] To resolve the above issues, please refer to [link / reference]. Figures 1 to 5 This application proposes a charger 1, which includes a housing 10, a main control circuit module 20, a rectifier circuit module 30, and an AC (i.e., alternating current) input circuit module.

[0045] The housing 10, also known as the outer shell of the charger 1, has an internal mounting cavity 101, providing installation space for the internal structure of the charger 1. The housing 10 can be made of plastic or metal; specifically, it can be made of plastic. This makes the housing 10 lighter, facilitating user carrying and use of the charger 1. Furthermore, the plastic material provides insulation, reducing the risk of electric shock. The plastic material is primarily made of polycarbonate, polystyrene, polypropylene, polyethylene, and polyvinyl chloride, all of which possess good mechanical strength, stability, hardness, and durability. The housing 10 can be integrally injection molded, resulting in high structural strength and making it less prone to damage. This protects other components within the housing 10, thus extending the charger 1's service life.

[0046] The main control circuit module 20 is housed within the mounting cavity 101, and the housing 10 protects the main control circuit module 20 from exposure to air. In this embodiment, the main control circuit module 20 includes a first substrate 21, a transformer 212, and first capacitors 211. The first substrate 21 provides physical mounting space for the electronic components in the main control circuit module 20; the first substrate 21 can be a PCB (printed circuit board). The transformer 212 is disposed on the first substrate 21 and is used to change the voltage of the input current and output the required voltage. Multiple first capacitors 211 are disposed on the first substrate 21 and on the same side of the first substrate 21 as the transformer 212.

[0047] The rectifier circuit module 30 is housed within the mounting cavity 101. The housing 10 protects the rectifier circuit module 30 from exposure to air. In this embodiment, the rectifier circuit module 30 includes a second substrate 31 and second capacitors 311. The second substrate 31 provides physical mounting space for the electronic components in the rectifier circuit module 30. The second substrate 31 and the first substrate 21 are disposed opposite each other. The second substrate 31 may be a PCB board. Multiple second capacitors 311 are disposed on the second substrate 31 and located on the surface of the second substrate 31 facing the first substrate 21. The transformer 212 and the multiple first capacitors 211 are disposed on the surface of the first substrate 21 facing the second substrate 31.

[0048] With the above structural arrangement, the transformer 212, the first capacitor 211 and other components on the first substrate 21, as well as the second capacitor 311 and other components on the second substrate 31, are all located between the first substrate 21 and the second substrate 31. This helps to achieve a compact design of the internal components of the charger 1, make full use of the limited space, and thus achieve miniaturization and high performance of the charger 1.

[0049] The AC input circuit module 40 is housed within the mounting cavity 101. The housing 10 protects the AC input circuit module 40 from exposure to air. In this embodiment, the AC input circuit module 40 includes a third substrate 41 and an AC pin 42. The third substrate 41 provides physical mounting space for the electronic components in the AC input circuit module 40; the third substrate 41 may be a PCB board. The AC pin 42 is a key component for connecting the charger 1 to AC mains power and providing AC power to the charger 1. The AC pin 42 is located on the side of the first capacitor 211 facing away from the transformer 212, i.e., the first capacitor 211 separates the transformer 212 and the AC pin 42.

[0050] In this way, it can effectively prevent electromagnetic interference generated by electronic components during charging from coupling to AC plug 42, thereby avoiding electromagnetic interference from affecting the mains power through AC plug 42 and ensuring the charging performance of charger 1; it can also isolate the noise generated by electronic components during operation, prevent noise from radiating to the surrounding environment, reduce the operating noise of charger 1 during charging, and improve the user experience.

[0051] The charger 1 of this application, through the relative arrangement of the first substrate 21 and the second substrate 31, places components such as the transformer 212 and the capacitor within the space formed by the two substrates. This helps to achieve a compact design of the internal components of the charger 1, making full use of the limited space, and thus helping the charger 1 to develop towards miniaturization. At the same time, the first capacitor 211 separates the transformer 212 and the AC plug 42, which can effectively prevent electromagnetic interference generated by electronic components during charging from coupling to the AC plug 42, thereby avoiding electromagnetic interference affecting the mains power through the AC plug 42 and ensuring the charging performance of the charger 1. It can also isolate the noise generated by electronic components during operation, prevent noise from radiating to the surrounding environment, reduce the operating noise of the charger 1 during charging, and improve the user experience.

