BDU integrated structure

Abstract

The utility model discloses a BDU integrated structure, relates to the field of BDU processing design, and is used for solving the problem that a fast-charging BDU and a common BDU cannot be universally used. The BDU integrated structure comprises a BDU body, a first relay, a second relay, a third relay, a fourth relay, a first copper bar, a second copper bar, a third copper bar, a fourth copper bar, a fifth copper bar and a sixth copper bar. The BDU body is sequentially provided with a first relay, a second relay, a third relay and a fourth relay along the length direction of the BDU body; the second relay and the fourth relay are detachably arranged on the BDU body; the first copper bar is electrically connected with the first relay; the second copper bar is electrically connected with the second relay; the third copper bar is electrically connected with the third relay; the fourth copper bar is electrically connected with the fourth relay; the fifth copper bar is electrically connected with the first copper bar and the second copper bar; the sixth copper bar is electrically connected with the third copper bar and the fourth copper bar; the second copper bar is detachably connected with the fifth copper bar, and the fourth copper bar is detachably connected with the sixth copper bar.

Description

Technical Field

[0001] This application relates to the field of BDU processing design, and particularly to a BDU integrated structure. Background Art

[0002] The BDU mold is used to produce components related to the BDU (Battery Disconnect Unit). The BDU mold has relatively high requirements for size, quality, precision, and internal space design. Therefore, the BDU mold is usually formed in one step to ensure its working safety.

[0003] According to different vehicle charging and discharging requirements, the BDU is divided into a fast-charging type and a normal type. The fast-charging BDU usually uses more relays or larger-sized relays and is equipped with corresponding fast-charging programs, while the normal BDU only needs to use relays to connect the copper bars without other designs.

[0004] Since the fast-charging BDU and the normal BDU are not interchangeable, each type of BDU needs to be designed separately, resulting in high mold manufacturing costs and increased production costs. Utility Model Content

[0005] This application provides a BDU integrated structure to solve the problem that the fast-charging BDU and the normal BDU are not interchangeable.

[0006] This application provides a BDU integrated structure, including a BDU body, a first relay, a second relay, a third relay, a fourth relay, a first copper bar, a second copper bar, a third copper bar, a fourth copper bar, a fifth copper bar, and a sixth copper bar; a first relay installation area, a second relay installation area, a detection module installation area, a third relay installation area, and a fourth relay installation area are provided on the BDU body; the first relay is arranged in the first relay installation area; the second relay is detachably arranged in the second relay installation area; the third relay is arranged in the third relay installation area; the fourth relay is detachably arranged in the fourth relay installation area; the first copper bar is electrically connected to the first relay; the second copper bar is electrically connected to the second relay; the third copper bar is electrically connected to the third relay; the fourth copper bar is electrically connected to the fourth relay; the fifth copper bar is electrically connected to the first copper bar and the second copper bar; the sixth copper bar is electrically connected to the third copper bar and the fourth copper bar; wherein, the second copper bar is detachably connected to the fifth copper bar, and the fourth copper bar is detachably connected to the sixth copper bar.

[0007] In this application, the first relay and the fourth relay are connected to the BDU body. The first copper bar, the fifth copper bar and the first relay are fixedly connected, and the third copper bar, the sixth copper bar and the third relay are connected, enabling the first relay and the third relay to form an input relay and an output relay, and cooperating with the corresponding copper bars to achieve circuit connection; the second relay and the fourth relay are both detachably connected, and the corresponding second copper bar and the fourth copper bar are both detachably connected to the corresponding relays. At this time, the second relay and the fourth relay can be installed as needed, and the corresponding copper bars can be installed and removed, so as to flexibly meet the requirement of coexistence of the normal mode and the fast charging mode of the BDU body according to needs.

[0008] This method can install the structure according to requirements during installation, and at the same time, the corresponding installation components can be replaced when needed, realizing the increase and decrease of the fast charging function of the BDU integrated structure to meet more design and production requirements.

[0009] Compared with the existing scheme, this scheme avoids the complicated process of designing a new BDU integrated structure brought about by later design changes, realizes multiple target requirements with one BDU integrated structure, thereby reducing the production design difficulty and achieving the generalization and coexistence of the fast charging BDU and the ordinary BDU.

