A stable operating laser circuit board

By converting the electrical signal into a low-frequency driver to propel the coolant flow using a low-pass filter, and combining this with water-cooling and air-cooling methods, the problems of vibration and electromagnetic interference in the cooling device were solved, achieving stable operation and efficient heat dissipation of the laser circuit board.

CN224329064UActive Publication Date: 2026-06-05SHANXI ZHONGKE HUAYEE TECH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANXI ZHONGKE HUAYEE TECH
Filing Date
2025-05-12
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

The cooling devices of existing laser circuit boards generate vibrations and electromagnetic interference when powered on, such as motors or water pumps, which affect the stability of the laser circuit board and the reception of electrical signals.

Method used

A low-pass filter is used to convert the electrical signal into a low-frequency signal. The low-frequency signal is generated by the magnet and coil in the drive tank to drive the flow of coolant. The combination of water cooling and air cooling methods is used for heat dissipation, avoiding the use of a motor or water pump as a drive source.

Benefits of technology

It achieves efficient heat dissipation without affecting the stability of the laser circuit board, avoids vibration and electromagnetic interference, and ensures stable operation and good heat dissipation of the laser circuit board.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of laser circuit board, especially, relate to a stable operation's laser circuit board. A stable operation's laser circuit board, including laser circuit board ontology, still include: low pass filter, cooling device and drive arrangement, low pass filter fixedly arranged in the upper bottom surface of laser circuit board ontology, cooling device and drive arrangement fixedly arranged in the lower bottom surface of laser circuit board ontology, low pass filter is connected with line drive arrangement through signal, cooling device includes the water -cooling pipe that fills with coolant, and drive arrangement sets up on water -cooling pipe, drive arrangement is used to convert low frequency signal of low pass filter output into bass, and the coolant flow in water -cooling pipe is driven by bass. The utility model can carry out efficient heat dissipation to laser circuit board while not influencing the stability of laser circuit board.
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Description

Technical Field

[0001] This utility model belongs to the field of laser circuit board technology, and in particular relates to a laser circuit board that operates stably. Background Technology

[0002] A laser circuit board refers to the circuit part of a laser system, which is used to realize various functions of the laser. The laser circuit board plays a key role in the laser system, and heat dissipation is an important factor in ensuring the stable operation of the circuit board.

[0003] In existing technologies, a cooling device is often placed under the laser circuit board to dissipate heat.

[0004] However, regardless of whether it's water cooling or air cooling, the driving source for the cooling device is usually a motor or water pump. When a motor or water pump is powered on, it generates vibration. Since laser circuit boards require extremely high stability during use, this vibration interferes with the operation of the laser circuit board, affecting its stability. Furthermore, the corresponding magnetic field generated when the motor or water pump is powered on can also cause electromagnetic interference to the laser circuit board, affecting its ability to receive electrical signals and further amplifying the impact on its stability. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a stable laser circuit board that can efficiently dissipate heat from the laser circuit board without affecting its stability.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A stable laser circuit board includes a laser circuit board body, and further includes: a low-pass filter, a cooling device, and a driving device. The low-pass filter is fixedly disposed on the upper bottom surface of the laser circuit board body; the cooling device and the driving device are fixedly disposed on the lower bottom surface of the laser circuit board body. The low-pass filter is connected to the driving device via a signal; the cooling device includes a water-cooled pipe filled with coolant, and the driving device is disposed on the water-cooled pipe; the driving device is used to convert the low-frequency signal output by the low-pass filter into a low-frequency signal, and the low-frequency signal drives the coolant in the water-cooled pipe to flow.

[0008] Preferably, the drive device includes a drive tank, a first three-phase connector, and a second three-phase connector; the first three-phase connector includes an A terminal, a B terminal, and a C terminal, with the A and B terminals connected to one side of the drive tank and the C terminal connected to one end of the water-cooling pipe; the second three-phase connector includes a D terminal, an E terminal, and a F terminal, with the D and E terminals connected to the other side of the drive tank and the F terminal connected to the other end of the water-cooling pipe; one end of the signal line is connected to a low-pass filter, and the other end is connected to the drive tank.