[0052] In some implementations, see Figure 2 The first substrate 21 and the second substrate 31 are along the first direction (e.g. Figure 2 The third substrate 41 is located on the same side edge of the first substrate 21 and the second substrate 31 and is spaced apart along the second direction (e.g., in the D1 direction). Figure 2 The first direction extends in the D2 direction. The second direction is perpendicular to the first direction. This arrangement helps to achieve a compact design of the internal components of the charger 1, promoting the miniaturization of the charger 1. Furthermore, the first substrate 21 and the second substrate 31 are respectively connected to the opposite sides of the third substrate 41, making the structure formed by the first substrate 21, the second substrate 31, and the third substrate 41 more stable and protecting the internal electronic components.

[0053] In some implementations, see reference to Figures 3 to 5 The charger 1 also includes an output circuit module 50, which is housed within a mounting cavity 101. The housing 10 protects the output circuit module 50 from exposure to air. The output circuit module 50 includes a fourth substrate 51 and an output interface 511. The fourth substrate 51 provides physical mounting space for the electronic components within the output circuit module 50; the fourth substrate 51 may be a PCB board. The output interface 511 is a component for connecting to an external device to be charged and is electrically connected to the fourth substrate 51.

[0054] In some embodiments, a portion of the first capacitor 211 and multiple second capacitors 311 are spaced apart on the side of the transformer 212 facing away from the AC plug 42. The fourth substrate 51 is located between the multiple second capacitors 311 and the transformer 212, making full use of the limited space and helping to achieve a compact design of the internal components of the charger 1, thus promoting the miniaturization of the charger 1. In addition, the fourth substrate 51 can block or slow down the transfer of heat from heat sources such as the transformer 212 to the first capacitors 211, second capacitors 311, and output interface 511, reducing the temperature at the output interface 511 and providing users with a better charging experience.

[0055] In some implementation methods, such as Figure 4 As shown, the output interface 511 and the AC plug 42 are located on opposite sides of the charger 1, which can further reduce electromagnetic interference to the AC plug 42 when the external device is charging, and ensure charging performance.

[0056] In some implementations, see Figure 4 The fourth substrate 51 extends from the edge of the third substrate 41 along a third direction (e.g., Figure 2 The third direction extends from the first direction (D3 direction); wherein the third direction is perpendicular to the first direction and the second direction respectively, that is, the first direction, the second direction and the third direction are perpendicular to each other. Furthermore, the opposite sides of the fourth substrate 51 are respectively inserted into the first substrate 21 and the second substrate 31, which can make the structure formed by the first substrate 21, the second substrate 31 and the fourth substrate 51 more stable and can protect the internal electronic components.

[0057] Thus, the first substrate 21, the second substrate 31, the third substrate 41 and the fourth substrate 51 are electrically connected to each other to achieve circuit connection, and together they form a cuboid-like structure. The shape of the mounting cavity 101 inside the housing 10 is adapted to this structure, making the entire circuit board structure compact, reducing space waste, and providing strong support for the miniaturization of the charger 1, making it easier to integrate into various small electronic devices or use as a portable charging device.

[0058] In some implementations, please refer to Figure 4 The output interface 511 includes multiple TPC interfaces 511a (i.e., Type-C interfaces). This configuration allows one charger 1 to charge multiple devices simultaneously, improving charging efficiency. It also reduces the need to repeatedly purchase chargers 1, making it more convenient for users and optimizing the user experience. Some TPC interfaces 511a protrude through the gap between two adjacent second capacitors 311, while others protrude through the gap between the first capacitor 211 and the second capacitor 311. This layout provides a degree of heat insulation protection.

[0059] It should be noted that this application does not impose a specific limit on the number of TPC interfaces 511a, and those skilled in the art can adjust it flexibly according to actual product needs. For example, two, three, or other numbers of TPC interfaces 511a may be provided.

