Circuit jumper structure and single-sided flexible circuit board

Abstract

The utility model relates to the technical field of circuits, in particular to a circuit jumper structure and a single-sided flexible circuit board, and the circuit jumper structure comprises a printed circuit board which is provided with a first circuit area, a circuit connection area and a second circuit area which are connected in sequence; the top surface and the bottom surface of the first circuit area are provided with first circuit discs which are communicated with each other, the top surface and the bottom surface of the second circuit area are provided with second circuit discs which are communicated with each other, and the first circuit discs and the second circuit discs are provided with copper plating holes; the circuit connection area comprises a first transmission line, a fuse and a second transmission line which are connected in sequence, the first transmission line is provided with a first circuit transmission disc electrically connected with the first circuit disc, and the second transmission line is provided with a second circuit transmission disc electrically connected with the second circuit disc. After the first circuit board and the second circuit board are fixed to the first electrical circuit and the second electrical circuit of the single-face flexible circuit board respectively, stable transmission of electrical signals and current can be achieved, the overall structure is simplified, and therefore cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of circuit, especially a kind of circuit jumper structure and single-sided flexible circuit board. BACKGROUND

[0002] Circuit jumper structure is used to connect electrical circuit of different levels, so as to realize the transmission of electrical signal and current, and can flexibly adjust the layout of circuit, so it is mostly applied in complex circuit system.

[0003] In some related technologies, for example, Chinese patent (publication number CN218735148U) discloses a new type of circuit board patch jumper, which comprises a circuit board patch jumper, a front copper hole and a rear copper hole are opened in the circuit board patch jumper, the front copper hole penetrates the upper conductive copper foil front end portion, the middle insulating substrate front end edge portion and the lower conductive copper foil front end portion from top to bottom in sequence, and the rear copper hole penetrates the upper conductive copper foil rear end portion, the middle insulating substrate rear end edge portion and the lower conductive copper foil rear end portion from top to bottom in sequence; a front copper filling part is arranged in the front copper hole, and the upper conductive copper foil front end portion, the front copper filling part and the lower conductive copper foil front end portion are sequentially and electrically connected; a rear copper filling part is arranged in the rear copper hole, and the upper conductive copper foil rear end portion, the rear copper filling part and the lower conductive copper foil rear end portion are sequentially and electrically connected; it can be seen that the overall structure of the jumper structure is relatively complex, and it needs to go through multiple complex production processes to complete, which increases the complexity and cost of the manufacturing process. SUMMARY

[0004] In order to overcome the deficiencies of the prior art, the utility model embodiment provides a kind of circuit jumper structure and single-sided flexible circuit board.

[0005] The technical scheme adopted by the utility model to solve its technical problems is:

[0006] A kind of circuit jumper structure, the circuit jumper structure includes:

[0007] Printed circuit board, the surface of the printed circuit board is provided with first circuit area, circuit connection area and second circuit area connected in sequence;The top surface and bottom surface of the first circuit area are both provided with first circuit disc that is interconnected, the top surface and bottom surface of the second circuit area are both provided with second circuit disc that is interconnected, and the first circuit disc and second circuit disc are both provided with a plurality of copper-plated holes;

[0008] The circuit connection area includes first transmission line, fuse and second transmission line connected in sequence, one end of the first transmission line is provided with first circuit transmission disc for electrically connecting with the first circuit disc, and one end of the second transmission line is provided with second circuit transmission disc for electrically connecting with the second circuit disc.

[0009] As a preferred technical scheme of the utility model, the printed circuit board is provided with a first placing groove, a groove and a second placing groove which are communicated in sequence.

[0010] The first circuit area is arranged in the first placing groove, the second circuit area is arranged in the second placing groove, and the circuit connecting area is arranged in the groove.

[0011] As a preferred technical scheme of the utility model, the first circuit disc of the bottom surface of the first circuit area and the second circuit disc of the bottom surface of the second circuit area are both provided with SMT patches.

