A soldering type capacitor seat plate
By setting arc grooves and bump structures in the capacitor base plate, the hot air flowability and contact area are increased, and the trapezoidal groove design is used to control the rigid rebound of the guide needle, which improves the welding stability of the capacitor, solves the problem of loosening or falling off in the circuit board, and improves the welding efficiency.
Patent Information
- Application Number
- CN202110749795.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-07-02
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2041-07-02
AI Technical Summary
The capacitors are prone to loosening or falling off in the circuit board, resulting in electrical equipment failure. The existing shock-resistant capacitors are difficult to ensure a firm connection in high-frequency and high-amplitude environments, and the welding effect is poor.
The welding-assisted capacitor base plate is designed, and the thermal air flow and contact area are increased by setting arc grooves and bumps in the base. The trapezoidal groove design is used to control the rigid rebound distance of the guide needle, improve the thermal stability of the reflow soldering and avoid the guide needle being raised.
It improves the welding stability and efficiency of the capacitor, solves the problem of loosening or falling off the capacitor, and has great promotional value and practicality.
Smart Images

Figure CN115565779B_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the field of capacitors, in particular to a soldering type capacitor seat plate. Background Art
[0002] Capacitors are one of the electronic components used extensively in electronic devices. They are an essential component of circuits and are fixed to circuit boards by welding. As the application areas of electronic products continue to expand, their application environments are becoming increasingly harsh, especially in working environments with high vibration. Capacitors are prone to loosening or falling off on circuit boards, causing electrical equipment to malfunction and fail to operate. Existing anti-vibration capacitors have difficulty ensuring a secure connection between the capacitor and the circuit board in high-frequency, high-amplitude working environments. The uneven reflow soldering temperature during capacitor installation on the circuit board results in poor soldering results, making the capacitor prone to loosening or falling off. Summary of the Invention
[0003] The object of the present invention is to overcome the shortcomings of the prior art and provide a soldering-type capacitor base plate. By providing an arc-shaped groove and a bump structure in the base, the fluidity and contact area of the hot air at the solder joint are increased, so that the temperature of the guide pin reaches a high temperature before other parts, thereby improving the thermal stability of reflow soldering. The groove is configured as a trapezoidal groove so that there is an inclined surface gap between the guide pin and the groove, which helps to control the rigid rebound distance of the first guide pin and the second guide pin after being flattened, and prevents the pin from warping after being bent, thereby improving the heating effect of the guide pin solder, improving the stability and efficiency of welding, and solving the problem of loosening or falling off of the capacitor.
[0004] The present invention solves the technical problem by adopting the following technical solutions:
[0005] A soldering capacitor base plate, characterized in that it includes a base, a first guide pin groove, a second guide pin groove, a first arcuate groove, a second arcuate groove, a first through hole, a second through hole, a bump, a notch, a bottom surface, a circular groove, a first guide pin, a second guide pin, and a capacitor body; the lower end surface of the base is provided with the first guide pin groove and the second guide pin groove; one end of the first guide pin groove is provided with a first through hole; one end of the second guide pin groove is provided with a second through hole; the lower end surface of the base is provided with the first arcuate groove and the second arcuate groove; the lower end surface of the base is provided with a bump; the side surface of the base is provided with a notch, the notch intersecting one end of the first guide pin groove and the second guide pin groove; the upper end surface of the base is provided with a circular groove; the edge of the circular groove is provided with a first boss and a second boss; the first boss is higher than the second boss.
[0006] Furthermore, there are four protrusions in total, two protrusions are symmetrically arranged on both sides of the first needle guide groove, and two protrusions are symmetrically arranged on both sides of the second needle guide groove, and the first needle guide groove and the second needle guide groove are on the same horizontal straight line.
[0007] Furthermore, the first arc-shaped groove is connected to and connected with the first needle guide groove, the second arc-shaped groove is connected to and connected with the second needle guide groove, and the first needle guide groove, the second needle guide groove, the first arc-shaped groove, and the second arc-shaped groove are all on the same plane.
[0008] Furthermore, the first needle guide groove and the second needle guide groove are trapezoidal grooves, which extend obliquely from one end close to the first through hole and the second through hole to the side of the base, and the groove head and groove tail of the first needle guide groove and the second needle guide groove form an inclined surface.
[0009] Furthermore, the bottom surface has a horizontal height higher than the height of the protrusion.
[0010] Furthermore, the capacitor body is vertically arranged in the circular groove, the first guide pin passes through the first through hole and is bent to fit in the first guide pin groove, the second guide pin passes through the second through hole and is bent to fit in the first guide pin groove, and the first guide pin and the second guide pin are bent to form a certain gap with the bottom of the first guide pin groove and the second guide pin groove respectively, which helps to control the rigid rebound distance of the first guide pin and the second guide pin after being flattened.
