Liquid-cooled laser crystal mounting support and solid laser

Abstract

The utility model belongs to the technical field of laser crystals, and discloses a liquid-cooled laser crystal mounting support and a solid laser, the liquid-cooled laser crystal mounting support comprises a base and a pressing plate, the base is provided with a first limiting groove, the base is internally provided with a water inlet channel with a water inlet and a water outlet channel with a water outlet, and the pressing plate is provided with a second limiting groove. The water inlet channel and the water outlet channel penetrate through the top surface and the bottom surface of the base, and the water inlet and the water outlet are formed in the bottom surface of the base; the base is detachably connected with the pressing plate, a second limiting groove is formed in the pressing plate, and a water channel is formed in the pressing plate; the first limiting groove and the second limiting groove define a space used for containing the laser crystal, and the water inlet channel, the water channel and the water outlet channel are communicated to form a cooling loop arranged around the laser crystal. Therefore, the liquid-cooled laser crystal mounting support is compact in structure, shortens the heat transfer path, reduces the total thermal resistance in the heat transfer process, improves the heat conduction and heat dissipation efficiency, is convenient to process, and is favorable for reducing the cost.

Description

Technical Field

[0001] This utility model relates to the field of laser crystal technology, and in particular to a liquid-cooled laser crystal mounting bracket and a solid-state laser. Background Technology

[0002] Laser crystals are an important component of lasers. They are fixed and limited by mounting brackets. Since laser crystals generate a lot of heat when they are working, it is necessary to dissipate heat from them in a timely manner to prevent them from overheating and affecting their performance.

[0003] To facilitate heat dissipation, mounting brackets are typically made of materials with good thermal conductivity and are equipped with heat sinks to cool them down. However, in the above process, the heat generated by the laser crystal needs to be transferred to the outside through at least two contact heat conductions, resulting in high contact thermal resistance and low heat conduction efficiency, making it difficult to cool the laser crystal, which generates a large amount of heat. Utility Model Content

[0004] The purpose of this invention is to provide a liquid-cooled laser crystal mounting bracket and a solid-state laser to solve the problems of high contact thermal resistance and low heat conduction efficiency during the heat dissipation process of laser crystals.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] In a first aspect, a liquid-cooled laser crystal mounting bracket includes: a base, the base having a first limiting groove, the base having an inlet channel with a water inlet and an outlet channel with a water outlet inside, the inlet channel and the outlet channel both penetrating the top and bottom surfaces of the base, the inlet and the outlet both being located on the bottom surface of the base; and a pressure plate, the base and the pressure plate being detachably connected, the pressure plate having a second limiting groove, the pressure plate having a water channel inside; the first limiting groove and the second limiting groove enclosing a space for accommodating the laser crystal, the inlet channel, the water channel, and the outlet channel communicating to form a cooling circuit surrounding the laser crystal.

[0007] Preferably, the waterway includes a first flow channel, a second flow channel, and a third flow channel. The first flow channel and the third flow channel are connected to the inlet channel and the outlet channel, respectively, at one end near the base, and to the second flow channel, respectively, at the other end.

[0008] Preferably, a process hole is provided on one side wall of the pressure plate, the process hole is connected to the second flow channel, the second flow channel is formed by downward processing through the process hole and is connected to the first flow channel and the third flow channel.

[0009] Preferably, the connection surface between the base and the pressure plate is inclined, and the process hole is provided on the side of the pressure plate extending upward along the inclined direction of the connection surface.

[0010] Preferably, the liquid-cooled laser crystal mounting bracket further includes a sealing cover, which is detachably connected to the process hole and used to block the process hole so that the cooling water in the water channel does not flow out of the process hole; and / or, the process hole is blocked by welding with solder so that the cooling water in the water channel does not flow out of the process hole.

[0011] Preferably, the cross-sectional shape of the water inlet channel, the water channel, and the water outlet channel is any one of racetrack shape, circle, ellipse, and square.

