Substrate connecting device

Abstract

The utility model discloses a substrate connecting device, which relates to the technical field of printed circuit boards and aims at solving the problem that the existing printed circuit board is inconvenient to install, the substrate connecting device comprises a printed circuit board, a long hole is arranged on the printed circuit board, the length of the long hole extends along a board body, and a U-shaped groove is arranged on a substrate board. The U-shaped groove extends in the longitudinal direction of the base material plate, an opening of the U-shaped groove faces the installation side of the base material plate, the installation side is provided with a protruding part arranged in the long hole in a pluggable mode, and the minimum length of the protruding part is larger than the length of the long hole.

Description

Technical Field

[0001] The utility model relates to the technical field of printed circuit boards, and more particularly to a substrate connecting device. Background Art

[0002] In existing power supply products, electronic components are typically soldered onto printed circuit boards (PCBs), with electrical connections between components achieved through internal circuitry within the PCB. When the size of the power supply product and the PCB are limited, a single PCB is insufficient. Furthermore, some PCBs requiring electrical isolation require smaller PCBs without any electronic components, placed vertically in an electrically isolated position to achieve the required insulation.

[0003] In existing power supply products, the two printed circuit boards are usually connected by providing PCB feet on the small printed circuit board and slots at corresponding positions on the large printed circuit board. Solder pads or solder holes are laid on the PCB feet, and solder pads are also provided at corresponding positions near the slots on the large printed circuit board. The two printed circuit boards are then soldered together to achieve the connection.

[0004] The above-mentioned prior art connection method, which connects two printed circuit boards through PCB pins, slots, and soldering, has a problem: during the production process, the order of assembling power supply products is to install the plug-in first, and then solder. In this method, the size of the PCB pin matches the slot, that is, the slot is slightly larger than the size of the PCB pin. Therefore, after the plug-in is installed, the small PCB is easily misaligned in the horizontal position, which causes problems in the subsequent soldering process.

[0005] Therefore, how to solve the problem that the existing printed circuit boards are inconvenient to install is an urgent problem to be solved by those skilled in the art. Utility Model Content

[0006] In view of this, the purpose of the present invention is to provide a substrate connection device, which provides a U-shaped groove on the substrate plate so that the substrate plate has a certain elastic deformation or compression property during assembly, so that the protrusion of the substrate plate can be squeezed into the long hole of the printed circuit board, thereby realizing rapid installation of the substrate plate and the printed circuit board with simple operation.

[0007] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0008] A substrate connecting device, comprising:

[0009] A printed circuit board is provided with a long hole extending along the length of the board;

[0010] The substrate plate is provided with a U-shaped groove, which extends longitudinally along the substrate plate and opens toward the installation side of the substrate plate. The installation side is provided with a pluggable protrusion arranged in the long hole, and the minimum length of the protrusion is greater than the length of the long hole.

[0011] Preferably, the protrusion includes a first protrusion and a second protrusion, the long hole includes a first long hole and a second long hole, the center lines of the first long hole and the second long hole in the length direction are collinear, the first protrusion can be plugged in and arranged in the first long hole, and the second protrusion can be plugged in and arranged in the second long hole.

[0012] Preferably, the substrate plate is rectangular, and the transverse length of the first protrusion along the substrate plate is greater than the transverse length of the second protrusion along the substrate plate.

[0013] Preferably, a first notch is provided at a position of the protruding portion close to the first side of the substrate plate, and the first notch is connected to the first side and the mounting side. A second notch is provided at a side of the protruding portion close to the U-shaped groove, and the second notch is connected to the U-shaped groove and the mounting side. The first notch, the second notch and the end face of the printed circuit board that are clamped are on the same transverse cross-section.

[0014] Preferably, a third notch is provided near the second side of the substrate plate on the second protruding portion, the third notch is connected to the second side and the mounting side, and the third notch, the first notch, the second notch and the end face of the printed circuit board for clamping are on the same transverse cross section.

[0015] Preferably, the first protrusion and the second protrusion are both provided with a plurality of pads, and the long hole is also provided with a plurality of corresponding pads.

[0016] Preferably, a first groove is provided at a position of the protruding portion near the first side, the first groove is a U-shaped long groove and its opening is facing the first side, a second notch is provided at a side of the protruding portion near the U-shaped groove, a second groove is provided at a position of the protruding portion near the second side, the second groove is a U-shaped long groove and its opening is facing the second side, and the first groove, the second notch, and the end face of the second groove and the printed circuit board are on the same transverse cross-section.

