Electrical connector assembly, battery management system and vehicle

Abstract

The utility model belongs to the technical field of connectors, and discloses an electric connector assembly, a battery management system and a vehicle. According to the electrical connector assembly, the conductive connecting terminal is fixed on the first connecting shell. The flexible acquisition unit comprises a flexible acquisition body and a welding head which are connected with each other. The welding head is welded with the conductive connection end of the conductive connection terminal. The positioning structure comprises a first positioning structure arranged on the first connecting shell and a second positioning structure arranged on the flexible collecting body, and the first positioning structure and the second positioning structure are positioned in an inserting or abutting mode. The assembly automation degree can be effectively improved, the production efficiency and the assembly efficiency can be effectively improved, and the production cost and the labor cost can be effectively reduced; and secondly, the assembly precision can be effectively improved, so that the defect rate of the electrical connector assembly can be effectively reduced, and the quality of the electrical connector assembly is stable.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to an electrical connector assembly, a battery management system and a vehicle. Background Art

[0002] In a power battery, a battery management system is responsible for collecting voltage, temperature signals, etc. of battery cells, and monitoring and managing the working dynamics of the battery cells in real time according to the collected voltage, temperature signals, etc. Therefore, the working performance of the battery management system will directly affect the collection of voltage, temperature signals, etc. of the battery cells, as well as the service life of the battery cells, etc., which is of great significance to the power battery.

[0003] At present, in the prior art, for the battery management system of battery cells, it mainly uses FPC (Flexible Printed Circuit; flexible circuit board) or FFC (Flexible Flat Cable; flexible flat cable) as the main body for collecting voltage, temperature signals, etc. of the battery cells, and the battery cells provide electrical energy for the FPC and FFC; a controller is used to receive and obtain the voltage of the battery cells, receive temperature signals, etc., and perform intelligent management on the battery cells according to the voltage, temperature signals, etc.; an electrical connector is used as the connection medium between the main body and the controller. Among them, the electrical connector usually adopts a crimp terminal type connector. By crimping the connection head of the FPC / FFC with the terminal of the electrical connector, after crimping, the terminal of the electrical connector is manually inserted into the connection shell of the electrical connector to enable the main body and the controller to form an electrical connection loop.

[0004] However, by crimping the connection head of the FPC / FFC with the terminal of the electrical connector, it is necessary to add the process of crimping the terminal of the electrical connector with the connection head of the FPC / FFC. And because the FPC and FFC are relatively soft, after crimping, it is necessary to manually insert the terminal of the electrical connector into the connection shell of the electrical connector, resulting in low automation, low assembly efficiency, high labor cost, and poor assembly quality. Summary of the Utility Model

[0005] The purpose of the utility model is to provide an electrical connector assembly, a battery management system and a vehicle to solve the above problems existing in the process of assembling FPC / FFC to an electrical connector in the prior art.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The electrical connector assembly includes:

[0008] An electrical connector, including a first connection shell and a conductive connection terminal, the conductive connection terminal is fixed to the first connection shell;

[0009] The flexible acquisition unit includes a flexible acquisition body and a welding head which are connected. The welding head is welded to the conductive connection end of the conductive connection terminal.

[0010] The positioning structure includes a first positioning structure provided on the first connection shell and a second positioning structure provided on the flexible acquisition body. The first positioning structure and the second positioning structure are positioned by insertion or abutment.

[0011] As a preferred solution of the above electrical connector assembly, the first positioning structure includes positioning posts, and the second positioning structure includes positioning holes. The positioning posts are inserted into the positioning holes.

[0012] As a preferred solution of the above electrical connector assembly, the number of the positioning holes and the positioning posts is multiple, and the multiple positioning holes and the multiple positioning posts are arranged in one-to-one correspondence.

[0013] As a preferred solution of the above electrical connector assembly, the electrical connector further includes a second connection shell. The second connection shell is detachably connected to the first connection shell and forms a protection cavity between the second connection shell and the first connection shell. The conductive connection terminal is located in the protection cavity, and at least part of the flexible acquisition body extends out of the protection cavity.

[0014] As a preferred solution of the above electrical connector assembly, the first connection shell is provided with a first clamping structure, and the second connection shell is provided with a second clamping structure. The first clamping structure and the second clamping structure are clamped and matched.

[0015] As a preferred solution of the above electrical connector assembly, the first connection shell is further provided with an elastic locking portion. When the first connection shell is inserted into an external electrical connection structure, the elastic locking portion is inserted into the external electrical connection structure and elastically abuts against the external electrical connection structure.

[0016] As a preferred solution of the above electrical connector assembly, the elastic locking portion is provided with a clamping ear. When the elastic locking portion is inserted into the external electrical connection structure and elastically abuts against the external electrical connection structure, the clamping ear is clamped in the external electrical connection structure.

[0017] As a preferred solution of the above electrical connector assembly, the flexible acquisition unit is a flexible printed circuit board or a flexible flat cable.