[0011] The advantages and positive effects of the present invention are:
[0012] The present invention provides a soldering-type capacitor base plate. By arranging an arc-shaped groove and a protrusion structure in a base, the fluidity and contact area of hot air at the solder joint are increased, so that the temperature of the guide pin reaches a high temperature before other parts, and the thermal stability of reflow soldering is improved. The groove is arranged as a trapezoidal groove so that there is an inclined surface gap between the guide pin and the groove, which helps to control the rigid rebound distance of the first guide pin and the second guide pin after being flattened, and prevents the pin from warping after being bent, thereby improving the heating effect of the guide pin solder, improving the stability and efficiency of welding, and solving the problem of loosening or falling off of the capacitor. The capacitor base plate has great promotion value and practicality. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention from the first viewing angle.
[0014] Figure 2 It is a schematic diagram of the three-dimensional structure from a second viewing angle of the present invention.
[0015] Figure 3 It is a schematic diagram of the three-dimensional structure of the base and capacitor body combination of the present invention from the first perspective.
[0016] Figure 4 It is a schematic diagram of the three-dimensional structure of the base and capacitor body combination of the present invention from a second viewing angle.
[0017] Figure 5 It is a schematic diagram of the front elevation structure of the present invention.
[0018] Figure 6It is a partially enlarged structural schematic diagram of the front elevation of the present invention.
[0019] Explanation of the accompanying drawings: 1. base; 2. first guide pin groove; 3. second guide pin groove; 4. first arc-shaped groove; 5. second arc-shaped groove; 6. first through hole; 7. second through hole; 8. bump; 9. notch; 10. bottom surface; 11. circular groove; 12. first guide pin; 13. second guide pin; 14. capacitor body; 15. first boss; 16. second boss. DETAILED DESCRIPTION
[0020] The embodiments of the present invention are further described in detail with reference to the accompanying drawings:
[0021] like Figures 1-6 As shown, a soldering type capacitor seat plate described in the present invention is characterized in that: it includes a base 1, a first guide pin groove 2, a second guide pin groove 3, a first arc-shaped groove 4, a second arc-shaped groove 5, a first through hole 6, a second through hole 7, a protrusion 8, a notch 9, a bottom surface 10, a circular groove 11, a first guide pin 12, a second guide pin 13, and a capacitor body 14; the lower end surface of the base 1 is provided with the first guide pin groove 2 and the second guide pin groove 3; one end of the first guide pin groove 2 is provided with a first through hole 6; one end of the second guide pin groove 3 is provided with a second through hole 7; the lower end surface of the base 1 is provided with a first arc-shaped groove 4 and a second arc-shaped groove 5; the lower end surface of the base 1 is provided with a protrusion 8; the side of the base 1 is provided with a notch 9, and the notch 9 is connected with one end of the first guide pin groove 2 and the second guide pin groove 3. A circular groove 11 is provided on the upper end surface of the base 1 ; a first boss 15 and a second boss 16 are provided on the edge of the circular groove 11 ; the first boss 15 is higher than the second boss 16 .
[0022] There are four protrusions 8 in total, two protrusions 8 are symmetrically arranged on both sides of the first guide pin groove 2, and two protrusions 8 are symmetrically arranged on both sides of the second guide pin groove 3. The first guide pin groove 2 and the second guide pin groove 3 are on the same horizontal straight line. The protrusions 8 are all on the same horizontal plane, and the height of the protrusions 8 is consistent. The horizontal height of the bottom surface 10 is higher than the height of the protrusions 8. A height difference is formed in space. When the capacitor is installed, the bottom surface 10 of the base 1 fits tightly with the circuit board. Since the horizontal height of the bottom surface 10 is higher than the height of the protrusions 8, there is a certain gap between the top surfaces of the four protrusions 8 and the circuit board. Hot air can directly enter the interior, playing a role in air flow conduction. When the capacitor is installed in the circuit board, it is easier to obtain a stable and uniform temperature during reflow soldering, so that the first guide pin 12 and the second guide pin 13 are quickly heated and heated evenly, thereby improving the efficiency of reflow soldering. On the other hand, the first arc groove (4) is connected to and connected with the first guide pin groove 2, and the second arc groove 5 is connected to and connected with the second guide pin groove 3, and the first guide pin groove 2, the second guide pin groove 3, the first arc groove 4, and the second arc groove 5 are all on the same plane. Adding a reflow channel to the inner side of the first guide pin 12 and the second guide pin 13 increases the contact area with hot air while preventing the air from passing through the hollow space. When reflow soldering, the temperature plays a guiding role on the second arc groove 5 and the second guide pin groove 3. The temperature in the environment is more easily transferred to the area where the first guide pin 12 and the second guide pin 13 are located through the second arc groove 5 and the second guide pin groove 3, so that the bottom end of the base 1 quickly obtains a uniform temperature.
[0023] The first and second needle guide slots 2 and 3 are trapezoidal slots, extending obliquely from one end near the first through hole 6 and the second through hole 7 toward the side of the base 1. The first and second needle guide slots 2 and 3 form an inclined surface at their ends. The first needle guide slot 2 has a first through hole 6 at one end, which is interconnected with the first needle guide slot 2. The second needle guide slot 3 has a second through hole 7 at one end, which is interconnected with the second needle guide slot 3.