[0010] In some embodiments of this application, a plurality of mounting holes are provided on the BDU body, and the plurality of mounting holes are distributed in the first relay mounting area, the second relay mounting area, the third relay mounting area and the fourth relay mounting area. The BDU integrated structure further includes fasteners, and each mounting hole is provided with a fastener. The plurality of mounting holes and fasteners are respectively used to fixedly connect the first relay to the BDU body, detachably connect the second relay to the BDU body, fixedly connect the third relay to the BDU body, and detachably connect the fourth relay to the BDU body.

[0011] The mounting holes and fasteners provided on the BDU body can fixedly connect the first relay, the second relay, the third relay and the fourth relay to the BDU body, thus ensuring the stability of the overall operation of the BDU integrated structure; at the same time, this connection scheme can make the first relay and the second relay independent of each other, and the third relay and the fourth relay independent of each other. When it is necessary to convert between the fast charging BDU and the ordinary BDU, only the second relay, the fourth relay and the corresponding fasteners need to be disassembled to achieve the conversion.

[0012] In some embodiments of this application, the number of mounting holes at the first relay mounting area, the second relay mounting area, the third relay mounting area and the fourth relay mounting area is at least two.

[0013] At least two mounting holes can fix the first relay, the second relay, the third relay, and the fourth relay at the first relay mounting area, the second relay mounting area, the third relay mounting area, and the fourth relay mounting area respectively, preventing one or more of the first relay, the second relay, the third relay, and the fourth relay from shifting in position during operation and ensuring the working safety of the BDU integrated structure.

[0014] In some embodiments of the present application, the fastener is a bolt, the mounting hole is a threaded hole, and the bolt is threadedly connected to the threaded hole. The cooperation of the bolt and the threaded hole is simple to install, convenient to manufacture, and has good connection stability.

[0015] In some embodiments of the present application, the BDU integrated structure further includes a monitoring component and a detection wire harness. The monitoring component is arranged in the detection module mounting area, and the detection wire harness is arranged between the first relay, the second relay, the third relay, the fourth relay and the monitoring component to electrically connect the first relay, the second relay, the third relay, the fourth relay and the monitoring component.

[0016] The monitoring component can detect the current data on the first relay, the second relay, the third relay, and the fourth relay to facilitate controlling the circuit and collecting circuit data to ensure driving safety.

[0017] In some embodiments of the present application, the monitoring component has a first connection port, a second connection port, a third connection port, and a fourth connection port; the detection wire harness includes a first wire harness, a second wire harness, a third wire harness, and a fourth wire harness. One end of the first wire harness is electrically connected to the first relay, and the other end of the first wire harness is connected to the first connection port. One end of the second wire harness is electrically connected to the second relay, and the other end of the second wire harness is connected to the second connection port. One end of the third wire harness is electrically connected to the third relay, and the other end of the third wire harness is connected to the third connection port. One end of the fourth wire harness is electrically connected to the fourth relay, and the other end of the fourth wire harness is connected to the fourth connection port.

[0018] The first relay, the second relay, the third relay, the fourth relay and the monitoring component are independently connected through the first wire harness, the second wire harness, the third wire harness, and the fourth wire harness respectively, which can make the disassembly and assembly of the circuit more convenient when the relay is disassembled and assembled, and avoid the mutual influence of the circuits.

[0019] In some embodiments of the present application, the first connection port, the second connection port, the third connection port, and the fourth connection port are all plug-in ports, and one end of each of the first wire harness, the second wire harness, the third wire harness, and the fourth wire harness is a plug, and the plug is plugged into the plug-in port.

[0020] Plugging the plug connector into the plug port enables easy disconnection and connection between the first relay, the second relay, the third relay, the fourth relay, and the monitoring component, facilitating the quick conversion between the fast charging BDU and the ordinary BDU.

[0021] In some embodiments of the present application, one end of the first copper bar, the second copper bar, the third copper bar, and the fourth copper bar is provided with a first connection hole, and the first connection hole is used to fixedly connect the first copper bar, the second copper bar, the third copper bar, and the fourth copper bar to the corresponding first relay, second relay, third relay, and fourth relay respectively.

[0022] Terminals or terminal bolts are often provided on the relay. Through the first connection hole, it is more convenient and stable to connect the first copper bar, the second copper bar, the third copper bar, and the fourth copper bar to the first relay, the second relay, the third relay, and the fourth relay respectively.

