Conductive connector and circuit board

Abstract

The utility model relates to a kind of electrically conductive connecting piece and circuit board, including welding portion, connecting portion, and the intermediate deformation portion of connecting welding portion and connecting portion;The welding portion includes multiple soldering legs;Fixed hole is set up on the connecting portion;The intermediate deformation portion is corrugated structure.The utility model can be easily installed, and the stress generated by error can also be absorbed by intermediate deformation portion, while having better stress dispersion capacity and greater deformation range.

Description

Technical Field

[0001] This utility model belongs to the technical field of conductive connectors, specifically relating to conductive connectors and circuit boards. Background Technology

[0002] In the field of equipment with stringent requirements for dustproofing, waterproofing, and safety, such as industrial precision instruments and outdoor communication equipment, circuit boards are usually installed in a sealed space to ensure stable operation of the equipment in complex and harsh environments, thereby isolating them from dust, moisture, etc., while meeting electrical safety regulations.

[0003] The circuit board needs to be connected to external conductive terminals via copper busbars to achieve electrical functions, but existing copper busbar connection solutions have many shortcomings: The conventional hard copper busbar (or terminal) soldering-then-locking method versus the hard copper busbar overlapping method: Hard copper busbars are rigid, and locking them will generate significant stress on the circuit board. The circuit board structure is fragile and cannot withstand this stress, easily deforming, which can lead to solder joint failure, failure of surrounding surface-mount components, and affect the normal operation of the equipment.

[0004] The method of first locking and then welding hard copper busbars: Although this method can reduce the direct stress on the pads, it requires high precision positioning of the copper busbars. In actual production, additional precision positioning equipment is required, and more manpower is needed for operation and debugging, which increases the costs of equipment procurement and labor, and is not conducive to large-scale production.

[0005] Soldering followed by latching of soft copper busbars: This method utilizes the flexibility of soft copper busbars, resulting in less stress on the solder pads during latching and reducing the risk of circuit board deformation. However, the manufacturing process of soft copper busbars is complex and costly, making it difficult to promote and apply in cost-sensitive fields.

[0006] Therefore, it is necessary to develop a new conductive connector and circuit board. Utility Model Content

[0007] The purpose of this invention is to provide a conductive connector and circuit board that are easy to install, and the stress caused by errors can be absorbed by the intermediate deformation part, while having better stress dispersion ability and a larger deformation range.

[0008] In a first aspect, the conductive connector of this utility model includes a welding part, a connecting part, and an intermediate deformable part connecting the welding part and the connecting part; The welding section includes multiple weld legs; The connecting part is provided with a fixing hole; The intermediate deformable section has a corrugated structure.

[0009] Optionally, the intermediate deformable portion includes at least one protruding structure and at least one recessed structure. During actual installation, due to manufacturing or installation errors, there may be a certain positional deviation between the connector and the conductive terminal. In this case, the corrugated structure of the intermediate deformable portion can provide a certain deformation space, allowing the conductive connector to adapt to this error and facilitating installation. Simultaneously, when errors exist, certain stresses are generated. The corrugated structure of the intermediate deformable portion can effectively absorb these stresses, preventing stress transmission to the circuit board's solder pads, thereby avoiding damage to the solder pads due to excessive force and ensuring the stability and reliability of the circuit board.

[0010] Optionally, the intermediate deformed portion includes a first straight segment, a second curved segment, a third straight segment, a fourth curved segment, a fifth straight segment, a sixth curved segment, and a seventh straight segment connected in sequence. The first straight segment connects to the connecting part; The first and third line segments are positioned relative to each other; The third and fifth straight segments are arranged opposite to each other; The fifth and seventh straight segments are arranged opposite to each other; The seventh straight segment connects to the welding section. By incorporating multiple straight and curved segments, this segmented and curved structure provides ample deformation possibilities for the intermediate deformation section. When positional deviations occur during actual installation, the segments can cooperate to deform, allowing this structure to better adapt to positional deviations between the connection section and the conductive terminals, making the installation of conductive connectors more convenient. When errors generate stress, this multi-segment structure can distribute the stress across the various straight and curved segments. The connections and transitions between different segments can alter the stress transmission path and method, avoiding stress concentration and preventing excessive stress concentration at the circuit board pads, thus ensuring the stability and reliability of the circuit board.

