A power load monitoring device

Abstract

The present invention provides an electric load monitoring device, and relates to the technical field of electric devices. An electric load monitoring device includes a collection unit and an execution unit, wherein the collection unit and the execution unit are respectively installed in different shells, a slide rail is installed on the top of the shell, a refrigeration unit is installed on the slide rail, the refrigeration unit includes a telescopic device and a storage bottle, the telescopic device is connected to the slide rail through a sliding car, and the storage bottle is installed on the telescopic device, and a gas transmission unit is installed around each shell, and a temperature measuring device for testing the temperature distribution in the shell is arranged in the shell, and the control unit controls the sliding car to move to the top of the gas inlet of the gas transmission unit closest to the highest temperature part in the shell according to the data collected by the temperature measuring device, and the telescopic device descends and inputs the low-temperature fluid stored in the storage bottle into the shell through the gas transmission unit. The electric load monitoring device provided by the present invention can dissipate heat in time to the part where the local temperature is too high.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power devices, and in particular to an electric power load monitoring device. Background Art

[0002] Because users' electricity demand has peaks and troughs, in order to ensure the stability of the power grid, it is necessary to adjust the power supply of the power grid according to the load on the user side.

[0003] In the related art, the power load at the user end is monitored by a power load monitoring device, and the data obtained by the monitoring is transmitted to the power load monitoring master station. The power load monitoring master station feeds back to the power load monitoring device according to the load and power generation, and performs power restriction or peak load regulation at the user end. However, the power load monitoring device includes multiple acquisition units and multiple execution units, and each unit will generate heat during peak use. If the heat is not dissipated in time, the excessive temperature will affect its performance.

[0004] Therefore, in view of the above problems, there is an urgent need for an electric load monitoring device that can timely dissipate heat from a part where the temperature is too high. Summary of the invention

[0005] The present invention provides a power load monitoring device, which can timely dissipate heat from a part where the temperature is too high. The technical solution of the present invention is as follows:

[0006] An electric load monitoring device comprises a collection unit, an execution unit and a control unit, wherein the collection unit is used to collect the electric quantity, voltage, current and power data of the user end and send it to the electric load monitoring master station, and the execution unit is used to execute the power restriction or peak load regulation instruction on the user end according to the command of the electric load monitoring master station;

[0007] The acquisition unit and the execution unit are respectively installed in different shells, a slide rail is installed on the top of the shell, a refrigeration unit is installed on the slide rail, the refrigeration unit includes a telescopic device and a storage bottle, the telescopic device is connected to the slide rail through a sliding car equipped with a servo motor, the storage bottle is installed on the telescopic device, a gas transmission unit is installed around each of the shells, an exhaust pipe is installed on the top of each of the shells, a temperature measuring device for testing the temperature distribution in the shell is arranged in the shell, the control unit controls the sliding car to move to the top of the air inlet of the gas transmission unit which is closest to the highest temperature part in the shell according to the data collected by the temperature measuring device, the telescopic device descends and inputs the low-temperature fluid stored in the storage bottle into the shell through the gas transmission unit.

[0008] Optionally, the temperature measuring device includes a plurality of temperature measuring units, each of which includes a temperature measuring module and a switch module, the temperature measuring module includes a temperature-sensitive hydrogel wrapped by an elastic film, the elastic film is attached around the components of the execution unit and the collection unit, the switch module includes a touch switch, a piston and a water storage chamber, the piston is sealingly and slidably connected to the water storage chamber, the water storage chamber and the temperature-sensitive hydrogel inside the elastic film are connected through a liquid guide tube, a conductor is installed on the top of the piston, and the touch switch is arranged on the top of the conductor;

[0009] When the temperature of the component where the thermosensitive hydrogel inside the elastic membrane is located is higher than the phase change temperature, the thermosensitive hydrogel deswells, and the liquid in the elastic membrane moves along the liquid guide tube to the water storage chamber under the action of elastic force, pushing up the piston so that its top conductor contacts the touch switch, and the touch switch is turned on to send an electrical signal to the control unit.

[0010] Optionally, the temperature measuring device includes multiple temperature measuring units, each of which includes an insulating heat-conducting layer and a thermistor. The thermistors of the multiple temperature measuring devices are attached around the components of the execution unit and the collection unit through their insulating heat-conducting layers. The temperature distribution of the execution unit and the collection unit is determined by measuring the resistance values ​​of the thermistors of the multiple temperature measuring devices.

