Drying box and laser amplifier

Abstract

The utility model discloses a drying box and a laser amplifier, which comprise a gas circuit structure and a gas pump, and the gas pump is communicated with the gas circuit structure, so that gas can circulate in the gas circuit structure; the gas circuit structure comprises a drying device which is provided with a gas inlet end and a gas outlet end, and the drying device is used for drying gas; the detection device comprises a detection body and detectors, the detection body defines a first channel and a second channel, and the first channel and the second channel are arranged in a separated mode and contain the detectors respectively; wherein the first channel is communicated with the air inlet end, the detector in the first channel is used for detecting the humidity of the air before the air is input into the drying device, the second channel is communicated with the air outlet end, and the detector in the second channel is used for detecting the humidity of the air output from the drying device. According to the drying box, the humidity of gas before and after drying can be detected, so that the humidity of the gas is accurately monitored, and the air pump can be adjusted according to the humidity difference before and after drying, so that the required dryness of the gas is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of drying equipment, in particular to a drying box and a laser amplifier. Background Art

[0002] Laser amplifiers mainly amplify the energy of laser pulses through amplifier crystals. Amplifier crystals generate a lot of heat when working. If the heat cannot be dissipated in time, the amplifier crystals will have thermal effects and cannot work properly. At present, amplifier crystals are often cooled to dissipate heat when working. However, if the humidity of the environment is too high during the cooling process, the amplifier crystals will be frosted and affect the work. Therefore, laser amplifiers need to be used with drying devices.

[0003] In the related art, the drying device usually dehumidifies by extracting vacuum with a vacuum pump or by placing a desiccant. However, the vacuum extraction method has high requirements for the vacuum pump, and the vacuum pump with high vacuum degree is expensive and has the risk of oil fume pollution in the dust-free environment; while placing a desiccant to dry the gas cannot realize accurate monitoring of humidity, and the drying speed is slow. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a drying box, which can accurately monitor the humidity of the gas and improve the drying speed of the drying box.

[0005] The utility model also provides a laser amplifier with the drying box.

[0006] According to the first aspect of the present invention, the drying box comprises an air path structure and an air pump, wherein the air pump is connected to the air path structure so that gas can flow in the air path structure;

[0007] Wherein, the gas path structure comprises:

[0008] A drying device having an air inlet end and an air outlet end, the drying device being used to dry the gas; and

[0009] A detection device comprises a detection body and a detector, wherein the detection body defines a first channel and a second channel, the first channel and the second channel are separated and respectively contain the detector;

[0010] Among them, the first channel is connected to the air inlet end, and the detector in the first channel is used to detect the humidity of the gas before it is input into the drying device. The second channel is connected to the air outlet end, and the detector in the second channel is used to detect the humidity of the gas output from the drying device.

[0011] The drying oven according to the embodiment of the utility model has at least the following beneficial effects: the drying oven detects the gas before and after drying respectively through the detection device, thereby accurately monitoring the humidity of the gas. At the same time, the air pump can be adjusted according to the humidity difference before and after drying, so that the gas reaches the required dryness.

[0012] According to some embodiments of the utility model, the detection body further defines a first accommodating cavity and a second accommodating cavity separated from the first accommodating cavity, the first accommodating cavity is connected to the first channel, the second accommodating cavity is connected to the second channel, and the detector includes a first sensing element and a second sensing element, the first sensing element is arranged in the first accommodating cavity, and the second sensing element is arranged in the second accommodating cavity.

[0013] According to some embodiments of the present utility model, the first sensing member and the second sensing member have a sensing end and a conductive part, the sensing end is electrically connected to the conductive part, the sensing end is arranged in the first channel and the second channel, and the conductive part is arranged in the first accommodating cavity and the second accommodating cavity.

[0014] According to some embodiments of the utility model, the detection body also includes a connecting piece, the first accommodating cavity and the second accommodating cavity are both connected to the connecting piece, the connecting piece has a hollow structure and fixes the detector to the detection body, and the conductive part is arranged in the hollow structure.

[0015] According to some embodiments of the utility model, it also includes an adjusting component and a measuring component, wherein the adjusting component is electrically connected to the air pump and the measuring component and controls the operation of the air pump, and the measuring component is configured to be connected to the air pump to measure the flow rate of the gas in the drying box.

[0016] According to some embodiments of the utility model, the drying device includes a drying tube and a purification tube connected to the drying tube, the drying tube and the purification tube are made of visual materials, the air inlet end is arranged on the drying tube, the drying tube accommodates a drying medium and an indicating medium, the drying tube and the first channel are mutually connected, the air outlet end is arranged on the purification tube, the purification tube includes a decontamination medium and an indicating medium, and the purification tube and the second channel are mutually connected.

[0017] According to some embodiments of the present invention, the hollow structure is provided with a sealing medium, and the sealing medium is used to fill the gap between the conductive part and the hollow structure.

