CN107046110B - Lead frame for battery module lead frame assembly and battery module - Google Patents

Abstract

The invention discloses a lead frame, a lead frame assembly and a battery module for a battery module. The lead frame for a battery module includes a frame body, a setting portion and a plurality of connection terminals. The frame body has a mounting portion, and the mounting portion can be used to mount a plurality of connectors. One end of the setting portion is disposed on the frame body, and the other end is continuously extended from the frame body. The setting portion can be used to install a circuit board. A plurality of connection terminals are fixedly arranged on the frame body. One end of the plurality of connection terminals is used to electrically connect the plurality of connectors, and the other end is used to electrically connect the circuit board. The space of the invention enables high space utilization of the battery module and greater freedom of choice in the arrangement space and specifications of electronic components.

Description

Lead frames, lead frame assemblies and battery modules for battery modules

Technical field

The present invention relates to the field of connectors, in particular to a lead frame, a lead frame assembly and a battery module for a battery module.

Background technique

As people have higher and higher requirements for green and environmental protection, energy use is also required to be energy-saving and environmentally friendly. Since the burning of most fossil fuels produces large air pollution, batteries are becoming more and more popular as alternative energy sources because they do not produce air pollution. In particular, the exhaust gas produced by today's automobiles is one of the main causes of air pollution, so electric vehicles that do not emit exhaust gas are highly regarded. At present, due to many reasons such as insufficient power, limited endurance and high cost, electric vehicles are difficult to be accepted by most ordinary users, and thus difficult to promote. The important reason why it is difficult to promote electric vehicles at present is that the battery, which is the core component of electric vehicles, has high cost and insufficient technology.

In the prior art, in order to fully utilize the performance of the battery, it is generally necessary to use a battery management system (Battery Management System, BMS) to manage the battery. Battery management systems generally need to monitor various parameters of the battery, such as temperature, current or voltage. Therefore, the battery management system generally needs to output the corresponding signals collected from the battery to the processing device through a connecting device. Correspondingly, the support structure is required to support and provide connection devices and processing devices. Especially in equipment that needs to provide larger power, a battery with larger capacity is required. In the prior art, larger power output is generally achieved by connecting multiple batteries, or a single battery has a correspondingly larger volume in order to obtain a larger capacity, that is, the battery power output is proportional to the volume. In order to obtain sufficient power, a larger battery is required. Therefore, how to utilize the space of the installation environment is extremely important. Especially in a narrow installation space, such as the front of an electric vehicle, how to make full use of the space and rationally arrange the connecting devices, signal processing devices and supporting devices for output signals, so as to save space as much as possible and give the battery a larger installation space. Seems extremely important.

Contents of the invention

One of the purposes of the present invention is to overcome the deficiencies in the prior art and provide a device with high space utilization, greater freedom of choice in the arrangement space and specifications of electronic components, and the ability to provide a larger installation space for the battery. Lead frames, lead frame assemblies and battery modules for battery modules.

In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

A lead frame for a battery module, including:

A frame body having a mounting portion that can be used to mount a plurality of connectors;

A setting part, one end of which is set on the frame body, and the other end is continuously extended from the frame body, and the setting part can be used to install a circuit board; and

A plurality of connection terminals are fixedly arranged on the frame body; one end of the plurality of connection terminals is used to electrically connect a plurality of connectors, and the other end is used to electrically connect the circuit board.

Preferably, the mounting portion has a receiving portion, and the receiving portion can be used to receive the connector.

Preferably, a step is provided on the inner wall of the accommodating portion, and the step is used to carry the connecting piece.

Preferably, the mounting part is also protrudingly provided with a limiting part, and the limiting part is used to cooperate with the notch on the connecting piece for positioning the connecting piece in the accommodating part.

Preferably, the setting portion and the frame main body are arranged vertically.

Preferably, the lead frame for the battery module further includes a base, which is provided at the other end of the setting part, and the base and the frame body are respectively provided on both sides of the setting part.

Preferably, the base and the frame body are respectively provided on both sides of the setting part and extend in opposite directions.

Preferably, the setting portion is plate-shaped.

Preferably, the mounting portions are arranged in two rows, and each row of mounting portions is arranged perpendicularly to the extending direction of the mounting portion.

Preferably, one of the two rows of mounting parts is offset from the other row of mounting parts.

