Solid-solid phase change heat storage laser and preparation method

Abstract

The present application provides a solid-solid phase change heat storage laser and a preparation method. The present application utilizes a solid-solid phase change material as a temperature control module to avoid volume pressure changes caused by the phase change process, does not generate gas and fluid substances, is not prone to leakage, has high heat storage performance, and is safe and reliable.

Description

Technical Field

[0001] The present application relates to the field of semiconductor laser technology, and in particular to a solid-solid phase change heat storage laser and a preparation method thereof. Background Art

[0002] Traditional water-cooled lasers require a circulating water system, requiring regular replacement and maintenance of components such as the water tank. Water-cooling systems are prone to low-frequency resonance, making them difficult to maintain high dynamic resistance, and water-cooled models are challenging to operate at low temperatures. Traditional air-cooled lasers require reserved air ducts, making them difficult to integrate into weapon systems. Furthermore, the fan and air ducts must be carefully protected from the adverse effects of dust and other elements during weapon operation. Both the fan and the water-cooling system are heavy, posing challenges to weight reduction designs. Summary of the Invention

[0003] The purpose of this application is to provide a solid-solid phase change heat storage laser, which uses solid-solid phase change material as a temperature control module to avoid volume pressure changes caused by the phase change process, is less likely to cause leakage, and has high safety and reliability.

[0004] In a first aspect, the present application provides a solid-solid phase change thermal storage laser, comprising:

[0005] A fiber coil module, the fiber coil module comprising a first accommodating space and a second accommodating space arranged opposite to each other;

[0006] A pump heat storage module, the pump heat storage module comprising a first pump source heat storage module and a second pump source heat storage module, the first pump source heat storage module being disposed in the first accommodation space of the fiber coil module, the second pump source heat storage module being disposed in the second accommodation space of the fiber coil module, the first pump source heat storage module and the second pump source heat storage module being disposed opposite to each other;

[0007] a pump source, the pump source being disposed on the first pump source heat storage module and located inside the first accommodation space;

[0008] a power supply heat storage module, the power supply heat storage module being arranged on a side of the pump source away from the first pump source heat storage module;

[0009] The pump heat storage module and the power supply heat storage module both include solid-solid phase change heat storage materials, and the solid-solid phase change heat storage materials are solid before and after phase change.

[0010] In some possible embodiments, the first pump source heat storage module and the second pump source heat storage module each include a first heat source mounting base, the phase change heat storage material, and a first heat storage cover plate that are stacked together; the first heat source mounting base of the first pump source heat storage module is disposed close to the fiber coil module, and the second heat storage cover plate of the second pump source heat storage module is disposed close to the fiber coil module; the power supply heat storage module includes a second heat source mounting base, the phase change heat storage material, and a second heat storage cover plate that are stacked together; the second heat source mounting base is disposed close to the pump heat storage module;

[0011] The solid-solid phase change heat storage material is composed of a heat conductive support material, a heat storage material and a replacement material. The volume proportion of the heat storage material and the replacement material is greater than 70%. The solid-solid phase change heat storage material can undergo a solid-to-solid phase change within a temperature range of 35°C-75°C.

[0012] In some possible embodiments, the thermally conductive support material is a sponge-like solid formed with dense pores, the thermal conductivity of the thermally conductive support material is greater than 100 W / mk, and the melting point of the thermally conductive support material is greater than 800°C; the heat storage efficiency of the heat storage material is greater than 250 J / g, the thermally conductive support material can undergo chemical covalent bond exchange with the heat storage material to increase the melting point of the heat storage material; and the replacement material can promote a chemical reaction between the thermally conductive support material and the heat storage material.

[0013] In some possible embodiments, a plurality of heat dissipation cylinders and cylindrical steps arranged in an array are formed on a side of the first heat source mounting base and the second heat source mounting base close to the solid-solid phase change heat storage material, the first heat storage cover plate is fixedly connected to the first heat source mounting base via the cylindrical steps, and the second heat storage cover plate is fixedly connected to the second heat source mounting base via the cylindrical steps;

[0014] The plurality of heat dissipation columns start from the central area of ​​the first heat source mounting base / the second heat source mounting base and spread outwards, and the density of the plurality of heat dissipation columns gradually decreases from the inside to the outside.

