Electrical connection assembly

Abstract

A first conductive part and a second conductive part are arranged in a front section area of a circuit board, and a third conductive part and a fourth conductive part are arranged in a rear section area of the circuit board so as to be aligned with the first conductive part and the second conductive part in a one-to-one mode in the front-and-back direction and directly connected and electrically conducted with the first conductive part and the second conductive part. The first connector is installed on one side of the front section area of the circuit board in the vertical direction, and the second connector is installed on the other side of the rear section area of the circuit board in the vertical direction. The projections of the first type of terminals and the second type of terminals in the second connector in the vertical direction are respectively aligned with the projections of the first type of terminals and the second type of terminals in the first connector in the vertical direction in the front-back direction, so that conductive paths are prevented from crossing, signal interference is reduced, and the reliability of the connector is improved. Through a direct connection mode, the conductive path stroke between the two is shortened, the resistance of the conductive path is reduced to improve the signal transmission quality, and the test accuracy of the test device on various parameters of the battery pack device is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to an electric connection assembly, especially to an electric connection assembly for connecting a test device and a battery pack device.

BACKGROUND

[0002] The parameters of a new energy automobile battery pack device need to be strictly detected and qualified before circulating to the market, and an electric connection assembly is needed to electrically connect the battery pack device and the test device to facilitate the testing of the parameters of the battery pack device. A prior electric connection assembly includes a circuit board, a first connector and a second connector installed on the circuit board, the first connector and the second connector each have at least two conductive terminals, and the first connector and the second connector are installed on the same surface of the circuit board. However, this design has the following defects: the two conductive terminals of the first connector and the corresponding two conductive terminals in the second connector are connected through the cross-wiring on the circuit board, which causes signal interference, voltage fluctuation and other problems due to the crossing of the wiring and other sensitive signal wires, the crossing wiring has a long travel distance, which may increase the resistance of the wiring and affect the quality of signal transmission, thereby affecting the accuracy of the parameter testing of the battery pack device.

[0003] Therefore, it is necessary to design an electric connection assembly to overcome the above problems.

UTILITY MODEL CONTENTS

[0004] To solve the problems in the background art, the utility model aims to provide an electric connection assembly in which the first conductive part and the third conductive part of the circuit board are aligned in the front-back direction and directly connected for electrical conduction, the second conductive part and the fourth conductive part are aligned in the front-back direction and directly connected for electrical conduction, the first type terminal and the second type terminal in the second connector are projected in the up-down direction and aligned with the first type terminal and the second type terminal in the first connector in the up-down direction and in the front-back direction, which avoids the crossing of the conductive path and ensures the accuracy of the parameter testing of the battery pack device by the test device.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical means:

[0006] An electric connection assembly includes:

[0007] A circuit board, a front section of the circuit board is provided with a plurality of first conductive parts and a plurality of second conductive parts along a left-right direction, a rear section of the circuit board is provided with a plurality of third conductive parts and a plurality of fourth conductive parts along the left-right direction, the plurality of first conductive parts and the plurality of third conductive parts are aligned one by one along a front-rear direction and are directly connected to be electrically conductive, the plurality of second conductive parts and the plurality of fourth conductive parts are aligned one by one along the front-rear direction and are directly connected to be electrically conductive;

[0008] A first connector, the first connector is mounted on one side of the front section of the circuit board along an up-down direction, the first connector includes a first insulating body and a plurality of first type terminals and a plurality of second type terminals provided on the first insulating body, the first insulating body has a first tail portion arranged on the circuit board and at least one first docking portion extending forward from the first tail portion beyond the front end of the circuit board, the first type terminals and the second type terminals both extend into the first docking portion and expose the first tail portion to be electrically connected with the first conductive parts and the second conductive parts respectively, the first docking portion is used to dock a test device;

[0009] A second connector, the second connector is mounted on the other side of the rear section of the circuit board along the up-down direction, the second connector includes a second insulating body and a plurality of the first type terminals and a plurality of the second type terminals provided on the second insulating body, the first type terminals and the second type terminals in the second connector are respectively aligned with the first type terminals and the second type terminals in the first connector along the up-down direction along the front-rear direction, the second insulating body has a second tail portion arranged on the circuit board and at least one second docking portion extending backward from the second tail portion beyond the rear end of the circuit board, the first type terminals and the second type terminals both extend into the second docking portion and expose the second tail portion to be electrically connected with the third conductive parts and the fourth conductive parts respectively, the second docking portion is used to dock a battery pack device;

[0010] A shielding shell, the shielding shell has a containing space, the circuit board is contained in the containing space, the first docking portion and the second docking portion respectively extend out of the front and rear ends of the shielding shell.

