Integrated BDU controller

Abstract

The utility model provides an integrated BDU controller, which comprises a bottom shell, an upper cover, an external port, a protective piece and a connecting assembly, and is characterized in that the upper cover is detachably connected to the bottom shell; the external port is arranged on the bottom shell and is arranged at the edge of the bottom shell; the upper cover is provided with a window, and the window corresponds to the external port in position. The protection piece is arranged in the window and can circumferentially rotate towards one side of the external port; the connecting assemblies are arranged on the protection part and the bottom shell respectively and used for separating or fixing the protection part and the upper cover, the rotatable protection part is arranged in the window corresponding to the external port, when the protection part is rotated to be buckled with the window, separation and fixing between the protection part and the upper cover are achieved through the connecting assemblies, and the purpose of convenient disassembly and assembly is achieved. And subsequent maintenance and overhaul of operators are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage batteries, in particular to an integrated BDU controller. Background Art

[0002] The BDU controller is the battery pack circuit breaker unit, which is specially designed for the battery pack and is also a type of high-voltage distribution box. It contains system main circuit contactors, pre-charge relays, current sensors and other components, and is responsible for current control and protection of the battery pack.

[0003] A BDU top cover and a BDU module with publication number CN218070932U include a cover body, on which a snap groove and a first snap are respectively provided, the snap groove and the first snap are both used to cooperate with the BDU base, the cover body includes a top wall and a skirt arranged on the periphery of the top wall, the snap groove is arranged on the skirt, the first snap is arranged on the top wall, the skirt includes a first side edge and a second side edge arranged opposite to each other, and snaps are arranged on the first side edge and the second side edge.

[0004] The BDU controller in the prior art is provided with a protective cover above the external connection terminal, but the protective cover is close to the external connection terminal and the space is small, which makes it inconvenient for operators to install and connect the external connection terminal during installation, and is not convenient for operators to install and subsequently maintain, and the disassembly and assembly efficiency is low. Utility Model Content

[0005] In view of this, the utility model proposes an integrated BDU controller, which is convenient for disassembly and assembly of the external connection terminal, convenient for operators to install and subsequently repair, and improves disassembly and assembly efficiency.

[0006] The technical solution of the utility model is implemented as follows: The utility model provides an integrated BDU controller, including a bottom shell, an upper cover, an external port, a protective member and a connection component, wherein:

[0007] The upper cover is detachably connected to the bottom shell;

[0008] The external connection port is arranged on the bottom shell and is arranged at the edge of the bottom shell;

[0009] A window is provided on the upper cover, and the window corresponds to the position of the external port;

[0010] The protective member is arranged in the window and can rotate circumferentially toward one side of the external port;

[0011] The connecting components are respectively arranged on the protective member and the bottom shell, and are used to separate or fix the protective member and the upper cover;

[0012] On the basis of the above technical solution, preferably, the connecting assembly includes a buckle and a locking tongue, wherein:

[0013] The buckle piece is fixedly arranged on the bottom shell and vertically arranged toward one side of the upper cover. The lock tongue piece has deformation capability and a square groove is opened on one side.

[0014] The locking tongue piece is fixedly arranged on the protective piece and vertically arranged toward one side of the bottom shell, and the position of the locking tongue piece corresponds to the position of the buckle piece;

[0015] The protective piece is rotated toward one side of the external port, and the locking tongue piece is pressed to make the buckle piece be locked in the square groove.

[0016] On the basis of the above technical solution, preferably, a plurality of counter-fasteners are provided on the outer side of the upper cover, and a plurality of protrusions are provided on the outer side of the bottom shell, the positions of the counter-fasteners correspond one to one with the positions of the protrusions, and the protrusions can be snap-fitted into the counter-fasteners.

[0017] On the basis of the above technical solution, preferably, it also includes a plurality of guide members, wherein the guide members are fixedly arranged on the outside of the bottom shell and arranged corresponding to the position of the locking tongue member, and the inner side wall of the guide member abuts against the outer side wall of the buckle member to play a guiding role.

