Conductor connection structure of PCB single-sided board

Abstract

The utility model discloses a conductor connecting structure of a single-sided PCB (printed circuit board), which comprises the single-sided PCB, a copper foil circuit layer is arranged on the front surface of the single-sided PCB, a copper foil circuit is not arranged on the back surface of the single-sided PCB, a through hole is arranged on the single-sided PCB, the through hole penetrates from the front surface of the single-sided PCB to the back surface of the single-sided PCB, a conductor plug-in is arranged in the through hole, and the conductor plug-in is connected with the conductor plug-in. The conductor plug-in comprises a plug-in pin and a plug-in connector, the plug-in pin is inserted into the through hole from the reverse side of the PCB single-sided board, extends to the front side of the PCB single-sided board and is connected with the copper foil circuit layer to form electrical conduction, and the plug-in connector is located on the reverse side of the PCB single-sided board and is connected with the electronic component. According to the utility model, the manufacturing of standard parts is realized, the production efficiency is improved, the production and PCB incoming material cost is reduced, and the requirement of positive and negative conversion of the electrical properties of the single-sided PCB can be well met.

Description

Technical Field

[0001] The utility model relates to a PCB single-sided board, in particular to a conductor connection structure of the PCB single-sided board. Background Art

[0002] A single-sided PCB is a printed circuit board with only one side covered with copper, and the other side does not have any circuit copper foil, that is, copper foil is only set on the front side of the single-sided PCB, and there is no copper foil on the back side. Since a single-sided PCB has only one layer of copper foil, the processing cost is low, and it is the best choice considering low cost. When the reverse conductor on a single-sided PCB needs to be connected to the front copper foil layer, the following methods are usually adopted:

[0003] 1. Connect to the reverse side of the PCB single-sided board through the plug-in pins. This method is to insert the pins of the component body from the reverse side to the copper foil layer for soldering. Because the pins of the component body have their own electrical properties, the electrical properties of the copper foil layer of the single-sided board can be introduced into the reverse side components. However, for SMD or components without plug-in pins, this electrical property conversion between the front and back sides cannot be achieved;

[0004] 2. Connect to the copper foil layer by punching vias. However, when punching vias to the reverse side of a single-sided PCB without a copper foil layer, the electrical connection cannot be conducted to the reverse layer because there is no copper sinking property in the hole of the single-sided PCB. If you want to achieve the electrical properties of the reverse layer with vias, the board needs to be changed to a double-sided board or a multi-layer board manufacturing process. This is equivalent to adding more layers on the basis of a single-sided board, and the corresponding cost has also increased a lot. Since a single-sided PCB has only one layer of copper foil, layout and wiring are difficult, and the layout of the circuit and the location of the components need to be considered. Some people who start planning to choose a single-sided PCB usually choose a multi-layer PCB design when they encounter that the layout and wiring space cannot be met or the reverse conductor components cannot be connected to the copper foil routing layer, but this will increase the PCB manufacturing cost. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A conductor connection structure of a PCB single-sided board includes a PCB single-sided board, wherein a copper foil circuit layer is provided on the front side of the PCB single-sided board, and no copper foil circuit is provided on the back side of the PCB single-sided board. A through hole is provided on the PCB single-sided board, and the through hole penetrates from the front side of the PCB single-sided board to the back side. A conductor plug-in is provided in the through hole, and the conductor plug-in includes a plug-in pin and a plug-in connector. The plug-in pin is inserted into the through hole from the back side of the PCB single-sided board and extends to the front side of the PCB single-sided board and is connected to the copper foil circuit layer to form electrical conduction. The plug-in connector is located on the back side of the PCB single-sided board, and the plug-in connector is connected to the electronic components on the back side of the PCB single-sided board.

[0008] As a further improvement, the plug-in pins of the conductor plug-in are fixed to the copper foil circuit layer by welding.

[0009] As a further improvement, the plug-in pin and the plug-in connector are an integrally formed structure.

[0010] As a further improvement, the plug-in connector is formed by bending and horizontally extending the upper end of the plug-in pin.

[0011] As a further improvement, the plug-in connector is pressed against the reverse side of the PCB single-sided board.

[0012] As a further improvement, the plug-in pin is inserted into the through hole and flush with the copper foil circuit layer, or a portion of the plug-in pin extends to the outside of the copper foil circuit layer and is exposed on the front side of the PCB single-sided board.

[0013] As a further improvement, the plug-in connector is a solid horizontal plate.

[0014] As a further improvement scheme, a screw hole is provided on the plug-in connector, and a screw hole is provided on the PCB single panel. A metal screw is locked in the screw hole. The screw is inserted into the screw hole of the PCB single panel and extends to the outside of the front side of the PCB single panel.

[0015] As a further improvement, the plug-in connector is of a regular shape.

