Circuit board connecting device, vehicle-mounted charger, vehicle-mounted DC / DC converter and vehicle

Abstract

The utility model discloses a circuit board connecting device, a vehicle-mounted charger, a vehicle-mounted DC / DC converter and a vehicle, and relates to the technical field of automobile power supply layout, the circuit board connecting device comprises a first circuit board and a second circuit board; the first circuit board comprises a mounting piece, the mounting piece is provided with a signal connecting part and a power connecting part, the signal connecting part is used for transmitting a control signal, and the power connecting part is used for transmitting a power signal; the second circuit board is provided with a mounting position, a first connecting part and a second connecting part, when the mounting piece and the mounting position are mounted in place, the first connecting part is in contact connection with the signal connecting part, and the second connecting part is in contact connection with the power connecting part. According to the technical scheme, the integration level of the circuit board connecting device can be improved, and the space utilization rate and the power density of at least one of the vehicle-mounted charger and the vehicle-mounted DC / DC converter are further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile power layout, especially relates to a circuit board connecting device, vehicle-mounted charger, vehicle-mounted DC / DC converter and vehicle. BACKGROUND

[0002] The traditional interconnection mode between circuit boards has intermediate devices, low integration and low space utilization, and is difficult to meet the demand of high power density. UTILITY MODEL CONTENTS

[0003] The utility model discloses a circuit board connecting device, vehicle-mounted charger, vehicle-mounted DC / DC converter and vehicle, which aims to improve the integration of the circuit board connecting device, and further improve the space utilization and power density of at least one of the vehicle-mounted charger and the vehicle-mounted DC / DC converter.

[0004] To achieve the above object, the utility model provides a circuit board connecting device, which comprises:

[0005] A first circuit board comprises a mounting piece, the mounting piece has a signal connecting part and a power connecting part, the signal connecting part is used for transmitting a control signal, and the power connecting part is used for transmitting a power signal;

[0006] A second circuit board has a mounting position, a first connecting part and a second connecting part, when the mounting piece is mounted in place, the first connecting part is in contact with the signal connecting part, and the second connecting part is in contact with the power connecting part.

[0007] In an embodiment, the first circuit board is provided with a signal module, the signal module is electrically connected with the signal connecting part, and the signal module comprises at least one of an enabling module, a driving module and a power supply module;

[0008] And / or, the first circuit board is provided with a power circuit, the power circuit is electrically connected with the power connecting part, and the power circuit comprises at least one of a boost circuit, a buck circuit and a boost-buck circuit.

[0009] In an embodiment, the mounting position is a slot provided on the second circuit board, the mounting piece is adaptively plugged into the slot, and the first connecting part and the second connecting part are arranged in the slot.

[0010] In an embodiment, the mounting member is a pin, the pin comprising a pin body, a signal connecting piece and a power connecting piece, the signal connecting piece and the power connecting piece being separately arranged on the pin body, the signal connecting piece being a signal connecting portion, and the power connecting piece being a power connecting portion; the first connecting portion is a signal pad arranged on an inner wall of the slot, and the second connecting portion is a power pad arranged on the inner wall of the slot.

[0011] In an embodiment, the signal pad is welded with the signal connecting piece;

[0012] and / or, the power pad is welded with the power connecting piece.

[0013] In an embodiment, the signal connecting piece and the power connecting piece are separately arranged on different sides of the pin body.

[0014] In an embodiment, the pin body has opposite first and second sides, one of the signal connecting piece and the power connecting piece being arranged on the first side, and the other of the signal connecting piece and the power connecting piece being arranged on the second side.

[0015] In an embodiment, the first circuit board further comprises a first board body, the first board body having a first edge portion, and the mounting member is arranged on the first edge portion.

[0016] In an embodiment, the first circuit board is arranged to extend along a second direction, the mounting member is arranged towards the mounting position, the second circuit board is arranged to extend along a third direction, and the second direction intersects the third direction.

[0017] In an embodiment, the mounting member and the mounting position are respectively provided in plurality, and the plurality of mounting members are one-to-one mounted on the plurality of mounting positions.

[0018] In an embodiment, the plurality of mounting members are separately arranged on the first edge portion and are arranged at intervals along a third direction;

[0019] The plurality of mounting positions are arranged at intervals along the third direction.