[0011] Further, the first connector and the second connector have the same structure, the circuit board has a virtual center axis along the left-right direction, the first connector is rotated 180 degrees around the virtual center axis and can coincide with the second connector.

[0012] Further, the shielding shell has a bottom plate, a front end of the bottom plate is bent upward to form a step, a front end of the step is bent upward to form a front plate, the front plate has a first opening for the first interface portion to extend forward, left and right sides of the front plate respectively extend backward a first side wall, a bottom of each first side wall is bent to extend a stop piece along the left and right directions, the stop piece is arranged on an upper surface of the step, the stop piece stops the left and right sides of the first insulation body from moving downward, a rear end of the shielding shell has a second opening for the second interface portion to extend backward, the bottom plate stops the second tail portion from moving downward.

[0013] Further, left and right sides of the bottom plate are bent upward to form a second side wall, the first side wall and the second side wall on the same side of the bottom plate are arranged in a staggered manner along the left and right directions and are bent to extend a first bent piece and a second bent piece which overlap each other along the left and right directions, the first bent piece and the second bent piece are respectively provided with a first through hole and a second through hole along the up and down directions, left and right sides of the circuit board are respectively provided with a mounting hole along the up and down directions, a fixing member penetrates the mounting hole, the first through hole and the second through hole on the same side along the up and down direction to fix the circuit board and the first bent piece and the second bent piece.

[0014] Further, each first side wall is provided with a lock hole, the electrical connection assembly further comprises an upper cover, the upper cover comprises a top wall, an extension wall is bent downward from left and right sides of the top wall, each extension wall is provided with a lock piece to be buckled with the lock hole, a rear wall is bent downward from a rear end of the top wall to stop the second insulation body from moving upward.

[0015] Further, a first rear plate is bent downward and extended from a rear end of the bottom plate, a reinforcing piece is connected between the bottom plate and the first rear plate.

[0016] Further, a first flange is arranged around the first insulation body, the front plate stops in front of the first flange, a second rear plate is bent along the left and right directions from a rear end of each first side wall and extends toward each other, a portion of the second rear plate which is below the bottom plate is arranged behind the first rear plate, a second flange is arranged around the second insulation body, the first rear plate and the second rear plate stop in front of the second flange.

[0017] Further, a rear stop piece is arranged on left and right sides of the second opening of the shielding shell, a stop protruding rib is arranged along the left and right directions on an upper surface of the second insulation body, the stop protruding rib is arranged in front of the second flange, the rear stop piece is arranged between the stop protruding rib and the second flange to limit the second connector in the front and rear directions.

[0018] Further, the front section and the rear section of the circuit board are respectively provided with a plurality of fifth conductive parts and a plurality of sixth conductive parts along the left-right direction, the plurality of fifth conductive parts and the plurality of sixth conductive parts are aligned and directly connected in electrical conduction along the front-rear direction, the first connector and the second connector each further include a plurality of third type terminals, the first type terminals and the third type terminals are power terminals for transmitting power, the second type terminals are signal terminals for transmitting signals, the third type terminals have a cross-sectional area greater than that of the first type terminals, in the first connector, the first insulating body has two first mating parts arranged along the left-right direction, each of the first mating parts has a first mating cavity, one of the first mating cavities is provided with a plurality of first type terminals and a part of the second type terminals, the other of the first mating cavities is provided with a plurality of third type terminals and another part of the second type terminals, the third type terminals are electrically connected with the fifth conductive parts, the second connector has the same structure as the first connector, the third type terminals of the second connector are used to be electrically connected with the sixth conductive parts.

[0019] Further, the first type terminals and the third type terminals are respectively used to transmit different current values, the first type terminals of the first connector have a first contact part accommodated in one of the first mating cavities and a first plug-in part exposed from the first tail part, the first plug-in part has only one plug-in pin inserted into the first conductive part composed of one conductive via, the third type terminals have a third contact part accommodated in the other of the first mating cavities and a third plug-in part exposed from the first tail part, the third plug-in part has two plug-in pins inserted into the fifth conductive part composed of two conductive vias in electrical conduction with each other.