[0015] In some possible embodiments, a plurality of high thermal conductivity metal strips are further filled between the plurality of heat dissipation cylinders, and the plurality of high thermal conductivity metal strips are inserted into the solid-solid phase change heat storage material to support the solid-solid phase change heat storage material.

[0016] In some possible embodiments, a thermal interface material is filled between the side wall of the pump source and the inner wall of the fiber coil module.

[0017] In some possible embodiments, the thermal interface material is thermal grease.

[0018] In some possible embodiments, the fiber tray module includes four planar side walls and four arc surfaces arranged in pairs opposite to each other, and the four planar side walls and the four arc surfaces enclose the first accommodation space and the second accommodation space;

[0019] The four planar side walls are formed with single-line threads for winding optical fibers, and the four planar side walls include a first planar side wall and a second planar side wall that are oppositely arranged. The first planar side wall and the second planar side wall extend toward the first accommodating space and the second accommodating space, respectively, to obtain two oppositely arranged first step large end faces and second step large end faces, as well as two oppositely arranged first step small end faces and second step small end faces.

[0020] In some possible embodiments, the solid-solid phase change thermal storage laser further includes a control board bracket, a control board, a mold stripper, a coupler, a red light pump, and an optical fiber, wherein the control board bracket is arranged on the large end face of the first step, the control board is arranged on the control board bracket, and the mold stripper, the coupler, the red light pump, and the optical fiber are arranged on the large end face of the second step;

[0021] The solid-solid phase change heat storage laser further includes a housing, the housing including a housing accommodating space, the fiber disk module is located in the housing accommodating space and is connected and fixed to the housing accommodating space via the first stepped small end surface, and the power supply heat storage module is connected and fixed to the housing accommodating space via the second stepped small end surface;

[0022] The solid-solid phase change heat storage laser further includes a power supply, which is arranged above the power supply heat storage module;

[0023] The solid-solid phase change thermal storage laser further includes a top cover, which is located above the power supply and forms a closed space with the housing accommodating space.

[0024] In a second aspect, an embodiment of the present application provides a method for preparing a solid-solid phase change thermal storage laser, the method comprising:

[0025] Providing a fiber coil module, the fiber coil module comprising a first accommodating space and a second accommodating space arranged opposite to each other;

[0026] Providing a plurality of heat storage shells, and processing injection holes on the side walls of the plurality of heat storage shells respectively;

[0027] Heating the solid-solid phase change heat storage material to a preset temperature so that the solid-solid phase change heat storage material becomes liquid;

[0028] Filling the liquid solid-solid phase change heat storage material into the interior of the multiple heat storage shells through the filling holes, and after the liquid solid-solid phase change heat storage material returns to a solid state, sealing the filling holes to obtain a first pump source heat storage module, a second pump source heat storage module, and a power supply heat storage module respectively;

[0029] The first pump source heat storage module is arranged in the first accommodation space, and the second pump source heat storage module is arranged in the second accommodation space;

[0030] Providing a pump source, and arranging the pump source on a side of the first pump source heat storage module away from the fiber coil module;

[0031] The power supply heat storage module is arranged on a side of the pump source away from the fiber coil module.

[0032] The present application provides a solid-solid phase change heat storage laser and a preparation method thereof. The solid-solid phase change heat storage laser comprises: a fiber coil module comprising a first and second accommodating spaces arranged opposite each other; a pump heat storage module comprising a first pump source heat storage module and a second pump source heat storage module, the first pump source heat storage module being disposed in the first accommodating space of the fiber coil module, the second pump source heat storage module being disposed in the second accommodating space of the fiber coil module, the first pump source heat storage module and the second pump source heat storage module being disposed opposite each other; a pump source disposed on the first pump source heat storage module and within the first accommodating space; and a power supply heat storage module disposed on a side of the pump source away from the first pump source heat storage module. Both the pump heat storage module and the power supply heat storage module comprise a solid-solid phase change heat storage material, the solid-solid phase change heat storage material being solid before and after the phase change. The solid-solid phase change heat storage laser provided in the present application utilizes a solid-solid phase change material as a temperature control module, thereby avoiding volume and pressure changes caused by the phase change process, preventing the generation of gas and fluid substances, and being less prone to leakage. The laser exhibits high heat storage performance, safety, and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The following detailed description of the specific embodiments of the present application in conjunction with the accompanying drawings will make the technical solutions and other beneficial effects of the present application apparent.

