Charging module, on-board power supply and vehicle

Abstract

The utility model discloses a charging module, vehicle-mounted power supply and vehicle, the charging module includes: first circuit board, including the first board department and second board department of being linked, OBC transformer includes the first magnetic core and first coil of mutual electromagnetic coupling, at least part of first coil is printed on the first board department, DC transformer includes the second magnetic core and second coil of mutual electromagnetic coupling, at least part of second coil is printed on the second board department. According to the charging module of the utility model, not only can effectively simplify the production technological process of charging module, save production rhythm, can effectively improve the consistency of product still, and reduce the volume of charging module to the compactness of charging module is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of vehicles, and in particular to a charging module, an on-board power supply, and a vehicle. Background Technology

[0002] A transformer is a device that uses the principle of electromagnetic induction to change alternating current voltage. Its main components are the primary coil, secondary coil, and iron core (magnetic core). Its main functions include voltage transformation, current transformation, impedance transformation, isolation, and voltage stabilization (magnetic saturation transformer). Currently, mass-produced traditional wound transformers have complex manufacturing processes, long production cycles, poor product consistency, high costs, and require various structural components to ensure accurate assembly and positioning. The large space occupied by the windings and structural components also results in a large overall size. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention provides a charging module that not only effectively simplifies the manufacturing process and saves production time, but also effectively improves product consistency and reduces the size of the charging module, thereby effectively improving its compactness.

[0004] This utility model also proposes an on-board power supply with the above-mentioned charging module.

[0005] This utility model also proposes a vehicle having the above-mentioned on-board power supply.

[0006] A charging module according to a first aspect of the present invention includes: a first circuit board, comprising a first board portion and a second board portion connected together; an OBC transformer, comprising a first magnetic core and a first coil electromagnetically coupled to each other, wherein at least a portion of the first coil is printed on the first board portion; and a DC transformer, comprising a second magnetic core and a second coil electromagnetically coupled to each other, wherein at least a portion of the second coil is printed on the second board portion.

[0007] According to the present invention, the charging module includes a first circuit board, an OBC transformer, and a DC transformer. The first circuit board includes a first board portion and a second board portion connected together. The OBC transformer includes a first magnetic core and a first coil that are electromagnetically coupled to each other, with at least a portion of the first coil printed on the first board portion. The DC transformer includes a second magnetic core and a second coil that are electromagnetically coupled to each other, with at least a portion of the second coil printed on the second board portion. This not only effectively simplifies the manufacturing process of the charging module and saves production time, but also effectively improves product consistency and reduces the size of the charging module, thereby effectively improving the compactness of the charging module.

[0008] In some embodiments, the first coil includes a first primary coil and a second primary coil, the first primary coil being printed on the first circuit board, and the charging module further includes a second circuit board, the second circuit board being disposed on one side of the first board portion in the thickness direction of the first circuit board, and the second primary coil being printed on the second circuit board.

[0009] In some embodiments, the first board portion and the second circuit board are arranged facing each other in the thickness direction of the first circuit board, and the charging module further includes a ceramic pad disposed between the first board portion and the second circuit board.

[0010] In some embodiments, the first plate portion is provided with a first mounting positioning hole, the second circuit board is provided with a second mounting positioning hole, and the ceramic pad is provided with a third mounting positioning hole. The first mounting positioning hole, the second mounting positioning hole, and the third mounting positioning hole are aligned in the thickness direction of the first plate portion. The first magnetic core includes a first post formed at the middle position of the first magnetic core. The first post extends along the thickness direction of the first circuit board and passes through the first mounting positioning hole, the second mounting positioning hole, and the third mounting positioning hole.

[0011] In some embodiments, the second coil includes an inductor coil and a primary and secondary coil arranged in the plane of the first circuit board, at least a portion of the inductor coil being printed on the second board portion, and / or at least a portion of the primary and secondary coils being printed on the second board portion.

[0012] In some embodiments, the inductor coil includes: a first inductor winding, a second inductor winding, and a third inductor winding, wherein the first inductor winding and the third inductor winding are respectively arranged on both sides of the second plate portion in the thickness direction and connected to the first circuit board, and the second inductor winding is printed on the second plate portion; the primary and secondary coils include: a first primary winding, a first primary winding, and a second primary winding, wherein the first primary winding and the second primary winding are respectively arranged on both sides of the second plate portion in the thickness direction and connected to the first circuit board, and the first primary winding is printed on the second plate portion.

[0013] In some embodiments, the first inductor winding and the first primary winding are arranged along the length of the first circuit board and connected as a whole; the third inductor winding and the second primary winding are arranged along the length of the first circuit board and connected as a whole.

