LD integrated fixed heat dissipation structure and LD integrated module

Abstract

The invention relates to an LD integrated fixing heat dissipation structure which is mainly used for fixing an LD and conducting heat dissipation on the LD. The fixed heat dissipation structure comprises an LD fixing base, a coupling connecting piece, a connecting sleeve, an insertion core outer sleeve, a closed sleeve and an insertion core, the LD fixing base is of a hollow structure with two open ends, the LD is fixed to one end of the LD fixing base through an LD pressing ring, and the insertion core is fixed to the other end of the LD fixing base through the insertion core outer sleeve, the coupling connecting piece and the connecting sleeve; and the closed sleeve is sleeved outside the insertion core and is positioned in the insertion core jacket. The LD integrated fixed heat dissipation structure is ingenious, and the single LD is directly fixed on the high heat conduction material, so that the heat dissipation capability can be effectively improved, the influence of temperature on the LD is reduced, and the use effect is ensured. According to the LD integrated module, the single LD integrated fixed heat dissipation structure is integrated and installed on the water cooling block, so that a high-power light source is formed, in the process, the influence of the temperature on the LD can be further reduced, and the stability of the high-power light source in the using process is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of light sources, in particular to an LD integrated fixed heat dissipation structure and an LD integrated module. Background Art

[0002] Light source power is an important specification indicator that characterizes the production capacity of LDI (laser direct imaging) equipment. The typical wavelength of the LD (laser diode) currently used is 405nm, and the power of a single LD is only 0.8W, 1.2W, etc. If a 100W high-power light source is to be obtained, it is often necessary to integrate multiple LDs into a whole array. During the integration process, the temperature and the stability and consistency of the structure under long-term use have an important impact on the LD wavelength, output power and life.

[0003] At present, the industry usually adopts water cooling to cool the above integrated structure, so as to reduce the influence of temperature on the integrated LD. However, the water cooling method has problems such as poor consistency of temperature distribution and large fluctuations. In addition, the light source in other LDI devices on the market currently adopts the method of LD spatial coupling and then output through light, which leads to its complex structure and low heat dissipation efficiency. Therefore, the water inlet temperature of the water cooler is required to be lower, which increases power consumption. In addition, the coupling module method has high sealing performance, but it also has problems such as difficult maintenance and high cost. In addition, it is difficult to control temperature fluctuations, which will undoubtedly affect the use of laser equipment and the user experience, and is not conducive to the promotion and application of the above laser direct writing imaging equipment in the market. Summary of the invention

[0004] In order to overcome the defects in the above-mentioned prior art, the first invention purpose of the present invention is to provide an LD integrated fixed heat dissipation structure. The LD integrated fixed heat dissipation structure is ingenious. By directly fixing a single LD on a high thermal conductivity material, it can effectively increase the heat dissipation capacity and reduce the influence of temperature on the LD, thereby ensuring the use effect and enhancing the user experience, which is conducive to the promotion and application of the above-mentioned LD integrated fixed heat dissipation structure in the market. The second invention purpose of the present invention is to provide an LD integrated module, by integrating the above-mentioned single LD integrated fixed heat dissipation structure and installing it on a water cooling block, thereby forming a high-power light source. In this process, the influence of temperature on the LD can be further reduced, ensuring the stability of the high-power light source during use.

[0005] The above-mentioned LD integrated fixed heat dissipation structure and the above-mentioned LD integrated module are technically related to each other and belong to the same inventive concept.

[0006] In order to achieve the above-mentioned first invention purpose, the present invention adopts the following technical scheme: an LD integrated fixed heat dissipation structure, mainly used to fix the LD and dissipate heat for the LD; the fixed heat dissipation structure includes an LD fixing seat, a coupling connector, a connecting sleeve, a core sleeve, a closed sleeve and a core, the LD fixing seat is a structure with openings at both ends and a hollow interior, the LD is fixed to one end of the LD fixing seat by an LD pressure ring, the core is fixed to the other end of the LD fixing seat by the core sleeve, the coupling connector and the connecting sleeve, and the closed sleeve is sleeved outside the core and is located inside the core sleeve.

[0007] As a preferred solution of the present invention, the LD pressing ring includes an embedding portion located in the LD fixing seat and a mounting portion located outside the LD fixing seat, and a through hole for the LD to pass through is formed at the center of the embedding portion and the mounting portion.

[0008] As a preferred solution of the present invention, the edge of the mounting portion is cut to form a hand-held portion that is convenient for holding.

