Multi-layer circuit board for new energy automobile BMS

Abstract

The utility model discloses a multi-layer circuit board used for a new energy automobile BMS, comprising a substrate, the front and rear sides of the substrate are respectively and movably provided with a group of golden fingers in an inserted manner, the upper and lower ends of the substrate are respectively provided with a group of outer plates in an adhered manner, and the outer sides of the outer plates are provided with welding grooves; a first positioning frame is movably installed on the outer side of each outer plate, and a fan module is installed in the middle of each first positioning frame in an embedded mode. The limiting plate is installed on the outer side of the outer plate to limit the first positioning frame, so that a worker can select the installation position of the fan module according to a heat concentration area when the circuit board is used, the circuit board is cooled in a targeted mode, the efficient use frequency of the circuit board can be kept, and a welding groove is formed in the surface of the outer plate, so that the welding efficiency is improved. Therefore, each compact element can be welded in the welding groove, so that the welding point is prevented from being damaged due to the friction between the welded electric appliance element and the outside in the using or carrying process, and the use safety of the circuit board is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of multilayer circuit boards, specifically a multilayer circuit board for a BMS of a new energy vehicle. Background Art

[0002] New energy vehicles, also known as alternative fuel vehicles, include pure electric vehicles, fuel cell electric vehicles, and other vehicles that all use non-petroleum fuels, as well as hybrid electric vehicles, ethanol gasoline vehicles, and other vehicles that partially use non-petroleum fuels. All existing new energy vehicles are included in this concept, which are specifically divided into six categories: hybrid vehicles, pure electric vehicles, fuel cell vehicles, alcohol ether fuel vehicles, natural gas vehicles, etc. The battery management system (BMS) is a control system that protects the safety of power batteries and monitors the battery status at all times. The existing multi-layer circuit boards used for the BMS of new energy vehicles, after the multi-layer circuit boards are installed, are easily driven to shake during the shaking of the car, causing the surface of the multi-layer circuit boards to be damaged, and the multi-layer circuit boards will heat up when overcharged, and the heat is difficult to discharge, which can easily shorten the service life of the multi-layer circuit boards.

[0003] A Chinese utility model patent, publication number CN 216217757 U, discloses a multilayer circuit board for a new energy vehicle BMS. The invention relates to the technical field of multilayer circuit boards and includes a circuit board body and a first top plate and a second top plate, respectively disposed at the top and bottom of the circuit board body. The top of the second top plate is provided with a first groove that matches the bottom of the circuit board body, and a sponge pad is fixedly disposed on the bottom wall of the first groove. The bottom of the first top plate is provided with a second groove that matches the top of the circuit board body. By disposing the first and second top plates, the circuit board body is placed in the first groove at the top of the second top plate, and the first top plate is placed over the circuit board body. The first and second top plates encapsulate the circuit board body. A heat sink is disposed at the top of the first top plate, and a micromotor drives the fan blades to rotate, accelerating air circulation. External air enters the circuit board body through a dust screen, dissipating heat within the circuit board body.

[0004] The above-mentioned public documents provide protection for the gold fingers on the circuit board body, which makes it impossible to quickly repair the circuit board and can only be replaced. Therefore, there is a need for a multi-layer circuit board for the BMS of new energy vehicles. Summary of the Invention

[0005] The purpose of the present utility model is to provide a multi-layer circuit board for a new energy vehicle BMS, which provides more options for the use of the circuit board through detachable gold fingers, so as to solve the technical problems mentioned in the background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a multi-layer circuit board for a new energy vehicle BMS, comprising a base plate, a group of gold fingers movably mounted on the front and rear sides of the base plate, a group of outer plates adhesively mounted on the upper and lower ends of the base plate, and welding grooves formed on the outer sides of the outer plates;

[0007] A group of first positioning frames is movably installed on the outer side of each group of outer panels, and a fan module is embedded and installed in the middle of the first positioning frames.

[0008] Preferably, two groups of slots are symmetrically provided on the front and rear sides of the base plate, and a group of connecting plug boards are respectively installed on the left and right sides of the base plate.

[0009] Preferably, a supporting connecting plate is fixedly installed on the gold finger connecting end, and the supporting connecting plate is plugged and installed in contact with the inner wall of the slot.

