Stacked crystal type power-controllable optical relay packaging device

Abstract

The utility model discloses a stacked-crystal-type power-controllable optical relay packaging device, and the device comprises a first guide pin; the insulating block is arranged on the first guide pin; the optical three-terminal bidirectional AC switch is arranged on the insulating block and is electrically connected with the first guide pin; the light-transmitting insulating block is arranged on the light three-terminal bidirectional alternating-current switch; the second guide pin is adjacent to the first guide pin; the power three-terminal bidirectional AC switch is arranged on the first guide pin and is electrically connected with the first guide pin, the second guide pin and the optical three-terminal bidirectional AC switch; the third guide pin is adjacent to the second guide pin; the fourth guide pin is arranged adjacent to the third guide pin; and the light-emitting unit is arranged on the light-transmitting insulating block and is electrically connected with the third guide pin and the fourth guide pin.

Description

Technical Field

[0001] The present disclosure relates to an optical relay packaging device, particularly a stacked crystal type power controllable optical relay packaging device. Background Art

[0002] An optical relay can also be called a photo coupler, an optical coupler, an optical isolator, and an optoelectronic isolator, which is a device that transmits electrical signals through light such as visible light or infrared light. The optical relay has the characteristic of electrical isolation between the input circuit and the output circuit.

[0003] In the existing optical relay, two conductive pins are arranged vertically up and down, the light emitting unit is arranged on one of the conductive pins, and the optotriac is arranged on the other conductive pin. The encapsulation steps are to first encapsulate with white glue with a transmittance of about 20%, and then externally coat with opaque black glue. That is to say, secondary plastic encapsulation is required during encapsulation, the complexity of the process is high, and the transmittance of the white glue is not good, resulting in a higher driving current for the light emitting unit and sufficient brightness to drive the optotriac.

[0004] In view of this, how to simplify the encapsulation process and improve the energy conversion rate between the light emitting unit and the optotriac is one of the problems that need to be solved urgently at present. Summary of the Utility Model

[0005] The present disclosure provides a stacked crystal type power controllable optical relay packaging device, which can complete the encapsulation through one-time plastic encapsulation, effectively simplifies the complexity of the process, and improves the energy conversion rate between the light emitting unit and the optotriac. Therefore, the driving power supply of the light emitting unit can be reduced and power can be saved.

[0006] The present disclosure provides a stacked crystal type power controllable optical relay packaging device including a first lead; an insulating block is arranged on the first lead; an optotriac is arranged on the insulating block and is electrically connected to the first lead; a light-transmitting insulating block is arranged on the optotriac; a second lead is adjacent to the first lead; a power triac is arranged on the first lead and is electrically connected to the first lead, the second lead, and the optotriac; a third lead is adjacent to the second lead; a fourth lead is adjacent to the third lead; and a light emitting unit is arranged on the light-transmitting insulating block and is electrically connected to the third lead and the fourth lead.

[0007] In some embodiments, the light-transmitting insulating block is clamped between the optotriac and the light emitting unit.

[0008] In some embodiments, the transmittance of the light-transmitting insulating block is about 90%.

[0009] In some embodiments, the light-emitting unit emits light, the light passes through the light-transmissive insulating block, and the opto-triac receives the light and generates a first electrical signal.

[0010] In some embodiments, the power triac receives the first electrical signal and generates a second electrical signal.

[0011] In some embodiments, the light-emitting unit is a light-emitting diode.

[0012] In some embodiments, the stacked power controllable optical relay package further includes a first wire electrically connected to the first lead and the opto-triac; and a second wire, electrically connected to the power triac and the opto-triac.

[0013] In some embodiments, the stacked power controllable optical relay package further includes a third wire electrically connected to the second lead and the power triac; a fourth wire, electrically connected to the second lead and the power triac; a fifth wire, electrically connected to the second lead and the power triac; and a sixth wire, electrically connected to the second lead and the power triac.

[0014] In some embodiments, the stacked power controllable optical relay package further includes a seventh wire electrically connected to the third lead and the light-emitting unit; and an eighth wire, electrically connected to the fourth lead and the light-emitting unit.

[0015] In some embodiments, the stacked power controllable optical relay package further includes a fifth lead adjacent to the fourth lead; and a sixth lead, adjacent to the fifth lead.