[0020] In an embodiment, the plurality of mounting positions are separately arranged on the same side of the second circuit board.

[0021] The utility model further provides a vehicle-mounted charging machine which comprises the circuit board connecting device.

[0022] The utility model further provides a vehicle-mounted DC / DC converter which comprises the circuit board connecting device.

[0023] The utility model also provides a vehicle, including the vehicle-mounted charger as described above, and / or, the vehicle-mounted DC / DC converter as described above.

[0024] Compared with the prior art, the utility model has the following beneficial effects:

[0025] The technical scheme of the utility model discloses a first circuit board and a second circuit board, the first circuit board includes a mounting piece, the mounting piece has a signal connecting portion and a power connecting portion, the signal connecting portion is used for transmitting a control signal, and the power connecting portion is used for transmitting a power signal, the second circuit board has a mounting position, a first connecting portion and a second connecting portion, and when the first circuit board and the second circuit board are assembled, the mounting piece can be mounted on the mounting position, the first connecting portion is in contact connection with the signal connecting portion, the second connecting portion is in contact connection with the power connecting portion when the mounting piece is mounted in place, the connection and electrical connection of the first circuit board and the second circuit board are realized, the control signal received by the first circuit board can be transmitted to the second circuit board through the signal connecting portion and the first connecting portion, the power signal received by the first circuit board can be transmitted to the second circuit board through the power connecting portion and the second connecting portion, and the signal transmission of the two circuit boards is realized. BRIEF DESCRIPTION OF DRAWINGS

[0026] The drawings incorporated into the specification and forming part of the specification, show embodiments consistent with the utility model, and together with the specification, serve to explain the principle of the utility model.

[0027] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced as follows, and obviously, other drawings can be obtained by the person skilled in the art without creative labor under the premise.

[0028] Figure 1 The PCB connecting assembly in the prior art;

[0029] Figure 2 The structural schematic diagram of the circuit board connecting device provided by the utility model;

[0030] Figure 3 The front structure schematic diagram of the mounting piece provided by the utility model;

[0031] Figure 4 The back structure schematic diagram of the mounting piece provided by the utility model;

[0032] Figure 5 Fig. 1 is a schematic diagram of an existing PCB and the structure of pins thereon;

[0033] Figure 6 Fig. 2 is a schematic diagram of the front structure of a first circuit board and a plurality of mounting pieces thereon according to the present application;

[0034] Figure 7 Fig. 3 is a schematic diagram of the back structure of the first circuit board and the plurality of mounting pieces thereon according to the present application.

[0035] Brief Description of the Drawings

[0036] 100, circuit board connecting device; 1, first circuit board; 11, mounting piece; 111, signal connecting part; 112, power connecting part; 113, pin body; 113a, first side; 113b, second side; 12, first board body; 121, first edge part; 2, second circuit board; 21, mounting position; 22, first connecting part; 23, second connecting part.

[0037] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a 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 labor fall within the scope of the present application.

[0039] The on-board charger OBC (On-Board Charger) and the on-board DC / DC (Direct current-Direct current) converter are important components of an electric vehicle, and both of them usually include a plurality of PCBs with different functions. For example, the on-board charger OBC can include but is not limited to an EMC (Electromagnetic Compatibility) filter board, a power board, a control board, a power supply board, etc. To realize the interconnection between single boards, the inter-board signal communication is generally performed by means of cables, connecting pins, male and female seat plug-in, etc., and the inter-board power flow is performed by means of welding hardware, screws, etc.

[0040] As shown in Fig. 1, the existing PCB and the structure of pins thereon include a first circuit board 1 and a plurality of mounting pieces 11. The mounting pieces 11 are arranged on the first circuit board 1, and each mounting piece 11 includes a signal connecting part 111 and a power connecting part 112. The signal connecting part 111 is connected to the first circuit board 1 through a first side 113a, and the power connecting part 112 is connected to the first circuit board 1 through a second side 113b. Figure 1 Figure 1 ​Structural diagrams of multiple embodiments of existing PCB connecting assemblies. In the first embodiment, a first PCB is connected with a second PCB through screws / fasteners; in the second embodiment, the first PCB is connected with the second PCB through male terminals and female terminals; and in the third embodiment, the first PCB is connected with the second PCB through a first terminal, a cable and a second terminal. These manners have a common point that at least one intermediate device is included. Under the trend of high power, miniaturization, low cost and high integration of automobile power supply products, the traditional interconnection manner of PCBs has the intermediate device, low integration and low space utilization, and is difficult to meet the demand of high power density.