Preferably, the other ends of the plurality of connection terminals extend in the same direction.

Preferably, the mounting portions are arranged in at least one row along an extension direction perpendicular to the setting portion, there are at least two mounting portions in one row, and the connection terminals of different mounting portions in the same row are connected to each other. setting or interval setting.

Preferably, the other ends of the plurality of connection terminals extend beyond the setting portion.

Preferably, the plurality of connection terminals are integrally formed parts.

Preferably, the plurality of connection terminals are bimetal moldings.

Preferably, the lead frame is an injection-molded integrated piece; and the plurality of connection terminals are embedded in the frame body.

The invention also provides a lead frame assembly. The lead frame assembly includes a plurality of connectors and the lead frame described in any one of the preceding items; the plurality of connectors are provided on the mounting portion of the frame body and are electrically connected to one end of the plurality of connection terminals respectively. connect.

Preferably, the connecting pieces are respectively welded and connected to the connecting terminals.

Preferably, the connecting piece further includes a connecting body and a connecting part, the connecting body is provided on the mounting part of the frame body; the connecting part is used to connect the electrodes of the battery.

Preferably, the mounting parts are arranged in two rows along the extending direction perpendicular to the setting part, and there are at least two mounting parts in each row;

One of the connecting pieces arranged in the same row is connected or spaced apart from other connecting pieces.

Preferably, the lead frame assembly further includes a circuit board, the circuit board is disposed on the setting part; the circuit board is electrically connected to the other end of the connection terminal.

Preferably, the circuit board is disposed perpendicularly to the frame body, and the circuit board is disposed on a side of the setting portion away from the extension direction of the frame body.

Preferably, the lead frame assembly further includes a fastener, a fastening hole is opened in the setting portion, and the fastener passes through the circuit board and is fastened in the fastening hole.

Preferably, the setting part is provided with a protruding part, and the fastening hole is opened on the protruding part.

Preferably, the lead frame assembly further includes an electronic component electrically connected to the circuit board.

Preferably, the lead frame assembly further includes a control board electrically connected to the circuit board.

Preferably, the control panel is a battery management system of the battery module.

Preferably, the lead frame assembly further includes an input connector and an output connector, and the input connector and the output connector are used for electrical energy output of the battery.

The invention also provides a battery module. The battery module includes a battery and a lead frame assembly as described in any one of the foregoing; the connector is electrically connected to the battery.

Preferably, the battery is disposed below the frame body of the lead frame and opposite to the setting portion.

Compared with the prior art, the frame body of the lead frame for the battery module of the present invention extends along the edge of the setting portion, so that the frame body can only be provided with connectors and the circuit board is placed on the setting portion. Since the circuit board needs to be equipped with corresponding electronic components, it has a larger thickness or height, and accordingly needs to occupy a larger space. The circuit board is arranged on the setting part so that the frame body has a large space in the thickness or height direction to install the battery. Therefore, the lead frame improves space utilization and allows the battery to have a larger installation space through reasonable layout, thereby enabling the battery module to have the ability to output greater power.

Preferably, the mounting portion of the lead frame for the battery module for mounting the connector is configured as an accommodating portion, which not only facilitates disassembly and assembly, but also further reduces the occupied space in the thickness direction of the frame body. The through hole provided at the bottom of the accommodating part not only facilitates the connection between the connector and the battery, but also facilitates rapid heat dissipation. In addition, the frame body also includes a terminal guide part, which not only facilitates the arrangement of the connection terminals of the connector, but also prevents short circuits caused by mistaken contact with other components, wires, etc., thereby eliminating the need for additional designs such as fuses. Class short circuit protection. All connection terminals of the connector are extended in a direction close to (or perpendicular to) the setting part of the lead frame to be connected to the same circuit board, so that there are at least two connection terminals in the direction close to the setting part. When a connector is used, there is no need to provide more than one circuit board and no other lead frame components are needed to aggregate or otherwise process the electrical signals of different circuit boards. In a direction close to or perpendicular to the setting portion of the lead frame, the setting portion is staggered, so that the battery can be staggered accordingly to fully utilize the space. Different terminal guide portions of the frame body can be connected in a direction close to or perpendicular to the setting portion of the lead frame, thereby not only saving space, but also adapting to the collected signals or signals of different batteries. Requirements for the convergence of output current and voltage.

Description of the drawings

Figure 1 is a schematic structural diagram of a lead frame for a battery module provided by the present invention.

