Printed circuit board with edge covered by welding hole
By installing edge-sealing parts and inner tubes inside the welding holes, the problems of signal radiation and mechanical stress were solved, thereby improving signal stability and mechanical strength.
Patent Information
- Application Number
- CN202520254501.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-18
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-02-18
AI Technical Summary
Traditional solder holes cannot effectively prevent high-frequency signal radiation and provide mechanical support, resulting in decreased signal quality and circuit board damage.
An edge-sealing component, including a circular ring plate and a circular tube, is installed inside the welding hole to form a shielding layer and enhance mechanical strength. The wire is initially positioned by the inner tube, and the welding groove is used to improve welding stability.
It improves signal integrity and stability, enhances the mechanical strength of the circuit board, and prevents solder hole cracking and wire detachment.
Smart Images
Figure CN223786253U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to printed wiring board technical field especially relates to a printed wiring board of welding hole edge covering. BACKGROUND
[0002] Printed wiring board is also called printed circuit board or PCB, it is important electronic component, is the support body of electronic components, is the carrier of electrical connection of electronic components, because it is made by using electronic printing, is called "printed" circuit board, its main function is to make various electronic components through circuit connection, plays the role of conduction and transmission, is the key electronic interconnection of electronic product.
[0003] In order to facilitate the stable connection between the circuit board and the wire, the circuit board will have multiple welding holes in the processing process. Because the high-frequency signal is transmitted on the circuit board, if the signal wire is close to the edge of the PCB, it may be affected by the edge effect, resulting in signal quality decline, at the same time for some special fields, such as aerospace or military equipment, the circuit board needs to bear certain mechanical stress, the traditional welding hole cannot provide effective support, and the welding hole cracking may occur after being subjected to mechanical stress, resulting in wire falling off. Therefore, a printed wiring board with welding hole edge covering is needed to solve the above problems. UTILITY MODEL CONTENTS
[0004] The utility model discloses a printed wiring board with welding hole edge covering to solve the above problems. Its advantages are that the welding hole inside the edge covering element can form a shielding layer, prevent microwave signals from radiating out from the circuit board edge, improve signal integrity and stability, and improve the mechanical strength of the welding hole and the entire circuit board, avoiding damage to the circuit board under mechanical stress.
[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0006] A printed wiring board with welding hole edge covering includes a board body, a welding hole is opened on one side of the board body, an edge covering element for protecting the board body is arranged in the welding hole, and a through hole is opened in the middle of the edge covering element.
[0007] Through the above technical scheme: by setting the edge covering element inside the welding hole, a shielding layer can be formed, microwave signals are prevented from radiating out from the edge of the circuit board, thereby improving the integrity and stability of signals, and the mechanical strength of the welding hole and the entire circuit board is improved, and the circuit board is prevented from being easily damaged under mechanical stress.
[0008] The utility model further sets up, the edge covering element includes circular ring board department and round pipe department, the round pipe department is located inside the welding hole.
[0009] Through the above technical scheme: the stability of the connection between the edge covering element and the welding hole is ensured.
[0010] The utility model further sets up, the number of circular ring board department is two groups, two groups circular ring board department is located at the both ends of round pipe department.
[0011] Through the above technical scheme: the inner diameter of the circular ring board department is greater than the inner diameter of the entire welding hole, thereby the welding area between the wire and the circular ring board department can be enlarged, and the welding work between the wire and the welding hole is facilitated.
[0012] The utility model further sets up, the outer wall of one end fixed of circular ring board department with round pipe department is contacted with the one side outer wall of board body.
[0013] Through the above technical scheme: the connection between the edge covering element and the welding hole can be more closely firm.
[0014] The utility model further sets up, the inner wall of circumference of edge covering element is provided with inner collecting pipe, the inner diameter of inner collecting pipe gradually reduces from the direction of the back of board body to the front of board body.
[0015] Through the above technical scheme: the wire can be preliminarily positioned in the process of passing through the inner collecting pipe, and the subsequent soldering work of the wire is facilitated.
[0016] The utility model further sets up, the outer wall of one side of circular ring board department located at the front of board body is provided with first welding groove, the cross section of first welding groove is circular, and the center of first welding groove is same with the center of edge covering element.
[0017] Through the above technical scheme: it can be guaranteed that the solder can enter the first welding groove and be connected with the circular ring board department quickly during soldering, and the stability of the welding between the wire and the welding hole is improved.
[0018] The utility model further sets up, the outer wall of one side of circular ring board department provided with first welding groove is also provided with second welding groove, and second welding groove is communicated with first welding groove.
[0019] Through the above technical scheme, the solder can enter the second welding groove and be quickly solidified and connected with the circular plate part in the soldering process, and the stability of the welding between the wire and the welding hole is further improved.