[0060] In some implementations, please refer to Figure 4 The output interface 511 also includes a TPA interface 511b (i.e., a Type-A interface). This design not only allows the charger 1 to be compatible with various types of external devices, enabling it to charge multiple devices simultaneously, but also flexibly adapts to different usage scenarios, facilitating the versatility of the charger 1's functions and thus improving the user experience. Furthermore, the TPA interface 511b is fixed to the second substrate 31 and located to the side of the fourth substrate 51. Placing the TPA interface 511b on the second substrate 31 further improves the utilization of the internal space of the charger 1, resulting in a more compact structure. Simultaneously, due to the relatively large size of the TPA interface 511b, this arrangement allows it to be flush with the TPC interface 511a, enhancing the aesthetic appearance of the charger 1.

[0061] It should be noted that the type of output interface 511 in this application embodiment is not limited to this. The above is only exemplary and not limiting. The output interface 511 may also include at least one of Lightning interface and MicroUSB interface. Those skilled in the art can make flexible adjustments.

[0062] In some embodiments, the first capacitor 211 is an aluminum electrolyte capacitor. Firstly, aluminum electrolyte capacitors have the advantage of strong temperature adaptability, enabling the charger 1 to cope with different external environments and improving its applicability. Secondly, when the aluminum oxide dielectric layer of the aluminum electrolyte capacitor is partially damaged, the electrolyte can repair the defect through an oxidation reaction after energization, exhibiting strong self-healing ability, which can extend the service life of the charger 1 and improve its reliability. Thirdly, aluminum electrolyte capacitors also have the advantage of low cost, helping to reduce the production cost of the charger 1.

[0063] In some embodiments, the charger 1 further includes an insulating support 60, with the first substrate 21 and the second substrate 31 connected to its two sides respectively, and located close to the third substrate 41 and the fourth substrate 51. On one hand, this insulating support can isolate the third substrate 41 and the fourth substrate 51, preventing electromagnetic interference between them during charging and ensuring charging performance. On the other hand, it can also support the first substrate 21 and the second substrate 31, further improving structural stability. The material of the insulating support 60 is not specifically limited in this application; it can be made of plastic materials such as polycarbonate, polystyrene, polypropylene, polyethylene, or polyvinyl chloride to ensure good insulation properties.

[0064] In some embodiments, there are two transformers 212. This facilitates multi-stage power conversion, allowing the charger 1 to output DC power of different levels for user use; it also improves charging efficiency and optimizes charging performance. One transformer 212 is located between the other transformer 212 and the third substrate 41, which contributes to the compactness of the charger 1's internal structure, further reducing its size and allowing it to accommodate more electronic components, thus achieving higher power output.

[0065] By splitting a single transformer 212 into two smaller transformers 212, the two smaller transformers 212 can be smaller in size than a single high-power transformer 212. Alternatively, a more flexible layout can be used to achieve a more compact circuit design within a limited space, helping to reduce the overall size of the charger 1 and making it more portable. The smaller transformers 212 are also generally lighter in weight. Using two smaller transformers 212 instead of one larger transformer 212 can reduce the weight of the charger 1 to some extent and improve the user experience.

[0066] The two transformers 212 can share the load, with each transformer 212 handling a portion of the power. Compared to a single transformer 212 handling all the power, this reduces the workload of each transformer 212 under the same total power output, allowing it to operate in a more efficient range. This improves the overall power conversion efficiency and reduces energy loss. Furthermore, based on actual power requirements, more suitable magnetic cores can be selected for each transformer 212, increasing core utilization, reducing core saturation, and further enhancing the operating efficiency and stability of the transformer 212.

[0067] A single transformer 212 generates a significant amount of heat during operation. If only one transformer 212 is used, the heat will concentrate in one place, leading to excessively high local temperatures. However, by using two transformers 212, the heat can be distributed to two different locations, reducing the local temperature and making it easier to dissipate heat, thus improving the heat dissipation performance of the charger 1.

[0068] The two transformers 212, serving as the main heat sources, are arranged around the first capacitor 211 and the second capacitor 311 between the first substrate 21 and the second substrate 31. This helps to disperse heat to the surrounding area and prevent heat from concentrating in one place, thus avoiding localized overheating. At the same time, the reasonable layout of the third substrate 41 and the fourth substrate 51 also helps to optimize the heat source distribution and improve the heat dissipation uniformity of the entire charger 1.

[0069] Furthermore, the arrangement of the first capacitor 211 and the second capacitor 311 around the transformer 212 can shorten the critical signal path, reduce the parasitic inductance and parasitic resistance of the line, improve the high-frequency performance and efficiency of the circuit, and help to achieve efficient energy conversion of the charger 1, thereby improving charging speed and performance.