FIG. 2 is an enlarged schematic diagram of the lead frame used in the battery module of FIG. 1 at position R. Referring to FIG.

FIG. 3 is a schematic structural diagram of one embodiment of the lead frame assembly provided by the present invention.

FIG. 4 is a schematic diagram of the connection and arrangement relationship between the connectors and the connection terminals of the lead frame assembly in FIG. 3 when the frame body, the setting part and the base are not shown.

FIG. 5 is a schematic structural diagram of the connector of FIG. 3 .

FIG. 6 is a cross-sectional view of the lead frame of FIG. 3 along line A-A.

FIG. 7 is an enlarged schematic diagram of position M in FIG. 6 .

FIG. 8 is a schematic structural diagram of the second embodiment of the lead frame assembly in FIG. 3 .

FIG. 9 is a cross-sectional view of the lead frame assembly of FIG. 8 taken along line B-B.

FIG. 10 is an enlarged schematic view of the lead frame assembly of FIG. 9 at position N.

FIG. 11 is a schematic structural diagram of the third embodiment of the lead frame assembly of FIG. 8 .

Detailed ways

The present invention will be described in detail below in conjunction with the accompanying drawings:

Example 1:

Please refer to FIG. 1 , which is a schematic structural diagram of a lead frame 101 for a battery module provided by the present invention. The lead frame 101 for a battery module includes a frame body 11 , a setting portion 12 and a plurality of connection terminals 28 . The frame body 11 is used to install the following connector 20 .

Please also refer to FIG. 2 . The frame body 11 has a mounting portion 111 . The mounting portion 111 is used to mount the connector 20 described below. The overall shape and size of the frame body 11 are selected according to the installation environment. In this embodiment, in order to adapt to a narrow installation environment, the frame main body 11 is configured in a rectangular parallelepiped plate shape. The mounting portion 111 only needs to be capable of mounting the connector 20 described below.

In this embodiment, in order to facilitate installation and disassembly, the installation part 111 is provided with an accommodating part 112 . At the same time, the arrangement of the accommodating portion 112 can also prevent the following connectors 20 from protruding or not all protruding from the upper surface of the frame body 11 , thereby meeting the requirements of a narrow installation environment. The accommodating part 112 may be a groove, a cavity, etc. In this embodiment, the accommodating portion 112 is a depression.

In order to facilitate rapid heat dissipation and facilitate the cooperation of batteries or other components described below, a through hole 113 is provided at the bottom of the accommodating portion 112 . The through hole 113 may be a circular hole, a polygonal hole or an irregular cavity. In this embodiment, in order to save space and accommodate the connector 30 described below, the through hole 113 is provided with a rectangular hole.

A step 114 is provided on the inner wall of the through hole 113 . The step 114 can be used to support the connector 20 described below. The width and length of the step 114 only need to be able to support the connector 20 described below. The step 114 may be provided around the circumference of the through hole 113 , or may be provided only on two opposite inner side walls of the through hole 113 , or at a corner of the through hole 113 . In order to facilitate manufacturing, save manufacturing materials and achieve better support effect, there are two steps 114 , and the two steps 114 are respectively provided on two opposite inner side walls of the through hole 113 . In this embodiment, the two steps 114 are provided on the two shorter inner walls of the through hole 113 .

In order to facilitate the alignment and installation of the following connectors 20 and to further limit the movement of the following connectors 20, a limiting portion 115 is also provided on the inner wall of the accommodating portion 112 of the mounting portion 111. The limiting portion 115 is configured to cooperate with the notch 211 on the connector 20 described below.

In order to facilitate regular arrangement of the connection terminals 28 without causing interference to other components, the frame body 11 further includes a terminal guide portion 116 . The terminal guide part 116 is provided to extend in a direction close to the installation part 12 so as to guide the connection terminal 28 . The terminal guide portion 116 may be a depression, a hole, or the like. In this embodiment, in order to facilitate its manufacture to achieve better sealing, waterproofing, anti-interference, and avoid short circuits caused by misconnection with other electronic components, wires or terminals, the terminal guide 116 is configured as an injection molded structure. Wrap the connecting terminal 28. That is, the connection terminals 28 are embedded in the frame body 11 . The specific shape of the injection molding structure of the terminal guide part 116 can be as long as it can wrap the connection terminal 28 . In this embodiment, the terminal guide portion 116 is configured in a long columnar shape. In this embodiment, the terminal guide portion 116 extends to the bottom of the through hole 113 of the mounting portion 111 .