[0011] Optionally, the slide rail is in an 8-shape, and a vertical projection of the slide rail falls into the air inlets of all the air delivery units.

[0012] Optionally, the gas delivery unit comprises a fluid storage portion, and the fluid storage portion is used to store cryogenic fluid.

[0013] Optionally, the air inlet of the gas delivery unit is of a planar structure, the mouth of the storage bottle is provided with a gas delivery device, the gas delivery device comprises a first cylinder and a second cylinder which are interconnected, the diameter of the first cylinder is larger than the diameter of the second cylinder, the first cylinder and the inner wall of the mouth of the storage bottle are sealed and slidably connected, a through hole is opened on the side wall of the first cylinder, and a through hole is opened on the surface of the second cylinder away from the first cylinder;

[0014] When the telescopic device drives the storage bottle to move downward, the second cylinder is inserted into the air inlet of the gas transmission unit, and the planar structure presses against the first cylinder, thereby pressing the entire gas transmission device upward, so that the through hole of the first cylinder is connected to the low-temperature fluid in the storage bottle, and then the low-temperature fluid enters the gas transmission unit through the through hole of the first cylinder and the through hole of the second cylinder.

[0015] Optionally, a disc with a diameter larger than that of the first cylinder is mounted on the surface of the first cylinder away from the second cylinder, and the disc is used to engage with the inner edge of the bottle mouth of the storage bottle to prevent the first cylinder from slipping out of the bottle mouth of the storage bottle.

[0016] Optionally, the disc is made of rubber.

[0017] Optionally, the air inlet of the air delivery unit is provided with a multi-petal sealing structure made of elastic material. When the multi-petal sealing structure is not subjected to force, the multi-petal sealing structure contacts each other to seal the air inlet of the air delivery unit. When the sealing structure is subjected to force, the multi-petal sealing structure can be separated from each other to open the air inlet of the air delivery unit.

[0018] Compared with the prior art, the present invention has at least the following beneficial effects:

[0019] In the present invention, the temperature measuring device can collect the temperature distribution of each component of the execution unit and the collection unit in the shell, and even the temperature distribution of different parts of each component, that is, the temperature distribution of different parts in the shell. The control unit controls the refrigeration unit to move to the top of the air inlet of the gas transmission unit near the high-temperature component that needs to be cooled most according to the temperature distribution. The telescopic device of the refrigeration unit controls the storage bottle to descend, and the low-temperature fluid is directly output to the components in the shell by the gas transmission unit, so that the heat can be timely dissipated from the local parts with excessively high temperatures. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 is a structural schematic diagram of a power load monitoring device provided by an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of a gas storage bottle during gas transmission provided by an embodiment of the present invention;

[0023] Figure 3 It is a structural schematic diagram of a water cooling part of an electric load monitoring device provided by an embodiment of the present invention.

[0024] In the figure:

[0025] 1.1- Collection unit;

[0026] 1.2-Execution unit;

[0027] 2- Shell;

[0028] 3- Slide rail;

[0029] 4.1- Sliding car;

[0030] 4.2- Telescopic device;

[0031] 4.3- Storage bottle;

[0032] 5- Gas transmission unit;

[0033] 5.1- Air inlet;

[0034] 5.2- Fluid storage unit;

[0035] 5.3- Planar structure;

[0036] 6.1-Elastic membrane;

[0037] 6.2-Touch switch;

[0038] 6.3-Piston;

[0039] 6.4- Water storage room;

[0040] 6.5-Catheter;

[0041] 6.6-Conductor;

[0042] 7.1- First cylinder;

[0043] 7.2- Second cylinder;

[0044] 7.3-Disc;

[0045] 7.4-Elastic net;

[0046] 8-sink;

[0047] 8.1-Capping;

[0048] 8.2-Sawtooth structure;

[0049] 8.3-Deformed materials;

[0050] 9- Slider. DETAILED DESCRIPTION

[0051] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0052] like Figure 1As shown, an embodiment of the present invention provides a power load monitoring device, including a collection unit 1.1, an execution unit 1.2 and a control unit, wherein the collection unit 1.1 is used to collect the power, voltage, current and power data of the user end, and send it to the power load monitoring master station, and the execution unit 1.2 is used to execute power restriction or peak load regulation instructions on the user end according to the command of the power load monitoring master station;

