Electric all-terrain vehicle and charger thereof
By adopting a cross-layout circuit board design in the charger of the electric all-terrain vehicle, the problem of large space occupation of the AC port filter module is solved, achieving more efficient space utilization and electromagnetic compatibility.
Patent Information
- Application Number
- CN202520346629.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-02-28
AI Technical Summary
The existing AC port filter modules for electric all-terrain vehicles have large common-mode inductors and X capacitors, which result in a large space occupied in the charger and cannot meet the electromagnetic compatibility test requirements.
The first and second circuit boards are arranged facing each other and electrically connected by conductive connectors. The first and second component groups are arranged crosswise in the mounting area, so that the common mode inductor and X capacitor partially overlap or cross in the reference plane, reducing space occupation.
This effectively reduces the overall space occupied by the AC port filtering module, improves the space utilization of the charger, and meets electromagnetic compatibility testing requirements.
Smart Images
Figure CN223821486U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of vehicle technology, and more specifically, to an electric all-terrain vehicle and its charger. Background Technology
[0002] Currently, electric all-terrain vehicles (ATVs) are generally divided into two types: pure electric and hybrid. Both types typically include a charger, which is used to connect to an AC power source to charge the ATV's battery. The charger usually contains an AC port filter module, an electrical structure consisting of components such as capacitors, inductors, and varistors interconnected via a circuit board. This module filters out noise signals from the AC power supply, thereby improving the charging efficiency and safety of the ATV.
[0003] To meet electromagnetic compatibility (EMC) testing requirements, AC port filter modules typically have at least two common-mode inductors and at least two X capacitors. However, the large size of the common-mode inductors and X capacitors results in a large length and / or width of the AC port filter module's circuit board, thus occupying a significant amount of space within the charger. Utility Model Content
[0004] In view of this, this application provides an electric all-terrain vehicle and its charger, wherein the AC port filtering module of the charger occupies a small space.
[0005] An embodiment of this application provides a charger, including an input port, an AC port filtering module, a voltage conversion module, and an output port connected in sequence. The AC port filtering module includes a first circuit board, a second circuit board, a conductive connector, a first component group disposed on the first circuit board, and a second component group disposed on the second circuit board. The first circuit board and the second circuit board are arranged facing each other, and the conductive connector is electrically connected to the first circuit board and the second circuit board. The first component group and the second component group each include several components. The area between the first circuit board and the second circuit board is defined as a mounting area, and the first component group and the second component group are disposed within the mounting area. A plane parallel to the first circuit board within the mounting area is defined as a reference plane. At least one component in the first component group and at least one component in the second component group intersect the reference plane, and the orthographic projections of at least one component in the first component group and at least one component in the second component group in the reference plane at least partially overlap.
[0006] In some embodiments of this application, the first element group includes a first common-mode inductor and a first X capacitor, and the second element group includes a second common-mode inductor and a second X capacitor. Both the first common-mode inductor and the second common-mode inductor intersect with the reference plane, and the orthographic projections of the first X capacitor and the second X capacitor in the reference plane at least partially overlap.
[0007] In some embodiments of this application, the first X capacitor or the second X capacitor intersects with the reference plane.
[0008] In some embodiments of this application, the orthographic projections of the first X capacitor and the second common-mode inductor in the reference plane do not overlap, and / or, the orthographic projections of the second X capacitor and the first common-mode inductor in the reference plane do not overlap.
[0009] In some embodiments of this application, the first element group includes a first common-mode inductor, a second common-mode inductor, and a first X capacitor, the second element group includes a second X capacitor, and the mounting area has at least one reference plane, which intersects with the second X capacitor and intersects with at least one of the first common-mode inductor and the second common-mode inductor. The orthographic projections of the first X capacitor and the second X capacitor in the reference plane at least partially overlap.
[0010] In some embodiments of this application, the first circuit board and the second circuit board are substantially parallel, the distance between the first circuit board and the second circuit board along the thickness direction of the first circuit board is defined as L1, the maximum dimension of the first common mode inductor or the second common mode inductor along the thickness direction of the first circuit board is defined as L2, and the ratio of L2 to L1 is 0.7 to 1.