[0020] Compared with the prior art, the utility model have following beneficial effect: multiple first conductive part with multiple third conductive part along front -back direction one -one alignment and direct connection electrically conductive, multiple second conductive part with multiple fourth conductive part along front -back direction one -one alignment and direct connection electrically conductive, the first type terminal and the second type terminal in the second connector along the projection of up -down direction respectively with the first type terminal and the second type terminal in the first connector along the projection of up -down direction opposite alignment along front -back direction, avoid the conductive path between first conductive part with third conductive part, the conductive path between second conductive part with fourth conductive part cross, thereby reduce the signal interference between conductive path and another conductive path, can make the conductive path travel between both sides shorten through the circuit direct connection mode, reduce the resistance of conductive path and improve the quality of signal transmission, guarantee the accuracy of each parameter test of the battery package device of the test device, through adopting the electric connection assembly between test device and the electric connection assembly between battery package device establishes electric connection, even if the electric connection assembly is damaged by multiple insertion, only need to replace the electric connection assembly, do not need to replace the whole test device, it is convenient to maintain. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the perspective view of electric connection assembly in the utility model;

[0022] Figure 2 It is the perspective view of another view of electric connection assembly in the utility model;

[0023] Figure 3 It is the cross section view of electric connection assembly along front -back direction in the utility model;

[0024] Figure 4 It is the explosion view of electric connection assembly in the utility model;

[0025] Figure 5 It is the exploded view of first connector and second connector in the utility model are installed on the circuit board and are not shielded by casing and upper cover and are not closed;

[0026] Figure 6 It is the side view of first connector, second connector installation on the circuit board in the utility model;

[0027] Figure 7 It is the plan view of first type terminal, second type terminal and third type terminal in the first connector and second connector in the utility model are electrically connected on the circuit board simultaneously.

[0028] Explanation of the drawing reference of specific embodiment:

[0029] Electric connection assembly 100 Circuit board 1 First conductive part 11 Second conductive part 12 Third conductive part 13 Fourth conductive part 14 Fifth conductive part 15 Sixth conductive part 16 Virtual central axis 17 Mounting hole 18 First connector 2 First insulating body 21 First tail part 211 First mating part 212 First mating cavity 2121 First flange 213 First type terminal 22 First contact part 221 First plug-in part 222 Second type terminal 23 Third type terminal 24 Third contact part 241 Third plug-in part 242 Second connector 3 Second insulating body 31 Second tail part 311 Second mating part 312 Second mating cavity 3121 Stop protruding rib 313 Second flange 314 Shielding shell 4 Bottom plate 41 Step 42 Front plate 43 First opening 431 First side wall 44 Stop piece 441 First bending piece 442 First through hole 4421 Locking hole 443 Second back plate 45 Back stop piece 46 Second opening 47 Second side wall 48 Second bending piece 481 Second through hole 482 First back plate 49 Accommodation space S Reinforcing piece 5 Fixing member 6 Upper cover 7 Top wall 71 Extension wall 72 Locking piece 721 Back wall 73 Front-back direction X Left-right direction Y Up-down direction Z [DETAILED DESCRIPTION]

[0030] The specific embodiments of the present application will be further described in conjunction with the accompanying drawings:

[0031] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the indicated position or component must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0032] As shown in Figure 1 , 3 An electrical connection assembly 100 for electrically connecting between a battery pack device (not shown) and a test device (not shown) in the field of new energy vehicles to facilitate testing of the battery pack device, comprising a circuit board 1, a first connector 2 mounted on one side of the front section area of the circuit board 1 in the up-down direction Z, a second connector 3 mounted on the other side of the rear section area of the circuit board 1 in the up-down direction Z, a shielding housing 4 and an upper cover 7.

[0033] As shown in Figure 4 , 7As shown, the circuit board 1 has a plurality of first conductive portions 11, a plurality of second conductive portions 12, a plurality of third conductive portions 13, a plurality of fourth conductive portions 14, a plurality of fifth conductive portions 15, and a plurality of sixth conductive portions 16. The plurality of first conductive portions 11, the plurality of second conductive portions 12, and the plurality of fifth conductive portions 15 are disposed in the front section of the circuit board 1 and arranged along the left-right direction Y. The plurality of third conductive portions 13, the plurality of fourth conductive portions 14, and the plurality of sixth conductive portions 16 are disposed in the rear section of the circuit board 1 and arranged along the left-right direction Y. The plurality of first conductive portions 11 and the plurality of third conductive portions 13 are aligned one-to-one along the front-rear direction X and electrically connected in series. The plurality of second conductive portions 12 and the plurality of fourth conductive portions 14 are aligned one-to-one along the front-rear direction X and electrically connected in series. The plurality of fifth conductive portions 15 and the plurality of sixth conductive portions 16 are aligned one-to-one along the front-rear direction X and electrically connected in series. In the present embodiment, all of the conductive portions are conductive vias. Each of the fifth conductive portions 15 and the sixth conductive portions 16 is composed of two conductive vias electrically connected to each other. Each of the first conductive portions 11, the second conductive portions 12, the third conductive portions 13, and the fourth conductive portions 14 is composed of one conductive via. In other embodiments, the number of the fifth conductive portions 15 and the sixth conductive portions 16 is not limited, as long as it is greater than the number of the first conductive portions 11 and the second conductive portions 12. The circuit board 1 has a virtual central axis 17 along the left-right direction Y. The circuit board 1 has at least one mounting hole 18 disposed on each of the left and right sides of the circuit board 1 and penetrating the circuit board 1 along the up-down direction Z. In the present embodiment, the circuit board 1 has two mounting holes 18 disposed on each of the left and right sides of the circuit board 1.