[0017] Preferably, the protruding part is provided with a first notch, the protruding part is provided with a third groove on the side close to the U-shaped groove, the third groove is a U-shaped long groove and the opening is facing the U-shaped groove, the protruding part is provided with a third notch, and the first notch, the third groove, and the end face where the third notch is connected to the printed circuit board are on the same transverse cross-section.

[0018] Preferably, the first protruding portion is provided with a first groove and a third groove, the second protruding portion is provided with a second groove, and the first groove, the second groove, the third groove and the end surface of the printed circuit board that are clamped are on the same transverse cross section.

[0019] Preferably, the first protruding portion and the second protruding portion are connected to the mounting side via arc angles.

[0020] The substrate connection device provided by the present invention includes a printed circuit board and a substrate board. Specifically, a U-shaped groove is provided on the substrate board, which extends along the longitudinal direction of the substrate board and opens toward the installation side of the substrate board. By providing the U-shaped groove, the substrate board has a certain elastic deformation or compression property during assembly. A long hole whose length extends along the board body is provided on the printed circuit board, and a pluggable protrusion provided in the long hole is provided on the installation side. The minimum length of the protrusion is greater than the length of the long hole. When installing the substrate board, the protrusion is aligned with the long hole and squeezed into the long hole, thereby realizing effective connection between the substrate board and the printed circuit board. The operation is simple and fast, and the installation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0022] Figure 1 This is an assembly diagram of the substrate connection device provided by the utility model;

[0023] Figure 2 This is a schematic structural diagram of the first printed circuit board provided by the utility model;

[0024] Figure 3 A schematic structural diagram of the first substrate plate provided by the present invention;

[0025] Figure 4 A schematic structural diagram of a second printed circuit board provided by the present invention;

[0026] Figure 5 A schematic structural diagram of the second substrate plate provided by the present invention;

[0027] Figure 6 This is a schematic structural diagram of the third substrate plate provided by the present invention;

[0028] Figure 7 This is a schematic structural diagram of the fourth substrate plate provided by the present invention;

[0029] Figure 8 This is a schematic structural diagram of the fifth substrate plate provided by the present invention;

[0030] Figure 9 This is a schematic structural diagram of the sixth substrate plate provided by the present invention;

[0031] Figure 10This is a structural schematic diagram of the seventh substrate plate provided by the present invention.

[0032] Reference numerals:

[0033] 1-printed circuit board, 11-long hole, 111-first long hole, 112-second long hole;

[0034] 2-substrate plate, 21-U-shaped groove, 22-protrusion, 221-protrusion part one, 222-protrusion part two, 23-first notch, 24-second notch, 25-third notch, 26-soldering pad, 27-first groove, 28-second groove, 29-third groove. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0037] It should be noted that the directional words such as "inside, outside, and above" below are defined based on the drawings in the specification.

[0038] The core of the present invention is to provide a substrate connection device. By providing a U-shaped groove 21 on the substrate plate 2, the substrate plate 2 has a certain elastic deformation or compression property during assembly, so that the protrusion 22 of the substrate plate 2 can be squeezed into the long hole 11 of the printed circuit board 1, thereby realizing rapid installation of the substrate plate 2 and the printed circuit board 1 and simple operation.

[0039] Please refer to Figure 1 and Figure 2 , a substrate connecting device includes a printed circuit board 1 and a base material board 2.

[0040] Specifically, a U-shaped groove 21 is provided on the substrate plate 2. The U-shaped groove 21 extends along the longitudinal direction of the substrate plate 2 and opens toward the installation side of the substrate plate 2. By providing the U-shaped groove 21, the substrate plate 2 has a certain elastic deformation or compression property during assembly. The printed circuit board 1 is provided with a long hole 11 whose length extends along the board body. The installation side is provided with a pluggable protrusion 22 provided in the long hole 11. The minimum length of the protrusion 22 is greater than the length of the long hole 11. When installing the substrate plate 2, the protrusion 22 is aligned with the long hole 11 and the protrusion 22 is squeezed into the long hole 11, thereby realizing an effective connection between the substrate plate 2 and the printed circuit board 1. The operation is simple and fast, and it is easy to install.

[0041] When connecting the printed circuit board 1 and the substrate board 2, the printed circuit board 1 is placed horizontally, and the substrate board 2 is inserted into the long hole 11 of the printed circuit board 1 at a vertical angle relative to the printed circuit board 1, so that the printed circuit board 1 and the substrate board 2 are fixed to each other.

[0042] The substrate board 2 may be a fiberglass board, i.e., it is not copper-clad and does not contain electronic circuits or components. The substrate board 2 is connected to the printed circuit board 1 to achieve electrical isolation. The substrate board 2 may also be a printed circuit board 1, i.e., it is copper-clad on a fiberglass board, and electronic circuits or components are disposed on the substrate board 2.