The number and position of the mounting parts 111 are selected according to the connection requirements. There may be one, two or more mounting parts 111 . In order to achieve connection with a plurality of batteries described below, in this example, the frame body 11 has a plurality of mounting parts 111 . Specifically, the mounting parts 111 are at least one row. The row of mounting portions 111 is arranged to extend in a direction close to the setting portion 12 , in this embodiment, that is, in a direction perpendicular to the setting portion 12 or along the width direction of the frame body 11 . All the mounting parts 111 in this row are arranged in a staggered manner, that is, they are staggered without being aligned with each other. As shown in Figure 2 (it can also be combined with Figure 4 and the following description of the arrangement relationship of the connectors 20), in this embodiment, there are two mounting parts 111 in each row. Of course, you can also choose three or even more as needed. In addition, as shown in Figure 2 (which can also be combined with the description of Figures 4, 8 and 10 and the connector 20 described below), the terminal guide portions 116 of different mounting portions 111 in the same row can also be connected to save money. space and can connect two connecting terminals 28 in the same row to meet the requirement of being able to aggregate signals, currents or voltages from different batteries for output. In this embodiment, as shown in FIG. 4 , the mounting portions 111 are connected between the terminal guide portions 116 in the same row. The mounting portion 111 is spaced between the two terminal guide portions 116 in the same row, so that the connector 20 described below can output signals, currents or voltages of different batteries to the circuit board 30 described below or to terminals on the circuit board 30 respectively. Corresponding electronic components.

Specifically, the mounting parts 111 are arranged in two rows. The extending direction of the two rows of mounting portions 111 is perpendicular to the direction approaching the mounting portion 12 , that is, perpendicular to the insertion direction of the connector 20 described below. In order to facilitate the staggered arrangement of the batteries connected to the connectors 20 described below, make full use of space and facilitate the connection between the connectors 20 arranged in the mounting parts 111 in different rows, the mounting parts 111 arranged in the same row are connected to another one. The mounting portions 111 in the row are staggered in a direction approaching the setting portion 12 .

The setting portion 12 extends from the edge of the frame body 11 . In order to save installation space and provide a larger installation space in the direction parallel to the surface of the frame body 11 , the setting portion 12 is provided on the frame body 11 and is perpendicular or vertical to the frame body 11 . intersect. It should be noted that the setting portion 12 intersects the frame body 11 at an angle that meets the installation requirements and allows the following circuit board 30 to be disposed on the setting portion 12 without being disposed on the frame body. Just go up to 11. In order to facilitate manufacturing and make full use of the installation space, the intersection angle between the extension direction of the setting portion 12 and the extension direction of the frame body 11 is less than 180 degrees and greater than or equal to 45 degrees. Of course, the intersection angle between the extension direction of the setting portion 12 and the extension direction of the frame body 11 can be set to 60 degrees. In order to facilitate manufacturing and facilitate the extension of the following connector 20 to be connected to the following circuit board provided on the setting part 12, the setting part 12 is set perpendicular to the frame body 11, that is, the setting part The angle between the extension direction of 12 and the extension direction of the frame body 11 is 90 degrees. The angle formed by the intersection of the setting part 12 and the frame body 11 can be as long as it can connect the connector 20 provided on the frame body 11 with the circuit board provided on the setting part 12. Therefore, the frame body 11 does not need to be provided with a circuit board and can be made into a smaller structure to meet the needs of a narrower installation environment. In order to ensure strong structural integrity, make full use of the installation space, and not block the installation of the battery described below, the setting portion 12 is configured as a flat plate. In order to fully utilize the installation space, the upper end of the setting portion 12 is provided on one side edge of the frame body 11 .

The setting part 12 may be provided with a plug-in structure, a buckle and other structures to realize the installation of the following circuit board. In order to facilitate disassembly and installation and achieve stable installation, a fastening hole 121 is provided in the setting portion 12 to achieve fastening cooperation with the following fastener 41 . In order to facilitate the rapid heat dissipation of the following circuit board and facilitate the installation and cooperation of other electronic devices and the circuit board, the setting part 12 has a protruding part 122 protrudingly provided, and the fastening hole 121 is opened on the protruding part 122, so that There is a gap between the following circuit board and the setting part 12 . The number and position of the fastening holes 121 can be selected as long as the following circuit board can be installed. In this embodiment, there are three fastening holes 121 , and the connection lines between the three fastening holes 121 are arranged in a right-angled triangle.