[0012] Preferably, the liquid-cooled laser crystal mounting bracket further includes a sealing ring disposed at the water inlet of the water inlet channel and the water outlet of the water outlet channel; and / or, the sealing ring is disposed at the connection between the output end of the water inlet channel and the input end of the water channel, and at the connection between the input end of the water outlet channel and the output end of the water channel.

[0013] Preferably, the liquid-cooled laser crystal mounting bracket further includes an indium foil, which is attached to the groove walls of the first limiting groove and the second limiting groove; or, the indium foil is provided to cover the outer wall of the laser crystal.

[0014] Preferably, the liquid-cooled laser crystal mounting bracket further includes multiple connectors, and the base and the pressure plate are detachably connected through the connectors. The multiple connectors are symmetrically arranged on both sides of the waterway.

[0015] In a second aspect, a solid-state laser includes a liquid-cooled laser crystal mounting bracket as described above and a laser crystal mounted on the liquid-cooled laser crystal mounting bracket.

[0016] The beneficial effects of this utility model are:

[0017] A liquid-cooled laser crystal mounting bracket is provided for connection with a laser crystal. The liquid-cooled laser crystal mounting bracket includes a base and a pressure plate. The base has a first limiting groove, and the base has an inlet channel with a water inlet and an outlet channel with a water outlet. The inlet channel and the outlet channel are both located through the top and bottom surfaces of the base, and the inlet and outlet are both located on the bottom surface of the base. The base and the pressure plate are detachably connected. The pressure plate has a second limiting groove, and the pressure plate has a water channel inside. The first limiting groove and the second limiting groove form a space for accommodating the laser crystal. The inlet channel, the outlet channel, and the water channel are connected to form a cooling circuit surrounding the laser crystal.

[0018] Thus, since the inlet and outlet water channels are located inside the base, and the water channels are located inside the pressure plate, that is, the cooling circuit is located inside the liquid-cooled laser crystal mounting bracket, the coolant can circulate inside the base and pressure plate, shortening the heat transfer path. This allows the heat generated by the laser crystal during operation to be transferred to the outside more quickly through the coolant. Furthermore, both the inlet and outlet water outlets are located on the bottom surface of the base, and the inlet and outlet water channels penetrate the bottom and top surfaces of the base, which can extend the heat dissipation path and increase the contact area between the laser crystal and the liquid-cooled laser crystal mounting bracket. The liquid-cooled laser crystal mounting bracket has a compact structure and is easy to manufacture. It does not require additional process holes to complete the processing of the water channels in the base, and only one process hole is needed to complete the processing of the water channels in the pressure plate. This allows the liquid-cooled laser crystal mounting bracket to have higher heat dissipation efficiency and improve energy efficiency while maintaining its original shape, and at the same time, it helps to reduce costs. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the side structure of the liquid-cooled laser crystal mounting support in one embodiment of the present invention;

[0020] Figure 2 This is a first exploded view of a liquid-cooled laser crystal mounting bracket according to an embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of a liquid-cooled laser crystal mounting support in one embodiment of the present invention;

[0022] Figure 4 This is a bottom view of a liquid-cooled laser crystal mounting bracket in one embodiment of the present invention;

[0023] Figure 5 This is a second exploded view of the liquid-cooled laser crystal mounting bracket in one embodiment of the present invention;

[0024] Figure 6 This is a second exploded view of the liquid-cooled laser crystal mounting bracket from another angle in one embodiment of the present invention;

[0025] Figure 7 This is a side view of a liquid-cooled laser crystal mounting bracket in one embodiment of the present invention;

[0026] Figure 8 For along Figure 7 Cross-sectional view of line AA in the middle.