[0043] By adopting the substrate connection device arranged in the above manner, the printed circuit board 1 and the base material board 2 can be quickly connected by inserting the protrusion 22 into the long hole 11, which is simple, fast and convenient to operate.

[0044] Please refer to Figure 3 and Figure 4 The protruding portion 22 includes a first protruding portion 221 and a second protruding portion 222. The long hole 111 includes a first long hole 111 and a second long hole 112. The center lines of the first long hole 111 and the second long hole 112 in the longitudinal direction are collinear. The first protruding portion 221 is pluggable and arranged in the first long hole 111, and the second protruding portion 222 is pluggable and arranged in the second long hole 112.

[0045] It should be noted that the U-shaped groove 21 divides the protrusion 22 into a first protrusion 221 and a second protrusion 222. Due to the action of the U-shaped groove 21, the first protrusion 221 and the second protrusion 222 are squeezed and elastically deformed to engage with the first and second elongated holes 111 and 112, thereby securing the printed circuit board 1 and the substrate board 2 to each other. Specifically, the first protrusion 221 is inserted obliquely into the first elongated hole 111, while the second protrusion 222 is rotated and engaged with the second elongated hole 112.

[0046] The long hole 11 is elliptical, but is not particularly limited thereto, and can be a rectangular or other long hole as long as the protrusion 22 can be inserted therein. There is no limit to the number of long holes 11, and it can be one or two, as long as the above-mentioned technical effect can be achieved.

[0047] In the above case, the substrate plate 2 is rectangular, and the transverse length of the first protruding portion 221 along the substrate plate 2 is greater than the transverse length of the second protruding portion 222 along the substrate plate 2 .

[0048] It will be appreciated that the printed circuit board 1 and the substrate board 2 are rectangular in shape, but this is not limiting. The longitudinal and transverse dimensions and thicknesses of the printed circuit board 1 and the substrate board 2 may be the same or different. The U-shaped groove 21 is positioned on the substrate board 2 so that the transverse length of the second protrusion 222 is less than that of the first protrusion 221, allowing the second protrusion 222 to serve as a pin for the substrate board 2.

[0049] Among them, the minimum length of the protrusion 22 is greater than the length of the long hole 11, and the length of the protrusion 22 refers to the distance between the outer sides of the two ends when the protrusion 22 is not squeezed; further, the minimum length of the protrusion 22 is the minimum distance between the outer sides of the two ends when the protrusion 22 is not squeezed.

[0050] In the present application, among the sides of the substrate plate 2, the side passing through the long hole 11 is the installation side, and the other side parallel to the installation side is the opposite side. Excluding the protrusion 22, among the other two sides, the side connected to the protrusion part 221 is the first side, and the side connected to the protrusion part 222 is the second side.

[0051] Please refer to Figure 5 A first notch 23 is provided on the protruding portion 221 near the first side of the substrate plate 2, and the first notch 23 is connected to the first side and the installation side. A second notch 24 is provided on the side of the protruding portion 221 near the U-shaped groove 21, and the second notch 24 is connected to the U-shaped groove 21 and the installation side. The first notch 23 and the second notch 24 are on the same transverse cross-section as the end surface of the printed circuit board 1 that is clamped.

[0052] It should be noted that the outer side of the protruding portion 221 is recessed compared to the first side, that is, the first notch 23, that is, the outer side of the protruding portion 221 is not flush with the first side, but is recessed at the edge of the first side. The upper edge of the protruding portion 221 is formed at the recessed portion and the place where the protruding portion 221 meets the first side. The inner side of the protruding portion 221 is recessed compared to the U-shaped groove 21, that is, the second notch 24, that is, the inner side of the protruding portion 221 is not flush with the U-shaped groove 21, but is recessed at the edge of the U-shaped groove 21. The upper edge of the protruding portion 221 is formed at the recessed portion and the place where the protruding portion 221 meets the U-shaped groove 21. After the substrate board 2 and the printed circuit board 1 are assembled, the upper edge is in close contact with the printed circuit board 1.

[0053] In the above embodiment, the second protruding portion 222 is provided with a third notch 25 near the second side of the substrate plate 2. The third notch 25 is connected to the second side and the mounting side. The third notch 25, the first notch 23, the second notch 24 and the end surface of the printed circuit board 1 that are engaged are on the same transverse cross-section.