[0034] As Figures 3-7As shown, the first connector 2 is mounted on the upper surface of the front region of the circuit board 1 from top to bottom, the first connector 2 comprises a first insulating body 21 and a plurality of first type terminals 22, a plurality of second type terminals 23 and a plurality of third type terminals 24 assembled on the first insulating body 21. The first insulating body 21 has a first tail portion 211 arranged on the upper surface of the circuit board 1 and at least one first mating portion 212 extending forward from the first tail portion 211 beyond the front end of the circuit board 1, the first type terminals 22, the second type terminals 23 and the third type terminals 24 all extend into the first mating portion 212 and expose the first tail portion 211 to be electrically connected with the first conductive portion 11, the second conductive portion 12 and the fifth conductive portion 15 respectively. In this embodiment, the first insulating body 21 has two first mating portions 212 arranged in the left-right direction Y, each first mating portion 212 has a first mating cavity 2121 (of course, in other embodiments, the first mating portion 212 can be provided with only one, or three or more, which is not limited here), the first mating portion 212 is used to mate with a test device, which is a test cabinet. The first insulating body 21 is provided with a first flange 213 around the circumference, which is located at the outer circumference of the first mating portion 212 and protrudes along the circumference. In this embodiment, the first type terminals 22 and the third type terminals 24 are power terminals for transmitting power, the second type terminals 23 are signal terminals for transmitting signals, the cross-sectional area of the third type terminals 24 is larger than that of the first type terminals 22, the first type terminals 22 and the third type terminals 24 are respectively used to transmit different current values, therefore, the third type terminals 24 are used to transmit relatively larger current, and the first type terminals 22 are used to transmit relatively smaller current. In the first connector 2, a plurality of first type terminals 22 and part of second type terminals 23 are arranged in one first mating cavity 2121, a plurality of third type terminals 24 and another part of second type terminals 23 are arranged in another first mating cavity 2121, the third type terminals 24 extend into the other first mating cavity 2121 and expose the first tail portion 211 to be electrically connected with the fifth conductive portion 15, in this embodiment, the second type terminals 23 have the same shape and structure and are divided into each first mating portion 212, the second type terminals 23 in the two first mating portions 212 are located on one side of each first mating portion 212, one end of the second type terminals 23 is electrically inserted into the second conductive portion 12 of the front region of the circuit board 1.The first type terminal 22 has a first contact portion 221 accommodated in one of the first mating cavities 2121 and a first plug-in portion 222 exposed from the first tail portion 211, the first plug-in portion 222 having only one plug-in pin inserted into the first conductive portion 11. The third type terminal 24 has a third contact portion 241 accommodated in the other one of the first mating cavities 2121 and a third plug-in portion 242 exposed from the first tail portion 211, the third plug-in portion 242 having two plug-in pins inserted into the fifth conductive portion 15.