[0018] The number of the conductive connection terminals and the welding heads is multiple, and the multiple conductive connection terminals and the multiple welding heads are arranged in one-to-one correspondence.

[0019] The battery management system includes the above electrical connector assembly.

[0020] A vehicle, including a battery module, further includes the above-mentioned battery management system, and the flexible acquisition body is electrically connected to the battery cells of the battery module.

[0021] Advantages of the present utility model:

[0022] The present utility model provides an electrical connector assembly, a battery management system and a vehicle. Among them, the electrical connector assembly includes an electrical connector, a flexible acquisition unit and a positioning structure. Among them, the electrical connector includes a first connection shell and a conductive connection terminal, and the conductive connection terminal is fixed to the first connection shell. The flexible acquisition unit includes a connected flexible acquisition body and a welding head, and the welding head is welded to the conductive connection end of the conductive connection terminal. The positioning structure includes a first positioning structure provided on the first connection shell and a second positioning structure provided on the flexible acquisition body, and the first positioning structure and the second positioning structure are positioned by plugging or abutting.

[0023] The first connection shell, the conductive connection terminal and the flexible acquisition unit of the electrical connector assembly are independent of each other. When assembling and forming the electrical connector assembly, first fix the installation position of the first connection shell, and then position the relative positions of the first connection shell and the flexible acquisition body by plugging or abutting through the first positioning structure and the second positioning structure, so that the welding head is aligned with the conductive connection terminal. After the welding head is aligned with the conductive connection terminal, weld the welding head and the conductive connection end to assemble and form the first connection shell, the conductive connection terminal and the flexible acquisition unit.

[0024] Since the flexible acquisition unit is relatively soft, the relative positions of the first connection shell and the flexible acquisition body are positioned by plugging or abutting through the first positioning structure and the second positioning structure, so that a welding gun can be directly driven by an automated device such as a robotic arm to weld the welding head and the conductive connection end, thereby effectively improving the degree of assembly automation, effectively improving the assembly efficiency, and effectively improving the assembly accuracy.

[0025] Secondly, connecting the welding head and the conductive connection end by welding can effectively simplify the manufacturing process of the conductive connection terminal compared with the prior art of connecting the welding head and the conductive connection end by crimping, thereby effectively reducing the production cost and effectively improving the production efficiency.

[0026] Therefore, the electrical connector assembly can effectively improve the degree of assembly automation, effectively improve the production efficiency and assembly efficiency, and effectively reduce the production cost and labor cost; secondly, it can effectively improve the assembly accuracy, thereby effectively reducing the defective rate of the electrical connector assembly and making the quality of the electrical connector assembly stable. Description of the drawings

[0027] Figure 1It is a schematic structural diagram of an electrical connector assembly provided by a specific embodiment of the present utility model;

[0028] Figure 2 It is a partial schematic structural diagram of an electrical connector of an electrical connector assembly provided by a specific embodiment of the present utility model;

[0029] Figure 3 It is a partial schematic structural diagram of an electrical connector assembly provided by a specific embodiment of the present utility model;

[0030] Figure 4 It is a schematic structural diagram of a flexible acquisition unit of an electrical connector assembly provided by a specific embodiment of the present utility model;

[0031] Figure 5 It is a schematic structural diagram of a conductive connection terminal of an electrical connector assembly provided by a specific embodiment of the present utility model;

[0032] Figure 6 It is a partial schematic structural diagram of an electrical connector assembly provided by other embodiments of the present utility model;

[0033] Figure 7 It is a partial schematic structural diagram of a conductive connection terminal of an electrical connector assembly provided by a specific embodiment of the present utility model.

[0034] In the figure:

[0035] 1. Electrical connector;

[0036] 11. First connection shell; 111. Positioning post; 112. Limiting member; 1121. First limiting portion; 1122. Second limiting portion; 113. Elastic locking portion; 1131. Elastic body; 1132. Clamping ear; 11321. First guiding surface; 1133. Handle portion;

[0037] 12. Conductive connection terminal; 121. First conductive connection end; 1211. Conductive connection body; 1212. Elastic piece; 122. Second conductive connection end;

[0038] 13. Second connection shell;

[0039] 14. Second clamping structure; 141. First clamping portion; 142. First clamping hole;

[0040] 15. Second clamping portion;

[0041] 2. Flexible acquisition unit; 21. Flexible acquisition body; 211. Positioning hole; 212. First end face; 213. Second end face; 22. Welding head. Specific embodiments

[0042] The present utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only for explaining the present utility model and not for limiting the present utility model. In addition, it should be noted that for the sake of description, only the parts related to the present utility model rather than all the structures are shown in the drawings.

[0043] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0044] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over", and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under", and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0045] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meanings.