[0016] As a further improvement, one pin of an electronic component is correspondingly connected to a conductor plug-in.

[0017] Compared with the prior art, the utility model has the following beneficial technical effects:

[0018] By setting a separate conductor plug-in, a standardized electronic component can be formed, which is convenient for batch production. The use of wave soldering automated production not only improves production efficiency and reduces production and PCB material costs, but also can well meet the needs of converting the electrical properties of the front and back sides of the PCB single-panel board;

[0019] The conductor plug-in can realize automated standardized assembly, and is not prone to assembly errors. For a single-sided PCB, it can conveniently realize electrical conduction between the electronic components on the back side of the single-sided PCB and the copper foil circuit layer on the front side. For electronic components with pins, electronic components without pins, and surface-mount components, the conductor plug-in of the utility model can be conveniently installed to realize the conversion of electrical properties between the back side and the front side, thereby expanding the applicability of the single-sided PCB, and making full use of the space on the back side of the single-sided PCB without the copper foil circuit layer to layout electronic components. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the top view of the structure of the utility model after assembly;

[0021] Figure 2 for Figure 1 AA section structure schematic diagram;

[0022] Figure 3 A schematic diagram of an embodiment of the conductor plug-in of the utility model;

[0023] Figure 4 This is a schematic diagram of another embodiment of the conductor plug-in of the present invention.

[0024] Reference numerals:

[0025] PCB single panel 1, copper foil circuit layer 2, conductor plug-in 3, plug-in pin 31, plug-in connector 32, electronic component 4, pins 41 and 42 of the electronic component, screw 5, through hole 6, screw hole 7, screw hole 8. DETAILED DESCRIPTION

[0026] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0027] In the description of the present utility model, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like are involved, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present 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" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0028] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 directly connected or indirectly connected 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 utility model can be understood according to specific circumstances.

[0029] Embodiment 1

[0030] refer to Figure 1-3As shown, a conductor connection structure of a PCB single panel includes a PCB single panel 1, a copper foil circuit layer 2 is provided on the front side of the PCB single panel 1, and no copper foil circuit is provided on the back side of the PCB single panel 1. A through hole 6 is provided on the PCB single panel 1, and the through hole 6 runs through from the front side of the PCB single panel 1 to the back side. A conductor plug-in 3 is provided in the through hole 6, and the conductor plug-in 3 includes a plug-in pin 31 and a plug-in connector 32. The plug-in pin 31 is inserted into the through hole 6 from the back side of the PCB single panel 1 and extends to the front side of the PCB single panel 1 and is connected to the copper foil circuit layer 2 to form electrical conduction. The plug-in connector 32 is located on the back side of the PCB single panel 1, and the plug-in connector 32 is connected to the electronic component 4 on the back side of the PCB single panel 1. The conductor plug-in is made of metal material and has electrical conduction performance. On the PCB single panel, the conductor plug-in is pre-assembled, and then the electronic components can be quickly and conveniently installed. Since there is no need to consider whether the electronic components have pins, and the electronic components can be directly assembled on the back side of the PCB single panel, it is not necessary to assemble them on the front side of the PCB single panel.

[0031] By setting the conductor plug-in 3, the back space of the PCB single-sided board 1 can be fully utilized, so that the back side of the PCB single-sided board 1 can be fully assembled with electronic components 4, especially for patch components and electronic components without pins. If these components are all installed on the front side of the PCB single-sided board, the number of components assembled on the PCB single-sided board will be relatively limited. Therefore, by using the conductor plug-in, the patch and electronic components without pins are assembled on the back side of the PCB single-sided board, and electrical conduction with the copper foil circuit layer on the front side of the PCB single-sided board can also be achieved, that is, the electrical properties of the front side of the PCB single-sided board are led to the back side by the conductor plug-in, thereby realizing the conversion of the electrical properties of the front side and the back side of the PCB single-sided board.

[0032] By setting the conductor plug-in 3 on the PCB single-sided board 1, the conversion of the electrical properties of the front and back sides is realized, so there is no need to consider the layout of the copper foil circuit layer on the front side of the PCB single-sided board, which reduces the layout difficulty and makes it easier to install electronic components on the back side of the PCB single-sided board. There is no need to consider whether the electronic components have pins, which reduces the layout difficulty, so that the PCB single-sided board can be equipped with more components, and the PCB single-sided board can be fully utilized to achieve similar uses as a multi-layer PCB board at a lower cost. The layout of the copper foil circuit layer on the front side of the PCB single-sided board is also more flexible.

[0033] The plug-in pin 31 and the plug-in connector 32 of the conductor plug-in 3 are an integrally formed structure, which is formed by directly bending the metal material during production. One end of the plug-in pin is bent horizontally and extended for a distance to form the plug-in connector.