[0018] The laser amplifier according to the second embodiment of the utility model comprises:

[0019] a housing defining a storage space and comprising an air outlet and an air inlet, wherein the air outlet and the air inlet are connected to the storage space; and

[0020] The drying box described in any of the above embodiments is connected between the air outlet and the air inlet, so that the gas in the accommodating space can be dried by the drying box and then flow back to the accommodating space.

[0021] The laser amplifier according to the embodiment of the utility model has at least the following beneficial effects: the humidity of the gas inside the shell can be clearly understood through the humidity monitoring of the drying box, and the working state of the amplifier crystal can be judged according to the humidity value, and at the same time, the gas is guided back to the shell after drying to improve the circulation inside the shell to accelerate the drying speed.

[0022] According to some embodiments of the present invention, the invention further comprises

[0023] A fixture, accommodated in the accommodation space and defining a storage cavity;

[0024] an amplifier crystal, accommodated in the storage cavity; and

[0025] A refrigeration device, the refrigeration device is located in the accommodating space and connected to the shell, the refrigeration device comprises a refrigeration surface and a heating surface arranged opposite to the refrigeration surface;

[0026] The housing further comprises a heat sink, wherein the heat sink is provided with a passage, and the passage is used for circulating a heat dissipation medium;

[0027] Wherein, the heat sink is connected to the heating surface, and the clamp is connected to the cooling surface.

[0028] According to some embodiments of the utility model, the shell further includes a cover plate and a fastener, the shell forms a connecting groove around the accommodating space, a sealing ring is provided in the connecting groove, the cover plate is connected to the sealing ring and fixed to the connecting groove, and the fastener is detachably fixed to the cover plate.

[0029] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0031] Figure 1 This is a schematic diagram of a drying oven according to an embodiment of the utility model;

[0032] Figure 2 This is a schematic diagram of a drying oven according to an embodiment of the utility model;

[0033] Figure 3 It is a schematic diagram of a detection device according to an embodiment of the utility model;

[0034] Figure 4 An exploded diagram of a detection device according to an embodiment of the utility model;

[0035] Figure 5 A schematic diagram of a detection body according to an embodiment of the utility model;

[0036] Figure 6 A schematic diagram of a laser amplifier according to an embodiment of the utility model;

[0037] Figure 7 It is a schematic diagram of a housing of an embodiment of the utility model;

[0038] Figure 8 It is a schematic diagram of a housing of an embodiment of the utility model;

[0039] Fig. 9 Schematic diagram of a clamp according to an embodiment of the utility model.

[0040] Reference numerals:

[0041] Drying box 100; drying device 110; air inlet end 111; air outlet end 112; drying tube 113; purification tube 114; filter 115; air pump 120; detection device 130; detection body 131; first channel 1311; second channel 1312; first accommodating cavity 1313; second accommodating cavity 1314; connecting member 1315; hollow structure 1316; detector 132; first sensing member 1321; second sensing member 1322; sensing end 1323; conductive part 1324; adjusting member 140; measuring member 150; display screen 160; timer 170; air flow inlet 180; air flow outlet 190;

[0042] Laser amplifier 200; housing 210; accommodating space 211; heat sink 212; passage 2121; air outlet 213; air inlet 214; cover 215; fastener 216; connecting groove 217; refrigeration device 220; cooling surface 221; heating surface 222; clamp 230; upper cover 231; lower cover 232; storage cavity 233; amplifier crystal 240. DETAILED DESCRIPTION

[0043] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0044] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0045] In the description of the present utility model, "several" means more than one, "many" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0046] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0047] In the description of the utility model, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0048] The drying box 100 according to the first embodiment of the utility model will be described below with reference to the accompanying drawings.

[0049] See also Figure 1 As shown, the embodiment of the utility model provides a drying box 100 that can accurately monitor the humidity of the gas and increase the drying speed, wherein the drying box 100 includes an air path structure and an air pump 120, wherein the air path structure is a path structure for gas circulation formed by interconnecting the components used for drying the gas in the drying box 100, and the air pump 120 is connected to the air path structure so that the gas can circulate in the air path structure to complete the work of drying the gas. Specifically, the air path structure includes a drying device 110 and a detection device 130. The drying device 110 is used to dry the gas to reduce the humidity of the gas and remove impurities from the gas. The drying device 110 includes an air inlet end 111 and an air outlet end 112. The air inlet end 111 is used to input the gas to be dried, and the gas after drying is discharged from the air outlet end 112.