[0046] In the current prior art, for the battery management system used in battery cells, it mainly uses FPC (Flexible Printed Circuit; flexible circuit board) or FFC (Flexible Flat Cable; flexible flat cable) as the main body for collecting voltage, temperature signals, etc. of the battery cells, and the battery cells provide electrical energy for the FPC and FFC; a controller is used to receive and obtain the voltage of the battery cells, receive temperature signals, etc., and perform intelligent management on the battery cells based on the voltage, temperature signals, etc.; an electrical connector is used as the connection medium between the main body and the controller. Among them, the electrical connector usually adopts a crimp terminal type connector. By crimping the connection head of the FPC / FFC with the terminal of the electrical connector, after crimping, the terminal of the electrical connector is manually inserted into the connection shell of the electrical connector to enable the main body and the controller to form an electrical connection loop. However, by crimping the connection head of the FPC / FFC with the terminal of the electrical connector, it is necessary to add the process of crimping the terminal of the electrical connector with the connection head of the FPC / FFC, and since the FPC and FFC are relatively soft, after crimping, it is necessary to manually insert the terminal of the electrical connector into the connection shell of the electrical connector, resulting in low automation, low assembly efficiency, high labor cost, and poor assembly quality.

[0047] As Figures 1-6 shown, the present utility model provides an electrical connector assembly, which includes an electrical connector 1, a flexible acquisition unit 2, and a positioning structure. Among them, the electrical connector 1 includes a first connection shell 11 and a conductive connection terminal 12. The first conductive connection end 121 is fixed to the first connection shell 11. The flexible acquisition unit 2 includes a connected flexible acquisition body 21 and a welding head 22, and the welding head 22 is welded to the conductive connection end of the conductive connection terminal 12. The positioning structure includes a first positioning structure provided on the first connection shell 11 and a second positioning structure provided on the flexible acquisition body 21, and the first positioning structure and the second positioning structure are inserted and positioned or abutted and positioned.

[0048] The first connection shell 11, the conductive connection terminal 12, and the flexible acquisition unit 2 of the electrical connector assembly are independent of each other. When assembling and forming the electrical connector assembly, first fix the installation position of the first connection shell 11, and then position the relative positions of the first connection shell 11 and the flexible acquisition body 21 in a manner of inserting and positioning or abutting and positioning the first positioning structure and the second positioning structure, so that the welding head 22 is aligned with the conductive connection end. When the welding head 22 is aligned with the conductive connection end, the welding head 22 and the conductive connection end are welded to realize the assembly and formation of the first connection shell 11, the conductive connection terminal 12, and the flexible acquisition unit 2.

[0049] Since the flexible acquisition unit 2 is relatively soft, the relative positions of the first connection shell 11 and the flexible acquisition body 21 are positioned by plugging and positioning or abutting and positioning through the first positioning structure and the second positioning structure, so that the welding head 22 can be directly welded to the conductive connection end by an automated device such as a robotic arm, thereby effectively improving the degree of assembly automation, effectively improving the assembly efficiency, and effectively improving the assembly accuracy.

[0050] Secondly, connecting the welding head 22 and the conductive connection end by welding can effectively simplify the manufacturing process of the conductive connection terminal 12 compared with the prior art of connecting the welding head and the conductive connection end by crimping, thereby effectively reducing the production cost and effectively improving the production efficiency.

[0051] Thus, the electrical connector assembly can effectively improve the degree of assembly automation, effectively improve the production efficiency and assembly efficiency, and effectively reduce the production cost and labor cost; secondly, it can effectively improve the assembly accuracy, thereby effectively reducing the rejection rate of the electrical connector assembly and making the quality of the electrical connector assembly stable.

[0052] Among them, the conductive connection terminal 12 includes two conductive connection ends, which are the first conductive connection end 121 and the second conductive connection end 122 respectively. One conductive connection end fixedly connected to the first connection shell 11 is the first conductive connection end 121. One conductive connection end welded to the welding head 22 is the second conductive connection end 122.

[0053] In this embodiment, the first conductive connection end 121 is plugged and fixed to the first connection shell 11.

[0054] It can be understood that when assembling and forming the electrical connector assembly, the conductive connection terminal 12 is first plugged and fixed, and then the relative positions of the first connection shell 11 and the flexible acquisition body 21 are positioned by plugging and positioning or abutting and positioning through the first positioning structure and the second positioning structure, and then the welding head 22 and the second conductive connection end 122 are welded. Since the conductive connection terminal 12 has good hardness, when assembling and forming the first conductive connection end 121 and the first connection shell 11, the first conductive connection end 121 can be directly plugged and fixed to the first connection shell 11 by an automated device such as a robotic arm, thereby further improving the degree of assembly automation, further improving the assembly efficiency, and further improving the assembly accuracy.

[0055] Specifically, as Figure 7As shown, the first conductive connection end 121 includes a conductive connection body 1211 and an elastic piece 1212 obliquely arranged on the outer periphery of the conductive connection body 1211, and the elastic piece 1212 is located at one end of the conductive connection body 1211 away from the second conductive connection end 122. The first connection shell 11 is provided with a communicating jack and a second card hole. During the process of inserting the conductive connection body 1211 into the jack, the elastic piece 1212 is squeezed and at least partially attached to the outer periphery of the conductive connection body 1211. When the conductive connection body 1211 is inserted in place, the elastic piece 1212 is snapped into the second card hole.

