Binding post structure, circuit board assembly and battery module

Abstract

The utility model relates to the technical field of battery modules, and discloses a binding post structure, a circuit board assembly and a battery module wherein the binding post structure comprises a wiring conductive member and at least two positioning conductive members; each wiring conductive piece comprises a wiring part and an attaching part used for being attached to the surface of a carrier, the wiring part is arranged at one end of the attaching part, the wiring part is provided with positioning holes and embedding holes used for containing wire harnesses, the embedding holes are communicated with the positioning holes, and each positioning conductive piece is arranged in the corresponding positioning hole; therefore, the wire harness in the embedded hole is abutted and fixed. By using the binding post structure, the operation is simple, the production efficiency can be effectively improved, and heat is prevented from being generated in the installation process. The over-current capability of the binding post structure is improved by adding the attaching part, so that the contact area between the binding post structure and a wire harness is larger, the over-current area is increased, and heat generated when a large current passes through is reduced. Therefore, the practicability of the binding post structure is higher.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery modules, and particularly relates to a terminal structure, a circuit board assembly and a battery module. Background Art

[0002] In the existing battery module, as a carrier for conduction, the adapter board can adopt a wiring method of copper-clad soldering or tin-plated soldering. However, when welding the wire harness, the welding efficiency is low, and at the same time, heat will be introduced into the battery cell body through the electrode tab of the battery cell, thus causing varying degrees of damage to the battery cell. In addition, the terminal can be inserted into the carrier by means of sheet metal bending, and the wire harness can be locked to the terminal by screws for wiring. However, in this way, when the terminal contacts the wire harness, the contact area between the two is small, and large current passing through easily causes heating and the safety is low. Therefore, it can be seen that the practicality of the existing wiring method is low. Summary of the Utility Model

[0003] In order to solve the deficiencies of the existing technology, the utility model provides a terminal structure, a circuit board assembly and a battery module.

[0004] The technical effects to be achieved by the utility model are realized through the following technical aspects:

[0005] In the first aspect, the utility model provides a terminal structure, including: a wiring conductive member and at least two positioning conductive members;

[0006] The wiring conductive member includes a wiring portion and a fitting portion for fitting on the surface of the carrier. The wiring portion is provided at one end of the fitting portion, and a positioning hole and an embedding hole for accommodating the wire harness are formed in the wiring portion. The embedding hole is communicated with each positioning hole, and each positioning conductive member is disposed in one positioning hole to abut and fix the wire harness in the embedding hole.

[0007] In some embodiments, the ratio range of the length of the wiring portion to the length of the fitting portion is 1:4 to 1:5.

[0008] In some embodiments, the width of the fitting portion is equal to the width of the wiring portion.

[0009] In some embodiments, the fitting portion is provided with an avoidance groove, which is recessed from one side edge of the fitting portion towards the other side edge, and the avoidance groove has an L-shaped structure.

[0010] In some embodiments, a conductive adhesive layer for bonding the surface of the carrier is provided on the fitting portion.

[0011] In some embodiments, the wiring portion is provided as a hexagonal nut, and the positioning conductive member is provided as a screw.

[0012] In some embodiments, the wiring portion and the fitting portion are integrally provided.

[0013] In a second aspect, the present utility model provides a circuit board assembly, including the terminal structure described in any of the above embodiments.

[0014] In some embodiments, it further includes a PCB board, and the terminal structure is arranged on the PCB board.

[0015] In a third aspect, the present utility model provides a battery module, including the circuit board assembly described in any of the above embodiments.

[0016] In summary, the present utility model has at least the following advantages:

[0017] For the terminal structure provided by the present utility model, by using this terminal structure, the wire harness can be positioned in the embedding hole through at least two positioning conductive members. Its operation is simple, which can effectively improve production efficiency and avoid generating heat during the installation process. And because the volume of the wiring portion is the same as that of a conventional terminal, by installing the wiring portion with the same volume on the fitting portion, the current-carrying capacity of the terminal structure can be increased by increasing the fitting portion. And after the wiring is completed, the wiring portion is a solid conductor, so that the contact area between the terminal structure and the wire harness is larger, increasing the over-current area, and further reducing the heat generated when a large current passes through, so that it can be better applied in large-current scenarios. In this way, the practicability of the terminal structure is stronger. Description of the Drawings

[0018] Figure 1 It is a schematic diagram of the overall structure of the terminal structure of the present utility model;

[0019] Figure 2 It is a schematic diagram of the overall structure of the wiring conductive member of the present utility model;

[0020] Figure 3 It is a schematic cross-sectional structure diagram of the wiring conductive member of the present utility model;

[0021] Figure 4 It is a schematic diagram of the structure of the circuit board assembly of the present utility model.