[0012] As a preferred technical scheme of the utility model, the side portions of the printed circuit board are all concavely provided with a plurality of anti-offset grooves.

[0013] As a preferred technical scheme of the utility model, the first circuit area and the second circuit area are both penetrated by an observation hole.

[0014] As a preferred technical scheme of the utility model, the fuse is arranged in a snake shape.

[0015] Another technical scheme adopted by the utility model to solve the technical problem is:

[0016] A single-sided flexible circuit board, the flexible circuit board comprises:

[0017] The flexible circuit board main body and the circuit jumper structure of any one of the above are provided with a first electrical circuit and a second electrical circuit on one end surface, one of the first circuit discs is fixed to the first electrical circuit, and one of the second circuit discs is fixed to the second electrical circuit.

[0018] Compared with the prior art, the utility model has the beneficial effects that:

[0019] 1. When the first circuit disc of the bottom surface of the first circuit area is fixed to the first electrical circuit on the flexible circuit board and the second circuit disc of the bottom surface of the second circuit area is fixed to the second electrical circuit on the flexible circuit board, the circuit connecting area arranged between the first circuit area and the second circuit area can realize the transmission of electrical signals and currents, not only the stable transmission of electrical signals and currents can be realized, but also the overall structure is simplified, thereby reducing the production cost.

[0020] 2. Compared with the traditional double-sided flexible circuit, the flexible circuit board main body of the utility model embodiment is single-sided, so that the production cost is reduced; after the first circuit disc of the bottom surface of the first circuit area and the second circuit disc of the bottom surface of the second circuit area are respectively fixed to the first electrical circuit and the second electrical circuit of the flexible circuit board main body, the transmission of electrical signals and currents can be realized, thereby simplifying the design requirement of the overall circuit and also reducing the production cost. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor on the premise of not paying creative labor.

[0022] Figure 1 is a structural diagram of the circuit jumper structure of the embodiment of the present application.

[0023] Figure 2 is Figure 1 the local enlarged view of A in the figure.

[0024] Figure 3 is Figure 2 the structural section view of

[0025] Figure 4 is a structural diagram of the circuit jumper structure of the embodiment of the present application.

[0026] Figure 5 is a structural diagram of the circuit jumper structure and the single-sided flexible circuit board of the embodiment of the present application.

[0027] the reference numerals in the figure

[0028] 1, circuit jumper structure; 10, printed circuit board; 101, anti-offset slot; 102, observation hole; 11, first circuit area; 111, first circuit disc; 12, circuit connection area; 121, first transmission line; 122, fuse; 123, second transmission line; 13, second circuit area; 14, copper-plated hole; 15, first placement slot; 16, groove; 17, second placement slot;

[0029] 2, single-sided flexible circuit board; 21, first electrical circuit; 22, second electrical circuit. DETAILED DESCRIPTION

[0030] In order to make the technical problems, technical schemes and beneficial effects to be solved in the present application more clearly understood, the present application will be further described in detail in the following with reference to the drawings and embodiments.

[0031] It should be understood that the specific embodiments described herein are only used to explain the present application and not to limit the present application.

[0032] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element.

[0033] When a component is said to be "connected to" another component, it can be directly connected to the other component or indirectly connected to that other component.

[0034] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0036] In the description of this application, "multiple" means two or more, unless otherwise expressly and specifically defined.

[0037] Example 1:

[0038] The following describes in detail the specific structure of a circuit jumper structure 1 provided by an embodiment of this utility model, according to the appendix. Figures 1-4 As shown, the specific structure of the circuit jumper structure 1 includes a printed circuit board 10.