[0035] As Figures 3-7As shown, the second connector 3 is mounted on the lower surface of the rear region of the circuit board 1 from bottom to top. In the embodiment, the second connector 3 has the same structure as the first connector 2, which means that both are sockets, and in other embodiments, the same structure can also mean that both are plugs, which is not limited here. The first connector 2 is rotated 180 degrees around the virtual center axis 17 and can coincide with the second connector 3. The first connector 2 and the second connector 3 are both connectors with a total of 126 terminals. Since the total number of terminals in the embodiment is large, all terminals use plug-in pins (i.e., DIP pins) inserted into the conductive vias, and in other embodiments, surface mount technology (i.e., SMT) can be used to electrically connect the circuit board 1. The second connector 3 includes a second insulating body 31 and a plurality of first type terminals 22, a plurality of second type terminals 23, and a plurality of third type terminals 24 assembled on the second insulating body 31. The second insulating body 31 has a second tail portion 311 arranged on the lower surface of the circuit board 1 and at least one second mating portion 312 extending rearward beyond the rear end of the circuit board 1 from the second tail portion 311, and the first type terminals 22, the second type terminals 23, and the third type terminals 24 all extend into the second mating portion 312 and expose the second tail portion 311 to electrically connect with the third conductive portion 13, the fourth conductive portion 14, and the sixth conductive portion 16, respectively. In the embodiment, the second insulating body 31 has two second mating portions 312 arranged along the left-right direction Y, and each second mating portion 312 has a second mating cavity 3121 (of course, in other embodiments, the second mating portion 312 can be provided with only one, or three or more, which is not limited here), and the second mating portion 312 is used to mate with a battery pack device. By using the electrical connection assembly 100 to establish electrical connection between the test device and the battery pack device, even if the electrical connection assembly 100 is damaged after being plugged in multiple times, it only needs to be replaced, without the need to replace the entire test device, which is convenient for maintenance. The second insulating body 31 is provided with a second flange 314 in the circumferential direction, and the upper surface of the second insulating body 31 extends a stop protruding rib 313 along the left-right direction Y, the height of the stop protruding rib 313 protruding upward is less than the height of the second flange 314 protruding upward, and the stop protruding rib 313 is located in front of the second flange 314.In the embodiment, the terminal structures of the first type terminals 22, the second type terminals 23 and the third type terminals 24 in the second connector 3 are respectively the same as those of the first type terminals 22, the second type terminals 23 and the third type terminals 24 in the first connector 2, in the second connector 3, a plurality of the first type terminals 22 and part of the second type terminals 23 are arranged in one of the second mating cavities 3121, a plurality of the third type terminals 24 and another part of the second type terminals 23 are arranged in the other of the second mating cavities 3121, the third type terminals 24 extend into the other of the second mating cavities 3121 and expose the second tail portions 311 to be electrically connected with the sixth conductive portions 16. In the embodiment, the second type terminals 23 are multiple and have the same shape and structure, the second type terminals 23 are equally divided into each of the second mating portions 312, the second type terminals 23 in two of the second mating portions 312 are located on one side of each of the second mating portions 312, one end of the second type terminals 23 is electrically arranged in the fourth conductive portions 14 of the rear region of the circuit board 1, the first type terminals 22 have the first contact portions 221 arranged in one of the second mating cavities 3121 and the first plug-in portions 222 exposing the second tail portions 311, the first plug-in portions 222 have only one plug-in pin arranged in the third conductive portions 13, the third type terminals 24 have the third contact portions 241 arranged in the other of the second mating cavities 3121 and the third plug-in portions 242 exposing the second tail portions 311, the third plug-in portions 242 have two plug-in pins arranged in the sixth conductive portions 16, the projections of the first type terminals 22, the second type terminals 23 and the third type terminals 24 in the second connector 3 along the up-down direction Z are respectively aligned with the projections of the first type terminals 22, the second type terminals 23 and the third type terminals 24 in the first connector 2 along the up-down direction Z along the front-rear direction X, to avoid the conductive paths between the first conductive portions 11 and the third conductive portions 13, the conductive paths between the second conductive portions 12 and the fourth conductive portions 14, the conductive paths between the fifth conductive portions 15 and the sixth conductive portions 16 from crossing, to reduce the signal interference between the conductive paths and another conductive path, meanwhile, the direct connection can shorten the travel of the conductive paths between the two, reduce the resistance of the conductive paths and improve the quality of signal transmission, to ensure the accuracy of the test device in testing various parameters of the battery pack device.