[0011] In some embodiments of this application, the axial direction of the first common-mode inductor and the axial direction of the second common-mode inductor are both substantially perpendicular to the thickness direction of the first circuit board.
[0012] In some embodiments of this application, the first common-mode inductor and the second common-mode inductor are substantially coaxially arranged.
[0013] In some embodiments of this application, the first X capacitor and / or the second X capacitor are disposed between the first common-mode inductor and the second common-mode inductor.
[0014] Embodiments of this application also disclose an electric all-terrain vehicle, including a frame, a body panel, a running system, a power system, and an electrical system; the body panel at least partially covers the frame; the running system is at least partially located below the frame and at least partially connected to the frame; the power system includes a motor and a battery, the motor is at least partially supported by the frame and drives the running system, the battery is at least partially supported by the frame and provides electrical energy to the motor to drive the running system; the electrical system includes a charger provided in any of the above embodiments, the charger having an output port; the output port is electrically connected to the battery.
[0015] The AC port filtering module of the charger in this application, by arranging the first circuit board and the second circuit board facing each other and spaced apart, and by placing the first component group connected to the first circuit board and the second component group connected to the second circuit board between the first circuit board and the second circuit board, makes the maximum outer contour of the whole formed by the first circuit board and the first component group intersect with the maximum outer contour of the whole formed by the second circuit board and the second component group. This makes the layout of the components of the first component group and the components of the second component group more compact in the installation area, thereby reducing the space occupied by the entire AC port filtering module in the charger. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of an electric all-terrain vehicle provided in one embodiment of this application;
[0017] Figure 2 This is a schematic diagram of an electric all-terrain vehicle provided in one embodiment of this application after removing part of its structure;
[0018] Figure 3 This is a schematic diagram showing the connection between the various modules of the charger and the power battery according to an embodiment of this application;
[0019] Figure 4 This is a schematic diagram of the structure of an AC port filtering module provided in one embodiment of this application;
[0020] Figure 5 This is a circuit diagram of the filtering circuit of an AC port filtering module provided in one embodiment of this application;
[0021] Figure 6 This is a partially exploded schematic diagram of an AC port filtering module provided in one embodiment of this application;
[0022] Figure 7 This is a schematic diagram of another AC port filtering module provided in one embodiment of this application. Detailed Implementation
[0023] The technical solutions of the embodiments of this application will be described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.
[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
[0025] The term “and / or” as used herein includes any and all combinations of one or more of the related listed items.
[0026] The terms “first,” “second,” and “third” used in this document are for descriptive purposes only and should not be construed as indicating or implying relative importance. The term “several” used in this document refers to a quantity of one or more.
[0027] The terms "parallel" and "perpendicular" in this article are not strictly mathematical terms. There can be a certain range of error between "parallel" and "perpendicular" here, such as an error within 5°.
[0028] In this article, for the two sides of a circuit board along its own thickness direction, the side on which more components are mounted is defined as the front side of the circuit board, and the other side is defined as the back side of the circuit board.
[0029] In this article, "axial direction of common mode inductor" can be understood as the axial direction of the magnetic ring of common mode inductor, and "radial direction of common mode inductor" can be understood as the radial direction of the magnetic ring of common mode inductor; therefore, when describing two common mode inductors as coaxial, it can be understood as referring to the coaxiality of the magnetic rings of the two common mode inductors.
[0030] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.
[0031] Reference Figure 1 and Figure 2 One embodiment of this application provides an electric all-terrain vehicle 100, including a frame 11, a body cover 12, a running system 13, a power system 14, and an electrical system 15.
[0032] The body panel 12 at least partially covers the frame 11 to form the body structure of the electric all-terrain vehicle 100. The running system 13 includes a front wheel 131 and a rear wheel 132, which are rotatably connected to the frame 11, and at least a portion of the front wheel 131 and the rear wheel 132 are located under the frame 11, so that the front wheel 131 and the rear wheel 132 can support the frame 11.
