PCB assembly, vehicle-mounted charger and vehicle

Abstract

The utility model provides a PCB assembly, a vehicle-mounted charger and a vehicle, the PCB assembly is used for a charging and discharging device of the vehicle, the PCB assembly comprises at least two first PCBs and at least one second PCB, the at least two first PCBs are parallel to each other and are arranged in a spaced mode, the two ends of the at least one second PCB are connected to the first PCBs respectively, and the first PCBs and the second PCBs are arranged in a spaced mode. A voltage regulation module is arranged on the second PCB, and the at least two first PCBs are respectively connected to the voltage regulation module through the second PCB and can be in communication connection with each other through the second PCB.

Description

Technical Field

[0001] This application relates to the technical field of circuit arrangements of charging devices, and specifically, to a PCB board assembly, an on-vehicle charger, and a vehicle. Background Art

[0002] In devices for charging electric vehicles such as on-vehicle chargers (OBCs), DC / DC converters, and charge connectors, especially in the AUX (Auxiliary) modules of these devices, multiple PCB boards for implementing various functions are often arranged, and electronic components for the PCB board are arranged on a single PCB board. With the miniaturization trend of these charging devices, how to arrange the PCB boards used therein and coordinate the positions of the electronic components arranged on the PCB boards to save the volume and assembly space of the charging devices has become an important issue.

[0003] In a known arrangement method of PCB boards in the AUX module of a charging device, in addition to the horizontally arranged main PCB board, a PCB board perpendicular to the main PCB board is added to save the assembly space in the horizontal direction. This PCB board is only connected to the horizontally arranged main PCB board at one end thereof, and electronic components that can be shared by the main PCB board are arranged thereon, thereby increasing the utilization rate of the three-dimensional space of the PCB board.

[0004] It should be noted that the information disclosed in the above background art section is only used to enhance the understanding of the background of the present disclosure, and thus may include information that does not constitute the prior art known to those of ordinary skill in the art. Summary of the Utility Model

[0005] According to different aspects, one of the purposes of this application is how to improve the space utilization rate of the PCB board assembly in the charging device.

[0006] In addition, this application also aims to solve or alleviate other technical problems existing in the prior art.

[0007] According to one aspect of this application, provided is:

[0008] A PCB board assembly for a vehicle's charging and discharging device, which includes at least two first PCB boards and at least one second PCB board. The at least two first PCB boards are arranged parallel to each other and spaced apart. Both ends of the at least one second PCB board are respectively connected to one first PCB board. A voltage regulation module is arranged on the second PCB board. The at least two first PCB boards are respectively connected to the voltage regulation module through the second PCB board and can communicate with each other through the second PCB board.

[0009] According to another aspect of the present application, the present application provides an on-vehicle charger, which includes the above-mentioned PCB board assembly.

[0010] According to still another aspect of the present application, the present application provides a vehicle, which includes the above-mentioned on-vehicle charger. The second PCB board is arranged parallel to the vertical direction of the vehicle, and the first PCB board is arranged perpendicular to the vertical direction of the vehicle.

[0011] The advantages of the present application include:

[0012] 1. The PCB board assembly of the present application introduces a PCB board with both ends connected to the main PCB board, enabling the heat generated by the PCB assembly to dissipate through two paths. Compared with the known design, the thermal resistance is effectively reduced by half, which improves the thermal management performance of the PCB board, brings a better cooling effect to the electronic components thereon, thereby extending its service life and improving its working performance;

[0013] 2. The arrangement method of the PCB board assembly of the present application can make more effective use of space, improving the circuit density and space utilization rate of the PCB board assembly;

[0014] 3. The PCB board assembly of the present application provides a shorter electrical path. The PCB board can exhibit lower inductance and resistance, which means faster signal transmission speed and lower electromagnetic interference (EMI), which is crucial for high-speed and high-frequency applications;

[0015] 4. The PCB board assembly of the present application provides greater design flexibility, enabling designers to have more options when routing circuits and placing vertical PCB boards, so that more complex and innovative designs can be carried out to meet the strict requirements of advanced electronic systems;

[0016] 5. The PCB board assembly of the present application has better mechanical stability. Due to the balanced distribution of components and connections on both sides of the circuit board, the PCB board connected between the two main PCB boards can provide better mechanical stability, which is especially beneficial in an environment affected by vibration or mechanical stress;

[0017] 6. The PCB board assembly of the present application adopts a more compact design, which can save materials and assembly costs. In addition, due to the improved thermal management of the PCB board assembly, the demand for auxiliary cooling systems can be reduced, thereby further reducing costs;

