Vehicle-mounted charger and vehicle

Abstract

The utility model discloses a vehicle-mounted charger and a vehicle, the vehicle-mounted charger comprises a casing, a main power board and a signal board, the casing is internally provided with a cavity for accommodating the main power board, the casing is also internally provided with a shielding cavity, an inductor device arranged on the signal board is located in the shielding cavity, and the inductor device is arranged in the shielding cavity. A signal board shielding case covering a preset position on the signal board is further arranged on one side, deviating from the shielding cavity, of the signal board, the main power board is connected with the signal board, an inductor device on the signal board is isolated and shielded through the shielding cavity, and electromagnetic interference between the main power board and the signal board can be reduced by combining the signal board shielding case on the signal board; and the operation stability is further ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle technical field, especially a kind of vehicle charger and vehicle. BACKGROUND

[0002] Vehicle charger is the core device of new energy vehicle, its performance influences battery performance and life, so it has higher requirement to its working stability.

[0003] With the increase of the number of in-vehicle equipment, the interference problem caused by electromagnetic wave radiation is increasingly prominent, how to ensure that each device can work normally and avoid mutual interference is a technical problem to be solved by the skilled in the art. SUMMARY

[0004] The utility model aims at providing a kind of vehicle charger and vehicle, can satisfy EMC (English name: Electromagnetic Compatibility, Chinese name: electromagnetic compatibility, EMC for short), to ensure its stable operation further.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A kind of vehicle charger, comprising: casing, main power board and signal board, the cavity for accommodating the main power board is equipped in the casing, shielding cavity is also equipped in the casing, the inductor device arranged on the signal board is located in the shielding cavity, the side of the signal board deviating from the shielding cavity is also equipped with signal board shielding cover, which is covered in the preset position on the signal board, the main power board and the signal board are connected.

[0007] In some embodiments, the vehicle charger further includes an EMI board, the EMI board is installed in the casing, and is arranged in a stack with the main power board, an EMI shielding cover is provided between the EMI board and the main power board.

[0008] In some embodiments, an AC input socket is provided on the first side wall of the casing, an AC magnetic ring is provided in the casing, the AC input socket and the EMI board are connected by an input line, and the input line passes through the AC magnetic ring.

[0009] In some embodiments, an OBC output connector is provided on the first side wall of the casing, an OBC output magnetic ring is provided in the casing, the OBC output connector and the EMI board are connected by an output line, and the output line passes through the OBC output magnetic ring.

[0010] In some embodiments, a DC output terminal is further arranged on the second side wall of the shell, a DC output plate is arranged in the shell, the DC output terminal is connected with the DC output plate, the DC output plate is connected with the main power plate, and a DC magnetic ring is arranged on the DC output plate.

[0011] In some embodiments, an output filter plate is arranged on the DC output plate.

[0012] In some embodiments, a DC shielding cover is further arranged in the shell.

[0013] In some embodiments, the shell comprises a shell body and a cover body, an avoiding slot for accommodating a connector of the signal plate is arranged on the shell body, a sealing member is arranged between the shell body and the cover body, and a sealing ring for the connector is arranged on the sealing member.

[0014] In some embodiments, a liquid cooling flow channel is arranged on the shell, and a MOS tube is arranged on an outer side wall of the liquid cooling flow channel, and the MOS tube is connected with the main power plate.

[0015] A vehicle comprises the on-vehicle charging machine.

[0016] Compared with the prior art, the technical scheme has the following advantages:

[0017] The on-vehicle charging machine comprises a shell, a main power plate and a signal plate, a cavity for accommodating the main power plate is arranged in the shell, a shielding cavity is further arranged in the shell, an inductor arranged on the signal plate is located in the shielding cavity, a signal plate shielding cover is further arranged on a side of the signal plate away from the shielding cavity at a preset position of the signal plate, and the main power plate is connected with the signal plate. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of the provided drawings.

[0019] Figure 1 An exploded view of the on-vehicle charging machine is provided.

[0020] Figure 2 An external structure schematic view of the on-vehicle charging machine is provided.