[0016] In some embodiments, the stacked power controllable optical relay package further includes a packaging colloid covering a part of the first lead, a part of the second lead, a part of the third lead, a part of the fourth lead, the insulating block, the opto-triac, the light-transmissive insulating block, the light-emitting unit, and the power triac.

[0017] In some embodiments, the stacked power controllable optical relay package further includes a packaging colloid covering a part of the first lead, a part of the second lead, a part of the third lead, a part of the fourth lead, a part of the fifth lead, a part of the sixth lead, the insulating block, the opto-triac, the light-transmissive insulating block, the light-emitting unit, the power triac, the first wire, the second wire, the third wire, the fourth wire, the fifth wire, the sixth wire, the seventh wire, and the eighth wire.

[0018] As described above, the stacked crystal type power controllable optical relay packaging device of the present disclosure converts an input electrical signal source into an optical signal and then into an electrical signal, while maintaining electrical isolation, thus having good electrical insulation ability and anti-interference ability. Adding the stacked crystal type power controllable optical relay packaging device of the present disclosure to a circuit can prevent the subsequent circuit components from being damaged by imperfect input electrical signal sources, lightning, electrostatic discharge, electromagnetic interference, and switching pulses. Moreover, the stacked crystal type power controllable optical relay packaging device 1 of the present disclosure is different from the existing optical relay devices. It can be encapsulated through a single plastic encapsulation, effectively simplifying the complexity of the manufacturing process. Also, the light transmittance of the light-transmitting insulating block is about 90%, which can improve the light transmission effect. Therefore, the driving power of the light-emitting unit can be reduced, saving electricity. It is worth mentioning that the first lead can support the optotriac through the insulating block, and the insulating block can prevent the bottom of the optoelectronic component from being electrically connected to the bottom of the first lead and the power triac die. Therefore, the optotriac does not need to be arranged on other support structures. In addition, the power triac has the function of controlling a large current with a small current or controlling a large voltage with a small voltage, achieving the purpose of high-power output. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Details of one or more embodiments of the subject matter described in this specification are set forth in the following drawings and description. Other features, aspects, and advantages of the subject matter of this specification will become apparent from the description, drawings, and claims, where:

[0020] Figure 1 is a schematic upper cross-sectional view of the stacked crystal type power controllable optical relay packaging device of the present disclosure;

[0021] Figure 2 is a schematic side cross-sectional view of the stacked crystal type power controllable optical relay packaging device of the present disclosure. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The detailed description and technical content of the present disclosure are described below in conjunction with the drawings. However, the attached drawings are only for reference and illustration purposes and are not intended to limit the present disclosure.

[0023] As used herein, terms such as "first", "second", "third", "fourth", "fifth", "sixth", "seventh", and "eighth" describe various components, components, regions, layers, and / or parts. These components, components, regions, layers, and / or parts should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer, or part from another. Unless the context clearly indicates otherwise, terms such as "first", "second", "third", "fourth", "fifth", "sixth", "seventh", and "eighth" used herein do not imply order or sequence.

[0024] Figure 1 This is a schematic upper cross-sectional view of the stacked power controllable optical relay packaging device of the present disclosure. Figure 2 This is a schematic side cross-sectional view of the stacked power controllable optical relay packaging device of the present disclosure. Please refer to Figure 1 and Figure 2 As shown, the stacked power controllable optical relay packaging device 1 of this embodiment includes a first lead 21, an insulating block 31, an optotriac 32, a light-transmitting insulating block 33, a second lead 22, a power triac 40, a third lead 23, a fourth lead 24, and a light-emitting unit 34.

[0025] The material of the first lead 21 can be, for example, a conductive material such as silver, copper, gold, or aluminum. The first lead 21 can support other components and enable the stacked power controllable optical relay packaging device 1 to be electrically connected to an external circuit.

[0026] The insulating block 31 is disposed on the first lead 21. The insulating block 31 can be, for example, located between other components and the first lead 21 to support other components and electrically isolate other components from the first lead 21. The material of the insulating block 31 can be, for example, a non-conductive material such as rubber, plastic, or insulating glue.