[0033] The power system 14 includes a drive motor 141 and a power battery 142. Both the drive motor 141 and the power battery 142 are at least partially supported by the frame 11. The drive motor 141 is drive-connected to the front wheel 131 and the rear wheel 132, and the power battery 142 is electrically connected to the drive motor 141. The power battery 142 provides electrical energy to the drive motor 141, causing the drive motor 141 to operate, thereby rotating the front wheel 131 and / or the rear wheel 132, thus moving the frame 11. In some embodiments, the power system 14 may also include an engine, which is supported by the frame 11 and drive-connected to the front wheel 131 and / or the rear wheel 132. The engine cooperates with the drive motor 141 and together transmits power to the front wheel 131 and / or the rear wheel 132 through a transmission structure, causing the front wheel 131 and / or the rear wheel 132 to rotate, thereby moving the frame 11.
[0034] Reference Figure 2 In some embodiments, the electrical system 15 includes a charger 151 supported by the vehicle frame 11. In some embodiments, the electrical system 15 further includes a voltage converter (not shown) and a high-voltage power distribution unit (not shown), all of which are electrically connected to the power battery 142. In some embodiments, the charger 151, voltage converter, and high-voltage power distribution unit are integrated into a single three-in-one module connected to the vehicle frame 11. In other embodiments, the charger 151, voltage converter, and high-voltage power distribution unit may be separate and independent electrical components.
[0035] Reference Figure 3 The charger 151 includes an input port 1511, an AC port filter module 1512, a voltage conversion module 1513, and an output port 1514. The input port 1511 is electrically connected to the input terminal of the AC port filter module 1512. The output terminal of the AC port filter module 1512 is electrically connected to the input terminal of the voltage conversion module 1513. The output terminal of the voltage conversion module 1513 is electrically connected to the output port 1514. The output port 1514 is electrically connected to the power battery 142. The AC port filter module 1512 can filter out noise signals in the AC input power supply to obtain a clean input power supply, thereby ensuring the safety of charging the electric all-terrain vehicle 100.
[0036] Reference Figure 4The AC port filtering module 1512 includes a first circuit board 1512c, a second circuit board 1512d, a conductive connector 1512e, a first component group disposed on the first circuit board 1512c, and a second component group disposed on the second circuit board 1512d; both the first component group and the second component group include multiple components. The front sides of the first circuit board 1512c and the second circuit board 1512d face each other and are spaced apart, and the conductive connector 1512e is electrically connected to the first circuit board 1512c and the second circuit board 1512d.
[0037] The area between the first circuit board 1512c and the second circuit board 1512d is defined as the mounting area 1512f. It can be understood that the two sides of the mounting area 1512f along the thickness direction of the first circuit board 1512c are the front side of the first circuit board 1512c and the front side of the second circuit board 1512d, respectively.
[0038] In some embodiments, the first circuit board 1512c and the second circuit board 1512d are parallel, and a plane within the mounting region 1512f parallel to the first circuit board 1512c is defined as a reference plane 101. In some embodiments, the first circuit board 1512c and the second circuit board 1512d are exactly the same size. It is understood that the orthographic projections of the first circuit board 1512c, the second circuit board 1512d, and the mounting region 1512f in the reference plane 101 coincide with each other. In other embodiments, the first circuit board 1512c and the second circuit board 1512d may also be relatively tilted, and the angle between the front surface of the first circuit board 1512c and the front surface of the second circuit board 1512d is less than 90 degrees.
[0039] In some embodiments, a plurality of components disposed on a first circuit board 1512c are defined as a first component group, and a plurality of components disposed on a second circuit board 1512d are defined as a second component group. The first component group includes a first common-mode inductor 1512g and a first X capacitor 1512h, and the second component group includes a second common-mode inductor 1512j and a second X capacitor 1512k. In some embodiments, the first component group further includes a first Y capacitor 1512m and a varistor 1512n, and the second component group further includes a second Y capacitor 1512q. It is understood that the first common-mode inductor 1512g, the first X capacitor 1512h, the first Y capacitor 1512m, and the varistor 1512n are all soldered to the front side of the first circuit board 1512c, and the second common-mode inductor 1512j, the second X capacitor 1512k, and the second Y capacitor 1512q are all soldered to the front side of the second circuit board 1512d.