[0009] As a preferred solution of the present invention, an LD mounting position, a pressure ring mounting position, a connector mounting position and a connecting sleeve mounting position are formed inside the LD fixing seat. The LD mounting position and the pressure ring mounting position are installed on the same side, the connector mounting position and the connecting sleeve mounting position are installed on the other side of the same side, and the LD mounting position and the connector mounting position are tightened to form a lens mounting position for lens installation.

[0010] As a preferred solution of the present invention, the LD fixing seat and the LD pressing ring are both made of high thermal conductivity materials and can dissipate heat for the LD at the same time.

[0011] As a preferred solution of the present invention, a core mounting hole for installing the core is formed inside the core sleeve, and the core mounting hole is a through hole that penetrates the outside of the core sleeve, and the core sleeve body is provided with a heat dissipation hole, and the central axis of the heat dissipation hole is set at an angle to the central axis of the core mounting hole; the closed sleeve is located between the core and the core sleeve.

[0012] As a preferred solution of the present invention, the closed sleeve and the insert are both made of ceramic material.

[0013] As a preferred solution of the present invention, the connecting sleeve is made of stainless steel.

[0014] Compared with the prior art, the beneficial effects of the present invention are: an LD integrated fixed heat dissipation structure in the present invention, which fixes and dissipates heat for a single LD, that is, directly fixes the LD on a high thermal conductivity material, can effectively increase the heat dissipation capacity of the LD, reduce the influence of temperature on the LD, thereby ensuring the performance and service life of the LD, reducing the cost of use, and is conducive to the promotion and application of the above-mentioned LD integrated fixed heat dissipation structure in the market.

[0015] In order to achieve the above-mentioned second invention purpose, the present invention adopts the following technical scheme: an LD integrated module, including multiple groups of LD integrated fixed heat dissipation structures as mentioned above; also including a water-cooling block with a water supply channel inside, the water-cooling block is provided with an installation position for installing a single LD module, the installation positions are multiple, and there is a spacing between two adjacent installation positions.

[0016] As a preferred solution of the present invention, there are multiple water-cooling blocks, and two adjacent water-cooling blocks are connected by a connecting pipe, one of the water-cooling blocks has a water inlet, and the other water-cooling block has a water outlet.

[0017] Compared with the prior art, the beneficial effects of the present invention are: an LD integrated module in the present invention forms a high-power light source by integrating the above-mentioned single LD integrated fixed heat dissipation structure and installing it on a water cooling block. In this process, the influence of temperature on LD can be further reduced, thereby ensuring the stability of the high-power light source during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural stereogram of an LD integrated fixed heat dissipation structure in an embodiment of the present invention; Figure 2 This is a structural front view of an LD integrated fixed heat dissipation structure in an embodiment of the present invention; Figure 3 yes Figure 2 Structural cross-section view along the AA axis; Figure 4 is a schematic structural diagram of the LD pressing ring in an embodiment of the present invention; Figure 5 is a schematic structural diagram of an LD fixing seat in an embodiment of the present invention; Figure 6 yes Figure 5 Structural cross-section view along the BB direction; Figure 7 is a schematic structural diagram of an insert jacket in an embodiment of the present invention; Figure 8 is a schematic structural diagram of an insert in an embodiment of the present invention; Fig. 9It is a structural schematic diagram of an LD integrated module in an embodiment of the present invention.