[0056] It is arranged in this way to realize inserting and fixing the first conductive connection end 121 to the first connection shell 11. It can be understood that after the first conductive connection end 121 is inserted and fixed to the first connection shell 11, it cannot be separated from the first connection shell 11.

[0057] In other embodiments, the first conductive connection end 121 can also be arranged to be embedded in the first connection shell 11. That is, during the manufacturing process of the first connection shell 11, the first conductive connection end 121 is directly formed on the first connection shell 11. It is arranged in this way, which can also improve the degree of automation, improve the assembly efficiency, and improve the assembly accuracy.

[0058] Among them, as Figures 2-5 shown, the first positioning structure includes a positioning post 111, the second positioning structure includes a positioning hole 211, and the positioning post 111 is inserted into the positioning hole 211. It is arranged in this way to realize quickly and accurately positioning the relative positions of the first connection shell 11 and the flexible acquisition body 21, so that the welding head 22 is opposite to the second conductive connection end 122, which is convenient for welding.

[0059] It can be understood that since the texture of the flexible acquisition unit 2 is relatively soft, the positioning hole 211 is usually arranged on the flexible acquisition body 21.

[0060] Specifically, the positioning hole 211 is set as a round hole, and the positioning post 111 is a cylinder. As Figures 2-4 shown, the number of the positioning holes 211 and the positioning posts 111 are both set to be multiple, and the multiple positioning holes 211 and the multiple positioning posts 111 are arranged in one-to-one correspondence. It can further improve the accuracy of positioning the relative positions of the first connection shell 11 and the flexible acquisition body 21. In this embodiment, as Figures 2-4 shown, the number of the positioning holes 211 is exemplarily set to be six, and the six positioning holes 211 are spaced along the width direction of the flexible acquisition body 21.

[0061] In other embodiments, the positioning hole 211 may also be set as an oblong hole, etc. Correspondingly, the positioning post 111 is an oblong post. By providing an oblong hole and an oblong post, the relative positions of the first connection shell 11 and the flexible acquisition body 21 can also be quickly and accurately positioned, so that the welding head 22 is aligned with the second conductive connection end 122, facilitating welding.

[0062] In other embodiments, as Figure 6 shown, the first positioning structure includes two spaced-apart limiting members 112 disposed opposite to each other. The limiting member 112 includes a first limiting portion 1121 and a second limiting portion 1122 that are perpendicularly distributed. The second positioning structure includes a first end face 212 of the flexible acquisition body 21, and two second end faces 213 that are perpendicularly and adjacently distributed on the flexible acquisition body 21 with respect to the first end face 212. The welding head 22 is connected to the first end face 212. The two limiting members 112 are provided in one-to-one correspondence with the two second end faces 213. When the first end face 212 abuts against the two first limiting portions 1121, and each second end face 213 abuts against the corresponding second limiting portion 1122, the welding head 22 is aligned with the second conductive connection end 122. The relative positions of the first connection shell 11 and the flexible acquisition body 21 can also be quickly and accurately positioned, so that the welding head 22 is aligned with the second conductive connection end 122, facilitating welding. Among them, the first limiting portion 1121 and the second limiting portion 1122 are connected and perpendicularly distributed. Or, the first limiting portion 1121 and the second limiting portion 1122 are spaced apart and perpendicularly distributed.

[0063] In this embodiment, after the welding head 22 is aligned with the second conductive connection end 122, the welding head 22 and the second conductive connection end 122 are welded by laser welding.

[0064] Specifically, laser welding is a method of welding by using the heat generated by bombarding the welded part with a focused laser beam as the energy source. Due to the optical properties of the laser such as refraction and focusing, laser welding is very suitable for welding of micro parts and parts with poor accessibility; and laser welding also has the characteristics of low heat input, small welding deformation, and not being affected by the electromagnetic field.

[0065] In other embodiments, after the welding head 22 is aligned with the second conductive connection end 122, the welding head 22 and the second conductive connection end 122 can also be welded by fusion welding.

[0066] Specifically, in fusion welding, during the welding process, the welding joint is heated to the molten state. Under the action of the temperature field, gravity, etc., without applying pressure, the molten liquid of the melted welding head 22 and the second conductive connection end 122 is mixed. After the temperature decreases, the mixed molten liquid solidifies, and the welding head 22 and the second conductive connection end 122 are welded.

[0067] Among them, as Figure 1As shown, the electrical connector 1 further includes a second connection housing 13. The second connection housing 13 is detachably connected to the first connection housing 11 and forms a protection cavity between the second connection housing 13 and the first connection housing 11. The conductive connection terminal 12 is located in the protection cavity, and at least a part of the flexible collection body 21 extends out of the protection cavity. With such a setting, it is possible to prevent dust from entering the conductive connection terminal 12, and it is also possible to prevent dust from entering the welding part between the welding head 22 and the second conductive connection end 122. Specifically, after the welding head 22 and the second conductive connection end 122 are welded, the second connection housing 13 is connected to the first connection housing 11. Specifically, when the second connection housing 13 is connected to the first connection housing 11, the second connection housing 13 can also be directly driven by an automated device such as a robotic arm to be connected to the first connection housing 11, thereby further improving the degree of assembly automation, and also further improving the assembly efficiency and assembly accuracy.

