Circuit board

Abstract

The utility model discloses a kind of circuit boards, it is related to the field of printed circuit, and its technical solution main points are: including substrate, two welding holes are equipped on substrate, capacitor is welded on substrate between two welding holes, fixed strip and movable strip are equipped on substrate between two welding holes, elastically belt is fixedly connected between fixed strip and movable strip, elastically belt is located at the side of substrate away from capacitor.In people weld capacitor well, people pull movable strip upward and clamp and fix in fixed strip, at this time, elastically belt is wrapped in capacitor outside and fixes the position of capacitor, with the constraint of elastically belt, after capacitor is impacted, displacement amount also will not be too large, guarantee the safety of pin, epoxy resin has the characteristics of high strength, guarantee the strength of substrate as a whole.

Description

Technical Field

[0001] This utility model relates to the field of printed circuits, and more specifically, to a circuit board. Background Technology

[0002] A circuit board is a basic component used to connect and support electronic components. It is widely used in various electronic devices and typically consists of one or more layers of insulating material, with circuits formed by conductive materials such as copper wires. The function of a circuit board is to provide electrical connections, support electronic components, and realize the functions required in the circuit design.

[0003] The components on existing circuit boards vary in size. Among them, capacitors and resistors are fixedly connected to the circuit board by two leads. Some capacitors are relatively large and protrude from the circuit board. The leads at both ends of the capacitor are relatively thin and flexible, which makes the capacitor prone to large displacement when it is bumped, thus affecting the safety of the leads.

[0004] Therefore, a new solution is needed to address this problem. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a circuit board.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a circuit board, including a substrate, the substrate having two soldering holes, a capacitor soldered on the substrate between the two soldering holes, a fixed strip and a movable strip located between the two soldering holes on the substrate, the fixed strip and the movable strip being located on opposite sides of the capacitor, an elastic band being fixedly connected between the fixed strip and the movable strip, the elastic band being located on the side of the substrate facing away from the capacitor, and the movable strip being able to drive the elastic band to be wrapped around the capacitor and then snapped and fixed on the fixed strip.

[0007] The present invention is further configured such that: the substrate has two rectangular grooves on one side of the capacitor, and the number of elastic bands is two, the two elastic bands passing through the two rectangular grooves respectively and then being fixedly connected to the movable strip.

[0008] The present invention is further configured such that: a long groove is provided on the substrate, and a limiting strip is provided on the substrate that is always located in the long groove; one end of the limiting strip passes through the long groove and is fixedly connected to the fixing strip; and one end of each of the two elastic bands facing away from the movable strip is fixed to the limiting strip.

[0009] The present invention is further configured such that: the top surface of the fixed strip is provided with an embedding groove, the inner side wall of the embedding groove is provided with a slot communicating with the outside, and the top surface of the movable strip is provided with a locking wing, which can be locked into the slot by its own deformation.

[0010] The present invention is further configured such that: the card wing is provided with an inclined surface and a flat surface, the inclined surface deforms the card wing in the direction away from the card groove by abutting against the outer edge of the embedding groove, and the flat surface is used to contact the inner top surface of the card groove.

[0011] The present invention is further configured such that the limiting strip and the fixing strip are fixed to each other by screws, and the width of the opposite ends of the limiting strip and the fixing strip is greater than the width of the long groove.

[0012] In summary, this utility model has the following beneficial effects:

[0013] During the capacitor soldering process, the fixed strip and movable strip are located on one side of the substrate where the capacitor is placed, while the elastic strip is located on the other side of the substrate. All of these strips are positioned between two soldering holes, and their distance from the holes is relatively large, so they do not affect the soldering process. After the capacitor is soldered, the movable strip is pulled upwards and snapped onto the fixed strip. At this time, the elastic strip covers the outside of the capacitor and fixes its position. With the constraint of the elastic strip, the displacement of the capacitor will not be too large after being impacted, ensuring the safety of the pins. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a partial structural schematic diagram of the present invention;

[0016] Figure 3 This is a partial cross-sectional view of the present invention;

[0017] Figure 4 for Figure 3 Enlarged view of part A in the middle.

[0018] In the diagram: 1. Substrate; 2. Welding hole; 3. Capacitor; 4. Fixing strip; 5. Movable strip; 6. Elastic band; 7. Rectangular groove; 8. Long strip groove; 9. Limiting strip; 10. Embedding groove; 11. Card slot; 12. Card wing. Detailed Implementation

[0019] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0020] Circuit boards, such as Figure 1 and Figure 2As shown, the system includes a substrate 1 with two solder holes 2 and an annular pad coaxially aligned with the solder holes 2. A capacitor 3 is soldered onto the substrate 1 between the two solder holes 2. Leads are fixedly connected to both ends of the capacitor 3. The leads pass through the two solder holes 2 and are soldered to the pads using soldering technology. A fixed strip 4 and a movable strip 5 are located between the two solder holes 2 on the substrate 1, on opposite sides of the capacitor 3. An elastic band 6 is fixedly connected between the fixed strip 4 and the movable strip 5, located on the side of the substrate 1 facing away from the capacitor 3. The movable strip 5 can move the elastic band 6 to wrap around the capacitor 3 and then lock it onto the fixed strip 4. During the welding process of capacitor 3, the fixed strip 4 and the movable strip 5 are located on one side of the substrate 1 where capacitor 3 is set, and the elastic strip is located on the other side of the substrate 1. All of them, including the fixed strip 4, the movable strip 5, and the elastic strip 6, are located between the two welding holes 2. They are far away from the welding holes 2 and will not affect the welding process. After the capacitor 3 is welded, the movable strip 5 is pulled upward and snapped onto the fixed strip 4. At this time, the elastic strip 6 covers the capacitor 3 and fixes the position of the capacitor 3. With the constraint of the elastic strip 6, the displacement of the capacitor 3 will not be too large after being impacted, thus ensuring the safety of the pins. The substrate 1 is made of epoxy resin, which ensures the overall strength of the substrate 1.