[0041] To this end, the utility model provides a circuit board connecting device 100, aims at improving the integration of the circuit board connecting device 100, and then improving the space utilization and power density of at least one of the vehicle-mounted charger and the vehicle-mounted DC / DC converter.

[0042] Reference Figures 2 to 4 In an embodiment of the utility model, the circuit board connecting device 100 includes a first circuit board 1 and a second circuit board 2, the first circuit board 1 includes a mounting piece 11, the mounting piece 11 has a signal connecting part 111 and a power connecting part 112, the signal connecting part 111 is used to transmit control signals, and the power connecting part 112 is used to transmit power signals, the second circuit board 2 has a mounting position 21, a first connecting part 22 and a second connecting part 23, when the mounting piece 11 is mounted in place with the mounting position 21, the first connecting part 22 is in contact with the signal connecting part 111, and the second connecting part 23 is in contact with the power connecting part 112.

[0043] In the embodiment, the first circuit board 1 includes the mounting piece 11, and the mounting piece 11 has the signal connecting part 111 and the power connecting part 112. The signal connecting part 111 is used to transmit control signals, and the type of control signals is determined according to the type of signal module connected with the signal connecting part 111, for example, the first circuit board 1 is provided with a driving module, the signal connecting part 111 is electrically connected with the driving module, and the signal connecting part 111 is used to receive the driving control signals output by the driving module and transmit. The power connecting part 112 is used to transmit power signals, and the type of power signals is determined according to the type of power circuit connected with the power connecting part 112, for example, the first circuit board 1 is provided with a boost circuit, the power connecting part 112 is electrically connected with the boost circuit, and the power connecting part 112 is used to receive the boost signals output by the boost circuit and transmit.

[0044] The second circuit board 2 comprises a mounting position 21, a first connecting portion 22 and a second connecting portion 23. The mounting position 21 is configured to be mounted with the mounting member 11. Optionally, the mounting position 21 can be at least one of a slot and a clamping groove arranged on the second circuit board 2. For example, when the mounting position 21 is a slot arranged on the second circuit board 2, the mounting member 11 is adapted to be inserted into the slot to mount the first circuit board 1 on the second circuit board 2; or when the mounting position 21 is a clamping groove arranged on the second circuit board 2, the mounting member 11 is adapted to be clamped in the clamping groove to mount the first circuit board 1 on the second circuit board 2. It should be noted that when the mounting member 11 is mounted on the mounting position 21, the first connecting portion 22 is in contact with the signal connecting portion 111, and the second connecting portion 23 is in contact with the power connecting portion 112, so as to connect the first circuit board 1 and the second circuit board 2 into a whole, and realize the electrical connection between the first circuit board 1 and the second circuit board 2. In this way, the control signal received by the first circuit board 1 can be transmitted to the second circuit board 2 through the signal connecting portion 111 and the first connecting portion 22, and the power signal received by the first circuit board 1 can be transmitted to the second circuit board 2 through the power connecting portion 112 and the second connecting portion 23, so as to realize the signal transmission between the two circuit boards, that is, the communication between the two circuit boards. Moreover, through the above-mentioned interconnection between the boards, the intermediate device between the first circuit board 1 and the second circuit board 2 is no longer needed, and the reduction of the intermediate device can reduce the volume of the circuit board connecting device 100, improve the integration of the circuit board connecting device 100, and improve the space utilization and power density of at least one of the vehicle-mounted charger and the vehicle-mounted DC / DC converter. Moreover, for the case where a plurality of first circuit boards 1 and second circuit boards 2 are provided, one intermediate device can be saved between each two circuit boards, and the large reduction in the number of intermediate devices can greatly reduce the overall volume of the circuit board connecting device 100, so as to have a higher integration.