[0027] In the picture:

[0028] 1. Laser crystal; 2. Base; 21. First inclined surface; 22. First limiting groove; 23. Water inlet channel; 231. Water inlet; 24. Water outlet channel; 241. Water outlet; 3. Pressure plate; 31. Second inclined surface; 32. Second limiting groove; 33. Water channel; 331. First flow channel; 332. Second flow channel; 333. First flow channel; 34. Process hole; 35. Mounting and fixing hole; 4. Sealing cover; 5. Sealing ring; 6. Connecting piece. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0030] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0033] See Figure 1 and Figure 7This utility model provides a liquid-cooled laser crystal mounting bracket, which is connected to a laser crystal 1. The liquid-cooled laser crystal mounting bracket includes a base 2 and a pressure plate 3. The base 2 has a first limiting groove 22 for accommodating the laser crystal 1, and the base 2 has an inlet channel 23 and an outlet channel 24 inside. The base 2 and the pressure plate 3 are detachably connected. The pressure plate 3 has a second limiting groove 32 for accommodating the laser crystal 1, and the pressure plate 3 has a water channel 33 inside. The inlet end of the water channel 33 is connected to the inlet channel 23. The output end of the water channel 33 is connected to the water outlet channel 24; the water inlet channel 23 and the water outlet channel 24 are arranged in parallel. The water inlet channel 23 includes a water inlet 231, and the water outlet channel 24 includes a water outlet 241. The water inlet channel 23, the water outlet channel 24, and the water channel 33 form a cooling circuit surrounding the laser crystal 1. The water inlet channel 23 and the water outlet channel 24 both penetrate the top surface (i.e., the second inclined surface 31) and the bottom surface of the base 2. The water inlet 231 and the water outlet 241 are both located on the bottom surface of the base 2.

[0034] Furthermore, the base 2 is provided with a first inclined surface 21 and a first limiting groove 22 is provided on the first inclined surface 21. The pressure plate 3 is provided with a second inclined surface 31 on the side facing the base 2 and a second limiting groove 32 is provided on the second inclined surface 31. When the base 2 is connected to the pressure plate 3, the first inclined surface 21 and the second inclined surface 31 are fitted together to form a connection surface between the base 2 and the pressure plate 3.

[0035] In this embodiment, the laser crystal 1 is disposed within the accommodating space formed by the first limiting groove 22 and the second limiting groove 32. The output end of the water inlet channel 23 and the input end of the water outlet channel 24 are both disposed on the first inclined surface 21, and the input end and output end of the water channel 33 are both disposed on the second inclined surface 31. The two ends of the water channel 33 are respectively disposed at the output end of the water inlet channel 23 and the input end of the water outlet channel 24. Both the water inlet channel 23 and the water outlet channel 24 are perpendicular to the bottom surface of the base 2 (i.e., the side of the base 2 facing away from the second inclined surface 31). The cooling circuit surrounds the sidewall of the laser crystal 1. The water inlet 231 is disposed at the end of the water inlet channel 23 facing away from the water channel 33, and the water outlet 241 is disposed at the end of the water outlet channel 24 facing away from the water channel 33. The water inlet 231 is used to allow external cooling water to enter the cooling circuit, and the water outlet 241 is used to discharge the cooling water from the cooling circuit. Cooling water enters the cooling circuit from the inlet 231, flows through the inlet channel 23, the water channel 33 and the outlet channel 24, and finally flows out of the cooling circuit from the outlet 241 to remove the heat from the laser crystal 1 and achieve the cooling effect.

[0036] Thus, by placing the inlet channel 23 and outlet channel 24 inside the base 2 and the water channel 33 inside the pressure plate 3, and by ensuring that the inlet channel 23 and outlet channel 24 penetrate the top and bottom surfaces of the base 2, with the inlet 231 and outlet 241 both located on the bottom surface of the base 2, the base 2, pressure plate 3, and laser crystal 1 can be cooled by circulating the coolant within the inlet channel 23, outlet channel 24, and water channel 33 without altering the structure and arrangement of the base 2 and pressure plate 3. This method is different from traditional base 2 cooling systems. Compared to the traditional laser crystal-base-water-cooling plate heat dissipation method, this mounting bracket, used in conjunction with a water-cooling plate, shortens the heat transfer path between the laser crystal 1 and the base 2 and pressure plate 3. It increases the contact area between the laser crystal 1 and the liquid-cooled laser crystal mounting bracket, reduces the total thermal resistance during heat transfer, and improves heat dissipation efficiency. This allows the liquid-cooled laser crystal 1 mounting bracket to accommodate laser crystals with high heat generation, and it also saves on the installation of a water-cooling plate, making the overall structure of the liquid-cooled laser crystal mounting bracket lighter and improving energy efficiency. In some applications, the laser crystal 1 mounting bracket can also be directly connected to the water-cooling plate through the inlet 231 and outlet 241 on the base 2, improving heat dissipation efficiency through dual heat dissipation from both the liquid-cooled laser crystal 1 mounting bracket and the water-cooling plate. Furthermore, it simplifies the processing of the water channels in the base 2, eliminating the need for additional process holes, reducing processing costs, and lowering the risk of cooling water leakage.