[0009] Preferably, the drive tank is provided with a first diaphragm, a magnet and a coil, the coil is wrapped around the magnet and the first diaphragm is located at one end of the magnet; ends A and D are close to the first diaphragm, and ends B and E are far from the first diaphragm; the signal line is connected to the coil.

[0010] Preferably, a second diaphragm is also provided inside the drive tank. The first and second diaphragms are respectively located at both ends inside the drive tank. The magnet is located between the first and second diaphragms, with the B end and the E end close to the second diaphragm.

[0011] Preferably, a first check valve is provided at end A, a second check valve is provided at end B, a third check valve is provided at end D, and a fourth check valve is provided at end E.

[0012] Preferably, the first check valve and the fourth check valve have the same opening and closing state, and the second check valve and the third check valve have the same opening and closing state, while the first check valve and the second check valve have different opening and closing states.

[0013] Preferably, a plurality of lasers are disposed on the bottom surface of the laser circuit board body, and the cooling device further includes a plurality of water-cooling units disposed on water-cooling pipes, wherein the water-cooling units are located on the bottom surface of the circuit board body at positions corresponding to the lasers.

[0014] Preferably, the water-cooling unit includes a housing, a water-driven shaft, and a water-driven wheel. The water-driven shaft and the water-driven wheel are located inside the housing, and the water-driven wheel is fixedly mounted on the water-driven shaft.

[0015] Preferably, the cooling device further includes an air-cooled fan, a portion of the water-driven shaft is located inside the housing, and another portion of the water-driven shaft is located below the bottom surface of the housing. An air-cooled fan is fixedly installed on the water-driven shaft located below the bottom surface of the housing.

[0016] Preferably, the cooling device and the driving device are bonded to the bottom surface of the laser circuit board body by a silicone grease layer.

[0017] The beneficial effects of this utility model are as follows:

[0018] (1) The laser circuit board of this invention provides a stable operating system. It utilizes a low-pass filter to reuse the electrical signals received during the operation of the laser circuit board. Furthermore, a magnet with a coil inside the drive tank converts the electrical signals into high-amplitude bass signals, which are then used as the driving medium to power the flow of the coolant. Therefore, this invention fundamentally avoids using a motor or water pump as the driving source for the cooling device. This directly avoids the vibrations generated when the motor or water pump is powered on, and also avoids electromagnetic interference to the laser circuit board. In other words, this invention provides heat dissipation without adversely affecting the stability of the laser circuit board, ensuring its stable operation.

[0019] (2) The laser circuit board of this utility model is operated stably. It adopts a combination of water cooling and air cooling to dissipate heat and cool down the laser circuit board, which has a good heat dissipation and cooling effect.

[0020] (3) In the drive tank of this utility model, the bass is used as the driving medium. It directly acts on the first diaphragm and the second diaphragm to make a reciprocating motion relative to the magnet, so as to draw the coolant into or out of the drive tank and provide power for the coolant to circulate in the water-cooled pipe. During the flow of the coolant in the water-cooled pipe, it will drive the water wheel and water shaft in the casing to rotate. The rotation of the water wheel also provides power for the flow of coolant.

[0021] (4) Because the coolant can carry away the heat transferred from the laser circuit board components above the water cooling pipe in time during the circulation of the coolant in the water cooling pipe, the path of the water cooling pipe is set so that it is located below all the components of the laser circuit board that are prone to heat generation (especially the laser), so that the coolant can accelerate the dissipation of the heat carried in the coolant to the air outside the water cooling pipe during the circulation of the coolant in the water cooling pipe.

[0022] (5) During the rotation of the water shaft, the air-cooled fan is driven to rotate, which accelerates the airflow around the casing and cools the coolant in the casing through air cooling, further enhancing the ability of the coolant to remove the heat transferred from the laser and further promoting the heat dissipation and cooling of the laser. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the laser circuit board of this utility model from a first perspective;

[0024] Figure 2 This is a schematic diagram of the laser circuit board of this utility model from a second perspective.

