Laser aging device

Abstract

The utility model discloses a laser aging device, which comprises a base, a plurality of aging devices, a plurality of delay circuit control circuits and a power supply circuit, wherein the aging devices, the delay circuit control circuits and the power supply circuit are arranged on the base; the aging device comprises a relay, an indicating lamp circuit, a socket circuit and a plurality of uniformly distributed lasers, the relay is electrically connected with the plurality of lasers, and the socket circuit is electrically connected with the relay; the time delay circuit is electrically connected with the aging device, the power supply circuit comprises a control circuit power supply circuit and a laser power supply circuit, the control circuit power supply circuit is electrically connected with the time delay circuit, and the laser power supply circuit is electrically connected with the aging device. Comprising a time relay KT, a time relay KT1 and a time relay KT2, the time relay KT is electrically connected with the time relay KT1, the time relay KT2 is electrically connected, and the time relay KT1 is electrically connected with the time relay KT2; and the time relay KT1 is connected with the time relay.

Description

Technical Field

[0001] The utility model relates to the technical field of lasers, and more specifically, to a laser aging device. Background Art

[0002] In the production of the laser industry, laser aging is a very important and essential step. The aging data directly affects the performance and quality of the product. Usually, before the laser is put into use, it needs to be aged and screened to intercept the lasers with early failures, so that the actually put-into-use lasers work in the random failure section of the bathtub failure curve, thereby reducing the failure rate of the lasers during their normal service life.

[0003] The publication number is CN108168844A, and the name is a laser aging device and an aging method. The laser aging device includes a cavity and a high lens. The cavity is a closed structure with a light inlet; the high lens is arranged in the cavity and divides the cavity into an incident cavity and an absorption cavity; the light inlet is located at one end of the incident cavity away from the high lens, so that when the output head of the laser is fixed at the light outlet, the laser beam emitted by the laser will pass through the incident cavity, pass through the high lens and enter the absorption cavity to be absorbed and converted into heat; a fluid channel is opened on the side wall of the cavity, and the fluid channel has a water inlet and a water outlet, so that cooling water can flow through the fluid channel through the water inlet and the water outlet, thereby taking away the heat to cool the cavity and avoiding damage to the equipment due to excessive temperature during the aging process.

[0004] The publication number is CN115542054A, and the name is a laser aging test device, which relates to the technical field of semiconductors. A plurality of semiconductor lasers are arranged on the mounting member. After connecting the mounting member with the first driving assembly, a plurality of semiconductor lasers can be loaded at one time, and under the drive of the first driving assembly and the second driving assembly, a plurality of semiconductor lasers can be automatically driven to move to a preset position to perform batch power-on and power-off on the plurality of semiconductor lasers. After the aging is completed, the first driving assembly can drive the plurality of semiconductor lasers to return to the initial position in batches for unloading. The laser aging test device can perform loading, power-on, power-off and unloading in batches, and can complete the aging test of semiconductor lasers in batches, and the movement of the semiconductor lasers to the preset position can be carried out automatically. The above factors can all improve the efficiency of the aging test of semiconductor lasers.

[0005] Therefore, how to provide an aging device that can simulate long-term and frequent start-stop during the product use process is an urgent problem to be solved by those skilled in the art. Summary of the Utility Model

[0006] In view of this, the utility model provides a laser aging device, aiming to solve the above technical problems.

[0007] To achieve the above object, the utility model adopts the following technical solutions:

[0008] A laser aging device, comprising: a base and a plurality of aging devices, a plurality of delay circuit control circuits and a power supply circuit mounted on the base;

[0009] The aging device includes a relay, an indicator light circuit, a socket circuit and at least one laser evenly distributed, the relay is electrically connected to the laser, and the socket circuit is electrically connected to the relay;

[0010] The delay circuit control circuit is electrically connected to the aging device, the power supply circuit includes a control circuit power supply circuit and a laser power supply circuit, the control circuit power supply circuit is electrically connected to the delay circuit, and the laser power supply circuit is electrically connected to the aging device;

[0011] The delay circuit control circuit includes a time relay KT, a time relay KT1 and a time relay KT2, the time relay KT is electrically connected to the time relay KT1 and the time relay KT2, and the time relay KT1 is electrically connected to the time relay KT2.