[0068] Thus, when the electrical connector assembly is assembled and formed, the first conductive connection end 121 can be directly inserted and fixed into the first connection housing 11 by an automated device such as a robotic arm, the welding head 22 can be directly driven by an automated device such as a robotic arm to be welded to the second conductive connection end 122, and the second connection housing 13 can also be directly driven by an automated device such as a robotic arm to be connected to the first connection housing 11. This effectively improves the overall degree of assembly automation, and also improves the assembly efficiency and assembly accuracy.

[0069] Specifically, in this embodiment, a part of the flexible collection body 21 is located in the protection cavity. With such a setting, it is possible to both prevent dust from entering the part of the flexible collection body 21 distributed in the protection cavity and support the part of the flexible collection body 21 distributed in the protection cavity, so as to reduce the risk that the connection part between the flexible collection body 21 and the welding head 22 is bent or even broken, thereby effectively improving the service life of the flexible collection unit 2.

[0070] Among them, as Figures 1-3 shown, the first connection housing 11 is further provided with an elastic locking part 113. When the first connection housing 11 is inserted into an external electrical connection structure, the elastic locking part 113 is inserted into the external electrical connection structure and elastically abuts against the external electrical connection structure. Specifically, when the first connection housing 11 is inserted into the external electrical connection structure, the elastic locking part 113 is close to the first connection housing 11 and is inserted into the external electrical connection structure. After the first connection housing 11 is inserted into the external electrical connection structure, the elastic restoring force of the elastic locking part 113 drives the elastic locking part 113 to move away from the first connection housing 11 and elastically abut against the external electrical connection structure. Thereby, the connection reliability between the first connection housing 11 and the external electrical connection structure can be effectively improved.

[0071] Preferably, as Figures 1-3As shown, the number of elastic locking portions 113 is two, and the two elastic locking portions 113 are symmetrically distributed on both sides of the first connection shell 11. When the first connection shell 11 is inserted into an external electrical connection structure, both of the two elastic locking portions 113 are inserted into the external electrical connection structure and elastically abutted against the external electrical connection structure. Specifically, when the first connection shell 11 is inserted into the external electrical connection structure, the two elastic locking portions 113 approach each other and are both inserted into the external electrical connection structure. After the first connection shell 11 is properly inserted into the external electrical connection structure, the elastic restoring force of the elastic locking portion 113 drives the two elastic locking portions 113 to move away from each other and elastically abut against the external electrical connection structure respectively. Thereby, the connection reliability between the first connection shell 11 and the external electrical connection structure can be effectively improved.

[0072] Specifically, as Figures 1-3 shown, the elastic locking portion 113 is provided with a clamping ear 1132. When the elastic locking portion 113 is inserted into the external electrical connection structure and elastically abutted against the external electrical connection structure, the clamping ear 1132 is clamped inside the external electrical connection structure. It can be understood that when the two clamping ears 1132 are respectively clamped inside the external electrical connection structure, the relative position between the first connection shell 11 and the external electrical connection structure is locked. Therefore, with such a setting, the connection reliability between the first connection shell 11 and the external electrical connection structure can be further improved, and the first connection shell 11 can be prevented from detaching from the external electrical connection structure.

[0073] Furthermore, as Figures 1-3 shown, the elastic locking portion 113 further includes an elastic body 1131, and the clamping ear 1132 is connected to the elastic body 1131. It can be understood that when the first connection shell 11 is inserted into the external electrical connection structure, the two elastic bodies 1131 approach each other and are both inserted into the external electrical connection structure. After the first connection shell 11 is properly inserted into the external electrical connection structure, the elastic restoring force of the elastic body 1131 drives the two elastic locking portions 113 to move away from each other and elastically abut against the external electrical connection structure respectively, and drives the two clamping ears 1132 to be respectively clamped inside the external electrical connection structure.

[0074] Furthermore, as Figures 1-3 shown, the two clamping ears 1132 are located outside the two elastic bodies 1131. To ensure that the clamping ears 1132 can be effectively clamped inside the external electrical connection structure.

[0075] Preferably, as Figure 2 and Figure 3 shown, the clamping ear 1132 is provided with a first guiding surface 11321, and the first guiding surface 11321 is used to guide the insertion of the external electrical connection structure and the first connection shell 11, and is also used to guide the insertion of the external electrical connection structure and the elastic body 1131. To improve the insertion efficiency of the external electrical connection structure and the first connection shell 11.

[0076] Optionally, asFigures 1-3 As shown, the elastic locking portion 113 further includes a handle portion 1133 provided on the elastic body 1131. By grasping the two handle portions 1133 to approach each other, the two elastic bodies 1131 are driven to elastically deform and approach each other, so as to facilitate the insertion or detachment of an external electrical connection structure into or from the first connection housing 11.