[0053] The acquisition unit 1.1 and the execution unit 1.2 are respectively installed in different shells 2. A slide rail 3 is installed on the top of the shell 2. A refrigeration unit is installed on the slide rail 3. The refrigeration unit includes a telescopic device 4.2 and a storage bottle 4.3. The telescopic device 4.2 is connected to the slide rail 3 through a sliding car 4.1 equipped with a servo motor. The storage bottle 4.3 is installed on the telescopic device 4.2. A gas transmission unit 5 is installed around each shell 2. An exhaust pipe is installed on the top of each shell 2. A temperature measuring device for testing the temperature distribution in the shell 2 is provided in the shell 2. The control unit controls the sliding car 4.1 to move to the top of the air inlet 5.1 of the gas transmission unit 5 closest to the highest temperature part in the shell 2 according to the data collected by the temperature measuring device. The telescopic device 4.2 descends and inputs the low-temperature fluid stored in the storage bottle 4.3 into the shell 2 through the gas transmission unit 5.

[0054] In this embodiment, the temperature measuring device can collect the temperature of each component of the execution unit 1.2 and the collection unit 1.1 in the housing 2, and even the temperature of different parts of each component, that is, the temperature distribution of different parts in the housing 2. The control unit controls the refrigeration unit to move to above the air inlet 5.1 of the gas delivery unit 5 near the high-temperature component that needs to be cooled most according to the temperature distribution, and the telescopic device 4.2 of the refrigeration unit controls the storage bottle 4.3 to descend, and the low-temperature fluid is directly output to the components in the housing 2 by using the gas delivery unit 5, so that the heat can be dissipated in time for the parts with excessively high local temperatures.

[0055] In this embodiment, the laser positioning technology can be used to enable the sliding vehicle 4.1 to drive the telescopic device 4.2 and the storage bottle 4.3 to move accurately to above the air inlet 5.1 of the gas delivery unit 5.

[0056] Of course, multiple refrigeration units can be arranged on the slide rail 3 to perform multi-point cooling. An exhaust duct for exhausting hot air is provided on the top surface of the shell 2.

[0057] In some embodiments of the present invention, the temperature measuring device includes a plurality of temperature measuring units, each of which includes a temperature measuring module and a switch module. The temperature measuring module includes a temperature-sensitive hydrogel wrapped by an elastic film 6.1, and the elastic film 6.1 is attached around the components of the execution unit 1.2 and the collection unit 1.1. The switch module includes a touch switch 6.2, a piston 6.3 and a water storage chamber 6.4. The piston 6.3 is sealed and slidably connected to the water storage chamber 6.4. The water storage chamber 6.4 is connected to the temperature-sensitive hydrogel inside the elastic film 6.1 through a liquid guide tube 6.5. A conductor 6.6 is installed on the top of the piston 6.3, and the touch switch 6.2 is arranged on the top of the conductor 6.6.

[0058] When the temperature of the thermosensitive hydrogel component inside the elastic membrane 6.1 is higher than the phase transition temperature, the thermosensitive hydrogel deswells, and the liquid in the elastic membrane 6.1 moves along the liquid guide tube 6.5 to the water storage chamber 6.4 under the action of elastic force, pushing up the piston 6.3 so that its top conductor 6.6 contacts the touch switch 6.2, and the touch switch 6.2 is turned on to send an electrical signal to the control unit.

[0059] In this embodiment, the thermosensitive hydrogel inside the elastic membrane 6.1 can not only monitor the temperature of each component, but also conduct heat to the water to cool down the relevant components. After the temperature of the relevant component drops, the thermosensitive hydrogel inside the elastic membrane 6.1 absorbs water again, the conductor 6.6 on the top of the piston 6.3 no longer contacts the touch switch 6.2, and the control unit does not receive an electrical signal, that is, the temperature of the component returns to normal. The process of the thermosensitive hydrogel absorbing and releasing water is conducive to the full stirring and mixing of the water, making its temperature uniform, which is convenient for continuous monitoring and heat conduction and heat dissipation.

[0060] It should be noted that the touch switch 6.2 can be used as a transmitting switch of the signal transmitting device and wirelessly connected to the control unit to enable the control unit to collect temperature information in the housing 2. The signals transmitted by the transmitting devices at different positions are accompanied by different marks to facilitate the control unit to determine the high temperature location.