[0025] Figure 3 for Figure 1 Exploded view from a specific perspective;

[0026] Figure 4 for Figure 2 A schematic diagram of the cooling and drive units from a visual perspective;

[0027] Figure 5 for Figure 3 Enlarged diagram of point α in the diagram;

[0028] Figure 6 for Figure 3 Enlarged schematic diagram at point β in the diagram;

[0029] Figure 7 This is a schematic diagram of the internal components of the drive tank;

[0030] The actual correspondence between the reference numerals and component names in this utility model is as follows:

[0031] 1. Laser circuit board body; 11. Laser;

[0032] 2. Low-pass filter;

[0033] 3. Cooling device;

[0034] 31. Water-cooled pipe; 32. Water-cooled unit; 321. Water shaft; 322. Water impeller; 323. Housing; 33. Air-cooled fan;

[0035] 4. Drive unit;

[0036] 41. Drive tank; 411. First diaphragm; 412. Second diaphragm; 413. Magnet; 414. Coil;

[0037] 42. First three-phase connector; 421. First check valve; 422. Second check valve;

[0038] 43. Second three-phase connector; 431. Third check valve; 432. Fourth check valve. Detailed Implementation

[0039] To make the technical solution of this utility model clearer and more explicit, the utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Solutions derived by those skilled in the art through equivalent substitution and conventional reasoning of the technical features of this utility model without creative effort all fall within the protection scope of this utility model.

[0040] like Figures 1-3 As shown, Figure 1 This is a schematic diagram of the first structure of a laser circuit board that is operating stably according to the present invention, with the viewpoint being from the upper left corner to the laser circuit board located in the lower right corner. Figure 2 This is a schematic diagram of a second structure of a laser circuit board for stable operation according to the present invention, with the viewpoint being from the upper right corner to the laser circuit board placed in the upper left corner; Figure 3 for Figure 1 An exploded view from a specific perspective.

[0041] This invention relates to a stable laser circuit board, comprising a laser circuit board body 1, a low-pass filter 2, a cooling device 3, and a driving device 4. The low-pass filter 2 is fixedly mounted on the upper surface of the laser circuit board body 1, while the cooling device 3 and the driving device 4 are fixedly mounted on the lower surface of the laser circuit board body 1. The low-pass filter 2 is connected to the driving device 4 via a signal line (not shown in the figure). The low-pass filter 2 filters the electrical signal to obtain a low-frequency signal, which is then transmitted to the driving device 4 via the signal line. The driving device 4 converts the low-frequency signal into a low-frequency driving medium with high-frequency amplitude. The cooling device 3 includes a water-cooled pipe 31 filled with coolant, and the driving device 4 is mounted on the water-cooled pipe 31. The driving device 4 uses the low-frequency driving medium to circulate the coolant within the water-cooled pipe 31.

[0042] In this embodiment, the signal line used to connect the low-pass filter 2 and the driving device 4 is an IPX signal line.

[0043] Optionally, the cooling device 3 and the driving device 4 are bonded to the bottom surface of the laser circuit board body 1 via a silicone grease layer. The silicone grease layer has good thermal conductivity, which can improve the efficiency of heat transfer from the laser circuit board body 1 to the coolant.

[0044] like Figures 4-6 As shown, Figure 4 for Figure 2 A schematic diagram of the cooling device 3 and the drive device 4 from a given perspective; Figure 5 for Figure 3 Enlarged diagram of point α in the diagram; Figure 6 for Figure 3 Enlarged schematic diagram of β in the figure.