[0012] Further, the top cover covers the laser, and a refrigeration and heat dissipation circuit is further provided in the space formed by the top cover and the base, and the refrigeration and heat dissipation circuit includes a refrigeration sheet TEC-1 and a refrigeration sheet TEC-3.

[0013] Further, the delay circuit control circuit specifically includes:

[0014] A time relay KT, a time relay KT1 and a time relay KT2. The VCC terminal of the time relay KT is connected to the power supply, the GND terminal is grounded, the NC terminal is left open, the COM terminal is connected to the NC terminal of the time relay KT1, the NO terminal is connected to the VCC terminal of the time relay KT2, the VCC terminal of the time relay KT1 is connected to the NC terminal of the time relay KT2, the GND terminal is grounded, the COM terminal is connected to the power supply, the NO terminal is connected to the 24V power supply, the GND terminal of the time relay KT2 is grounded, the COM terminal is connected to the power supply, and the NO terminal is connected to the 24V power supply.

[0015] Further, the aging device includes a first aging board and a second aging board;

[0016] The first aging board includes multiple lasers LD+, a first relay circuit, a first indicator light circuit, and an interface P1. One end of the laser LD+ is grounded, and the other end is connected to the first relay circuit. Pin 1 of the relay SRD1 is connected to the power supply, pin 2 is connected to some lasers, pin 3 is left unconnected, pin 4 is grounded, pin 5 is connected to the power supply. Pin 1 of the relay SRD2 is connected to the power supply, pin 2 is connected to another part of the lasers LD+, pin 3 is left unconnected, pin 4 is grounded, pin 5 is connected to the power supply. The positive pole of the light-emitting diode D1 in the indicator light circuit is connected to the power supply through the resistor R1, and the negative pole is grounded. Pin 1 of the interface P1 is connected to the 24V power supply, pin 2 is connected to the power supply, pin 3 is connected to the negative pole of the laser, and pin 4 is grounded;

[0017] The second aging board includes multiple lasers LD+1, a second relay circuit, a second indicator light circuit, and an interface P2. One end of the laser LD+1 is grounded, and the other end is connected to the second relay circuit. Pin 1 of the relay SRD3 is connected to the power supply, pin 2 is connected to some lasers, pin 3 is left unconnected, pin 4 is grounded, pin 5 is connected to the power supply. Pin 1 of the relay SRD4 is connected to the power supply, pin 2 is connected to another part of the lasers LD+1, pin 3 is left unconnected, pin 4 is grounded, pin 5 is connected to the power supply. The positive pole of the light-emitting diode D2 in the indicator light circuit is connected to the power supply through the resistor R2, and the negative pole is grounded. Pin 1 of the interface P2 is connected to the 24V power supply, pin 2 is connected to the power supply, pin 3 is connected to the negative pole of the laser LD+1, and pin 4 is grounded.

[0018] Further, pin 1 of the thermoelectric cooler TEC-1 is connected to the 24V power supply, and pin 2 is grounded. Pin 1 of the thermoelectric cooler TEC-2 is connected to the 24V power supply, and pin 2 is grounded.

[0019] The above technical solution at least includes the following technical effects:

[0020] As can be seen from the above technical solution, the present utility model discloses a laser aging device. Compared with the prior art, the present utility model can adjust the pulse time and perform aging with two-way high and low level complementary cyclic alternation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0022] Figure 1 It is a schematic circuit structure diagram of an aging board 1 of the present utility model.

[0023] Figure 2 This is a schematic diagram of the circuit structure of an aging board 2 of the present utility model.

[0024] Figure 3 This is a schematic diagram of the circuit structure of the time-delay circuit control part of the present utility model.

[0025] Figure 4 This is a schematic diagram of the regulated and adjustable power supply circuit structure of the LD power supply part of the present utility model.