[0037] It should be noted that in this embodiment, the water inlet channel 23 is located on the side of the base 2 extending upward along the extension direction of the first inclined surface 21, and the water outlet channel 24 is located on the side of the base 2 extending downward along the extension direction of the first inclined surface 21. That is, the length of the water inlet channel 23 is greater than the length of the water outlet channel 24.

[0038] It is understandable that the inlet channel 23 and outlet channel 24 can also be inclined to the bottom surface of the base 2. The inlet channel 23 and outlet channel 24 can be straight or curved. The setting position and extension direction of the inlet channel 23 and outlet channel 24 can be flexibly adjusted according to actual needs. The inlet channel 23 can also be set on the downward extension side of the base 2, and the outlet channel 24 can be set on the upward extension side of the base 2. This can achieve the circulation of coolant within the inlet channel 23, outlet channel 24 and water channel 33, which will not be elaborated here. At the same time, the inlet channel 23 and outlet channel 24 extend through the base 2 along the upward extension direction of the base 2, which makes it more convenient to process the inlet channel 23 and outlet channel 24. Compared with the liquid cooling crystal seat of the prior art that opens multiple process holes to connect the complex internal water channels, there is no need to open additional process holes on the crystal seat base. The processing is convenient, the cost is reduced, and the risk of cooling water leakage due to poor sealing caused by opening multiple process holes is effectively reduced.

[0039] See Figure 1 and Figure 7 In some embodiments, the first limiting groove 22 is disposed between the water inlet channel 23 and the water outlet channel 24. Further, the water inlet channel 23, the laser crystal 1, and the water outlet channel 24 are arranged sequentially along the extension direction of the first inclined surface 21.

[0040] In this way, by the flow of coolant in the inlet channel 23 and the outlet channel 24, the coolant can effectively absorb the heat generated by the laser crystal 1, and shorten the distance between the inlet channel 23, the outlet channel 24 and the laser crystal 1, reduce the contact thermal resistance, and improve the heat conduction and heat dissipation efficiency.

[0041] See Figure 1 and Figure 7 In some embodiments, the water channel 33 includes a first flow channel 331, a second flow channel 332, and a third flow channel 333. The end of the first flow channel 331 near the base 2 is the input end of the water channel 33 and is connected to the water inlet channel 23. The end of the third flow channel 333 near the base 2 is the output end of the water channel 33 and is connected to the water outlet channel 24. After cooling water is introduced, the cooling water flows sequentially along the first flow channel 331, the second flow channel 332, and the third flow channel 333. In this embodiment, the second flow channel 332 is located on the side of the second limiting groove 32 opposite to the base 2.

[0042] Furthermore, in some embodiments, the first flow channel 331 and the third flow channel 333 are arranged perpendicular to the side wall of the pressure plate 3 facing the base 2 (i.e., the second inclined surface 31), and the length direction of the second flow channel 332 is perpendicular to the length direction of the laser crystal 1.

[0043] Thus, the first flow channel 331, the second flow channel 332 and the third flow channel 333 can cool the corresponding sidewalls of the laser crystal 1, enabling the laser crystal 1 to have multiple heat transfer paths, reducing the total thermal resistance of the heat transfer process, and saving the step of setting up a heat sink on the liquid-cooled laser crystal mounting support, achieving a smaller volume structure with higher heat dissipation efficiency.