[0022] Markings in the figure:

[0023] 10. Terminal structure; 20. Circuit board assembly; 100. Wiring conductive member; 110. Wiring portion; 111. Embedding hole; 112. Positioning hole; 120. Fitting portion; 121. Avoidance groove; 200. Positioning conductive member. Detailed Embodiments

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. The described embodiments are some, but not all, of the embodiments of the present utility model.

[0025] Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0026] Refer to Figure 1 the coordinate system, with the direction indicated by the arrow of the X-axis being to the right, the direction indicated by the arrow of the Y-axis being forward, and the direction indicated by the arrow of the Z-axis being upward.

[0027] Embodiment 1:

[0028] As Figures 1 to 3 shown, this embodiment provides a terminal structure 10, including: a connection conductive member 100 and at least two positioning conductive members 200; the connection conductive member 100 includes a connection portion 110 and a fitting portion 120 for fitting on the surface of the carrier. The connection portion 110 is provided at one end of the fitting portion 120, and a positioning hole 112 and an embedding hole 111 for accommodating a wire harness are provided on the connection portion 110. The embedding hole 111 is communicated with each positioning hole 112, and each positioning conductive member 200 is disposed in a positioning hole 112 to abut and fix the wire harness in the embedding hole 111.

[0029] Specifically, both the connection portion 110 and the fitting portion 120 are provided as metal conductors. The bottom surface of the connection portion 110 is connected to the top surface of the fitting portion 120, and the left end surfaces of the connection portion 110 and the fitting portion 120 are flush with each other. An embedding hole 111 is provided on the top surface of the connection portion 110, and positioning holes 112 are respectively provided on the front and rear surfaces. The number of positioning holes 112 matches the number of positioning conductive members 200, and each positioning hole 112 is adapted to a positioning conductive member 200.

[0030] It should be noted that by using the terminal structure 10, the wire harness can be positioned in the embedding hole 111 through at least two positioning conductive members 200. Its operation is simple, which can effectively improve production efficiency and avoid generating heat during the installation process. Moreover, since the volume of the wiring part 110 is the same as that of a conventional terminal, by installing the wiring part 110 with the same volume on the fitting part 120, the current-carrying capacity of the terminal structure 10 can be increased by increasing the fitting part 120. And after the wiring is completed, the wiring part 110 is a solid conductor, so that the contact area between the terminal structure 10 and the wire harness is larger, increasing the over-current area, and further reducing the heat generated when a large current passes through, so that it can be better applied in high-current scenarios. In this way, the practicability of the terminal structure 10 is stronger.

[0031] Embodiment 2

[0032] This embodiment is a further implementation manner of Embodiment 1. In this embodiment, the ratio range of the length of the wiring part 110 to the length of the fitting part 120 is 1:4 to 1:5.

[0033] Specifically, when the ratio of the length of the wiring part 110 to the length of the fitting part 120 is within the range of 1:4 to 1:5, it can ensure that less heat is generated when the current of the wire harness passes through, and the production cost is guaranteed. It avoids the high production cost caused by the longer fitting part 120, and also avoids the heating phenomenon when the fitting part 120 is shorter. And the ratio of the length of the wiring part 110 to the length of the fitting part 120 can be set according to actual production requirements, which is not limited here, as long as it can increase the over-current area of the terminal structure 10. For example, the ratio of the length of the wiring part 110 to the length of the fitting part 120 is 1:4; for another example, the ratio of the length of the wiring part 110 to the length of the fitting part 120 is 1:4.5; for still another example, the ratio of the length of the wiring part 110 to the length of the fitting part 120 is 1:5.

[0034] For the convenience of the combined use of the wiring part 110 and the fitting part 120, as Figure 1 shown, in some embodiments, the width of the fitting part 120 is equal to the width of the wiring part 110.