[0045] It should be noted that the circuit board connecting device 100 of the embodiment can be applied to at least one of the on-board charger OBC and the on-board DC / DC converter. Among them, the on-board charger OBC can include but is not limited to an EMC filter board, an AC / DC conversion board, a power factor correction board, a first DC / DC conversion board, a first control board, and a power supply board; the EMC filter board is used to filter high-frequency noise in the input alternating current, improve the stability of the electrical system; the AC / DC conversion board is used to convert the input alternating current into high-voltage direct current, and provide stable direct current power for the subsequent circuit; the power factor correction board is used to improve the input power factor, suppress high-order harmonics, improve the utilization rate of electrical energy, and reduce the electrical energy loss in the conversion process; the first DC / DC conversion board is used to meet the requirements of battery charging on current and voltage, realize electrical isolation, and ensure the safety and efficiency of the charging process; the first control board is used to coordinate the work of each circuit board of the on-board charger OBC, and realize the control of the entire charging process; the power supply board is used to power each circuit board of the on-board charger OBC; the on-board DC / DC converter can include but is not limited to a second DC / DC conversion board and a second control board; the second DC / DC conversion board is used to convert the high-voltage direct current output by the on-board charger OBC into low-voltage direct current and output to the low-voltage load of the electric vehicle; the second control board is used to monitor and adjust the low-voltage voltage and low-voltage current output by the on-board DC / DC converter.

[0046] That is, when the circuit board connecting device 100 of the embodiment is applied to the on-board charger OBC, the first circuit board 1 and the second circuit board 2 can be one of the EMC filter board, the AC / DC conversion board, the power factor correction board, the first DC / DC conversion board, the first control board, and the power supply board; when the circuit board connecting device 100 of the embodiment is applied to the on-board DC / DC converter, the first circuit board 1 and the second circuit board 2 can be one of the second DC / DC conversion board and the second control board. It can be understood that the number of the first circuit board 1 and the second circuit board 2 is generally not limited, and can be designed according to the charging requirements of the on-board charger OBC and the on-board DC / DC converter. For the convenience of understanding, as an example, the first circuit board 1 and the second circuit board 2 are provided with one, the first circuit board 1 is the power factor correction board of the on-board charger OBC, and the second circuit board 2 is the first DC / DC conversion board of the on-board charger OBC. The application scenario of the circuit board connecting device 100 of the embodiment is described.

[0047] Specifically, the power factor correction board is provided with a driving module and a voltage boosting circuit, the signal connection part 111 is electrically connected with the driving module, and the voltage boosting circuit is electrically connected with the power connection part 112. When the mounting part 11 of the power factor correction board is mounted to the mounting position 21 of the first DC / DC conversion board, the signal connection part 111 receives the driving control signal output by the driving module and transmits the driving control signal to the first DC / DC conversion board through the first connection part 22, and the first DC / DC conversion board converts the input alternating current into high-voltage direct current according to the received driving control signal and then outputs the high-voltage direct current; the power connection part 112 receives the voltage boosting signal output by the voltage boosting circuit and transmits the voltage boosting signal to the first DC / DC conversion board through the second connection part 23, and the first DC / DC conversion board converts the input alternating current into direct current and then boosts the direct current according to the received voltage boosting signal and then outputs the boosted direct current. Through the above connection mode, no intermediate device needs to be arranged between the power factor correction board and the first DC / DC conversion board, and the reduction of the intermediate device can reduce the volume of the circuit board connecting device 100, improve the integration of the circuit board connecting device 100, and improve the space utilization and power density of the vehicle-mounted charger. It can also be inferred that, in order to further reduce the volume of the vehicle-mounted charger, the connection mode of other functional boards of the vehicle-mounted charger can refer to the above embodiment, and specific repeated descriptions are not made here. Similarly, the connection mode between the boards of the vehicle-mounted DC / DC converter can also refer to the above embodiment, and specific repeated descriptions are not made here.