[0014] In some embodiments, the second plate portion is provided with a first inductor hole and a first primary hole arranged at intervals. The first inductor winding and the third inductor winding are both annular and respectively define a second inductor hole and a third inductor hole. The first primary winding and the second primary winding are both annular and respectively define a first primary hole and a second primary hole. The second magnetic core includes an inductor core and a transformer core. The inductor core includes a second post formed at the middle position of the inductor core. The second post passes through the first inductor hole, the second inductor hole, and the third inductor hole. The transformer core includes a third post formed at the middle position of the transformer core. The third post passes through the first primary hole, the first primary hole, and the second primary hole.

[0015] In some embodiments, the charging module further includes a power factor correction inductor connected to the first circuit board, the power factor correction inductor including a third magnetic core and a third coil that are electromagnetically coupled to each other.

[0016] In some embodiments, the first circuit board further includes a third board portion, which is connected between the first board portion and the second board portion in the length direction of the first circuit board. The third board portion has a positioning hole that extends through the third board portion along the thickness direction of the first circuit board, and the third coil passes through the positioning hole.

[0017] In some embodiments, there are multiple third coils, which are spaced apart in the width direction of the first circuit board, and the third magnetic core and the positioning hole correspond one-to-one with the third coil.

[0018] In some embodiments, the charging module further includes a base, wherein the first magnetic core, the second magnetic core, and the third magnetic core are all fixed on the base.

[0019] In some embodiments, the base is provided with a positioning structure, which is positioned and cooperates with the first magnetic core, the second magnetic core and / or the third magnetic core.

[0020] In some embodiments, the charging module further includes: a first connection terminal connected to the first coil; a second connection terminal connected to the second coil; and a third connection terminal connected to the second coil, or the third connection terminal connected to both the second coil and the third coil.

[0021] The vehicle power supply according to the second aspect of the present invention includes the charging module according to the first aspect of the present invention.

[0022] According to the second aspect of the present invention, by setting the charging module of the first aspect, the production process of the vehicle power supply can be effectively simplified and the production cycle can be saved. It can also effectively improve the consistency of the product and reduce the size of the vehicle power supply, thereby effectively improving the compactness of the vehicle power supply.

[0023] The vehicle according to the third aspect of the present invention includes the vehicle power supply according to the second aspect of the present invention.

[0024] According to the third aspect of this utility model, by setting the on-board power supply of the second aspect, the vehicle can not only effectively simplify the vehicle production process and save production time, but also effectively improve product consistency.

[0025] 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

[0026] Figure 1 This is a schematic diagram of a charging module according to an embodiment of the present utility model;

[0027] Figure 2 This is an exploded view of the charging module according to an embodiment of the present utility model;

[0028] Figure 3 This is a schematic diagram showing the first circuit board, first coil, second coil, third coil, and connecting terminals assembled together according to an embodiment of the present utility model;

[0029] Figure 4 This is a schematic diagram of the first circuit board, the first coil, the second coil, and the third coil assembled together according to an embodiment of the present utility model at one angle;

[0030] Figure 5 This is a schematic diagram from another angle showing the first circuit board, first coil, second coil, and third coil assembled together according to an embodiment of the present utility model;

[0031] Figure 6 This is a schematic diagram of the second circuit board according to an embodiment of the present utility model;

[0032] Figure 7 This is a schematic diagram of the first inductor winding, the first primary winding, and the first secondary winding according to an embodiment of the present utility model;

[0033] Figure 8 This is a schematic diagram of the third inductor winding, the second primary winding, and the first primary winding according to an embodiment of the present invention;

[0034] Figure 9This is a schematic diagram of the third coil according to an embodiment of the present utility model;

[0035] Figure 10 This is a schematic diagram of the first magnetic core, the second magnetic core, and the third magnetic core assembled on the base according to an embodiment of the present invention.

[0036] Figure label:

[0037] 100. Charging module;

[0038] 10. First circuit board;

[0039] 11. First plate section; 111. First assembly positioning hole;

[0040] 12. Second board section; 121. First stage hole; 122. First inductor hole;

[0041] 13. Third plate section; 131. Positioning hole;

[0042] 20. OBC transformer;

[0043] 21. First magnetic core; 211. First column;

[0044] 30. DC transformer;

[0045] 31. Second magnetic core; 311. Transformer magnetic core; 3111. Third column; 312. Inductor core; 3121. Second column;

[0046] 32. First primary winding; 321. First primary hole;

[0047] 33. First stage winding;

[0048] 34. Second primary winding; 341. Second primary hole;

[0049] 35. First inductor winding; 351. Second inductor hole;

[0050] 36. Second inductor winding;

[0051] 37. Third inductor winding; 371. Third inductor hole;

[0052] 40. Second circuit board; 41. Second assembly positioning hole;

[0053] 50. Ceramic gasket; 51. Third assembly positioning hole;

[0054] 60. Power factor correction inductor;

[0055] 61. The third magnetic core;

[0056] 62. The third coil;

[0057] 70. Base;

[0058] 71. Positioning structure;

[0059] 81. First connecting terminal;

[0060] 82. Second connecting terminal;

[0061] 83. Third connection terminal. Detailed Implementation

[0062] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0063] The following is for reference. Figures 1-10 A charging module 100 according to a first aspect embodiment of the present invention is described.