[0026] Figure 5 This is a schematic diagram of the LD interface circuit structure of the LD power supply part of the present utility model.

[0027] Figure 6 This is a schematic diagram of the circuit structure of the power supply part of the control circuit of the present utility model.

[0028] Figure 7 This is a schematic diagram of the circuit structure of the refrigeration and heat dissipation part of the present utility model.

[0029] Figure 8 This is a schematic diagram of the overall structure of a laser aging device of the present utility model.

[0030] Figure 9 This is a schematic diagram of the structure of the aging board of a laser aging device of the present utility model. Detailed implementation manners

[0031] The technical solutions in the embodiments of the present utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0032] Refer to the attached Figures 1-9 , such as Figure 8 shown, an embodiment of the present utility model discloses a laser aging device, including: a base and three time-delay circuit control parts, two aging boards, a control circuit power supply part, an LD power supply part, and a refrigeration and heat dissipation part that are evenly installed on the base.

[0033] Such as Figure 3As shown in the figure, the delay circuit control part includes time relays KT, KT1, and KT2. The VCC terminal of time relay KT is connected to the power supply, the GND terminal is grounded, the NC terminal is left unconnected, the COM terminal is connected to the NC terminal of time relay KT1, the NO terminal is connected to the VCC terminal of time relay KT2, the VCC terminal of time relay KT1 is connected to the NC terminal of time relay KT2, the GND terminal is grounded, the COM terminal is connected to the power supply, the NO terminal is connected to the 24V power supply, the GND terminal of time relay KT2 is grounded, the COM terminal is connected to the power supply, and the NO terminal is connected to the 24V power supply;

[0034] As Figure 9 shown, the first aging board includes multiple lasers, a relay circuit, an indicator light circuit, and interface P1. As Figure 1 shown, one end of the laser is grounded, and the other end is connected to the relay circuit. Pin 1 of relay SRD1 is connected to the power supply, pin 2 is connected to some lasers, pin 3 is left unconnected, pin 4 is grounded, pin 5 is connected to the power supply. Pin 1 of relay SRD2 is connected to the power supply, pin 2 is connected to another part of the lasers, pin 3 is left unconnected, pin 4 is grounded, pin 5 is connected to the power supply. The positive pole of light-emitting diode D1 in the indicator light circuit is connected to the power supply through resistor R1, and the negative pole is grounded. The resistance of resistor R1 is 10K ohms. Pin 1 of interface P1 is connected to the 24V power supply, pin 2 is connected to the power supply, pin 3 is connected to the negative pole of the laser, and pin 4 is grounded;

[0035] The second aging board includes multiple lasers, a relay circuit, an indicator light circuit, and interface P2. As Figure 2 shown, one end of the laser is grounded, and the other end is connected to the relay circuit. Pin 1 of relay SRD3 is connected to the power supply, pin 2 is connected to some lasers, pin 3 is left unconnected, pin 4 is grounded, pin 5 is connected to the power supply. Pin 1 of relay SRD4 is connected to the power supply, pin 2 is connected to another part of the lasers, pin 3 is left unconnected, pin 4 is grounded, pin 5 is connected to the power supply. The positive pole of light-emitting diode D2 in the indicator light circuit is connected to the power supply through resistor R2, and the negative pole is grounded. The resistance of resistor R2 is 10K ohms. Pin 1 of interface P2 is connected to the 24V power supply, pin 2 is connected to the power supply, pin 3 is connected to the negative pole of the laser, and pin 4 is grounded;

[0036] As Figure 6 shown, for the AC-DC module in the control circuit power supply part, its L and N pins are connected to the 220v mains through a plug.

[0037] As Figure 4 shown, for the regulated adjustable power supply in the LD power supply part, its L and N pins are connected to the 220v mains through a plug.

[0038] As Figure 5 shown, pin 1 of interface P3 in the LD power supply part is connected to the power supply, and pin 2 is grounded.

