An electricity connection component and a new energy vehicle battery detection module

Abstract

The present invention discloses a power connection component and a new energy vehicle battery detection module. The power connection component includes a PCB board, a double-row wire connector, an FFC flexible wire, and an external connecting wire. There are two groups of wire pads and one group of connector pads on the PCB board. Each wire pad is connected to each connector pad in a one-to-one correspondence. The end conductors of the two FFC flexible wires are respectively welded to the two groups of wire pads. The double-row wire connector includes a connector female seat and a connector male end. There are upper and lower rows of conductive terminals in the connector female seat. The two rows of conductive terminals are respectively connected to the two groups of wire pads through the connector pads to be electrically connected. The gold finger ends of the two external connecting wires are respectively in contact with the upper and lower rows of conductive terminals to form an electrical connection. In the present invention, the structures of the power connection component and the new energy vehicle battery detection module are optimized and designed, enhancing the integrity, and the circuit layout is more orderly and reasonable, making the wiring structure clear, facilitating wiring and maintenance, and having good practicability.

Description

Technical Field

[0001] The present invention relates to a battery detection module for new energy vehicles, belonging to the technical field of new energy vehicle batteries. Background Art

[0002] With the popularization and promotion of new energy vehicles, new energy vehicles powered by power batteries will gradually replace existing fuel vehicles. As the core of the energy system of new energy vehicles, the battery management system must detect various parameters such as the voltage and temperature of the power battery. The battery management system is connected to the power battery through a detection module to obtain relevant parameter data of the battery. Each wire group in the detection module is connected to the battery management system through a power connection component. In the existing battery pack detection module, a hard PCB board or an FPC / FFC flexible cable wiring method is usually adopted, with many lines and related components and a messy and non-simple layout, complex production process and high cost. Summary of the Invention

[0003] Aiming at the deficiencies pointed out in the background art, the present invention aims to provide a power connection component with a reasonable optimized structure and a new energy vehicle battery detection module having the power connection component.

[0004] The technical solution for achieving the object of the present invention is as follows:

[0005] The present invention provides a power connection component, including a PCB board, a double-row wire connector, an FFC flexible cable, and an external connecting wire. Two groups of wire pads for connecting two FFC flexible cables and a group of connector pads connected to the double-row wire connector are provided on the PCB board. Each wire pad is connected to each connector pad in one-to-one correspondence. The end conductors of the two FFC flexible cables are respectively welded to the two groups of wire pads. The double-row wire connector includes a connector female seat fixed on the PCB board and a connector male end connected to the ends of two externally arranged connecting wires. The connector female seat is inserted and matched with the connector male end. Two rows of conductive terminals corresponding to the connector pads are arranged in the connector female seat. The two rows of conductive terminals are respectively conducted with the two groups of wire pads through the connector pads. The gold finger ends of the two external connecting wires are respectively in contact with the two rows of conductive terminals to form an electrical connection.

[0006] In the above technical solution, a pad protection pressing piece is fixed at each wire pad on the PCB board, and the pad protection pressing piece is used to press the end of the FFC flexible cable.

[0007] In the above technical solution, the pad protection pressing piece is fixed on the PCB board by screws, and a positioning boss is provided on the pad protection pressing piece, and a positioning hole matched with the positioning boss is provided on the PCB board.

[0008] In the above technical solution, a socket is recessed at one end inside the female connector housing. A row of the conductive terminals is provided on each of the upper and lower sides of the socket on the female connector housing. All the conductive terminals have power connection pins extending from the other end of the female connector housing and being correspondingly welded to the respective connector pads.

[0009] One end of the male connector protrudes with a plug head adapted to be inserted into the socket. On the upper and lower sides of the plug head on the male connector, a positioning groove is formed on each side. Two external connecting wires are positioned and connected to the male connector in an upper and lower arrangement, and the gold finger ends on the two external connecting wires are respectively embedded in the two positioning grooves.

[0010] In the above technical solution, terminal grooves are spaced along the width direction of the socket on the upper and lower side walls of the socket. Each of the conductive terminals is correspondingly embedded in each terminal groove, and each conductive terminal has an elastic contact portion bent inward toward the socket to contact the gold finger end.