[0048] The technical scheme of the utility model discloses through setting up first circuit board 1 and second circuit board 2, first circuit board 1 includes mounting part 11, mounting part 11 has signal connection part 111 and power connection part 112, signal connection part 111 is used for transmitting control signal, and power connection part 112 is used for transmitting power signal, second circuit board 2 has mounting position 21, first connection part 22 and second connection part 23, thus, in actual application, when first circuit board 1 is assembled with second circuit board 2, mounting part 11 can be installed in mounting position 21, and when mounting in place, first connection part 22 is connected with signal connection part 111, and second connection part 23 is connected with power connection part 112, realizing the connection and electric connection of first circuit board 1 and second circuit board 2, the control signal received by first circuit board 1 can be transmitted to second circuit board 2 through signal connection part 111 and first connection part 22, and the power signal received by first circuit board 1 can be transmitted to second circuit board 2 through power connection part 112 and second connection part 23, realizing the signal transmission of two circuit boards. Through the above connection mode, no intermediate device needs to be arranged between first circuit board 1 and second circuit board 2, and the reduction of the intermediate device can reduce the volume of the circuit board connecting device 100, improve the integration of the circuit board connecting device 100, and improve the space utilization and power density of at least one of the vehicle-mounted charger and the vehicle-mounted DC / DC converter.

[0049] Refer toFigures 2 to 4 In an embodiment of the present application, the first circuit board 1 is provided with a signal module, the signal module is electrically connected with the signal connecting part 111, and the signal module comprises at least one of an enabling module, a driving module and a power supply module.

[0050] As an example, the first circuit board 1 is provided with the enabling module, the driving module and the power supply module, and the enabling module, the driving module and the power supply module are respectively electrically connected with the signal connecting part 111. The signal connecting part 111 is used for receiving an enabling control signal output by the enabling module, a driving control signal output by the driving module and a power supply control signal output by the power supply module, and transmitting the signals to the second circuit board 2 through the first connecting part 22 when the mounting part 11 and the mounting position 21 are assembled in place, so as to realize transmission of control signals between the first circuit board 1 and the second circuit board 2.

[0051] In another embodiment of the present application, the first circuit board 1 is provided with a power circuit, the power circuit is electrically connected with the power connecting part 112, and the power circuit comprises at least one of a step-up circuit, a step-down circuit and a step-up and step-down circuit.

[0052] As another example, the first circuit board 1 is provided with the step-up circuit, and the step-up circuit is electrically connected with the power connecting part 112. The power connecting part 112 is used for receiving a step-up signal output by the step-up circuit, and transmitting the signal to the second circuit board 2 through the second connecting part 23 when the mounting part 11 and the mounting position 21 are assembled in place, so as to realize transmission of power signals between the first circuit board 1 and the second circuit board 2.

[0053] Referring to Figures 2 to 4 In an embodiment of the present application, the mounting position 21 is a slot arranged on the second circuit board 2, the mounting part 11 is plug-in adapted with the slot, and the first connecting part 22 and the second connecting part 23 are arranged in the slot.

[0054] In the embodiment, the mounting position 21 is a slot arranged on the second circuit board 2, and the size and shape of the slot are designed according to the size and shape of the mounting part 11. For example, when the cross-sectional shape of the mounting part 11 is rectangular, the cross-sectional shape of the slot is also rectangular to realize plug-in adaptation of the mounting part 11 and the slot. The first connecting part 22 and the second connecting part 23 are arranged on the inner wall of the slot. When the mounting part 11 is plug-in adapted with the slot, the signal connecting part 111 of the mounting part 11 is in contact with the first connecting part 22 of the inner wall of the slot, and the power connecting part 112 of the mounting part 11 is in contact with the second connecting part 23 of the inner wall of the slot. In this way, the physical connection between the first circuit board 1 and the second circuit board 2 is realized, and the electrical connection between the first circuit board 1 and the second circuit board 2 is also realized. This connection mode is not only simple and convenient, but also can save the cost of connecting the first circuit board 1 and the second circuit board 2.

[0055] With reference to Figure 3 And Figure 4 In another embodiment of the utility model, the mounting piece 11 is a pin, the pin includes a pin body 113, a signal connecting piece and a power connecting piece, the signal connecting piece and the power connecting piece are separately arranged on the pin body 113, the signal connecting piece is a signal connecting portion 111, and the power connecting piece is a power connecting portion 112; the first connecting portion 22 is a signal pad arranged on the inner wall of the slot, and the second connecting portion 23 is a power pad arranged on the inner wall of the slot.