[0050] See also Figure 1 and Figure 3 As shown, the detection device 130 is used to detect the humidity of the gas. The detection device 130 includes a detection body 131 and a detector 132, wherein Figures 3 to 5 As shown, the detection body 131 defines a first channel 1311 and a second channel 1312 , which are channels for airflow to pass through. The first channel 1311 and the second channel 1312 are separated and not connected to each other, and the detector 132 is accommodated in each of the first channel 1311 and the second channel 1312 . Specifically, the first channel 1311 is connected to the air inlet 111 of the drying device 110. Before the gas enters the drying device 110 through the air inlet 111 for drying, the detector 132 in the first channel 1311 will contact the gas and measure the humidity of the gas before drying; similarly, the second channel 1312 is connected to the air outlet 112 of the drying device 110. After the gas is dried, the gas will enter the second channel 1312 from the air outlet 112. At this time, the detector 132 in the second channel 1312 will detect the humidity of the gas after drying. The user can accurately monitor the humidity of the gas through the detectors 132 of the first channel 1311 and the second channel 1312, and can adjust the air pump 120 according to the humidity difference before and after drying, so that the gas reaches the required dryness.

[0051] Furthermore, the drying box 100 includes an air flow inlet 180 and an air flow outlet 190 , the first channel 1311 has a first air inlet and a first air outlet, and the second channel 1312 has a second air inlet and a second air outlet. In some embodiments, the detection device 130 and the drying device 110 are connected through the air pump 120. Specifically, the air flow inlet 180 is connected to the first air inlet, the air pump 120 is connected between the first air outlet and the air inlet end 111, the air outlet end 112 is connected to the second air inlet, and the air flow outlet 190 is connected to the second air outlet. That is, when the air pump 120 starts to work to extract air, the gas will enter the drying box 100 through the air flow inlet 180, the gas first passes through the first channel 1311 of the detection device 130, and the humidity of the gas is first detected by the first channel 1311. The gas is then conducted to the drying device 110 through the air pump 120 for drying. The dried gas enters the second channel 1312 through the air outlet end 112 and the second air inlet to detect the humidity after drying, and finally is discharged from the drying box through the second air outlet and the air flow outlet 190. Placing the air pump 120 between the first channel 1311 and the drying device 110 can ensure that the gas will not be disturbed by other components after entering the drying box 100, and the humidity is directly measured by the detector 132 in the first channel 1311, thereby obtaining an accurate humidity value of the gas before drying. After the gas is dried, it will directly enter the second channel 1312 through the second air inlet, and the humidity will be directly measured by the detector 132 in the second channel 1312, thereby obtaining an accurate humidity value of the gas after drying. After the measurement, the gas is directly discharged through the air flow outlet 190. In this way, the detector 132 can measure the humidity of the gas before and after drying in the first place to accurately monitor the humidity of the gas.

[0052] The order in which the gas passes through the air pump 120, the detection device 130 and the drying device 110 can be changed, as long as the gas can enter the drying box 100 for drying and the humidity before and after drying is detected. For example, in some embodiments, the air pump 120 is connected between the airflow inlet 180 and the first air inlet, the first air outlet is connected to the air inlet end 111 of the drying device 110, the air outlet end 112 is connected to the second air inlet, and the airflow outlet 190 is connected to the second air outlet. That is, after the gas is sucked into the drying box 100, it will first pass through the air pump 120, and then enter the first channel 1311 from the air pump 120 to detect the humidity before drying, and then enter the drying device 110 through the air inlet end 111 for drying. After the drying is completed, the gas will enter the second channel 1312 from the air outlet end 112 and the second air inlet to detect the humidity after drying. After the detection, the gas is directly discharged from the drying box 100 through the second air outlet and the airflow outlet 190. In another embodiment, the airflow inlet 180 is connected to the first air inlet, the first air outlet is connected to the air inlet end 111, the air pump 120 is connected between the air outlet end 112 and the second air inlet, and the second air outlet is connected to the airflow outlet 190. That is, after the gas is sucked into the drying box 100, it will first enter the first channel 1311 to detect the humidity before drying, and then enter the drying device 110 through the air inlet end 111 to be dried. After the drying is completed, the gas will flow through the air pump 120 from the air outlet end 112, and then flow from the air pump 120 into the second channel 1312 to detect the humidity after drying. After the detection, the gas is directly discharged through the airflow outlet 190. In other embodiments, the airflow inlet 180 is connected to the first air inlet, the first air outlet is connected to the air inlet end 111, the air outlet end 112 is connected to the second air inlet, and the air pump 120 is arranged between the second air outlet and the airflow outlet 190. That is, after the gas is sucked into the drying box 100, it will first enter the first channel 1311 to detect the humidity before drying, and then enter the drying device 110 through the air inlet end 111 for drying. After drying, the gas will enter the second channel 1312 from the air outlet end 112 to detect the humidity after drying. After detection, the gas will flow through the air pump 120 through the second air outlet, and finally be conducted from the air pump 120 to the air flow outlet 190 to be discharged from the drying box 100.