In order to facilitate supporting the setting part 12 , the lead frame 101 for the battery module further includes a base 13 . In this embodiment, in order to facilitate manufacturing and achieve better support effect, the base 13 is configured in a flat plate shape. In order to provide a larger installation space for the following batteries, the base 13 is provided at the lower end of the setting part 12 and is respectively provided with the frame body 11 on both sides of the setting part 12 .

In order to improve the stability of the overall structure and save manufacturing costs, the frame body 11 of the lead frame 101 for the battery module is an injection molded one-piece. That is, the connection terminals 28 are embedded in the frame body 11 .

The connection terminals 28 protrude from the mounting portion 111 and are used for connecting to the circuit board 30 described below. There are a plurality of connection terminals 28 , and each of them is fixedly mounted on the frame body 11 . In this embodiment, the connection terminal 28 is accommodated in the accommodation portion 112 . One end 282 of the connection terminal 28 is used to connect to the following connector 20 , and the other end 281 is used to electrically connect to the following circuit board 30 . The connection terminal 28 may be an integrally formed part. In order to have high universal performance and reduce corrosion caused by potential differences caused by different metal connections, the connection terminal 28 is made of bimetallic material. In this embodiment, the connection terminal 28 is made of copper and aluminum, thereby facilitating connection with the corresponding copper or aluminum material of the same material. In order to facilitate connection with other components, the other end 281 of the connection terminal 28 protrudes from the setting portion 12 .

Example 2:

Please refer to FIGS. 3 to 7 together. The present invention also provides a schematic structural diagram of a lead frame assembly 102 . The lead frame assembly 102 includes the lead frame 101 for the battery module and the connector 20 . The connector 20 is provided on the mounting portion 111 of the frame body 11 of the lead frame 101 for the battery module.

In this embodiment, the connector 20 is accommodated in the accommodating portion 112 of the mounting portion 111 and is disposed on the step 114 on the inner wall of the accommodating portion 112 . The number and specific shape of the connecting pieces 20 are selected according to the connection requirements. In this embodiment, the number and specific shape of the connectors 20 only need to meet the requirements for connecting to the electrodes of the battery described below. Specifically, the number of the connectors 20 in the second embodiment matches the number and arrangement position of the mounting portions 111 in the first embodiment.

In order to enhance the current flow capacity, the connector 20 also includes a flat connection body 21 . The connection body 21 is connected to the battery described below to transmit the current sampling signal to the circuit board described below through the connection terminal 28 . As described in the first embodiment, the connection terminals 28 are provided in the terminal guide portion 116 of the lead frame 101 for the battery module. Further, the connection terminal 28 is provided within the injection molding structure of the terminal guide 116 . The connecting piece 20 can be made of metal materials such as copper, aluminum or iron. The specifications, parameters and materials of the connector 20 are all common techniques described by those skilled in the art and are not the focus of the present invention, so they will not be described again here.

In order to facilitate the connector 20 to be aligned and installed in the receiving portion 112 of the mounting portion 111 of the frame body 11 and to further restrict the movement of the connector 20 , the connector 20 is also provided with a notch 211 . It cooperates with the limiting portion 115 on the inner wall of the receiving portion 112 of the mounting portion 111 . Of course, the connecting member 20 can also have a groove to cooperate with the limiting portion 115 .

Please continue to refer to Figure 4. In order to fully monitor and manage the following batteries and fully guarantee the performance of the battery, it is necessary to process the battery signal, current or voltage differently. Correspondingly, the battery signals, currents or voltages output by some connectors 20 need to be transmitted to the circuit board 30 or corresponding electronic components on the circuit board 30 for corresponding processing or corresponding operations, while other connectors 20 The output signal, current or voltage of the battery needs to be aggregated and processed. In this embodiment, the corresponding connectors 20 provided in a row of mounting seats 111 need to be connected accordingly or cannot be connected. Specifically, the connection terminals 28 provided in the mounting portion 111 of each row are connected to each other. The connection terminals 28 are individually connected to the lower circuit board 30 or electronic components on the circuit board 30 .