[0018] 7. The PCB board assembly of the present application has high scalability to adapt to future upgrades. As technology advances, components will become smaller and more efficient. The structure of the PCB board assembly of the present application can well adapt to future upgrades without a complete re - design, ensuring that the product can develop with the development of emerging technologies. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Referring to the accompanying drawings, the above - mentioned and other features of the present application will become apparent, wherein,

[0020] Figure 1 shows a schematic structural diagram of a PCB board assembly proposed according to an embodiment of the present application;

[0021] Figure 2 shows a schematic structural diagram of a PCB board assembly proposed according to another embodiment of the present application;

[0022] Figure 3 shows a schematic structural diagram of a PCB board assembly proposed according to the third embodiment of the present application;

[0023] Figure 4 shows a schematic structural diagram of a PCB board assembly proposed according to the fourth embodiment of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] It is easy to understand that according to the technical solution of the present application, without changing the essential spirit of the present application, those of ordinary skill in the art can propose various mutually - replaceable structural forms and implementation methods. Therefore, the following detailed embodiments and the accompanying drawings are only exemplary descriptions of the technical solution of the present application, and should not be regarded as all of the present application or as a limitation or restriction on the technical solution of the present application.

[0025] The orientation terms such as up, down, left, right, front, back, front side, back side, top, bottom, etc. mentioned or possibly mentioned in this specification are defined relative to the structures shown in the respective drawings. They are relative concepts and may therefore change accordingly depending on their different positions and different usage states. Therefore, these or other orientation terms should not be construed as restrictive terms. In addition, terms such as "first", "second", "third", etc. or similar expressions are only used for descriptive and differentiating purposes, and should not be understood as indicating or implying the relative importance of the corresponding components or the sequence of components or the assembly sequence.

[0026] Reference Figure 1, which shows a schematic structural diagram of a PCB board assembly 100 proposed according to an embodiment of the present application. The PCB assembly in the present application adopts an arrangement of multiple horizontal boards plus multiple vertical boards. Among them, each vertical board is connected to the horizontal boards at both ends thereof, so that all components on the vertical board can be shared by the two horizontal boards to which it is connected. Thus, not only in the relative arrangement of the horizontal board and the vertical board, but also in the structure of a single PCB board itself, the effect of saving space is achieved.

[0027] For the convenience of description, the above-mentioned "horizontal board", that is, the PCB board arranged parallel to the horizontal direction (i.e., perpendicular to the gravity direction), is called the first PCB board 101. Among Figure 1 the PCB boards connected between the two first PCB boards 101 are called the second PCB boards 102. Among Figure 1 the embodiments, the PCB board assembly 100 has two first PCB boards 101 and two second PCB boards 102. The two first PCB boards 101 are arranged parallel to each other and spaced apart, and both ends of each second PCB board 102 are respectively connected to a different first PCB board 101. The second PCB board 102 is arranged perpendicular to the first PCB board 101. Thus, these four PCB boards enclose a rectangular shape. In terms of space, especially in the horizontal and vertical directions, the space occupied by it is similar to that of the known PCB board assembly. However, the PCB board assembly 100 of the present application adopts the form of a double PCB main board, that is, two first PCB boards 101 are adopted, and the second PCB boards 102 respectively connected to the two first PCB boards 101 are arranged therebetween. Thus, electronic components that can be shared by the two first PCB boards 101 can be arranged on the second PCB board 102, so that these electronic components do not need to be respectively arranged on the two first PCB boards 101, saving the layout and installation space on the first PCB board 101. The presence of the two second PCB boards 102 not only provides a shorter electrical path, with lower inductance and resistance, but also can promote the heat dissipation of the two first PCB boards 101, increasing the heat transfer path.

[0028] Since the PCB board assembly of the present application is generally used in the charging and discharging device of a vehicle, for this PCB assembly, the regulation and matching of voltage are very important. A voltage regulation module is arranged on the second PCB board 102. The two first PCB boards 101 connected to one second PCB board 102 can share this voltage regulation module to regulate their own voltages. Thus, the layout space of the voltage regulation module is saved on each first PCB board. In addition, the two first PCB boards 101 can also be communicatively connected to each other through the second PCB boards to which they are connected, thereby realizing signal transmission between the two first PCB boards and shortening the signal transmission path between the PCB boards.