[0039] according to Figure 1 As shown, the surface of the printed circuit board 10 is provided with a first circuit area 11, a circuit connection area 12, and a second circuit area 13 connected in sequence; the top and bottom surfaces of the first circuit area 11 are provided with interconnected first circuit disks 111, and the top and bottom surfaces of the second circuit area 13 are provided with interconnected second circuit disks. Both the first circuit disk 111 and the second circuit disk are provided with multiple copper-plated holes 14; the circuit connection area 12 includes a first transmission line 121, a fuse 122, and a second transmission line 123 connected in sequence. One end of the first transmission line 121 is provided with a first circuit transmission disk for electrical connection with the first circuit disk 111, and one end of the second transmission line 123 is provided with a second circuit transmission disk for electrical connection with the second circuit disk.

[0040] Specifically, the first electrical circuit 21 fixed on the flexible circuit board through the first circuit board 111 of the first circuit area 11, and the second electrical circuit 22 fixed on the flexible circuit board through the second circuit board of the second circuit area 13, due to the circuit connecting area 12 arranged between the first circuit area 11 and the second circuit area 13, thus can play a role in transmitting electrical signals from the first electrical circuit 21 of the flexible circuit board to the second electrical circuit 22, so as to realize the transmission of electrical signals.

[0041] For example, in operation, when the electrical signal is output through the first electrical circuit 21 of the flexible circuit board, the electrical signal first passes through the first circuit board 111 located at the bottom and top surface of the first circuit area 11, due to the first transmission line 121, fuse 122 and second transmission line 123 of the circuit connecting area 12 are integrally formed, and one end of the first transmission line 121 is provided with a first circuit transmission disc for electrical connection with the first circuit board 111, and one end of the second transmission line 123 is provided with a second circuit transmission disc for electrical connection with the second circuit board, thus the electrical signal can be transmitted from the first circuit transmission disc of the first transmission line 121, through the fuse 122 to the second circuit transmission disc of the second transmission line 123, and then the electrical signal passes through the second circuit board located at the top and bottom surface of the second circuit area 13, and finally transmitted to the second electrical circuit 22 of the flexible circuit board, at this time, the electrical connection between the first electrical circuit 21 and the second electrical circuit 22 on the flexible circuit board is realized, and through this connection mode, it can be ensured that the electrical signal can be smoothly transmitted.

[0042] According to Figure 2 and Figure 3 As shown in further embodiments, since the first circuit board 111 and the second circuit board are both provided with a plurality of copper-plated holes 14, the copper-plated holes 14 can play a role in transmitting electrical signals, thereby ensuring the establishment of electrical connection between the top and bottom circuit boards to enable the electrical signal to be quickly and effectively conducted, and this scheme can save a large number of wiring processes required by traditional wiring methods, simplify the manufacturing process and reduce production costs.

[0043] It should be noted that the inner wall of the copper-plated hole 14 has high conductivity due to the copper plating treatment, so it can realize low-impedance transmission of electrical signals.

[0044] It is also necessary to point out that since the fuse 122 is used to protect the safety of the circuit, that is, when the fuse 122 bears a certain current capacity, the current in the circuit exceeds the set safety value, the fuse 122 is fused due to overheating, and the circuit is cut off to prevent the current from being too large to cause an accident. Therefore, the fuse 122 has a specific fusing characteristic. When the current is within the normal range, the fuse 122 can continue to transmit the current. Once the current continuously exceeds the set safety value during transmission, the fuse 122 will be fused to prevent the current from continuing to transmit, thereby playing a role in protecting the safety of the entire circuit.

[0045] It can be understood that the fuse 122 of the embodiment of the utility model is composed of a low-melting-point metal wire or alloy wire. For example, when the current passes through, the fuse 122 composed of a metal wire generates heat due to the existence of resistance. When the current continuously exceeds the preset safety value, the fuse 122 reaches the fusing point and automatically disconnects the circuit.

[0046] In further embodiments, the fuse 122 is arranged in a serpentine shape.