[0034] Figure 1 This is an exploded diagram of the structure of an embodiment of the solid-solid phase change thermal storage laser provided in an embodiment of the present application;

[0035] Figure 2 A schematic structural diagram of an embodiment of the first pump source heat storage module provided in an embodiment of the present application;

[0036] Figure 3 A schematic diagram of the components of the phase change heat storage material provided in the embodiments of the present application;

[0037] Figure 4A schematic structural diagram of an embodiment of a first heat source mounting base provided in an application embodiment;

[0038] Figure 5 A top view of the first pump source heat storage module provided in an embodiment of the present application;

[0039] Figure 6 A schematic diagram of the structure of the power supply heat storage module and power supply provided in an embodiment of the present application;

[0040] Figure 7 A schematic structural diagram of an embodiment of a fiber tray module provided in an embodiment of the present application;

[0041] Figure 8 A schematic diagram of the appearance of a solid-solid phase change thermal storage laser provided in an embodiment of the present application;

[0042] Figure 9 A schematic structural diagram of the heat storage shell provided in an embodiment of the present application. DETAILED DESCRIPTION

[0043] The present application will be further described in detail below in conjunction with the accompanying drawings and examples. It is particularly noted that the following examples are only intended to illustrate the present application and are not intended to limit the scope of the present application. Similarly, the following examples are only some examples of the present application and are not intended to be exhaustive. All other examples obtained by persons of ordinary skill in the art without creative effort are intended to fall within the scope of protection of the present application.

[0044] In the following description of this application, reference is made to “some embodiments”, which describe a subset of all possible embodiments, but it can be understood that “some embodiments” may be the same subset or different subsets of all possible embodiments, and may be combined with each other without conflict.

[0045] In the following description of this application, the terms "first\second\third" involved are merely used to distinguish similar objects and do not represent a specific ordering of the objects. It can be understood that "first\second\third" can be interchanged with a specific order or sequence where permitted, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application pertains. The terms used herein are for the purpose of describing the embodiments of this application only and are not intended to limit this application.

[0047] The following is a detailed description with reference to specific embodiments. It should be noted that the serial numbers of the following embodiments are not intended to limit the preferred order of the embodiments.

[0048] The present application provides a solid-solid phase change heat storage laser, such as Figure 1 As shown, Figure 1 This is an exploded diagram of the structure of an embodiment of the solid-solid phase change heat storage laser provided in the embodiment of the present application. Figure 1 In the embodiment shown, the solid-solid phase change thermal storage laser mainly includes the following modules:

[0049] The fiber coil module 10 includes a first accommodating space 101 and a second accommodating space 102 that are arranged opposite to each other.

[0050] The pump heat storage module 20 includes a first pump heat storage module 201 and a second pump heat storage module 202. The first pump heat storage module 201 is arranged in the first accommodation space 101 of the fiber coil module 10, and the second pump heat storage module 202 is arranged in the second accommodation space 102 of the fiber coil module 10, and the first pump heat storage module 201 and the second pump heat storage module 202 are arranged opposite to each other.

[0051] The pump source 30 is disposed on the first pump heat storage module 201 and is located inside the first accommodation space 101 .

[0052] The power supply heat storage module 40 is disposed on a side of the pump source 30 away from the first pump heat storage module 201 .

[0053] In the embodiment of the present application, both the pump heat storage module 20 and the power supply heat storage module 40 include solid-solid phase change heat storage materials, and the solid-solid phase change heat storage materials are solid before and after the phase change.