[0029] It should be understood that the number of the second PCB boards 102 can be one, or more than two, which can be selected depending on the requirements of the charging device itself and the difficulty of arrangement. The second PCB boards 102 can also be arranged not perpendicular to the first PCB board 101. For example, in Figure 1 the embodiment, the second PCB boards 102 can also be arranged at other angles relative to the first PCB board 101. For example, two second PCB boards 102 and two first PCB boards 101 can also enclose a parallelogram or trapezoid shape.

[0030] Refer to Figure 2 , which shows a schematic structural diagram of a PCB board assembly 200 proposed according to another embodiment of the present application. In Figure 2 the embodiment, the number of the first PCB boards 201 is 3, and at the same time the number of the second PCB boards 202 is 4. Two second PCB boards 202 are connected between every two first PCB boards 201. In this case, the middle first PCB board 201 can share the electronic components on 4 second PCB boards 202 at the same time. In Figure 2 the embodiment, the two second PCB boards 202 above and the two second PCB boards 202 below are arranged staggeredly at the ends connected to the middle first PCB board 201 to leave an installation position for the connection of the second PCB boards 202 and the first PCB boards 201 for welding or crimping. It should be understood that the second PCB boards 202 between the uppermost first PCB board 201 and the middle first PCB board 201 and the second PCB boards 202 between the middle first PCB board 201 and the lowermost first PCB board 201 can also be arranged differently.

[0031] It should be understood that the number of the first PCB boards 201 can also be more than 3, and correspondingly, more second PCB boards 202 can also be selected for arrangement. The multiple first PCB boards 201 can also not be arranged in this form of stacking up and down, but the possibility of different arrangements in the horizontal direction can be considered.

[0032] Refer to Figure 3 , which shows a schematic structural diagram of a PCB board assembly 300 proposed according to the third embodiment of the present application. In Figure 3In the embodiment, the PCB board assembly 300 further includes a third PCB board 303. Both ends of the third PCB board 303 are respectively connected to a different first PCB board 301, just like the second PCB board 302. However, both ends of the third PCB board 303 are also respectively connected to a different second PCB board 302. That is to say, the third PCB board 303 is connected to the angle formed by the second PCB board 302 and the first PCB board 301, and is respectively connected to the second PCB board 302 and the first PCB board 301 at this angle. Thus, the third PCB board 303 forms the diagonal of the above rectangular structure, and forms two triangular structures with two first PCB boards 301 and two second PCB boards 302.

[0033] It should be understood that the "third PCB board" described in this application refers to the following PCB board, that is, both ends of it are respectively connected to a first PCB board 301, and at least one end is simultaneously connected to a first PCB board 301 and a second PCB board 302. Or rather, the third PCB board 303 not only connects two first PCB boards 301, but also incorporates at least one second PCB board 302 into this connection, so that the second PCB board 302 can also share the electronic components on the third PCB board 303.

[0034] Through the third PCB board 303, the structure formed between the first PCB board 301 and the second PCB board 302 is further strengthened. The addition of the third PCB board 303 forms a triangular structure among the PCB boards, making the structure of the PCB assembly more stable and not easily deformed. In addition, the third PCB board 303 is simultaneously connected to the first PCB board 301 and the second PCB board 302, so that both the first PCB board 301 and the second PCB board 302 can share the electronic components arranged on the third PCB board 303, thus providing more possibilities for the layout of the PCB board assembly 300.

[0035] Reference Figure 4 , which shows a schematic structural diagram of a PCB board assembly 400 according to a fourth embodiment of the present application. In Figure 4 the embodiment, the PCB board assembly 400 includes two third PCB boards 403. These two third PCB boards 403 are first connected to each other at one end, and are connected to a first PCB board 401 at this end. The other ends of these two third PCB boards 403 are simultaneously connected to another first PCB board 401 and a second PCB board 402, or rather, the other ends are connected to the corner formed by another first PCB board 401 and the second PCB board 402. From Figure 4As can be seen, the two third PCB boards 403 and the two first PCB boards 401 and the two second PCB boards 402 connected thereto form three triangular structures, further enhancing the structural stability of the PCB assembly 400. At the same time, not only can the two second PCB boards 402 and the two first PCB boards 401 share the electronic components on the two third PCB boards 403, but the two third PCB boards 403 can also share the electronic components with each other, greatly improving the layout flexibility of the PCB board assembly 400.

[0036] It should be understood that according to the sizes and layout requirements of different PCB boards, the PCB board assembly 400 may also include more than two third PCB boards 403, and it may also adopt a layout form similar to that in the fourth embodiment, where the third PCB boards 403 are connected in pairs, and the ends where they are connected together are also connected to a first PCB board 401.