[0040] Reference Figure 4 and Figure 5In some embodiments, the AC port filtering module 1512 has a filtering circuit, which includes a first filtering circuit 1512r and a second filtering circuit 1512s. The first filtering circuit 1512r is printed on a first circuit board 1512c, and the second filtering circuit 1512s is printed on a second circuit board 1512d. In some embodiments, the first common-mode inductor 1512g is a common-mode inductor CM1, the first X capacitor 1512h includes an X capacitor X1, the first Y capacitor 1512m includes Y capacitors Y1 and Y capacitors Y2, the varistor 1512n includes varistors RV1, RV2 and RV3, the second common-mode inductor 1512j is a common-mode inductor CM2, the second X capacitor 1512k includes X capacitors X2 and X capacitors X3, and the second Y capacitor 1512q includes Y capacitors Y3 and Y capacitors Y4.
[0041] Reference Figure 5 In the first filter circuit 1512r, one end of capacitor X1 is electrically connected to the input terminal L1in of common-mode inductor CM1, and the other end of capacitor X1 is electrically connected to the input terminal N1in of common-mode inductor CM1; one end of varistor RV3 is electrically connected to the input terminal L1in of common-mode inductor CM1, and the other end of varistor RV3 is electrically connected to the input terminal N1in of common-mode inductor CM1; varistor RV1 and varistor RV2 are connected in series, and varistor RV1 and varistor RV2 are electrically connected to each other. One end of the varistor RV1 is grounded through the gas discharge tube GDT. The other end of the varistor RV2 is connected to the input terminal L1in of the common mode inductor CM1. The other end of the varistor RV2 is connected to the input terminal N1in of the common mode inductor CM1. Y capacitors Y1 and Y2 are connected in series. One end of the interconnected Y capacitors Y1 and Y2 is grounded. The other end of Y capacitor Y1 is connected to the output terminal L1out of the common mode inductor CM1. The other end of Y capacitor Y2 is connected to the output terminal N1out of the common mode inductor CM1.
[0042] In the second filter circuit 1512s, one end of capacitor X2 is electrically connected to the input terminal L2in of common-mode inductor CM2, and the other end of capacitor X2 is electrically connected to the input terminal N2in of common-mode inductor CM2; one end of capacitor X3 is electrically connected to the output terminal L2out of common-mode inductor CM2, and the other end of capacitor X3 is electrically connected to the output terminal N2out of common-mode inductor CM2; capacitors Y3 and Y4 are connected in series, with one end of capacitors Y3 and Y4 electrically connected to each other grounded, the other end of capacitor Y3 is electrically connected to the output terminal L2out of common-mode inductor CM2, and the other end of capacitor Y4 is electrically connected to the input terminal N2out of common-mode inductor CM2.
[0043] The specifications of the components in the first filter circuit 1512r and the second filter circuit 1512s, such as the resistance value of the varistor RV1, the inductance value of the common-mode inductor CM1, and the capacitance value of the Y capacitor Y3, can be selected according to the frequency of the signal to be filtered, and are not limited here. It should be noted that the specific structure of the first filter circuit 1512r and the second filter circuit 1512s and the specifications of the components therein are not the core technical points of the technical solution of this application.
[0044] Reference Figure 4 and Figure 6 Conductive connector 1512e is disposed in mounting area 1512f. In some embodiments, at least two conductive connectors 1512e are provided, wherein two conductive connectors 1512e are respectively fixedly connected to the first circuit board 1512c and the second circuit board 1512d and respectively electrically connected to the first filter circuit 1512r and the second filter circuit 1512s. Taking one conductive connector 1512e as an example, the conductive connector 1512e is a copper pillar, and one end of the conductive connector 1512e is fixedly connected to the first circuit board 1512c by a screw and connected to the output terminal L1out of the common mode inductor CM1 on the first circuit board 1512c (see...). Figure 5 The other end of the conductive connector 1512e is fixedly connected to the second circuit board 1512d by screws and is connected to the input terminal L2in of the common mode inductor CM2 on the second circuit board 1512d (see...). Figure 5 The conductive connector 1512e makes contact, and the output terminal L1out of the common mode inductor CM1 is electrically connected to the input terminal L2in of the common mode inductor CM2. It can be understood that one of the conductive connectors 1512e makes the output terminal N1out of the common mode inductor CM1 and the input terminal N2in of the common mode inductor CM2 electrically connected.
