Anti-fracture connection structure between plug-in element and circuit board

Abstract

The utility model provides an anti-fracture connection structure between a plugging element and a circuit board. The anti-fracture connection structure comprises the circuit board, the plugging element connected to the circuit board and a jumper wire used for reinforcing the plugging element. The circuit board is provided with an element bonding pad, a main jumper wire bonding pad and an auxiliary jumper wire bonding pad. The plug-in element comprises a pin inserted into an element bonding pad; two ends of the jumper wire are respectively inserted into the main jumper wire bonding pad and the auxiliary jumper wire bonding pad; the jumper wire is inserted into one end of the main jumper wire bonding pad and is fixedly connected with the circuit board together with the pin, so that the pin is electrically connected with the jumper wire; the circuit board is provided with a circuit track used for conducting among different bonding pads, one end, inserted into the auxiliary jumper bonding pad, of the jumper and the circuit track are fixedly connected to the circuit board together, and the jumper is electrically connected with the circuit track. The utility model has the advantages of high stability and fracture prevention between the plugging element and the circuit board.

Description

A break-proof connection structure between connector components and circuit boards Technical Field

[0001] This utility model relates to the technical field of circuit board connection, and in particular to a connection structure between a connector and a circuit board that prevents breakage. Background Technology

[0002] Audio products come in a variety of appearances and functions, with each design varying according to specific needs. However, they are typically equipped with external connection components such as RCA connectors, microphone sockets, speaker output connectors, 3.5mm headphone jacks, and potentiometers. During circuit board (PCB) design, these connection components must be fixed to the board to ensure proper circuit continuity, allowing the audio system to operate normally over extended periods.

[0003] Currently, the connection between connector components and circuit boards typically employs soldering technology, which involves solid-state soldering of the connector component's leads to the pads on the circuit board. However, during actual production, when using a soldering iron or wave soldering machine for high-temperature heating, the copper foil layer may warp or curl due to thermal expansion and temperature changes. This stresses the connection point between the connector component's leads and the circuit board traces, increasing the risk of lead breakage. This can lead to loosening or poor insertion of component leads, and may even result in problems such as no sound or mono sound. In severe cases, it can even cause the pads to detach. This significantly affects the stability and reliability of electrical connections, which is the root cause of the poor contact problems frequently mentioned in user feedback.

[0004] To address these issues, engineers reinforced the pins of connectors by coating the copper foil pins on the circuit board with tin, creating a thicker tin layer on the component traces. However, this thicker tin layer only provides surface reinforcement and has limited practical effectiveness.

[0005] To address the above pain points, the industry urgently needs to develop a connection structure that prevents breakage between connector components and circuit boards. Summary of the Invention

[0006] To address the problem of easy breakage between existing connectors and circuit boards, this invention provides a highly stable connection structure that prevents breakage between connectors and circuit boards.

[0007] This utility model provides a break-proof connection structure between a connector element and a circuit board, which adopts the following technical solution:

[0008] A break-proof connection structure between a connector element and a circuit board includes a circuit board, a connector element connected to the circuit board, and jumpers for reinforcing the connector element.

[0009] The circuit board has component pads, main jumper pads, and auxiliary jumper pads; the connector includes pins that are inserted into the component pads; the two ends of the jumper are respectively inserted into the main jumper pad and the auxiliary jumper pad; one end of the jumper inserted into the main jumper pad is fixedly connected to the circuit board along with the pin, so that the pin is electrically connected to the jumper; the circuit board is provided with circuit tracks for conducting electricity between different pads, and one end of the jumper inserted into the auxiliary jumper pad is fixedly connected to the circuit track along with the circuit track, so that the jumper is electrically connected to the circuit track.

[0010] By adopting the above technical solution, during use, the pins of the connector are electrically connected to the jumper wire, and the jumper wire is electrically connected to the circuit track, enabling the connector to be electrically connected to other components on the circuit board. The jumper wire reinforces the pins of the connector, stably achieving the required function. When the pins of the connector are subjected to external forces (such as insertion / removal operations or vibration), the force on the connector is distributed to the jumper wire, significantly reducing the risk of breakage at the pin solder joints. At the same time, the jumper wire, through its rigidity, shares part of the stress, thereby reducing the direct impact on the pins of the connector when subjected to external forces. Even if the connector becomes loose, it will not cause fatal problems such as poor contact, improving product quality and reducing customer return rates.