[0064] like Figures 1-5 As shown, the charging module 100 according to the first aspect of the present invention includes: a first circuit board 10, an OBC transformer 20 and a DC transformer 30.

[0065] The first circuit board 10 includes a first board portion 11 and a second board portion 12 connected together; the OBC transformer 20 includes a first magnetic core 21 and a first coil that are electromagnetically coupled to each other, with at least a portion of the first coil printed on the first board portion 11; the DC transformer 30 includes a second magnetic core 31 and a second coil that are electromagnetically coupled to each other, with at least a portion of the second coil printed on the second board portion 12.

[0066] In some specific examples, such as Figure 2 As shown, the first circuit board 10 includes a first board portion 11 and a second board portion 12 connected together. The first board portion 11 is located to the left of the second board portion 12. Further, the first circuit board 10 is a PCB circuit board and is an integrally formed component. The OBC transformer 20 consists of a first magnetic core 21 and a first coil to achieve electromagnetic coupling, and at least a portion of the first coil is printed on the first board portion 11. For example, a portion of the first coil is printed on the first board portion 11; or the entire first coil is printed on the first board portion 11.

[0067] For example Figure 2 As shown, the DC transformer 30 consists of a second magnetic core 31 and a second coil to achieve electromagnetic coupling, and at least a portion of the second coil is printed on the second plate portion 12. For example, a portion of the second coil is printed on the second plate portion 12; or the entire second coil is printed on the second plate portion 12.

[0068] In other words, both the first and second coils use PCB winding technology (i.e., planar transformer structure), which directly fabricates the coils on the PCB circuit board instead of the traditional winding method, thereby achieving a planar design.

[0069] In this embodiment, at least a portion of the first coil is printed on the first board portion 11, and at least a portion of the second coil is printed on the second board portion 12. This replaces manual winding, reduces manual operation, increases automation, and reduces assembly steps, thereby effectively improving production efficiency. Furthermore, the high precision of the PCB process and the good consistency of coil parameters (such as number of turns and spacing) effectively improve product reliability. Additionally, the charging module 100, which adopts a planar transformer structure, is smaller in size, effectively saving installation space and improving the compactness of the charging module 100.

[0070] According to the embodiment of the present invention, the charging module 100 includes a first circuit board 10, an OBC transformer 20, and a DC transformer 30. The first circuit board 10 includes a first board portion 11 and a second board portion 12 connected to each other. The OBC transformer 20 includes a first magnetic core 21 and a first coil that are electromagnetically coupled to each other. At least a portion of the first coil is printed on the first board portion 11. The DC transformer 30 includes a second magnetic core 31 and a second coil that are electromagnetically coupled to each other. At least a portion of the second coil is printed on the second board portion 12. This not only effectively simplifies the manufacturing process of the charging module 100 and saves production time, but also effectively improves product consistency and reduces the size of the charging module 100, thereby effectively improving the compactness of the charging module 100.

[0071] In one embodiment of this utility model, such as Figures 4-6 As shown, the first coil includes a first primary coil and a second primary coil. The first primary coil is printed on the first circuit board 10. The charging module 100 also includes a second circuit board 40. The second circuit board 40 is disposed on one side of the first board portion 11 in the thickness direction of the first circuit board 10. The first primary coil is printed on the second circuit board 40.

[0072] In some specific examples, such as Figures 4-6 As shown, the first coil includes a first primary coil and a second secondary coil. The first primary coil is printed on the first circuit board 10, and the second secondary coil is printed on the second circuit board 40, thereby achieving electrical isolation and functional separation. Furthermore, the second circuit board 40 is located on the lower side of the first board portion 11, that is, the first board portion 11 and the second circuit board 40 are arranged in the vertical direction to form a three-dimensional, multi-layer planar transformer structure.

[0073] In this embodiment, by printing the first primary coil on the first circuit board 10 and placing the second circuit board 40 on one side of the first board portion 11 in the thickness direction of the first circuit board 10, and printing the first primary coil on the second circuit board 40, the volume of the first coil can be effectively reduced and the power density increased.

[0074] In one embodiment of this utility model, such as Figure 2 As shown, the first board portion 11 and the second circuit board 40 are arranged facing each other in the thickness direction of the first circuit board 10. The charging module 100 also includes a ceramic pad 50, which is disposed between the first board portion 11 and the second circuit board 40.