[0018] On the basis of the above technical solution, preferably, the external port includes a battery positive connection terminal, a main positive connection terminal, a battery negative connection terminal and a main negative connection terminal, wherein:

[0019] The battery positive connection terminal, the main positive connection terminal, the battery negative connection terminal and the main negative connection terminal are arranged in the bottom shell, and are all arranged near the edge of the bottom shell;

[0020] The battery positive connection terminal and the battery negative connection terminal are arranged adjacent to each other on the same side, the main positive connection terminal and the main negative connection terminal are arranged adjacent to each other on the same side, and the battery positive connection terminal and the main negative connection terminal are arranged on two adjacent sides of the bottom shell.

[0021] The bottom shell is also provided with a main positive circuit and a main negative circuit, wherein two ends of the main positive circuit are electrically connected to the positive connection end of the battery and the main positive connection end respectively, and two ends of the main negative circuit are electrically connected to the negative connection end of the battery and the main negative connection end respectively.

[0022] On the basis of the above technical solution, preferably, the main positive circuit includes a fuse, a current measuring device, a main fuse, a main positive relay, a pre-charge relay and a pre-charge resistor, wherein:

[0023] The fuse, current measuring device, main fuse, main positive relay, pre-charge relay and pre-charge resistor are all arranged in the bottom shell;

[0024] The fuse is located at a side of the battery positive connection terminal away from the main positive connection terminal, and one end of the fuse is electrically connected to the battery positive connection terminal;

[0025] The current measuring device is located at a side of the fuse away from the positive connection end of the battery and is arranged in parallel with the fuse, and one end of the current measuring device is electrically connected to the other end of the fuse;

[0026] The main fuse is arranged at an edge of the bottom shell away from the main positive connection end and is arranged vertically with the fuse. One end of the main fuse is electrically connected to the other end of the current measuring element.

[0027] The main positive relay is located between the main fuse and the fuse, one end contact of the main positive relay is electrically connected to the other end of the main fuse, and the other end contact of the main positive relay is electrically connected to the main positive connection end;

[0028] The pre-charging relay is located at a side of the main fuse away from the current measuring device, and one end contact of the pre-charging relay is electrically connected to the other end of the main fuse;

[0029] The pre-charging resistor is arranged near the edge of the bottom shell and in parallel with the main fuse, and one end of the pre-charging resistor is electrically connected to the other end contact of the pre-charging relay;

[0030] The coils of the main positive relay and the pre-charge relay are both electrically connected to the battery BMS management system.

[0031] On the basis of the above technical solution, preferably, the main negative circuit includes a shunt and a main negative relay, wherein:

[0032] The shunt and the main negative relay are both arranged in the bottom shell;

[0033] The shunt is arranged on a side of the main positive relay away from the main fuse, and one end of the shunt is electrically connected to the negative connection end of the battery;

[0034] The main negative relay is located on the side of the shunt away from the negative connection terminal of the battery, and is arranged close to the edge of the bottom shell, and is arranged on the same side as the main positive connection terminal. One end contact of the main negative relay is electrically connected to the other end of the shunt, and the main negative connection terminal is electrically connected to the other end contact of the main negative relay.

[0035] On the basis of the above technical solution, preferably, the external port further includes a fast charging positive connection terminal and a fast charging negative connection terminal, wherein,

[0036] The fast-charge positive connection terminal and the fast-charge negative connection terminal are both arranged on the bottom shell, and the fast-charge positive connection terminal and the fast-charge negative connection terminal are arranged on the same side and adjacently;

[0037] A fast-charging positive relay and a fast-charging negative relay are also provided in the bottom shell, and the fast-charging positive relay and the fast-charging negative relay are both provided in the bottom shell;

[0038] The fast charge positive relay is located between the main negative relay and the pre-charge relay, one end of the contact of the fast charge positive relay is electrically connected to the other end of the main fuse, and the other end of the contact of the fast charge positive relay is electrically connected to the fast charge positive connection end;

[0039] The fast charging negative relay is located on the side of the main negative relay away from the shunt and is arranged close to the edge of the bottom shell. One end of the fast charging negative relay contact is electrically connected to the output end of the shunt, and the other end of the fast charging negative relay contact is electrically connected to the fast charging negative connection end; the coils of the fast charging positive relay and the fast charging negative relay are both electrically connected to the battery BMS management system.