[0044] It is understood that multiple second flow channels 332 can be provided, and multiple second flow channels 332 can be arranged in parallel and correspondingly connected to the first flow channel 331 and the third flow channel 333 to increase the cooling area. The number and arrangement position of the first flow channel 331, the second flow channel 332 and the third flow channel 333 can be flexibly adjusted, and will not be listed in detail here. The angles of the first flow channel 331, the second flow channel 332 and the third flow channel 333 can also be flexibly adjusted. In this embodiment, the first flow channel 331 and the third flow channel 333 are arranged perpendicular to the second inclined surface 31, and the second flow channel 332 is arranged perpendicular to the length direction of the laser crystal 1 in order to shorten the heat transfer path.

[0045] See Figure 2 , Figure 3 Hehe Figure 7 In some embodiments, a process hole 34 for processing water channels 33 is provided on one side wall of the pressure plate 3. The process hole 34 is connected to the second flow channel 332. The second flow channel 332 is formed by processing downward to a certain depth through the process hole 34 and is connected to the first flow channel 331 and the third flow channel 333.

[0046] Thus, during processing, only one process hole 34 needs to be opened. A certain depth is processed through the process hole 34 to form a second flow channel 332, and the second flow channel 332 is connected to the first flow channel 331 and the third flow channel 333, so that the water channel 33 inside the pressure plate 3 is connected. Cooling water flows along the first flow channel 331, the second flow channel 332 and the third flow channel 333 inside the water channel to achieve heat dissipation for the laser crystal 1.

[0047] Understandably, the pressure plate 3 only needs to open one additional process hole 34 to complete the processing of the water channel 33. Compared with the existing technology of opening multiple process holes to connect the internal complex water channels, the processing is convenient and the cost is reduced. At the same time, it effectively reduces the risk of cooling water leakage caused by the possible loose sealing due to opening multiple process holes, and improves the sealing performance and service life of the liquid-cooled laser crystal mounting support.

[0048] See Figure 2 , Figure 3 Hehe Figure 7 In some embodiments, the liquid-cooled laser crystal mounting bracket also includes a sealing cover 4, which is detachably connected to the pressure plate 3 and is used to block the process hole 34 so that cooling water does not flow out of the process hole 34.

[0049] Thus, the process hole 34 is connected to the second flow channel 332, which penetrates one side wall of the pressure plate 3. This facilitates the machining of the second flow channel 332 on the pressure plate 3. During further machining, the process hole 34 can be machined downwards to a certain depth to form the second flow channel 332, which is connected to both the first flow channel 331 and the third flow channel 333. By providing the sealing cap 4, the sealing condition of the second flow channel 332 can be easily adjusted according to usage needs, preventing coolant leakage to the outside.

[0050] See Figure 2 , Figure 3 Hehe Figure 7 In some embodiments, the connecting surfaces of the base 2 and the pressure plate 3 are inclined, the second flow channel 332 extends upward and penetrates the side wall of the pressure plate 3, a process hole 34 is opened on the side wall of the pressure plate 3 extending upward, and the sealing cover 4 is inserted into the process hole 34, so that when the sealing cover 4 is located in the groove, the second flow channel 332 is isolated from the outside.

[0051] Thus, by setting the sealing cover 4, the sealing of the second flow channel 332 can be easily adjusted according to the needs of use, preventing coolant from leaking to the outside. At the same time, the inclined setting of the connection surface between the base 2 and the pressure plate 3 allows the cooling water to flow downwards towards the pressure plate 3 under the action of gravity, which also reduces the possibility of cooling water overflowing from the process hole 34, further improving the stability and safety of the liquid-cooled laser crystal mounting support.

[0052] It is understandable that the sealing cover 4 can also be hinged to the pressure plate 3. The connection method between the sealing cover 4 and the pressure plate 3 can be flexibly adjusted to achieve the sealing of the process hole 34, which will not be elaborated here.

[0053] In some embodiments, the process hole 34 can also be sealed by welding.