[0010] Preferably, a group of limit plates are respectively installed on the left and right sides of the outer plate, and each group of limit plates is adhesively installed on the surface of the corresponding side connecting plug plate, and a positioning groove is opened on the outer side of the limit plate.

[0011] Preferably, two sets of mounting plates are respectively installed at both ends of the first positioning frame, and the lower surfaces of the mounting plates are fastened with the inner surface of the positioning groove by bolts to fit the surface of the limiting plate.

[0012] Preferably, two groups of operation windows are symmetrically opened on the left and right sides of the first positioning frame, and several groups of second positioning frames are arranged inside each group of operation windows. A group of guide rotating heads are rotatably installed inside each group of second positioning frames, and a group of flexible wires are arranged inside each group of guide rotating heads, and a welding head is fixedly installed at the end of the flexible wire.

[0013] Preferably, one end of the flexible wire extends into the first positioning frame and is electrically connected to the fan module.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] By adding detachable gold fingers to the circuit board, the circuit board can be connected directly by plugging in some specific situations. At the same time, because the gold fingers can be removed and replaced, the circuit board as a whole does not need to worry about the damage of the gold fingers during the plugging and unplugging process. Both sides of the substrate can be plugged in, which increases the service life of the circuit board and provides better usage options for users.

[0016] By installing a limit plate on the outside of the outer panel to limit the first positioning frame, the staff can select the installation position of the fan module according to the heat concentration area when the circuit board is in use, so as to perform targeted cooling treatment on the circuit board, so that the circuit board can maintain a high efficiency of use frequency. The welding grooves opened on the surface of the outer panel allow each compact component to be welded inside the welding grooves, so as to avoid damage to the welding points caused by friction between the welded electrical components and the outside world during use or carrying, thereby further improving the safety of circuit board use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the disassembly of the installation structure of the first positioning frame of the utility model;

[0019] Figure 3 This is a schematic diagram of the disassembly of the substrate installation structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the installation structure of the fan module of the utility model;

[0021] Figure 5 This is an enlarged schematic diagram of the structure at point A of the present utility model.

[0022] In the figure: 1. Baseboard; 2. Slot; 3. Connecting board; 4. Gold finger; 5. Support connecting plate; 6. Outer plate; 7. Welding slot; 8. Limit plate; 9. Positioning slot; 10. First positioning frame; 11. Mounting plate; 12. Fan module; 13. Operation window; 14. Second positioning frame; 15. Guide rotor; 16. Flexible wire; 17. Welding head. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] The utility model provides: a multi-layer circuit board for a new energy vehicle BMS, such as Figure 1-Figure 5 As shown, it includes a base plate 1, a group of gold fingers 4 are movably installed on the front and back sides of the base plate 1, a group of outer plates 6 are glued and installed on the upper and lower ends of the base plate 1, and a welding groove 7 is provided on the outer side of the outer plate 6; a group of first positioning frames 10 are movably installed on the outer side of each group of outer plates 6, and a fan module 12 is embedded in the middle of the first positioning frame 10.

[0025] Preferably, two groups of slots 2 are symmetrically provided on the front and back sides of the substrate 1, and a group of connecting plug-ins 3 are respectively installed on the left and right sides of the substrate 1. The slots 2 provided on both sides of the substrate 1 are plugged into the supporting connecting plates 5, so that the gold fingers 4 can be quickly replaced, and the impact of wear on the gold fingers during use or plugging and unplugging can also be reduced. The connecting plug-ins 3 installed on both sides of the substrate 1 support the limit plates 8, so that the first positioning frame 10 can be stably installed in the layout position to target the high temperature area of ​​the circuit board.

[0026] Furthermore, a supporting connecting plate 5 is fixedly installed at the connection end of the gold finger 4, and the supporting connecting plate 5 is installed in contact with the inner wall of the slot 2. The supporting connecting plate 5 installed at the connection end of the gold finger 4 enables the gold finger 4 to be smoothly inserted and replaced, and can also protect the circuit board through the supporting connecting plate 5. The circuit board can be used by inserting the gold finger 4, thereby improving the selectivity of circuit board use.