[0045] In addition to the two conductive connectors 1512e mentioned above, the remaining conductive connectors 1512e are also fixedly connected to the first circuit board 1512c and the second circuit board 1512d respectively to provide support. It can be understood that the conductive connectors 1512e that provide support are not electrically connected to the circuits on the first circuit board 1512c and the second circuit board 1512d.
[0046] In other embodiments, the two ends of the conductive connector 1512e can also be fixedly connected to the first circuit board 1512c and the second circuit board 1512d respectively by welding.
[0047] Reference Figure 4In some embodiments, the orthographic projections of at least one component in the first component group and at least one component in the second component group on the reference plane 101 at least partially overlap. For example, the projections of the first X capacitor 1512h and the second X capacitor 1512k on the reference plane 101 at least partially overlap, and the orthographic projection of the varistor 1512n and one of the second X capacitors 1512k on the reference plane 101 at least partially overlap. In some embodiments, the orthographic projections of the first X capacitor 1512h and the second common-mode inductor 1512j on the reference plane 101 do not overlap, and the orthographic projections of both second X capacitors 1512k and the first common-mode inductor 1512g on the reference plane 101 do not overlap.
[0048] At least one component in the first component group and at least one component in the second component group intersect the reference plane 101. It is understood that, when viewed from one of the directions perpendicular to the thickness direction of the first circuit board 1512c towards the mounting region 1512f, at least one component in the first component group and at least one component in the second component group at least partially overlap. Exemplarily, both the first common-mode inductor 1512g and the second common-mode inductor 1512j intersect the reference plane 101, and both second X capacitors 1512k intersect the reference plane 101. In other embodiments, neither of the two second X capacitors 1512k intersects the reference plane 101, while the first X capacitor 1512h intersects the reference plane 101.
[0049] With this arrangement, the maximum rectangular outer contour of the whole formed by the first circuit board 1512c and the first component group on it intersects with the maximum rectangular outer contour of the whole formed by the second circuit board 1512d and the second component group on it. This makes the layout of the first common mode inductor 1512g, the second common mode inductor 1512j, the first X capacitor 1512h and the second X capacitor 1512k in the mounting area 1512f more compact, thereby reducing the overall space occupied by the entire AC port filter module 1512.
[0050] In other embodiments, both the first X capacitor 1512h and the second X capacitor 1512k may not intersect with the reference plane 101.
[0051] In some embodiments, the orthographic projections of the first X capacitor 1512h and the second common-mode inductor 1512j in the reference plane 101 at least partially overlap. In other embodiments, the orthographic projections of the second X capacitor 1512k and the first common-mode inductor 1512g in the reference plane 101 at least partially overlap.
[0052] Reference Figure 4 and Figure 6In some embodiments, the axial direction of the first common-mode inductor 1512g and the axial direction of the second common-mode inductor 1512j are both substantially perpendicular to the thickness direction of the first circuit board 1512c, and the first common-mode inductor 1512g and the second common-mode inductor 1512j are substantially coaxially arranged. Taking the first common-mode inductor 1512g as an example, since the axial dimension of the first common-mode inductor 1512g is generally smaller than the radial dimension of the first common-mode inductor 1512g, by making the axial direction of the first common-mode inductor 1512g perpendicular to the thickness direction of the first circuit board 1512c, the space occupied by the first common-mode inductor 1512g in the mounting area 1512f in the thickness direction perpendicular to the first circuit board 1512c can be reduced. Meanwhile, by arranging the first common-mode inductor 1512g and the second common-mode inductor 1512j coaxially, the arrangement of the first common-mode inductor 1512g and the second common-mode inductor 1512j in the mounting area 1512f can be made more neat and compact, thereby further reducing the space occupied by the first common-mode inductor 1512g and the second common-mode inductor 1512j in the mounting area 1512f.