[0075] It should be noted that ceramic materials possess excellent insulation properties, meeting high-voltage isolation requirements, and also exhibit good thermal conductivity, contributing to improved heat dissipation efficiency. Furthermore, the distance between the first primary coil and the second secondary coil can be precisely controlled, ensuring coupling consistency and preventing short circuits or arcing. Further, thermally conductive adhesive is applied to the two sides of the ceramic pad 50 in the vertical direction for connection to the first board portion 11 and the second circuit board 40.

[0076] In some specific examples, such as Figure 2 As shown, the thickness direction of the first circuit board 10 is vertical, and the first board portion 11 and the second circuit board 40 are directly opposite each other in the vertical direction. That is to say, the projections of the first primary coil and the first secondary coil in the vertical direction are basically coincident or highly aligned, so as to maximize the magnetic coupling area and thus improve the efficiency of the OBC transformer 20.

[0077] Furthermore, the ceramic gasket 50 is disposed between the first plate portion 11 and the second circuit board 40 to separate the first plate portion 11 and the second circuit board 40. This not only allows for adjustment of the primary and secondary coil distribution to achieve the function of adjusting leakage inductance, but also enables effective heat transfer between the first primary coil and the second secondary coil, thereby effectively improving the heat conduction efficiency.

[0078] It should be noted that ceramic materials possess excellent insulation properties, meeting high-voltage isolation requirements, and also exhibit good thermal conductivity, contributing to improved heat dissipation efficiency. Furthermore, the distance between the first primary coil and the second secondary coil can be precisely controlled, ensuring coupling consistency and preventing short circuits or arcing. Further, thermally conductive adhesive is applied to the two sides of the ceramic pad 50 in the vertical direction for connection to the first board portion 11 and the second circuit board 40.

[0079] In this embodiment, by arranging the first board portion 11 and the second circuit board 40 facing each other in the thickness direction of the first circuit board 10, and placing the ceramic gasket 50 between the first board portion 11 and the second circuit board 40, the reliability of the OBC transformer 20 can be effectively improved.

[0080] In one embodiment of this utility model, such as Figure 2 As shown, the first plate portion 11 is provided with a first mounting positioning hole 111, the second circuit board 40 is provided with a second mounting positioning hole 41, and the ceramic gasket 50 is provided with a third mounting positioning hole 51. The first mounting positioning hole 111, the second mounting positioning hole 41, and the third mounting positioning hole 51 are aligned in the thickness direction of the first plate portion 11. The first magnetic core 21 includes a first post 211 formed in the middle of the first magnetic core 21. The first post 211 extends along the thickness direction of the first circuit board 10 and passes through the first mounting positioning hole 111, the second mounting positioning hole 41, and the third mounting positioning hole 51.

[0081] In some specific examples, such as Figure 2 As shown, the first mounting positioning hole 111 penetrates the first plate portion 11 along the thickness direction of the first plate portion 11, the second mounting positioning hole 41 penetrates the second circuit board 40 along the thickness direction of the second circuit board 40, and the third mounting positioning hole 51 penetrates the ceramic pad 50 along the thickness direction of the ceramic pad 50. The first mounting positioning hole 111, the second mounting positioning hole 41 and the third mounting positioning hole 51 are directly opposite each other in the vertical direction. The first magnetic core 21 extends in the vertical direction and passes through the first mounting positioning hole 111, the second mounting positioning hole 41 and the third mounting positioning hole 51.

[0082] In this embodiment, a first assembly positioning hole 111 is provided on the first plate portion 11, a second assembly positioning hole 41 is provided on the second circuit board 40, and a third assembly positioning hole 51 is provided on the ceramic pad 50. The first assembly positioning hole 111, the second assembly positioning hole 41, and the third assembly positioning hole 51 are aligned in the thickness direction of the first plate portion 11. The first magnetic core 21 includes a first post 211 formed in the middle of the first magnetic core 21. The first post 211 extends along the thickness direction of the first circuit board 10 and passes through the first assembly positioning hole 111, the second assembly positioning hole 41, and the third assembly positioning hole 51. This can effectively achieve precise positioning between the first plate portion 11, the second circuit board 40, the ceramic pad 50, and the first post 211, avoiding misalignment during assembly. In addition, it can also improve the coupling efficiency of the coil.

[0083] In one embodiment of this utility model, such as Figure 2 As shown, the second coil includes an inductor coil and a primary and secondary coil arranged in the plane of the first circuit board 10, at least a portion of the inductor coil is printed on the second board portion 12, and / or, at least a portion of the primary and secondary coils is printed on the second board portion 12.