[0056] In the embodiment, the mounting piece 11 is realized by a pin, and the pin includes a pin body 113, a signal connecting piece and a power connecting piece. The first circuit board 1 further includes a first board body 12, and optionally, the pin body 113 can be arranged at the middle part of the first board body 12 or at the edge part of the first board body 12, which is not limited here. The signal connecting piece is a signal connecting portion 111, and the power connecting portion 112 is a power connecting portion 112. Optionally, the signal connecting piece can be realized by a first pin connecting piece, and the power connecting piece can be realized by a second pin connecting piece. The first pin connecting piece and the second pin connecting piece are separately arranged on the pin body 113, and specifically, the first pin connecting piece and the second pin connecting piece can be arranged on the same side of the pin body 113, or the first pin connecting piece can be arranged on a first side 113a of the pin body 113, and the second pin connecting piece can be arranged on a second side 113b of the pin body 113, which is different from the first side 113a. The first connecting portion 22 is a signal pad arranged on the inner wall of the slot, and the second connecting portion 23 is a power pad arranged on the inner wall of the slot.

[0057] In the process of assembling the first circuit board 1 and the second circuit board 2, when the pin body 113 is plugged into the slot, the signal pad is in contact with the first pin connecting piece, and the power pad is in contact with the second pin connecting piece, that is, the first circuit board 1 is fixed on the second circuit board 2 by plugging, and is electrically connected to the second circuit board 2 by the contact between the connecting piece and the pad. This connection method is not only simple, but also does not need to additionally arrange an intermediate device for realizing the electrical connection between the two circuit boards, thereby saving the intermediate device and reducing the size of the circuit board connecting device 100.

[0058] To strengthen the connection strength of the first circuit board 1 and the second circuit board 2, with reference to Figure 3 And Figure 4 In an embodiment of the utility model, the signal pad is welded with the signal connecting piece;

[0059] And / or, the power pad is welded with the power connecting piece.

[0060] As an example, the signal pads are welded with the signal connecting pieces, and the power pads are welded with the power connecting pieces. In actual production, when the pin body 113 is plugged into the slot, a spot welding tool can be used to spot tin between the signal pads and the signal connecting pieces, and between the power pads and the power connecting pieces, so as to weld the signal connecting pieces on the signal pads and weld the power connecting pieces on the power pads. In this way, the connection strength of the signal pads and the signal connecting pieces can be enhanced, and the connection strength of the power pads and the power connecting pieces can be enhanced, thereby stabilizing the electrical connection between the first circuit board 1 and the second circuit board 2 and maintaining the stability of signal transmission between the first circuit board 1 and the second circuit board 2.

[0061] With reference to Figure 3 and Figure 4 In an embodiment of the present application, the signal connecting pieces and the power connecting pieces are arranged on different sides of the pin body 113.

[0062] In the embodiment, the pin body 113 has opposite first and second sides 113a and 113b, the signal connecting pieces are arranged on the first side 113a, and the power connecting pieces are arranged on the second side 113b. Alternatively, the pin body 113 has adjacent third and fourth sides, the signal connecting pieces are arranged on the third side, and the power connecting pieces are arranged on the fourth side. In this way, the signal connecting pieces and the power connecting pieces can be arranged on different sides of the pin body 113, so as to avoid the situation that the pin body 113 needs to be designed too large and the slot needs to be designed too deep.

[0063] With reference to Figure 3 and Figure 4 In an embodiment of the present application, the pin body 113 has opposite first and second sides 113a and 113b, one of the signal connecting pieces and the power connecting pieces is arranged on the first side 113a, and the other of the signal connecting pieces and the power connecting pieces is arranged on the second side 113b.

[0064] As an example, the pin body 113 has opposite first and second sides 113a and 113b in a first direction, the signal connecting pieces are arranged on the first side 113a, and the power connecting pieces are arranged on the second side 113b. The first direction is the thickness direction of the first circuit board 1. In this way, the signal connecting pieces and the power connecting pieces can be arranged on opposite sides of the pin body 113, so as to avoid the situation that the pin body 113 needs to be designed too large and the slot needs to be designed too deep, and to reduce the interference between signals received by the signal connecting pieces and the power connecting pieces.