[0040] On the basis of the above technical solution, preferably, the external connection port further includes a heating positive connection terminal, a heating negative connection terminal, an air conditioning control positive connection terminal and an air conditioning control negative connection terminal, wherein,

[0041] The heating positive connection terminal, the heating negative connection terminal, the air conditioning control positive connection terminal and the air conditioning control negative connection terminal are all arranged on the bottom shell and are all arranged on the same side. The heating positive connection terminal and the air conditioning control positive connection terminal are arranged correspondingly, and the heating negative connection terminal and the air conditioning control negative connection terminal are arranged correspondingly.

[0042] The heating positive connection end and the air conditioning control positive connection end are both electrically connected to the other end of the contact of the main positive relay, and the heating negative connection end and the air conditioning control negative connection end are both electrically connected to the other end of the contact of the main negative relay.

[0043] On the basis of the above technical solution, preferably, a branch circuit fuse is electrically connected between the heating positive connection terminal and the air conditioning control positive connection terminal and the other end of the contact of the main positive relay.

[0044] The integrated BDU controller of the utility model has the following beneficial effects compared with the prior art:

[0045] (1) A rotatable protective member is provided in a window corresponding to the external port. When the protective member is rotated and engaged with the window, the protective member and the upper cover are separated and fixed by a connecting assembly, thereby facilitating disassembly and assembly and facilitating subsequent maintenance and inspection by operators.

[0046] (2) The fast charging positive connection terminal and the fast charging negative connection terminal provided in the bottom shell can be connected to an external fast charging connection terminal to realize the fast charging function. In addition, the heating positive connection terminal, the heating negative connection terminal, the air conditioning control positive connection terminal and the air conditioning control negative connection terminal provided can be connected to an external heating port and an air conditioning control connection terminal respectively to realize the heating and air conditioning control functions, thereby effectively improving the integration level of the BDU controller and reducing the need for external wiring, thereby reducing the size and improving reliability and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0048] Figure 1 It is a three-dimensional diagram of an integrated BDU controller of the utility model;

[0049] Figure 2 It is a top view of an integrated BDU controller of the utility model;

[0050] Figure 3 This is an integrated BDU controller of the utility model. Figure 1 A partial enlarged schematic diagram in the middle;

[0051] Figure 4 This is an integrated BDU controller of the utility model. Figure 1 A partial enlarged schematic diagram of point B in the middle;

[0052] Figure 5 This is a three-dimensional diagram of the structure inside the bottom shell of an integrated BDU controller of the utility model;

[0053] Figure 6 This is a top view of the internal structure of the bottom shell of an integrated BDU controller of the utility model;

[0054] Figure 7 The utility model is a circuit schematic diagram of an integrated BDU controller. DETAILED DESCRIPTION

[0055] The following will be combined with the implementation of the utility model to clearly and completely describe the technical solutions in the implementation of the utility model. Obviously, the described implementation is only a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0056] like Figure 1-6As shown, an integrated BDU controller of the utility model comprises a bottom shell 1, an upper cover 2, an external port 3, a protective member 4 and a connecting assembly 5, wherein the upper cover 2 is detachably connected to the bottom shell 1; the external port 3 is arranged on the bottom shell 1 and is located at the edge of the bottom shell 1; a window 200 is opened on the upper cover 2, and the window 200 corresponds to the position of the external port 3; the protective member 4 is arranged in the window 200 and can rotate circumferentially toward one side of the external port 3; the connecting assembly 5 is separately arranged on the protective member 4 and the bottom shell 1, and is used to separate or fix the protective member 4 from the upper cover 2.

[0057] It should be noted that by setting the protective part 4 as a rotatable structure, when the operator needs to install and connect the wires, the protective part 4 is rotated to open the corresponding window 200, and then the installation and connection are carried out. The same is done when disassembling. After disassembly and assembly, the protective part 4 and the upper cover 2 can be quickly disassembled through the connecting component 5, thereby achieving the purpose of facilitating the disassembly and assembly of the external connection terminal, facilitating the subsequent maintenance and inspection of the operator, and improving the disassembly and assembly efficiency.

[0058] As a preferred embodiment, the connecting assembly 5 in this embodiment includes a latch 51 and a locking tongue 52, wherein the latch 51 is fixedly arranged on the bottom shell 1 and vertically arranged toward one side of the upper cover 2, the locking tongue 52 has deformation ability, and a square groove 510 is opened on one side; the locking tongue 52 is fixedly arranged on the protective member 4 and vertically arranged toward one side of the bottom shell 1, and the position of the locking tongue 52 corresponds to the position of the latch 51; the protective member 4 is rotated toward one side of the external port 3, pressing the locking tongue 52, so that the latch 51 is engaged in the square groove 510.