[0054] The present application provides a solid-solid phase change heat storage laser, comprising: a fiber coil module comprising a first and second accommodating spaces arranged opposite each other; a pump heat storage module comprising a first pump source heat storage module and a second pump source heat storage module, the first pump source heat storage module being disposed in the first accommodating space of the fiber coil module, the second pump source heat storage module being disposed in the second accommodating space of the fiber coil module, the first pump source heat storage module and the second pump source heat storage module being disposed opposite each other; a pump source disposed on the first pump source heat storage module and within the first accommodating space; and a power supply heat storage module disposed on a side of the pump source away from the first pump source heat storage module. Both the pump heat storage module and the power supply heat storage module include solid-solid phase change heat storage material, the solid-solid phase change heat storage material being solid before and after the phase change. The solid-solid phase change heat storage laser provided in the present application utilizes solid-solid phase change material as a temperature control module, thereby avoiding volume and pressure changes caused by the phase change process, preventing the generation of gas and fluid substances, and being less prone to leakage. The laser exhibits high heat storage performance, safety, and reliability.

[0055] The pump heat storage module 20 provided in the embodiment of the present application is mainly used to absorb the heat emitted by the pump source 30 during operation, and can also absorb the heat generated by the fiber coil module 10 during operation. The pump heat storage module 20 in the present application includes two oppositely arranged first pump heat storage modules 201 and second pump heat storage modules 202, both of which have the same structure, which will be described in detail below with reference to the accompanying drawings. Figure 2 The figure shows a schematic structural diagram of an embodiment of the first pump source heat storage module provided in the embodiment of the present application. Figure 2 In the illustrated embodiment, the first pump heat storage module 201 includes a stacked first heat source mounting base 201-1, a phase change heat storage material 201-2, and a first heat storage cover plate 201-3. The first heat source mounting base 201-1 is positioned near the top of the fiber coil module 10 and within the first accommodation space. The first heat storage cover plate in the second heat storage module 202 is positioned near the bottom of the fiber coil module 10. While the structure of the first pump heat storage module 201 and the second pump heat storage module 202 are identical, their positions within the laser are completely opposite, and they are positioned opposite each other. Furthermore, in the embodiment of the present application, the structure of the power supply heat storage module 40 is similar to that of the first pump heat storage module 201, similarly including a stacked second heat source mounting base, a phase change heat storage material, and a second heat storage cover plate. The second heat source mounting base is positioned above the pump heat storage module 20, with the second heat source mounting base positioned near the pump heat storage module 20 and the second heat storage cover plate positioned away from the pump heat storage module.

[0056] In the embodiment of the present application, the solid-solid phase change heat storage material is mainly composed of three components: heat conductive support material A, heat storage material B and replacement material C. Figure 3 The figure shows the components of the phase change heat storage material provided in the embodiment of the present application. Figure 3In the embodiment, the heat-conducting support material is a sponge-like solid as a whole and has dense pores, while the heat storage material B and the replacement material C are filled in the pores inside the heat-conducting support material A. The heat-conducting support material A as a whole also plays a supporting role to prevent the heat storage material B and the replacement material C from moving and affecting the heat storage effect. The thermal conductivity of the heat-conducting support material A in this application is greater than 100 watts / meter Kelvin (W / mk), and the melting point of the heat-conducting support material A is greater than 800°C. The heat storage material B is a heat storage body in a solid state at room temperature, and the heat storage efficiency is greater than 250 joules / gram (J / g). The heat-conducting support material A also has the ability to covalently exchange some of the chemical bonds with the heat storage material, which greatly increases the melting point of the mixed heat storage material, has a better heat absorption effect, and can ensure that the heat storage material remains in a solid state. The replacement material in this application can promote a chemical reaction between the heat-conducting support material and the heat storage material at a certain critical temperature point. Specifically, during laser operation, the temperature will continue to rise, and the heat-conducting support material and heat storage material in the solid-solid phase change heat storage material will continuously absorb heat to cool the laser. When a certain critical temperature point is reached, the replacement material in the solid-solid phase change heat storage material will promote the chemical reaction between the heat-conducting support material and the heat storage material, thereby enhancing the heat absorption effect of both. It should be noted that the three components of the solid-solid phase change heat storage material in this application remain in a solid state before and after heat absorption. Through the combination of these three materials, the solid-solid phase change heat storage material can undergo a solid-to-solid phase transition within a temperature range of 35°C-75°C, and remains in a solid state after absorbing heat. Therefore, the solid-solid phase change heat storage material provided in this application is suitable for low-power solid-solid phase change heat storage lasers. It can achieve stable heat absorption in a solid state for laser heat sources controlled at a temperature of 50°C-90°C, without generating liquid or gas. Compared with traditional solid-liquid or liquid-gas phase change materials, it has higher reliability. In this application, the volume proportion of the heat storage material B and the replacement material C reaches more than 70%.