[0021] Figure 3 Figure 1 is a schematic diagram of the bottom structure of the housing;

[0022] Figure 4 Figure 2 is a schematic diagram of the structure of the MOS tube and ceramic substrate;

[0023] Figure 5 Figure 3 is a schematic diagram of the structure of the MOS tube assembly;

[0024] Figure 6 Figure 4 is a schematic diagram of the structure of the MOS tube assembly and the housing;

[0025] Figure 7 Figure 5 is a schematic diagram of the structure of the MOS tube assembly and the housing after assembly;

[0026] Figure 8 Figure 6 is a schematic diagram of the structure of the AC magnetic ring and the OBC output magnetic ring after assembly in the housing;

[0027] Figure 9 Figure 7 is a schematic diagram of the structure of the EMI board after assembly in the housing;

[0028] Figure 10 Figure 8 is a schematic diagram of the structure of the EMI shield after assembly in the housing;

[0029] Figure 11 Figure 9 is a schematic diagram of the structure of the AC input socket, the OBC output plug-in component and the DC output terminal when not connected to the housing;

[0030] Figure 12 Figure 10 is a schematic diagram of the structure of the AC input socket, the OBC output plug-in component and the DC output terminal when connected to the housing;

[0031] Figure 13 Figure 11 is a schematic diagram of the structure of the DC output board and the DC magnetic ring;

[0032] Figure 14 Figure 12 is a schematic diagram of the structure of the DC output board and the DC magnetic ring after assembly;

[0033] Figure 15 Figure 13 is a schematic diagram of the structure of the DC output board before assembly in the housing;

[0034] Figure 16 Figure 14 is a schematic diagram of the structure of the main power board when not assembled in the housing;

[0035] Figure 17 Figure 15 is a schematic diagram of the structure of the main power board when assembled in the housing;

[0036] Figure 18 Figure 16 is a schematic diagram of the structure of the sealing member and the signal board;

[0037] Figure 19Structure diagram for assembly of sealing member and signal plate;

[0038] Figure 20 Structure diagram for assembly of sealing member and signal plate not connected in the casing;

[0039] Figure 21 Structure diagram for signal plate shield, low voltage shield and DC shield and casing;

[0040] Figure 22 Structure diagram for casing and cover.

[0041] Reference signs are as follows:

[0042] 10-casing, 101-chamber, 102-shield chamber, 103-liquid cooling channel, 11-casing, 111-first friction welding reinforcing point, 12-cover, 13-sealing member, 131-sealing ring, 14-water channel cover plate, 141-second friction welding reinforcing point;

[0043] 20-main power plate, 201-low voltage shield;

[0044] 30-signal plate, 301-joint, 31-signal plate shield;

[0045] 40-EMI plate, 401-electric element, 41-EMI shield;

[0046] 50-AC input socket, 501-AC magnetic ring;

[0047] 60-OBC output connector, 601-OBC output magnetic ring;

[0048] 70-DC output terminal, 701-DC output plate, 702-DC magnetic ring, 703-output filter plate, 704-DC shield;

[0049] 80-MOS tube assembly, 801-MOS tube, 802-ceramic substrate. DETAILED DESCRIPTION

[0050] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0051] Please refer to Figures 1-22 .

[0052] The utility model discloses a vehicle charger which comprises a casing 10, a main power board 20 and a signal board 30. The casing 10 is internally provided with a chamber 101 for accommodating the main power board 20. A support column can be arranged at the inner bottom of the casing 10. For example, the bottom of the support column is located at the inner bottom of the chamber 101, and the side of the support column is located on the sidewall of the chamber 101 to ensure the stability of the support column. The support column can be integrally formed in the casing 10, and the main power board 20 can be connected to the support column by screws. Figure 1 and Figure 7 As shown in Figs. Figure 21 and Figure 22 The casing 10 is internally provided with a shielding chamber 102. For example, a shielding chamber 102 can be arranged at a position close to one side of the casing 10. The inductor arranged on the signal board 30 is located in the shielding chamber 102. For example, the signal board 30 is a low-voltage signal adapter board, and the inductor is arranged below the low-voltage signal adapter board. The board body of the low-voltage signal adapter board is connected to the upper end of the shielding chamber 102. The main power board 20 and the shielding chamber 102 are staggered with each other, that is, the main power board 20 does not cover the shielding chamber 102. The inductor is located in the shielding chamber 102. As shown in Figs. Figure 21 and Figure 22 The side of the signal board 30 away from the shielding chamber 102 is further provided with a signal board shielding cover 31 arranged at a predetermined position on the signal board 30. The main power board 20 and the signal board 30 are connected. In order to improve the connection effect of the two, the main power board 20 and the signal board 30 can be welded by pin arrangement to eliminate installation stress and ensure the reliability of signal transmission. The inductor on the signal board 30 is isolated and shielded by the shielding chamber 102, in combination with the signal board shielding cover 31 on the signal board 30, which can reduce the electromagnetic interference between the main power board 20 and the signal board 30, thereby ensuring the stability of the operation.