[0047] Specifically, since the fuse 122 is arranged in a serpentine shape, the fuse 122 in a serpentine shape has a faster fusing speed. That is, when the current is transmitted, the current continuously exceeds the preset safety value, and the fuse 122 in a serpentine shape can be fused rapidly to cut off the current from continuing to transmit. In addition, the fuse 122 in this shape has a delay characteristic. That is, when transmitting a higher current, the fuse 122 in a serpentine shape will not be fused immediately, but will be fused when the circuit exceeds the preset safety value for a period of time, ensuring that the fuse 122 in a curved shape will not be fused due to a temporary excessive current.

[0048] In some specific embodiments, the printed circuit board 10 is provided with a first placement groove 15, a groove 16 and a second placement groove 17 which are sequentially communicated. The first circuit area 11 is arranged in the first placement groove 15, the second circuit area 13 is arranged in the second placement groove 17, and the circuit connection area 12 is arranged in the groove 16.

[0049] Specifically, the first circuit area 11, the second circuit area 13 and the circuit connecting area 12 can be positioned and assembled by the first placing groove 15 for accommodating the first circuit area 11, the second placing groove 17 for accommodating the second circuit area 13 and the groove 16 for accommodating the circuit connecting area 12. In addition, the first circuit area 11, the second circuit area 13 and the circuit connecting area 12 can be prevented from shaking due to external force (such as vibration and impact) because the side wall of the first circuit area 11 is tightly combined with the groove wall of the first placing groove 15, the side wall of the second circuit area 13 is tightly combined with the groove wall of the second placing groove 17 and the side wall of the circuit connecting area 12 is tightly combined with the groove wall of the groove 16.

[0050] According to Figure 2 As shown in FIG. 10, in some specific embodiments, the side of the printed circuit board 10 is concavely provided with a plurality of anti-offset grooves 101.

[0051] Specifically, the first circuit area 11 and the second circuit area 13 can be effectively guided to the assembly position by the anti-offset grooves 101 of the side of the printed circuit board 10. That is, when the first circuit disc 111 on the bottom of the first circuit area 11 is fixed, the production personnel can take the anti-offset grooves 101 as the reference point, so that the production personnel can determine the correct fixing position and direction according to the anti-offset grooves 101, and the first circuit disc 111 on the bottom of the first circuit area 11 can be correctly aligned with the first electrical circuit 21 on the flexible circuit board, thereby avoiding the misalignment or offset of the first circuit disc 111 on the bottom of the first circuit area 11 when fixed to the first electrical circuit 21 on the flexible circuit board.

[0052] In some specific embodiments, the first circuit disc 111 on the bottom of the first circuit area 11 and the second circuit disc on the bottom of the second circuit area 13 are provided with SMT patches.

[0053] Specifically, the first circuit pad 111 on the bottom surface of the first circuit area 11 and the second circuit pad on the bottom surface of the second circuit area 13 are mounted using SMT (Surface Mount Technology) to fix the first circuit pad 111 and the second circuit pad to the first electrical circuit 21 and the second electrical circuit 22 of the flexible circuit board, respectively. This ensures tight contact between them. During reflow soldering, the solder paste covering the front side of the SMT pad is heated to a molten state, causing a chemical reaction between the solder balls and the resin material in the solder paste, forming a strong solder joint. For example, by heating the solder paste to a liquid state, a solder joint is formed between the circuit pad and the electrical circuit. This achieves high-precision mounting of the first circuit pad 111 on the bottom surface of the first circuit area 11 and the second circuit pad on the bottom surface of the second circuit area 13, reducing connection errors and assembly costs. It also ensures electrical connection between the first circuit pad 111 on the bottom surface of the first circuit area 11 and the first electrical circuit 21, and between the second circuit pad on the bottom surface of the second circuit area 13 and the second electrical circuit 22, improving the stability of the entire circuit transmission.

[0054] according to Figures 2-3 As shown, in some specific embodiments, both the first line area 11 and the second line area 13 have observation holes 102 through them.