[0084] For example, a portion of the inductor coil is printed on the second plate portion 12; or, the entire inductor coil is printed on the second plate portion 12. For example, a portion of the primary and secondary coils is printed on the second plate portion 12; or, the entire primary and secondary coils are printed on the second plate portion 12. For example, at least a portion of the inductor coil is printed on the second plate portion 12; or, at least a portion of the primary and secondary coils are printed on the second plate portion 12; or, at least a portion of the inductor coil and at least a portion of the primary and secondary coils are both printed on the second plate portion 12.

[0085] This embodiment utilizes an inductor and primary / secondary coil arranged in the plane of the first circuit board 10 within a second coil. At least a portion of the inductor is printed on the second board portion 12, and / or at least a portion of the primary / secondary coil is printed on the second board portion 12. This effectively achieves a planar arrangement design of the inductor and primary / secondary coils, thereby fully utilizing the surface area of ​​the second board portion 12 and saving installation space. Furthermore, the inductor and primary / secondary coils can be integrated onto the second board portion 12, which helps to improve the integration and power density of the charging module 100.

[0086] In one embodiment of this utility model, such as Figure 2 , Figure 7 and Figure 8 As shown, the inductor coil includes: a first inductor winding 35, a second inductor winding 36, and a third inductor winding 37. The first inductor winding 35 and the third inductor winding 37 are respectively arranged on both sides of the second board portion 12 in the thickness direction and connected to the first circuit board 10. The second inductor winding 36 is printed on the second board portion 12. The primary and secondary coils include: a first primary winding 32, a first primary winding 33, and a second primary winding 34. The first primary winding 32 and the second primary winding 34 are respectively arranged on both sides of the second board portion 12 in the thickness direction and connected to the first circuit board 10. The first primary winding 33 is printed on the second board portion 12.

[0087] In some specific examples, such as Figure 2 , Figure 7 and Figure 8As shown, the first inductor winding 35 and the third inductor winding 37 are respectively arranged on both sides of the second board portion 12 in the vertical direction. Further, the first inductor winding 35 is arranged on the upper side of the second board portion 12, and the third inductor winding 37 is arranged on the lower side of the second board portion 12. The first inductor winding 35 and the third inductor winding 37 are respectively soldered to the first circuit board 10. The second inductor winding 36 is printed on the second board portion 12. The first primary winding 32 and the second primary winding 34 are respectively arranged on both sides of the second board portion 12 in the vertical direction. Further, the first primary winding 32 is arranged on the upper side of the second board portion 12, and the second primary winding 34 is arranged on the lower side of the second board portion 12. The first primary winding 32 and the second primary winding 34 are respectively soldered to the first circuit board 10. The first primary winding 33 is printed on the second board portion 12.

[0088] In this embodiment, the first inductor winding 35 and the third inductor winding 37 are respectively arranged on both sides of the second plate portion 12 in the thickness direction and connected to the first circuit board 10. The second inductor winding 36 is printed on the second plate portion 12. The first primary winding 32 and the second primary winding 34 are respectively arranged on both sides of the second plate portion 12 in the thickness direction and connected to the first circuit board 10. The first primary winding 33 is printed on the second plate portion 12. This can effectively reduce the volume of the DC transformer 30 and effectively improve the power density of the DC transformer 30.

[0089] In one embodiment of this utility model, such as Figure 7 and Figure 8 As shown, the first inductor winding 35 and the first primary winding 32 are arranged along the length of the first circuit board 10 and connected as one unit; the third inductor winding 37 and the second primary winding 34 are arranged along the length of the first circuit board 10 and connected as one unit.

[0090] In some specific examples, such as Figure 7 As shown, the first inductor winding 35 and the first primary winding 32 are arranged in a left-right direction. Furthermore, the first inductor winding 35 is located to the right of the first primary winding 32, and the first inductor winding 35 and the first primary winding 32 are connected as a single unit. For example... Figure 8 As shown, the third inductor winding 37 and the second primary winding 34 are arranged in the left-right direction. Furthermore, the third inductor winding 37 is located to the right of the second primary winding 34, and the third inductor winding 37 and the second primary winding 34 are connected as one unit.

[0091] In this embodiment, the first inductor winding 35 and the first primary winding 32 are arranged along the length of the first circuit board 10 and connected as one unit, and the third inductor winding 37 and the second primary winding 34 are arranged along the length of the first circuit board 10 and connected as one unit. This not only realizes the dual functions of inductor and transformer, thereby effectively improving the integration of inductor coil and primary and secondary coils, but also effectively reduces the number of parts, thereby effectively improving the reliability of inductor coil and primary and secondary coils.