[0053] In some embodiments, see Figure 5As shown, the detection body 131 further defines a first accommodating chamber 1313 and a second accommodating chamber 1314, and the first accommodating chamber 1313 and the second accommodating chamber 1314 are arranged at intervals and are not connected to each other. One end of the first accommodating chamber 1313 is connected to the outside world, and the other end is connected to the first channel 1311 inside the detection body 131; similarly, one end of the second accommodating chamber 1314 is connected to the outside world, and the other end is connected to the second channel 1312 inside the detection body 131. The first accommodating chamber 1313 and the second accommodating chamber 1314 are used to place and fix the detector 132. At the same time, the detector 132 includes a first sensing element 1321 and a second sensing element 1322. The first sensing element 1321 is accommodated in the first accommodating chamber 1313 and is used to detect the humidity of the gas before drying. The second sensing element 1322 is accommodated in the second accommodating chamber 1314 and is used to detect the humidity of the gas after drying.

[0054] In some embodiments, the detection device 130 further includes a third sensor connected to the outside of the drying box 100 and used to detect the humidity of the atmospheric environment in which the drying box 100 is located. Since the humidity of the gas to be dried before drying is almost the same as the humidity of the atmospheric environment, before drying the gas, the user can make a rough judgment on the humidity of the gas to be dried based on the atmospheric humidity detected by the third sensor, thereby adjusting the initial suction power of the air pump 120 and placing the desiccant.

[0055] Furthermore, the drying box 100 includes a display screen 160 , which is connected to the detection device 130 . When the drying box 100 starts to work, the humidity of the gas measured by the first sensor 1321 , the second sensor 1322 and the third sensor is displayed on the display screen 160 .

[0056] In some embodiments, the air pump 120 is configured to be controlled by a control device, and the third sensor communicates with the control device. The third sensor transmits the measured humidity to the control device. If the humidity value is greater than a set value, the control device will start the air pump 120 to dry the gas, or when the humidity value is less than a set value, the control device will turn off the air pump 120 to suspend drying the gas.

[0057] In some embodiments, see Figure 3 and Figure 4As shown, the first sensing member 1321 and the second sensing member 1322 both have a sensing end 1323 and a conductive portion 1324. The sensing end 1323 is an end provided with a sensor, and the conductive portion 1324 is connected to the circuit, and the sensing end 1323 is electrically connected to the conductive portion 1324. Since the gas flows through the first channel 1311 and the second channel 1312, when the first sensing member 1321 and the second sensing member 1322 are connected to the detection body 131, the sensing end 1323 of the first sensing member 1321 is located in the first channel 1311, and the sensing end 1323 of the second sensing member 1322 is located in the second channel 1312. The conductive portion 1324 of the first sensing member 1321 is located in the first accommodating cavity 1313, and the conductive portion 1324 of the second sensing member 1322 is located in the second accommodating cavity 1314.

[0058] Further, see Figure 3 and Figure 4 As shown, the detection body 131 also includes a connecting piece 1315. In this embodiment, the number of the connecting pieces 1315 matches the number of the accommodating chambers, that is, two. The first accommodating chamber 1313 and the second accommodating chamber 1314 are both connected with the connecting piece 1315, and there is no connection relationship between the two connecting pieces 1315. A part of the connecting piece 1315 is accommodated in the first accommodating chamber 1313 and the second accommodating chamber 1314. The connecting piece 1315 has a hollow structure 1316. When the first sensing piece 1321 and the second sensing piece 1322 are respectively arranged in the first accommodating cavity 1313 and the second accommodating cavity 1314, the conductive part 1324 of the first sensing piece 1321 and the conductive part 1324 of the second sensing piece 1322 will pass through the hollow structure 1316 of the connecting piece 1315 and extend to the outside to be electrically connected to the external circuit. The detection body 131 fixes the first sensing piece 1321 and the second sensing piece 1322 in the accommodating cavity through the connecting piece 1315 to prevent the first sensing piece 1321 and the second sensing piece 1322 from being separated from the detection body 131 to affect the normal operation of the drying box 100.

[0059] In other embodiments (not shown in the figures), the number of connecting members 1315 and the number of accommodating cavities may not match, for example, the number of connecting members 1315 may be one, for example, the connecting member 1315 may be a double-headed, arc-shaped structure similar in shape to a "U"-shaped structure, and two sensing members may be fixed in two accommodating cavities by one connecting member 1315; or there may be four, and the first accommodating cavity 1313 and the second accommodating cavity 1314 are both connected to two connecting members 1315 to doubly fix the first sensing member 1321 and the second sensing member 1322.

