Power battery BDU structure
By setting up a circuit board above the electronic components of the power battery BDU and installing plug-in terminals, combined with the fixing method of the card table and the slot, the safety hazards of traditional BDU wire harness connection are solved, and a safer line connection is achieved.
Patent Information
- Application Number
- CN202421414681.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-20
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-06-20
AI Technical Summary
The wiring harness connection of traditional power battery BDU is too long to be reserved, which is prone to interfering and wear with surrounding electronic components, posing safety hazards.
By setting up a circuit board above the electronic components and installing plug-in terminals on the circuit board, the circuit board is stabilized and fixed by the coordination of the clamping table and the slot; at the same time, the electronic component pins are clamped through the elastic clamping piece to ensure better plug-in.
The stable fixation of the circuit board is achieved, the interference wear of the wiring harness connection and peripheral electronic components is avoided, and the safety of the BDU is improved.
Smart Images
Figure CN222914596U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of BDU, in particular to a power battery BDU structure. Background Art
[0002] BDU is the switch that controls the energy on and off in the power battery, and also plays a role in protecting the battery safety. Signal acquisition and electrical component operation in the BDU need to be achieved through conductive lines. Reliable line design and implementation solutions are important measures to ensure the safety of vehicles and personnel. The traditional battery BDU mainly includes a bottom cover and an upper cover. Electronic components such as relays, pre-charge relays, pre-charge resistors, and current sensors are installed in the upper cavity of the bottom cover. The electronic components are connected by wiring harnesses and then covered by the upper cover. However, the wiring harness connection has the problem of reserved assembly being too long, which is easy to interfere with and wear the surrounding electronic components, making it a safety hazard. Utility Model Content
[0003] The purpose of the utility model is to provide a safer power battery BDU structure.
[0004] The power battery BDU structure described in the utility model includes a bottom cover and an upper cover, electronic components are installed in the bottom cover, a circuit board is arranged above the electronic components, the circuit board is provided with plug-in holes for inserting pins of the electronic components, plug-in terminals for electrically connecting the pins of the electronic components with the circuit board circuits are installed in the plug-in holes, a card platform is arranged on the side of the plug-in terminal facing the upper cover, and a card slot for inserting the card platform is arranged on the side of the upper cover facing the card platform.
[0005] The power battery BDU structure described in the utility model is that the card platform on the circuit board is tightly matched with the card slot of the upper cover, so that the circuit board can be stably fixed inside the power battery BDU structure, which is safer; in addition, by installing plug-in terminals in the plug-in holes of the circuit board, the plug-in terminals and the pins of electronic components are conveniently connected.
[0006] As a preferred solution of the utility model, the card platform is located at both ends of the plug-in terminal.
[0007] As a preferred solution of the utility model, elastic clamping pieces extending toward the upper cover to clamp the pins of the electronic components are provided on both sides of the plug-in terminal, and inner clamping grooves are provided in the clamping grooves corresponding to the elastic clamping pieces.
[0008] As a preferred solution of the utility model, the inner card slot is an inner card slot that clamps the elastic clamping sheets on both sides when the pin of the electronic component is inserted into the plug-in terminal and the elastic clamping sheets on both sides are stretched open.
[0009] As a preferred solution of the utility model, the upper cover is provided with a hook extending toward the bottom cover, and the bottom cover corresponding to the hook is provided with a groove for locking into the hook.
[0010] As a preferred solution of the utility model, a window for wiring electronic components is provided on the side of the upper cover, a cover plate is provided on the window, slide grooves are provided on both sides of the cover plate, and slide rails that are inserted into the slide grooves are provided on the side walls of the window corresponding to the slide grooves.
[0011] As a preferred solution of the utility model, a connector is installed on the circuit board, and one end of the connector extends out from between the bottom cover and the upper cover.
[0012] As a preferred solution of the utility model, a positioning pin is arranged on the upper cover facing the circuit board, and a positioning hole is arranged on the circuit board to match the positioning pin.
[0013] As a preferred solution of the present invention, the circuit board is a flexible circuit board. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic diagram of the explosion of the BDU structure of the power battery of the utility model;
[0015] Figure 2 for Figure 1 Partial schematic diagram of Part A;
[0016] Figure 3 This is a bottom view of the upper cover;
[0017] Figure 4 for Figure 3 Partial schematic diagram of Part B;
[0018] Figure 5 This is a schematic diagram of the BDU structure of the power battery of the utility model. DETAILED DESCRIPTION
[0019] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0020] In the present utility model, it needs to be explained that if there are directional indications involved in the embodiments of the present utility model (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial...), then the directional indication is only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0021] A power battery BDU structure, such as Figure 1 - Figure 5 As shown, it comprises a bottom cover 1 and an upper cover 2, an electronic component 3 is installed in the bottom cover, a circuit board 4 is arranged above the electronic component, the circuit board is provided with a plug-in hole 5 for inserting the pins of the electronic component, a plug-in terminal 6 for electrically connecting the pins of the electronic component with the circuit of the circuit board is installed in the plug-in hole, a card platform 7 is arranged on the side of the plug-in terminal facing the upper cover, and a card slot 8 for inserting the card platform is arranged on the side of the upper cover facing the card platform.
