Solid-solid phase change heat storage laser and preparation method thereof

Abstract

According to the solid-solid phase change heat storage laser and the preparation method, the solid-solid phase change material is used as a temperature control module, the volume pressure change caused in the phase change process is avoided, gas and fluid substances are not generated, the leakage condition is not prone to occurring, and the solid-solid phase change heat storage laser has high heat storage performance and is high in safety and reliability.

Description

Technical Field

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

[0002] Traditional water-cooled lasers need to be equipped with a circulating water system, and parts such as water tanks need to be regularly replaced and maintained. Water-cooled systems are prone to low-frequency resonance, making it difficult to have high dynamic resistance, and it is difficult to use water-cooled models at low temperatures; traditional air-cooled lasers require reserved air ducts, which makes it difficult to achieve a highly integrated design in weapon systems, and fans and air ducts need to focus on avoiding adverse effects such as sand and dust during weapon applications. Both fans and water-cooled machines have a certain weight, which poses a challenge to weight reduction design. Summary of the invention

[0003] The purpose of the present 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 not prone to 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 coiling module, the fiber coiling 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 arranged in a first accommodation space of the coiled fiber module, the second pump source heat storage module being arranged in a second accommodation space of the coiled fiber module, the first pump source heat storage module and the second pump source heat storage module being arranged opposite to each other;

[0007] A pump source, the pump source is arranged on the first pump source heat storage module and is located inside the first accommodation space;

[0008] A power source heat storage module, wherein the power source heat storage module is 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 the phase change.

[0010] In some possible embodiments, the first pump source heat storage module and the second pump source heat storage module both include a first heat source mounting base, the phase change heat storage material and a first heat storage cover plate which are stacked, 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 the second heat storage cover plate which are stacked, and the second heat source mounting base is arranged close to the pump heat storage module;

[0011] The solid-solid phase change heat storage material consists 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 and is 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; the replacement material can promote the 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 cylinder steps arranged in an array are formed on the first heat source mounting base and the second heat source mounting base on one side 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 cylinder step, and the second heat storage cover plate is fixedly connected to the second heat source mounting base via the cylinder step;

[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 outward, 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 thermally conductive 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 coil module includes four planar side walls and four arc surfaces arranged opposite to each other in pairs, 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 a single-line thread for winding the optical fiber, and the four planar side walls include a first planar side wall and a second planar side wall that are oppositely arranged, and 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, and two oppositely arranged first step small end faces and second step small end faces.

[0020] In some possible embodiments, 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;

[0021] The solid-solid phase change heat storage laser further includes a housing, the housing includes a housing accommodating space, the fiber coil module is located in the housing accommodating space and is connected and fixed to the housing accommodating space via the first step small end surface, and the power supply heat storage module is connected and fixed to the housing accommodating space via the second step 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 coiling module, the fiber coiling 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 changes into a liquid state;

[0028] Filling the liquid solid-solid phase change heat storage material into 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, plugging 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 inside the first accommodation space, and the second pump source heat storage module is arranged inside 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, wherein the solid-solid phase change heat storage laser comprises: a fiber coil module, comprising a first accommodating space and a second accommodating space arranged relatively; a pump heat storage module, comprising a first pump source heat storage module and a second pump source heat storage module, wherein the first pump source heat storage module is arranged in the first accommodating space of the fiber coil module, and the second pump source heat storage module is arranged in the second accommodating space of the fiber coil module, and the first pump source heat storage module and the second pump source heat storage module are arranged relatively; a pump source is arranged on the first pump source heat storage module and is located inside the first accommodating space; a power supply heat storage module is arranged on the pump source at a side 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, and the solid-solid phase change heat storage material is solid before and after the phase change. The solid-solid phase change heat storage laser provided by the present application utilizes a solid-solid phase change material as a temperature control module, avoids the volume pressure change 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The technical solution and other beneficial effects of the present application will be made apparent by describing in detail the specific implementation methods of the present application in conjunction with the accompanying drawings.