[0011] In the above technical solution, the power connection pins of all the conductive terminals are arranged at intervals in a straight line along the width direction of the socket, and the power connection pins of the upper row of conductive terminals and the power connection pins of the lower row of conductive terminals are alternately arranged.

[0012] In the above technical solution, a plastic part retaining pin is installed on the male connector. A positioning post extending into the male connector is provided on the plastic part retaining pin. A positioning notch for positioning and cooperating with the positioning post is provided on the external connecting wire.

[0013] In the above technical solution, a channel for the external connecting wire to pass through is formed at the rear end of the positioning groove on the male connector. An installation groove is formed at a position corresponding to the channel on the outside of one side of the male connector. The installation groove extends along the width direction of the socket. At each end of the installation groove, it is vertically communicated with the two channels through a positioning jack. The plastic part retaining pin is embedded in the installation groove, and the positioning posts at both ends of the plastic part retaining pin are inserted into the corresponding positioning jacks and cooperate with the positioning notch.

[0014] In the above technical solution, buckles are formed at both ends of the plastic part retaining pin, and card holes respectively cooperating with the two buckles are provided on the male connector.

[0015] In the above technical solution, side slots are formed on the opposite side surfaces of the positioning groove, and a stop is formed at the front end of the positioning groove. The two side edges of the gold finger end on the external connecting wire are respectively inserted into the two side slots, and the stop is arranged along the width direction of the socket and blocks the front part of the gold finger end.

[0016] The present invention also provides a new energy vehicle battery detection module, including an insulating support plate, two line groups arranged side by side and fixed on the insulating support plate, and a power connection component connected to the two line groups and connected to an external line, each line group includes an FFC flexible flat cable and a conductive aluminum sheet, the FFC flexible flat cable is stripped to form a plurality of branch conductors, and the branch conductors are electrically connected to the conductive aluminum sheet through a nickel sheet; the power connection component adopts the power connection component described above.

[0017] In the above technical solution, an inwardly recessed groove is formed on the surface of the insulating support plate, and the wire group is positioned in the groove.

[0018] The present invention has positive effects: the structural design of the power connection component of the present invention is reasonable, two FFC flexible flat cables are respectively welded to two groups of flat cable pads on the PCB board to achieve conduction, and a double-row cable connector is arranged at the connector pad on the PCB board, and two upper and lower external flat cables are connected through the double-row cable connector, so that the two FFC flexible flat cables can be electrically connected to the two external flat cables in a one-to-one correspondence to form two current paths, the structure of the power connection component and the new energy vehicle battery detection module using the power connection component is optimized and designed, the line arrangement is more orderly and reasonable, the wiring structure is clear, the wiring and maintenance are convenient, and the practicability is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the power connection component in the present invention;

[0020] Figure 2 for Figure 1 An exploded view of the electrical connection assembly shown;

[0021] Figure 3 A top view of the double-row cable connector of the present invention;

[0022] Figure 4 For along Figure 3 Sectional view cut along line AA;

[0023] Figure 5 For along Figure 3 Sectional view cut along the midline BB;

[0024] Figure 6 For along Figure 3 Sectional view cut along the CC line;

[0025] Figure 7 It is a structural schematic diagram of the connector female socket in the present invention;

[0026] Figure 8 To see from another angle Figure 7 The schematic diagram of the structure of the female connector shown;

[0027] Figure 9 It is a schematic structural diagram of the male end of the connector in the present invention;

[0028] Figure 10 is Figure 9 an exploded view of the male end of the connector shown;

[0029] Figure 11 It is a schematic structural diagram of the new energy vehicle battery detection module in the present invention;

[0030] Figure 12 is Figure 11 an exploded view of the new energy vehicle battery detection module shown in