[0057] like Figure 4 The figure shows a schematic structural diagram of an embodiment of the first heat source mounting base provided in the embodiment of the present application. Figure 4In the illustrated embodiment, a plurality of heat dissipation cylinders 201-1-1 and cylindrical steps 201-1-2 are arranged in an array on one side of the first heat source mounting base 201-1, near the solid-solid phase change heat storage material. The first heat source mounting base 201-1 includes a planar side surface that directly contacts the fiber coil module 10, and a sidewall perpendicular to the planar side surface. The plurality of heat dissipation cylinders 201-1-1 and the plurality of cylindrical steps 201-1-2 are formed on the planar side surface of the first heat source mounting base 201-1. The plurality of cylindrical steps are threaded, and corresponding threaded holes are formed on the first heat storage cover plate 201-3. The corresponding threads and threaded holes allow the first heat storage cover plate 201-3 to be mounted above the first heat storage mounting base 201-1. Furthermore, the first heat storage cover plate 201-3 and the first heat source mounting base 201-1 can be welded together along their outer edges to prevent displacement of the solid-solid phase change heat storage material between them, which could affect the heat storage function.

[0058] In the above embodiment, the plurality of heat dissipation cylinders can be evenly distributed on the plane of the first heat source mounting base 201-1; or they can be spread outward from the central area of ​​the first heat source mounting base 201-1 as a starting point, and the density of the plurality of heat dissipation cylinders gradually decreases from the inside to the outside. This is because in an actual solid-solid phase change heat storage laser, the degree of heat generation at different positions is not the same, so the density of the heat dissipation cylinders can be set according to actual needs to better store heat. As for the cylindrical steps connecting the first heat source mounting base 201-1 and the first heat storage cover plate 201-3, they can be set at the edge of the first heat source mounting base 201-1 or at the center of the first heat source mounting base 201-1; the specific number and position of the cylindrical steps can be set according to actual needs and are not limited in this application.

[0059] In an embodiment of the present application, multiple high thermal conductivity metal strips can be further filled between the multiple heat dissipation cylinders, and the multiple high thermal conductivity metal strips can be inserted into the solid-solid phase change heat storage material to support the solid-solid phase change heat storage material. At the same time, due to the high thermal conductivity of the high thermal conductivity metal strips, heat can be better transferred to the solid-solid phase change heat storage material for better heat storage. In order to achieve the support effect and heat conduction effect of the high thermal conductivity metal strips, the high thermal conductivity metal strips in this application generally need to be made of metals with higher hardness, such as copper, aluminum, etc., which are not limited in this application.

[0060] In other embodiments, in addition to the aforementioned multiple heat dissipation cylinders, an array with polyhedrons as units and an array with prisms as units can also be set on the first heat source mounting base 201-1; multiple heat dissipation cylinders, multiple polyhedrons, and multiple prisms can be arranged in a cross-spaced manner, or they can form cylindrical units, polyhedron units, and prism units, with units as the minimum structure arranged on the first heat source mounting base 201-1. The polyhedrons and prisms in this application have the same function as the heat dissipation cylinders, and all play the role of heat dissipation. The positions of the aforementioned heat dissipation cylinders, polyhedrons, and prisms usually need to avoid the cylindrical steps.