[0020] The utility model further sets up, the cross section of second welding groove is rectangular, the number of second welding groove is four groups, four groups second welding groove is on the one side of circular plate part is equidistant circular distribution.
[0021] Through the above technical scheme, the second welding groove is distributed horizontally and vertically on the circular plate part, so that the wire and the welding hole can be stably connected in multiple directions.
[0022] The utility model has the advantages of:
[0023] 1. In the utility model, the edge covering element arranged in the welding hole can form a shielding layer, prevent microwave signals from radiating out from the edge of the circuit board, thereby improving the integrity and stability of the signals, and can also improve the mechanical strength of the welding hole and the entire circuit board, avoiding damage of the circuit board under mechanical stress.
[0024] 2. In the utility model, the inner collecting pipe with gradually changing inner diameter arranged in the edge covering element can preliminarily position the wire during the wire passing through the inner collecting pipe, facilitating the subsequent soldering work of the wire.
[0025] 3. In the utility model, the first welding groove and the second welding groove are arranged on one side of the circular plate part, so that the solder can enter the first welding groove and the second welding groove and be quickly solidified and connected with the circular plate part in the soldering process, thereby further improving the stability of the welding between the wire and the welding hole. BRIEF DESCRIPTION OF DRAWINGS
[0026] Figure 1 The utility model provides a kind of overall structure schematic view of the printed circuit board of welding hole edge covering;
[0027] Figure 2 The utility model provides a kind of welding hole half sectional view structure schematic view of the printed circuit board of welding hole edge covering;
[0028] Figure 3 The utility model provides a kind of structure schematic view of embodiment 2 of the printed circuit board of welding hole edge covering;
[0029] Figure 4 The utility model provides a kind of printed circuit board of welding hole edge covering Figure 3 The utility model provides a kind of structure schematic view of A of embodiment 2 of the printed circuit board of welding hole edge covering.
[0030] In the figure: 1, plate body; 2, edge covering element; 2001, circular ring plate part; 2002, circular tube part; 2004, inner collecting tube; 2005, first welding groove; 2006, second welding groove; 3, welding hole. DETAILED DESCRIPTION
[0031] The technical solutions of the patent will be further described in detail below in combination with specific embodiments.
[0032] The embodiments of the patent will be described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the patent, and cannot be understood as a limitation on the patent.
[0033] In the description of the patent, it needs to be understood that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the patent and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the patent.
[0034] In the description of the patent, it needs to be understood that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "setting" should be understood broadly, for example, can be fixedly connected, set, or can be detachably connected, set, or integrally connected, set. For those skilled in the art, the specific meanings of the above terms in the patent can be understood according to the specific circumstances.
[0035] Embodiment 1
[0036] Reference Figures 1-2 A printed wiring board with edge covering of welding hole includes a plate body 1, a welding hole 3 is formed on one side of the plate body 1, and an edge covering element 2 for protecting the plate body 1 is arranged in the welding hole 3. A through hole is formed in the middle of the edge covering element 2. By arranging the edge covering element 2 in the welding hole 3, a shielding layer can be formed, which prevents microwave signals from being radiated out from the edge of the wiring board, thereby improving the integrity and stability of the signals, and at the same time, the mechanical strength of the welding hole 3 and the entire wiring board is improved, avoiding the damage of the wiring board under mechanical stress.
[0037] In order to ensure the stability of the connection between the edge covering element 2 and the welding hole 3, reference is made to Figures 1-2, the edge covering element 2 comprises a circular ring plate part 2001 and a circular tube part 2002, the circular tube part 2002 is located inside the welding hole 3, the circular ring plate part 2001 and the circular tube part 2002 can better cooperate with the welding hole 3, and the stability of the connection between the edge covering element 2 and the welding hole 3 is ensured.
[0038] In order to facilitate the welding between the wire and the welding hole 3, referring to Figures 1-2 , the number of the circular ring plate part 2001 is two groups, and the two groups of circular ring plate parts 2001 are located at two ends of the circular tube part 2002. The inner diameter of the circular ring plate part 2001 is larger than the inner diameter of the entire welding hole 3, so that the welding area between the wire and the circular ring plate part 2001 can be enlarged, and the welding work between the wire and the welding hole 3 is facilitated.
[0039] In order to make the connection between the edge covering element 2 and the welding hole 3 more closely and firmly, referring to Figures 1-2 , the outer wall of one end of the circular ring plate part 2001 and the circular tube part 2002 is in contact with the outer wall of one side of the plate body 1.
[0040] In order to be able to preliminarily position the welding wire, referring to Figure 2 , the inner wall of the circumference of the edge covering element 2 is provided with an inner collecting pipe 2004, and the inner diameter of the inner collecting pipe 2004 gradually decreases from the back of the plate body 1 to the front of the plate body 1. Since the inner collecting pipe 2004 with the gradually changing inner diameter is arranged inside the edge covering element 2, the wire can be preliminarily positioned during the process of passing through the inner collecting pipe 2004, and the subsequent soldering work of the wire is facilitated.