[0031] The reference numerals shown in the figure are: 1 - PCB board; 11 - flexible cable pad; 12 - connector pad; 13 - positioning hole; 2 - double-row cable connector; 20 - socket; 21 - female connector; 211 - hanging platform; 22 - male connector; 221 - plug head; 222 - hook; 23 - conductive terminal; 231 - power connection pin; 232 - elastic contact part; 24 - positioning groove; 241 - side slot; 242 - stop; 25 - terminal slot; 26 - hole; 27 - installation groove; 28 - positioning jack; 29 - clamping hole; 3 - FFC flexible cable; 31 - branch conductor; 4 - external flexible cable; 41 - gold finger end; 42 - positioning notch; 5 - pad protection pressing piece; 51 - positioning boss; 6 - plastic part pin; 61 - positioning post; 62 - buckle; 7 - insulating support plate; 71 - sinking groove; 8 - wire group; 81 - conductive aluminum sheet; 91 - conductive nickel sheet; 101 - temperature sensor. Specific Embodiment

[0032] To make the technical problems solved, the technical solutions adopted and the technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be further described in detail below with reference to the drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present invention.

[0033] Embodiment 1

[0034] In this embodiment, a power connection component is provided, and its structure is as shown in Figures 1 to 10As shown in the figure, it includes a PCB board 1, a double-row wire connector 2, an FFC flexible flat cable 3, and an external connecting wire 4. On the PCB board 1, there are two sets of wire pads 11 respectively connected to two FFC flexible flat cables 3 and a set of connector pads 12 connected to the double-row wire connector 2. Each wire pad 11 is connected to each connector pad 12 in one-to-one correspondence. The end conductors of the two FFC flexible flat cables 3 are respectively soldered to the two sets of wire pads 11. The double-row wire connector 2 includes a connector female socket 21 fixed on the PCB board 1 and a connector male end 22 connected to the ends of two externally arranged connecting wires 4 arranged up and down. The connector female socket 21 is inserted and mated with the connector male end 22. Inside the connector female socket 21, there are two rows of conductive terminals 23 connected to the connector pads 12 in one-to-one correspondence. The two rows of conductive terminals 23 are respectively conducted with the two sets of wire pads 11 through the connector pads 12. The gold finger ends 41 of the two external connecting wires 4 are respectively in contact with the two rows of conductive terminals 23 in correspondence to form an electrical connection. The structural design of the power connection component in this embodiment is reasonable. By soldering the two FFC flexible flat cables 3 to the two sets of wire pads 11 on the PCB board respectively to achieve conduction, and arranging a double-row wire connector 2 at the connector pads 11 on the PCB board, and connecting two externally arranged connecting wires through the double-row wire connector 2, two current paths can be formed by electrically connecting the two FFC flexible flat cables 22 and the two external connecting wires in one-to-one correspondence. The structure of the above power connection component is optimized, and the circuit layout is more orderly and reasonable, making the wiring structure clear, facilitating wiring and maintenance, and having good practicability. The external connecting wire can preferably be an FFC cable.

[0035] As an implementation for strengthening the connection firmness between the connector female socket 21 and the connector male end 22, in this embodiment, a hook 222 is formed on the connector male end 22, and a hanging platform 211 matched with the hook 222 is formed on the connector female socket 21. When the connector male end 22 is inserted into the connector female socket 21 in place, the hook 222 and the hanging platform 211 form a hooking fit, with a firm mating connection, avoiding the abnormal separation of the connector male end 22 from the connector female socket 21 when the connector male end 22 is pulled by an external force.

[0036] See Figures 7 to 10As shown, in this embodiment, a socket 20 is provided in a recessed manner at one end of the connector female base 21, and a row of conductive terminals 23 are provided on the upper and lower sides of the socket 20 on the connector female base 21, and all conductive terminals 23 have electrical connection pins 231 extending from the other end of the connector female base 21 and correspondingly welded to each connector pad 12, and the circuit is connected by correspondingly welding each electrical connection pin 231 with each connector pad 12; a plug portion 221 suitable for inserting into the socket 20 is provided protruding at one end of the connector male end 22, The connector male end 22 is formed with a positioning groove 24 on the upper and lower sides of the plug part 221. Two external cables 4 are positioned and connected to the connector male end 22, one above and one below. The gold finger ends 41 on the two external cables 4 are respectively embedded in the two positioning grooves 24. When the connector male end 22 is plugged into the connector female socket 21, the plug part 221 is inserted into the slot 20. At the same time, the gold finger ends 41 on the upper and lower sides of the plug part 221 are respectively in contact with the upper and lower rows of conductive terminals 23 to conduct the circuit.