[0053] In some embodiments, the first common-mode inductor 1512g and the second common-mode inductor 1512j have the same specifications, and the first X capacitor 1512h and the second X capacitor 1512k have the same specifications. Taking the first common-mode inductor 1512g and the first X capacitor 1512h as examples, the maximum dimension of the first common-mode inductor 1512g along the thickness direction of the first circuit board 1512c is greater than the maximum dimension of the first X capacitor 1512h along the thickness direction of the first circuit board 1512c.
[0054] For example, the distance between the first circuit board 1512c and the second circuit board 1512d along the thickness direction of the first circuit board 1512c is defined as L1; the maximum dimension of the first common-mode inductor 1512g or the second common-mode inductor 1512j along the thickness direction of the first circuit board 1512c is defined as L2; and the maximum dimension of the first X capacitor 1512h and the second X capacitor 1512k along the thickness direction of the first circuit board 1512c is defined as L3. L2 is greater than L3, and L3 is greater than the difference between L1 and L2; the ratio of L2 to L1 is m, and m ranges from 0.7 to 1. For example, m can take any value from 0.7, 0.8, 0.85, 0.9, 0.93, 0.97, to 1. It can be understood that when the value of m is 1, the first common-mode inductor 1512g is in contact with the front side of the first circuit board 1512c and the front side of the second circuit board 1512d.
[0055] In some embodiments, the first common-mode inductor 1512g and the second common-mode inductor 1512j are spaced apart. In some embodiments, the first X capacitor 1512h and / or the second X capacitor 1512k are disposed between the first common-mode inductor 1512g and the second common-mode inductor 1512j. For example, both the first X capacitor 1512h and one of the second X capacitors 1512k are disposed between the first common-mode inductor 1512g and the second common-mode inductor 1512j. This arrangement increases the distance between the corresponding first common-mode inductors 1512j and the second common-mode inductor 1512j, thereby reducing electromagnetic interference generated between the first common-mode inductors 1512g and the second common-mode inductors 1512j, and also makes full use of the space between the first common-mode inductors 1512g and the second common-mode inductors 1512j, thereby improving the utilization rate of the space within the mounting area 1512f.
[0056] In some embodiments, when rectifying the AC port filter module 1512 to address electromagnetic interference testing, the rectification strategy typically involves replacing it with a larger common-mode inductor or X capacitor to increase the inductance value of the common-mode inductor or the capacitance value of the X capacitor. By reducing the overall space occupied by the AC port filter module 1512, more space can be reserved to facilitate the replacement of common-mode inductors or X capacitors of different sizes as needed, thus enabling the implementation of relevant rectification measures.
[0057] Reference Figure 7 In some embodiments, the first component group includes a first common-mode inductor 1512g, a second common-mode inductor 1512j, and a first X capacitor 1512h; the second component group includes a second X capacitor 1512k, and there are two second X capacitors 1512k. In some embodiments, the first component group further includes a first Y capacitor 1512m and a varistor 1512n; the second component group further includes a second Y capacitor 1512q. It is understood that the first common-mode inductor 1512g, the second common-mode inductor 1512j, the first X capacitor 1512h, the first Y capacitor 1512m, and the varistor 1512n are all soldered to the front side of the first circuit board 1512c, and the second X capacitor 1512k and the second Y capacitor 1512q are both soldered to the front side of the second circuit board 1512d.
[0058] In some embodiments, the mounting region 1512f has at least one reference surface 101, and the second X capacitor 1512k, the first common-mode inductor 1512g, and / or the second common-mode inductor 1512j all intersect the reference surface 101. The orthographic projections of the first X capacitor 1512h and one of the second X capacitors 1512k in the reference surface 101 overlap, the orthographic projections of the second X capacitor 1512k and the first common-mode inductor 1512g in the reference surface 101 do not overlap, and the orthographic projections of the second X capacitor 1512k and the second common-mode inductor 1512j in the reference surface 101 do not overlap.