[0070] In some implementations, please refer to Figure 2 The charger 1 also includes a heat dissipation module housed within the mounting cavity 101. The heat dissipation module covers the surface of the first substrate 21 facing away from the second substrate 31 and the surface of the second substrate 31 facing away from the first substrate 21. This ensures close contact between the heat dissipation module and the circuit boards, facilitating rapid heat conduction from the electronic components on the first substrate 21 and the second substrate 31 during operation, thus improving heat dissipation efficiency. Simultaneously, it effectively reduces the temperature in the vicinity of the first substrate 21 and the second substrate 31, protecting the electronic components on the first substrate 21 and the second substrate 31 from high temperatures and contributing to improved safety of the charger 1.

[0071] like Figure 2 As shown, the heat dissipation module is also covered and installed on the transformer 212, which is beneficial to the heat generated by the fast transformer 212 during operation and improves the heat dissipation efficiency; at the same time, it can also prevent the transformer 212 from being affected by high temperature, which helps to improve the safety and reliability of the charger 1.

[0072] In this application, the material of the heat dissipation component 70 is not specifically limited. The heat dissipation component can be made of metal materials, such as copper, to give it good thermal conductivity and improve heat transfer efficiency.

[0073] In some implementations, the main control circuit module 20 typically includes an AC-DC converter module, a protocol chip, and a buck-boost module, while the rectifier circuit module 30 typically includes a switching module. The AC-DC converter module is electrically connected to the mains power supply and converts the input AC voltage into a stable DC voltage through rectification and filtering. The commonly used mains power is 220 volts, and the AC-DC converter module can power the protocol chip, buck-boost module, and switching module.

[0074] Furthermore, a protocol chip refers to a module that integrates logic control circuitry and charging protocol programs. The charging protocols supported by the protocol chip include USB PD (Power Delivery) charging.

[0075] The protocol chip supports at least one of the following: electric charging protocol, QC (Quick Charge) charging protocol, FCP (Fast Charge Protocol) protocol, SCP (Super Charge Protocol) protocol, and Mi Turbo Charge protocol; of course, the charging protocols supported by the protocol chip are not limited to those mentioned above, and this application does not make any specific limitation in this regard.

[0076] The step-up / step-down module refers to the module that adjusts the output voltage. Specifically, both the protocol chip and the step-up / step-down module are electrically connected to the AC-DC converter module, so that the AC-DC converter module supplies power to the protocol chip and the step-up / step-down module; the switch module is electrically connected to the output interface 511 and the step-up / step-down module, and the switch module also realizes bidirectional signal communication with the protocol chip; the output interface 511 can realize signal communication with external devices and the protocol chip.

[0077] The specific working principle of charger 1 is as follows: the AC-DC converter module converts AC mains power into stable DC power to power the protocol chip, buck-boost module, and switching module; when an external device is electrically connected to any output interface 511, the protocol chip communicates with the external device through the output interface 511 to identify that the external device is connected to any output interface 511; the protocol chip controls the buck-boost module to adjust the output voltage to match the output voltage of the external device; and since the switching module and the protocol chip communicate bidirectionally, the protocol chip can control the switching module to turn on. That is, after the protocol chip recognizes that the output voltage of the buck-boost module conforms to the charging protocol of the external device, the protocol chip controls the switching module to turn on so that charger 1 can charge the external device.

[0078] It should be noted that the switching module may include one switching element (not shown in the figure), or the switching module may include multiple switching elements. This application embodiment does not specifically limit the number of switching elements. For example, when the switching module may include one switching element, any output interface 511 is connected to an external device, and the protocol chip recognizes that the output voltage of the buck-boost module conforms to the charging protocol of the external device, the protocol chip will control the corresponding switching element to conduct, so that the charger 1 can charge the external device. For example, when the switching module may include multiple switching elements, the number of switching elements may correspond to the number of output interfaces 511, that is, one switching element is electrically connected to one output interface 511.