[0023] In some embodiments of the present application, the other end of the first copper bar, the second copper bar, the third copper bar, and the fourth copper bar is provided with a second connection hole, and at least two third connection holes are provided on the fifth copper bar and the sixth copper bar. Each second connection hole corresponds to an independent third connection hole; the BDU integrated structure further includes a connector, and a plurality of connectors are provided on the second connection hole and the corresponding third connection hole to fixedly connect the first copper bar to the fifth copper bar, the second copper bar to the fifth copper bar, the third copper bar to the sixth copper bar, and the fourth copper bar to the sixth copper bar.

[0024] The second connection hole, the third connection hole, and the connector can make the connection between the first copper bar, the second copper bar and the fifth copper bar stable, and make the connection between the third copper bar, the fourth copper bar and the sixth copper bar stable; at the same time, the first copper bar, the second copper bar and the fifth copper bar are independently connected, and the third copper bar, the fourth copper bar and the sixth copper bar are independently connected. When removing or installing the third copper bar and the second copper bar, it will not affect the connection between the first copper bar and the fifth copper bar, and the connection between the fourth copper bar and the sixth copper bar, which helps the quick conversion between the fast charging BDU and the ordinary BDU. Description of the Drawings

[0025] The drawings are used to provide a further understanding of the technical solutions of the present invention, and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solutions of the present invention, and do not constitute a limitation to the technical solutions of the present invention.

[0026] Figure 1 It is a three-dimensional schematic diagram of a BDU integrated structure provided by an embodiment of the present application.

[0027] Figure 2 It is a top view schematic diagram of a BDU integrated structure provided by an embodiment of the present application.

[0028] Figure 3 The front view schematic diagram of a BDU integrated structure provided by an embodiment of the present application.

[0029] Reference numerals: 1 - BDU body; 11 - First relay installation area; 12 - Second relay installation area; 13 - Detection module installation area; 14 - Third relay installation area; 15 - Fourth relay installation area; 16 - Installation hole; 17 - Fastener; 21 - First relay; 22 - Second relay; 23 - Third relay; 24 - Fourth relay; 31 - First copper bar; 32 - Second copper bar; 33 - Third copper bar; 34 - Fourth copper bar; 35 - Fifth copper bar; 36 - Sixth copper bar; 4 - Monitoring element; 41 - Detection wire harness; 42 - Plug-in port; 43 - Plug; 51 - First connection hole; 52 - Second connection hole. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with 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 of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0031] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0032] The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise stated, the meaning of "a plurality" is two or more.

[0033] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations. In addition, when describing pipelines, the terms "connected" and "connected" used in the present application have the meaning of conducting. The specific meaning needs to be understood in combination with the context.

[0034] In the embodiments of the present application, words such as "exemplary" or "for example" are used to represent examples, illustrations or explanations. Any embodiment or design solution described as "exemplary" or "for example" in the embodiments of the present application should not be construed as being more preferred or having more advantages than other embodiments or design solutions. Rather, the use of words such as "exemplary" or "for example" is intended to present relevant concepts in a specific manner.

[0035] The BDU mold is a mold used to produce components related to the BDU (Battery Disconnect Unit). The BDU mold has relatively high requirements for size, quality, precision, and internal space design. Therefore, the BDU mold is usually formed in one step to ensure its working safety.

[0036] According to different vehicle charging and discharging requirements, the BDU is divided into a fast-charging type and a normal type. The fast-charging type BDU usually uses more relays or larger-sized relays and is equipped with corresponding fast-charging programs, while the normal BDU requires no other design and only needs to use relays to connect the copper bars.

[0037] Since the fast-charging BDU and the normal BDU are not interchangeable, each type of BDU needs to be designed separately, resulting in high mold manufacturing costs and increased production costs.

[0038] For this reason, please refer to Figure 1 , the present application provides a BDU integrated structure, including a BDU body 1, a first relay 21, a second relay 22, a third relay 23, a fourth relay 24, a first copper bar 31, a second copper bar 32, a third copper bar 33, a fourth copper bar 34, a fifth copper bar 35, and a sixth copper bar 36.

[0039] Please refer to Figure 1 , on the BDU body 1, there are provided a first relay installation area 11, a second relay installation area 12, a detection module installation area 13, a third relay installation area 14, and a fourth relay installation area 15. The first relay installation area 11, the second relay installation area 12, the detection module installation area 13, the third relay installation area 14, and the fourth relay installation area 15 can be only the space of the BDU body 1, without setting any features separately, and are only distinguished by installation elements.