[0034] There is a relatively fixed numerical range for the sizes of the plug-in pins 31 and the plug-in connectors 32 in the conductor plug-in 3. Therefore, the size of the through holes on the single-sided PCB board is fixed. Generally, the through holes are slightly larger than the plug-in pins to ensure that the plug-in pins can be inserted into the through holes.

[0035] Embodiment 2

[0036] refer to Figure 1-3 As shown, a conductor connection structure of a PCB single panel includes a PCB single panel 1, a copper foil circuit layer 2 is provided on the front side of the PCB single panel 1, and no copper foil circuit is provided on the back side of the PCB single panel 1. A through hole 6 is provided on the PCB single panel 1, and the through hole 6 runs through from the front side of the PCB single panel 1 to the back side. A conductor plug-in 3 is provided in the through hole 6, and the conductor plug-in 3 includes a plug-in pin 31 and a plug-in connector 32. The plug-in pin 31 is inserted into the through hole 6 from the back side of the PCB single panel 1 and extends to the front side of the PCB single panel 1 and is connected to the copper foil circuit layer 2 to form electrical conduction. The plug-in connector 32 is located on the back side of the PCB single panel 1, and the plug-in connector 32 is connected to the electronic component 4 on the back side of the PCB single panel 1. The conductor plug-in is made of metal material and has electrical conduction performance. The conductor plug-in 3 is in an inverted L shape, with the vertical part being the plug-in pin 31 and the horizontal part being the plug-in connector 32. The plug-in connector 32 is a horizontal flat surface, so the plug-in connector 32 is pressed and fixed to the back of the PCB single-sided board 1. After the plug-in pin 31 is inserted into the through hole 6, it extends from the through hole 6 to the front of the PCB single-sided board 1, and then connected to the copper foil circuit layer 2 on the front of the PCB single-sided board 1 by welding, thereby achieving electrical conduction. For the welding method, wave soldering is used to achieve automated production. During assembly, the through hole is first drilled on the PCB single-sided board, and then the plug-in pin of the conductor plug-in is inserted into the through hole by a manipulator device. After all the plug-ins are completed, wave soldering is used to achieve unified welding, thereby electrically conducting the plug-in pin of the conductor plug-in with the copper foil circuit layer on the front of the PCB single-sided board. Automated production can be used to improve production efficiency and reduce the cost of PCB incoming material production. The conductor plug-in can be formed as a standard part to reduce the difficulty of assembly and the error rate of assembly.

[0037] The electronic components 4 can be directly assembled on the surface of the plug-in connector 32, and the plug-in pins 31 lead the electrical power of the copper foil circuit layer 2 on the front side of the PCB single-sided board 1 to the inside of the electronic components, completing the electrical conduction between the back and front sides of the PCB single-sided board 1, and realizing the front and back conversion of electrical properties.

[0038] For the plug-in pin 31 extending from the through hole 6, it can extend all the way to the through hole 6 and reach the copper foil circuit layer 2, and keep flush with the copper foil circuit layer 2. Or the plug-in pin 31 extends to a part of the outside of the copper foil circuit layer 2. It is a better solution to lead the plug-in pin to the outside of the copper foil circuit layer, which can be better produced, does not need to be completely consistent with the thickness of the PCB single panel, and reduces the difficulty of production.

[0039] The electronic component 4 on the back of the PCB single-sided board 1 generally has a pin 41 and a pin 42, one positive and the other negative, so two conductor plug-ins are also provided to connect the two pins of the electronic component respectively. If it is a patch component, the plug-in connectors of the two conductor plug-ins can be connected to the positive and negative positions of the patch component respectively.

[0040] Embodiment 3

[0041] refer to Figure 3 As shown, a conductor connection structure of a PCB single-sided board includes a PCB single-sided board 1, wherein a copper foil circuit layer 2 is provided on the front side of the PCB single-sided board 1, and no copper foil circuit is provided on the back side of the PCB single-sided board 1. A through hole 6 is provided on the PCB single-sided board 1, and the through hole 6 passes through from the front side of the PCB single-sided board 1 to the back side. A conductor plug-in 3 is provided in the through hole 6, and the conductor plug-in 3 includes a plug-in pin 31 and a plug-in connector 32. The plug-in pin 31 is inserted into the through hole 6 from the back side of the PCB single-sided board 1 and extends to the front side of the PCB single-sided board 1 and is connected to the copper foil circuit layer 2 to form electrical conduction. The plug-in connector 32 is located on the back side of the PCB single-sided board 1, and the plug-in connector 32 is connected to the electronic component 4 on the back side of the PCB single-sided board 1. The conductor plug-in is made of metal material and has electrical conduction performance. The plug-in connector 32 is a horizontal flat plate, and the whole is a solid structure. At this time, the electronic component 4 can be directly mounted on the surface of the plug-in connector 32. Or refer to Figure 4 As shown, a screw hole 8 is provided on the plug-in connector 32, and a screw hole 7 corresponding to the screw hole 8 is provided on the PCB single-sided board 1. The setting position of the screw hole 7 needs to ensure that after the plug-in pin 31 of the conductor plug-in 3 is assembled, the screw hole 7 and the screw hole 8 are directly opposite to each other. A metal screw 5 is locked in the screw hole 8, and the screw 5 is inserted into the screw hole 7 of the PCB single-sided board 1 and extends to the front outside of the PCB single-sided board 7. The screw 5 can be used for grounding, and the screw does not contact the copper foil circuit layer.