[0079] An external device is electrically connected to any output interface 511, and the protocol chip recognizes that the output voltage of the buck-boost module conforms to the charging protocol of the external device. The protocol chip can control the switching element corresponding to the output interface 511 connected to the external device to be turned on, so that the charger 1 can charge the external device. Furthermore, when the protocol chip controls the corresponding switching element to be turned on, the protocol chip also controls the other switching elements to be turned off, so that the charger 1 cannot charge the external device through the other output interfaces 511, thereby reducing the probability of short circuit in the charger 1 and ensuring the charging safety of the charger 1.

[0080] In other embodiments, if multiple external devices are simultaneously connected to the output interface 511, the protocol chip communicates with the external devices via the output interface 511 to identify that multiple external devices are connected simultaneously. In this case, the protocol chip controls one or more switching elements to simultaneously turn off, preventing the charger 1 from charging multiple external devices at the same time, thus ensuring the charging safety of the charger 1. It should be noted that the number of switching elements corresponds to the number of buck-boost modules. That is, one switching element is electrically connected to one buck-boost module. After the protocol chip identifies that the output voltage of the buck-boost module conforms to the charging protocol of the external device, the protocol chip can control the corresponding switching element to turn on, so that the charger 1 can charge the external device.

[0081] The switching element can be a MOSFET (Metal-Oxide-Semiconductor), a bipolar junction transistor (BJT), or a relay, or other devices or circuits with switching functions. This application does not specifically limit the specific switching element.

[0082] In the description of this application, it should be understood that if terms such as "upper," "lower," "left," "right," "front," and "rear" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application 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. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0083] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as implying or suggesting relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0084] In the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0085] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0086] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A charger, characterized in that, include: The housing has a mounting cavity; The main control circuit module is housed within the mounting cavity. The main control circuit module includes a first substrate and a transformer and a plurality of first capacitors disposed on the first substrate. A rectifier circuit module is housed within the mounting cavity. The rectifier circuit module includes a second substrate and a plurality of second capacitors disposed on the second substrate. The second substrate and the first substrate are disposed opposite to each other. as well as An AC input circuit module is housed within the mounting cavity. The AC input circuit module includes a third substrate and an AC pin connected to the third substrate. The transformer and the plurality of first capacitors are disposed on the surface of the first substrate facing the second substrate, and the second capacitors are disposed on the surface of the second substrate facing the first substrate. The plurality of first capacitors and the plurality of second capacitors surround the outside of the transformer, and the plurality of first capacitors separate the transformer and the AC pin.

2. The charger according to claim 1, characterized in that, It also includes an output circuit module housed within the mounting cavity, the output circuit module comprising a fourth substrate and an output interface electrically connected to the fourth substrate; At least two of the first capacitors and a plurality of the second capacitors are spaced apart on the side of the transformer facing away from the AC pin, wherein the fourth substrate is located between the plurality of the second capacitors and the transformer.

3. The charger according to claim 2, characterized in that, The output interface includes multiple TPC interfaces. Some of the TPC interfaces protrude through the gap between two adjacent second capacitors, while other TPC interfaces protrude through the gap between the first capacitor and the second capacitor.

4. The charger according to claim 3, characterized in that, The output interface also includes a TPA interface, which is fixed to the second substrate and located on the side of the fourth substrate.

5. The charger according to any one of claims 2 to 4, characterized in that, The first substrate and the second substrate are respectively connected to the opposite sides of the third substrate.

6. The charger according to claim 5, characterized in that, The first substrate and the second substrate are spaced apart along a first direction, the third substrate is located on the same side edge of the first substrate and the second substrate and extends along a second direction, and the fourth substrate extends from the edge of the third substrate along a third direction. The fourth substrate is inserted into the first substrate and the second substrate on opposite sides, respectively, and the first direction, the second direction and the third direction are perpendicular to each other.

7. The charger according to claim 6, characterized in that, It also includes an insulating support, which is connected to the first substrate and the second substrate on both sides and is located close to the third substrate and the fourth substrate.

8. The charger according to any one of claims 1 to 4, characterized in that, There are two transformers, one of which is located between the other transformer and the third substrate.

9. The charger according to any one of claims 1 to 4, characterized in that, The first capacitor is an aluminum electrolyte capacitor.

10. The charger according to any one of claims 1 to 4, characterized in that, It also includes a heat dissipation module; The heat dissipation module covers the surface of the first substrate facing away from the second substrate, the surface of the second substrate facing away from the first substrate, and the transformer.

Images