[0036] As Figures 2-5As shown, the shielding case 4 has a receiving space S in which the circuit board 1 is received, and the first and second mating portions 212 and 312 extend out of the front and rear ends of the shielding case 4, respectively. The shielding case 4 has a bottom plate 41, the front end of which is bent upward to form a step 42, and the front end of the step 42 is bent upward to form a front plate 43 having a first opening 431 for the first mating portion 212 to extend out of. The front plate 43 is stopped in front of the first flange 213 to stop the first connector 2 from moving forward relative to the shielding case 4. A first rear plate 49 is bent downward and extends from the rear end of the bottom plate 41, and a reinforcing sheet 5 is connected between the bottom plate 41 and the first rear plate 49 to support the first rear plate 49 and ensure that it has sufficient strength. The left and right sides of the front plate 43 each extend a first side wall 44 rearward, and the bottom of each first side wall 44 is bent and extends in the left-right direction Y to form a stop sheet 441 that rests on the upper surface of the step 42 to stop the left and right sides of the first insulating body 21 from moving downward. Each first side wall 44 has a locking hole 443 formed therein to lock with the upper cover 7. Each first side wall 44 has a second rear plate 45 bent and extending in the left-right direction Y toward each other from the rear end thereof, and the portion of the second rear plate 45 that is below the bottom plate 41 is disposed behind the first rear plate 49. The first and second rear plates 49 and 45 are stopped in front of the second flange 314 to fix the second connector 3 from moving rearward relative to the shielding case 4. The rear end of the shielding case 4 has a second opening 47 for the second mating portion 312 to extend out of, and the left and right sides of the second opening 47 each has a rear stop sheet 46 formed by bending and extending forward from the end of the second rear plate 45 in the left-right direction Y. The rear stop sheet 46 is located between the stop protrusion 313 and the second flange 314 to limit the second connector 3 in the front-rear direction X, and the bottom plate 41 stops below the second tail portion 311. The left and right sides of the bottom plate 41 each are bent upward to form a second side wall 48, and the first and second side walls 44 and 48 on the same side of the bottom plate 41 are disposed offset in the left-right direction Y and bent and extend toward each other in the left-right direction Y to overlap each other. The bottom plate 41, the front plate 43, the first and second side walls 44 and 48, and the second rear plate 45 surround to form the receiving space S, and the upper end of the receiving space S is open, and the circuit board 1, the first tail portion 211, and the second tail portion 311 are received in the receiving space S from top to bottom.The first bending piece 442 and the second bending piece 481 are respectively provided with at least one first through hole 4421 and at least one second through hole 482 in the up-down direction, and in the embodiment, two first through holes 4421 and two second through holes 482 are arranged respectively, the left and right side edges of the circuit board 1 are arranged in the area formed by the superimposed first bending piece 442 and second bending piece 481, and a fixing member 6 (in the embodiment, the fixing member 6 is a screw, and in other embodiments, any component that can fix the circuit board 1 and the first bending piece 442 and the second bending piece 481 can be used, which is not limited here) is arranged to pass through the mounting hole 14, the first through hole 4421 and the second through hole 482 on the same side in the up-down direction to fix the circuit board 1 and the first bending piece 442 and the second bending piece 481, so that the circuit board 1 and the first connector 2 and the second connector 3 mounted on the circuit board 1 can be fixed with the shielding shell 4.

[0037] As shown in Figures 3-5 The upper cover 7 is buckled above the shielding shell 4, the upper cover 7 includes a top wall 71, an extension wall 72 is bent and extended downward from the left and right sides of the top wall 71, each extension wall 72 is provided with a locking piece 721 to be buckled with the locking hole 443, a rear wall 73 is bent and extended downward from the rear end of the top wall 71 to stop the upward displacement of the second insulating body 31, the upper cover 7 is buckled with the shielding shell 4 to accommodate the circuit board 1, the first tail 211 and the second tail 311, the rear wall 73 stops the upward displacement of the top surface of the second insulating body 31, which facilitates the maintenance of the components in the electrical connection assembly 100, facilitates the disassembly and replacement of components, thereby isolating the accommodation space S from the outside, thereby protecting the circuit board 1, the first connector 2 and the second connector 3 in the shielding shell 4, avoiding the short circuit of the circuit board 1, the first connector 2 and the second connector 3 caused by the falling of sundries on the circuit board 1, and avoiding the collision and damage of the circuit board 1, the first connector 2 and the second connector 3 with the outside by arranging the shielding shell 4 and the upper cover 7.

[0038] In summary, the electrical connection assembly 100 has the following advantages:

[0039] 1、The first plurality of conductive portions 11 and the second plurality of conductive portions 12 are arranged in the front section of the circuit board 1 and arranged along the left-right direction Y, the third plurality of conductive portions 13 and the fourth plurality of conductive portions 14 are arranged in the rear section of the circuit board 1 and arranged along the left-right direction Y, the first plurality of conductive portions 11 and the third plurality of conductive portions 13 are aligned along the front-rear direction X and directly connected in electrical conduction, the second plurality of conductive portions 12 and the fourth plurality of conductive portions 14 are aligned along the front-rear direction X and directly connected in electrical conduction, the first connector 2 is mounted on the upper surface of the front section of the circuit board 1 from top to bottom, the first mating portion 212 is used to mate with the test device, the second connector 3 is mounted on the lower surface of the rear section of the circuit board 1 from bottom to top, the second mating portion 312 is used to mate with the battery pack device, the projections of the first type terminal 22, the second type terminal 23 and the third type terminal 24 in the second connector 3 along the up-down direction Z are respectively aligned with the projections of the first type terminal 22, the second type terminal 23 and the third type terminal 24 in the first connector 2 along the up-down direction Z along the front-rear direction X, avoiding the conductive paths between the first conductive portion 11 and the third conductive portion 13, the conductive paths between the second conductive portion 12 and the fourth conductive portion 14, and the conductive paths between the fifth conductive portion 15 and the sixth conductive portion 16 from crossing, thereby reducing signal interference between the conductive paths and another conductive path, while the direct connection can shorten the conductive path distance between the two, reduce the resistance of the conductive path and improve the quality of signal transmission, ensure the accuracy of the test device in testing various parameters of the battery pack device, and establish electrical connection between the test device and the battery pack device by using the electrical connection assembly 100. Even if the electrical connection assembly 100 is damaged after being inserted multiple times, only the electrical connection assembly 100 needs to be replaced, without the need to replace the entire test device, facilitating maintenance.