[0061] In some embodiments of the present invention, the temperature measuring device includes multiple temperature measuring units, each of which includes an insulating heat-conducting layer and a thermistor. The thermistors of the multiple temperature measuring devices are attached around the components of the execution unit 1.2 and the acquisition unit 1.1 through their insulating heat-conducting layers. The temperature distribution of the execution unit 1.2 and the acquisition unit 1.1 is determined by measuring the resistance values ​​of the thermistors of the multiple temperature measuring devices.

[0062] In some embodiments of the present invention, the slide rail 3 is in an 8-shape, and the vertical projection of the slide rail 3 falls into the air inlets 5 . 1 of all the air delivery units 5 .

[0063] In this embodiment, air delivery units 5 are arranged around the two shells 2, and the 8-shaped slide rails 3 facilitate the refrigeration unit to quickly move to the position where the temperature needs to be lowered.

[0064] In some embodiments of the present invention, the gas delivery unit 5 includes a fluid storage part 5.2, which is used to store cryogenic fluid. The fluid storage part 5.2 can store part of the cryogenic fluid, and the storage bottle 4.3 can be moved to the next position for refilling and cooling after being filled, thereby increasing the cooling efficiency.

[0065] Please refer to Figure 2 In some embodiments of the present invention, the air inlet 5.1 of the air delivery unit 5 is surrounded by a plane structure 5.3, the bottle mouth of the storage bottle 4.3 is provided with a gas delivery device, the gas delivery device comprises a first cylinder 7.1 and a second cylinder 7.2 which are connected to each other, the diameter of the first cylinder 7.1 is larger than the diameter of the second cylinder 7.2, the first cylinder 7.1 and the inner wall of the bottle mouth of the storage bottle 4.3 are sealed and slidably connected, a through hole is opened on the side wall of the first cylinder 7.1, and a through hole is opened on the surface of the second cylinder 7.2 away from the first cylinder 7.1;

[0066] When the telescopic device 4.2 drives the storage bottle 4.3 to move downward, the second cylinder 7.2 is inserted into the air inlet 5.1 of the gas delivery unit 5, and the planar structure 5.3 presses against the first cylinder 7.1, thereby pressing the entire gas delivery device upward, so that the through hole of the first cylinder 7.1 is connected to the low-temperature fluid in the storage bottle 4.3, and then the low-temperature fluid enters the gas delivery unit 5 through the through hole of the first cylinder 7.1 and the through hole of the second cylinder 7.2.

[0067] In this embodiment, after the storage bottle 4.3 is lifted, in order to reset the gas delivery device to seal the bottle mouth, a hollow elastic net 7.4 can be provided at the bottle mouth to elastically support the first cylinder 7.1.

[0068] In some embodiments of the present invention, a disc 7.3 having a diameter larger than that of the first cylinder 7.1 is mounted on the surface of the first cylinder 7.1 away from the second cylinder 7.2, and the disc 7.3 is used to engage with the inner edge of the bottle mouth of the storage bottle 4.3 to prevent the first cylinder 7.1 from sliding out of the bottle mouth of the storage bottle 4.3.

[0069] In some embodiments of the present invention, the disc 7.3 is made of rubber. In addition to providing support, the rubber disc 7.3 can also improve sealing performance.

[0070] In some embodiments of the present invention, the air inlet 5.1 of the air delivery unit 5 is provided with a multi-petal sealing structure made of elastic material. When the multi-petal sealing structure is not subjected to force, the multi-petal sealing structure contacts each other to seal the air inlet 5.1 of the air delivery unit 5. When the sealing structure is subjected to force, the multi-petal sealing structure can be separated from each other to open the air inlet 5.1 of the air delivery unit 5.

[0071] Please refer to Figure 3In some embodiments of the present invention, a water tank 8 filled with water may be provided at the bottom of the housing 2, an opening above the water tank 8 is sealed with a cover 8.1 made of an elastic water-proof material, a high-thermal-conductivity slider 9 is provided between the cover 8.1 and the housing 2, and the slider 9 slides in a fixed area between the cover 8.1 and the housing 2 through a driving device with a fixed driving force;

[0072] A sawtooth structure 8.2 is provided in the water tank 8. The sawtooth structure 8.2 includes alternately distributed protrusions and depressions. The protrusions of the sawtooth structure 8.2 abut against the cover 8.1, and a deformable material 8.3 is placed in the depression. The deformable material 8.3 may be a thermosensitive hydrogel.