[0035] Specifically, when the wire harness in the embedding hole 111 transfers the current to the wiring part 110, the current is transferred from the wiring part 110 to the fitting part 120. Since the two are of equal width, the current can be conducted better, avoiding the generation of heat caused by a smaller cross-sectional area during conduction. And when the width of the fitting part 120 is equal to the width of the wiring part 110, it is convenient for installation and cooperation. It can be understood that the width of the fitting part 120 and the width of the wiring part 110 can also be set to other relationships, which is not limited here, as long as it can ensure an increase in the over-current area of the terminal structure 10.

[0036] For the convenience of the installation of the terminal structure 10, as Figure 1 shown, in some embodiments, the fitting portion 120 is provided with an avoidance groove 121. The avoidance groove 121 is recessed from one side edge of the fitting portion 120 towards the other side edge, and the avoidance groove 121 has an L-shaped structure.

[0037] Specifically, the avoidance groove 121 is recessed from the front side edge of the fitting portion 120 towards the right side edge to form an L shape. And the shape of the avoidance groove 121 is set according to the actual production requirements, which is not limited herein, and only needs to ensure that other components are avoided. In this way, by providing the avoidance groove 121, other components on the carrier can be avoided when the terminal structure 10 is installed on the carrier, thereby increasing the practicability of the terminal structure 10.

[0038] For the convenience of the installation of the fitting portion 120 on the carrier, in some embodiments, a conductive adhesive layer for bonding the surface of the carrier is provided on the fitting portion 120.

[0039] Specifically, a conductive adhesive layer is provided on the bottom surface of the fitting portion 120. Through the bonding action of the conductive adhesive layer, the fitting portion 120 is pasted on the carrier. Among them, the conductive adhesive layer can be selected but not limited to solder paste. During installation, solder paste is brushed on the carrier in a grid pattern to firmly bond the fitting portion 120, thereby playing a fixing role.

[0040] For the convenience of the use of the wiring portion 110, as Figure 1 and Figure 2 shown, in some embodiments, the wiring portion 110 is set as a hexagonal nut, and the positioning conductive member 200 is set as a screw.

[0041] Specifically, when the wiring portion 110 is set as a hexagonal nut, the wiring portion 110 is set as a rectangular body, there is one embedding hole 111, there are five positioning holes 112, and each positioning hole 112 and the embedding hole 111 are respectively arranged on one surface of the wiring portion 110. One positioning hole 112 is arranged opposite to the embedding hole 111, and the remaining two positioning holes 112 are arranged opposite to each other on the two surfaces of the wiring portion 110. The shape and size of the screw are set to match the shape and size of the positioning hole 112 to be screwed with the hexagonal nut. Thus, the wire harness can be tightly locked by five screws, and further the installation of the wire harness is facilitated. Among them, since the terminal structure 10 is solid after installing the screws, the contact area of the wire harness is greatly increased when locking the screws, thereby increasing the current-carrying area, further reducing the heat generated when a large current passes through, and reducing potential safety hazards.

[0042] And it can be understood that the positions of the embedding holes 111 and the positioning holes 112 can be interchanged, and their specific layout shall be subject to actual production requirements and will not be limited herein, as long as the wire harness can be locked. And when the embedding hole 111 is set at the corresponding position, the positions of the remaining positioning holes 112 are correspondingly set. For example, the embedding hole 111 is provided on the top surface of the wiring part 110, and the remaining five surfaces are respectively provided with positioning holes 112; for another example, the embedding hole 111 is provided on one side surface of the wiring part 110, and the remaining five surfaces are respectively provided with positioning holes 112.

[0043] As Figure 2 shown, further, through holes are formed on the fitting part 120, and the through holes are correspondingly communicated with the positioning holes 112.

[0044] In this way, the positioning conductive member 200 can pass through the through hole and be arranged in the positioning hole 112 and be connected to this positioning hole 112, so as to facilitate the cooperation and use of the wiring part 110 and the positioning conductive member 200.

[0045] In order to facilitate the molding of the wiring member, in some embodiments, the wiring part 110 and the fitting part 120 are integrally arranged.

[0046] Specifically, by processing the wiring member in the way of CNC (Computerized Numerical Control) machining, the integrated production of the wiring post structure 10 is facilitated, and the same material setting of the wiring part 110 and the fitting part 120 makes the conductive effect better.