Embodiment three:

Please refer to FIGS. 8 to 10 together. The difference between this embodiment of the lead frame assembly 102 and the above-mentioned embodiment is that in order to facilitate the realization of corresponding electrical performance, the lead frame assembly 102 also includes a circuit board 30 and an electronic circuit board 30 . Element 66. The electronic component 66 is electrically connected to the circuit board 30 . The electronic component 66 may be a relay.

The circuit board 30 can also be called PCB (Printed Circuit Board). The connecting piece 20 also includes a connecting portion 22 . The connecting portion 22 is used to connect to the battery module described below. The connecting portion 22 and the battery module only need to be electrically connected, for example, in contact. In this embodiment, in order to obtain stable connection performance, the connecting portion 22 is a through hole. After the electrodes of the battery module extend into the through hole, they are connected to the wall of the through hole through welding. The specifications and parameters of the circuit board 30 are not the focus of the present invention and are well known to those skilled in the art, so they will not be described again here. The circuit board 30 is disposed on the setting portion 12 of the lead frame 101 for the battery module, and the circuit board 30 is connected to the connector 20 .

The circuit board 30 can be arranged on the setting portion 12 of the lead frame 101 for the battery module in any manner. In order to facilitate disassembly and installation and achieve stable installation, the lead frame assembly 102 also includes fasteners 41 . The fastener 41 passes through the circuit board 30 and is fastened in the fastening hole 121 of the setting part 12 . The fasteners 41 may be screws, studs, bolts, etc. In this embodiment, in order to maintain good integrity and not interfere with the battery described below, the fastening 41 does not penetrate the setting portion 12 .

In order to facilitate the rapid heat dissipation of the circuit board 30 and facilitate the installation and cooperation of other electronic devices with the circuit board 30 , the circuit board 30 is provided with a gap from the setting portion 12 . In this embodiment, the fastening holes 121 are opened on the protruding portions 122 protrudingly provided on the setting portion 12 , so that there is a gap between the following circuit board 30 and the setting portion 12 .

In order to facilitate quick and stable connection between the connector 20 and the circuit board 30 , the circuit board 30 is arranged perpendicularly to the frame body 11 of the lead frame 101 for the battery module.

Embodiment 4:

Please refer to FIG. 11 together. The difference between the fourth embodiment and the third embodiment is that in order to facilitate the control of current and voltage, the lead frame assembly 102 further includes a control board 77 . The control board 77 is electrically connected to the circuit board 30 . The control board 77 can use corresponding control chips and corresponding peripheral circuits to implement control functions. In this embodiment, the control board 77 is the battery management system of the battery module. It is conceivable that the battery management system (Battery Management System, BMS) of the battery module is an important link between the vehicle power battery and the electric vehicle. Its main functions include: real-time monitoring of battery physical parameters; battery status estimation; online diagnosis and Early warning; charge, discharge and precharge control; balance management and thermal management, etc.

In order to facilitate the transmission of electric energy from the battery, the lead frame assembly 102 also includes an input connector and an output connector. The input connector and the output connector are used to output electrical energy from the battery.

The manufacturing steps of the lead frame assembly 102 are described in detail below:

S101: Provide a lead frame 101 for a battery module. The lead frame 101 for a battery module includes a frame body 11 and a setting portion 12 . The frame body 11 has a mounting portion 111 . The setting part 12 is arranged on the frame body 11 perpendicularly or intersecting with the frame body 11 .

S102: Provide the circuit board 30. The circuit board 30 is installed on the installation portion 12 of the lead frame 101 for the battery module.

S103: Provide the connecting piece 20. The connector 20 is disposed on the mounting portion 111 of the frame body 11 and connected to the circuit board 30 .

In order to facilitate the regular arrangement of the connection terminals 28 without causing interference to other components, the manufacturing method of the lead frame assembly 102 further includes the steps:

The connector 20 has connection terminals 28 , the frame body 11 has a terminal guide 116 , and the connection terminal 28 is disposed in the terminal guide 116 .

In this embodiment, in order to facilitate the manufacturing of the lead frame assembly 102 to achieve better sealing, waterproofing, anti-interference, and avoid short circuits caused by misconnection with other electronic components, wires or terminals, the manufacturing method of the lead frame assembly 102 also includes the following steps: :

The connection terminal 28 is embedded in a mold in advance, and is injection molded in the mold to form the terminal guide portion 116 surrounding the connection terminal 28 .