[0040] Please refer to Figure 1, the first relay 21 is arranged in the first relay installation area 11; the second relay 22 is detachably arranged in the second relay installation area 12; the third relay 23 is arranged in the third relay installation area 14; the fourth relay 24 is detachably arranged in the fourth relay installation area 15. The detachable connection between the second relay 22 and the third relay 23 can be realized by bolt connection, or by other detachable connection methods, such as snap connection, spline connection or clamp connection.

[0041] Please refer to Figure 1 , the first copper bar 31 is electrically connected to the first relay 21; the second copper bar 32 is electrically connected to the second relay 22; the third copper bar 33 is electrically connected to the third relay 23; the fourth copper bar 34 is electrically connected to the fourth relay 24; the fifth copper bar 35 is electrically connected to the first copper bar 31 and is also electrically connected to the second copper bar 32; the sixth copper bar 36 is electrically connected to the third copper bar 33 and is also electrically connected to the fourth copper bar 34.

[0042] Please refer to Figure 1 , wherein, the second copper bar 32 and the fifth copper bar 35 are detachably connected, and the fourth copper bar 34 and the sixth copper bar 36 are detachably connected. Power needs to be conducted between the second copper bar 32 and the fifth copper bar 35, and between the fourth copper bar 34 and the sixth copper bar 36, and detachable connection is also required. Therefore, any one of snap connection, key connection or screw connection can be used.

[0043] Please refer to Figure 1 , in the present application, the first relay 21 and the third relay 23 are connected to the BDU body 1. The first copper bar 31, the fifth copper bar 35 and the first relay 21 are fixedly connected, and the third copper bar 33, the sixth copper bar 36 and the third relay 23 are connected, so that the first relay 21 and the third relay 23 can form an input relay and an output relay, and cooperate with the corresponding copper bars to realize circuit connection; the second relay 22 and the fourth relay 24 are both detachably connected, and the corresponding second copper bar 32 and the fourth copper bar 34 are detachably connected to the corresponding relays. At this time, the second relay 22 and the fourth relay 24 can be installed according to needs, and the corresponding copper bars can be installed and removed, so as to flexibly realize the coexistence of the normal mode and the fast charge mode of the BDU body 1 according to needs. This method can install the structure according to requirements during installation, and at the same time can replace the corresponding installation components when needed, realizing the increase and decrease of the fast charge function of the BDU integrated structure to meet more design and production requirements.

[0044] Please refer to Figure 1 , compared with the existing scheme, this scheme avoids the complicated process of designing a new BDU integrated structure caused by later design changes, realizes multiple target requirements with one BDU integrated structure, thereby reducing the production design difficulty, and realizing the generality and coexistence of the fast charge BDU and the ordinary BDU.

[0045] Please refer to Figure 1 , in some examples, the first relay 21 and the third relay 23 can be low-voltage relays. By installing the first relay 21 and the third relay 23, the BDU integrated structure can form a common non-fast-charging BDU integrated structure; the second relay 22 and the fourth relay 24 can be high-voltage relays. By adding the second relay 22 and the fourth relay 24 on the basis of the common BDU integrated structure, the common BDU can be converted into a fast-charging BDU to achieve the purpose of fast charging.

[0046] Please refer to Figure 1 , at this time, the first relay 21 and the second relay 22 can be input relays, the third relay 23 and the fourth relay 24 can be output relays, the first copper bar 31, the second copper bar 32, and the fifth copper bar 35 can be input copper bars, and the third copper bar 33, the fourth copper bar 34, and the sixth copper bar 36 can be output copper bars, so as to realize the connection of the circuit.

[0047] Please refer to Figure 1 , at the same time, the first copper bar 31 and the third copper bar 33 can be low-voltage copper bars, the second copper bar 32 and the fourth copper bar 34 can be high-voltage copper bars, and the fifth copper bar 35 and the sixth copper bar 36 can be high-voltage line copper bars to connect electrical appliances or batteries to connect the circuit.

[0048] Or, it can also be in other ways. For example, the first relay 21 and the second relay 22 can be output relays, and the third relay 23 and the fourth relay 24 can be input relays, and the function of the BDU integrated module can also be realized.