[0019] Figure markings: 1. Single LD module; 1-1. LD; 1-2. LD pressure ring; 1-2-1. Embedding portion; 1-2-2. Mounting portion; 1-2-3. Through hole; 1-3. LD fixing seat; 1-3-1. LD mounting position; 1-3-2. Pressure ring mounting position; 1-3-3. Connector mounting position; 1-3-4. Connecting sleeve mounting position; 1-3-5. Lens mounting position; 1-4. Coupling connector; 1-5. Connecting sleeve; 1-6. Insert sleeve; 1-6-1. Insert mounting hole; 1-6-2. Heat dissipation hole; 1-7. Closed sleeve; 1-8. Insert; 1-9. Lens; 2. Water cooling block; 3. Mounting position; 4. Connecting pipe; 5. Water inlet; 6. Water outlet. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is described below by the specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0021] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0022] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0023] Example: Figures 1 to 9As shown, an LD integrated fixed heat dissipation structure is mainly used to fix a single LD1-1 and perform preliminary heat dissipation on a single LD1-1, thereby reducing the impact of temperature on a single LD1-1 during operation, and then facilitating the subsequent integration of LD1-1 to form a high-power light source structure to meet usage requirements. The fixed heat dissipation structure in this embodiment is mainly composed of an LD fixing seat 1-3, a coupling connector 1-4, a connecting sleeve 1-5, a core sleeve 1-6, a closed sleeve 1-7 and a core 1-8. The LD fixing seat 1-3 is used to fix the position of LD1-1 on the one hand, and on the other hand, because it is made of a high thermal conductivity material, specifically, it can be made of copper material, so that the LD1-1 can be heat-dissipated, reducing the impact of temperature on LD1-1 during use. The coupling connector 1-4 is responsible for effectively transmitting the optical signal emitted by LD1-1 to the optical fiber, and plays the role of connecting the signal. In order to facilitate the integrated design of the above components to form a whole, the above LD fixing seat 1-3 in this embodiment is a structure with both ends open and the interior hollow. The above LD1-1 is fixed to one end of the above LD fixing seat 1-3 by the LD pressing ring 1-2. In this process, the above LD pressing ring 1-2 is also made of high thermal conductivity material. During use, since the LD pressing ring 1-2 and the LD fixing seat 1-3 directly contact the above LD1-1, the above LD pressing ring 1-2 and the LD fixing seat 1-3 are both made of high thermal conductivity materials, which can dissipate heat for LD1-1 at the same time and reduce the impact of temperature on LD1-1. The above ferrule 1-8 is fixed to the other end of the above LD fixing seat 1-3 by the above ferrule jacket 1-6, the above coupling connector 1-4 and the above connecting sleeve 1-5. The above closed sleeve 1-7 is sleeved on the outside of the above ferrule 1-8 and located in the above ferrule jacket 1-6, ensuring the overall compactness of the LD integrated fixed heat dissipation structure while ensuring its stability during use.

[0024] In order to ensure the stability of the LD pressing ring 1-2 during installation and use, and to reduce the probability of the LD1-1 being detached from the LD fixing seat 1-3, the LD pressing ring 1-2 in this embodiment includes an embedded portion 1-2-1 located in the LD fixing seat 1-3 and a mounting portion 1-2-2 located outside the LD fixing seat 1-3. A through hole 1-2-3 for the LD1-1 to pass through is formed at the center of the embedded portion 1-2-1 and the mounting portion 1-2-2. The through hole 1-2-3 allows the LD1-1 to pass through on the one hand, and also serves as a heat dissipation function on the other hand, thereby further reducing the impact of temperature on the LD1-1. In order to facilitate disassembly and assembly and reduce the difficulty of installation, the edge of the mounting portion 1-2-2 is cut to form a hand-held portion 1-2-4 that is easy to hold. The two hand-held portions 1-2-4 are symmetrically arranged to conform to the ergonomic design and facilitate operation by the operator.

[0025] In order to make the LD integrated fixed heat dissipation structure small and compact as a whole, the present embodiment forms an LD mounting position 1-3-1, a pressure ring mounting position 1-3-2, a connector mounting position 1-3-3 and a connecting sleeve mounting position 1-3-4 inside the above-mentioned LD fixing seat 1-3. The above-mentioned LD mounting position 1-3-1 and the above-mentioned pressure ring mounting position 1-3-2 are installed on the same side, and the above-mentioned connector mounting position 1-3-3 and the above-mentioned connecting sleeve mounting position 1-3-4 are installed on the other side of the same side. The above-mentioned LD mounting position 1-3-1 and the above-mentioned connector mounting position 1-3-3 are tightened to form a lens mounting position 1-3-5 for installing the lens 1-9. The cross-sectional width at the tightening position is smaller than the cross-sectional width of LD1-1, so it can also play a limiting role to prevent LD1-1 from moving to the position of the ferrule 1-8, thereby ensuring the stability and performance of LD1-1 during installation and use, and reducing the probability of its shaking or movement.

[0026] In order to facilitate installation, reduce installation difficulty, and further make the overall structure compact, the ferrule jacket 1-6 is internally formed with a ferrule installation hole 1-6-1 for installing the ferrule 1-8. The ferrule installation hole 1-6-1 is a through hole that penetrates the outside of the ferrule jacket 1-6. The main body of the ferrule jacket 1-6 is provided with a heat dissipation hole 1-6-2. The central axis of the heat dissipation hole 1-6-2 is set at an angle to the central axis of the ferrule installation hole 1-6-1, and can be set vertically, so that the heat inside the ferrule jacket 1-6 flows to the outside to play a role in heat dissipation. In order to further ensure the reliability of the overall structure and reduce the probability of looseness, the closed sleeve 1-7 is located between the ferrule 1-8 and the ferrule jacket 1-6.

[0027] The above-mentioned closed sleeve 1-7 and the above-mentioned core insert 1-8 are both made of ceramic materials, so that the above-mentioned closed sleeve 1-7 and the above-mentioned core insert 1-8 have good stability in high temperature environment and can play an insulating role. It is best to be made of high thermal conductivity ceramic material, so that it can quickly conduct heat, effectively reduce thermal resistance, improve heat conduction efficiency, and reduce the impact of temperature on LD1-1.