[0039] like Figure 7 As shown, the cooling and heat dissipation part includes a cooling plate TEC-1 and a cooling plate TEC-2. Pin 1 of the cooling plate TEC-1 is connected to a 24V power supply, and pin 2 is grounded. Pin 1 of the cooling plate TEC-2 is connected to a 24V power supply, and pin 2 is grounded.

[0040] Working principle: The LD voltage-regulated adjustable power supply is powered on and started. At the same time, it is connected to the P3 interface through the high-temperature aging line. The P3 interface is connected to the P1 interface of aging board 1 and the P2 interface of aging board 2 through the connecting line. LD- is always connected to the negative pole of all lasers, and VCC is connected to the normally open point of SRD1 to SRD4. After passing through the normally open point, it is connected to the positive pole of the laser.

[0041] KT1 controls the on-time of aging board 1, KT2 controls the on-time of aging board 2, and KT is an auxiliary delay relay to prevent KT1 and KT2 from operating simultaneously at the moment of power-on.

[0042] The switch power supply is started, and at the same time, the power supply end of the delayed pick-up relay module KT and the com common end of the delayed contacts of the delayed disconnection relay modules KT1 and KT2 are connected through the high-temperature aging line.

[0043] The time delay relay KT is energized and timing. KT is a time delay pick-up relay, that is, the coil is picked up after 1s delay after power-on. During this period, points A and B are not connected, so that KT2 is not energized, thereby preventing KT2 from being picked up when power is on.

[0044] When KT1 is energized and immediately energized, Kt1 is a delayed disconnect relay, V+ passes through the normally closed point of KT2 to point C, so that KT1 is energized, the coil is immediately energized, the normally open point is closed, the normally closed point is disconnected, A and V+ are disconnected, ensuring that KT2 is in a stopped state during the operation of KT1, V+ is connected to 24V+, so that the relays SRD1 and SRD2 in the aging board 1 are energized, the operation indicator LED0 lights up, and VCC is connected to LD+ to make the aging board 1 laser work, and the TEC-1 refrigeration block works to dissipate heat.

[0045] When the KT1 set time is up, the KT1 coil is disconnected, the KT1 normally open contact is reset and disconnected, V+ and 24V+ are disconnected, the aging board 1 running indicator light goes out, the SRD1 and SRD2 coils are disconnected, VCC and LD+ are disconnected, the aging of the aging board 1 is completed within one cycle, and the TEC-1 refrigeration block stops working.

[0046] Meanwhile, the normally closed contact of KT1 resets and closes, V+ is connected, A is connected through the normally open contact of KT, and B is connected. At this time, the suction cycle of KT1 must exceed 1 s. KT has already been suctioned and its normally open contact is closed. The power supply terminal of KT2 is energized, the coil of KT2 is suctioned and timed. Kt2 is a time-delay off relay, and its normally open contact is closed. V+ is connected to +24V through the normally open contact of KT2, and the normally closed contact is opened. V+ is disconnected from C, ensuring that during the operation of KT2, KT1 is in a stopped state, causing the relays SRD3 and SRD4 in the aging board 2 to be suctioned and the operation indicator LED1 to light up. At the same time, VCC is connected to LD+1 and the laser in the aging board 2 works, and the TEC-2 refrigeration block works for heat dissipation.

[0047] When the set time of KT2 arrives, the coil of KT2 is disconnected, the normally open contact of KT2 resets and opens, V+ and +24V are disconnected, the operation indicator of the aging board 2 goes out, the coils of SRD3 and SRD4 are disconnected, VCC is disconnected from LD+1, and the aging of the aging board 2 ends within one cycle. At the same time, the TEC-2 refrigeration block stops working.

[0048] Meanwhile, the normally closed contact of KT2 resets and closes V+, C is connected, KT1 is energized again to start timing, and the second aging cycle begins.

[0049] This process repeats continuously to achieve cyclic and alternating aging.

[0050] In this specification, each embodiment is described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. For the same or similar parts among the embodiments, reference can be made to each other.