[0049] Exemplarily, the above-mentioned first relay 21, second relay 22, third relay 23, and fourth relay 24 do not represent the installation models and installation sequences of the relays, and at the same time do not represent that the four relays are completely different relays. No matter what model the above relays adopt, only need to set them in the above installation method to realize the versatility of the BDU integrated structure.

[0050] Please refer to Figure 1 , in some other examples, the first relay 21, the second relay 22, the third relay 23, and the fourth relay 24 can be exactly the same, and their input and output can be set by wiring. At the same time, the number of circuits can be increased by adding relays, so that the BDU is converted from a common BDU to a fast-charging BDU. At the same time, the functions of the first copper bar 31, the second copper bar 32, the third copper bar 33, the fourth copper bar 34, the fifth copper bar 35, and the sixth copper bar 36 can be exactly the same, all for conducting electric energy, and their output and input, high-voltage and low-voltage attributes can be set according to the position and specific usage conditions to meet the usage requirements.

[0051] Please refer to Figure 1 , in some other examples, in order to meet more functions of the BDU integrated structure, a fifth relay and a sixth relay can also be provided on the BDU body 1 to achieve more functions and higher current transmission speed.

[0052] Please refer to Figure 1 , in some examples, the first relay installation area 11, the second relay installation area 12, the detection module installation area 13, the third relay installation area 14, and the fourth relay installation area 15 can be arranged in sequence along the length direction of one side wall of the BDU body 1, or can be arranged in disorder along the length direction, as long as the first relay 21, the second relay 22, the third relay 23, and the fourth relay 24 can meet the above installation relationship.

[0053] Or the first relay installation area 11, the second relay installation area 12, the detection module installation area 13, the third relay installation area 14, and the fourth relay installation area 15 can also be in other arrangement ways. For example, the first relay installation area 11 and the second relay installation area 12 are distributed side by side along the width direction, the third relay installation area 14 and the fourth relay installation area 15 are distributed side by side along the width direction, and the detection module installation area 13 is arranged in the middle of one side surface of the BDU body 1. Similarly, the distribution of the first relay installation area 11, the second relay installation area 12, the detection module installation area 13, the third relay installation area 14, and the fourth relay installation area 15 can be realized, and the conversion between the ordinary type and the fast charging type of the BDU can be achieved through the above installation relationship.

[0054] Please refer to Figure 1 , in some examples, a plurality of mounting holes 16 are provided on the BDU body 1, and the plurality of mounting holes 16 are distributed in the first relay installation area 11, the second relay installation area 12, the third relay installation area 14, and the fourth relay installation area 15. The BDU integrated structure further includes fasteners 17, and each mounting hole 16 is provided with a fastener 17. The plurality of mounting holes 16 and the fasteners 17 are respectively used to fixedly connect the first relay 21 to the BDU body 1, detachably connect the second relay 22 to the BDU body 1, fixedly connect the third relay 23 to the BDU body 1, and detachably connect the fourth relay 24 to the BDU body 1.

[0055] Please refer to Figure 1, the mounting holes 16 and fasteners 17 provided on the BDU body 1 enable the first relay 21, the second relay 22, the third relay 23, and the fourth relay 24 to be fixedly connected to the BDU body 1, thus ensuring the stability of the overall operation of the BDU integrated structure. At the same time, this connection scheme enables the first relay 21 and the second relay 22 to be independent of each other, and the third relay 23 and the fourth relay 24 to be independent of each other. When it is necessary to convert between a fast-charging BDU and a normal BDU, only the second relay 22, the fourth relay 24, and the corresponding fasteners 17 need to be disassembled to achieve the conversion.

[0056] Please refer to Figure 1 , the number of fasteners 17 can correspond one-to-one with the number of mounting holes 16, or the number of fasteners 17 can be less than the number of mounting holes 16, as long as the first relay 21, the second relay 22, the third relay 23, and the fourth relay 24 can be fixedly connected to the BDU body 1 through the fasteners 17.

[0057] In some examples, the number of mounting holes 16 at the first relay mounting area 11, the second relay mounting area 12, the third relay mounting area 14, and the fourth relay mounting area 15 is at least two.

[0058] At least two mounting holes 16 can fix the first relay 21, the second relay 22, the third relay 23, and the fourth relay 24 at the first relay mounting area 11, the second relay mounting area 12, the third relay mounting area 14, and the fourth relay mounting area 15 respectively, preventing one or more of the first relay 21, the second relay 22, the third relay 23, and the fourth relay 24 from shifting in position during operation and ensuring the working safety of the BDU integrated structure.