[0037] In this embodiment, terminal grooves 25 are arranged at intervals along the upper and lower side walls of the socket 20 in the width direction of the socket 20, and each conductive terminal 23 is embedded in each terminal groove 25 one by one, and each conductive terminal 23 has an elastic contact portion 232 bent toward the inside of the socket 20 to contact the gold finger end 41. The reliability of the electrical connection is ensured by the elastic contact portion 232 and the gold finger end 41.

[0038] In this embodiment, the connection pins 231 of all the conductive terminals 23 are arranged in a straight line along the width direction of the socket 20, and the connection pins 231 of the upper row of conductive terminals 23 and the connection pins 231 of the lower row of conductive terminals 23 are arranged alternately.

[0039] As a preferred implementation in this embodiment, see Figure 5 , Figure 6 and Figure 10 As shown, the connector male end 22 is provided with a plastic bayonet 6, and the plastic bayonet 6 is provided with a positioning column 61 extending into the connector male end 22, and the external cable 4 is provided with a positioning notch 42 that cooperates with the positioning column 61. When connecting the connector male end 22 and the cable 4, the end of the cable 4 is plugged into the connector male end 22, and then the plastic bayonet 6 is installed on the connector male end 22 and the positioning column 61 thereon cooperates with the positioning notch 42 on the cable 4 to lock the end of the cable 4 on the connector male end 22, so as to prevent the cable 4 from shaking back and forth and falling off due to external pull.

[0040] In this embodiment, a hole 26 for an external flexible cable 4 to pass through is formed at the rear end of the positioning groove 24 on the male connector 22. An installation groove 27 is formed at a position corresponding to the hole 26 on the outside of one side of the male connector 22. The installation groove 27 extends along the width direction of the socket 20. At both ends of the installation groove 27, a positioning jack 28 is vertically communicated with the two holes 26 respectively. The plastic part pin 6 is embedded in the installation groove 27. The positioning posts 61 at both ends of the plastic part pin 6 are inserted into the corresponding positioning jacks 28 and cooperate with the positioning notch 42. Specifically, see Figure 5 As shown, by the cooperation of the two positioning posts 61 on the plastic part pin 6 and the positioning notches 42 on both sides of the two flexible cables, the reliability of the connection between the flexible cable and the male connector 22 can be effectively enhanced.

[0041] In this embodiment, in order to quickly and reliably install the plastic part pin 6 on the male connector 22, a buckle structure is provided between the plastic part pin 6 and the male connector 22. Specifically, one kind of buckle structure: buckles 62 are formed at both ends of the plastic part pin 6. The male connector 22 is provided with card holes 29 respectively cooperating with the two buckles 62. The plastic part pin 6 is fixed on the male connector 22 by the cooperation of the buckles 62 at both ends and the corresponding two card holes 29 on the male connector 22.

[0042] In this embodiment, side slots 241 are formed on opposite side surfaces of the positioning groove 24, and a retaining platform 242 is formed at the front end of the positioning groove 24. Both side edges of the gold finger end 41 of the external flexible cable 4 are inserted into the two side slots 241 respectively. And the retaining platform 242 is arranged along the width direction of the socket 20 and blocks the front part of the gold finger end 41. By arranging the side slots 241 on both sides of the positioning groove 24, when the gold finger end 41 is inserted into the positioning groove 24, both side edges of the gold finger end 41 are correspondingly inserted into the side slots 241 to limit the upper and lower positions of both side edges of the gold finger end 41, avoid the up and down shaking of the gold finger end 41, strengthen the tightness of the connection between the gold finger end 41 and the plug head 221 on the male connector 22, and by arranging the retaining platform 242, when the plug head 221 of the male connector 22 is inserted into the socket 10 of the female connector 21, the retaining platform 242 completely blocks the front edge of the gold finger end 41, and can better bear the resistance during the plugging process, avoid the front edge of the gold finger end 41 being exposed and causing scratching damage during the plugging process.