[0011] Preferably, the circuit board is a single-sided circuit board.

[0012] By adopting the above technical solutions, single-sided panels have the advantages of low cost, low complexity and short production cycle, making them suitable for large-scale production and able to meet the basic needs of conventional electronic devices.

[0013] Preferably, the jumper is U-shaped.

[0014] By adopting the above technical solution, the U-shaped structure and connection method of the jumper make the jumper form a bridge-like support structure, ensuring the stability between the jumper and the circuit board and the ability to reinforce the pins.

[0015] Preferably, the jumper wire has a circular cross-section and a diameter of 0.5 mm.

[0016] By adopting the above technical solution, it is ensured that the thickness of the jumper wire can withstand a certain deformation and is not easily broken.

[0017] Preferably, the jumper is a segment made of copper.

[0018] By adopting the above technical solutions, copper has excellent conductivity. Using copper wire can ensure efficient transmission of signals or current in the circuit, reduce resistance and energy loss, and copper wire has good mechanical strength, making it less prone to breakage or damage, which helps to enhance the stability and durability of the overall structure. In addition, copper wire has good thermal conductivity, which helps to dissipate heat quickly, prevent the circuit from overheating, and ensure the stable operation of the plug-in components, especially in high-frequency or high-current application scenarios.

[0019] Preferably, the component pads, main jumper pads, and auxiliary jumper pads are all through-hole pads.

[0020] By adopting the above technical solutions, through-hole pads can provide stronger mechanical connections and more reliable electrical contacts, thereby improving welding strength and durability.

[0021] Preferably, the component pads, main jumper pads, and auxiliary jumper pads are all circular or elliptical in shape.

[0022] By adopting the above technical solutions, the design of circular or elliptical solder pads can achieve uniform stress distribution and improve welding strength.

[0023] Preferably, the center of the main jumper pad is about 1.5 mm away from the center of the component pad; the center of the auxiliary jumper pad is about 8 mm away from the center of the main jumper pad.

[0024] By adopting the above technical solution, a 1.5 mm spacing achieves joint reinforcement of weld points, and an 8 mm spacing forms an effective lever arm, jointly improving tensile strength and torsional performance.

[0025] Preferably, there is at least one pin, and the component pads, main jumper pads, and auxiliary jumper pads are all opened according to the number of pins, and the jumpers and circuit tracks are all set according to the number of pins.

[0026] By adopting the above technical solution, installation and connection are performed according to the actual number of pins, and multiple pins are connected to jumpers, further enhancing the overall anti-breakage performance.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] When the pins of a connector are subjected to external forces (such as insertion / removal operations or vibration), the force on the connector is distributed to the jumper wire, which significantly reduces the risk of breakage at the pin solder joints. At the same time, the jumper wire shares part of the stress through its rigidity, thereby reducing the direct impact on the pins of the connector when subjected to external forces. Even if the connector becomes loose, it will not cause fatal problems such as poor contact.

[0029] The component pads, main jumper pads, and auxiliary jumper pads are all circular or elliptical in shape. The circular or elliptical pad design can ensure uniform stress distribution and improve welding strength.

[0030] Jumper wires simultaneously serve three functions: mechanical support, current conduction, and thermal management. They provide a new solution for electronic assembly, preventing fatal problems such as poor contact (silent audio products) even if connectors become loose, thus improving product quality and reducing customer return rates. Attached Figure Description

[0031] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 is a schematic diagram of the overall structure of an embodiment of this utility model.

[0033] Figure 2 is a schematic diagram of the circuit track structure in an embodiment of this utility model.

[0034] The component labels are as follows: 1. Circuit board; 2. Connector component; 21. Pin; 3. Jumper; 4. Component pad; 5. Auxiliary jumper pad; 6. Main jumper pad; 7. Circuit track. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to Figures 1 and 2 of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0036] A break-proof connection structure between a connector element and a circuit board includes a circuit board 1, a connector element 2 connected to the circuit board 1, and a jumper wire 3 for reinforcing the connector element 2.

[0037] In this embodiment, circuit board 1 is a single-sided circuit board. Single-sided boards have the advantages of low cost, low complexity and short production cycle, making them suitable for large-scale production and able to meet the basic requirements of conventional electronic devices.