[0027] The optotriac 32 is disposed on the insulating block 31 and is electrically connected to the first lead 21. Therefore, the optotriac 32 and the first lead 21 can be electrically isolated. The optotriac 32, also known as an optically controlled silicon, is a semiconductor component that combines the functions of a triode AC semiconductor switch and the characteristics of a photosensitive component. The structure of the optotriac 32 is similar to that of a general triode AC semiconductor switch, but it has an additional photosensitive junction.

[0028] The light-transmitting insulating block 33 is disposed on the optotriac 32. In some embodiments, the light-transmitting insulating block 33 can be sandwiched between the optotriac 32 and the light-emitting unit 34 as a medium for light conduction and electrically isolate the optotriac 32 from the light-emitting unit 34. The material of the light-transmitting insulating block 33 can be, for example, a light-transmitting and insulating material such as an acrylic plate, glass, polycarbonate, resin, or plastic. In some embodiments, the light transmittance of the light-transmitting insulating block 33 can be about 90%. In other words, the light penetration rate through the light-transmitting insulating block 33 is 90%.

[0029] The second lead 22 is adjacent to the first lead 21. The material of the second lead 22 can be, for example, a conductive material such as silver, copper, gold, or aluminum. The second lead 22 can enable the stacked power controllable optical relay packaging device 1 to be electrically connected to an external circuit.

[0030] The power triac 40 is disposed on the first lead 21 and is electrically connected to the first lead 21, the second lead 22, and the optical triac 32. The power triac 40 can be electrically connected to the first lead 21, the second lead 22, and the optical triac 32 through direct contact, conductive adhesive, wire, or solder. The first lead 21 can support the power triac 40 and lead out the electrical signal of the power triac 40. The power triac 40, also known as a power thyristor, is a full-wave semiconductor component, which can be regarded as two silicon controlled rectifiers (SCRs) connected in parallel in opposite directions.

[0031] The third lead 23 is adjacent to the second lead 22; the fourth lead 24 is adjacent to the third lead 23. The materials of the third lead 23 and the fourth lead 24 can be conductive materials such as silver, copper, gold, aluminum, etc., so that the stacked power controllable optical relay packaging device 1 can be electrically connected to an external circuit.

[0032] The light-emitting unit 34 is disposed on the light-transmitting insulating block 33 and is electrically connected to the third lead 23 and the fourth lead 24. The light-transmitting insulating block 33 can transmit the light emitted by the light-emitting unit 34. When appropriate input electrical signal sources are connected to the third lead 23 and the fourth lead 24, the input electrical signal sources cause the light emitted by the light-emitting unit 34 to change. The light-emitting unit 34 can be a light-emitting diode, a light bulb, or a fluorescent tube.

[0033] In some embodiments, the light-emitting unit 34 is a light-emitting diode, such as a red light-emitting diode, a yellow light-emitting diode, a green light-emitting diode, a blue light-emitting diode, a purple light-emitting diode, an infrared light-emitting diode, or a ultraviolet light diode, but it is not limited thereto. The light-emitting diode can be an inorganic light-emitting diode or an organic light-emitting diode (OLED), but it is not limited thereto.

[0034] In some embodiments, the stacked power controllable optical relay packaging device 1 may further include a first wire 51, a second wire 52, a third wire 53, a fourth wire 54, a fifth wire 55, a sixth wire 56, a seventh wire 57, an eighth wire 58, a fifth lead 25, a sixth lead 26, and a packaging colloid 60.

[0035] The first wire 51 can be electrically connected to, for example, the first lead 21 and an electrode of the opto - triac 32; the second wire 52 can be electrically connected to, for example, an electrode of the power triac 40 and the other electrode of the opto - triac 32. The third wire 53, the fourth wire 54, the fifth wire 55 and the sixth wire 56 can be electrically connected to, for example, the second lead 22 and the other electrode of the power triac 40. The seventh wire 57 can be electrically connected to, for example, the third lead 23 and an electrode of the light - emitting unit 34; the eighth wire 58 can be electrically connected to, for example, the fourth lead 24 and the other electrode of the light - emitting unit 34. The materials of the first wire 51, the second wire 52, the third wire 53, the fourth wire 54, the fifth wire 55, the sixth wire 56, the seventh wire 57 and the eighth wire 58 can be conductive materials such as silver, copper, gold, aluminum, etc.