[0034] 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;

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

[0039] Figure 6 A schematic diagram of the structure of a power supply heat storage module and a 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] Fig. 9 A schematic diagram of the structure of the heat storage shell provided in an embodiment of the present application. DETAILED DESCRIPTION

[0043] The present application is further described in detail below in conjunction with the accompanying drawings and examples. It is particularly noted that the following examples are only used to illustrate the present application, but are not intended to limit the scope of the present application. Similarly, the following examples are only some embodiments of the present application rather than all embodiments, and all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of this application.

[0044] In the following description of the present 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 the present 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 here can be implemented in an order other than that illustrated or described here.

[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein are only for the purpose of describing the embodiments of this application 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 view of the structure of an embodiment of the solid-solid phase change thermal 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 coiling module 10 includes a first accommodating space 101 and a second accommodating space 102 which are arranged opposite to each other.

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

[0051] The pump source 30 is disposed on the first pumped 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 accommodating space and a second accommodating space arranged relatively; 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 is arranged in the first accommodating space of the fiber coil module, the second pump source heat storage module is arranged 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 are arranged relatively; a pump source is arranged on the first pump source heat storage module and is located inside the first accommodating space; a power supply heat storage module is arranged on the pump source and is away from the first pump source heat storage module on one side; 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 solid-solid phase change heat storage laser provided by the present application uses solid-solid phase change materials as a temperature control module to avoid volume pressure changes caused by the phase change process, does not produce gas and fluid substances, is not prone to leakage, has high heat storage performance, and is safe and reliable.

[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 when it is working, and can also absorb the heat of the fiber coil module 10 when it is working. The pump heat storage module 20 in the present application includes two relatively arranged first pump heat storage modules 201 and second pump heat storage modules 202, and the structures of the two are the same, which are described in detail below in conjunction with the accompanying drawings. Figure 2 FIG. 1 is a schematic diagram of a first pump source heat storage module according to an embodiment of the present application. Figure 2 In the embodiment shown, the first pump heat storage module 201 includes a first heat source installation base 201-1, a phase change heat storage material 201-2 and a first heat storage cover plate 201-3 which are stacked; wherein, the first heat source installation base 201-1 is arranged near the top of the fiber coil module 10 and is located inside the first accommodation space. The first heat storage cover plate in the second heat storage module 202 is arranged near the bottom of the fiber coil module 10, that is, although the structure of the first pump source heat storage module 201 is the same as that of the second pump source heat storage module 202, the positions of the two in the laser are completely opposite, and the two are arranged relative to each other. At the same time, in the embodiment of the present application, the structure of the power supply heat storage module 40 is also similar to that of the first pump source heat storage module 201, and also includes a second heat source installation base, a phase change heat storage material and a second heat storage cover plate which are stacked; and the second heat source installation base is arranged above the pump heat storage module 20, that is, the second heat source installation base is arranged near the pump heat storage module 20, and the second heat storage cover plate is arranged 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 is a schematic diagram of the components of the phase change heat storage material provided in the embodiment of the present application. Figure 3In the embodiment, the heat conduction 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 conduction support material A. The heat conduction 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 conduction support material A in the present application is greater than 100 Watts / meter Kelvin (W / mk), and the melting point of the heat conduction 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 conduction support material A also has the ability to covalently exchange some 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 the present application can promote the chemical reaction of the heat conduction support material and the heat storage material at a certain critical temperature point; specifically, the temperature will continue to rise during the operation of the laser, and the heat conduction support material and the heat storage material in the solid-solid phase change heat storage material will continue to absorb heat to cool the laser. When a certain critical temperature point is reached, the replacement substance in the solid-solid phase change heat storage material will promote the chemical reaction of the heat conduction support material and the heat storage material, thereby enhancing the heat absorption effect of both. It should be noted that the three components in the solid-solid phase change heat storage material in the present application remain solid 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 change in the temperature range of 35°C-75°C; it remains solid after absorbing heat. Therefore, the solid-solid phase change heat storage material provided in the present application is suitable for low-power solid-solid phase change heat storage lasers, and can achieve stable heat absorption in a solid state for laser heat sources with a temperature controlled at 50°C-90°C, without producing liquid or gas; compared with traditional solid-liquid and liquid-gas phase change materials, it has higher reliability. In the present application, the volume proportion of the heat storage material B and the replacement material C reaches more than 70%.