[0073] The driving device drives the slider 9 to slide in a fixed area. When a certain component of the execution unit 1.2 and the collection unit 1.1 is running at high power, so that its temperature is higher than the phase change temperature of the deformable material 8.3, the heat of the component is quickly transferred to the deformable material 8.3 with high temperature sensitivity through the slider 9 and the cover 8.1, thereby causing the deformable material 8.3 to undergo phase change, de-swell and shrink, and unable to fill the recessed part, thereby increasing the friction coefficient between the slider 9 and the cover 8.1, and causing the driving device with fixed driving force to be unable to continue to drive the slider 9 to slide due to the hindrance of friction. When the power of the high-temperature component decreases or the heat is quickly reduced to below the phase change temperature through the slider 9, the deformable material 8.3 absorbs water and swells, filling the recessed part, reducing the friction coefficient between the slider 9 and the cover 8.1, and the fixed driving force of the driving device is sufficient to drive the slider 9 to slide again, thereby further realizing precise heat dissipation of the high-power component.

[0074] It should be noted that the fixed driving force of the driving device can be determined by the gravity of the shell 2 and the friction coefficient between the cover 8.1 and the slider 9 under different conditions, so that the driving device can pull the slider 9 when the hydrogel swells, but cannot pull the slider 9 when the hydrogel deswells.

[0075] It should also be noted that the phase change temperature of the deformable material 8.3 can be adjusted according to its composition and preparation process. In the present invention, the deformable material 8.3 with a suitable phase change temperature can be selected according to the optimal working temperature of the component.

[0076] If the water tank 8 is completely connected to the bottom of the shell 2 over a large area, the heat at the bottom of the shell 2 will be quickly introduced into the water. If the volume of the water tank 8 is small, the water in the water tank 8 will heat up quickly. If the temperature is too high, the cooling rate will slow down and the cooling effect will be poor.

[0077] It should be noted that the low-temperature fluid input into the housing 2 can cool the interior thereof. Under normal circumstances, there is no need to dissipate heat through the slider 9. However, when the temperature of multiple parts is too high, the cooperation of the slider 9 and the water tank 8 can be used to concentrate the cooling capacity of the water cooling to quickly solve the problem of the overheating parts. The phase change temperature of the deformable material 8.3 can be set according to the temperature requirement.

[0078] It is understandable that in order to avoid excessive friction on the slider 9 due to excessive mass of the housing 2, an elastic support can be provided at the bottom of the housing 2 to adjust its positive pressure. In order to facilitate water absorption and drainage of the thermosensitive hydrogel, a plurality of water-permeable holes are provided on the sawtooth structure to facilitate water inflow and outflow of the recessed portion.

[0079] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A power load monitoring device, characterized in that: It comprises a collection unit (1.1), an execution unit (1.2) and a control unit, wherein the collection unit (1.1) is used to collect the electricity quantity, voltage, current and power data of the user end and send it to the power load monitoring main station, and the execution unit (1.2) is used to execute power restriction or peak load regulation instructions on the user end according to the command of the power load monitoring main station; The collection unit (1.1) and the execution unit (1.2) are respectively installed in different shells (2); a slide rail (3) is installed on the top of the shell (2); a refrigeration unit is installed on the slide rail (3); the refrigeration unit comprises a telescopic device (4.2) and a storage bottle (4.3); the telescopic device (4.2) is connected to the slide rail (3) via a sliding vehicle (4.1) equipped with a servo motor; the storage bottle (4.3) is installed on the telescopic device (4.2); a gas transmission unit (5) is installed around each shell (2); An exhaust duct is installed on the top of each shell (2), and a temperature measuring device for testing the temperature distribution in the shell (2) is arranged in the shell (2). The control unit controls the sliding vehicle (4.1) to move to the top of the air inlet (5.1) of the gas transmission unit (5) closest to the part with the highest temperature in the shell (2) based on the data collected by the temperature measuring device, and the telescopic device (4.2) descends and inputs the low-temperature fluid stored in the storage bottle (4.3) into the shell (2) through the gas transmission unit (5).