[0060] In some embodiments, a sealing medium is provided in the hollow structure 1316 of the connector 1315. Since the conductive portion 1324 is mainly composed of a wire, and the space of the hollow structure 1316 is larger than the thickness of the wire, there will be a gap between the two. Filling the sealing medium in the hollow structure 1316 can fill the gap between the conductive portion 1324 and the hollow structure 1316, thereby avoiding leakage of the drying gas and improving the drying efficiency of the gas. In this embodiment, the sealing medium is glue. In other embodiments, the sealing medium can also be other substances, such as: silica gel, or resin, or glass glue, etc.

[0061] In some embodiments, the connector 1315 is fixed in the first accommodating cavity 1313 and the second accommodating cavity 1314 by threaded connection, and the thread of the connector 1315 is wound with raw tape, so that there is no gap at the connection between the connector 1315 and the accommodating cavity, so as to reduce the gas entering the first accommodating cavity 1313 or the second accommodating cavity 1314, and improve the drying efficiency of the drying box 100. Since the first sensing element 1321 and the second sensing element 1322 are composed of electronic components and sensors, they may be damaged or malfunction during use. The gap between the connector 1315 and the accommodating cavity is filled with raw tape instead of glue. When the sensing element is damaged, the connector 1315 can be removed from the first accommodating cavity 1313 or the second accommodating cavity 1314 to replace the sensing element. If the connector 1315 is fixed in the accommodating cavity with glue, the maintenance or replacement of the sensing element in the later stage can only be replaced as a whole by replacing the detection body 131 and the detector 132, which is costly. In other embodiments, the connector 1315 may also be connected to the first accommodating cavity 1313 or the second accommodating cavity 1314 by other detachable methods and gap-filling methods. For example, the connector 1315 may be a cylindrical structure with a hollow structure 1316, and the inner diameter of the cylinder is larger than the inner diameter of the accommodating cavity, so that the connector 1315 is interference-fitted into the accommodating cavity, thereby making the connector 1315 and the accommodating cavity both detachably connected and able to fill the gap therebetween by interference fitting.

[0062] In some embodiments, see Figure 1As shown, the drying device 110 includes a drying tube 113, a purification tube 114 and a filter 115. Among them, the drying tube 113 contains a drying medium and an indicating medium, the drying medium is used to dry the gas, and the indicating medium is used to determine whether the drying medium is invalid. If the drying medium fails to dry the gas, the moisture in the gas will adhere to the indicating medium, and the color of the indicating medium will change, thereby reminding the user that the drying medium needs to be replaced. Similarly, the purification tube 114 includes a cleaning medium and an indicating medium, and the indicating medium in the cleaning tube 114 is used to determine whether the cleaning medium is invalid. If the cleaning medium fails to clean the gas, impurities in the gas, such as particulate matter, oil and dust in the gas, will adhere to the indicating medium, and the color of the indicating medium will change, thereby reminding the user that the cleaning medium needs to be replaced. Further, the drying tube 113 and the purification tube 114 are made of a visual material, and the use of the visual material allows the user to directly observe the color of the indicating medium in the drying tube 113 and the purification tube 114. In this embodiment, the drying tube 113 and the purification tube 114 are made of acrylic material. In other embodiments, the drying tube 113 and the purification tube 114 may also be made of glass material, or transparent PC board, etc. In another embodiment, the drying tube 113 and the purification tube 114 may also be made of invisible materials, such as steel pipes, and holes may be opened in the steel pipes to observe the color of the indicator in the drying tube 113 and the purification tube 114 through the holes.

[0063] Specifically, the drying tube 113 is used to dry the gas. The air inlet end 111 of the drying device 110 is set on the drying tube 113. After the gas enters the drying tube 113 for preliminary drying, the gas will enter the filter 115 through the drying tube 113. The filter 115 will filter and remove impurities from the air in the tube. After that, the gas will enter the purification tube 114 through the filter 115. The purification tube 114 will perform deep dehumidification, drying, filtering and impurity removal on the gas. The air outlet end 112 is set on the purification tube 114. The gas after drying and impurity removal will be discharged to the second channel 1312 of the detection device 130 through the air outlet end 112. In other embodiments, the gas may pass through the drying tube 113, the purification tube 114 and the filter 115 in other orders, such as: the gas may first pass through the filter 115 for impurity removal, then pass through the drying tube 113 for drying, and finally pass through the purification tube 114 for deep drying and impurity removal; or the gas may first pass through the purification tube 114 for drying and impurity removal, and then pass through the drying tube 113 and the filter 115 for deep drying and impurity removal, and so on.