[0027] Furthermore, a group of limit plates 8 are installed on the left and right sides of the outer plate 6 respectively, and each group of limit plates 8 is glued and installed on the surface of the corresponding side connecting plug plate 3. A positioning groove 9 is opened on the outside of the limit plate 8. The limit plates 8 installed on both sides of the outer plate 6 are used to limit the first positioning frame 10. The positioning groove 9 starting from the surface of the limit plate 8 cooperates with the bolt to lock the mounting plate 11, so that the fan module 12 is fixed in the use position, and after the first positioning frame 10 is fixed, it can also protect the circuit board, and cooperate with the welding groove 7 opened for the electrical components of the circuit board to prevent direct contact between the outside world and the circuit board, thereby improving the safety of the circuit board.

[0028] It is worth noting that two sets of mounting plates 11 are installed at both ends of the first positioning frame 10, and the lower surface of the mounting plate 11 is fastened with the surface of the limiting plate 8 inside the positioning groove 9 by bolts. The mounting plates 11 on both sides of the first positioning frame 10 support the first positioning frame 10 so that the first positioning frame 10 will not contact the components soldered on the surface of the circuit board.

[0029] Specifically, two groups of operation windows 13 are symmetrically provided on the left and right sides of the first positioning frame 10, and several groups of second positioning frames 14 are arranged inside each group of operation windows 13. A group of guide turn heads 15 are rotatably installed inside each group of second positioning frames 14, and a group of flexible wires 16 are arranged inside each group of guide turn heads 15. A welding head 17 is fixedly installed at the end of the flexible wire 16. One end of the flexible wire 16 extends into the interior of the first positioning frame 10 and is electrically connected to the fan module 12. The operation window 13 can facilitate the welding operation of the flexible wire 16 after the first positioning frame 10 is installed. The second positioning frame 14 and the guide turn head 15 inside the operation window 13 complete the limiting and guiding of the flexible wire 16, so that the flexible wire 16 will not move at will after welding.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-layer circuit board for a new energy vehicle BMS, characterized by: It comprises a base plate (1), a group of gold fingers (4) are movably plugged and installed on the front and rear sides of the base plate (1), a group of outer plates (6) are adhesively installed on the upper and lower ends of the base plate (1), and a welding groove (7) is provided on the outer side of the outer plate (6); A group of first positioning frames (10) is movably mounted on the outside of each group of outer panels (6), and a fan module (12) is embedded and mounted in the middle of the first positioning frames (10).

2. A multilayer circuit board for a new energy vehicle BMS according to claim 1, characterized in that: Two groups of slots (2) are symmetrically provided on the front and rear sides of the base plate (1), and a group of connecting plug boards (3) are respectively installed on the left and right sides of the base plate (1).

3. A multilayer circuit board for a new energy vehicle BMS according to claim 2, characterized in that: A supporting connecting plate (5) is fixedly mounted on the connecting end of the gold finger (4), and the supporting connecting plate (5) is plugged and mounted in contact with the inner wall of the slot (2).

4. A multilayer circuit board for a new energy vehicle BMS according to claim 3, characterized in that: A set of limit plates (8) are respectively installed on the left and right sides of the outer plate (6), and each set of limit plates (8) is adhesively installed on the surface of the corresponding side connecting plug plate (3). A positioning groove (9) is opened on the outer side of the limit plate (8).

5. A multilayer circuit board for a new energy vehicle BMS according to claim 4, characterized in that: Two sets of mounting plates (11) are respectively installed at both ends of the first positioning frame (10), and the lower surfaces of the mounting plates (11) are fastened with the inner surfaces of the positioning grooves (9) and fit on the surface of the limiting plates (8) through bolt locking.

6. A multilayer circuit board for a new energy vehicle BMS according to claim 5, characterized in that: Two groups of operation windows (13) are symmetrically provided on the left and right sides of the first positioning frame (10), and a plurality of groups of second positioning frames (14) are provided inside each group of the operation windows (13). A group of guide rotating heads (15) are rotatably installed inside each group of the second positioning frames (14), and a group of flexible wires (16) are provided inside each group of the guide rotating heads (15), and a welding head (17) is fixedly installed at the end of the flexible wires (16).

7. A multilayer circuit board for a new energy vehicle BMS according to claim 6, characterized in that: One end of the flexible wire (16) extends into the interior of the first positioning frame (10) and is electrically connected to the fan module (12).

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