[0077] It can be understood that other types of locking structures can also be provided on the external electrical connection structure and / or the first connection housing 11 for locking or unlocking the relative positions of the external electrical connection structure and the first connection housing 11.

[0078] Specifically, the first connection housing 11 is further provided with a female socket hole communicating with the protection cavity, and the female socket hole is used for plugging in an external electrical connection structure; when the external electrical connection structure is plugged into the female socket hole, the pins of the external electrical connection structure are in contact with the conductive connection terminals 12. Specifically, when the external electrical connection structure is plugged into the female socket hole, the pins of the external electrical connection structure are in contact with the first conductive connection end 121. With such a setting, the electrical device connected to the external electrical connection structure is electrically connected to the flexible acquisition unit 2.

[0079] Specifically, in this embodiment, when the external electrical connection structure is plugged into the female socket hole, the external electrical connection structure and the flexible acquisition unit 2 are respectively located on both sides of the first connection housing 11.

[0080] Specifically, in this embodiment, the external electrical connection structure is exemplarily set as a male plug. That is, when the male plug is plugged into the female socket hole, the two elastic locking portions 113 approach each other and are both plugged into the male plug. After the male plug is plugged into the female socket hole, the elastic restoring force of the elastic locking portion 113 drives the two elastic locking portions 113 to move away from each other and elastically abut against the male plug respectively, and the two latching ears 1132 are respectively latched in the male plug. The pins of the male plug are in contact with the first conductive connection end 121. To realize the electrical connection between the electrical device connected to the male plug and the flexible acquisition unit 2.

[0081] Optionally, as Figures 1-3 shown, the first connection housing 11 is provided with a first latching structure, and the second connection housing 13 is provided with a second latching structure, and the first latching structure is in latching cooperation with the second latching structure. With such a setting, the first connection housing 11 and the second connection housing 13 are detachably connected.

[0082] Specifically, in this embodiment, as Figures 1-3As shown, the first clamping structure includes two relatively arranged and spaced second clamping parts 15. The second clamping structure 14 includes a first clamping part 141 and a first clamping hole 142, and the first clamping part 141 is adjacently arranged on one side of the first clamping hole 142. When one of the second clamping parts 15 is inserted into the first clamping hole 142, the first clamping part 141 is clamped between the two second clamping parts 15. To achieve the detachable connection of the first connection shell 11 and the second connection shell 13. Preferably, the opening distance between the two first clamping parts 141 is smaller than the dimension of the second clamping part 15 along the insertion direction. To effectively clamp the first clamping part 141 between the two second clamping parts 15.

[0083] As an alternative solution, the first clamping structure includes a first clamping part and a first clamping hole, and the first clamping part is adjacently arranged on one side of the first clamping hole. The second clamping structure includes two relatively arranged and spaced second clamping parts. It can also achieve the detachable connection of the first connection shell 11 and the second connection shell 13.

[0084] Optionally, as Figures 1-3 shown, the number of the first clamping structures and the second clamping structures is multiple, and the multiple first clamping structures and the multiple second clamping structures are arranged in one-to-one correspondence. It can further improve the connection reliability between the first connection shell 11 and the second connection shell 13.

[0085] In this embodiment, as Figures 1-3 shown, the second connection shell 13 is exemplarily set as a tubular shell. Four first clamping structures are arranged on both opposite side walls of the tubular shell, and four second clamping structures are arranged on both opposite side walls of the first connection shell 11. After the tubular shell is sleeved on the first connection shell 11, the eight first clamping structures and the eight second clamping structures are clamped and matched in one-to-one correspondence. It can effectively ensure the connection reliability between the first connection shell 11 and the second connection shell 13. Preferably, the volume of one of the two first clamping parts 141 close to the flexible acquisition unit 2 is smaller than the other. And one of the two first clamping parts 141 close to the flexible acquisition unit 2 is provided with a second guiding surface, and the second guiding surface is used to guide the first clamping part 141 to be clamped between the two second clamping parts 15. To facilitate the clamping of the first connection shell 11 and the second connection shell 13.

[0086] In other embodiments, the first connection shell 11 and the second connection shell 13 can also be detachably connected by means of screw connection.

[0087] It can be understood that the detachable connection method of the first connection shell 11 and the second connection shell 13 is not limited. As long as the first connection shell 11 and the second connection shell 13 can be detachably connected, and a connected protection cavity and a female insertion hole are formed between the first connection shell 11 and the second connection shell 13.

[0088] Preferably, the first connection housing 11 is made of an insulating material. The second connection housing 13 is made of an insulating material. With such a setting, the safety of using the electrical connector 1 can be improved.

[0089] In this embodiment, the insulating material is an elastoplastic material. That is, the first connection housing 11 is made of an elastoplastic material. The second connection housing 13 is also made of an elastoplastic material. With such a setting, not only can the safety of using the electrical connector 1 be improved, but also the convenience and reliability of clamping the first clamping portion 141 between the two second clamping portions 15 can be improved.