[0092] In one embodiment of this utility model, such as Figures 1-3 As shown, the second plate portion 12 is provided with first inductor holes 122 and first primary holes 121 arranged at intervals. The first inductor winding 35 and the third inductor winding 37 are both annular and define the second inductor hole 351 and the third inductor hole 371, respectively. The first primary winding 32 and the second primary winding 34 are both annular and define the first primary hole 321 and the second primary hole 341, respectively. The second magnetic core 31 includes an inductor core 312 and a transformer core 311. The inductor core 312 includes a second post 3121 formed at the middle position of the inductor core 312. The second post 3121 passes through the first inductor hole 122, the second inductor hole 351 and the third inductor hole 371. The transformer core 311 includes a third post 3111 formed at the middle position of the transformer core 311. The third post 3111 passes through the first primary hole 121, the first primary hole 321 and the second primary hole 341.

[0093] In this embodiment, by inserting the second post 3121 of the inductor core 312 into the first inductor hole 122, the second inductor hole 351, and the third inductor hole 371, and inserting the third post 3111 of the transformer core 311 into the first primary hole 121, the first primary hole 321, and the second primary hole 341, it not only facilitates assembly and positioning but also allows the inductor core 312 and the transformer core 311 to be separated, avoiding mutual interference and ensuring that the inductance and transformation ratio are stable and controllable, thereby effectively improving the stability of the charging module 100.

[0094] In one embodiment of this utility model, such as Figure 2 and Figure 9 As shown, the charging module 100 also includes a power factor correction inductor 60, which is connected to the first circuit board 10. The power factor correction inductor 60 includes a third magnetic core 61 and a third coil 62 that are electromagnetically coupled to each other.

[0095] In this embodiment, a power factor correction inductor 60 is provided in the charging module 100. The power factor correction inductor 60 is connected to the first circuit board 10. The power factor correction inductor 60 includes a third magnetic core 61 and a third coil 62 that are electromagnetically coupled to each other. This can further expand the function of the charging module 100 and further improve the power density of the charging module 100.

[0096] In one embodiment of this utility model, such as Figure 2 As shown, the first circuit board 10 also includes a third board portion 13. In the length direction of the first circuit board 10, the third board portion 13 is connected between the first board portion 11 and the second board portion 12. The third board portion 13 has a positioning hole 131 that extends through the third board portion 13 along the thickness direction of the first circuit board 10. The third coil 62 passes through the positioning hole 131.

[0097] In some specific examples, such as Figure 2 As shown, in the left-right direction, the third plate portion 13 is connected between the first plate portion 11 and the second plate portion 12, and the third plate portion 13 is formed with a positioning hole 131 that extends through the third plate portion 13 in the up-down direction. The third coil 62 passes through the positioning hole 131, thereby facilitating the assembly and positioning of the third coil 62.

[0098] In this embodiment, a third board portion 13 is provided in the first circuit board 10. In the length direction of the first circuit board 10, the third board portion 13 is connected between the first board portion 11 and the second board portion 12. The third board portion 13 has a positioning hole 131 that extends through the third board portion 13 along the thickness direction of the first circuit board 10. The third coil 62 passes through the positioning hole 131. This not only optimizes the structure of the charging module 100, but also facilitates the assembly and positioning of the third coil 62.

[0099] In one embodiment of this utility model, such as Figure 2 As shown, there are multiple third coils 62, which are arranged at intervals in the width direction of the first circuit board 10. The third magnetic core 61 and the positioning hole 131 correspond one-to-one with the third coil 62.

[0100] For example, the number of third coils 62 can be two, three, four, five, or more, with each third coil 62 constituting an independent functional unit. Multiple third coils 62 can be connected to different circuit branches or control channels. In some specific examples, such as... Figure 2 As shown, there are two third coils 62, and multiple third coils 62 are arranged at intervals in the front-back direction. There are two third magnetic cores 61 and two positioning holes 131, and the third magnetic cores 61 and positioning holes 131 are set in a one-to-one correspondence with the third coils 62.

[0101] In this embodiment, by setting the number of third coils 62 to multiple, the multiple third coils 62 are arranged at intervals in the width direction of the first circuit board 10. The third magnetic core 61 and the positioning hole 131 correspond one-to-one with the third coils 62, so that the multiple third coils 62 can work independently, reduce magnetic field superposition interference and evenly distribute heat, thereby effectively improving the reliability of the third coils 62.

[0102] In one embodiment of this utility model, such as Figure 10 As shown, the charging module 100 also includes a base 70, and the first magnetic core 21, the second magnetic core 31 and the third magnetic core 61 are all fixed on the base 70.

[0103] In some specific examples, such as Figure 10 As shown, the base 70 adopts an integrated injection molding structure containing an aluminum plate, which not only strengthens the structural strength but also serves a heat dissipation function. Furthermore, the first magnetic core 21, the second magnetic core 31, and the third magnetic core 61 are all fixed on the base 70, thereby effectively improving the stability of the first magnetic core 21, the second magnetic core 31, and the third magnetic core 61.

