Firmly-welded SMD (Surface Mount Device) diode
By setting specific welding structures on the welding feet of the patch diode, such as welding stability mating grooves, welding fastening connection grooves and welding safety reinforcement columns, the stability and strength problems during welding are solved, and firmer connections and higher welding efficiency are achieved.
Patent Information
- Application Number
- CN202422135360.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-02
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-09-02
AI Technical Summary
During welding of existing chip diodes, the welding stability of the connection position cannot be guaranteed, which is prone to hollowing and unstable connection strength.
A welded firm patch diode is designed. By setting welding stable mating grooves, welding fastening connection grooves and welding safety reinforcement columns on the welding feet, we ensure that the fusion area between the welding material and the diode welding structure is larger and the connection strength is better.
It improves the connection firmness and position stability during welding, avoids the occurrence of hollowing, improves welding efficiency, extends service life, and enhances safety and durability.
Smart Images
Figure CN223038935U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of diodes, in particular to a firmly welded patch diode. Background Art
[0002] During production, diodes are divided into pin-type plug-in diodes and surface mount diodes. The surface mount position of existing surface mount diodes uses an L-shaped welding plate. During welding, the position stability between the connection position and the surface mount position on the circuit board cannot be guaranteed. During welding, the welding of the connection position is prone to hollowing, and the connection strength of the welding position is unstable. Utility Model Content
[0003] The purpose of the utility model is to provide a firmly welded chip diode, which ensures a larger fusion area between the welding material and the diode welding structure during welding through a welding stable matching groove arranged at the welding position, and better matching connection strength; the welding position is provided with welding fastening connection grooves and welding safety reinforcement columns at upper and lower positions, which can be staggered and fused with the solder buried during welding, so that the connection is more firm, the welding position stability is more reliable, the welding efficiency is also higher, and the situation that hollowing is easy to occur at the welding position is effectively avoided, and the safety and durability are higher during later use.
[0004] The technical solution of the utility model is as follows:
[0005] A soldering-secured patch diode comprises a diode main body structure, wherein welding legs are respectively arranged on the left and right sides of the lower end of the diode main body structure, and the characteristic is that a soldering stabilizing matching groove is arranged in the middle position in the front-to-back direction of the soldering leg, a soldering fastening connection groove is arranged at the lower end of the soldering leg, a soldering safety reinforcement column is arranged at the upper end of the soldering leg directly above the soldering fastening connection groove, and the soldering fastening connection groove and the soldering safety reinforcement column are processed by means of concave pressing.
[0006] Furthermore, the welding legs are composed of three groups of welding support matching plates evenly distributed front and back.
[0007] Furthermore, the welding fastening connection groove is a conical structure.
[0008] Furthermore, the length of the connecting support matching plate in the front-to-back direction is greater than two-thirds of the length of the main body matching mounting column in the front-to-back direction.
[0009] Furthermore, a safety-matching rounded corner structure is provided at the outer edge of the welding leg.
[0010] Beneficial effects of the utility model:
[0011] The utility model provides a welding stable matching groove when welding, which ensures a larger fusion area between the welding material and the diode welding structure during welding, and a better matching connection strength. The welding position is equipped with welding fastening connection grooves and welding safety reinforcement columns at upper and lower positions, which can be staggered and fused with the solder buried during welding, so that the connection is more firm, the welding position stability is more reliable, the welding efficiency is also higher, and the occurrence of hollowing at the welding position is effectively avoided. The safety and durability are higher during later use. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0013] Figure 2 It is a front schematic diagram of the utility model;
[0014] Figure 3 It is a left side schematic diagram of the utility model;
[0015] Figure 4 It is a schematic diagram of the right side of the utility model;
[0016] Figure 5 It is a top view schematic diagram of the utility model;
[0017] Figure 6 It is a bottom view schematic diagram of the utility model;
[0018] Figure 7 It is a schematic diagram of the three-dimensional structure of the utility model in the second direction;
[0019] In the figure: 1. Diode main structure, 2. Welding feet, 3. Welding stable matching grooves, 4. Welding fastening connection grooves, 5. Welding safety reinforcement columns. DETAILED DESCRIPTION
[0020] like Figures 1 to 7As shown in the figure, a soldering firm surface mount diode includes a diode main body structure 1. On the left and right sides of the lower end of the diode main body structure 1, soldering legs 2 are respectively provided. At the middle position of the soldering legs 2 in the front-back direction, a soldering stable fitting groove 3 is provided, ensuring that during soldering, the fusion space between the solder and the soldering structure is larger and the fitting stability is better. At the lower end of the soldering legs 2, a soldering fastening connection groove 4 is provided. At the position directly above the soldering fastening connection groove 4 at the upper end of the soldering legs 2, a soldering safety reinforcement column 5 is provided. During use, the solder can be respectively fused with the upper and lower structures in a staggered manner, ensuring that the overall connection strength during soldering is more stable, the safety during use is higher, and the contact at the soldering position is more precisely stable. The soldering fastening connection groove 4 and the soldering safety reinforcement column 5 are processed by indentation, which is more convenient during processing and the production efficiency is relatively high. During soldering, through the soldering stable fitting groove provided at the soldering position, it is ensured that the fusion area between the soldering material and the diode soldering structure during soldering is larger, the fitting connection strength is better. The soldering position can be fused with the solder during soldering in a staggered manner through the soldering fastening connection groove and the soldering safety reinforcement column provided at the upper and lower positions, making the firmness during connection better, the position stability during soldering more reliable, and the soldering efficiency higher. It effectively avoids the occurrence of the situation where the soldering position is prone to air pockets, the safety during later use is higher, and the durability is stronger.
[0021] Preferably, the soldering legs 2 are composed of three groups of soldering support fitting plates evenly distributed in the front and back direction, with better soldering cooperation strength during soldering and longer service life during use.
[0022] Preferably, the soldering fastening connection groove 4 is a conical structure, which is more convenient for production and processing. During soldering, the solder is more likely to flow into the interior of this structure, making the soldering efficiency higher, the connection tightness at the soldering position better, and the firmness more reliable.
[0023] Preferably, a safety fitting rounded corner structure is provided at the outer edge position of the soldering legs 2, with better safety during use and avoiding the existence of sharp corner structures.
[0024] The above is the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements or replacements can be made, and these improvements or replacements should also be regarded as the protection scope of the present invention.
Claims
1. A solder-fastened chip diode, comprising a diode main structure (1), wherein the left and right sides of the lower end of the diode main structure (1) are respectively provided with soldering legs (2), characterized in that: A welding stabilizing matching groove (3) is provided at the middle position in the front-to-back direction of the welding support leg (2); a welding fastening connection groove (4) is provided at the lower end of the welding support leg (2); a welding safety reinforcement column (5) is provided at the upper end of the welding support leg (2) directly above the welding fastening connection groove (4); the welding fastening connection groove (4) and the welding safety reinforcement column (5) are formed by pressing and concave processing.
2. A solder-fastened chip diode according to claim 1, characterized in that: The welding support leg (2) is composed of three groups of welding support matching plates evenly distributed front and back.
3. A solder-fastened chip diode according to claim 1, characterized in that: The welding fastening connection groove (4) is a conical structure.
4. A solder-fastened chip diode according to claim 1, characterized in that: The outer edge of the welding leg (2) is provided with a safety matching rounded corner structure.