[0059] It should be noted that when the protective member 4 needs to be buckled, the protective member 4 is turned toward the side of the external port 3, wherein the side of the latch 51 away from the bottom shell 1 is arranged in an inclined surface, and when the bottom of the locking tongue member 52 contacts the inclined surface of the latch 51, since the locking tongue member 52 has the ability to deform, the angle of the locking tongue member 52 will become larger, and when the protective member 4 contacts the surface of the bottom shell 1, the square groove 510 moves to the lowest end, the locking tongue member 52 is reset, and the inner wall of the square groove 510 and the side wall of the latch 51 abut against each other.

[0060] It is understandable that a plurality of connection components 5 can be provided between the bottom shell 1 and the protective member 4 according to actual needs to enhance the buckling stability of the protective member 4 .

[0061] As a preferred embodiment, a plurality of inverted fasteners 210 are provided on the outer side of the upper cover 2 in this embodiment, and a plurality of protrusions 110 are provided on the outer side of the bottom shell 1. The positions of the inverted fasteners 210 correspond one-to-one to the positions of the protrusions 110, and the protrusions 110 can be snap-fitted into the inverted fasteners 210.

[0062] It should be noted that, by setting the counter fastener 210 and the protrusion 110, the assembly process between the upper cover 2 and the bottom shell 1 is simple and quick, and a quick and stable connection between the upper cover 2 and the bottom shell 1 is achieved. It is only necessary to align the protrusion 110 with the counter fastener 210, and then apply a certain force to snap the two together, which is also convenient for later disassembly and maintenance.

[0063] In addition, the present embodiment also includes a plurality of guide members 7, wherein the guide members 7 are fixedly arranged on the outside of the bottom shell 1 and are arranged corresponding to the position of the locking tongue 52, and the inner wall of the guide member 7 abuts against the outer wall of the buckle member 210 to play a guiding role.

[0064] It should be noted that the guide member 7 can provide a guiding function to ensure that during the assembly process, the buckle 210 of the upper cover 2 can be smoothly and accurately engaged with the raised portion 110 of the bottom shell 1; the inner wall of the guide member 7 abuts against the outer wall of the buckle 210, so that when the two are close, the guide member 7 can guide the buckle 210 into the correct position. This design can improve assembly efficiency and accuracy.

[0065] The external connection port 3 in this embodiment includes a battery positive connection terminal 31, a main positive connection terminal 32, a battery negative connection terminal 33 and a main negative connection terminal 34, wherein the battery positive connection terminal 31, the main positive connection terminal 32, the battery negative connection terminal 33 and the main negative connection terminal 34 are arranged in the bottom shell, and are all arranged near the edge of the bottom shell 1; the battery positive connection terminal 31 and the battery negative connection terminal 33 are arranged adjacent to each other on the same side, the main positive connection terminal 32 and the main negative connection terminal 34 are arranged adjacent to each other on the same side, and the battery positive connection terminal 31 and the main negative connection terminal 34 are arranged on two adjacent sides of the bottom shell 1. The bottom shell 1 is also provided with a main positive circuit 11 and a main negative circuit 12, the two ends of the main positive circuit 11 are electrically connected to the battery positive connection terminal 31 and the main positive connection terminal 32 respectively, and the two ends of the main negative circuit 12 are electrically connected to the battery negative connection terminal 33 and the main negative connection terminal 34 respectively.

[0066] It should be noted that the battery positive connection terminal 31 and the battery negative connection terminal 330 correspond to the positive and negative poles of the battery respectively, and the main positive connection terminal 32 and the main negative connection terminal 34 correspond to the positive and negative poles of the motor driver respectively. When the battery provides electrical energy, the current will flow smoothly to the motor driver through the main positive circuit 11, thereby driving the motor to rotate.