[0055] Specifically, since the first circuit pad 111 on the bottom surface of the first circuit area 11 and the second circuit pad on the bottom surface of the second circuit area 13 are respectively soldered to the first electrical circuit 21 and the second electrical circuit 22 by SMT components, during the soldering process, the solder paste melts and flows after being heated, thereby forming a solder joint. Therefore, the changes in this process can be observed in real time through the observation hole 102 to judge the quality of the soldering.

[0056] For example, staff can clearly see the distribution of solder paste through the observation hole 102, including whether it is spread evenly, whether there is any flow or accumulation, etc. This makes it easier to detect and resolve soldering defects in a timely manner, such as weak solder joints, insufficient solder, or damage caused by overheating.

[0057] Example 2:

[0058] The following describes in detail the specific structure of a single-sided flexible circuit board 2 provided by an embodiment of this utility model, according to the appendix. Figure 5 As shown, the specific structure of the single-sided flexible circuit board 2 includes a flexible circuit board body and a circuit jumper structure 1 in any of the above embodiments. A first electrical line 21 and a second electrical line 22 are provided on one end face of the flexible circuit board body. A first circuit disk 111 on the bottom surface of the first circuit area 11 is fixed to the first electrical line 21, and a second circuit disk on the bottom surface of the second circuit area 13 is fixed to the second electrical line 22.

[0059] Since the circuit jumper structure 1 in the embodiment adopts all the technical solutions of all the above embodiments, the circuit jumper structure 1 can also bring the beneficial effects of the technical solutions of the above embodiments, which will not be repeated here.

[0060] Compared with the traditional double-sided flexible circuit, the flexible circuit board body of the present scheme is single-sided, thus reducing the production cost; after the first circuit disc 111 at the bottom of the first circuit area 11 and the second circuit disc at the bottom of the second circuit area 13 are respectively fixed on the first electrical circuit 21 and the second electrical circuit 22 of the flexible circuit board body, the transmission of electrical signals and current can be realized, the design requirement of the overall circuit is simplified, and the production cost is also reduced.

[0061] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can easily think of various equivalent modifications or replacements within the technical range disclosed by the present application, and these modifications or replacements should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A circuit jumper structure, characterized by, The circuit jumper structure comprises: A printed circuit board, a surface of the printed circuit board is provided with a first circuit area, a circuit connecting area and a second circuit area connected in sequence; the top surface and the bottom surface of the first circuit area are both provided with first circuit discs which are in communication with each other, the top surface and the bottom surface of the second circuit area are both provided with second circuit discs which are in communication with each other, and the first circuit discs and the second circuit discs are both provided with a plurality of copper-plated holes; The circuit connecting area comprises a first transmission line, a fuse and a second transmission line connected in sequence, one end of the first transmission line is provided with a first circuit transmission disc for electrically connecting with the first circuit disc, and one end of the second transmission line is provided with a second circuit transmission disc for electrically connecting with the second circuit disc.

2. The circuit jumper structure of claim 1, wherein, The printed circuit board is provided with a first placing groove, a recess and a second placing groove connected in sequence; The first circuit area is arranged in the first placing groove, the second circuit area is arranged in the second placing groove, and the circuit connecting area is arranged in the recess.

3. The circuit jumper structure of claim 1, wherein, The first circuit disc on the bottom surface of the first circuit area and the second circuit disc on the bottom surface of the second circuit area are both provided with SMT patches.

4. The circuit jumper structure of claim 1, wherein, The side of the printed circuit board is concavely provided with a plurality of anti-offset grooves.

5. The circuit jumper structure of claim 1, wherein, The first circuit area and the second circuit area are both provided with observation holes.

6. The circuit jumper structure of claim 1, wherein, The fuse is arranged in a snake shape.

7. A single-sided flexible circuit board, characterized by, The flexible circuit board comprises: A flexible circuit board main body and the circuit jumper structure according to any one of claims 1-6, one end surface of the flexible circuit board main body is provided with a first electrical circuit and a second electrical circuit, one of the first circuit discs is fixed to the first electrical circuit, and one of the second circuit discs is fixed to the second electrical circuit.

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