[0043] Embodiment 2

[0044] The solution of this embodiment is basically the same as that of Embodiment 1. The difference is that in order to enhance the connection reliability between the FFC flexible flat cable 3 and the PCB board 1, at each cable pad 11 on the PCB board 1, a pad protection pressing piece 5 is fixed. After the end conductor of the FFC flexible flat cable 3 is welded to the cable pad 11 on the PCB board 1, the end of the FFC flexible flat cable 22 is pressed tightly by the pad protection pressing piece 5 to protect the welding point between the FFC flexible flat cable and the PCB solder pad, and to avoid the phenomenon of solder joint cracking and open circuit due to the FFC flexible flat cable 22 being stressed and pulled.

[0045] In this embodiment, the pad protection pressing piece 5 is fixed on the PCB board 1 by screws, and a positioning boss 51 is provided on the pad protection pressing piece 5. A positioning hole 13 matching with the positioning boss 51 is provided on the PCB board 1. The pad protection pressing piece 5 is more effectively positioned through the cooperation of the positioning boss 51 and the positioning hole 13, and the pad protection pressing piece 5 is reliably fixedly connected to the PCB board 1 by screws.

[0046] Embodiment 3

[0047] A new energy vehicle battery detection module, as Figure 11 and Figure 12 shown, which includes an insulating support plate 7, two parallel wire groups 8 fixed on the insulating support plate 7, and a power connection component connected to the two wire groups 8 and connecting to the external circuit. Each wire group 8 includes an FFC flexible flat cable 3 and a conductive aluminum sheet 81. During actual installation and use, the conductive aluminum sheet 81 is electrically connected to the battery. On the FFC flexible flat cable 3, a plurality of branch conductors 31 spaced along the length direction of the FFC flexible flat cable 3 are formed by strip division. The branch conductors 31 are electrically connected to the conductive aluminum sheet 81 through nickel sheets 91. As a further improvement based on this embodiment, a temperature sensor 101 is also connected to the FFC flexible flat cable 3 through a wire to monitor the temperature of the battery pack. The power connection component adopts the power connection component described in Embodiment 1. By fixing the two wire groups 8 on the insulating support plate 7, the integrity of the entire detection module is better, and it is convenient for installation. In addition, by using the power connection component in Embodiment 1 to connect the wire group 8 to the battery management system. In this way, the structure of the entire battery detection module can be made more orderly and reasonable, facilitating installation and maintenance.

[0048] In this embodiment, a sunken groove 71 is formed on the surface of the insulating support plate 7. The wire group 8 is positioned in the sunken groove 71. By providing the sunken groove 71 and arranging the wire group 8 in the sunken groove, it is avoided that the wire group protrudes too much from the surface of the insulating support plate 7, increasing the overall compactness.

[0049] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And these obvious changes or modifications derived from the essence of the present invention still fall within the protection scope of the present invention.