[0022] The circuit board is a flexible circuit board. An insertion hole is opened in the flexible circuit board, and a thin-sheet plug-in terminal is installed on the insertion hole. The plug-in terminal adopts a metal sheet plug-in terminal. The metal sheet plug-in terminal is electrically connected to the circuit on the flexible circuit board. The pins of the electronic components are inserted into the metal sheet plug-in terminal to be electrically connected to the circuit of the flexible circuit board. In addition, the card platform is located at both ends of the plug-in terminal, and is fixed in the card slot 8 by the card platform at both ends of the plug-in terminal.
[0023] The flexible circuit board is also provided with a positioning hole 18, and the upper cover corresponding to the positioning hole 18 is provided with a positioning pin 17. The flexible circuit board is installed into the positioning pin through its positioning hole, so that the flexible circuit board can be better fixed on the upper cover, and its fixation is also more secure; in addition, connectors 16 are provided at both ends of the flexible circuit board, and one end of the connector extends from between the bottom cover and the upper cover.
[0024] In order to enable the metal sheet plug-in terminal to better contact with the electronic component pins, elastic clamping sheets 9 are provided on both sides of the metal sheet plug-in terminal, and the electronic component pins are clamped by the elastic clamping sheets 9 to make the contact better; in addition, an inner clamping slot 10 is provided in the slot corresponding to the elastic clamping sheet, and the inner clamping slot is used to clamp the elastic clamping sheets on both sides when the electronic component pin is inserted into the plug-in terminal and the elastic clamping sheets on both sides are stretched open, thereby further increasing the stability of the flexible circuit board fixed on the upper cover.
[0025] The upper cover is provided with a hook 11 extending toward the bottom cover, and the bottom cover corresponding to the hook is provided with a groove 12 for snapping into the hook. By snapping the hook 11 on the upper cover into the groove 12 on the bottom cover, the upper cover can be well closed on the bottom cover, making it more convenient to disassemble and assemble.
[0026] like Figure 5 As shown, a window 13 for wiring electronic components is provided on the side of the upper cover, and a cover plate 14 is provided on the window. Slide grooves are provided on both sides of the cover plate, and a slide rail 15 that is inserted into the slide groove is provided on the window side wall corresponding to the slide groove. The cover plate can shield the wiring terminals of the electronic components to provide better protection. When wiring is required, the cover plate can be slid on the slide rail through the slide groove on the cover plate, and wiring is more convenient.
[0027] The above embodiments are only used to illustrate the detailed scheme of the utility model. The utility model is not limited to the above detailed scheme, that is, it does not mean that the utility model must rely on the above detailed scheme to be implemented. Those skilled in the art should understand that any improvement to the utility model, equivalent replacement of various raw materials of the utility model product, addition of auxiliary components, selection of specific methods, etc., all fall within the protection scope and disclosure scope of the utility model.
Claims
1. A power battery BDU structure, comprising a bottom cover (1) and an upper cover (2), wherein electronic components (3) are installed in the bottom cover, characterized in that: A circuit board (4) is arranged above the electronic component, the circuit board is provided with an insertion hole (5) for inserting the pin of the electronic component, a plug-in terminal (6) is installed in the insertion hole to electrically connect the pin of the electronic component with the circuit of the circuit board, a card platform (7) is arranged on the side of the plug-in terminal facing the upper cover, and a card slot (8) is arranged on the side of the upper cover facing the card platform for inserting the card platform.
2. The power battery BDU structure according to claim 1, characterized in that: The card platforms are located at two ends of the plug-in terminal.
3. The power battery BDU structure according to claim 1, characterized in that: Both sides of the plug-in terminal are provided with elastic clamping pieces (9) extending toward the upper cover to clamp the pins of the electronic components, and an inner clamping slot (10) is provided in the clamping slot corresponding to the elastic clamping piece.
4. The power battery BDU structure according to claim 3, characterized in that: The inner card slot is an inner card slot for clamping the elastic clamping sheets on both sides when the pins of the electronic components are inserted into the plug-in terminal and the elastic clamping sheets on both sides are stretched open.
5. The power battery BDU structure according to claim 1, characterized in that: The upper cover is provided with a hook (11) extending toward the bottom cover, and the bottom cover corresponding to the hook is provided with a clamping groove (12) for clamping into the hook.
6. The power battery BDU structure according to claim 1, characterized in that: A window (13) for connecting electronic components is provided on the side of the upper cover, a cover plate (14) is provided on the window, slide grooves are provided on both sides of the cover plate, and slide rails (15) that are inserted into the slide grooves are provided on the side walls of the window corresponding to the slide grooves.
7. The power battery BDU structure according to claim 1, characterized in that: A connector (16) is installed on the circuit board, and one end of the connector extends out from between the bottom cover and the upper cover.
8. The power battery BDU structure according to claim 1, characterized in that: A positioning pin (17) is provided on the upper cover on the side facing the circuit board, and a positioning hole (18) is provided on the circuit board that matches the positioning pin.
9. The power battery BDU structure according to claim 1, characterized in that: The circuit board is a flexible circuit board.