[0037] In an embodiment of the present application, the ends of the second PCB boards 102, 202, 302, 402 are connected to the first PCB boards 101, 201, 301, 401 through first connectors 104, 204, 304, 404, for example, by welding or crimping. When the second PCB boards 102, 202, 302, 402 are arranged perpendicular to the first PCB boards 101, 201, 301, 401, the first connectors 104, 204, 304, 404 adopt, for example, Figure 1 the right-angle connectors as shown.

[0038] In the fourth embodiment of the present application, the two third PCB boards 403 are connected at one end through a second connector 405 and are connected to a first PCB board 401 through the second connector 404 at the said end. The connection method between the third PCB board 403 and the first PCB board 401 or the second PCB board 402 also adopts, for example, welding or crimping. The two connector connection parts of the second connector 405 are arranged perpendicular to the PCB boards they are connected to, so depending on the layout form, the two connector connection parts can have different included angles.

[0039] On the other hand, the present application also proposes an on-vehicle charger, where the on-vehicle charger includes the above-mentioned PCB board assemblies 100, 200, 300, 400. It should be understood that not only on-vehicle chargers, but also, for example, DC / DC converters in vehicles and charging connectors that need to be connected during vehicle charging can adopt such PCB board assemblies 100, 200, 300, 400.

[0040] On another aspect of the present application, a vehicle is further proposed, wherein the vehicle includes the on-vehicle charger described above. In the vehicle, the second PCB boards 102, 202, 302, 402 are arranged parallel to the vertical direction of the vehicle, and the first PCB boards 101, 201, 301, 401 are arranged perpendicular to the vertical direction of the vehicle.

[0041] It should be understood that the on-vehicle charger of the present application can be installed on various vehicles, including sedans, trucks, buses, hybrid electric vehicles, pure electric vehicles, etc. Therefore, the subject matter of the present application also aims to protect various vehicles equipped with the on-vehicle charger of the present application.

[0042] It should be understood that all of the above preferred embodiments are exemplary rather than restrictive, and all modifications or deformations made by those skilled in the art to the specific embodiments described above under the concept of the present application should be within the scope of legal protection of the present application.

Claims

1. A PCB assembly for a vehicle charging and discharging device, characterized in that: The invention comprises at least two first PCB boards and at least one second PCB board, wherein the at least two first PCB boards are arranged parallel to each other and spaced apart, two ends of the at least one second PCB board are respectively connected to one first PCB board, a voltage regulating module is arranged on the second PCB board, and the at least two first PCB boards are respectively connected to the voltage regulating module through the second PCB board and can be communicatively connected to each other through the second PCB board.

2. The PCB assembly according to claim 1, characterized in that: The at least one second PCB board is arranged perpendicular to the first PCB board.

3. The PCB assembly according to claim 2, characterized in that: At least two second PCB boards are arranged parallel to each other between every two first PCB boards.

4. The PCB assembly according to claim 3, characterized in that: It comprises at least one third PCB board, both ends of the third PCB board are respectively connected to a first PCB board, and at least one end of the two ends of the third PCB board is simultaneously connected to a first PCB board and a second PCB board.

5. The PCB assembly according to claim 4, characterized in that: A third PCB board is included, and each of the two ends of the third PCB board is simultaneously connected to a first PCB board and a second PCB board, so that the third PCB board and the two first PCB boards and two second PCB boards connected thereto form two triangular structures.

6. The PCB assembly according to claim 4, characterized in that: The invention comprises two third PCB boards, wherein the two third PCB boards are connected to each other at one end and to a first PCB board at the end, and the other end of each of the two third PCB boards is simultaneously connected to a first PCB board and a second PCB board, so that the two third PCB boards and the two first PCB boards and the two second PCB boards connected thereto form three triangular structures.

7. The PCB assembly according to any one of claims 1 to 6, characterized in that: An end portion of the second PCB board is connected to the first PCB board through a connector.

8. The PCB assembly according to claim 6, characterized in that: The two third PCB boards are connected at one end through a connector, and are connected to a first PCB board at the end through a connector.

9. A vehicle-mounted charger, characterized in that: The on-board charger comprises a PCB board assembly according to any one of claims 1 to 8.

10. A vehicle, characterized in that: The vehicle includes the on-board charger according to claim 9, the second PCB board is arranged parallel to the vertical direction of the vehicle, and the first PCB board is arranged perpendicular to the vertical direction of the vehicle.

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