[0042] On a single PCB board, different types of conductor plug-ins can be assembled at the same time. Figure 1 As shown, a conductor plug-in of a plug-in connector with a horizontal plate structure and a conductor plug-in of a plug-in connector with a circular structure are installed at the same time. The conductor plug-in can be flexibly assembled according to the electronic components to be assembled.

[0043] In addition, the plug-in connector can be set to a rectangular shape; Figure 3 The scheme shown; or the overall shape is round, such as Figure 4 The scheme shown. Setting it to a circular shape can be more conducive to assembling screws. In addition to the two shapes mentioned above, other shapes can also be set to meet different needs.

[0044] The utility model aims at improving the application breadth of a PCB single-sided board in which a copper foil circuit is only arranged on the front side and no copper foil circuit is arranged on the back side. During specific assembly, a plurality of through holes are firstly drilled on the PCB single-sided board, and the size of the through holes is processed according to predetermined conditions. A drilling device that can be used for drilling holes in a circuit board can be used to cooperate with an automated manipulator to realize automatic loading and unloading of the circuit board during automated production. The conductor plug-in is produced separately in the form of standard parts to reduce the difficulty of production. Then the conductor plug-in is assembled with the PCB single-sided board. The plug-in pin in the conductor plug-in is inserted into the through hole and extends out of the front side of the PCB single-sided board, and then soldered by wave soldering to electrically connect the plug-in pin with the copper foil circuit layer, so that the electrical properties of the copper foil circuit layer are transmitted to the plug-in connector through the plug-in pin, thereby realizing the conversion of electrical properties from the front side to the back side of the PCB single-sided board.

[0045] It should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. However, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A conductor connection structure of a PCB single-sided board, comprising a PCB single-sided board, wherein a copper foil circuit layer is provided on the front side of the PCB single-sided board, and no copper foil circuit is provided on the back side of the PCB single-sided board, characterized in that: The PCB single panel is provided with a through hole, which runs through from the front side to the back side of the PCB single panel. A conductor plug-in is provided in the through hole, and the conductor plug-in includes a plug-in pin and a plug-in connector. The plug-in pin is inserted into the through hole from the back side of the PCB single panel and extends to the front side of the PCB single panel and is connected to the copper foil circuit layer to form electrical conduction. The plug-in connector is located on the back side of the PCB single panel, and is connected to the electronic components on the back side of the PCB single panel.

2. The conductor connection structure of a PCB single-sided board according to claim 1, characterized in that: The plug-in pins of the conductor plug-in are fixed to the copper foil circuit layer by welding.

3. The conductor connection structure of a PCB single-sided board according to claim 1, characterized in that: The plug-in pin and the plug-in connector are an integrally formed structure.

4. The conductor connection structure of a PCB single-sided board according to claim 1, characterized in that: The plug-in connector is formed by bending the upper end of the plug-in pin and extending it horizontally.

5. The conductor connection structure of a PCB single-sided board according to claim 1, characterized in that: The plug-in connector is pressed against the back side of the PCB single-sided board.

6. The conductor connection structure of a PCB single-sided board according to claim 1, characterized in that: The plug-in pin is inserted into the through hole and flush with the copper foil circuit layer, or a part of the plug-in pin extends to the outside of the copper foil circuit layer and is exposed on the front side of the PCB single-sided board.

7. The conductor connection structure of a PCB single-sided board according to claim 1, characterized in that: The plug-in connector is a solid horizontal plate.

8. The conductor connection structure of a PCB single-sided board according to claim 1, characterized in that: The plug-in connector is provided with a screw hole, and the PCB single panel is provided with a screw hole. A metal screw is locked in the screw hole. The screw is inserted into the screw hole of the PCB single panel and extends to the outside of the front of the PCB single panel.

9. The conductor connection structure of a PCB single-sided board according to claim 1, characterized in that: The plug-in connector is in a regular shape.

10. The conductor connection structure of a PCB single-sided board according to claim 1, characterized in that: One pin of an electronic component is connected to a corresponding conductor plug-in.

Images