[0061] It should be noted that the structures of the first pump source heat storage module 201 and the second pump source heat storage module 202 in this application are the same, so the structure of the second pump source heat storage module can refer to the above content and will not be repeated here. At the same time, in the embodiment of this application, for the first pump source heat storage module 201, reinforcing ribs can be provided above the first heat storage cover plate 201-3 to better support the pump source. Figure 5 The figure shows a top view of the first pump source heat storage module provided in the embodiment of the present application. Figure 5 in Figure 2 On the basis of the structure shown, a field-shaped reinforcement rib is further provided above the first pump source heat storage module 201 .

[0062] As for the power supply heat storage module, the structure of the power supply heat storage module is similar to that of the first pump source heat storage module 201, and also includes a second heat source mounting base, a phase change heat storage material, and a second heat storage cover plate arranged in a stacked manner. The second heat source mounting base is arranged close to the pump source heat storage module. The solid-solid phase change heat storage laser provided in this application also includes a power supply 50, which is arranged above the power supply heat storage module; and the second heat storage cover plate has no additional reinforcement ribs, but is punched with holes to install the power supply 50. Figure 6 The figure shows the structure of the power supply heat storage module and power supply provided in the embodiment of the present application. Figure 6 In the embodiment, the power supply 50 includes a plurality of sub-power supplies arranged in an array, and the plurality of sub-power supplies are arranged above the second heat storage cover plate.

[0063] like Figure 7 The figure shows a schematic diagram of the structure of a fiber tray module according to an embodiment of the present application. Figure 7 In the illustrated embodiment, the fiber coiling module comprises four planar sidewalls and four arc-shaped surfaces, arranged in pairs, that enclose a first and second storage space. Furthermore, the four planar sidewalls are formed with single-threaded threads that serve as winding grooves for the optical fiber coils. When the pump source is installed in the first storage space, the interface between the pump source's sidewalls and the inner walls of the fiber coiling module 10 can be filled with a thermal interface material to further absorb heat. In some embodiments, this thermal interface material can be thermally conductive silicone grease.

[0064] Please refer to Figure 7 The four planar side walls of the fiber tray module include two longer side walls and two shorter side walls, wherein the two relatively longer side walls are the first planar side wall and the second planar side wall, respectively. The first planar side wall and the second planar side wall extend toward the first accommodation space and the second accommodation space, respectively, to obtain two relatively arranged first step large end faces 103 and second step large end faces 104, as well as first step small end faces 105 and second step small end faces 106. Please refer to Figure 1 The solid-solid phase change heat storage laser provided in this application also includes a control board bracket 60, a control board, a mold stripper, a coupler, a red light pump, an optical fiber and other functional modules. The control board bracket 50 is arranged on the first step large end surface 103, and the control board is arranged on the control board bracket; and the mold stripper, coupler, red light pump and optical fiber and other functional modules are arranged on the second step large end surface 104.

[0065] exist Figure 1 In the embodiment shown, the solid-solid phase change heat storage laser also includes a shell 70, which is composed of a base frame and five end cover plates to form a shell accommodating space. The five end cover plates can be processed to form through holes for light output and power supply, and the output optical cable and optical cable head of the laser can be placed on one of the end cover plates. The fiber disk module 10 is located inside the shell accommodating space and is connected and fixed to the bottom of the shell accommodating space through the first step small end face 105. The power supply heat storage module is connected and fixed to the shell accommodating space through the second step small end face 106. The solid-solid phase change heat storage laser also includes a shell top cover 80, which is located above the power supply and forms a closed space with the shell accommodating space, ultimately forming a complete solid-solid phase change heat storage laser. As shown Figure 8 , which is a schematic diagram of the appearance of the solid-solid phase change thermal storage laser provided in an embodiment of the present application.