[0059] Exemplarily, the number of mounting holes 16 can be two, or it can also be three or four. The number of mounting holes 16 used for each relay installation can be two, and the extra mounting holes 16 can be flexibly used when installing different models of relays.

[0060] In some examples, the fastener 17 is a bolt and the mounting hole 16 is a threaded hole, and the bolt is threadedly connected to the threaded hole. The cooperation between the bolt and the threaded hole is simple to install and convenient to manufacture, ensuring good connection stability between the first relay 21 and the BDU body 1.

[0061] The fastener 17 can also be a threaded post and a nut, which can also meet the need for connection and fixation. Alternatively, the fastener 17 can also be other structures, such as a snap-fit structure or a riveting structure, which can also achieve the fixed connection between the first relay 21 and the BDU body 1.

[0062] Please refer toFigure 1 In some examples, the BDU integration structure further includes a monitoring component 4 and a detection wire harness 41. The monitoring component 4 is disposed in the detection module installation area 13, and the detection wire harness 41 is disposed between the first relay 21, the second relay 22, the third relay 23, the fourth relay 24 and the monitoring component 4, and electrically connects the first relay 21, the second relay 22, the third relay 23, the fourth relay 24 and the monitoring component 4.

[0063] The monitoring component 4 can detect the current data on the first relay 21, the second relay 22, the third relay 23, and the fourth relay 24, so as to control the circuit and collect circuit data to ensure driving safety.

[0064] In some examples, the monitoring component 4 is a conventional structure in the vehicle BDU integration structure for collecting circuit information. At the same time, the connection between the monitoring component 4 and the BDU body 1 is also a conventional connection, which will not be elaborated here.

[0065] The detection wire harness 41 is also a conventional data transmission wire harness, which is mostly a data wire and will not be described in detail here.

[0066] Please refer to Figure 1 In some examples, the monitoring component 4 has a first connection port, a second connection port, a third connection port, and a fourth connection port; the detection wire harness 41 includes a first wire harness, a second wire harness, a third wire harness, and a fourth wire harness. One end of the first wire harness is electrically connected to the first relay 21, and the other end of the first wire harness is connected to the first connection port. One end of the second wire harness is electrically connected to the second relay 22, and the other end of the second wire harness is connected to the second connection port. One end of the third wire harness is electrically connected to the third relay 23, and the other end of the third wire harness is connected to the third connection port. One end of the fourth wire harness is electrically connected to the fourth relay 24, and the other end of the fourth wire harness is connected to the fourth connection port.

[0067] The first relay 21, the second relay 22, the third relay 23, the fourth relay 24 and the monitoring component 4 are independently connected through the first wire harness, the second wire harness, the third wire harness and the fourth wire harness respectively, which can make the disassembly and assembly of the circuit more convenient when the relay is disassembled and assembled, and avoid the mutual influence of the circuits.

[0068] Please refer to Figure 1 In some examples, the first connection port, the second connection port, the third connection port, and the fourth connection port can be the same port, or can be partially the same or completely different ports; the first wire harness, the second wire harness, the third wire harness, and the fourth wire harness can be the same wire harness, or can be partially the same or completely different; the first wire harness, the second wire harness, the third wire harness, and the fourth wire harness are all used to transmit circuit on / off information and current data, so as to facilitate the statistical collection of data and further ensure the safety of the vehicle.

[0069] Please refer to Figure 1 , in some examples, the first connection port, the second connection port, the third connection port, and the fourth connection port are all plug-in ports 42, and one end of the first wire harness, the second wire harness, the third wire harness, and the fourth wire harness is a plug 43, and the plug 43 is plugged into the plug-in port 42.

[0070] Please refer to Figure 1 , the plug 43 being plugged into the plug-in port 42 can facilitate the disconnection and connection of the first relay 21, the second relay 22, the third relay 23, the fourth relay 24, and the monitoring element 4, and facilitate the rapid conversion between the fast charging BDU and the ordinary BDU.

[0071] In some examples, the plug 43 and the plug-in port 42 are conventional structures in circuit connection. Here, the first connection port, the second connection port, the third connection port, the fourth connection port are separately and independently connected to the first wire harness, the second wire harness, the third wire harness, and the fourth wire harness, which can facilitate the disconnection and connection of the corresponding circuits when the relay is disassembled and assembled.