[0040] 2、The first side wall 44 and the second side wall 48 on the same side of the bottom plate 41 are arranged in the left-right direction Y and bent towards each other along the left-right direction Y, the first bent piece 442 and the second bent piece 481 are overlapped, the first bent piece 442 and the second bent piece 481 are respectively provided with the first through hole 4421 and the second through hole 482 along the up-down direction, and the fixing member 6 passes through the mounting hole 14, the first through hole 4421 and the second through hole 482 on the same side along the up-down direction to fix the circuit board 1, the first bent piece 442 and the second bent piece 481, ensuring that the circuit board 1 and the first connector 2 and the second connector 3 mounted on the circuit board 1 can be fixed with the shielding shell 4.

[0041] 3. The first rear plate 49 is bent downwardly and extends from the rear end of the bottom plate 41, and the reinforcing sheet 5 is connected between the bottom plate 41 and the first rear plate 49, and the first rear plate 49 is supported by the reinforcing sheet 5 to ensure that the first rear plate 49 has sufficient strength.

[0042] 4. The upper cover 7 comprises a top wall 71, and an extension wall 72 is bent downwardly and extends from each of the left and right sides of the top wall 71, each of the extension walls 72 is provided with a locking piece 721 to be locked with the locking hole 443, and a rear wall 73 is bent downwardly and extends from the rear end of the top wall 71 to prevent the second insulating body 31 from being displaced upwardly, the upper cover 7 is locked with the shielding shell 4 to accommodate the circuit board 1, the first tail part 211 and the second tail part 311, the rear wall 73 prevents the top surface of the second insulating body 31 from being displaced upwardly, which facilitates the maintenance of the components in the electrical connection assembly 100, facilitates the disassembly and replacement of parts, thereby isolates the accommodating space S from the outside, thereby protects the circuit board 1, the first connector 2 and the second connector 3 in the shielding shell 4, avoids the foreign matters from falling on the circuit board 1 to cause the short circuit of the circuit board 1, the first connector 2 and the second connector 3, and avoids the collision and damage of the circuit board 1, the first connector 2 and the second connector 3 with the outside by arranging the shielding shell 4 and the upper cover 7.

[0043] The above detailed description is only for the preferred embodiments of the present application, and does not limit the patent scope of the present application, therefore, any equivalent technical changes made according to the content of the present application and drawings are included in the patent scope of the present application.

Claims

1. An electrical connection assembly, characterized in that, include: A circuit board, wherein the front section of the circuit board is provided with a plurality of first conductive parts and a plurality of second conductive parts along the left-right direction, and the rear section of the circuit board is provided with a plurality of third conductive parts and a plurality of fourth conductive parts along the left-right direction, wherein the plurality of first conductive parts and the plurality of third conductive parts are aligned one-to-one along the front-back direction and are directly connected and electrically conductive, and the plurality of second conductive parts and the plurality of fourth conductive parts are aligned one-to-one along the front-back direction and are directly connected and electrically conductive. A first connector is mounted vertically on one side of the front section of the circuit board. The first connector includes a first insulating body and a plurality of first-type terminals and a plurality of second-type terminals disposed on the first insulating body. The first insulating body has a first tail portion disposed on the circuit board and at least one first mating portion extending forward from the first tail portion beyond the front end of the circuit board. The first-type terminals and the second-type terminals both extend into the first mating portion and expose the first tail portion to be electrically connected to the first conductive portion and the second conductive portion, respectively. The first mating portion is used to mate with a test device. A second connector is mounted vertically on the other side of the rear section of the circuit board. The second connector includes a second insulating body and a plurality of first-type terminals and a plurality of second-type terminals disposed on the second insulating body. The vertical projections of the first-type terminals and second-type terminals in the second connector are aligned with the vertical projections of the first-type terminals and second-type terminals in the first connector in the front-back direction. The second insulating body has a second tail portion disposed on the circuit board and at least one second mating portion extending rearward from the second tail portion beyond the rear end of the circuit board. The first-type terminals and second-type terminals both extend into the second mating portion and expose the second tail portion to be electrically connected to the third conductive portion and the fourth conductive portion, respectively. The second mating portion is used to connect to a battery pack device. A shielding housing having an accommodating space, wherein the circuit board is accommodated in the accommodating space, and the first mating portion and the second mating portion extend from the front and rear ends of the shielding housing, respectively.