[0104] In this embodiment, by setting a base 70 in the charging module 100, the first magnetic core 21, the second magnetic core 31 and the third magnetic core 61 are all fixed on the base 70, which can effectively improve the stability of the first magnetic core 21, the second magnetic core 31 and the third magnetic core 61.

[0105] In one embodiment of this utility model, such as Figure 2 As shown, the base 70 is provided with a positioning structure 71, which is positioned and cooperates with the first magnetic core 21, the second magnetic core 31 and / or the third magnetic core 61.

[0106] For example, the positioning structure 71 is positioned and engaged with the first magnetic core 21; another example is that the positioning structure 71 is positioned and engaged with the second magnetic core 31; yet another example is that the positioning structure 71 is positioned and engaged with the third magnetic core 61. In some specific examples, such as Figure 2 As shown, the positioning structure 71 consists of multiple positioning posts. The first magnetic core 21, the second magnetic core 31, and the third magnetic core 61 are provided with through holes, and the positioning posts are inserted into the through holes. The first magnetic core 21, the second magnetic core 31, and the third magnetic core 61 are fixed to the base 70 with adhesive.

[0107] In this embodiment, by setting a positioning structure 71 on the base 70, the positioning structure 71 is positioned and cooperates with the first magnetic core 21, the second magnetic core 31 and / or the third magnetic core 61, which can further improve the stability of the first magnetic core 21, the second magnetic core 31 and / or the third magnetic core 61.

[0108] In one embodiment of this utility model, such as Figure 2As shown, the charging module 100 further includes: a first connection terminal 81, which is connected to the first coil; a second connection terminal 82, which is connected to the second coil; and a third connection terminal 83, which is connected to the second coil, or the third connection terminal 83 is connected to both the second coil and the third coil 62.

[0109] In some specific examples, such as Figure 2 As shown, the charging module 100 also includes connection terminals, including a first connection terminal 81, a second connection terminal 82, and a third connection terminal 83. The first connection terminal 81 is soldered to the first coil. The second connection terminal 82 is soldered to the second coil. For example, the third connection terminal 83 is soldered to the second coil; or, for example, the third connection terminal 83 is soldered to the third coil 62. Further, the first connection terminal 81 is located on the left side, the second connection terminal 82 is located on the right side, and the third connection terminal 83 is located between the first connection terminal 81 and the second connection terminal 82.

[0110] This embodiment provides a first connection terminal 81, a second connection terminal 82, and a third connection terminal 83 in the charging module 100. The first connection terminal 81 is connected to the first coil, the second connection terminal 82 is connected to the second coil, and the third connection terminal 83 is connected to the second coil, or the third connection terminal 83 is connected to both the second coil and the third coil 62. This allows the OBC transformer 20, the DC transformer 30, and the power factor correction inductor 60 to work independently without affecting each other, thereby effectively improving the flexibility and applicability of the charging module 100.

[0111] The vehicle power supply according to a second aspect of the present invention includes a charging module 100 according to a first aspect of the present invention.

[0112] According to the second aspect of the present invention, by setting the charging module 100 of the first aspect, the vehicle power supply can not only effectively simplify the production process of the vehicle power supply and save production time, but also effectively improve product consistency and reduce the size of the vehicle power supply, thereby effectively improving the compactness of the vehicle power supply.

[0113] The vehicle according to a third aspect of the present invention includes an on-board power supply according to a second aspect of the present invention.

[0114] According to the third aspect embodiment of the present invention, by setting the on-board power supply of the second aspect, the vehicle can not only effectively simplify the vehicle production process and save production time, but also effectively improve product consistency.

[0115] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", 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 are not intended to 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.

[0116] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying 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 utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0117] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "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, an electrical connection, or a communication 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0118] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is 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. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0119] 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 charging module (100), characterized in that, include: The first circuit board (10) includes a first board portion (11) and a second board portion (12) connected together; An OBC transformer (20) includes a first magnetic core (21) and a first coil that are electromagnetically coupled to each other, at least a portion of which is printed on the first plate portion (11). A DC transformer (30) includes a second magnetic core (31) and a second coil that are electromagnetically coupled to each other, at least a portion of which is printed on the second plate portion (12).

2. The charging module (100) according to claim 1, characterized in that, The first coil includes a first primary coil and a second secondary coil, the first primary coil being printed on the first circuit board (10). The charging module (100) further includes a second circuit board (40), which is disposed on one side of the first board portion (11) in the thickness direction of the first circuit board (10), and the first primary coil is printed on the second circuit board (40).