[0067] As a preferred embodiment, the main positive circuit 11 in this embodiment includes a fuse 111, a current measuring device 112, a main fuse 113, a main positive relay 114, a pre-charge relay 115 and a pre-charge resistor 116, wherein the fuse 111, the current measuring device 112, the main fuse 113, the main positive relay 114, the pre-charge relay 115 and the pre-charge resistor 116 are all arranged in the bottom shell 1; the fuse 111 is located on the side of the battery positive connection terminal 31 away from the main positive connection terminal 32, and one end of the fuse 111 is electrically connected to the battery positive connection terminal 31; the current measuring device 112 is located on the side of the fuse 111 away from the battery positive connection terminal 31, and is arranged in parallel with the fuse 111, and one end of the current measuring device 112 is electrically connected to the other end of the fuse 111; the main fuse 113 is located at the edge of one side of the bottom shell 1 away from the main positive connection terminal 32 The main fuse 113 is arranged and arranged vertically with the fuse 111, one end of the main fuse 113 is electrically connected to the other end of the current measuring device 112; the main positive relay 114 is located between the main fuse 113 and the fuse 111, one end contact of the main positive relay 114 is electrically connected to the other end of the main fuse 113, and the other end contact of the main positive relay 114 is electrically connected to the main positive connection terminal 32; the pre-charging relay 115 is located on the side of the main fuse 113 away from the current measuring device 112, and one end contact of the pre-charging relay 115 is electrically connected to the other end of the main fuse 113; the pre-charging resistor 116 is arranged near the edge of the bottom shell 1 and is arranged parallel to the main fuse 113, and one end of the pre-charging resistor 116 is electrically connected to the other end contact of the pre-charging relay 115; the coils of the main positive relay 114 and the pre-charging relay 115 are both electrically connected to the battery BMS management system.

[0068] It should be noted that the fuse 31 is used to protect the main positive circuit from overcurrent damage and can play an overcurrent protection role. When the current in the circuit exceeds its rated value, it will automatically melt, thereby disconnecting the circuit to prevent equipment damage or fire and other dangerous situations caused by overcurrent. The current measuring device 112 is used to monitor the current in the main positive circuit in real time, so as to monitor the circuit status and diagnose faults, and provide important data support for the vehicle management system; the main fuse 113 provides additional safety protection for the circuit to ensure that the power supply can be cut off in time under abnormal circumstances; the main positive relay 114 is used to control the on and off of the main positive circuit 11. When the motor needs to be driven, the relay is closed to allow current to pass; when the motor stops working or fails, the relay is disconnected to cut off the current; before the motor driver is started, the pre-charging resistor 116 is used to limit the initial charging current to prevent excessive current from impacting the motor driver. The pre-charging process helps to smoothly establish the circuit voltage and protect the circuit components from damage. The pre-charging relay 32 is used to control the start and end of the pre-charging process. During the pre-charging stage, the pre-charging relay 115 is closed to allow current to pass through the pre-charging resistor 116; when the pre-charging is completed or the motor driver is ready to receive the full current, the pre-charging relay 115 is disconnected to remove the pre-charging resistor 116 from the circuit. The pre-charging resistor 116 is set to limit the charging current of the energy storage box during the pre-charging stage, so that the capacitor voltage in the system increases slowly, reducing the impact on the capacitor, and avoiding arcing or overcurrent caused by excessive current, thereby protecting the safe operation of the battery and the power system.

[0069] As a preferred embodiment, the main negative circuit 12 in this embodiment includes a shunt 121 and a main negative relay 122, wherein the shunt 121 and the main negative relay 122 are both arranged in the bottom shell 1; the shunt 121 is arranged on the side of the main positive relay 114 away from the main fuse 113, and one end of the shunt 121 is electrically connected to the battery negative connection terminal 33; the main negative relay 122 is located on the side of the shunt 121 away from the battery negative connection terminal 33, and is arranged close to the edge of the bottom shell 1, and is arranged on the same side as the main positive connection terminal 32, one end contact of the main negative relay 122 is electrically connected to the other end of the shunt 121, and the main negative connection terminal 34 is electrically connected to the other end contact of the main negative relay 122.

[0070] It should be noted that the shunt 121 is set up to monitor the current in the main negative circuit in real time. By measuring the current in the main negative circuit, the normal operation of the circuit can be ensured; and the main negative relay 122 is controlled by the BMS to control the on and off of the main negative circuit. When the vehicle needs to drive the motor, the main negative relay 122 is closed to allow current to pass; when the motor stops working or fails, the main negative relay 122 is disconnected to cut off the current.