[0054] In some embodiments, the cross-sectional shape of the water inlet channel 23, the water outlet channel 24, and the waterway 33 can be racetrack-shaped.

[0055] Thus, when the cross-sectional shape of the cooling water channel is racetrack-shaped, the contact area with the liquid-cooled laser crystal mounting bracket is larger than that of other shapes, resulting in more efficient heat transfer and better heat dissipation.

[0056] It is understandable that the cross-sectional shape of the water inlet channel 23, the water outlet channel 24, and the water channel 33 can also be circular, elliptical, square, or any other arbitrary shape, which can be adjusted arbitrarily according to the process and heat dissipation requirements, and will not be elaborated here.

[0057] See Figure 1 and Figure 4 In some embodiments, the liquid-cooled laser crystal mounting bracket further includes multiple sealing rings 5. The sealing rings 5 ​​are disposed at the inlet 231 of the water inlet channel 23 and the outlet 241 of the water outlet channel 24. The sealing rings 5 ​​are also disposed at the connection between the output end of the water inlet channel 23 and the input end of the water channel 33, and at the connection between the input end of the water outlet channel 24 and the output end of the water channel 33. Furthermore, the sealing rings 5 ​​are also disposed between the sealing cover 4 and the pressure plate 3.

[0058] Thus, by setting sealing rings 5 ​​at the connection points of each channel and at the connection point between the sealing cover 4 and the pressure plate 3, the sealing performance of the water inlet channel 23, the water outlet channel 24 and the water channel 33 can be improved, so that the coolant flows along a fixed path, avoiding coolant leakage that would affect the normal operation of the laser crystal 1 and improving the stability of the liquid-cooled laser crystal mounting support.

[0059] It is understood that the sealing ring 5 can be set one-to-one with the water inlet channel 23 and the water outlet channel 24, or a sealing ring 5 can be set at the bottom of the base 2 so that the water inlet channel 23 and the water outlet channel 24 are both located inside the sealing ring 5. The same applies to the sealing ring 5 set between the pressure plate 3 and the base 2. The number and setting position of the sealing ring 5 can be flexibly adjusted, and this embodiment does not limit this.

[0060] See Figure 5 In some embodiments, the liquid-cooled laser crystal mounting bracket further includes an indium foil (not shown in the figure) attached to the groove wall of the first limiting groove 22 and the second limiting groove 32; or, the indium foil covers the outer wall of the laser crystal 1.

[0061] In this way, the indium foil can transfer the heat generated by the laser crystal 1 to the groove wall of the first limiting groove 22 and the groove wall of the second limiting groove 32, thereby further improving the heat conduction and heat dissipation efficiency.

[0062] See Figure 1 In some embodiments, the liquid-cooled laser crystal mounting bracket also includes multiple connectors 6, and the base 2 and the pressure plate 3 are detachably connected by the connectors 6. The multiple connectors 6 are symmetrically arranged on both sides of the water channel 33.

[0063] In this embodiment, the pressure plate 3 has mounting holes 35, and is connected to the base 2 via connectors 6. Four connectors 6 are provided, and the four connectors 6 are respectively located on both sides of the first flow channel 331. The connectors 6 can be bolts.

[0064] Thus, by setting the connector 6, the base 2 and the pressure plate 3 can be quickly assembled, and the water channel 33, the inlet channel 23, and the outlet channel 24 can be easily aligned, allowing the coolant to flow smoothly within the base 2 and the pressure plate 3. The mounting holes 35 and the connector 6 avoid the cooling water channel's sealing performance, preventing coolant leakage.

[0065] It is understandable that the connector 6 can also be a plug on either the pressure plate 3 or the base 2, with a slot provided on the other corresponding plug. The specific structure of the connector 6 is not limited to bolts, as long as it can limit the relative position of the base 2 and the pressure plate 3. No further examples will be listed here.

[0066] See Figure 1 The present invention also provides a solid-state laser, including a liquid-cooled laser crystal mounting bracket and a laser crystal 1 mounted on the liquid-cooled laser crystal mounting bracket, wherein the laser crystal 1 has a quadrangular prism structure, and the sidewalls of the laser crystal 1 abut against the groove walls of the first limiting groove 22 and the groove walls of the second limiting groove 32, respectively.