[0021] like Figure 3 and Figure 4As shown, the substrate 1 has two rectangular slots 7 on one side of the capacitor 3. There are two elastic bands 6, each passing through one of the rectangular slots 7 and then fixedly connected to the movable strip 5. The two elastic bands increase the binding strength of the capacitor 3 and further reduce its displacement. The substrate 1 also has a long slot 8, and a limiting strip 9 that is always located within the long slot 8. One end of the limiting strip 9 passes through the long slot 8 and is fixedly connected to the fixing strip 4. The ends of the two elastic bands 6 facing away from the movable strip 5 are both fixed to the limiting strip 9. The limiting strip 9 and the fixed strip 4... The width of each of the opposite ends of the strips 4 is greater than the width of the long groove 8. The limiting strip 9 and the fixing strip 4 are respectively clamped on both sides of the substrate 1, so that the fixing strip 4 will not move on the substrate 1. The length of the elastic band 6 in its natural state is less than the distance between the long groove 8 and the rectangular groove 7. This arrangement allows the elastic band 6 to exert a certain tension on the movable strip 5, making it difficult for the movable strip 5 to get close to the capacitor 3 under the action of external force, thus facilitating the soldering and fixing of the capacitor 3. The top surface of the fixing strip 4 has an embedding groove 10, and the inner side wall of the embedding groove 10 has a slot 1 that communicates with the outside. 1. The top surface of the movable strip 5 is provided with a locking wing 12. The locking wing 12 can be locked into the locking groove 11 by its own deformation, making it convenient for people to fix the movable strip 5 by locking. The locking wing 12 has an inclined surface and a flat surface. The inclined surface abuts against the outer edge of the insertion groove 10, causing the locking wing 12 to deform in the direction away from the locking groove 11. The flat surface is used to contact the inner top surface of the locking groove 11. During the process of locking the movable strip 5, the inclined surface on the locking wing 12 first abuts against the outer edge of the insertion groove 10, causing the locking wing 12 to deform in the direction away from the locking groove 11, so that the locking wing 12 as a whole can continue to be embedded into the insertion groove 10. When the card wing 12 moves to the position of the card slot 11, the deformation of the card wing 12 will be restored, so that the card wing 12 is embedded in the card slot 11, and the surface of the card wing 12 in contact with the inner wall of the card slot 11 is flat. This setting makes it difficult for the movable strip 5 to detach from the fixed strip 4, ensuring the binding strength of the elastic band 6 for the capacitor 3. The limiting strip 9 and the fixed strip 4 are fixed to each other by screws. The screw fixing method ensures the fixing strength between the limiting strip 9 and the fixed strip 4, and on the other hand, if the capacitor 3 needs to be replaced or repaired later, the elastic band 6 can be removed by removing the screws.

[0022] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A circuit board comprising a substrate (1), wherein the substrate (1) has two solder holes (2), and a capacitor (3) is soldered onto the substrate (1) between the two solder holes (2), characterized in that: The substrate (1) is provided with a fixed strip (4) and a movable strip (5) located between two welding holes (2). The fixed strip (4) and the movable strip (5) are located on both sides of the capacitor (3). An elastic band (6) is fixedly connected between the fixed strip (4) and the movable strip (5). The elastic band (6) is located on the side of the substrate (1) facing away from the capacitor (3). The movable strip (5) can drive the elastic band (6) to be wrapped around the capacitor (3) and then snapped and fixed on the fixed strip (4).

2. The circuit board according to claim 1, characterized in that: The substrate (1) has two rectangular slots (7) on one side of the capacitor (3). There are two elastic bands (6). The two elastic bands (6) pass through the two rectangular slots (7) respectively and are then fixedly connected to the movable strip (5).

3. The circuit board according to claim 2, characterized in that: The substrate (1) is also provided with a long groove (8), and the substrate (1) is provided with a limiting strip (9) that is always located in the long groove (8). One end of the limiting strip (9) passes through the long groove (8) and is fixedly connected to the fixing strip (4). The ends of the two elastic bands (6) facing away from the movable strip (5) are fixed on the limiting strip (9).

4. The circuit board according to claim 3, characterized in that: The top surface of the fixed strip (4) is provided with an embedding groove (10), and the inner side wall of the embedding groove (10) is provided with a slot (11) that communicates with the outside. The top surface of the movable strip (5) is provided with a card wing (12), and the card wing (12) can be inserted into the card slot (11) by its own deformation.

5. The circuit board according to claim 4, characterized in that: The card wing (12) is provided with an inclined surface and a flat surface. The inclined surface deforms the card wing (12) in the direction away from the card slot (11) by abutting the outer edge of the embedding groove (10). The flat surface is used to contact the inner top surface of the card slot (11).

6. The circuit board according to claim 3, characterized in that: The limiting strip (9) and the fixing strip (4) are fixed to each other by screws. The width of the limiting strip (9) and the fixing strip (4) at opposite ends is greater than the width of the long groove (8).

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