Double-sided tin-sprayed circuit board

Abstract

The utility model relates to the technical field of circuit boards, in particular to a double-sided tin-sprayed circuit board, which comprises a first circuit board, a second circuit board, a first connecting plate and a second connecting plate, four corners of the top of the first circuit board are provided with fixing grooves, four corners of the bottom of the second circuit board are provided with fixing rods, and the fixing rods are connected with the first connecting plate and the second connecting plate. First inserting grooves are formed in the front side and the rear side of the first circuit board, second inserting grooves are formed in the front side and the rear side of the second circuit board, the two first connecting plates are inserted into the two first inserting grooves, the two second connecting plates are inserted into the two second inserting grooves, and springs are symmetrically installed on the opposite sides of the two first connecting plates and the second connecting plates below. And fixing blocks are embedded in the front and rear sides of the top of the second circuit board. According to the utility model, the circuit board I and the circuit board II can be fixedly connected by a worker conveniently, and the installation difficulty is reduced.

Description

Technical Field

[0001] This utility model relates to the field of circuit board technology, specifically to a double-sided tin-plated circuit board. Background Technology

[0002] Double-sided tin-plated circuit boards are carriers of electronic components. They have a metal substrate covered with tin (also known as hot-air tin) on both sides. Components on this type of circuit board can be connected to both sides, thereby increasing the flexibility and complexity of circuit design. Double-sided tin-plated circuit boards are commonly used to manufacture electronic devices that require high-density connections, such as computers, communication equipment, and consumer electronics.

[0003] Currently, the two metal substrates of double-sided tin-plated circuit boards are usually fixedly connected by a method called electroplating hole riveting. This method involves installing conductive riveting components between the two substrates and then welding or connecting them through electroplating holes. During the installation process, not only drilling but also welding is required, which makes the fixed installation quite difficult. Utility Model Content

[0004] The purpose of this utility model is to provide a double-sided tin-plated circuit board, which has the advantages of making it easy for workers to fix and connect circuit board one and circuit board two, reducing the difficulty of installation, and solving the problem of the difficulty of fixing the two metal substrates of the double-sided tin-plated circuit board.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a double-sided tin-plated circuit board, comprising a circuit board one, a circuit board two, a connecting plate one, and a connecting plate two. The circuit board one has fixing slots at its four top corners, and the circuit board two has fixing rods at its four bottom corners. The circuit board one has slot one on both its front and rear sides, and the circuit board two has slot two on both its front and rear sides. Two connecting plates one are inserted into two slot one, and two connecting plates two are inserted into two slot two. Springs are symmetrically installed on opposite sides of the two connecting plates one and the lower connecting plate two. Fixing blocks are embedded in the front and rear sides of the top of the circuit board two.

[0006] Preferably, the four fixing rods are inserted into the four fixing slots.

[0007] Preferably, a first tin layer is installed at the bottom of the first circuit board, and a second tin layer is installed at the top of the second circuit board.

[0008] Preferably, both circuit board one and circuit board two have slots on their front sides.

[0009] Preferably, mounting plates are symmetrically mounted on both sides of the circuit board.

[0010] Preferably, the tin layer has two symmetrically formed circular holes, through which the tops of the two fixing blocks pass, and heat sinks are installed on the tops of both fixing blocks.

[0011] Preferably, insulating rubber pads are installed at all four corners of the bottom of the circuit board.

[0012] Preferably, each of the two connecting plates has a movable rod installed on its top, and each of the two connecting plates has a movable hole on its top. The tops of the two movable rods pass through the two movable holes, and each of the two movable rods has a baffle installed on its top.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention utilizes a first connecting plate, a second connecting plate, and springs. The two first connecting plates and the two second connecting plates are elastically connected by springs. After inserting the four fixing rods at the bottom of the circuit board 2 into the four fixing slots at the top of the circuit board 1, the two first connecting plates and the two second connecting plates are pulled in opposite directions. This causes the two first connecting plates and the two second connecting plates to be inserted into the slots 1 and 2 on the front and back sides of the circuit board 1 and the circuit board 2, respectively. The contraction force generated by the two sets of springs being stretched pulls the adjacent first connecting plates and the two second connecting plates. The two first connecting plates and the two second connecting plates apply pressure in opposite directions to the circuit board 1 and the circuit board 2, thus fixing the circuit board 1 and the circuit board 2 in place. This design facilitates the installation of the circuit board 1 and the circuit board 2 by the workers, reducing the difficulty of installation. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention from a first angle;

[0016] Figure 2 This is a two-dimensional structural diagram of the present invention from a second angle;

[0017] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0018] Figure 4 This is a schematic diagram of the connecting plate one and connecting plate two of this utility model.

[0019] In the diagram: 1. Circuit board one; 2. Circuit board two; 3. Connecting plate one; 4. Connecting plate two; 5. Spring; 6. Slot; 7. Baffle; 8. Heat sink; 9. Fixing block; 10. Tin layer two; 11. Mounting plate; 12. Insulating rubber pad; 13. Tin layer one; 14. Slot one; 15. Slot two; 16. Movable hole; 17. Fixing rod; 18. Round hole; 19. Fixing groove; 20. Movable rod. Detailed Implementation

[0020] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0022] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0024] Example