[0065] With reference to Figures 2 to 4In an embodiment of the present application, the first circuit board 1 further comprises a first board body 12, the first board body 12 has a first edge part 121, and the mounting part 11 is arranged on the first edge part 121.

[0066] In the embodiment, the first board body 12 is arranged along a second direction, the first edge part 121 is arranged along a third direction, and the mounting part 11 is mounted on the first edge part 121, wherein the second direction is the width direction of the first circuit board 1, and the third direction is the length direction of the first circuit board 1. By arranging the pin body 113 on the first edge part 121 of the first board body 12, the convenience of plug-in adaptation of the pin body 113 and the slot can be improved, and the assembly efficiency of the first circuit board 1 and the second circuit board 2 can be improved.

[0067] To further improve the assembly efficiency of the first circuit board 1 and the second circuit board 2, referring to Figure 2 In an embodiment of the present application, the first circuit board 1 is arranged along a second direction, the mounting part 11 is arranged towards the mounting position 21, the second circuit board 2 is arranged along a third direction, and the second direction intersects with the third direction.

[0068] In the embodiment, the first circuit board 1 is arranged along a second direction, the mounting part 11 is arranged along the second direction and towards the mounting position 21, and the second circuit board 2 is arranged along a third direction. Wherein the second direction is the width direction of the first circuit board 1, and the third direction is the length direction of the first circuit board 1. By limiting the mounting direction of the first circuit board 1 and the second circuit board 2, the first circuit board 1 and the second circuit board 2 are prevented from being arranged and mounted in the same direction, the related structure of the circuit board connecting device 100 is reasonably arranged, and the volume of the circuit board connecting device 100 is compressed in the second direction.

[0069] To improve the connection strength of the first circuit board 1 and the second circuit board 2, referring to Figure 6 and Figure 7 In an embodiment of the present application, the mounting part 11 and the mounting position 21 are respectively provided with a plurality of mounting parts 11 and a plurality of mounting positions 21.

[0070] It can be understood that, as Figure 5As shown in the prior art, in the products with higher safety requirements, especially in the multi-pin circuit board, the first signal pin and the first power pin of the prior PCB belong to the first voltage level, the second signal pin and the second power pin belong to the second voltage level, and sufficient safety distance needs to be met between the two voltage levels. That is, according to the pin mode of the prior PCB, at least two pins are needed to meet the safety requirements. Four pins will occupy too much area of the PCB, so that the size of the PCB is too large and is not convenient for assembly. In view of this situation, as shown in Figure 6 and Figure 7 In the embodiment, the signal connection part 111 and the power connection part 112 of the same voltage level are respectively processed on both sides of the mounting part 11, so that two mounting parts 11 can meet the safety requirements. Compared with the prior art of arranging four pins on the PCB, the number of pins is reduced, the layout of the first circuit board 1 is more reasonable, the size of the first circuit board 1 is reduced, and the power density of the product is improved.

[0071] Referring to Figure 6 and Figure 7 In an embodiment of the utility model, a plurality of mounting parts 11 are arranged on the first edge part 121 and are arranged at intervals along the third direction.

[0072] A plurality of mounting parts 11 are arranged at intervals along the third direction.

[0073] In the embodiment, the volume of the circuit board connecting device 100 is reduced by reasonably arranging the plurality of mounting parts 11 and the plurality of mounting parts 21.

[0074] Referring to Figure 6 and Figure 7 In an embodiment of the utility model, a plurality of mounting parts 11 are arranged on the first edge part 121 and are arranged at intervals along the third direction.

[0075] In the embodiment, the volume of the circuit board connecting device 100 is reduced by reasonably arranging the plurality of mounting parts 11 and the plurality of mounting parts 21.

[0076] The utility model also provides a vehicle-mounted charging machine, the vehicle-mounted charging machine includes circuit board connecting device, the specific structure of the circuit board connecting device refers to the above-mentioned embodiment, because the vehicle-mounted charging machine adopts all the technical schemes of the above-mentioned embodiments, at least has all the beneficial effects brought by the technical scheme of the above-mentioned embodiment, here will not repeat.