[0011] Optionally, at least one of the solder feet in the welded part has a different size than the other solder feet. The solder feet are used for soldering connections to the circuit board. To prevent incorrect orientation during installation, the solder feet are designed with different sizes. During soldering, the operator can quickly and accurately determine the soldering direction based on the size of the solder feet, improving installation efficiency and accuracy.

[0012] Optionally, the conductive connector is integrally stamped. Integral stamping ensures tight connections and structural stability between the various parts of the conductive connector, eliminating the need for welding, pressing, or other processes, and offering the advantage of low cost.

[0013] Secondly, the circuit board of this utility model adopts the conductive connector as described in this utility model.

[0014] This utility model has the following unexpected technical effects: (1) The conductive connector of this utility model adopts a corrugated structure in the middle deformation part. This corrugated structure can provide sufficient deformation space when there is an installation error between the connector and the conductive terminal. When stress is generated due to the error, the corrugated structure can effectively absorb the stress and avoid the stress being transmitted to the solder pads of the circuit board. This fundamentally solves the problem of stress damaging the circuit board, greatly improves the stability and reliability of the circuit board, and ensures the normal operation of the equipment in complex environments.

[0015] (2) The conductive connector of this utility model has better stress dispersion capability and a larger deformation range due to the corrugated structure of its intermediate deformation part. During the installation process, the positioning accuracy requirements of the conductive connector and the conductive terminal are relatively reduced, and there is no need to equip it with additional high-precision positioning equipment. This reduces the complexity of manual operation and debugging, thereby effectively reducing equipment procurement and labor costs, improving production efficiency, and providing favorable conditions for large-scale production.

[0016] (3) The conductive connector of this utility model has a reasonable overall design and can be produced using a relatively mature manufacturing process (integral stamping). In particular, the corrugated structure of the middle deformation part effectively reduces the manufacturing cost while ensuring performance, compared with the complex manufacturing process of soft copper busbar. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the conductive connector described in the embodiments of this application; In the diagram: 1. Welding section, 2. Connecting section, 3. Intermediate deformation section, 31. First straight segment, 32. Second curved segment, 33. Third straight segment, 34. Fourth curved segment, 35. Fifth straight segment, 36. Sixth curved segment, 37. Seventh straight segment, 4. Fixing hole. Detailed Implementation

[0018] The embodiments of this utility model will be described below with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be understood that the preferred embodiments are only for illustrating this utility model and not for limiting the scope of protection of this utility model.

[0019] like Figure 1As shown in the embodiment of this application, a conductive connector has an overall flat copper busbar structure for high current transmission. The connector body includes a welding part 1, a connecting part 2, and an intermediate deformable part 3 connecting the welding part 1 and the connecting part 2. The welding part 1 includes multiple solder feet for soldering to a circuit board. The connecting part 2 has a fixing hole 4, which allows it to be connected to the bolt hole of a conductive terminal for power transmission. The intermediate deformable part 3 has a corrugated structure, providing deformation when there is an error between the connecting part 2 and the conductive terminal. The intermediate deformable part 3 facilitates installation, and the stress generated by the error can also be absorbed by the intermediate deformable part 3, preventing stress from being transmitted to the solder pads of the circuit board. Compared with straight or simple bending structures, the corrugated structure of the intermediate deformable part 3 has better stress dispersion capability and a larger deformation range.

[0020] In one possible embodiment, the intermediate deformable portion 3 includes at least one protruding structure and at least one recessed structure. During actual installation, due to manufacturing or installation errors, there may be a certain positional deviation between the connecting portion 2 and the conductive terminal. In this case, the corrugated structure of the intermediate deformable portion 3 can provide a certain deformation space, allowing the conductive connector to adapt to this error and facilitating installation. Simultaneously, when errors exist, certain stresses are generated. The corrugated structure of the intermediate deformable portion 3 can effectively absorb these stresses, preventing stress transmission to the solder pads on the circuit board, thereby avoiding damage to the solder pads due to excessive force and ensuring the stability and reliability of the circuit board.