[0071] As a preferred embodiment, the external port 3 in this embodiment also includes a fast charging positive connection terminal 35 and a fast charging negative connection terminal 36, wherein the fast charging positive connection terminal 35 and the fast charging negative connection terminal 36 are both arranged on the bottom shell 1, and the fast charging positive connection terminal 35 and the fast charging negative connection terminal 36 are arranged on the same side and adjacently; a fast charging positive relay 61 and a fast charging negative relay 62 are also arranged in the bottom shell 1, and the fast charging positive relay 61 and the fast charging negative relay 62 are both arranged in the bottom shell 1; the fast charging positive relay 61 is located between the main negative relay 122 and the pre-charging relay 115, and the fast charging positive relay 61 is located between the main negative relay 122 and the pre-charging relay 115. One end of the contact of the electrical appliance 61 is electrically connected to the other end of the main fuse 113, and the other end of the contact of the fast charging positive relay 61 is electrically connected to the fast charging positive connection terminal 35; the fast charging negative relay 62 is located on the side of the main negative relay 122 away from the shunt 121, and is arranged close to the edge of the bottom shell 1, one end of the contact of the fast charging negative relay 62 is electrically connected to the output end of the shunt 121, and the other end of the contact of the fast charging negative relay 62 is electrically connected to the fast charging negative connection terminal 36; the coils of the fast charging positive relay 61 and the fast charging negative relay 62 are both electrically connected to the battery BMS management system.

[0072] It should be noted that when the vehicle is fast charging, the BMS management system can send a control signal to the fast charging positive relay 61 to close its contacts, thereby allowing current to flow from the main fuse 113 to the positive pole of the fast charging control terminal, starting the fast charging process. In addition, the shunt 121 set on the fast charging negative circuit can monitor the current in the negative circuit, providing real-time current data for the fast charging process, which helps to accurately control the fast charging status.

[0073] The external port 3 in this embodiment also includes a heating positive connection terminal 37, a heating negative connection terminal 38, an air conditioning control positive connection terminal 39 and an air conditioning control negative connection terminal 310, wherein the heating positive connection terminal 37, the heating negative connection terminal 38, the air conditioning control positive connection terminal 39 and the air conditioning control negative connection terminal 310 are all arranged on the bottom shell 1, and are all arranged on the same side, the heating positive connection terminal 37 and the air conditioning control positive connection terminal 39 are arranged correspondingly, and the heating negative connection terminal 38 and the air conditioning control negative connection terminal 310 are arranged correspondingly; the heating positive connection terminal 37 and the air conditioning control positive connection terminal 39 are both electrically connected to the other end of the contact of the main positive relay 114, and the heating negative connection terminal 38 and the air conditioning control negative connection terminal 310 are both electrically connected to the other end of the contact of the main negative relay 122.

[0074] It should be noted that when heating is required, the current flows through the main positive circuit 11 to the heating positive connection terminal 37, and then flows through the heating positive connection terminal 37 to the external heating element to realize the heating function; when the temperature or humidity in the vehicle needs to be adjusted, the current flows through the main positive circuit 11 to the air-conditioning control positive connection terminal 39, and then flows through the air-conditioning control positive connection terminal 39 to the external air-conditioning control terminal to activate the air-conditioning system for adjustment.

[0075] In addition, a branch circuit fuse 8 is electrically connected between the heating positive connection terminal 37 and the air conditioning control positive connection terminal 39 and the other end of the contact of the main positive relay 114 .

[0076] It should be noted that the branch circuit fuse 8 can protect the heating circuit and the air-conditioning control circuit to prevent the components from being damaged by excessive current.

[0077] Working principle:

[0078] When the operator needs to install the wiring, the protective member 4 is rotated to open the corresponding window 200, and then the installation and connection are carried out. When the protective member 4 needs to be buckled, the protective member 4 is turned toward the external port 3, wherein the side of the latch 51 away from the bottom shell 1 is arranged in an inclined surface, and when the bottom of the locking tongue member 52 contacts the inclined surface of the latch 51, since the locking tongue member 52 has the deformation ability, the angle of the locking tongue member 52 will become larger, and when the protective member 4 contacts the surface of the bottom shell 1, the square groove 510 moves to the lowest end, the locking tongue member 52 is reset, and the inner wall of the square groove 510 abuts against the side wall of the latch 51, thereby achieving the purpose of facilitating the disassembly and assembly of the external connection end, facilitating the subsequent maintenance and repair of the operator, and improving the disassembly and assembly efficiency.