[0072] Please refer to Figure 2 , in some examples, a first connection hole 51 is provided at one end of the first copper bar 31, the second copper bar 32, the third copper bar 33, and the fourth copper bar 34. The first connection hole 51 is used to fixedly connect the first copper bar 31, the second copper bar 32, the third copper bar 33, and the fourth copper bar 34 to the corresponding first relay 21, second relay 22, third relay 23, and fourth relay 24 respectively.

[0073] Please refer to Figure 2 , the relay is often provided with a terminal or a connection bolt. Through the first connection hole 51, it can be more convenient and stable to connect the first copper bar 31, the second copper bar 32, the third copper bar 33, and the fourth copper bar 34 to the first relay 21, the second relay 22, the third relay 23, and the fourth relay 24 respectively.

[0074] Please refer to Figure 2 , in some examples, the first connection hole 51 is used for stable connection with the relay. The relay is usually provided with a terminal or a connection hole and a fastening bolt. At this time, the first connection hole 51 can be set as a round hole, and one end of the first copper bar 31, the second copper bar 32, the third copper bar 33, and the fourth copper bar 34 can be sleeved on the terminals of the corresponding first relay 21, second relay 22, third relay 23, and fourth relay 24 to realize the fixation of the copper bar and the corresponding relay.

[0075] Please refer to Figure 2 and Figure 3, in some examples, the copper busbar can have a spatial structure, such as being formed by bending multiple sections of plates. At this time, it is convenient for the installation of the copper busbar and the relay and the design of the position of the copper busbar. The copper busbar here can be any one or more of the first copper busbar 31, the second copper busbar 32, the third copper busbar 33, the fourth copper busbar 34, the fifth copper busbar 35 or the sixth copper busbar 36.

[0076] Please refer to Figure 2 , in some examples, the other ends of the first copper busbar 31, the second copper busbar 32, the third copper busbar 33, and the fourth copper busbar 34 are all provided with second connection holes 52, and at least two third connection holes are provided on both the fifth copper busbar 35 and the sixth copper busbar 36. Each second connection hole 52 corresponds to an independent third connection hole; the BDU integrated structure further includes connecting pieces, and a plurality of connecting pieces are provided on the second connection holes 52 and the corresponding third connection holes, so that the first copper busbar 31 is fixedly connected to the fifth copper busbar 35, the second copper busbar 32 is fixedly connected to the fifth copper busbar 35, the third copper busbar 33 is fixedly connected to the sixth copper busbar 36, and the fourth copper busbar 34 is fixedly connected to the sixth copper busbar 36.

[0077] The second connection holes 52, the third connection holes and the connecting pieces can make the connection between the first copper busbar 31, the second copper busbar 32 and the fifth copper busbar 35 stable, and make the connection between the third copper busbar 33, the fourth copper busbar 34 and the sixth copper busbar 36 stable; at the same time, the first copper busbar 31, the second copper busbar 32 and the fifth copper busbar 35 are independently connected, and the third copper busbar 33, the fourth copper busbar 34 and the sixth copper busbar 36 are independently connected. When removing or installing the third copper busbar and the second copper busbar 32, it will not affect the connection between the first copper busbar 31 and the fifth copper busbar 35, and the connection between the fourth copper busbar 34 and the sixth copper busbar 36, which helps the rapid conversion between the fast charging BDU and the ordinary BDU.

[0078] Please refer to Figure 2 , in some examples, two third mounting holes 16 can be provided on the fifth copper busbar 35 and the sixth copper busbar 36. The two third mounting holes 16 can be spaced apart and are correspondingly distributed with the second connection holes 52 of the corresponding first copper busbar 31, second copper busbar 32, third copper busbar 33, and fourth copper busbar 34.

[0079] Both the third mounting holes 16 and the second mounting holes 16 can be through holes, and their shapes can be circular or square. The connecting pieces can be threaded pieces, such as bolts and nuts, stud nuts, or can also be fixed connections realized by riveting or other clamping structures.