[0064] In some embodiments, the materials in the drying tube 113 and the purification tube 114 have a certain placement order, wherein the drying medium in the drying tube 113 is arranged at intervals and at the two ends of the drying tube 113, respectively, and the indicating medium is located in the middle of the drying medium at the two ends. Similarly, the impurity removal medium in the purification tube 114 is arranged at intervals and at the two ends of the purification tube 114, respectively, and the indicating medium is located in the middle of the impurity removal medium at the two ends. Using this placement order can increase the contact area between the gas and the drying medium and facilitate the replacement of the drying medium. In other embodiments, the materials in the drying tube 113 and the filter 115 can also be placed in other orders, such as placing the drying medium at one end of the drying tube 113 and placing the indicating medium at the other end. Similarly, the impurity removal medium is placed at one end of the filter 115 and the indicating medium is placed at the other end. Further, the impurity removal medium in the purification tube 114 includes 4A molecular sieve and 13X molecular sieve, wherein the 4A molecular sieve is used to absorb moisture and dust, and the 13X molecular sieve is used to deeply dehumidify the air, thereby improving the dryness of the gas.

[0065] Among them, molecular sieve is a synthetic hydrated aluminosilicate or natural zeolite with the function of screening molecules. It has a regular pore structure and has uniform micropores inside, and the pore size of these micropores is fixed and uniform. Molecular sieve can separate or selectively adsorb according to the size and shape of molecules, that is, it only adsorbs molecules smaller than its internal pore size and excludes molecules larger than the pore size, thereby playing the role of screening molecules. 4A molecular sieve and 13X molecular sieve are one of the molecular sieves. In other embodiments, the impurity removal medium in the purification tube 114 can also use 3A molecular sieve, or hollow glass molecular sieve and other types.

[0066] In some embodiments, see Figure 1 and Figure 2 As shown, the drying box 100 further includes an adjustment member 140 and a measuring member 150, wherein the adjustment member 140 is electrically connected to the air pump 120 and the measuring member 150, and the adjustment member 140 is configured to control the operation of the air pump 120 so as to change the rate at which the air pump 120 draws gas, and the user can adjust the air pump 120 according to actual conditions to achieve the desired working efficiency. The measuring member 150 is configured to be connected to the air pump 120, and is used to measure the gas flow rate in the drying box 100, and the drying speed can be determined by the gas flow rate and the efficiency of the air pump 120 can be monitored.

[0067] In some embodiments, see Figure 2As shown, the drying box 100 further includes a timer 170, which is used to record the operating time of the drying box 100. At the same time, the use status of the internal components of the drying box 100 can also be inferred through the timer 170. For example, when the drying box 100 operates for a period of time, the time recorded by the timer 170 can be used to determine whether the dry material in the drying box 100 needs to be replenished, or to determine whether the life of the air pump 120 has reached an upper limit or whether the air pump 120 needs to be replaced, or to determine the entire working life of the drying box 100.

[0068] In some embodiments, the drying box 100 further includes an airflow inlet 180 and an airflow outlet 190. When the drying box 100 is working, the airflow inlet 180 and the airflow outlet 190 will be connected to the equipment to be dried, and the air pump 120 will start to work to suck the gas into the drying box 100. The sucked gas will pass through the first channel 1311 of the detection body 131 to measure the humidity before drying, and then the gas will be successively transmitted through the drying tube 113, the filter 115 and the purification tube 114 for drying and impurity removal. The dried gas will be conducted from the purification tube 114 to the second channel 1312 of the detection body 131 to measure the humidity after drying, and finally transmitted back to the equipment through the airflow outlet 190 of the drying box 100.

[0069] In some embodiments, since the gas needs to be continuously conducted inside the drying box 100, and the components in the drying box 100 conduct and transfer the air by connecting air pipes, a plurality of air inlet and outlet channels are provided in the drying box 100, and air pipe plugs are inserted in the air inlet or outlet channels, wherein some of the air pipe plugs are arc-shaped structures. The use of an air pipe plug with an arc-shaped structure can prevent the air pipe from bending inside the drying box 100 to cause damage to the air pipe when connecting the air outlet channel and the air inlet channel of the next level. At the same time, the use of an arc-shaped air pipe plug can make the distribution of the air pipe more compact, thereby making the structure of the drying box 100 compact and having a smaller volume.

[0070] The laser amplifier 200 according to the second embodiment of the utility model will be described below with reference to the accompanying drawings.

[0071] See also Figure 6 and Figure 7As shown, the embodiment of the utility model provides a laser amplifier 200, which includes a housing 210. The housing 210 defines a storage space 211, and the housing 210 includes an air outlet 213 and an air inlet 214, wherein the air outlet 213 is connected to the air flow inlet 180 of the drying box 100 through an air pipe, and the air inlet 214 is connected to the air flow outlet 190 of the drying box 100 through an air pipe. Under the action of the air pump 120, the gas in the storage space 211 will be discharged from the housing 210 through the air outlet 213, and then enter the drying box 100 through the air flow inlet 180 to perform a series of detection and drying work. After the detection and drying work is completed, the gas will be discharged from the air flow outlet 190 and transported back to the storage space 211 of the housing 210 through the air inlet 214, thereby realizing the gas drying cycle in the housing 210.