In order to facilitate quick and stable connection between the connector 20 and the circuit board 30 , the manufacturing method of the lead frame assembly 102 further includes the steps:

The circuit board 30 is arranged perpendicularly to the frame body 11 .

Embodiment five:

The present invention also provides a battery module (not shown in the figure). The battery module includes a battery (not shown in the figure) and the lead frame assembly 102 . The connector 20 of the lead frame assembly 102 is electrically connected to the battery. The specifications and parameters of the battery are well known to those skilled in the art and are not the focus of the present invention, so they will not be described in detail here. In this embodiment, the battery is a battery used to drive an electric vehicle. In order to save space and make the overall structure compact, the battery is disposed below the frame body 11 of the lead frame 101 for the battery module and facing the setting portion 12 .

It should be noted that the terms “upper” and “lower”, “upper end” and “lower end”, and “upper” and “lower end” mentioned in the present invention are relative concepts. Specifically, in the present invention, the frame body 11 is provided at the "upper end" of the setting part 12 , and the base 13 is provided at the "lower end" of the setting part 12 .

Compared with the prior art, the frame body 11 of the lead frame 101 for the battery module of the present invention extends along the edge of the setting portion 12, so that the frame body 11 can only be provided with the connector 20, and the circuit board 30 is placed there. on the setting part 12. Since corresponding electronic components 66 need to be disposed on the circuit board 30, the circuit board 30 has a larger thickness or height, and accordingly needs to occupy a larger space. The circuit board 30 is arranged on the setting part 12 so that the frame body 11 has a large space in the thickness or height direction to install the battery. Therefore, the lead frame 101 improves space utilization and allows the battery to have a larger installation space through reasonable layout, thereby enabling the battery module to have the ability to output greater power.

Preferably, the mounting portion 111 for mounting the connector 20 of the lead frame 101 for the battery module is configured as a receiving portion, which not only facilitates disassembly and assembly, but also further reduces the occupied space in the thickness direction of the frame body. The through hole 113 is provided at the bottom of the accommodating portion, which not only facilitates the connection between the connector 20 and the battery, but also facilitates rapid heat dissipation. In addition, the frame body 11 also includes a terminal guide 116, which not only facilitates the arrangement of the connection terminals of the connector, but also prevents short circuits caused by mistaken contact with other components, wires, etc., thereby eliminating the need for additional designs such as Short circuit protection such as fuse. All connection terminals 28 of the connector 20 are extended in a direction close to (or perpendicular to) the setting portion 12 of the lead frame 101 to be connected to the same circuit board 30 , so that they are connected along the direction close to the setting portion 12 When there are at least two connectors 20 in the direction, there is no need to provide more than one circuit board 30 and there is no need for other lead frame components 102 to aggregate or otherwise process the electrical signals of different circuit boards 30 . In a direction close to or perpendicular to the setting portion 12 of the lead frame 101 , the setting portion 12 is staggered, so that the battery can be staggered accordingly to fully utilize the space. Different terminal guide portions 116 of the frame body 11 can be connected in a direction close to or perpendicular to the setting portion 12 of the lead frame, thereby not only saving space, but also adapting to different batteries to be collected. The signal or output current and voltage are required to be aggregated.

The above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions or improvements within the spirit of the present invention are covered by the claims of the present invention.

Claims (28)

1. A lead frame for a battery module, comprising:

a frame body having a mounting portion operable to mount a plurality of connectors; the mounting part is provided with a containing part which can be used for containing the connecting piece; the mounting part is also provided with a limiting part in a protruding mode, and the limiting part is used for being matched with the notch on the connecting piece so as to be used for positioning the connecting piece at the accommodating part;

a setting part, one end of which is arranged on the frame main body, and the other end of which extends from the edge of the frame main body, and the setting part can be used for installing a circuit board; and

a plurality of connection terminals fixedly provided on the frame body; one ends of the plurality of connecting terminals are respectively used for electrically connecting the plurality of connecting pieces, and the other ends of the plurality of connecting terminals are used for electrically connecting the circuit board and protrude out of the setting part to extend towards the same direction.

2. The lead frame for a battery module according to claim 1, wherein: the inner side wall of the accommodating part is provided with a step which is used for bearing the connecting piece.