Claims

1. A battery detection module for a new energy vehicle, comprising an insulating pallet (7), two side-by-side wire groups (8) fixed on the insulating pallet (7), and a power connection component connected to the two wire groups (8) and connecting to an external circuit. Each wire group (8) includes an FFC flexible flat cable (3) and a conductive aluminum sheet (81). A plurality of branch conductors (31) are formed by striping on the FFC flexible flat cable (3), and the branch conductors (31) are electrically connected to the corresponding conductive aluminum sheets (81) through nickel sheets (91); characterized in that, The power connection component includes a PCB board (1), a double-row wire connector (2), an FFC flexible wire (3), and an external wire (4). On the PCB board (1), there are two groups of wire pads (11) respectively connected to two FFC flexible wires (3) and a group of connector pads (12) connected to the double-row wire connector (2). Each wire pad (11) is connected to each connector pad (12) in one-to-one correspondence. The end conductors of the two FFC flexible wires (3) are respectively welded to the two groups of wire pads (11). The double-row wire connector (2) includes a connector female seat (21) fixed on the PCB board (1) and a connector male end (22) connected to the ends of two externally arranged wires (4) arranged up and down. The connector female seat (21) is inserted and matched with the connector male end (22). Inside the connector female seat (21), there are two rows of conductive terminals (23) connected to the connector pads (12) in one-to-one correspondence. The two rows of conductive terminals (23) are respectively conducted with the two groups of wire pads (11) through the connector pads (12). The gold finger ends (41) of the two external wires (4) are respectively in contact with the two rows of conductive terminals (23) to form an electrical connection. On the PCB board (1), a pad protection pressing piece (5) is fixed at each wire pad (11). The pad protection pressing piece (5) is used to press the end of the FFC flexible wire (3). One end of the connector female seat (21) is recessed to form a socket (20). On the connector female seat (21), one row of the conductive terminals (23) is arranged on each of the upper and lower sides of the socket (20). All the conductive terminals (23) have power connection feet (231) extending from the other end of the connector female seat (21) and welded to the corresponding connector pads (12). One end of the connector male end (22) protrudes to form a plug head (221) adapted to be inserted into the socket (20). On the connector male end (22), one positioning groove (24) is formed on each of the upper and lower sides of the plug head (221). The two external wires (4) are positioned and connected to the connector male end (22) one above the other, and the gold finger ends (41) on the two external wires (4) are respectively embedded in the two positioning grooves (24); A plastic part pin (6) is installed on the connector male end (22). The plastic part pin (6) is provided with a positioning post (61) extending into the connector male end (22). The external wire (4) is provided with a positioning notch (42) for positioning and cooperating with the positioning post (61); A hole (26) for an external flexible cable (4) to pass through is formed at the rear end of the positioning groove (24) on the male connector end (22). An installation groove (27) is formed at a position corresponding to the hole (26) on the outer side of one side of the male connector end (22). The installation groove (27) extends along the width direction of the socket (20). At both ends of the installation groove (27), each is vertically communicated with two holes (26) through a positioning jack (28). The plastic part pin (6) is embedded in the installation groove (27). The positioning posts (61) at both ends of the plastic part pin (6) are inserted into the corresponding positioning jacks (28) and cooperate with the positioning notch (42). Clasps (62) are formed at both ends of the plastic part pin (6). Card holes (29) that cooperate with the two clasps (62) respectively are provided on the male connector end (22).

2. The battery detection module for a new energy vehicle according to claim 1, characterized in that, The pad protection pressing piece (5) is fixed on the PCB board (1) by screws, and a positioning boss (51) is provided on the pad protection pressing piece (5). A positioning hole (13) that cooperates with the positioning boss (51) is provided on the PCB board (1).

3. The battery detection module for a new energy vehicle according to claim 1, wherein Terminal grooves (25) are arranged at intervals along the width direction of the socket (20) on the upper and lower side walls of the socket (20). Each conductive terminal (23) is correspondingly embedded in each terminal groove (25), and each conductive terminal (23) has an elastic contact part (232) bent inward in the direction of the socket (20) to contact the gold finger end (41).

4. The new energy vehicle battery detection module according to claim 1, wherein, The power connection feet (231) of all the conductive terminals (23) are arranged at intervals in a line along the width direction of the socket (20), and the power connection feet (231) of the upper row of conductive terminals (23) and the power connection feet (231) of the lower row of conductive terminals (23) are arranged alternately.

5. The battery detection module for a new energy vehicle according to claim 1, wherein, Side slots (241) are formed on the opposite side surfaces of the positioning groove (24), and a stop (242) is formed at the front end of the positioning groove (24). The two side edges of the gold finger end (41) on the external flexible cable (4) are respectively inserted into the two side slots (241), and the stop (242) is arranged along the width direction of the socket (20) and blocks the front part of the gold finger end (41).

6. The battery detection module for a new energy vehicle according to claim 1, characterized in that, A sunken groove (71) is formed on the surface of the insulating support plate (7), and the wire group (8) is positioned in the sunken groove (71).

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