[0053] In some embodiments, as shown in Figs. Figure 9 and Figure 10As shown, the on-board charger further comprises an EMI (English name: Electromagnetic Interference, Chinese name: electromagnetic interference, EMI for short) board 40, namely an electromagnetic interference board, hereinafter referred to as EMI board 40. The EMI board 40 is installed in the shell 10 and connected with the main power board 20. The EMI board 40 and the main power board 20 are arranged in a stack, and an EMI shielding cover 41 is arranged between the EMI board 40 and the main power board 20. For example, a support can be arranged on the inner bottom of the shell 10. The support can be a vertically arranged shielding plate. A plurality of shielding plates surround a shielding space. An electrical element 401 is arranged on the bottom of the EMI board 40. The electrical element 401 is arranged in the shielding space. The EMI shielding cover 41 is connected above the EMI board 40, for example, by screws. The main power board 20 is arranged above the EMI board 40 to make full use of the internal space of the shell 10. The EMI shielding cover 41 can shield the EMI board 40 from electromagnetic interference, thereby ensuring the reliable operation of the EMI board 40. Further, as shown in Figure 21 and Figure 22 The main power board 20 is connected with a low-voltage shielding cover 201. The low-voltage shielding cover 201 comprises a connecting plate and a shielding spring. The connecting plate is preferably an L-shaped plate. The horizontal plate of the connecting plate is connected with the main power board 20. The vertical plate is connected with the shielding spring or the connecting plate and the shielding spring are integrally formed. In addition, the other side of the shielding spring is provided with a downwardly bent bending plate. The shielding spring is in contact with the inner top of the shell 10. The shielding spring can increase the grounding effect of the low-voltage shielding cover 201. In addition, the shielding spring and the shell 10 are soft connected to meet the vibration requirements of the whole machine.

[0054] In some embodiments, as shown in Figure 11 and Figure 12 The first side wall of the shell 10 is provided with an AC (English name: Alternating Current, Chinese name: alternating current, AC for short) input socket 50. For example, a mounting hole can be arranged on the side wall of the shell 10. The AC input socket 50 can be connected in the mounting hole by fasteners. An AC magnetic ring 501 is arranged in the shell 10. The AC magnetic ring 501 can be fixed in the shell 10 by fasteners. The AC input socket 50 and the EMI board 40 are connected by input lines. The input lines pass through the AC magnetic ring 501. The AC magnetic ring 501 can reduce the influence of AC output on EMC.

[0055] In some embodiments, as shown in Figure 11 and Figure 12As shown, the first side wall of the shell 10 is provided with an OBC (English name: OnBoard Charger, Chinese name: vehicle charger, OBC for short) output connector 60. For example, a mounting hole can be provided on the side wall of the shell 10, and the OBC output connector 60 can be connected in the mounting hole through a fastener. The shell 10 is provided with an OBC output magnetic ring 601, which can be fixed in the shell 10 through a fastener. The OBC output connector 60 and the EMI board 40 are connected through an output line, and the output line passes through the OBC output magnetic ring 601.