[0072] Since the drying box 100 uses the air pump 120 to suck gas and uses the drying medium for drying, using the drying box 100 to dry the laser amplifier 200 can solve the problem of oil fume pollution to the dust-free environment caused by the vacuum pump used in the traditional drying box 100; the humidity of the gas can be accurately monitored by the detection device 130, and the air pump 120 can change the speed of gas suction to change the drying speed of the drying box 100, thereby solving the problem that the traditional placement of desiccant cannot accurately monitor the humidity and the drying speed is slow. At the same time, since the laser amplifier 200 needs to reduce the volume of the enclosed space to improve the control accuracy and adjustment speed of the laser amplifier 200, using the drying box 100 to dry the gas in the laser amplifier 200 can also solve the problem that the laser amplifier 200 does not have additional space to place sufficient desiccant to dry the gas. Among them, the drying box 100 is not limited to being used in combination with the laser amplifier 200. In other embodiments (not shown in the figure), the drying box 100 can also be used for instruments such as chromatographs, and can also be infrared spectroscopy measurements that are extremely sensitive to water vapor, or femtosecond lasers and other equipment.

[0073] In some embodiments, see Figures 6 to 8 As shown, the laser amplifier 200 further includes a fixture 230 and an amplifier crystal 240. Both the fixture 230 and the amplifier crystal 240 are located in the accommodation space 211. The fixture 230 has a storage cavity 233, and the amplifier crystal 240 is accommodated in the storage cavity 233. At the same time, the housing 210 further includes a heat sink 212. In this embodiment, the heat sink 212 is the bottom wall structure of the accommodation space 211. The bottom of the heat sink 212 is provided with a passage 2121 (such as Figure 8As shown). A refrigeration device 220 is arranged above the passage 2121, i.e., on the bottom wall structure of the accommodation space 211. The refrigeration device 220 is located inside the accommodation space 211. The refrigeration device 220 includes a refrigeration surface 221 and a heating surface 222. The refrigeration surface 221 and the heating surface 222 are arranged opposite to each other. The heating surface 222 is located above the passage 2121 and is interconnected with the heat sink 212. The heating surface 222 transfers heat to the heat dissipation medium of the passage 2121 through the housing 210. The refrigeration surface 221 is attached to the bottom of the clamp 230. The refrigeration surface 221 cools to transfer heat with the clamp 230, thereby cooling the clamp 230 and the amplifier crystal 240. When the amplifier crystal 240 is working, the amplifier crystal 240 generates a large amount of heat, which is transferred to the refrigeration surface 221 through the clamp 230. The refrigeration surface 221 transfers heat with the clamp 230 to achieve cooling. The drying box 100 is connected to the outside of the housing 210 and is connected to the housing 210 through an air pipe. When the amplifier crystal 240 needs to work, the air in the housing 210 is first dried to a certain value by the drying box 100 before the laser amplifier 200 is turned on to make the amplifier crystal 240 work, so as to prevent the amplifier crystal 240 from frosting due to excessive humidity during operation, thereby affecting the normal operation of the laser amplifier 200.

[0074] In other embodiments (not shown in the figures), the heat sink 212 may be a side wall or a top wall of the accommodating space 211; in another embodiment (not shown in the figures), the heat sink 212 may also be a separate heat dissipation component, and the heat sink 212 may be located not only on the bottom wall of the accommodating space 211, but also on the side wall of the accommodating space 211, or on other positions such as the top wall of the accommodating space 211.

[0075] In some embodiments, see Figure 6 and Fig. 9 As shown, the clamp 230 includes an upper cover 231 and a lower cover 232, and the refrigeration surface 221 of the refrigeration device 220 is attached to the lower cover 232. A plurality of threaded holes are provided on the upper cover 231, and the upper cover 231 and the lower cover 232 are connected by screws. Optionally, in other embodiments, the upper cover 231 and the lower cover 232 can be connected by other means, such as: pin connection, key connection, or snap connection, or mortise and tenon connection. Further, the upper cover 231 includes a first protrusion, and the lower cover 232 includes a second protrusion, wherein the first protrusion is formed by the upper cover 231 protruding toward the lower cover 232, and the second protrusion is formed by the lower cover 232 protruding toward the upper cover 231. The positions of the first protrusion and the second protrusion are staggered. When the upper cover 231 and the lower cover 232 are connected and fixed, the first protrusion and the second protrusion will be staggered to form a storage cavity 233. The amplifier crystal 240 is placed in the storage cavity 233 .