[0080] The first copper row 31, the second copper row 32, the third copper row 33, and the fourth copper row 34 after connection should at least partially overlap with the corresponding fifth copper row 35 and sixth copper row 36 to ensure stable circuit connection. In the description of this specification, specific features, structures, materials, or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0081] As described above, the above are only specific implementation manners of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A BDU integrated structure, characterized in that: include: A BDU body, wherein a first relay installation area, a second relay installation area, a detection module installation area, a third relay installation area, and a fourth relay installation area are provided on the BDU body; A first relay is arranged in the first relay installation area; A second relay, detachably disposed in the second relay installation area; A third relay is arranged in the third relay installation area; a fourth relay, detachably arranged in the fourth relay installation area; a first copper busbar, electrically connected to the first relay; a second copper busbar, electrically connected to the second relay; a third copper busbar, electrically connected to the third relay; a fourth copper busbar, electrically connected to the fourth relay; a fifth copper busbar, electrically connected to the first copper busbar and electrically connected to the second copper busbar; a sixth copper bar, electrically connected to the third copper bar, and electrically connected to the fourth copper bar; The second copper bar is detachably connected to the fifth copper bar, and the fourth copper bar is detachably connected to the sixth copper bar.

2. The BDU integrated structure according to claim 1, characterized in that: The BDU body is provided with a plurality of mounting holes, and the plurality of mounting holes are distributed in the first relay mounting area, the second relay mounting area, the third relay mounting area, and the fourth relay mounting area. The BDU integrated structure also includes a fastener, and the fastener is arranged in each of the mounting holes. The multiple mounting holes and the fasteners are respectively used to fixedly connect the first relay to the BDU body, to detachably connect the second relay to the BDU body, to fixedly connect the third relay to the BDU body, and to detachably connect the fourth relay to the BDU body.

3. The BDU integrated structure according to claim 2, characterized in that: The number of the mounting holes at the first relay mounting area, the second relay mounting area, the third relay mounting area, and the fourth relay mounting area is at least two.

4. The BDU integrated structure according to claim 2, characterized in that: The fastener is a bolt, the mounting hole is a threaded hole, and the bolt is threadedly connected to the threaded hole.

5. The BDU integrated structure according to any one of claims 1 to 4, characterized in that: The BDU integrated structure also includes a monitoring element and a detection harness. The monitoring element is arranged in the detection module installation area. The detection harness is arranged between the first relay, the second relay, the third relay, the fourth relay and the monitoring element, and electrically connects the first relay, the second relay, the third relay, the fourth relay and the monitoring element.

6. The BDU integrated structure according to claim 5, characterized in that: The monitoring element has a first connection port, a second connection port, a third connection port, and a fourth connection port; The detection harness comprises a first harness, a second harness, a third harness and a fourth harness, One end of the first wiring harness is electrically connected to the first relay, and the other end of the first wiring harness is connected to the first connection port. One end of the second wiring harness is electrically connected to the second relay, and the other end of the second wiring harness is connected to the second connection port. One end of the third wiring harness is electrically connected to the third relay, and the other end of the third wiring harness is connected to the third connection port. One end of the fourth wiring harness is electrically connected to the fourth relay, and the other end of the fourth wiring harness is connected to the fourth connection port.

7. The BDU integrated structure according to claim 6, characterized in that: The first connection port, the second connection port, the third connection port, and the fourth connection port are all plug-in ports, and one end of the first wiring harness, the second wiring harness, the third wiring harness, and the fourth wiring harness are all plug connectors, and the plug connectors are plugged into the plug ports.

8. The BDU integrated structure according to claim 1, characterized in that: One end of the first copper bar, the second copper bar, the third copper bar, and the fourth copper bar is provided with a first connecting hole, and the first connecting hole is used to fix the first copper bar, the second copper bar, the third copper bar, and the fourth copper bar with the corresponding first relay, the second relay, the third relay, and the fourth relay respectively.

9. The BDU integrated structure according to claim 8, characterized in that: The other ends of the first copper bar, the second copper bar, the third copper bar and the fourth copper bar are all provided with second connection holes, and the fifth copper bar and the sixth copper bar are each provided with at least two third connection holes, and each of the second connection holes corresponds to an independent third connection hole; The BDU integrated structure also includes a connector, which is provided in plurality. The plurality of connectors are provided on the second connecting hole and the corresponding third connecting hole so that the first copper bar is fixedly connected to the fifth copper bar, the second copper bar is fixedly connected to the fifth copper bar, the third copper bar is fixedly connected to the sixth copper bar, and the fourth copper bar is fixedly connected to the sixth copper bar.

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