[0056] In some embodiments, as shown in the first side wall of the shell 10 is provided with an OBC (English name: OnBoard Charger, Chinese name: vehicle charger, OBC for short) output connector 60. For example, a mounting hole can be provided on the side wall of the shell 10, and the OBC output connector 60 can be connected in the mounting hole through a fastener. The shell 10 is provided with an OBC output magnetic ring 601, which can be fixed in the shell 10 through a fastener. The OBC output connector 60 and the EMI board 40 are connected through an output line, and the output line passes through the OBC output magnetic ring 601. Figures 11-15 As shown, the second side wall of the shell 10 is also provided with a DC (English name: Direct Current, Chinese name: direct current, DC for short) output terminal 70. The shell 10 is provided with a DC output board 701, which can be selected as a DC output copper plate. The DC output terminal 70 is connected with the DC output board 701. The DC output board 701 is connected with the main power board 20. The DC output board 701 is provided with a DC magnetic ring 702, which can be pasted on the DC output board 701. In order to facilitate the connection of the DC output board 701, a positioning column can be injection molded on the DC output board 701, and the shell 10 is fixed through the positioning column. The DC output board 701 is provided with an output filter board 703, which is connected with the DC output board 701 and fixed on the shell 10. The output filter board 703 can be fixed in the shell 10 through a screw. Further, the shell 10 is also provided with a DC shielding cover 704, which is fixed in the shell 10 and located above the DC output board 701. The DC shielding cover 704 can be fixed in the shell 10 through a screw. The vehicle charger can be a bidirectional vehicle charger. When charging, the AC input socket 50 serves as an input terminal, and the DC output terminal 70 serves as an output terminal. When the power battery needs to provide energy for external load, the DC output terminal 70 can receive the power of the power battery, and the AC input socket 50 can transmit the power to the external load, so that the vehicle charger can meet the demand of the power battery providing energy for external load, and can meet the functional demand of vehicle-to-vehicle charging.

[0057] The DC output terminal 70 is arranged on the second side wall of the shell 10, and the AC input socket 50 and the OBC output connector 60 are arranged on the first side wall of the shell 10. The corresponding device structures arranged in the shell 10 can be reasonably distributed in space, so that the overall structure of the vehicle charger is compact, and the connection between the vehicle charger and the external equipment is more convenient, and the wiring space is larger.

[0058] In some embodiments, as shown in the first side wall of the shell 10 is provided with an OBC (English name: OnBoard Charger, Chinese name: vehicle charger, OBC for short) output connector 60. For example, a mounting hole can be provided on the side wall of the shell 10, and the OBC output connector 60 can be connected in the mounting hole through a fastener. The shell 10 is provided with an OBC output magnetic ring 601, which can be fixed in the shell 10 through a fastener. The OBC output connector 60 and the EMI board 40 are connected through an output line, and the output line passes through the OBC output magnetic ring 601. Figure 22As shown, the casing 10 comprises a shell 11 and a cover 12, the cover 12 is covered on the shell 11, wherein the shell 11 is preferably a top-opened cuboid structure, the cover 12 can be connected on the shell 11 by screws, for example, a plurality of connecting holes can be arranged at the edge position of the upper end of the shell 11, a plurality of hole positions corresponding to the connecting holes are arranged at the edge position of the cover 12, wherein the shell 11 is provided with a avoiding slot for accommodating the connector 301 of the signal board 30, a sealing element 13 is arranged between the shell 11 and the cover 12, and the specific structure is as follows Figures 18-20 As shown, the sealing element 13 is provided with a sealing ring 131 for the connector 301, the sealing ring 131 and the sealing element 13 are integrally injection molded, and the sealing element 13 and the sealing ring 131 can ensure the sealing between the cover 12 and the shell 11 and the connector 301.

[0059] In some embodiments, as shown in the figure, Figure 6 As shown, the casing 10 is provided with a liquid cooling flow channel 103, wherein the liquid cooling flow channel 103 can be integrally formed in the casing 10, or separately formed and then fixed in the casing 10. For example, Figure 3 As shown, the outer bottom of the shell 11 of the casing 10 is provided with an upwardly protruding groove, the lower part of the shell 11 is provided with a water channel cover plate 14, the water channel cover plate 14 and the groove form the liquid cooling flow channel 103, and the water channel cover plate 14 and the edge of the shell 11 can be welded by friction welding process, in order to ensure the structural strength, the first friction welding strengthening point 111 can be arranged at the bottom of the shell 11, and the second friction welding strengthening point 141 corresponding to the first friction welding strengthening point 111 can be arranged on the water channel cover plate 14. The outer side wall of the liquid cooling flow channel 103 is provided with a MOS tube 801, the number of the MOS tube 801 can be selected as required, and the specific structure is as follows Figures 4-7 As shown, the MOS tube 801 can be positioned and bonded on the ceramic substrate 802 by a tool to form a MOS tube assembly 80, and the bonded MOS tube assembly 80 is bonded on the casing 10 by a positioning tool, and specifically can be bonded on the liquid cooling flow channel 103, wherein the MOS tube 801 is connected with the main power board 20.