[0090] In this embodiment, as Figures 1-3 shown, during the process of clamping the first clamping portion 141 between the two second clamping portions 15, both the first clamping portion 141 and the second clamping portions 15 undergo elastic deformation, and the opening width between the two second clamping portions 15 becomes larger. When the first clamping portion 141 is clamped between the two second clamping portions 15, the elastic restoring force of the second clamping portions 15 drives itself to rebound, so that the opening width between the two second clamping portions 15 becomes smaller again. To effectively clamp the first clamping portion 141 between the two second clamping portions 15.

[0091] It can be understood that the first connection housing 11 and the second connection housing 13 can also be made of other types of insulating materials.

[0092] Further preferably, the first connection housing 11 is integrally formed of an insulating material. It can reduce the number of components and facilitate assembly.

[0093] Further preferably, the second connection housing 13 is integrally formed of an insulating material. It can reduce the number of components and facilitate assembly.

[0094] Wherein, at least the part of the welding head 22 in contact with the second conductive connection end 122 is plated with a conductive enhancement layer. And / or, at least the part of the second conductive connection end 122 in contact with the welding head 22 is plated with a conductive enhancement layer.

[0095] With such a setting, after the welding head 22 and the second conductive connection end 122 are welded and formed, the conductive reliability of the welding joint between the welding head 22 and the second conductive connection end 122 can be improved.

[0096] Preferably, at least the part of the welding head 22 in contact with the second conductive connection end 122 is plated with a conductive enhancement layer. And at least the part of the second conductive connection end 122 in contact with the welding head 22 is plated with a conductive enhancement layer. It can further improve the conductive reliability of the welding joint between the welding head 22 and the second conductive connection end 122.

[0097] Specifically, in this embodiment, the conductive enhancement layer is exemplarily set as a gold layer. Gold plating can enhance the electrical conductivity of the welding joint between the welding head 22 and the second conductive connection end 122, reduce the contact resistance between the welding head 22 and the second conductive connection end 122, thereby reducing the loss and interference during the transmission of electrical signals.

[0098] As an alternative solution, the conductive enhancement layer can also be set as a tin layer. Tin plating can also enhance the electrical conductivity of the welding joint between the welding head 22 and the second conductive connection end 122.

[0099] Among them, the flexible acquisition unit 2 is a flexible printed circuit board or a flexible flat cable. As Figures 2-6 shown, the number of the conductive connection terminals 12 and the welding heads 22 are both multiple, and the multiple conductive connection terminals 12 and the multiple welding heads 22 are arranged in one-to-one correspondence.

[0100] Correspondingly, the number of the jacks and the second card holes are also both multiple, and the multiple conductive connection terminals 12, the multiple jacks and the multiple second card holes are all arranged in one-to-one correspondence. In this embodiment, as Figures 2-6 shown, the number of the welding heads 22, the conductive connection terminals 12, the jacks and the second card holes are exemplarily set as twenty-four.

[0101] Taking the flexible acquisition unit 2 as a flexible printed circuit board as an example, when assembling and forming the flexible printed circuit board and the electrical connector 1, first insert and fix the multiple conductive connection terminals 12 into the first connection shell 11 in sequence, and then position the relative positions of the first connection shell 11 and the flexible printed circuit board through the positioning structure, so that the multiple welding heads 22 of the flexible printed circuit board are directly opposite to the second conductive connection ends 122 of the multiple conductive connection terminals 12 in one-to-one correspondence. After the multiple welding heads 22 of the flexible printed circuit board are directly opposite to the second conductive connection ends 122 of the multiple conductive connection terminals 12 in one-to-one correspondence, weld each welding head 22 and the corresponding second conductive connection end 122 in sequence, or simultaneously weld the multiple welding heads 22 and the corresponding second conductive connection ends 122 at one time with the help of a pressing head.

[0102] To achieve the rapid and efficient assembly and formation of the first connection shell 11, the conductive connection terminals 12 and the flexible printed circuit board.

[0103] Specifically, for the flexible acquisition unit 2 with multiple welding heads 22, since multiple first conductive connection ends 121 are first inserted and fixed to the first connection shell 11, and then the welding heads 22 and the second conductive connection ends 122 are positioned and welded in sequence or welded at one time, compared with the prior art, it can effectively avoid the problem that the conductive connection terminals inserted in the wrong position need to be removed and re-inserted, and can also effectively avoid the problem of reaming the hole to remove the conductive connection terminals inserted in the wrong position after being inserted wrongly. Among them, reaming refers to expanding the aperture of the jack at this position when the conductive connection terminal is inserted in the wrong position so that the conductive connection terminal inserted in the wrong position can be detached.

[0104] Thereby, the assembly efficiency can be further improved, the rejection rate of the electrical connector assembly can be further reduced, and the quality of the electrical connector assembly can be further stabilized.

