CN-224205070-U - Support structure of opposite SSR optocoupler

Abstract

The utility model relates to the technical field of SSR optocouplers, in particular to a support structure of a pair of vertical SSR optocouplers, which realizes direct light path alignment of a light emitting diode and a bidirectional photosensitive silicon controlled rectifier through symmetrical design of a PT support and an IR support and opposite distribution of PT base islands and also solves the technical problems that an existing SSR optocoupler support structure is low in light transmission efficiency, easy to form short circuits and large in number of conducting wires due to the fact that an L-shaped output pin extends to the end part of an adjacent pin and is provided with the PT base islands, different base islands are separated from the bidirectional thyristor and insulating glue is prevented from overflowing to a photosensitive silicon controlled rectifier chip, short circuit probability is reduced, meanwhile, the conducting paths are optimized through the layout of the discrete base islands, the quantity of the conducting wires is reduced to the minimum, quality hidden hazards such as wire collapse and wire breakage in gold wire material cost and wire bonding technology are reduced, and production yield and product reliability are improved.

Inventors

• Fang Chengying
• WANG CHAOJIN
• ZHOU XINGXI
• CHEN SHICAI

Assignees

• 苏州泓冠半导体有限公司

Dates

Publication Date

20260505

Application Date

20250529

Claims (5)

1. 1. The utility model provides a supporting structure of opposite type SSR opto-coupler, includes PT support (1) and IR support (2), its characterized in that: The PT bracket (1) comprises two PT side rails (11) which are symmetrically arranged, a plurality of PT connecting ribs (12) are arranged between the two PT side rails (11), a plurality of groups of PT pins (13) are arranged on the PT connecting ribs (12), each group of PT pins (13) comprises three output pins (131) which are arranged in parallel, the output pins (131) positioned on one side of the PT bracket are L-shaped and extend to the end parts of the output pins (131) on the other side, and the end parts of the L-shaped output pins (131) and the end parts of the output pins (131) positioned in the middle are respectively provided with PT base islands (132) for respectively installing a bidirectional thyristor and a bidirectional photosensitive thyristor; The IR support (2) comprises two IR side rails (21) which are symmetrically arranged, a plurality of IR connecting ribs (22) are arranged between the two IR side rails (21), a plurality of IR pins (23) are arranged on the IR connecting ribs (22), each IR pin (23) comprises a plurality of input pins (231) which are arranged in parallel, and one of the input pins (231) is provided with an IR base island (232) which is distributed in opposite mode with the PT base island (132).
2. 2. A stand structure of an opposite SSR optocoupler according to claim 1, characterized in that the projection of the IR base island (232) onto the plane of the PT base island (132) overlaps the PT base island (132) on the output pin (131) in the middle.
3. 3. A stand structure of a stereoscopic SSR optocoupler according to claim 1, characterized in that the L-shaped output pins (131) are provided with welds (133) extending in the direction of PT islands (132) located on the intermediate output pins (131).
4. 4. A stand structure of a dual-pair SSR optocoupler according to claim 1, characterized in that a plurality of positioning holes (3) are provided on the output pins (131) and the input pins (231).
5. 5. The stand structure of a dual-pair SSR optocoupler according to claim 1, wherein the two sides of the output pin (131) in the middle are provided with limiting parts (134).

Description

Support structure of opposite SSR optocoupler Technical Field The utility model relates to the technical field of SSR optocouplers, in particular to a bracket structure of a vertical SSR optocoupler. Background The relay circuit is mainly used in the markets of household appliances and industrial equipment, is commonly used in equipment such as air conditioners, microwave ovens, clothes machines, personal hygiene systems, refrigerators, fan heaters, induction heating cookers, water heaters and the like, has the main functions of driving a load switch and the like, is commonly used for controlling the load by adopting a bidirectional thyristor optocoupler to drive a bidirectional thyristor in conventional design, and also comprises a plurality of electronic components such as resistors, capacitors and the like, so that the circuit needs to be composed of a plurality of electronic components, occupies a larger PCB area, and has increased probability of faults due to the relatively large number of the electronic components. The planar SSR optocoupler has the advantages that the technical proposal is 202411881794.7, the design solves the problems at the application end of the optocoupler, but the structure has certain quality hidden trouble in the optocoupler packaging process, and the technical proposal is that 1. The planar packaging structure has low light transmission efficiency, the LEDs usually need to be refracted to a light receiving area through LENS after emitting light, a large amount of light intensity loss is caused in the process, and meanwhile, the starting current of the photosensitive silicon controlled rectifier is increased, 2, the thyristor insulating glue is difficult to control in the process control, and easily causes glue overflow to a bidirectional photosensitive silicon controlled rectifier chip to cause short circuit, 3, the conducting wires are too much to cause quality hidden trouble, the conducting wires are usually not well controlled by a wire bonding machine, the quality of products is easily affected by the wire collapse in the process, the fewer the conducting wires are on the basis, the quality hidden trouble is less, meanwhile, the conducting wires are usually gold, the gold wires are more in number, the cost is higher, and the optocoupler and the corresponding support structure are required to be improved. Disclosure of utility model Aiming at the defects of the prior art, the utility model provides a support structure of a vertical SSR optocoupler, which solves the technical problems that the existing SSR optocoupler support structure has low light transmission efficiency, is easy to overflow glue to form short circuit and has more conductive wires after being packaged into the SSR optocoupler. In order to solve the technical problems, the utility model provides a support structure of a vertical SSR optocoupler, which comprises a PT support and an IR support; The PT bracket comprises two PT side rails which are symmetrically arranged, a plurality of PT connecting ribs are arranged between the two PT side rails, a plurality of groups of PT pins are arranged on the PT connecting ribs, each group of PT pins comprises three output pins which are arranged in parallel, the output pins on one side of the PT bracket are L-shaped and extend to the end parts of the output pins on the other side, and the end parts of the L-shaped output pins and the end parts of the output pins in the middle are respectively provided with a PT base island which is respectively provided with a bidirectional thyristor and a bidirectional photosensitive thyristor; The IR support comprises two IR side rails which are symmetrically arranged, a plurality of IR connecting ribs are arranged between the two IR side rails, a plurality of groups of IR pins are arranged on the IR connecting ribs, each group of IR pins comprises a plurality of input pins which are arranged in parallel, and one of the input pins is provided with an IR base island which is oppositely distributed with the PT base island. Preferably, the projection of the IR pad on the plane on which the PT pad is located overlaps the PT pad on the output pin located in the middle. Preferably, the L-shaped output pins are provided with solder portions extending in the direction of PT islands on the intermediate output pins. Preferably, a plurality of the output pins and the input pins are provided with positioning holes. Preferably, limiting parts are arranged on two sides of the output pin in the middle. By means of the technical scheme, the utility model provides a support structure of a vertical SSR optocoupler, which has at least the following beneficial effects: 1. According to the utility model, through the symmetrical design of the PT bracket and the IR bracket and the opposite distribution of the PT base island and the IR base island, the direct light path alignment of the light emitting diode and the bidirectional photosensitive silicon cont