[0038] The connector 2 includes at least one pin 21. In this embodiment, the pin 21 is inverted L-shaped, and the short side of the L-shape of the pin 21 is parallel to the circuit board 1. The circuit board 1 has a component pad 4, which is a through-hole pad. Through-hole pads are a conventional type of pad in the prior art. Through-hole pads are used for inserting the pin 21 and soldering it. Through-hole pads provide stronger mechanical connections and more reliable electrical contacts, improving soldering strength and durability; therefore, further details are omitted. The component pad 4 is circular or elliptical in shape and extends through both the front and rear surfaces of the circuit board 1. The long side of the L-shape of the pin 21 is inserted into and extends out of the component pad 4.

[0039] Circuit board 1 has a main jumper pad 6 and an auxiliary jumper pad 5, both of which are through-hole pads. The main jumper pad 6 is circular or elliptical in shape, and it extends through both the front and back sides of circuit board 1. The center of the main jumper pad 6 is approximately 1.5 mm away from the center of the component pad 4, and the main jumper pad 6 is connected to the component pad 4. The auxiliary jumper pad 5 is also circular or elliptical in shape, and it extends through both the front and back sides of circuit board 1. The center of the auxiliary jumper pad 5 is approximately 8 mm away from the center of the main jumper pad 6, and the auxiliary jumper pad 5 is not connected to the main jumper pad 6.

[0040] Jumper 3 is U-shaped with a circular cross-section and a diameter of 0.5 mm, ensuring it can withstand certain deformation without easily breaking. One end of jumper 3 is inserted into and extends out of the main jumper pad 6. The end of jumper 3 inserted into the main jumper pad 6 is fixedly connected to the circuit board 1 together with pin 21. Specifically, jumper 3 and pin 21 are fixedly connected to the circuit board 1 by soldering between the component pad 4 and the main jumper pad 6, ensuring that the soldering areas of jumper 3 and pin 21 overlap to form a joint solder joint (similar to "solder joint thickening"), enhancing local mechanical strength and creating a stable electrical connection between pin 21 and jumper 3.

[0041] On the side of circuit board 1 opposite to connector 2, there is a circuit track 7 for conducting electricity between different pads. The circuit track 7 surrounds the auxiliary jumper pad 5. The other end of jumper 3 is inserted into and extends out of the auxiliary jumper pad 5. The end of jumper 3 extending out of the auxiliary jumper pad 5 is fixedly connected to circuit board 1 together with the circuit track 7. Specifically, the jumper 3 is fixedly connected to the circuit track 7 by soldering in the auxiliary jumper pad 5, thus ensuring the normal operation of the circuit. In addition, the jumper 3 between the auxiliary jumper pad 5 and the main jumper pad 6 provides a longer lever arm, allowing jumper 3 to more effectively resist the torque or tension of external forces on pin 21.

[0042] Jumper 3 is made of copper wire. Copper has excellent conductivity, and using copper wire can ensure efficient transmission of signals or current in the circuit, reduce resistance and energy loss. In addition, copper wire has good mechanical strength and is not easy to break or be damaged, which helps to enhance the stability and durability of the overall structure. Furthermore, copper wire has good thermal conductivity, which helps to dissipate heat quickly, prevent the circuit from overheating, and ensure the stable operation of the connector 2, especially in high-frequency or high-current application scenarios.

[0043] The U-shaped structure and connection method of jumper 3 form a bridge-like support structure, ensuring stability between jumper 3 and circuit board 1 and reinforcing the pins 21. When the pins 21 of the connector 2 are subjected to external forces (such as insertion / removal operations or vibration), the shear force and torque originally concentrated at the solder joints of pins 21 are transformed into tensile or compressive stress on the entire jumper 3. That is, the force on the connector 2 is distributed to jumper 3, significantly reducing the risk of breakage at the solder joints of pins 21. At the same time, jumper 3 shares some of the stress through its rigidity, thus cleverly utilizing the principle of structural stress dispersion and material rigidity support when subjected to external forces, reducing direct impact on the pins 21 of the connector 2, and significantly improving the connection reliability of the connector 2 while maintaining the low cost of a single-sided board. Furthermore, when the pins 21 are subjected to tensile force, the jumper 3 (approximately 8 mm) between the auxiliary jumper pad 5 and the main jumper pad 6 can generate a reverse support force through the lever arm action.