[0045] The drive unit 4 includes a drive tank 41, a first three-phase connector 42, and a second three-phase connector 43. The first three-phase connector 42 includes terminals A, B, and C, and the second three-phase connector 43 includes terminals D, E, and F. Terminals A and B of the first three-phase connector 42 are connected to one side of the drive tank 41, terminal C of the first three-phase connector 42 is connected to one end of the water-cooling pipe 31, terminals D and E of the second three-phase connector 43 are connected to the other side of the drive tank 41, and terminal F of the second three-phase connector 43 is connected to the other end of the water-cooling pipe 31. One end of the signal line is connected to the low-pass filter 2, and the other end is connected to the drive tank 41. The coolant in the water-cooled pipe 31 can enter the drive tank 41 through any one of the following pipe paths in sequence: end C, end A, end C, end B, end F, end D, or end F, end E; the coolant in the drive tank 41 can also enter the water-cooled pipe 31 through any one of the following pipe paths in sequence: end A, end C, end B, end C, end D, end F, or end E, end F.

[0046] Optional, such as Figure 7The diagram shows the structural components contained within the drive tank 41. Inside the drive tank 41, there is a first diaphragm 411, a magnet 413, and a coil 414. The coil 414 is wrapped around the magnet 413. The first diaphragm 411 is located at one end of the magnet 413. The A end of the first three-phase connector 42 and the D end of the second three-phase connector 43 are close to the first diaphragm 411, while the B end and the E end of the first three-phase connector 42 are far from the first diaphragm 411.

[0047] Optionally, a second diaphragm 412 is also provided inside the drive tank 41. The second diaphragm 412 is located at the other end of the magnet 413. That is, the first diaphragm 411 and the second diaphragm 412 are respectively located at both ends inside the drive tank 41, and a magnet 413 covered with a coil 414 is provided between the first diaphragm 411 and the second diaphragm 412. The B end and the E end of the first three-phase connector 42 are close to the second diaphragm 412.

[0048] The signal line is connected to the coil 414 inside the drive tank 41.

[0049] Optionally, a first check valve 421 is provided at end A, a second check valve 422 is provided at end B, a third check valve 431 is provided at end D, and a fourth check valve 432 is provided at end E.

[0050] Optionally, the first check valve 421 and the fourth check valve 432 have the same opening and closing state, and the second check valve 422 and the third check valve 431 have the same opening and closing state, while the first check valve 421 and the second check valve 422 have different opening and closing states.

[0051] The laser circuit board operates by continuously receiving corresponding electrical signals and executing corresponding actions. The low-pass filter 2 reuses these electrical signals to filter them into low-frequency signals without affecting the operation of the laser circuit board, and then sends the low-frequency signals into the drive tank 41. The magnet 413, which is covered with a coil 414, converts the low-frequency signals into high-amplitude bass signals. The bass signals are used as the driving medium to drive the first diaphragm 411 or the second diaphragm 412 to make reciprocating motion relative to the magnet 413. At the same time, combined with the opening and closing of the four one-way valves, it provides power for the flow of coolant in the water-cooling pipe 31.

[0052] While the first diaphragm 411 and the second diaphragm 412 are making reciprocating motion relative to the magnet 413, they are also vibrating and rotating circumferentially.

[0053] When the magnet 413 uses bass to drive the first diaphragm 411 to move toward the magnet 413 and the second diaphragm 412 to move away from the magnet 413, the first one-way valve 421 and the fourth one-way valve 432 open, and the second one-way valve 422 and the third one-way valve 431 close. The coolant is drawn into the drive tank 41 through the C end and the A end, and the coolant in the drive tank 41 is discharged into the water cooling pipe 31 through the E end and the F end.

[0054] When magnet 413 uses bass to drive the first diaphragm 411 to move away from magnet 413 and the second diaphragm 412 to move towards magnet 413, the first one-way valve 421 and the fourth one-way valve 432 are closed, and the second one-way valve 422 and the third one-way valve 431 are opened. Coolant is drawn into drive tank 41 through F end and D end, and coolant in drive tank 41 is discharged into water cooling pipe 31 through B end and C end.

[0055] By opening and closing a specific one-way valve, the movement state of the coolant in the drive tank 41 and the water cooling pipe 31 is made consistent at the same time, which prevents the coolant from flowing back when the water pressure decreases and improves the efficiency of the coolant in carrying away heat.