[0060] The utility model embodiment further provides a vehicle, including any one of the above-embodiment provided vehicle-mounted charger, vehicle-mounted charger is installed on the vehicle, the beneficial effect about the vehicle, reference any one of the above-embodiment provided vehicle-mounted charger can, here no longer repeat.

[0061] It should be noted that in the present specification, relational terms such as first and second are used solely to distinguish one entity from another entity, without necessarily requiring or implying any actual such relationship or order between such entities.

[0062] The various embodiments are described in the specification by way of progression, each building on the last to facilitate ease of understanding. The same or similar reference numerals are used in the drawings and description to refer to the same or like parts, components and operations.

[0063] The above has carried out the detailed introduction to the vehicle charger and the vehicle provided by the utility model. The principle and implementation mode of the utility model are described by applying specific examples in this paper, and the above embodiment is only used for helping understanding the core idea of the utility model. It should be pointed out that, for the ordinary skilled person in the art, on the premise of not departing from the principle of the utility model, the utility model can be improved and modified in several ways, and these improvements and modifications also fall within the protection scope of the utility model claims.

Claims

1. A vehicle-mounted charger, characterized in that: include: A housing (10), a main power board (20) and a signal board (30), wherein the housing (10) is provided with a chamber (101) for accommodating the main power board (20), the housing (10) is further provided with a shielding cavity (102), an inductor device arranged on the signal board (30) is located in the shielding cavity (102), a signal board shielding cover (31) is further provided on a side of the signal board (30) facing away from the shielding cavity (102) and is arranged at a preset position on the signal board (30), and the main power board (20) and the signal board (30) are connected.

2. The on-board charger according to claim 1, characterized in that: The on-board charger further comprises an EMI board (40), the EMI board (40) being installed in the housing (10) and being stacked with the main power board (20), and an EMI shielding cover (41) being provided between the EMI board (40) and the main power board (20).

3. The on-board charger according to claim 2, characterized in that: An AC input socket (50) is provided on a first side wall of the housing (10), an AC magnetic ring (501) is provided in the housing (10), and the AC input socket (50) and the EMI board (40) are connected via an input line, and the input line passes through the AC magnetic ring (501).

4. The on-board charger according to claim 3, characterized in that: An OBC output connector (60) is provided on a first side wall of the housing (10), an OBC output magnetic ring (601) is provided in the housing (10), and the OBC output connector (60) and the EMI board (40) are connected via an output line, and the output line passes through the OBC output magnetic ring (601).

5. The on-board charger according to claim 1, characterized in that: A DC output terminal (70) is further provided on the second side wall of the housing (10), a DC output board (701) is provided in the housing (10), the DC output terminal (70) is connected to the DC output board (701), the DC output board (701) is connected to the main power board (20), and a DC magnetic ring (702) is provided on the DC output board (701).

6. The on-board charger according to claim 5, characterized in that: An output filter board (703) is provided on the DC output board (701).

7. The on-board charger according to claim 5, characterized in that: A DC shielding cover (704) is also provided in the casing (10).

8. The on-vehicle charger according to claim 1, characterized in that: The housing (10) comprises a shell (11) and a cover (12); the shell (11) is provided with a relief groove for accommodating a connector (301) of the signal board (30); a sealing member (13) is provided between the shell (11) and the cover (12); and the sealing member (13) is provided with a sealing ring (131) for the connector (301) to pass through.

9. The on-board charger according to any one of claims 1 to 8, characterized in that: A liquid cooling channel (103) is provided on the housing (10), a MOS tube (801) is provided on the outer side wall of the liquid cooling channel (103), and the MOS tube (801) is connected to the main power board (20).

10. A vehicle, characterized in that: The vehicle-mounted charger comprises the vehicle-mounted charger according to any one of claims 1 to 9.

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