[0044] There are three pins 21, which are evenly spaced. The component pads 4, main jumper pads 6, and auxiliary jumper pads 5 each have three corresponding pins 21. The three pins 21 pass through the three component pads 4 one by one, which can quickly determine the position of the component 2 for easy positioning and installation. Similarly, there are three jumpers 3 and three circuit rails 7 corresponding to the number of pins 21. The three jumpers 3 extend into the three main jumper pads 6 one by one, and the jumpers 3 and the pins 21 are connected to the circuit board 1 by soldering. The ends of the three jumpers 3 away from the pins 21 extend into the three auxiliary jumper pads 5 one by one. The three circuit rails 7 surround the three auxiliary jumper pads 5 one by one, and the three jumpers 3 are connected to the circuit board 1 by soldering and are electrically connected to the circuit rails 7, further enhancing the overall anti-breakage performance.

[0045] The implementation principle of this application is as follows: In use, the pin 21 of the connector element 2 is electrically connected to the jumper 3, and the jumper 3 is electrically connected to the circuit track 7, so that the connector element 2 is electrically connected to other components on the circuit board 1. The U-shaped structure and connection method of the jumper 3 reinforce the pin 21 of the connector element 2, and stably realize the required function.

[0046] When the pin 21 of the connector 2 is subjected to external force (such as insertion / removal operation or vibration), the force on the connector 2 is distributed to the jumper 3, which significantly reduces the risk of breakage at the solder joint of the pin 21. At the same time, the jumper 3 shares part of the stress through its rigidity, thereby reducing the direct impact on the pin 21 of the connector 2 when subjected to external force.

[0047] Jumper 3 simultaneously serves three functions: mechanical support, current conduction, and thermal management, providing a new solution for electronic assembly. Even if the connector becomes loose, it will not cause fatal problems such as poor contact (silent audio products), thus improving product quality and reducing customer return rates.

[0048] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A break-resistant connection structure between a connector and a circuit board, characterized in that: The device includes a circuit board (1), a connector (2) connected to the circuit board (1), and a jumper (3) for reinforcing the connector (2). The circuit board (1) has component pads (4), a main jumper pad (6), and an auxiliary jumper pad (5). The connector (2) includes a pin (21) that is inserted into the component pad (4). The two ends of the jumper (3) are respectively inserted into the main jumper pad (6) and the auxiliary jumper pad (5). One end of the jumper (3) inserted into the main jumper pad (6) is fixedly connected to the circuit board (1) together with the pin (21), so that the pin (21) is electrically connected to the jumper (3). The circuit board (1) is provided with a circuit track (7) for conducting electricity between different pads. One end of the jumper (3) inserted into the auxiliary jumper pad (5) is fixedly connected to the circuit board (1) together with the circuit track (7), so that the jumper (3) is electrically connected to the circuit track (7).

2. The anti-breakage connection structure between a connector element and a circuit board according to claim 1, characterized in that: The circuit board (1) is a single-sided circuit board.

3. The anti-breakage connection structure between a connector and a circuit board according to claim 1, characterized in that: The jumper (3) is U-shaped.

4. The anti-breakage connection structure between a connector element and a circuit board according to claim 1, characterized in that: The jumper wire (3) has a circular cross-section and a diameter of 0.5 mm.

5. The anti-breakage connection structure between a connector element and a circuit board according to claim 1, characterized in that: The jumper (3) is a segment made of copper.

6. The anti-breakage connection structure between a connector element and a circuit board according to claim 1, characterized in that: The component pad (4), main jumper pad (6) and auxiliary jumper pad (5) are all through-hole pads.

7. The anti-breakage connection structure between a connector and a circuit board according to claim 1, characterized in that: The component pads (4), main jumper pads (6) and auxiliary jumper pads (5) are all round or elliptical in shape.

8. The anti-breakage connection structure between a connector element and a circuit board according to claim 7, characterized in that: The center of the main jumper pad (6) is about 1.5 mm away from the center of the component pad (4); the center of the auxiliary jumper pad (5) is about 8 mm away from the center of the main jumper pad (6).

9. The anti-breakage connection structure between a connector element and a circuit board according to claim 1, characterized in that: There is at least one pin (21). The component pad (4), main jumper pad (6) and auxiliary jumper pad (5) are all opened according to the number of pins (21). The jumper (3) and circuit track (7) are all set according to the number of pins (21).

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