[0028] The above-mentioned connecting sleeve 1-5 is made of stainless steel, which has a high thermal conductivity at high temperature. It can reduce the influence of temperature on itself and realize heat conduction, transfer the heat inside it to the outside, so as to further reduce the influence of temperature on LD1-1.

[0029] An LD integrated fixed heat dissipation structure in the present embodiment fixes and dissipates heat for a single LD1-1, i.e., directly fixes LD1-1 on a high thermal conductivity material, thereby effectively increasing the heat dissipation capacity of the LD and reducing the effect of temperature on the LD, thereby ensuring the performance and service life of the LD and reducing the cost of use, which is conducive to the promotion and application of the above-mentioned LD integrated fixed heat dissipation structure in the market.

[0030] A LD integrated module is mainly composed of a plurality of the above-mentioned single LD modules 1. By integrating and installing a plurality of the above-mentioned single LD integrated fixed heat dissipation structures, i.e., a single LD module 1, on a water-cooling block 2, a high-power light source is formed. In this process, the influence of temperature on LD can be further reduced, and the stability of the high-power light source during use can be ensured. In order to ensure the stability of the single LD module 1 during installation and use, and then ensure its performance, the water-cooling block 2 is provided with a mounting position 3 for the installation of the single LD module 1. The mounting positions 3 are multiple. In order to avoid the mutual influence between the adjacent single LD modules 1, in this embodiment, the adjacent two mounting positions 3 are arranged at intervals, preferably equidistantly. The equidistantly arranged LD array can provide a more uniform light field distribution, which is very important for application scenarios requiring uniform illumination, such as in the fields of laser processing, medical equipment, and scientific research. In order to further reduce the influence of temperature on LD, in this embodiment, a water supply channel capable of inletting water is arranged inside the water-cooling block 2. By pouring cold water into the water supply channel, the cold water in the water supply channel can take away the temperature on the LD, thereby reducing the influence of temperature on the LD integrated module. The specific size and quantity of the water supply channel can be customized according to the actual needs during use. The water supply channel can be made of micro-channel aluminum profiles, which can effectively control the cost of use.

[0031] Furthermore, in order to form a high-power LD light source structure to meet the use requirements, the water-cooling block 2 can be designed to be multiple, each water-cooling block 2 is provided with a mounting position 3 for a single LD module 1, and two adjacent water-cooling blocks 2 are connected by a connecting pipe 4, one of the water-cooling blocks 2 has a water inlet 5, and the other water-cooling block 2 has a water outlet 6. Using cold water as a cooling medium can more effectively absorb and transfer heat, because the heat capacity of liquid is much higher than that of air, and it can take away heat more quickly, ensuring that the LD will not overheat during high-performance operation. Compared with the traditional air cooling system, the liquid cooling system achieves cooling by circulating liquid, has higher energy efficiency, can significantly reduce energy consumption, and thus reduce the cost of use, which is conducive to the promotion and application of the above-mentioned LD integrated module in the market.

[0032] During the actual installation process, a single LD module 1 is fully wrapped and in contact with the mounting position 3 on the water cooling block 2, so that the heat dissipation area is large, thereby ensuring that the heat dissipation effect of the single LD module 1 reaches the best state.

[0033] An LD integrated module in the present embodiment forms a high-power light source by integrating the above-mentioned single LD integrated fixed heat dissipation structure and installing it on the water cooling block 2. In this process, the influence of temperature on LD can be further reduced, thereby ensuring the stability of the high-power light source during use.

[0034] After the water supply channel in the water cooling block 2 is designed, the temperature difference between the single LD module 1 at the water inlet 5 and the water outlet 6 is small, which can ensure that the light output characteristics of LD1-1 are consistent, thereby meeting the use requirements and enhancing the use experience.

[0035] In actual use, the LD integrated module can be expanded with mounting positions 3 according to the number and power of the single LD modules 1, and the temperature control of the LD can be achieved by simply changing the inlet and outlet flow and the control temperature, thereby reducing the influence of the temperature on the LD.

[0036] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may 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 rather to the widest scope consistent with the principles and novel features disclosed herein.