[0079] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An integrated BDU controller, characterized in that: It comprises a bottom shell (1), an upper cover (2), an external port (3), a protective member (4) and a connecting assembly (5), wherein: The upper cover (2) is detachably connected to the bottom shell (1); The external port (3) is arranged on the bottom shell (1) and is located at the edge of the bottom shell (1); A window (200) is provided on the upper cover (2), and the window (200) corresponds to the position of the external port (3); The protective member (4) is disposed in the window (200) and can rotate circumferentially toward one side of the external port (3); The connecting assembly (5) is separately arranged on the protective member (4) and the bottom shell (1), and is used to separate or fix the protective member (4) and the upper cover (2).

2. The integrated BDU controller according to claim 1, wherein: The connecting assembly (5) comprises a buckle component (51) and a locking tongue component (52), wherein: The buckle member (51) is fixedly arranged on the bottom shell (1) and vertically arranged toward one side of the upper cover (2); the locking tongue member (52) has a deformable ability and a square groove (510) is formed on one side; The locking tongue member (52) is fixedly arranged on the protective member (4) and vertically arranged toward one side of the bottom shell (1), and the position of the locking tongue member (52) corresponds to the position of the buckle member (51); The protective member (4) is rotated toward one side of the external port (3), pressing the locking tongue member (52) so that the locking member (51) is locked in the square groove (510).

3. The integrated BDU controller according to claim 1, wherein: A plurality of buckles (210) are arranged on the outer side of the upper cover (2), and a plurality of protrusions (110) are arranged on the outer side of the bottom shell (1). The positions of the buckles (210) correspond to the positions of the protrusions (110) one by one, and the protrusions (110) can be snap-fitted into the buckles (210).

4. The integrated BDU controller according to claim 3, characterized in that: It also includes a plurality of guide members (7), wherein the guide members (7) are fixedly arranged on the outside of the bottom shell (1) and are arranged corresponding to the position of the locking tongue member (52), and the inner side wall of the guide member (7) abuts against the outer side wall of the undercut member (210) to play a guiding role.

5. The integrated BDU controller according to claim 1, wherein: The external connection port (3) comprises a battery positive connection terminal (31), a main positive connection terminal (32), a battery negative connection terminal (33) and a main negative connection terminal (34), wherein: The battery positive connection terminal (31), the main positive connection terminal (32), the battery negative connection terminal (33) and the main negative connection terminal (34) are arranged inside the bottom shell, and are all arranged close to the edge of the bottom shell (1); The battery positive connection terminal (31) and the battery negative connection terminal (33) are arranged adjacent to each other on the same side, the main positive connection terminal (32) and the main negative connection terminal (34) are arranged adjacent to each other on the same side, and the battery positive connection terminal (31) and the main negative connection terminal (34) are arranged on adjacent sides of the bottom shell (1); A main positive circuit (11) and a main negative circuit (12) are also provided in the bottom shell (1), and the two ends of the main positive circuit (11) are respectively electrically connected to the battery positive connection end (31) and the main positive connection end (32), and the two ends of the main negative circuit (12) are respectively electrically connected to the battery negative connection end (33) and the main negative connection end (34).