[0054] It can be understood that the outer side of the second protruding portion 222 is recessed relative to the second side, that is, the third notch 25. The outer side of the second protruding portion 222 is not flush with the second side, but is recessed at the edge of the second side. The upper edge of the second protruding portion 222 is formed at the recessed portion and where the second protruding portion 222 meets the second side. After the substrate board 2 and the printed circuit board 1 are assembled, the upper edge is tightly attached to the printed circuit board 1.

[0055] In this embodiment, the upper edges of the first notch 23 , the second notch 24 , and the third notch 25 are on a horizontal line. After the substrate plate 2 and the printed circuit board 1 are assembled, the upper edges of the first notch 23 , the second notch 24 , and the third notch 25 are in close contact with the printed circuit board 1 .

[0056] Please refer to Figure 6 The first protruding portion 221 and the second protruding portion 222 are both provided with a plurality of pads 26 , and the long hole 11 is also provided with a plurality of corresponding pads 26 .

[0057] It should be noted that the protruding portion 221 of the substrate plate 2 is provided with a plurality of solder pads 26. When the protruding portion 222 serves as a pin of the substrate plate 2, solder feet are provided around the pin, and corresponding solder pads 26 are provided around the long hole 11 on the printed circuit board 1. The substrate plate 2 and the printed circuit board 1 are connected by welding.

[0058] Please refer to Figure 7 A first groove 27 is provided at a position of the protruding portion 221 near the first side. The first groove 27 is a U-shaped long groove and its opening faces the first side. A second notch 24 is provided at a side of the protruding portion 221 near the U-shaped groove 21. A second groove 28 is provided at a position of the protruding portion 222 near the second side. The second groove 28 is a U-shaped long groove and its opening faces the second side. The first groove 27, the second notch 24, and the second groove 28 are on the same transverse cross-section as the end surface of the printed circuit board 1 that is clamped thereto.

[0059] It is understood that the outer side of the first protruding portion 221 is not flush with the first side, but instead forms a notch, or first groove 27. This first groove 27 allows the substrate plate 2 to be clamped onto the printed circuit board 1. After the substrate plate 2 and the printed circuit board 1 are assembled, the upper edge of the first groove 27 abuts the printed circuit board 1. The outer side of the second protruding portion 222 is not flush with the second side, but instead forms a notch, or second groove 28. This second groove 28 allows the substrate plate 2 to be clamped onto the printed circuit board 1. After the substrate plate 2 and the printed circuit board 1 are assembled, the upper edge of the second groove 28 abuts the printed circuit board 1.

[0060] In this embodiment, the upper edges of the first groove 27 , the second notch 24 , and the second groove 28 are on a horizontal line. After the substrate plate 2 and the printed circuit board 1 are assembled, the upper edges of the first groove 27 , the second notch 24 , and the second groove 28 are in close contact with the printed circuit board 1 .

[0061] Please refer to Figure 8 The protruding portion 221 is provided with a first notch 23, and a third groove 29 is provided on the side of the protruding portion 221 close to the U-shaped groove 21. The third groove 29 is a U-shaped long groove and its opening faces the U-shaped groove 21. The protruding portion 222 is provided with a third notch 25. The first notch 23, the third groove 29, and the third notch 25 are on the same transverse cross-section as the end face of the printed circuit board 1 that is clamped.

[0062] It should be noted that the inner side of the protruding portion 221 is not flush with the side of the U-shaped groove 21, but forms a notch, namely the third groove 29. The substrate plate 2 is clamped onto the printed circuit board 1 through the third groove 29. After the substrate plate 2 and the printed circuit board 1 are assembled, the upper edge of the third groove 29 is in close contact with the printed circuit board 1.

[0063] In this embodiment, the upper edges of the first notch 23 , the third groove 29 , and the third notch 25 are on a horizontal line. After the substrate plate 2 and the printed circuit board 1 are assembled, the upper edges of the first notch 23 , the third groove 29 , and the third notch 25 are closely attached to the printed circuit board 1 .

[0064] Please refer to Figure 9 The protruding portion 221 is provided with a first groove 27 and a third groove 29, and the protruding portion 222 is provided with a second groove 28. The first groove 27, the second groove 28, the third groove 29 and the end surface of the printed circuit board 1 that are engaged are on the same transverse cross section.

[0065] It can be understood that in this embodiment, the upper edges of the first groove 27, the second groove 28, and the third groove 29 are on a horizontal line. After the substrate plate 2 and the printed circuit board 1 are assembled, the upper edges of the first groove 27, the second groove 28, and the third groove 29 are in close contact with the printed circuit board 1.

[0066] Please refer to Figure 10 The first protruding portion 221 and the second protruding portion 222 are connected to the mounting side via arc angles.