[0057] like Figure 4 FIG. 1 is a schematic diagram of the structure of an embodiment of the first heat source mounting base provided in the present application. Figure 4In the illustrated embodiment, a plurality of heat dissipation cylinders 201-1-1 and cylindrical steps 201-1-2 arranged in an array are formed on one side of the first heat source mounting base 201-1 close to the solid-solid phase change heat storage material. The first heat source mounting base 201-1 includes a side plane directly in contact with the fiber coil module 10, and a side wall perpendicular to the aforementioned plane; a plurality of heat dissipation cylinders 201-1-1 and a plurality of cylindrical steps 201-1-2 are formed on a side plane of the first heat source mounting base 201-1. Among them, threads are formed on the plurality of cylindrical steps, and corresponding threaded holes are formed on the first heat storage cover plate 201-3. Through the corresponding threads and threaded holes, the first heat storage cover plate 201-3 can be installed above the first heat storage mounting base 201-1; at the same time, the first heat storage cover plate 201-3 and the first heat source mounting base 201-1 can be welded together along the outer edges of the first heat storage cover plate 201-3 and the first heat source mounting base 201-1 to avoid displacement of the solid-solid phase change heat storage material between the two and affect the heat storage function.

[0058] In the above embodiment, a 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 the 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, a plurality of high thermal conductivity metal strips can be further filled between the plurality of heat dissipation cylinders, and the plurality of 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, since the high thermal conductivity metal strips have a high thermal conductivity effect, heat can be better transferred to the solid-solid phase change heat storage material for better heat storage. In order to achieve the supporting effect and heat conduction effect of the high thermal conductivity metal strips, the high thermal conductivity metal strips in the present application usually need to be made of metals with higher hardness, such as copper, aluminum, etc., which are not limited in the present application.

[0060] In other embodiments, in addition to the aforementioned plurality of heat dissipation cylinders, an array with polyhedrons as units and an array with prisms as units may also be provided on the first heat source mounting base 201-1; a plurality of heat dissipation cylinders, a plurality of polyhedrons and a plurality of prisms may be arranged crosswise and at intervals, or may form cylindrical units, polyhedron units and prism units, and the units are arranged on the first heat source mounting base 201-1 as the minimum structure. The polyhedrons and prisms in this application have the same function as the heat dissipation cylinders, and both play the role of heat dissipation. The positions of the aforementioned heat dissipation cylinders, polyhedrons and prisms usually need to avoid the cylindrical step setting.

[0061] It should be noted that the first pump source heat storage module 201 and the second pump source heat storage module 202 in the present application have the same structure, 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 the present 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 , which is 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 reinforcing rib is further provided above the first pump source heat storage module 201 .

[0062] 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, and 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 the present 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 to install the power supply 50. Figure 6 The figure is a schematic diagram of the structure of the power supply heat storage module and the power supply provided in the embodiment of the present application. Figure 6 In the embodiment, the power source 50 includes a plurality of sub-power sources arranged in an array, and the plurality of sub-power sources are disposed above the second heat storage cover plate.

[0063] like Figure 7 FIG. 1 is 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 coil module includes four planar side walls and four arc surfaces arranged opposite to each other, and the four planar side walls and the four arc surfaces enclose a first accommodation space and a second accommodation space. At the same time, single-line threads are formed on the four planar side walls as winding grooves of the optical fiber coil to wind the optical fibers. When the pump source is installed in the first accommodation space, the side wall of the pump source and the inner wall of the fiber coil module 10 can also be filled with a thermal interface material to further absorb heat. In some embodiments, the thermal interface material can be thermal 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 respectively the first planar side wall and the second planar side wall, and the first planar side wall and the second planar side wall extend toward the first accommodation space and the second accommodation space respectively, thereby obtaining 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 the present 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 illustrated embodiment, 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 coil module 10 is located inside the shell accommodating space and is connected and fixed to the bottom of the shell accommodating space via the first step small end face 105. The power supply heat storage module is connected and fixed to the shell accommodating space via 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. Figure 8 , which is a schematic diagram of the appearance of the solid-solid phase change heat 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 coiling module is provided, which includes a first accommodating space and a second accommodating space that are arranged opposite to each other; a plurality of heat storage shells are provided, and injection holes are processed on the side walls of the plurality of heat storage shells respectively; 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 blocked 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 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.