[0047] Among them, the carrier for conduction can be selected but is not limited to PCB (Printed Circuit Board).

[0048] Embodiment 3

[0049] This embodiment provides a circuit board assembly 20, including the wiring post structure 10 of Embodiment 1 or Embodiment 2.

[0050] Specifically, when the circuit board assembly 20 uses the wiring post structure 10 of the present application for wiring, it will be safer and more convenient to position and install the wire harness, and can significantly improve the efficiency of wire harness installation, and there is no additional heat generated. And by providing the fitting part 120, the contact area between the wiring post structure 10 and the wire harness is effectively increased, and the heat generated when a large current passes through is greatly reduced, making the circuit board assembly 20 more practical.

[0051] For the convenience of installation of the wiring post structure 10, as Figure 4 shown, in some embodiments, the circuit board assembly 20 further includes a PCB board, and the wiring post structure 10 is arranged on the PCB board.

[0052] Specifically, the PCB board is a carrier for conduction. The pad position of the terminal structure 10 is reserved when making the PCB, and solder paste is brushed on the pad in a grid pattern to prevent displacement or tin splashing when the terminal structure 10 is affixed. The terminal structure 10 is then processed by CNC and affixed to the PCB board.

[0053] The circuit board assembly 20 may be, but is not limited to, an adapter board.

[0054] Example 4

[0055] This embodiment provides a battery module, including the circuit board assembly 20 of embodiment 3.

[0056] Specifically, by providing the terminal structure 10 of Example 1 or 2 on the adapter plate, the current carrying capacity of the terminal structure 10 can be increased, so that it can be better used in high current scenarios, and can also better protect the battery cells, thereby effectively extending the service life of the battery module.

[0057] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0058] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0059] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0060] In the present utility model, unless otherwise clearly specified or limited, the first feature being above or below the second feature may include direct contact between the first and second features, or may include the first and second features not being in direct contact but in contact through additional features therebetween. Moreover, the first feature being above, on top of, and over the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being below, beneath, and under the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is less than that of the second feature.

[0061] Although the description of the present utility model is made in conjunction with the above specific embodiments, it is obvious that those skilled in the art can make many substitutions, modifications, and variations based on the above content. Therefore, all such substitutions, improvements, and variations are included within the spirit and scope of the appended claims.

Claims

1. A terminal structure, characterized in that: include: A wiring conductive member (100) and at least two positioning conductive members (200); The wiring conductive member (100) comprises a wiring portion (110) and a bonding portion (120) for bonding to a carrier surface, the wiring portion (110) being arranged on one end of the bonding portion (120), and the wiring portion (110) being provided with a positioning hole (112) and an embedding hole (111) for accommodating a wiring harness, the embedding hole (111) being arranged to communicate with each of the positioning holes (112), and each of the positioning conductive members (200) being arranged in one of the positioning holes (112) to abut and fix the wiring harness in the embedding hole (111).

2. The terminal structure according to claim 1, characterized in that: The ratio of the length of the wiring portion (110) to the length of the fitting portion (120) is in the range of 1:4 to 1:

5.

3. The terminal structure according to claim 1, characterized in that: The width of the fitting portion (120) is equal to the width of the wiring portion (110).

4. The terminal structure according to claim 1, characterized in that: The fitting portion (120) is provided with an avoidance groove (121), the avoidance groove (121) is formed by being recessed from one side of the fitting portion (120) toward the other side, and the avoidance groove (121) is in an L-shaped structure.

5. The terminal structure according to any one of claims 1 to 4, characterized in that: The laminating portion (120) is provided with a conductive adhesive layer for bonding to the surface of a carrier.

6. The terminal structure according to any one of claims 1 to 4, characterized in that: The wiring portion (110) is configured as a hexagonal nut, and the positioning conductive member (200) is configured as a screw.

7. The terminal structure according to any one of claims 1 to 4, characterized in that: The wiring portion (110) and the bonding portion (120) are integrally arranged.

8. A circuit board assembly, characterized in that: It comprises the terminal structure (10) as claimed in any one of claims 1 to 7.

9. The circuit board assembly according to claim 8, characterized in that: It also includes a PCB board, on which the terminal structure (10) is arranged.

10. A battery module, characterized in that: A circuit board assembly (20) comprising any one of claims 8 to 9.

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