6. The integrated BDU controller according to claim 5, characterized in that: The main positive circuit (11) comprises a fuse (111), a current measuring device (112), a main fuse (113), a main positive relay (114), a pre-charging relay (115) and a pre-charging resistor (116), wherein: The fuse (111), the current measuring device (112), the main fuse (113), the main positive relay (114), the pre-charging relay (115) and the pre-charging resistor (116) are all arranged in the bottom shell (1); The fuse (111) is located on a side of the battery positive connection terminal (31) away from the main positive connection terminal (32), and one end of the fuse (111) is electrically connected to the battery positive connection terminal (31); The current measuring component (112) is located on a side of the fuse (111) away from the battery positive connection terminal (31) and is arranged in parallel with the fuse (111); one end of the current measuring component (112) is electrically connected to the other end of the fuse (111); The main fuse (113) is arranged at an edge of one side of the bottom shell (1) away from the main positive connection end (32), and is arranged vertically with the fuse (111); one end of the main fuse (113) is electrically connected to the other end of the current measuring device (112); The main positive relay (114) is located between the main fuse (113) and the fuse (111), one end contact of the main positive relay (114) is electrically connected to the other end of the main fuse (113), and the other end contact of the main positive relay (114) is electrically connected to the main positive connection terminal (32); The pre-charging relay (115) is located at a side of the main fuse (113) away from the current measuring device (112), and a contact at one end of the pre-charging relay (115) is electrically connected to the other end of the main fuse (113); The pre-charging resistor (116) is arranged near the edge of the bottom shell (1) and is arranged in parallel with the main fuse (113); one end of the pre-charging resistor (116) is electrically connected to the other end contact of the pre-charging relay (115); The coils of the main positive relay (114) and the pre-charging relay (115) are both electrically connected to the battery BMS management system.

7. The integrated BDU controller according to claim 6, characterized in that: The main negative circuit (12) comprises a shunt (121) and a main negative relay (122), wherein: The shunt (121) and the main negative relay (122) are both arranged in the bottom shell (1); The shunt (121) is arranged on a side of the main positive relay (114) away from the main fuse (113), and one end of the shunt (121) is electrically connected to the negative connection end (33) of the battery; The main negative relay (122) is located on a side of the shunt (121) away from the negative connection terminal (33) of the battery, and is arranged close to the edge of the bottom shell (1), and is arranged on the same side as the main positive connection terminal (32). One end contact of the main negative relay (122) is electrically connected to the other end of the shunt (121), and the main negative connection terminal (34) is electrically connected to the other end contact of the main negative relay (122).

8. The integrated BDU controller according to claim 7, characterized in that: The external port (3) further comprises a fast-charge positive connection terminal (35) and a fast-charge negative connection terminal (36), wherein: The fast-charging positive connection terminal (35) and the fast-charging negative connection terminal (36) are both arranged on the bottom shell (1), and the fast-charging positive connection terminal (35) and the fast-charging negative connection terminal (36) are arranged on the same side and adjacent to each other; A fast-charging positive relay (61) and a fast-charging negative relay (62) are also arranged in the bottom shell (1); the fast-charging positive relay (61) and the fast-charging negative relay (62) are both arranged in the bottom shell (1); The fast charging positive relay (61) is located between the main negative relay (122) and the pre-charging relay (115), one end of the contact of the fast charging positive relay (61) is electrically connected to the other end of the main fuse (113), and the other end of the contact of the fast charging positive relay (61) is electrically connected to the fast charging positive connection end (35); The fast charge negative relay (62) is located on a side of the main negative relay (122) away from the shunt (121) and is arranged close to the edge of the bottom shell (1); one end of the contact of the fast charge negative relay (62) is electrically connected to the output end of the shunt (121), and the other end of the contact of the fast charge negative relay (62) is electrically connected to the fast charge negative connection end (36); the coils of the fast charge positive relay (61) and the fast charge negative relay (62) are both electrically connected to the battery BMS management system.

9. The integrated BDU controller according to claim 7, characterized in that: The external connection port (3) further comprises a heating positive connection terminal (37), a heating negative connection terminal (38), an air conditioning control positive connection terminal (39) and an air conditioning control negative connection terminal (310), wherein: The heating positive connection terminal (37), the heating negative connection terminal (38), the air conditioning control positive connection terminal (39) and the air conditioning control negative connection terminal (310) are all arranged on the bottom shell (1) and are all arranged on the same side; the heating positive connection terminal (37) and the air conditioning control positive connection terminal (39) are arranged correspondingly, and the heating negative connection terminal (38) and the air conditioning control negative connection terminal (310) are arranged correspondingly; The heating positive connection terminal (37) and the air conditioning control positive connection terminal (39) are both electrically connected to the other end of the contact of the main positive relay (114), and the heating negative connection terminal (38) and the air conditioning control negative connection terminal (310) are both electrically connected to the other end of the contact of the main negative relay (122).

10. The integrated BDU controller according to claim 9, characterized in that: A branch circuit fuse (8) is electrically connected between the heating positive connection terminal (37) and the air conditioning control positive connection terminal (39) and the other end of the contact of the main positive relay (114).

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