[0077] The utility model also proposes a kind of vehicle-mounted DC / DC converter, the vehicle-mounted DC / DC converter includes circuit board connecting device, the specific structure of the circuit board connecting device refers to above-mentioned embodiment, since the vehicle-mounted DC / DC converter of the present vehicle adopts all technical solutions of above-mentioned all embodiments, at least has all beneficial effects brought by the technical scheme of above-mentioned embodiment, here no longer elaborates one by one.

[0078] The utility model also proposes a kind of vehicle, the vehicle includes vehicle-mounted charger;And / or, vehicle-mounted DC / DC converter, the specific structure of vehicle-mounted charger and vehicle-mounted DC / DC converter refers to above-mentioned embodiment, since the vehicle of the present vehicle adopts all technical solutions of above-mentioned all embodiments, at least has all beneficial effects brought by the technical scheme of above-mentioned embodiment, here no longer elaborates one by one.

[0079] The above-mentioned is only the preferred embodiment of the utility model, and not therefore limit the patent range of the utility model, is equivalent to the structure transformation made in the inventive concept of the utility model using the utility model specification and drawing contents, or direct / indirectly applied in other related technical fields all include in the patent protection range of the utility model.

Claims

1. A circuit board connecting device, characterized by comprising: include: A first circuit board includes a mounting component, the mounting component having a signal connection portion and a power connection portion, the signal connection portion being used to transmit control signals, and the power connection portion being used to transmit power signals; The second circuit board has a mounting position, a first connecting part, and a second connecting part. When the mounting part is installed in the mounting position, the first connecting part is in contact with the signal connecting part, and the second connecting part is in contact with the power connecting part.

2. The circuit board connecting device of claim 1, wherein, The first circuit board is provided with a signal module, which is electrically connected to the signal connection part. The signal module includes at least one of an enable module, a drive module, and a power supply module. And / or, the first circuit board is provided with a power circuit, the power circuit is electrically connected to the power connection part, and the power circuit includes at least one of a boost circuit, a buck circuit, and a buck-boost circuit.

3. The circuit board connecting device of claim 1, wherein, The mounting position is a slot provided on the second circuit board, and the mounting component is plugged into and adapted to the slot. The first connecting part and the second connecting part are provided in the slot.

4. The circuit board connecting device of claim 3, wherein The mounting component is a pin, which includes a pin body, a signal connector, and a power connector. The signal connector and the power connector are respectively disposed on the pin body. The signal connector is a signal connection part, and the power connector is a power connection part. The first connection part is a signal pad disposed on the inner wall of the slot, and the second connection part is a power pad disposed on the inner wall of the slot.

5. The circuit board connecting device of claim 4, wherein, The signal pads are soldered to the signal connector pieces; And / or, the power pads are soldered to the power connectors.

6. The circuit board connecting device of claim 4, wherein, The signal connector and the power connector are located on different sides of the pin body.

7. The circuit board connecting device of claim 6, wherein, The pin body has a first side and a second side opposite to each other, one of the signal connector and the power connector is located on the first side, and the other of the signal connector and the power connector is located on the second side.

8. The circuit board connecting device of claim 1, wherein, The first circuit board further includes a first board body, the first board body having a first edge portion, and the mounting member being disposed on the first edge portion.

9. The circuit board connecting device of claim 8, wherein, The first circuit board extends along a second direction, the mounting member is disposed toward the mounting position, and the second circuit board extends along a third direction, the second direction intersecting with the third direction.

10. The circuit board connecting device of claim 8, wherein, Multiple mounting components and mounting positions are provided, and the multiple mounting components are installed one-to-one in the multiple mounting positions.

11. The circuit board connecting device of claim 10, wherein, Multiple mounting components are disposed on the first edge portion and spaced apart along a third direction; The multiple mounting positions are spaced apart along a third direction.

12. The circuit board connecting device of claim 11, wherein, The multiple mounting positions are located on the same side of the second circuit board.

13. An on-board charger, comprising: Includes the circuit board connection device as described in any one of claims 1 to 10.

14. An on-board DC / DC converter, characterized in that Includes the circuit board connection device as described in any one of claims 1 to 10.

15. A vehicle characterized by comprising: Includes the on-board charger as described in claim 13; and / or the on-board DC / DC converter as described in claim 14.

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