[0059] In other embodiments, the orthographic projections of the second X capacitor 1512k and the first common-mode inductor 1512g in the reference plane 101 may overlap, and / or the orthographic projections of the second X capacitor 1512k and the second common-mode inductor 1512j in the reference plane 101 may overlap.
[0060] Furthermore, those skilled in the art should recognize that the above embodiments are merely illustrative of this application and are not intended to limit this application. Any appropriate changes and variations made to the above embodiments within the essential spirit and scope of this application fall within the scope of this application's disclosure.
Claims
1. A charger, comprising an input port, an AC port filtering module, a voltage conversion module, and an output port connected in sequence; characterized in that: The AC port filtering module includes a first circuit board, a second circuit board, a conductive connector, a first component group disposed on the first circuit board, and a second component group disposed on the second circuit board. The first circuit board and the second circuit board are arranged facing each other, and the conductive connector is electrically connected to the first circuit board and the second circuit board. Each of the first component group and the second component group includes several components. The area between the first circuit board and the second circuit board is defined as a mounting area, and the first component group and the second component group are disposed within the mounting area. A plane parallel to the first circuit board within the mounting area is defined as a reference plane. At least one component in the first component group and at least one component in the second component group intersect the reference plane, and the orthographic projections of at least one component in the first component group and at least one component in the second component group in the reference plane at least partially overlap.
2. The charger according to claim 1, characterized in that, The first component group includes a first common-mode inductor and a first X capacitor, and the second component group includes a second common-mode inductor and a second X capacitor. Both the first common-mode inductor and the second common-mode inductor intersect the reference plane, and the orthographic projections of the first X capacitor and the second X capacitor in the reference plane at least partially overlap.
3. The charger according to claim 2, characterized in that, The first X capacitor or the second X capacitor intersects with the reference plane.
4. The charger according to claim 2, characterized in that, The orthographic projections of the first X capacitor and the second common-mode inductor in the reference plane do not overlap, and / or the orthographic projections of the second X capacitor and the first common-mode inductor in the reference plane do not overlap.
5. The charger according to claim 1, characterized in that, The first component group includes a first common-mode inductor, a second common-mode inductor, and a first X capacitor. The second component group includes a second X capacitor. The mounting area has at least one of the reference planes. The reference plane intersects with the second X capacitor and intersects with at least one of the first common-mode inductor and the second common-mode inductor. The orthographic projections of the first X capacitor and the second X capacitor in the reference plane at least partially overlap.
6. The charger according to any one of claims 2 to 5, characterized in that, The first circuit board and the second circuit board are substantially parallel. The distance between the first circuit board and the second circuit board along the thickness direction of the first circuit board is defined as L1. The maximum dimension of the first common mode inductor or the second common mode inductor along the thickness direction of the first circuit board is defined as L2. The ratio of L2 to L1 is 0.7 to 1.
7. The charger according to any one of claims 2 to 5, characterized in that, The axial direction of both the first common-mode inductor and the second common-mode inductor is substantially perpendicular to the thickness direction of the first circuit board.
8. The charger according to claim 7, characterized in that, The first common-mode inductor and the second common-mode inductor are substantially coaxial.
9. The charger according to claim 8, characterized in that, At least a portion of the first X capacitor and / or the second X capacitor is disposed between the first common-mode inductor and the second common-mode inductor.
10. An electric all-terrain vehicle, comprising: Frame; A body panel that at least partially covers the vehicle frame; A walking system, which is at least partially located below the frame and at least partially connected to the frame; The power system includes a power motor and a power battery. The power motor is at least partially supported by the frame and is connected to the walking system. The power battery is at least partially supported by the frame and provides electrical energy to the power motor to drive the walking system. An electrical system, the electrical system including a charger having an output port; The feature is that the charger is the charger as described in any one of claims 1 to 9, and the output port is electrically connected to the power battery.