[0056] Based on the low-frequency signal filtered by low-pass filter 2, the reciprocating motion state of the first diaphragm 411 or the second diaphragm 412 relative to the magnet 413 can be controlled; the opening and closing of the corresponding one-way valve can be synchronously controlled based on the reciprocating motion state of the first diaphragm 411 or the second diaphragm 412 relative to the magnet 413. These are control methods that can be implemented by those skilled in the art, and will not be described in detail here.

[0057] The drive tank 41 drives the flow of coolant in the water-cooled pipe 31 by drawing in and discharging coolant.

[0058] The upper bottom surface of the laser circuit board body 1 is provided with a number of lasers 11, and the cooling device 3 also includes a number of water cooling units 32 disposed on the water cooling pipe 31. The water cooling units 32 are disposed on the lower bottom surface of the circuit board body 1 at the position corresponding to the lasers 11.

[0059] The main component that generates heat in the laser circuit board is the laser 11.

[0060] The water-cooling unit 32 includes a housing 323, a water-driven shaft 321, and a water-driven impeller 322. The water-driven shaft 321 and the water-driven impeller 322 are located inside the housing 323, and the water-driven impeller 322 is fixedly mounted on the water-driven shaft 321. When the coolant flows in the water-cooling pipe 31 and the water-cooling unit 32, the coolant drives the water-driven impeller 322 and the water-driven shaft 321 inside the housing 323 to rotate. The rotation of the water-driven impeller 322 further provides power for the flow of coolant.

[0061] Because the coolant can effectively remove heat from the laser circuit board components above the water-cooling pipe 31 during its circulation, the path of the water-cooling pipe 31 is designed to be located below all heat-generating components of the laser circuit board. The circulation of the coolant within the water-cooling pipe 31 also accelerates the dissipation of heat carried by the coolant into the outside air.

[0062] Meanwhile, because the space inside the housing 323 is large, there is also more coolant inside the housing 323. As the coolant flows through the housing 323, it can effectively remove the heat transferred from the laser 11.

[0063] Optionally, the cooling device 3 also includes a fan 33. Part of the water shaft 321 is located inside the housing 323, and another part extends from the bottom surface of the housing 323. That is, part of the water shaft 321 is located below the bottom surface of the housing 323. The fan 33 is fixedly installed on this part of the water shaft 321. During the rotation of the water shaft 321, the fan 33 is driven to rotate, which accelerates the airflow around the housing 323. The coolant inside the housing 323 is cooled by air cooling, which further enhances the ability of the coolant to remove the heat transferred from the laser 11 and further promotes the heat dissipation and cooling of the laser 11.

[0064] This invention discloses a stable laser circuit board. It utilizes a low-pass filter to reuse the electrical signals received during laser circuit board operation. A magnet with a coil inside the drive tank converts the electrical signals into high-amplitude bass frequencies, which are then used as the driving medium to power the flow of coolant. The low-pass filter filters the frequency of the electrical signals, preventing the generation of magnetic fields that could interfere with them. Therefore, this invention fundamentally avoids using a motor or water pump as the driving source for the cooling device. This directly avoids the vibrations generated by motors or water pumps during operation and prevents electromagnetic interference to the laser circuit board. In other words, this invention achieves heat dissipation without adversely affecting the stability of the laser circuit board, ensuring its stable operation.

[0065] This invention relates to a stable laser circuit board that uses a combination of water cooling and air cooling to dissipate heat and reduce the temperature of the laser circuit board, resulting in a good heat dissipation and cooling effect.

[0066] In the drive tank of this utility model, the bass frequency acts as the driving medium. By directly acting on the first and second diaphragms to make reciprocating motion relative to the magnet, the coolant is drawn into or discharged from the drive tank, providing power for the coolant to circulate in the water-cooling pipe. During the flow of the coolant in the water-cooling pipe, it drives the water turbine and water shaft in the casing to rotate. The rotation of the water turbine further provides power for the flow of coolant.