2. The power load monitoring device according to claim 1, characterized in that: The temperature measuring device comprises a plurality of temperature measuring units, each of which comprises a temperature measuring module and a switch module. The temperature measuring module comprises a temperature-sensitive hydrogel wrapped by an elastic film (6.1), the elastic film (6.1) being attached around the components of the execution unit (1.2) and the collection unit (1.1). The switch module comprises a touch switch (6.2), a piston (6.3) and a water storage chamber (6.4). The piston (6.3) is sealingly and slidably connected to the water storage chamber (6.4). The water storage chamber (6.4) and the temperature-sensitive hydrogel inside the elastic film (6.1) are connected via a liquid guide tube (6.5). A conductor (6.6) is installed on the top of the piston (6.3), and the touch switch (6.2) is arranged on the top of the conductor (6.6). When the temperature of the component where the thermosensitive hydrogel inside the elastic membrane (6.1) is located is higher than the phase change temperature, the thermosensitive hydrogel deswells, and the liquid in the elastic membrane (6.1) moves along the liquid guide tube (6.5) to the water storage chamber (6.4) under the action of elastic force, pushing up the piston (6.3) so that its top conductor (6.6) contacts the touch switch (6.2), and the touch switch (6.2) is turned on to send an electrical signal to the control unit.

3. The power load monitoring device according to claim 1, characterized in that: The temperature measuring device comprises a plurality of temperature measuring units, each of the temperature measuring units comprises an insulating heat-conducting layer and a thermistor, the thermistors of the plurality of temperature measuring devices are attached around the components of the execution unit (1.2) and the collection unit (1.1) via their insulating heat-conducting layers, and the temperature distribution of the execution unit (1.2) and the collection unit (1.1) is determined by measuring the resistance values ​​of the thermistors of the plurality of temperature measuring devices.

4. The power load monitoring device according to claim 1, characterized in that: The slide rail (3) is in the shape of a figure eight, and a vertical projection of the slide rail (3) falls into the air inlets (5.1) of all the air delivery units (5).

5. The power load monitoring device according to claim 1, characterized in that: The gas transmission unit (5) comprises a fluid storage portion (5.2), wherein the fluid storage portion (5.2) is used to store low-temperature fluid.

6. The power load monitoring device according to claim 1, characterized in that: The air inlet (5.1) of the air delivery unit (5) is surrounded by a planar structure (5.3); the mouth of the storage bottle (4.3) is provided with a gas delivery device, the gas delivery device comprising a first cylinder (7.1) and a second cylinder (7.2) which are connected to each other; the diameter of the first cylinder (7.1) is larger than the diameter of the second cylinder (7.2); the first cylinder (7.1) and the inner wall of the mouth of the storage bottle (4.3) are sealed and slidably connected; a through hole is formed on the side wall of the first cylinder (7.1); and a through hole is formed on the surface of the second cylinder (7.2) away from the first cylinder (7.1); When the telescopic device (4.2) drives the storage bottle (4.3) to move downward, the second cylinder (7.2) is inserted into the gas inlet (5.1) of the gas transmission unit (5), and the planar structure (5.3) abuts against the first cylinder (7.1), thereby pressing the entire gas transmission device upward, so that the through hole of the first cylinder (7.1) is connected to the low-temperature fluid in the storage bottle (4.3), and the low-temperature fluid enters the gas transmission unit (5) through the through hole of the first cylinder (7.1) and the through hole of the second cylinder (7.2).

7. The power load monitoring device according to claim 6, characterized in that: A disc (7.3) having a larger diameter than that of the first cylinder (7.1) is mounted on the surface of the first cylinder (7.1) away from the second cylinder (7.2); the disc (7.3) is used to engage with the inner edge of the bottle mouth of the storage bottle (4.3) to prevent the first cylinder (7.1) from sliding out of the bottle mouth of the storage bottle (4.3).

8. The power load monitoring device according to claim 7, characterized in that: The disc (7.3) is made of rubber.

9. The power load monitoring device according to claim 1, characterized in that: The air inlet (5.1) of the air delivery unit (5) is provided with a multi-petal sealing structure made of elastic material; when no force is applied to the multi-petal sealing structure, the multi-petal sealing structure contacts each other to seal the air inlet (5.1) of the air delivery unit (5); when force is applied to the sealing structure, the multi-petal sealing structure can separate from each other to open the air inlet (5.1) of the air delivery unit (5).

Images