[0025] like Figures 1-4As shown, this utility model proposes a double-sided tin-plated circuit board, including a circuit board 1, a circuit board 2, a connecting plate 3, and a connecting plate 4. Each of the four corners of the top of the circuit board 1 has a fixing groove 19, and each of the four corners of the bottom of the circuit board 2 has a fixing rod 17. The four fixing rods 17 are inserted into the four fixing grooves 19. The circuit board 1 and the circuit board 2 are movably connected through the fixing rods 17 and the fixing grooves 19. A tin layer 13 is installed at the bottom of the circuit board 1, and a tin layer 20 is installed at the top of the circuit board 2. The tin layer 13 and the tin layer 20 can cover the circuit board 1 and the circuit board 2. The metal points and paths on circuit board 1 and circuit board 2 are designed to prevent short circuits caused by incorrect soldering. Both circuit board 1 and circuit board 2 have slots 6 on their front sides. Mounting plates 11 are symmetrically installed on both sides of circuit board 1. During installation, circuit board 1 and circuit board 2 are secured to the pre-reserved structure of the load-bearing structure using the slots 6. Circuit board 1 is then fixed to the load-bearing structure using bolts and other tools via the mounting plates 11. Circuit board 1 has slots 14 on both its front and rear sides, and circuit board 2 has slots 15 on both its front and rear sides. Two connecting plates 3 are inserted into the two slots 14. The second plate 4 is inserted into the two slots 215. Springs 5 ​​are symmetrically installed on opposite sides of the two connecting plates 11 and the lower connecting plate 24. Movable rods 20 are installed on the top of each of the two connecting plates 11 and 215. Movable holes 16 are opened on the top of each of the two connecting plates 24. The tops of the two movable rods 20 pass through the two movable holes 16. Baffles 7 are installed on the tops of the two movable rods 20. The two movable rods 20 limit the movement of the two connecting plates 11 and 215, restricting their direction and range of movement. The two baffles 7 prevent the two movable rods 20 from exiting through the two movable holes 11 and 215. The circuit board 2 has two fixing blocks 9 embedded on its top front and back sides. The tin layer 2 has two symmetrical round holes 18. The tops of the two fixing blocks 9 pass through the two round holes 18. The tops of the two fixing blocks 9 are equipped with heat sinks 8. The heat from the circuit board 1 and the circuit board 2 is transferred to the two fixing blocks 9. The heat sinks 8 on the tops of the two fixing blocks 9 dissipate the heat outward. The four corners of the bottom of the circuit board 1 are equipped with insulating rubber pads 12. The insulating rubber pads 12 provide support for the circuit board 1 and prevent the tin layer 2 10 at the bottom of the circuit board 1 from contacting the supporting structure and causing wear.

[0026] Working principle: During installation, insert the four fixing rods 17 at the bottom of circuit board 2 into the four fixing slots 19 at the top of circuit board 1. Then, pull the two connecting plates 1 3 and 2 4 in opposite directions to adjust the relative distance between them. Insert the two connecting plates 1 3 and 2 4 into the slots 1 14 and 2 15 on the front and rear sides of circuit board 1 and circuit board 2 respectively. The contraction force generated by the two sets of springs 5 ​​after being stretched pulls the adjacent connecting plates 1 3 and 2 4. The two connecting plates 1 3 and 2 4 apply pressure to circuit board 1 and circuit board 2 in opposite directions, fixing circuit board 1 and circuit board 2 2 together. The circuit board 1 and circuit board 2 2 are then secured to the pre-reserved structure of the load-bearing structure through the slots 6. Circuit board 1 is then fixed to the load-bearing structure using bolts and other tools through the mounting plate 11. The heat from circuit board 1 and circuit board 2 2 is transferred to the two fixing blocks 9, and the heat sinks 8 on the top of the two fixing blocks 9 dissipate the heat outward.

[0027] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A double-sided tin-spraying circuit board, comprising a first circuit board (1), a second circuit board (2), a first connecting plate (3) and a second connecting plate (4), characterized in that: The circuit board one (1) top four corners are provided with fixed slots (19), the circuit board two (2) bottom four corners are provided with fixed rods (17), the circuit board one (1) front and back sides are provided with insertion slots one (14), the circuit board two (2) front and back sides are provided with insertion slots two (15), two the connecting plates one (3) are inserted into two insertion slots one (14), two the connecting plates two (4) are inserted into two insertion slots two (15), two the connecting plates one (3) and the connecting plates two (4) below opposite sides are symmetrically provided with springs (5), the circuit board two (2) top front and back sides are embeddedly provided with fixed blocks (9).

2. The double-sided solder jet printed circuit board of claim 1, wherein: Four The fixed rods (17) are inserted into four fixed slots (19).

3. The double-sided solder jet printed circuit board of claim 1, wherein: The circuit board one (1) bottom is provided with a tin layer one (13), and the circuit board two (2) top is provided with a tin layer two (10).

4. The double-sided solder jet printed circuit board of claim 1, wherein: The circuit board one (1) and the circuit board two (2) front sides are provided with clamping grooves (6).

5. The double-sided solder jet printed circuit board of claim 1, wherein: The circuit board one (1) both sides are symmetrically provided with mounting plates (11).

6. The double-sided solder jet printed circuit board of claim 3, wherein: The tin layer two (10) is symmetrically provided with two round holes (18), and the two fixed blocks (9) top pass through the two round holes (18), and the two fixed blocks (9) top are provided with radiating fins (8).

7. The double-sided solder jet printed circuit board of claim 1, wherein: The circuit board one (1) bottom four corners are provided with insulating rubber pads (12).

8. The double-sided solder jet printed circuit board of claim 1, wherein: Two The connecting plates one (3) top are provided with movable rods (20), two the connecting plates two (4) top are provided with movable holes (16), two movable rods (20) top pass through two movable holes (16), two movable rods (20) top are provided with baffles (7).

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