[0037] Although this article uses more of the following terms: 1. single LD module; 1-1. LD; 1-2. LD pressure ring; 1-2-1. embedded portion; 1-2-2. mounting portion; 1-2-3. through hole; 1-3. LD fixing seat; 1-3-1. LD mounting position; 1-3-2. pressure ring mounting position; 1-3-3. connector mounting position; 1-3-4. connector sleeve mounting position; 1-3-5. lens mounting position; 1-4. coupling connector; 1-5. connector sleeve; 1-6. ferrule sleeve; 1-6-1. ferrule mounting hole; 1-6-2. heat dissipation hole; 1-7. closed sleeve; 1-8. ferrule; 1-9. lens; 2. water cooling block; 3. mounting position; 4. connecting pipe; 5. water inlet; 6. water outlet, etc., the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the present invention; any additional limitations interpreted as them are contrary to the spirit of the present invention.

Claims

1. An LD integrated fixed heat dissipation structure, characterized in that: The invention is mainly used for fixing an LD (1-1) and dissipating heat for the LD (1-1); the fixed heat dissipation structure comprises an LD fixing seat (1-3), a coupling connector (1-4), a connecting sleeve (1-5), a core insert sleeve (1-6), a closed sleeve (1-7) and a core insert (1-8); the LD fixing seat (1-3) is a structure with two ends open and an internal hollow structure; the LD (1-1) is fixed to one end of the LD fixing seat (1-3) by an LD pressure ring (1-2); the core insert (1-8) is fixed to the other end of the LD fixing seat (1-3) by the core insert sleeve (1-6), the coupling connector (1-4) and the connecting sleeve (1-5); the closed sleeve (1-7) is sleeved outside the core insert (1-8) and is located inside the core insert sleeve (1-6).

2. The LD integrated fixed heat dissipation structure according to claim 1, characterized in that: The LD pressing ring (1-2) comprises an embedded portion (1-2-1) located inside the LD fixing seat (1-3) and a mounting portion (1-2-2) located outside the LD fixing seat (1-3), and a through hole (1-2-3) for the LD (1-1) to pass through is formed at the center of the embedded portion (1-2-1) and the mounting portion (1-2-2).

3. The LD integrated fixed heat dissipation structure according to claim 2, characterized in that: The edge of the mounting portion (1-2-2) is cut to form a hand-held portion (1-2-4) that is convenient for hand-holding.

4. The LD integrated fixed heat dissipation structure according to claim 2, characterized in that: An LD mounting position (1-3-1), a pressure ring mounting position (1-3-2), a connecting piece mounting position (1-3-3) and a connecting sleeve mounting position (1-3-4) are formed inside the LD fixing seat (1-3); the LD mounting position (1-3-1) and the pressure ring mounting position (1-3-2) are located on the same side for installation; the connecting piece mounting position (1-3-3) and the connecting sleeve mounting position (1-3-4) are located on the other side of the same side for installation; the LD mounting position (1-3-1) and the connecting piece mounting position (1-3-3) are tightened to form a lens mounting position (1-3-5) for installing a lens (1-9).

5. The LD integrated fixed heat dissipation structure according to claim 2, characterized in that: The LD fixing seat (1-3) and the LD pressing ring (1-2) are both made of high thermal conductivity material and can dissipate heat for the LD (1-1) at the same time.

6. The LD integrated fixed heat dissipation structure according to claim 2, characterized in that: The ferrule sleeve (1-6) has an ferrule mounting hole (1-6-1) formed inside for mounting the ferrule (1-8); the ferrule mounting hole (1-6-1) is a through hole that penetrates the outside of the ferrule sleeve (1-6); the ferrule sleeve (1-6) body is provided with a heat dissipation hole (1-6-2); the central axis of the heat dissipation hole (1-6-2) is arranged at an angle to the central axis of the ferrule mounting hole (1-6-1); the closed sleeve (1-7) is located between the ferrule (1-8) and the ferrule sleeve (1-6).

7. The LD integrated fixed heat dissipation structure according to claim 6, characterized in that: The closed sleeve (1-7) and the insert core (1-8) are both made of ceramic material.

8. The LD integrated fixed heat dissipation structure according to claim 1, characterized in that: The connecting sleeve (1-5) is made of stainless steel.

9. An LD integrated module, characterized in that: It comprises a plurality of LD integrated fixed heat dissipation structures as claimed in any one of claims 1 to 8; and also comprises a water cooling block (2) having a water supply channel inside, wherein the water cooling block (2) is provided with a mounting position (3) for mounting a single LD module (1), and there are a plurality of mounting positions (3), and a spacing is arranged between two adjacent mounting positions (3).

10. The LD integrated module according to claim 9, characterized in that: There are a plurality of water cooling blocks (2), and two adjacent water cooling blocks (2) are connected via a connecting pipe (4), one of the water cooling blocks (2) has a water inlet (5), and the other water cooling block (2) has a water outlet (6).

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