[0070] like Fig. 9 , which is a schematic diagram of the structure of the heat storage shell provided in the embodiment of the present application. Fig. 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 connected to the filling hole on the heat storage shell through a filling tool to pour the liquid phase change heat storage material into the interior of the heat storage shell. After standing still for 30min-2h, the liquid solid-solid phase change heat storage material returns to a solid state. At this time, a soft soldering process can be used to seal the filling hole 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 the present 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 liquid-gas phase change. 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 emphasis. 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 substitutions and improvements made within the spirit and principles of the present application shall be included in the protection scope 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 substitutions and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A solid-solid phase change thermal storage laser, characterized in that: include: A fiber coiling module, the fiber coiling 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 arranged in a first accommodation space of the coiled fiber module, the second pump source heat storage module being arranged in a second accommodation space of the coiled fiber module, the first pump source heat storage module and the second pump source heat storage module being arranged opposite to each other; A pump source, the pump source is arranged on the first pump source heat storage module and is located inside the first accommodation space; A power source heat storage module, wherein the power source heat storage module is 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.

2. The solid-solid phase change thermal storage laser according to claim 1, characterized in that: The first pump source heat storage module and the second pump source heat storage module both include a first heat source installation base, the phase change heat storage material and a first heat storage cover plate which are stacked, the first heat source installation base of the first pump source heat storage module is arranged close to the coiled fiber module, and the second heat storage cover plate of the second pump source heat storage module is arranged close to the coiled fiber module; the power supply heat storage module includes a second heat source installation base, the phase change heat storage material and the second heat storage cover plate which are stacked, and the second heat source installation base is arranged close to the pump heat storage module; The solid-solid phase change heat storage material consists 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.

3. The solid-solid phase change thermal storage laser according to claim 2, characterized in that: The thermally conductive support material is a sponge-like solid and is 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 exchange chemical covalent bonds with the heat storage material to increase the melting point of the heat storage material. The replacement material can promote the chemical reaction between the thermally conductive support material and the heat storage material.

4. The solid-solid phase change thermal storage laser according to claim 2, characterized in that: A plurality of heat dissipation cylinders and cylinder steps arranged in an array are formed on the first heat source mounting base and the second heat source mounting base on one side 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 cylinder steps, and the second heat storage cover plate is fixedly connected to the second heat source mounting base via the cylinder 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 outward, and the density of the plurality of heat dissipation columns gradually decreases from the inside to the outside.

5. The solid-solid phase change thermal storage laser according to claim 2, characterized in that: A plurality of high thermal conductivity metal strips are also 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.

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

7. The solid-solid phase change thermal storage laser according to claim 1, characterized in that: The thermal interface material is thermally conductive silicone grease.

8. The solid-solid phase change thermal storage laser according to claim 1, characterized in that: The fiber coil module comprises four planar side walls and four arc surfaces arranged opposite to each other 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 a single-line thread for winding the optical fiber, and the four planar side walls include a first planar side wall and a second planar side wall that are oppositely arranged, and 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, and two oppositely arranged first step small end faces and second step small end faces.

9. The solid-solid phase change thermal storage laser according to claim 8, characterized in that: The solid-solid phase change heat storage laser further comprises 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 includes a housing accommodating space, the fiber coil module is located in the housing accommodating space and is connected and fixed to the housing accommodating space via the first step small end surface, and the power supply heat storage module is connected and fixed to the housing accommodating space via the second step 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 heat storage laser further includes a top cover, which is located above the power supply and forms a closed space with the housing accommodating space.

10. A method for preparing a solid-solid phase change thermal storage laser, characterized in that: The method comprises: Providing a fiber coiling module, the fiber coiling 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 changes into a liquid state; Filling the liquid solid-solid phase change heat storage material into 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, plugging 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 inside the first accommodation space, and the second pump source heat storage module is arranged inside 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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