[0066] The present application also provides a method for preparing a solid-solid phase change thermal storage laser, which mainly includes:

[0067] A fiber coil module is provided, which includes a first accommodating space and a second accommodating space arranged opposite to each other; a plurality of heat storage shells are provided, and injection holes are respectively processed on the side walls of the plurality of heat storage shells; a solid-solid phase change heat storage material is heated to a preset temperature so that the solid-solid phase change heat storage material becomes liquid.

[0068] The liquid solid-solid phase change heat storage material is poured into the interior of multiple heat storage shells through the pouring holes. After the liquid solid-solid phase change heat storage material returns to a solid state, the pouring holes are sealed to obtain a first pump source heat storage module, a second pump source heat storage module and a power supply heat storage module respectively.

[0069] The first pump source heat storage module is arranged inside the first accommodation space, and the second pump source heat storage module is arranged inside the second accommodation space; a pump source is provided, and the pump source is arranged on the side of the first pump source heat storage module away from the fiber coil module; the power supply heat storage module is arranged on the side of the pump source away from the fiber coil module.

[0070] like Figure 9 The figure shows the structure of the heat storage shell provided in the embodiment of the present application. Figure 9 In the process, the solid-solid phase change heat storage material can be heated to above 200°C to change the solid phase change heat storage material into a liquid state, and the filling tool is connected to the filling hole on the heat storage shell to fill the liquid phase change heat storage material into the interior of the heat storage shell. After standing still for 30 minutes to 2 hours, the liquid solid-solid phase change heat storage material returns to a solid state. At this time, the filling hole can be sealed using a soft soldering process to obtain a first pump source heat storage module, a second pump source heat storage module and a power supply heat storage module. The solid-solid phase change heat storage laser provided in this application is suitable for medium and low power lasers. It does not require an air duct and an external circulation refrigeration system, and the phase change material can remain in a solid state all the time. It will not leak due to overpressure in the containment chamber caused by similar liquid-gas phase changes. It has the characteristics of high heat storage efficiency, high safety and reliability.

[0071] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0072] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present application shall be included in the scope of protection of the present application. The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A solid-solid phase change thermal storage laser, characterized in that: include: A fiber coil module, the fiber coil module comprising a first accommodating space and a second accommodating space arranged opposite to each other; A pump heat storage module, the pump heat storage module comprising a first pump source heat storage module and a second pump source heat storage module, the first pump source heat storage module being disposed in the first accommodation space of the fiber coil module, the second pump source heat storage module being disposed in the second accommodation space of the fiber coil module, the first pump source heat storage module and the second pump source heat storage module being disposed opposite to each other; a pump source, the pump source being disposed on the first pump source heat storage module and located inside the first accommodation space; a power supply heat storage module, the power supply heat storage module being arranged on a side of the pump source away from the first pump source heat storage module; The pump heat storage module and the power supply heat storage module both include solid-solid phase change heat storage materials, and the solid-solid phase change heat storage materials are solid before and after the phase change; The first pump source heat storage module and the second pump source heat storage module each include a first heat source mounting base, the phase change heat storage material, and a first heat storage cover plate arranged in a stacked manner. The first heat source mounting base of the first pump source heat storage module is arranged close to the fiber coil module, and the second heat storage cover plate of the second pump source heat storage module is arranged close to the fiber coil module. The power supply heat storage module includes a second heat source mounting base, the phase change heat storage material, and a second heat storage cover plate arranged in a stacked manner. The second heat source mounting base is arranged close to the pump source heat storage module. The solid-solid phase change heat storage material is composed of a heat conductive support material, a heat storage material and a replacement material, wherein the volume proportion of the heat storage material and the replacement material is greater than 70%. The solid-solid phase change heat storage material can undergo a solid-to-solid phase change within a temperature range of 35°C to 75°C. A plurality of heat dissipation cylinders and cylindrical steps arranged in an array are formed on the side of the first heat source mounting base and the second heat source mounting base close to the solid-solid phase change heat storage material; the first heat storage cover plate is fixedly connected to the first heat source mounting base via the cylindrical steps, and the second heat storage cover plate is fixedly connected to the second heat source mounting base via the cylindrical steps; The plurality of heat dissipation columns start from the central area of ​​the first heat source mounting base / the second heat source mounting base and spread outwards, and the density of the plurality of heat dissipation columns gradually decreases from the inside to the outside.