[0051] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A laser aging device, characterized in that, Including: A base and a plurality of aging devices, a plurality of delay circuit control circuits and a power supply circuit mounted on the base; The aging device includes a relay, an indicator light circuit, a socket circuit and at least one laser uniformly distributed. The relay is electrically connected to the laser, and the socket circuit is electrically connected to the relay; The delay circuit control circuit is electrically connected to the aging device. The power supply circuit includes a control circuit power supply circuit and a laser power supply circuit. The control circuit power supply circuit is electrically connected to the delay circuit, and the laser power supply circuit is electrically connected to the aging device; The delay circuit control circuit includes a time relay KT, a time relay KT1 and a time relay KT2. The time relay KT is electrically connected to the time relay KT1 and the time relay KT2. The time relay KT1 is electrically connected to the time relay KT2.

2. The laser aging device according to claim 1, wherein The aging device further includes a top cover. The top cover covers the laser. A refrigeration and heat dissipation circuit is also provided in the space formed by the top cover and the base. The refrigeration and heat dissipation circuit includes a thermoelectric cooler TEC-1 and a thermoelectric cooler TEC-3.

3. The laser aging device according to claim 1, wherein The delay circuit control circuit is specifically: The VCC terminal of the time relay KT is connected to the power supply, the GND terminal is grounded, the NC terminal is left open, the COM terminal is connected to the NC terminal of the time relay KT1, the NO terminal is connected to the VCC terminal of the time relay KT2, the VCC terminal of the time relay KT1 is connected to the NC terminal of the time relay KT2, the GND terminal is grounded, the COM terminal is connected to the power supply, the NO terminal is connected to the 24V power supply, the GND terminal of the time relay KT2 is grounded, the COM terminal is connected to the power supply, and the NO terminal is connected to the 24V power supply.

4. A laser aging device according to claim 1, characterized in that, The aging device includes a first aging board and a second aging board; The first aging board includes a plurality of lasers LD+, a first relay circuit, a first indicator light circuit and an interface P1. One end of the laser LD+ is grounded, and the other end is connected to the first relay circuit. The pin 1 of the relay SRD1 is connected to the power supply, the pin 2 is connected to part of the lasers, the pin 3 is left open, the pin 4 is grounded, the pin 5 is connected to the power supply. The pin 1 of the relay SRD2 is connected to the power supply, the pin 2 is connected to another part of the lasers LD+, the pin 3 is left open, the pin 4 is grounded, the pin 5 is connected to the power supply. The positive electrode of the light-emitting diode D1 in the indicator light circuit is connected to the power supply through the resistor R1, and the negative electrode is grounded. The pin 1 of the interface P1 is connected to the 24V power supply, the pin 2 is connected to the power supply, the pin 3 is connected to the negative electrode of the laser, and the pin 4 is grounded; The second aging board includes a plurality of lasers LD+1, a second relay circuit, a second indicator circuit, and an interface P2. One end of the laser LD+1 is grounded, and the other end is connected to the second relay circuit. Pin 1 of the relay SRD3 is connected to the power supply, pin 2 is connected to some of the lasers, pin 3 is left open, pin 4 is grounded, and pin 5 is connected to the power supply. Pin 1 of the relay SRD4 is connected to the power supply, pin 2 is connected to another part of the laser LD+1, pin 3 is left open, pin 4 is grounded, and pin 5 is connected to the power supply. The positive electrode of the light-emitting diode D2 in the indicator circuit is connected to the power supply through the resistor R2, and the negative electrode is grounded. Pin 1 of the interface P2 is connected to the 24V power supply, pin 2 is connected to the power supply, pin 3 is connected to the negative electrode of the laser LD+1, and pin 4 is grounded.

5. The laser aging device according to claim 2, characterized in that, Pin 1 of the thermoelectric cooler TEC-1 is connected to the 24V power supply, and pin 2 is grounded. Pin 1 of the thermoelectric cooler TEC-2 is connected to the 24V power supply, and pin 2 is grounded.

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