3. The charging module (100) according to claim 2, characterized in that, The first board portion (11) and the second circuit board (40) are arranged facing each other in the thickness direction of the first circuit board (10). The charging module (100) further includes a ceramic pad (50) disposed between the first board portion (11) and the second circuit board (40).

4. The charging module (100) according to claim 3, characterized in that, The first plate portion (11) is provided with a first mounting positioning hole (111), the second circuit board (40) is provided with a second mounting positioning hole (41), and the ceramic gasket (50) is provided with a third mounting positioning hole (51). The first mounting positioning hole (111), the second mounting positioning hole (41), and the third mounting positioning hole (51) are directly opposite each other in the thickness direction of the first plate portion (11). The first magnetic core (21) includes a first post (211) formed at the middle position of the first magnetic core (21). The first post (211) extends along the thickness direction of the first circuit board (10) and passes through the first assembly positioning hole (111), the second assembly positioning hole (41) and the third assembly positioning hole (51).

5. The charging module (100) according to claim 1, characterized in that, The second coil includes an inductor coil and a primary and secondary coil arranged in the plane of the first circuit board (10), at least a portion of the inductor coil is printed on the second board portion (12), and / or at least a portion of the primary and secondary coils is printed on the second board portion (12).

6. The charging module (100) according to claim 5, characterized in that, The inductor coil includes: a first inductor winding (35), a second inductor winding (36) and a third inductor winding (37). The first inductor winding (35) and the third inductor winding (37) are respectively arranged on both sides of the second plate portion (12) in the thickness direction and connected to the first circuit board (10). The second inductor winding (36) is printed on the second plate portion (12). The primary and secondary coils include: a first primary winding (32), a first primary winding (33), and a second primary winding (34). The first primary winding (32) and the second primary winding (34) are respectively arranged on both sides of the second plate portion (12) in the thickness direction and connected to the first circuit board (10). The first primary winding (33) is printed on the second plate portion (12).

7. The charging module (100) according to claim 6, characterized in that, The first inductor winding (35) and the first primary winding (32) are arranged along the length of the first circuit board (10) and connected as a whole; The third inductor winding (37) and the second primary winding (34) are arranged along the length of the first circuit board (10) and are connected as one unit.

8. The charging module (100) according to claim 6, characterized in that, The second plate portion (12) is provided with a first inductor hole (122) and a first primary hole (121) arranged at intervals. The first inductor winding (35) and the third inductor winding (37) are both annular and define a second inductor hole (351) and a third inductor hole (371) respectively. The first primary winding (32) and the second primary winding (34) are both annular and define a first primary hole (321) and a second primary hole (341) respectively. The second magnetic core (31) includes an inductor core (312) and a transformer core (311). The inductor core (312) includes a second post (3121) formed at the middle position of the inductor core (312). The second post (3121) passes through the first inductor hole (122), the second inductor hole (351), and the third inductor hole (371). The transformer core (311) includes a third post (3111) formed at the middle position of the transformer core (311). The third post (3111) passes through the first primary hole (121), the first primary hole (321), and the second primary hole (341).

9. The charging module (100) according to any one of claims 1-8, characterized in that, Also includes: A power factor correction inductor (60) is connected to the first circuit board (10). The power factor correction inductor (60) includes a third magnetic core (61) and a third coil (62) that are electromagnetically coupled to each other.

10. The charging module (100) according to claim 9, characterized in that, The first circuit board (10) further includes a third board portion (13). In the length direction of the first circuit board (10), the third board portion (13) is connected between the first board portion (11) and the second board portion (12). The third board portion (13) has a positioning hole (131) that extends through the third board portion (13) along the thickness direction of the first circuit board (10). The third coil (62) passes through the positioning hole (131).

11. The charging module (100) according to claim 10, characterized in that, The number of the third coils (62) is multiple, and the multiple third coils (62) are arranged at intervals in the width direction of the first circuit board (10). The third magnetic core (61) and the positioning hole (131) correspond one-to-one with the third coils (62).

12. The charging module (100) according to claim 9, characterized in that, Also includes: The base (70), the first magnetic core (21), the second magnetic core (31) and the third magnetic core (61) are all fixed on the base (70).

13. The charging module (100) according to claim 12, characterized in that, The base (70) is provided with a positioning structure (71), which is positioned and cooperates with the first magnetic core (21), the second magnetic core (31) and / or the third magnetic core (61).

14. The charging module (100) according to claim 9, characterized in that, Also includes: The first connecting terminal (81) is connected to the first coil; The second connecting terminal (82) is connected to the second coil; The third connection terminal (83) is connected to the second coil, or the third connection terminal (83) is connected to both the second coil and the third coil (62).

15. A vehicle-mounted power supply, characterized in that, Includes the charging module (100) according to any one of claims 1-14.

16. A vehicle, characterized in that, Includes the vehicle power supply as described in claim 15.

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