2. The solid-solid phase change thermal storage laser according to claim 1, characterized in that: The thermally conductive support material is a sponge-like solid with dense pores. The thermal conductivity of the thermally conductive support material is greater than 100 W / mK, and the melting point of the thermally conductive support material is greater than 800°C. The heat storage efficiency of the heat storage material is greater than 250 J / g. The thermally conductive support material can undergo chemical covalent bond exchange with the heat storage material to increase the melting point of the heat storage material. The replacement material can promote a chemical reaction between the thermally conductive support material and the heat storage material.

3. The solid-solid phase change thermal storage laser according to claim 1, characterized in that: A plurality of high thermal conductivity metal strips are further filled between the plurality of heat dissipation cylinders, and the plurality of high thermal conductivity metal strips are inserted into the solid-solid phase change material to support the solid-solid phase change material.

4. The solid-solid phase change thermal storage laser according to claim 1, characterized in that: The space between the side wall of the pump source and the inner wall of the fiber coil module is filled with a thermal interface material.

5. The solid-solid phase change thermal storage laser according to claim 4, characterized in that: The thermal interface material is thermal grease.

6. The solid-solid phase change thermal storage laser according to claim 1, characterized in that: The fiber tray module includes four planar side walls and four arc surfaces arranged in pairs, and the four planar side walls and the four arc surfaces enclose the first accommodation space and the second accommodation space; The four planar side walls are formed with single-line threads for winding optical fibers, and the four planar side walls include a first planar side wall and a second planar side wall that are oppositely arranged. The first planar side wall and the second planar side wall extend toward the first accommodating space and the second accommodating space, respectively, to obtain two oppositely arranged first step large end faces and second step large end faces, as well as two oppositely arranged first step small end faces and second step small end faces.

7. The solid-solid phase change thermal storage laser according to claim 6, characterized in that: The solid-solid phase change heat storage laser further includes a control board bracket, a control board, a stripper, a coupler, a red light pump, and an optical fiber. The control board bracket is arranged on the large end face of the first step, the control board is arranged on the control board bracket, and the stripper, the coupler, the red light pump, and the optical fiber are arranged on the large end face of the second step. The solid-solid phase change heat storage laser further includes a housing, the housing including a housing accommodating space, the fiber disk module is located in the housing accommodating space and is connected and fixed to the housing accommodating space via the first stepped small end surface, and the power supply heat storage module is connected and fixed to the housing accommodating space via the second stepped small end surface; The solid-solid phase change heat storage laser further includes a power supply, which is arranged above the power supply heat storage module; The solid-solid phase change thermal storage laser further includes a top cover, which is located above the power supply and forms a closed space with the housing accommodating space.

8. A method for preparing a solid-solid phase change thermal storage laser, characterized in that: The preparation method is used to prepare the solid-solid phase change thermal storage laser according to claims 1-7, and the method comprises: Providing a fiber coil module, the fiber coil module comprising a first accommodating space and a second accommodating space arranged opposite to each other; Providing a plurality of heat storage shells, and processing injection holes on the side walls of the plurality of heat storage shells respectively; Heating the solid-solid phase change heat storage material to a preset temperature so that the solid-solid phase change heat storage material becomes liquid; Filling the liquid solid-solid phase change heat storage material into the interior of the multiple heat storage shells through the filling holes, and after the liquid solid-solid phase change heat storage material returns to a solid state, sealing the filling holes to obtain a first pump source heat storage module, a second pump source heat storage module, and a power supply heat storage module respectively; The first pump source heat storage module is arranged in the first accommodation space, and the second pump source heat storage module is arranged in the second accommodation space; Providing a pump source, and arranging the pump source on a side of the first pump source heat storage module away from the fiber coil module; The power supply heat storage module is arranged on a side of the pump source away from the fiber coil module.

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