[0036] The fifth lead 25 can be disposed adjacent to the fourth lead 24; the sixth lead 26 can be disposed adjacent to the fifth lead 25. The materials of the fifth lead 25 and the sixth lead 26 can be conductive materials such as silver, copper, gold, aluminum, etc. The fifth lead 25 and the sixth lead 26 can serve as spare leads of the stacked - die power - controllable optical relay packaging device 1.

[0037] In some embodiments, the encapsulation colloid 60 can cover a part of the first lead 21, a part of the second lead 22, a part of the third lead 23, a part of the fourth lead 24, a part of the fifth lead 25, a part of the sixth lead 26, the insulating block 31, the opto - triac 32, the light - transmissive insulating block 33, the light - emitting unit 34, the power triac 40, the first wire 51, the second wire 52, the third wire 53, the fourth wire 54, the fifth wire 55, the sixth wire 56, the seventh wire 57 and the eighth wire 58. The encapsulation colloid 60 can be, for example, epoxy resin or hot melt adhesive. The encapsulation colloid 60 can protect the internal electronic components from being damaged by mechanical force, corrosive substances, oxygen, moisture or electricity. The encapsulation colloid 60 only covers a part of the first lead 21, a part of the second lead 22, a part of the third lead 23, a part of the fourth lead 24, a part of the fifth lead 25 and a part of the sixth lead 26, so the other parts of the first lead 21, the second lead 22, the third lead 23, the fourth lead 24, the fifth lead 25 and the sixth lead 26 can be used as pins for connecting to the external circuit.

[0038] Therefore, when the third lead 23 and the fourth lead 24 of the stacked power controllable optical relay package device 1 are connected to an input electrical signal source, the light emitting unit 34 can emit light, the light can pass through the light transmissive insulating block 33, and the opto-triac 32 can receive the light and generate a first electrical signal. In other words, the input electrical signal source causes the light emitted by the light emitting unit 34 to change, and the change in the light causes the opto-triac 32 to generate a first electrical signal. The first electrical signal can be, for example, a voltage signal or a current signal. The power triac 40 can receive the first electrical signal and generate a second electrical signal. The second electrical signal can be, for example, a voltage signal or a current signal. The magnitude of the second electrical signal can be greater than, less than, or equal to the first electrical signal. The stacked power controllable optical relay package device 1 can output an electrical signal through the first lead 21 and the second lead 22, for example, thereby achieving the function of a relay.

[0039] In summary, the stacked power controllable optical relay package device of the present disclosure converts an input electrical signal source into an optical signal and then into an electrical signal, and maintains electrical isolation, thus having good electrical insulation ability and anti-interference ability. Adding the stacked power controllable optical relay package device of the present disclosure to a circuit can prevent the backend circuit components from being damaged by imperfect input electrical signal sources, lightning, electrostatic discharge, electromagnetic interference, and switching pulses. Furthermore, the stacked power controllable optical relay package device 1 of the present disclosure is different from existing optical relay devices in that it can be encapsulated through a single plastic encapsulation, effectively simplifying the process complexity. Moreover, the light transmissivity of the light transmissive insulating block is about 90%, which can improve the light transmission effect, so the driving power of the light emitting unit can be reduced, saving power. It is worth mentioning that the first lead can support the opto-triac through the insulating block, and the insulating block can prevent the bottom of the opto-electronic component from being electrically connected to the bottom of the first lead and the power triac die, so the opto-triac does not need to be disposed on other support structures. In addition, the power triac has the function of controlling a large current with a small current or controlling a large voltage with a small voltage, achieving the purpose of high power output.

[0040] As used herein and unless otherwise defined, terms such as "substantially" and "about" are used to describe and account for small variations. When associated with an event or circumstance, the term can encompass both the exact instance in which the event or circumstance occurs and an approximate point approaching the event or circumstance. For example, when associated with a numerical value, the term can encompass a range of variation less than or equal to ±10% of the numerical value, such as less than or equal to ±5%, less than or equal to ±4%, less than or equal to ±3%, less than or equal to ±2%, less than or equal to ±1%, less than or equal to ±0.5%, less than or equal to ±0.1%, or less than or equal to ±0.05%.