[0067] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A liquid-cooled laser crystal mounting bracket, characterized in that, The liquid-cooled laser crystal mounting bracket includes: The base (2) has a first limiting groove (22). The base (2) has an inlet channel (23) with an inlet (231) and an outlet channel (24) with an outlet (241). The inlet channel (23) and the outlet channel (24) both penetrate the top and bottom surfaces of the base (2). The inlet (231) and the outlet (241) are both located on the bottom surface of the base (2). The pressure plate (3) is detachably connected to the base (2). The pressure plate (3) has a second limiting groove (32) and a water channel (33) is provided inside the pressure plate (3). The first limiting groove (22) and the second limiting groove (32) enclose a space for accommodating the laser crystal (1), and the water inlet channel (23), the water channel (33), and the water outlet channel (24) are connected to form a cooling circuit surrounding the laser crystal (1).

2. The liquid-cooled laser crystal mounting bracket according to claim 1, characterized in that, The waterway (33) includes a first flow channel (331), a second flow channel (332) and a third flow channel (333). The first flow channel (331) and the third flow channel (333) are connected to the inlet channel (23) and the outlet channel (24) respectively at one end near the base (2), and the other end is connected to the second flow channel (332) respectively.

3. The liquid-cooled laser crystal mounting bracket according to claim 2, characterized in that, The pressure plate (3) has a process hole (34) on one side wall. The process hole (34) is connected to the second flow channel (332). The second flow channel (332) is formed by processing downward through the process hole (34) and is connected to the first flow channel (331) and the third flow channel (333).

4. The liquid-cooled laser crystal mounting bracket according to claim 3, characterized in that, The connection surface between the base (2) and the pressure plate (3) is inclined, and the process hole (34) is provided on the side of the pressure plate (3) extending upward along the inclined direction of the connection surface.

5. The liquid-cooled laser crystal mounting bracket according to claim 3, characterized in that, The liquid-cooled laser crystal mounting bracket also includes a sealing cover (4), which is detachably connected to the process hole (34) and is used to block the process hole (34) so ​​that the cooling water in the water channel (33) does not flow out of the process hole (34); and / or, the process hole (34) is blocked by soldering so that the cooling water in the water channel (33) does not flow out of the process hole (34).

6. The liquid-cooled laser crystal mounting bracket according to claim 1, characterized in that, The cross-sectional shape of the water inlet channel (23), the water channel (33), and the water outlet channel (24) is any one of racetrack shape, circle, ellipse, and square.

7. The liquid-cooled laser crystal mounting bracket according to any one of claims 1-6, characterized in that, The liquid-cooled laser crystal mounting bracket also includes a sealing ring (5), which is disposed at the water inlet (231) of the water inlet channel (23) and the water outlet (241) of the water outlet channel (24); and / or, the sealing ring (5) is disposed at the connection between the output end of the water inlet channel (23) and the input end of the water channel (33), and at the connection between the input end of the water outlet channel (24) and the output end of the water channel (33).

8. The liquid-cooled laser crystal mounting bracket according to any one of claims 1-6, characterized in that, The liquid-cooled laser crystal mounting bracket also includes an indium foil, which is attached to the groove walls of the first limiting groove (22) and the second limiting groove (32); or, the indium foil is provided to cover the outer wall of the laser crystal (1).

9. The liquid-cooled laser crystal mounting bracket according to any one of claims 1-6, characterized in that, The liquid-cooled laser crystal mounting bracket also includes multiple connectors (6). The base (2) and the pressure plate (3) are detachably connected by the connectors (6). The multiple connectors (6) are symmetrically arranged on both sides of the waterway (33).

10. A solid-state laser, characterized in that, Includes the liquid-cooled laser crystal mounting bracket as described in any one of claims 1-9 and the laser crystal (1) mounted on the liquid-cooled laser crystal mounting bracket.

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