[0024] The upper end surface of the base 1 is provided with a circular groove 11, the diameter of which matches the outer diameter of the capacitor body 14. A first boss 15 and a second boss 16 are provided along the edge of the circular groove 11; the first boss 15 is higher than the second boss 16. The first boss 15 and the second boss 16 serve to secure the capacitor body 14, providing it with shock-resistant properties. A notch 9 is provided on the side of the base 1, intersecting one end of the first guide pin slot 2 and the second guide pin slot 3. The design of the notch 9 increases the exposed area of the first guide pin 12 and the second guide pin 13, facilitating heat conduction and improving heat conduction performance of the container body 14.
[0025] The capacitor body 14 is vertically disposed in the circular groove 11. The first guide pin 12 passes through the first through hole 6 and is bent to fit within the first guide pin groove 2. The second guide pin 13 passes through the second through hole 7 and is bent to fit within the first guide pin groove 2. After being bent, the first guide pin 12 and the second guide pin 13 form a certain gap with the bottom of the first guide pin groove 2 and the second guide pin groove 3, respectively, to help control the rigid rebound distance of the first guide pin 12 and the second guide pin 13 after being flattened. Because the first guide pin groove 2 and the second guide pin groove 3 are trapezoidal grooves, an angle is formed between the first guide pin 12 and the first guide pin groove 2 after the first guide pin 12 passes through the first through hole 6 and is bent. Because the first guide pin groove 2 and the second guide pin groove 3 are trapezoidal grooves, the first guide pin 12 and the second guide pin 13 are more aligned after being bent, avoiding the defect of the first guide pin 12 and the second guide pin 13 being tilted after being bent. On the other hand, the first guide pin groove 2 and the second guide pin groove 3 are trapezoidal grooves, so that the temperature conduction during reflow soldering is more sufficient to transfer heat to the first guide pin 12 and the second guide pin 13, so that the first guide pin 12 and the second guide pin 13 can quickly reach a stable temperature, thereby improving the stability and efficiency of welding.
[0026] It should be emphasized that the embodiments described in the present invention are illustrative rather than restrictive. Therefore, the present invention is not limited to the embodiments described in the specific implementation methods. Any other implementation methods derived by those skilled in the art based on the technical solutions of the present invention also fall within the scope of protection of the present invention.
Claims
1. A soldering type capacitor seat plate, characterized in that: The invention comprises a base (1), a first guide needle groove (2), a second guide needle groove (3), a first arc-shaped groove (4), a second arc-shaped groove (5), a first through hole (6), a second through hole (7), a protrusion (8), a notch (9), a bottom surface (10), a circular groove (11), a first guide needle (12), a second guide needle (13), and a capacitor body (14); the lower end surface of the base (1) is provided with a first guide needle groove (2) and a second guide needle groove (3); the first guide needle groove (2) and the second guide needle groove (3) are on the same horizontal straight line; one end of the first guide needle groove (2) is provided with a first through hole (6); one end of the second guide needle groove (3) is provided with a second through hole (7); the first guide needle groove (2) and the second guide needle groove (3) are trapezoidal grooves, extending from one end close to the first through hole (6) and the second through hole (7) toward the base (1). ) side is inclined and extends to the side of the base (1), and the groove head and groove tail of the first guide needle groove (2) and the second guide needle groove (3) form an inclined surface; the lower end surface of the base (1) is provided with a first arc groove (4) and a second arc groove (5); the lower end surface of the base (1) is provided with a protrusion (8); two protrusions (8) are symmetrically provided on both sides of the first guide needle groove (2), and two protrusions (8) are symmetrically provided on both sides of the second guide needle groove (3); a notch (9) is opened on the side of the base (1), and the notch (9) is connected with one end of the first guide needle groove (2) and the second guide needle groove (3); the upper end surface of the base (1) is provided with a circular groove (11); the edge of the circular groove (11) is provided with a first boss (15) and a second boss (16); the first boss (15) is higher than the second boss (16).
2. The soldering type capacitor seat plate according to claim 1, characterized in that: The first arc-shaped groove (4) is connected to and interpenetrates with the first needle guide groove (2), and the second arc-shaped groove (5) is connected to and interpenetrates with the second needle guide groove (3), and the first needle guide groove (2), the second needle guide groove (3), the first arc-shaped groove (4), and the second arc-shaped groove (5) are all on the same plane.
3. The soldering type capacitor seat plate according to claim 1, characterized in that: The horizontal height of the bottom surface (10) is higher than the height of the protrusion (8).
4. The soldering type capacitor seat plate according to claim 1, characterized in that: The capacitor body (14) is vertically arranged in the circular groove (11); the first guide pin (12) passes through the first through hole (6) and is bent and fitted into the first guide pin groove (2); the second guide pin (13) passes through the second through hole (7) and is bent and fitted into the first guide pin groove (2); after being bent, the first guide pin (12) and the second guide pin (13) form a certain gap with the bottom of the first guide pin groove (2) and the bottom of the second guide pin groove (3), respectively, to help control the rigid rebound distance of the first guide pin (12) and the second guide pin (13) after being flattened.
Citation Information
Patent Citations
Soldering-aid capacitor seat plate
CN214898091U