[0041] The components of several embodiments are outlined above, enabling those with ordinary knowledge in the technical field to which this disclosure pertains to better understand the concepts of the embodiments of this disclosure. Those with ordinary knowledge in the technical field to which this disclosure pertains should understand that the embodiments of this disclosure can be used as a basis to design or modify other processes and devices to achieve the same purposes and / or obtain the same benefits as the embodiments introduced herein. Those with ordinary knowledge in the technical field to which this disclosure pertains should also understand that these equivalent devices do not depart from the spirit and scope of this disclosure, and various changes, substitutions, and other options can be made without departing from the spirit and scope of this disclosure. Therefore, the scope of protection of this disclosure shall be defined by the appended patent application scope.

[0042]

Symbol Explanation

[0043] 1: Stacked Die Power Controllable Opto - Relay Package Device

[0044] 21: First Lead

[0045] 22: Second Lead

[0046] 23: Third Lead

[0047] 24: Fourth Lead

[0048] 25: Fifth Lead

[0049] 26: Sixth Lead

[0050] 31: Insulating Block

[0051] 32: Opto - Triac

[0052] 33: Translucent Insulating Block

[0053] 34: Light - Emitting Unit

[0054] 40: Power Triac

[0055] 51: First Conductor

[0056] 52: Second Conductor

[0057] 53: Third Conductor

[0058] 54: Fourth Conductor

[0059] 55: Fifth Conductor

[0060] 56: Sixth Conductor

[0061] 57: Seventh Conductor

[0062] 58: Eighth Conductor

[0063] 60: Encapsulation Colloid

Claims

1. A stacked crystal type power controllable optical relay packaging device, characterized in that, Comprising: A first lead foot; An insulating block disposed on the first lead foot; An opto - triac, disposed on the insulating block and electrically connected to the first lead foot; A light - transmissive insulating block disposed on the opto - triac; A second lead foot adjacent to the first lead foot; A power triac disposed on the first lead foot and electrically connected to the first lead foot, the second lead foot and the opto - triac; A third lead foot adjacent to the second lead foot; A fourth lead foot adjacent to the third lead foot; and A light - emitting unit disposed on the light - transmissive insulating block and electrically connected to the third lead foot and the fourth lead foot.

2. The stacked crystal type power controllable optical relay packaging device according to claim 1, wherein The light - transmissive insulating block is clamped between the opto - triac and the light - emitting unit.

3. The stacked crystal type power controllable optical relay packaging device according to claim 1, characterized in that A light transmittance of the light - transmissive insulating block is about 90%.

4. The stacked crystal type power controllable optical relay packaging device according to claim 1, characterized in that, The light - emitting unit is a light - emitting diode.

5. The stacked crystal type power controllable optical relay packaging device according to claim 1, characterized in that, Further comprising: A first wire electrically connected to the first lead foot and the opto - triac; And A second wire electrically connected to the power triac and the opto - triac.

6. The stacked crystal type power controllable optical relay packaging device according to claim 5, wherein, Further comprising: A third wire electrically connected to the second lead foot and the power triac; A fourth wire electrically connected to the second lead foot and the power triac; A fifth wire electrically connected to the second lead foot and the power triac; and A sixth wire electrically connected to the second lead foot and the power triac.

7. The stacked crystal type power controllable optical relay packaging device according to claim 6, characterized in that, Further comprising: A seventh wire electrically connected to the third lead foot and the light - emitting unit; And An eighth wire electrically connected to the fourth lead foot and the light - emitting unit.

8. The stacked crystal type power controllable optical relay packaging device according to claim 7, characterized in that, Further comprising: A fifth lead foot adjacent to the fourth lead foot; And A sixth lead foot adjacent to the fifth lead foot.

9. The stacked crystal type power controllable optical relay packaging device according to claim 1, characterized in that, Further comprising: A packaging colloid covering a part of the first lead foot, a part of the second lead foot, a part of the third lead foot, a part of the fourth lead foot, the insulating block, the opto - triac, the light - transmissive insulating block, the light - emitting unit and the power triac.

10. The stacked crystal type power controllable optical relay packaging device according to claim 8, characterized in that, Further comprising: A packaging colloid covering a part of the first lead foot, a part of the second lead foot, a part of the third lead foot, a part of the fourth lead foot, a part of the fifth lead foot, a part of the sixth lead foot, the insulating block, the opto - triac, the light - transmissive insulating block, the light - emitting unit, the power triac, the first wire, the second wire, the third wire, the fourth wire, the fifth wire, the sixth wire, the seventh wire and the eighth wire.

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