[0021] For example, the intermediate deformation section 3 includes a first straight segment 31, a second curved segment 32, a third straight segment 33, a fourth curved segment 34, a fifth straight segment 35, a sixth curved segment 36, and a seventh straight segment 37 connected sequentially. The first straight segment 31 connects to the connecting part 2. The first straight segment 31 and the third straight segment 33 are arranged opposite to each other. The third straight segment 33 and the fifth straight segment 35 are arranged opposite to each other. The fifth straight segment 35 and the seventh straight segment 37 are arranged opposite to each other. The seventh straight segment 37 connects to the welding part 1. By setting multiple straight segments and curved segments, this segmented and curved combination structure provides rich deformation possibilities for the intermediate deformation section. When positional deviations occur during actual installation, each segment can cooperate to deform. This structure can better adapt to positional deviations between the connecting part and the conductive terminal, making the installation of conductive connectors more convenient. When errors generate stress, this multi-segment structure can distribute the stress to each straight segment and curved segment. The connection and transition between different segments can change the stress transmission path and mode, avoid stress concentration, and prevent excessive stress concentration from being transmitted to the circuit board pads, ensuring the stability and reliability of the circuit board.

[0022] In one possible embodiment, at least one of the solder feet of the welding part 1 has a different size than the other solder feet. The solder feet are used for soldering connections to the circuit board. To prevent incorrect orientation during installation, the solder feet are designed with different sizes. During soldering, the operator can quickly and accurately determine the soldering direction based on the size of the solder feet, improving installation efficiency and accuracy.

[0023] In one possible embodiment, the conductive connector is integrally stamped. This eliminates the need for welding, pressing, or other processes, resulting in low cost.

[0024] In this embodiment of the application, a circuit board employs the conductive connectors described in this embodiment of the application.

[0025] Taking a certain industrial automation control equipment as an example, this equipment has high requirements for dustproof, waterproof, and safety regulations, and its internal circuit board needs to transmit high current to external conductive terminals. Using the conductive connector of this embodiment, during installation, the anti-foolproof solder feet of the welding part 1 make the welding operation more convenient and accurate, reducing rework caused by installation errors. The connection between the connecting part 2 and the bolt holes of the conductive terminals is tight, ensuring the stability of power transmission. During installation, due to certain manufacturing errors, the corrugated structure of the intermediate deformation part 3 plays an important role. It adapts to the errors through its own deformation, allowing for smooth installation, and absorbs the stress generated by the errors, preventing stress from being transmitted to the circuit board's solder pads, thus protecting the circuit board's solder pads.

[0026] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

Claims

1. A conductive connector, characterized in that, It includes a welding part (1), a connecting part (2), and an intermediate deformable part (3) that connects the welding part (1) and the connecting part (2); The welding part (1) includes multiple welding legs; The connecting part (2) is provided with a fixing hole (4); The intermediate deformable part (3) has a corrugated structure.

2. The conductive connector according to claim 1, characterized in that, The intermediate deformation portion (3) includes at least one protruding structure and at least one recessed structure.

3. The conductive connector according to claim 2, characterized in that, The intermediate deformation section (3) includes a first straight segment (31), a second curved segment (32), a third straight segment (33), a fourth curved segment (34), a fifth straight segment (35), a sixth curved segment (36), and a seventh straight segment (37) connected in sequence. The first straight segment (31) connects to the connecting part (2); The first straight line segment (31) and the third straight line segment (33) are arranged opposite to each other; The third straight segment (33) and the fifth straight segment (35) are set relative to each other; The fifth straight segment (35) and the seventh straight segment (37) are arranged opposite to each other; The seventh straight segment (37) is connected to the welding part (1).

4. The conductive connector according to claim 1, characterized in that, At least one of the weld feet of the welded part (1) has a different size than the other weld feet.

5. The conductive connector according to claim 1, characterized in that, The conductive connector is integrally stamped.

6. A circuit board, characterized in that: The conductive connector as described in any one of claims 1 to 5 is used.

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