[0041] Embodiment 2
[0042] Referring to Figures 3-4 , compared with embodiment 1, the printed circuit board with the welding hole edge covering further comprises that the outer wall of one side of the circular ring plate part 2001 located at the front of the plate body 1 is provided with a first welding groove 2005, the cross section of the first welding groove 2005 is circular, the center of the first welding groove 2005 is the same as the center of the edge covering element 2, which can ensure that the solder can enter the first welding groove 2005 during the soldering process and be quickly solidified and connected with the circular ring plate part 2001, and the stability of the welding between the wire and the welding hole 3 is improved.
[0043] In order to further improve the welding and fixing effect between the wire and the circular ring plate part 2001, referring to Figures 3-4 , the outer wall of one side of the circular ring plate part 2001 provided with the first welding groove 2005 is further provided with a second welding groove 2006, the second welding groove 2006 is in communication with the first welding groove 2005, which can ensure that the solder can enter the second welding groove 2006 during the soldering process and be quickly solidified and connected with the circular ring plate part 2001, and the stability of the welding between the wire and the welding hole 3 is further improved.
[0044] Referring toFigures 3-4 The cross section of the second welding groove 2006 is rectangular, the number of the second welding groove 2006 is four groups, and the four groups of the second welding groove 2006 are distributed equidistantly and circularly on one side of the circular plate part 2001. Since the number of the second welding groove 2006 is four groups and the four groups of the second welding groove 2006 are distributed equidistantly and circularly on one side of the circular plate part 2001, the second welding groove 2006 can be distributed horizontally and vertically on the circular plate part 2001, so that the wire and the welding hole 3 can be stably connected in multiple directions.
[0045] Working principle: The circuit board can not only form a shielding layer by setting the edge covering part 2 inside the welding hole 3 to prevent microwave signals from being radiated from the edge of the circuit board, thereby improving the integrity and stability of the signal, but also can improve the mechanical strength of the welding hole 3 and the entire circuit board, avoiding the damage of the circuit board under mechanical stress. At the same time, when the circuit board and the wire are soldered, since the inner collecting pipe 2004 with gradually changing inner diameter is arranged inside the edge covering part 2, the wire can be preliminarily positioned during the wire passing through the inner collecting pipe 2004, which facilitates the subsequent soldering work of the wire. At the same time, the first welding groove 2005 and the second welding groove 2006 are respectively arranged on one side of the circular plate part 2001, which can ensure that the solder can enter the first welding groove 2005 and the second welding groove 2006 and be quickly solidified and connected with the circular plate part 2001 during the soldering process, further improving the stability of the welding between the wire and the welding hole 3.
[0046] The above is only the preferred 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 make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.
Claims
1. A printed circuit board with solder hole edging, comprising a board body (1), characterized in that, A welding hole (3) is provided on one side of the plate (1), and an edge banding (2) for protecting the plate (1) is provided in the welding hole (3). A through hole is provided in the middle of the edge banding (2).
2. The printed circuit board with solder hole edge protection according to claim 1, characterized in that, The edge-sealing part (2) includes a circular ring plate part (2001) and a circular tube part (2002), the circular tube part (2002) being located inside the welding hole (3).
3. A printed circuit board with solder hole edge protection according to claim 2, characterized in that, There are two sets of the annular plate portions (2001), and the two sets of the annular plate portions (2001) are located at both ends of the circular tube portion (2002).
4. A printed circuit board with solder hole edge protection according to claim 3, characterized in that, The outer wall of the annular plate portion (2001) and the circular tube portion (2002) fixed at one end is in contact with the outer wall of one side of the plate body (1).
5. A printed circuit board with solder hole edge protection according to claim 4, characterized in that, The inner circumferential wall of the edge-sealing part (2) is provided with an inner tube (2004), and the inner diameter of the inner tube (2004) gradually decreases from the back of the plate (1) to the front of the plate (1).
6. A printed circuit board with solder hole edge protection according to claim 5, characterized in that, A first welding groove (2005) is provided on the outer wall of the annular plate portion (2001) on the front side of the plate body (1). The cross-section of the first welding groove (2005) is circular, and the center of the first welding groove (2005) is the same as the center of the edge banding (2).
7. A printed circuit board with solder hole edge protection according to claim 6, characterized in that, A second welding groove (2006) is also provided on the outer wall of one side of the annular plate portion (2001) which has the first welding groove (2005), and the second welding groove (2006) is connected to the first welding groove (2005).
8. A printed circuit board with solder hole edge protection according to claim 7, characterized in that, The second welding groove (2006) has a rectangular cross-section, and there are four sets of the second welding groove (2006). The four sets of the second welding groove (2006) are distributed in a circular pattern at equal intervals on one side of the annular plate portion (2001).