3. The lead frame for a battery module according to claim 1, wherein: the setting part and the the frame body is vertically disposed.

4. The lead frame for a battery module according to claim 1, wherein: the device also comprises a base, wherein the base is arranged at the other end of the setting part, and the base and the frame main body are respectively arranged at two sides of the setting part.

5. The lead frame for a battery module according to claim 4, wherein: the base and the frame body are respectively arranged at two sides of the arrangement part and extend in opposite directions.

6. The lead frame for a battery module according to claim 1, wherein: the installation part is plate-shaped.

7. The lead frame for a battery module according to claim 1, the method is characterized in that: the mounting parts are arranged in two rows, and each row of mounting parts is perpendicular to the extending direction of the setting part.

8. The lead frame for a battery module according to claim 7, wherein: one row of installation parts and the other row of installation parts of the two rows of installation parts are arranged in a staggered mode.

9. The lead frame for a battery module according to claim 1, wherein: the setting portion is disposed at an angle to the frame body.

10. The lead frame for a battery module according to claim 1, wherein: the installation parts are arranged into at least one row along the extending direction perpendicular to the arrangement parts, at least two installation parts in the row are arranged, and connection terminals of different installation parts in the same row are communicated or arranged at intervals.

11. The lead frame for a battery module according to claim 1, the method is characterized in that: the other ends of the plurality of connection terminals protrude from the setting portion to extend.

12. The lead frame for a battery module according to claim 1, wherein: the plurality of connecting terminals are integrally formed.

13. The lead frame for a battery module according to claim 12, wherein: the plurality of connecting terminals are bimetal molded parts.

14. The method according to any one of claims 1 to 13 the lead frame for the battery module set is described, the method is characterized in that: the lead frame is an injection molding integrated piece; the plurality of connecting terminals are embedded in the frame main body.

15. A lead frame assembly comprising a plurality of lead frames, it is characterized in that the method comprises the following steps: comprising a plurality of connectors and the method of claims 1 to 114, and a lead frame of any one of claims; the plurality of connecting pieces are arranged on the mounting part of the frame body and are respectively and electrically connected with one ends of the plurality of connecting terminals.

16. The leadframe assembly according to claim 15, wherein: the connecting pieces are respectively connected with the connecting terminals in a welding way.

17. The leadframe assembly according to claim 16, wherein: the connecting piece also comprises a connecting main body and a connecting part, wherein the connecting main body is arranged on the mounting part of the frame main body; the connection part is used for connecting the electrodes of the battery.

18. The leadframe assembly according to claim 16, wherein: the mounting parts are arranged in two rows along the extending direction perpendicular to the arrangement parts, and the number of the mounting parts in each row is at least two;

one of the connectors and arranged in the same row and other connecting pieces are connected or arranged at intervals.

19. The leadframe assembly of claim 15, further comprising a circuit board disposed on the set-up portion; the circuit board is electrically connected with the other end of the connecting terminal.

20. The method according to claim 19 is provided with a lead frame assembly of the (c), the method is characterized in that: the circuit board is disposed perpendicularly to the frame body, and is disposed on a side of the disposition portion facing away from an extending direction of the frame body.

21. The leadframe assembly according to claim 19, wherein: the circuit board is characterized by further comprising a fastening piece, wherein a fastening hole is formed in the setting part, and the fastening piece penetrates through the circuit board and is fastened in the fastening hole.

22. The leadframe assembly according to claim 21, wherein: the arrangement portion is provided with a protruding portion on which the fastening Kong Kaishe is provided.

23. The leadframe assembly according to claim 19, wherein: also included is an electronic component which is arranged in the electronic device, the electronic component is electrically connected with the circuit board.

24. The leadframe assembly according to claim 19, wherein: also comprises a control board, a control board and a control board, the control board is electrically connected with the circuit board.

25. The leadframe assembly according to claim 24, wherein: the control panel is a battery management system of the battery module.

26. The leadframe assembly according to any one of claims 15 to 25, wherein: the battery also comprises an input connecting piece and an output connecting piece, wherein the input connecting piece and the output connecting piece are used for outputting electric energy of the battery.

27. A battery module comprising a battery and the lead frame assembly of any one of claims 15 to 26; the connecting piece is electrically connected with the battery.

28. The battery module of claim 27, wherein: the battery is arranged below the frame body of the lead frame and is arranged opposite to the arrangement part.