[0067] It should be noted that the first protruding portion 221 and the second protruding portion 222 are connected to the mounting side through arc angles so that the first protruding portion 221 and the second protruding portion 222 can be smoothly inserted into the first long hole 111 and the second long hole 112 .

[0068] In summary, the substrate connection device provided by the present invention provides a U-shaped groove 21 on the substrate plate 2, so that the substrate plate 2 has a certain elastic deformation or compression property during assembly, so that the protrusion 22 of the substrate plate 2 can be squeezed into the long hole 11 of the printed circuit board 1, and through the design of the minimum length of the protrusion 22 and the design that the outer side of the protrusion 221 is recessed on the first side, the substrate plate 2 can be firmly clamped on the printed circuit board 1 after assembly, overcoming the installation problems existing in the prior art and reducing labor costs.

[0069] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0070] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0071] The above describes in detail the substrate connection device provided by the present invention. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above examples is only intended to help understand the method and core concept of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from the principles of the present invention, and such improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A substrate connection device, characterized in that: include: A printed circuit board (1), wherein the printed circuit board (1) is provided with a long hole (11) whose length extends along the board body; A substrate plate (2), wherein a U-shaped groove (21) is provided on the substrate plate (2), wherein the U-shaped groove (21) extends in the longitudinal direction of the substrate plate (2) and opens toward the installation side of the substrate plate (2), wherein the installation side is provided with a pluggable protrusion (22) provided in the long hole (11), and the minimum length of the protrusion (22) is greater than the length of the long hole (11).

2. The substrate connection device according to claim 1, wherein: The protruding portion (22) includes a first protruding portion (221) and a second protruding portion (222); the long hole (11) includes a first long hole (111) and a second long hole (112); the center lines of the first long hole (111) and the second long hole (112) in the longitudinal direction are collinear; the first protruding portion (221) is pluggable and arranged in the first long hole (111); the second protruding portion (222) is pluggable and arranged in the second long hole (112).

3. The substrate connection device according to claim 2, wherein: The substrate plate (2) is rectangular, and the transverse length of the first protruding portion (221) along the substrate plate (2) is greater than the transverse length of the second protruding portion (222) along the substrate plate (2).

4. The substrate connection device according to claim 3, wherein: A first notch (23) is provided at a position of the protruding portion (221) close to the first side of the substrate plate (2), and the first notch (23) is communicated with the first side and the mounting side. A second notch (24) is provided at a side of the protruding portion (221) close to the U-shaped groove (21), and the second notch (24) is communicated with the U-shaped groove (21) and the mounting side. The first notch (23), the second notch (24) and the end face of the printed circuit board (1) to be clamped are on the same transverse cross section.

5. The substrate connection device according to claim 4, wherein: A third notch (25) is provided at a position of the second protruding portion (222) close to the second side of the substrate plate (2); the third notch (25) is in communication with the second side and the mounting side; and the end faces of the third notch (25), the first notch (23), and the second notch (24) that are engaged with the printed circuit board (1) are on the same transverse cross section.

6. The substrate connection device according to claim 5, wherein: The protruding portion (221) and the protruding portion (222) are both provided with a plurality of soldering pads (26), and the long hole (11) is also provided with a plurality of corresponding soldering pads (26).

7. The substrate connection device according to claim 5, wherein: The protruding portion (221) is provided with a first groove (27) at a position close to the first side, the first groove (27) is a U-shaped long groove and its opening faces the first side, the protruding portion (221) is provided with a second notch (24) at a side close to the U-shaped groove (21), the protruding portion (222) is provided with a second groove (28) at a position close to the second side, the second groove (28) is a U-shaped long groove and its opening faces the second side, and the first groove (27), the second notch (24), and the second groove (28) are on the same transverse cross section as the end face of the printed circuit board (1) to be clamped.

8. The substrate connection device according to claim 7, wherein: The protruding portion (221) is provided with the first notch (23), and the protruding portion (221) is provided with a third groove (29) on a side close to the U-shaped groove (21), the third groove (29) being a long U-shaped groove with an opening facing the U-shaped groove (21), and the protruding portion (222) is provided with the third notch (25), and the first notch (23), the third groove (29), and the end face of the third notch (25) and the printed circuit board (1) to be clamped are on the same transverse cross section.

9. The substrate connection device according to claim 8, wherein: The first protruding portion (221) is provided with the first groove (27) and the third groove (29), and the second protruding portion (222) is provided with the second groove (28). The first groove (27), the second groove (28), and the third groove (29) are located on the same transverse cross section as the end surface of the printed circuit board (1) for engagement.

10. The substrate connection device according to claim 9, wherein: The first protruding portion (221) and the second protruding portion (222) are both connected to the mounting side via arc angles.

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