[0067] The technologies, shapes, and structures not described in detail in this utility model are all known technologies. It should also be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. The components or steps in the embodiments of this utility model can be decomposed and / or recombined, and these decompositions and / or recombinations should be considered as equivalent solutions of this application and should all fall within the protection scope of this utility model.

Claims

1. A laser circuit board for stable operation, comprising a laser circuit board body (1), characterized in that, It also includes: a low-pass filter (2), a cooling device (3), and a driving device (4). The low-pass filter (2) is fixedly installed on the upper bottom surface of the laser circuit board body (1). The cooling device (3) and the driving device (4) are fixedly installed on the lower bottom surface of the laser circuit board body (1). The low-pass filter (2) is connected to the driving device (4) via a signal. The cooling device (3) includes a water-cooled pipe (31) filled with coolant. The driving device (4) is installed on the water-cooled pipe (31). The driving device (4) is used to convert the low-frequency signal output by the low-pass filter (2) into a low-frequency signal. The low-frequency signal drives the coolant in the water-cooled pipe (31) to flow.

2. The laser circuit board for stable operation according to claim 1, characterized in that: The drive unit (4) includes a drive tank (41), a first three-phase connector (42), and a second three-phase connector (43). The first three-phase connector (42) includes an A end, a B end, and a C end. The A end and the B end are connected to one side of the drive tank (41), and the C end is connected to one end of the water-cooling pipe (31). The second three-phase connector (43) includes a D end, an E end, and a F end. The D end and the E end are connected to the other side of the drive tank (41), and the F end is connected to the other end of the water-cooling pipe (31). One end of the signal line is connected to the low-pass filter (2), and the other end is connected to the drive tank (41).

3. The laser circuit board for stable operation according to claim 2, characterized in that: The drive tank (41) is equipped with a first diaphragm (411), a magnet (413) and a coil (414). The coil (414) is wrapped around the magnet (413). The first diaphragm (411) is located at one end of the magnet (413). Ends A and D are close to the first diaphragm (411), while ends B and E are far from the first diaphragm (411). The signal line is connected to the coil (414).

4. The laser circuit board for stable operation according to claim 3, characterized in that: The drive tank (41) is also provided with a second diaphragm (412). The first diaphragm (411) and the second diaphragm (412) are respectively located at both ends inside the drive tank (41). The magnet (413) is located between the first diaphragm (411) and the second diaphragm (412), with the B end and the E end close to the second diaphragm (412).

5. A laser circuit board for stable operation according to claim 2, characterized in that: A first check valve (421) is provided at end A, a second check valve (422) is provided at end B, a third check valve (431) is provided at end D, and a fourth check valve (432) is provided at end E.

6. The laser circuit board for stable operation according to claim 5, characterized in that: The first check valve (421) and the fourth check valve (432) have the same opening and closing state, and the second check valve (422) and the third check valve (431) have the same opening and closing state, while the first check valve (421) and the second check valve (422) have different opening and closing states.

7. The laser circuit board for stable operation according to claim 1, characterized in that: Several lasers (11) are arranged on the bottom surface of the laser circuit board body (1). The cooling device (3) also includes several water cooling units (32) arranged on the water cooling pipe (31). The water cooling units (32) are located on the bottom surface of the circuit board body (1) corresponding to the lasers (11).

8. A laser circuit board for stable operation according to claim 7, characterized in that: The water-cooling unit (32) includes a housing (323), a water-driven shaft (321), and a water-driven wheel (322). The water-driven shaft (321) and the water-driven wheel (322) are located inside the housing (323), and the water-driven wheel (322) is fixedly mounted on the water-driven shaft (321).

9. A laser circuit board for stable operation according to claim 8, characterized in that: The cooling device (3) also includes a fan (33), a part of the water shaft (321) is located inside the housing (323), and another part of the water shaft (321) is located below the bottom surface of the housing (323). The fan (33) is fixedly installed on the water shaft (321) located below the bottom surface of the housing (323).

10. A laser circuit board for stable operation according to claim 1, characterized in that: The cooling device (3) and the driving device (4) are bonded to the bottom surface of the laser circuit board body (1) by a silicone grease layer.