[0076] In some embodiments, see Figure 7 As shown, in order to better improve the drying efficiency and drying quality of the laser amplifier 200, the housing 210 is usually set as a sealing structure. Therefore, after the refrigeration device 220, the clamp 230 and the amplifier crystal 240 are assembled into the accommodating space 211, the housing 210 needs to be sealed, wherein the housing 210 also includes a cover plate 215 and a fastener 216. The housing 210 forms a connecting groove 217 around the accommodating space 211, and a sealing ring is arranged in the connecting groove 217. The cover plate 215 is covered in the connecting groove 217 to seal the accommodating space 211. The use of the sealing ring can reduce the gap between the cover plate 215 and the connecting groove 217, thereby reducing the gas exchange between the housing 210 and the atmosphere to improve the drying speed of the gas inside the housing 210. At the same time, the fastener 216 is connected and fixed to the cover plate 215 to further fix the cover plate 215 to the housing 210.

[0077] In some embodiments, the cover plate 215 is made of dark acrylic, and the use of dark materials can reduce the damage to the eyes caused by the laser when the laser amplifier 200 is working. Acrylic materials are visual materials, which can facilitate the observation and adjustment of the internal laser position and size.

[0078] The embodiments of the utility model are described in detail above in conjunction with the accompanying drawings, but the utility model is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the purpose of the utility model. In addition, the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

Claims

1. Drying box, characterized in that: It includes an air path structure and an air pump, wherein the air pump is connected to the air path structure so that gas can flow in the air path structure; Wherein, the gas path structure comprises: A drying device having an air inlet end and an air outlet end, the drying device being used to dry the gas; and A detection device comprises a detection body and a detector, wherein the detection body defines a first channel and a second channel, the first channel and the second channel are separated and respectively contain the detector; Among them, the first channel is connected to the air inlet end, and the detector in the first channel is used to detect the humidity of the gas before it is input into the drying device. The second channel is connected to the air outlet end, and the detector in the second channel is used to detect the humidity of the gas output from the drying device.

2. The drying oven according to claim 1, characterized in that: The detection body also defines a first accommodating cavity and a second accommodating cavity separated from the first accommodating cavity, the first accommodating cavity is connected to the first channel, the second accommodating cavity is connected to the second channel, the detector includes a first sensing element and a second sensing element, the first sensing element is arranged in the first accommodating cavity, and the second sensing element is arranged in the second accommodating cavity.

3. The drying oven according to claim 2, characterized in that: The first induction member and the second induction member have induction ends and conductive parts, the induction ends are electrically connected to the conductive parts, the induction ends are arranged in the first channel and the second channel, and the conductive parts are arranged in the first accommodating cavity and the second accommodating cavity.

4. The drying box according to claim 3, characterized in that: The detection body further includes a connecting piece, the first accommodating cavity and the second accommodating cavity are both connected to the connecting piece, the connecting piece has a hollow structure and fixes the detector to the detection body, and the conductive part is arranged in the hollow structure.

5. The drying oven according to claim 1, characterized in that: It also includes a regulating component and a measuring component. The regulating component is electrically connected to the air pump and the measuring component and controls the operation of the air pump. The measuring component is configured to be connected to the air pump to measure the flow rate of the gas in the drying box.

6. The drying oven according to claim 1, characterized in that: The drying device includes a drying tube and a purification tube connected to the drying tube, the drying tube and the purification tube are made of a visible material, the air inlet end is arranged on the drying tube, the drying tube accommodates a drying medium and an indicating medium, the drying tube and the first channel are mutually connected, the air outlet end is arranged on the purification tube, the purification tube includes a decontamination medium and an indicating medium, and the purification tube and the second channel are mutually connected.

7. The drying oven according to claim 4, characterized in that: The hollow structure is provided with a sealing medium, and the sealing medium is used to fill the gap between the conductive part and the hollow structure.

8. A laser amplifier, characterized in that include A housing defines a storage space and includes an air outlet and an air inlet, wherein the air outlet and the air inlet are connected to the storage space; as well as The drying box according to any one of claims 1 to 7, wherein the drying box is connected between the air outlet and the air inlet, so that the gas in the accommodation space can be dried by the drying box and then flow back to the accommodation space.

9. The laser amplifier according to claim 8, characterized in that: Also includes A fixture, accommodated in the accommodation space and defining a storage cavity; an amplifier crystal, accommodated in the storage cavity; and A refrigeration device, the refrigeration device is located in the accommodating space and connected to the shell, the refrigeration device comprises a refrigeration surface and a heating surface arranged opposite to the refrigeration surface; The housing further comprises a heat sink, wherein the heat sink is provided with a passage, and the passage is used for circulating a heat dissipation medium; Wherein, the heat sink is connected to the heating surface, and the clamp is connected to the cooling surface.

10. The laser amplifier according to claim 8, characterized in that The shell further includes a cover plate and a fastener. The shell forms a connecting groove around the accommodating space. A sealing ring is arranged in the connecting groove. The cover plate is connected to the sealing ring and fixed to the connecting groove. The fastener is detachably fixed to the cover plate.

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