2. The electrical connection assembly as claimed in claim 1, characterized in that: The first connector and the second connector have the same structure. The circuit board has a virtual central axis along the left-right direction. The first connector can be rotated 180 degrees around the virtual central axis to coincide with the second connector.

3. The electrical connection assembly as claimed in claim 1, characterized in that: The shielding shell has a base plate, the front end of which is bent upward to form a step, and the front end of the step is bent upward to form a front plate. The front plate has a first opening for the first mating part to extend forward. A first sidewall extends backward from the left and right sides of the front plate. A stop plate extends backward from the bottom of each first sidewall in a left-right direction. The stop plate rests on the upper surface of the step and prevents the left and right sides of the first insulating body from moving downward. The rear end of the shielding shell has a second opening for the second mating part to extend backward. The base plate blocks the lower part of the second tail.

4. The electrical connection assembly as claimed in claim 3, characterized in that: The left and right sides of the base plate are bent upward to form a second sidewall. The first sidewall and the second sidewall on the same side of the base plate are offset in the left and right direction and are bent and extended towards each other in the left and right direction with an overlapping first bent piece and a second bent piece. The first bent piece and the second bent piece are respectively provided with a first through hole and a second through hole in the up and down direction. The left and right sides of the circuit board are respectively provided with mounting holes in the up and down direction. A fastener passes through the mounting hole, the first through hole and the second through hole on the same side in the up and down direction to fix the circuit board to the first bent piece and the second bent piece.

5. The electrical connection assembly as claimed in claim 3, characterized in that: Each of the first sidewalls has a locking hole. The electrical connection assembly also includes a top cover. The top cover includes a top wall. An extension wall is bent downward from the left and right sides of the top wall. Each extension wall is provided with a locking piece to engage with the locking hole. A rear wall is bent downward from the rear end of the top wall to prevent the second insulating body from moving upward.

6. The electrical connection assembly as claimed in claim 3, characterized in that: A first rear plate extends downward from the rear end of the base plate, and a reinforcing sheet connects the base plate and the first rear plate.

7. The electrical connection assembly as claimed in claim 6, characterized in that: The first insulating body has a first flange circumferentially arranged, the front plate is stopped in front of the first flange, each of the first sidewalls extends from its rear end in a left-right direction toward each other with a second rear plate, the portion of the second rear plate extending downward beyond the bottom plate is arranged behind the first rear plate, the second insulating body has a second flange circumferentially arranged, and the first rear plate and the second rear plate are stopped in front of the second flange.

8. The electrical connection assembly as claimed in claim 7, characterized in that: The shielding housing has a rear baffle on each of the left and right sides of the second opening. The upper surface of the second insulating body has a stop rib extending in the left and right direction. The stop rib is located in front of the second flange. The rear baffle is located between the stop rib and the second flange to limit the second connector in the front and rear direction.

9. The electrical connection assembly as claimed in claim 1, characterized in that: The circuit board has a plurality of fifth conductive parts and a plurality of sixth conductive parts in the front and rear regions along the left and right directions, respectively. The plurality of fifth conductive parts and the plurality of sixth conductive parts are aligned one by one in the front and back directions and are directly connected and electrically conductive. The first connector and the second connector also include a plurality of third type terminals. The first type terminals and the third type terminals are power terminals for transmitting power, and the second type terminals are signal terminals for transmitting signals. The cross-sectional area of ​​the third type terminals is larger than that of the first type terminals. In the first connector, the first insulating body has two first mating parts spaced apart in the left and right directions. Each first mating part has a first mating cavity. One first mating cavity has a plurality of first type terminals and a portion of second type terminals. The other first mating cavity has a plurality of third type terminals and another portion of second type terminals. The third type terminals are electrically connected to the fifth conductive parts. The second connector has the same structure as the first connector. The third type terminals of the second connector are used to be electrically connected to the sixth conductive parts.

10. The electrical connection assembly as claimed in claim 9, characterized in that: The first type of terminal and the third type of terminal are used to transmit different current values. The first type of terminal of the first connector has a first contact portion housed in one of the first mating cavities and a first plug portion exposed at the first tail. The first plug portion has only one plug pin inserted into the first conductive portion formed by a conductive through hole. The third type of terminal has a third contact portion housed in another of the first mating cavities and a third plug portion exposed at the first tail. The third plug portion has two plug pins inserted into the fifth conductive portion formed by two electrically connected conductive through holes.

Images