[0105] It can be understood that the method of assembling the flexible flat cable and the electrical connector 1 is similar to the method of assembling the flexible printed circuit board and the electrical connector 1. Details are not described herein again.

[0106] Among them, for the flexible printed circuit board, multiple circuits are arranged on the surface of the flexible acquisition body 21 of the flexible printed circuit board, and multiple welding heads 22 are arranged in one-to-one correspondence with the multiple circuits. For the flexible flat cable, multiple circuits are arranged on the surface of the flexible acquisition body 21 of the flexible flat cable, and multiple welding heads 22 are arranged in one-to-one correspondence with the multiple circuits. Among them, the specific structures of the flexible printed circuit board and the flexible flat cable belong to the prior art and are not described herein again.

[0107] The present invention also discloses a battery management system, including the above-mentioned electrical connector assembly.

[0108] Specifically, for the battery module, the flexible acquisition unit 2 is a flexible printed circuit board. A temperature sensor and the like are arranged on the flexible printed circuit board. The temperature sensor is used to monitor the temperature of the battery cells of the battery module. The battery cells are electrically connected to the flexible printed circuit board so as to monitor the voltage of the battery cells.

[0109] Specifically, the battery management system further includes a controller, and the male plug of the controller is inserted and matched with the female plug jack of the first connection shell 11 so as to realize electrically connecting the controller and the flexible printed circuit board through the electrical connector 1.

[0110] Specifically, the temperature sensor monitors the temperature of the battery cells and transmits the monitored temperature to the controller in the form of an electrical signal. The battery cells are electrically connected to the flexible printed circuit board so that the controller can obtain the voltage value of the battery cells. The controller controls the operation of the battery cells according to the received electrical signal and the obtained voltage value to extend the service life of the battery cells. Among them, the specific structure of the controller belongs to the prior art and is not described herein again.

[0111] The present utility model further provides a vehicle, which includes a battery module and also includes the above-mentioned battery management system. The flexible acquisition body 21 is electrically connected to the battery cells of the battery module. By managing the battery cells of the battery module through the above-mentioned battery management system, the service life of the battery module can be effectively improved, and thus the performance of the vehicle can be effectively improved.

[0112] Obviously, the above embodiments of the present utility model are merely examples for clearly explaining the present utility model, rather than limiting the implementation manners of the present utility model. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present utility model. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present utility model shall be included in the protection scope of the claims of the present utility model.

Claims

1. An electrical connector assembly, characterized in that: include: An electrical connector, comprising a first connection shell and a conductive connection terminal, wherein the conductive connection terminal is fixed to the first connection shell; A flexible collection unit, comprising a flexible collection body and a welding head connected to each other, wherein the welding head is welded to the conductive connection end of the conductive connection terminal; The positioning structure comprises a first positioning structure arranged on the first connecting shell, and a second positioning structure arranged on the flexible collecting body, and the first positioning structure and the second positioning structure are plug-in positioned or abutted positioned.

2. The electrical connector assembly according to claim 1, characterized in that: The first positioning structure includes a positioning column, and the second positioning structure includes a positioning hole, and the positioning column is inserted into the positioning hole.

3. The electrical connector assembly according to claim 2, characterized in that: There are multiple positioning holes and multiple positioning posts, and the multiple positioning holes are arranged in a one-to-one correspondence with the multiple positioning posts.

4. The electrical connector assembly according to any one of claims 1 to 3, characterized in that: The electrical connector also includes a second connection shell, which is detachably connected to the first connection shell and forms a protection cavity with the first connection shell. The conductive connection terminal is located in the protection cavity, and the flexible collection body at least partially extends out of the protection cavity.

5. The electrical connector assembly according to claim 4, characterized in that: The first connecting shell is provided with a first clamping structure, the second connecting shell is provided with a second clamping structure, and the first clamping structure is clamped and matched with the second clamping structure.

6. The electrical connector assembly according to any one of claims 1 to 3, characterized in that: The first connection shell is further provided with an elastic locking portion. When the first connection shell is plugged into the external electrical connection structure, the elastic locking portion is plugged into the external electrical connection structure and elastically pressed against the external electrical connection structure.

7. The electrical connector assembly according to claim 6, characterized in that: The elastic locking portion is provided with a snap-on ear. When the elastic locking portion is inserted into the external electrical connection structure and elastically pressed against the external electrical connection structure, the snap-on ear is snap-connected in the external electrical connection structure.

8. The electrical connector assembly according to any one of claims 1 to 3, characterized in that: The flexible collection unit is a flexible circuit board or a flexible flat cable; The number of the conductive connection terminals and the number of the welding heads are both multiple, and the multiple conductive connection terminals and the multiple welding heads are arranged in a one-to-one correspondence.

9. A battery management system, characterized in that: An electrical connector assembly comprising any one of claims 1-8.

10. A vehicle comprising a battery module, characterized in that: It also includes the battery management system as claimed in claim 9, wherein the flexible collection body is electrically connected to the battery cells of the battery module.

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