Unattended mobile power supply

Abstract

The application relates to a power supply device, which discloses an unattended mobile power supply device, comprising: a cabin top wall at one end in the length direction of the cabin, wherein a unique fresh air inlet of the cabin is formed, and a heat dissipation flow channel for blowing the generator set is formed between the fresh air inlet and a cabin door; the cabin door is formed on the end wall at the other end in the length direction of the cabin; the generator set is detachably installed in the cabin; a fresh air unit is formed as a detachable module and is installed at the fresh air inlet; a safety monitoring unit is arranged in the cabin for monitoring the safety of production in the cabin; an automatic supply unit is used for automatic supply of the unattended mobile power supply device; a pre-starting unit is used for preheating the cooling liquid of a cooling system and the lubricating oil of a lubricating system before starting the generator set; and a control unit is used for controlling the linkage operation of the cabin door, the generator set, the fresh air unit, the safety monitoring unit, the automatic supply unit and the pre-starting unit. The application has the functions of high protection, high-efficiency heat dissipation, intelligent safety, automatic supply and pre-starting, and can be applied to various working conditions.

Description

Technical Field

[0001] This invention relates to a power supply device, and more particularly to an unattended mobile power supply device. Background Technology

[0002] Mobile power supply equipment serves as a core power supply device for emergency power supply, field operations, disaster relief, temporary construction, and small power stations (grids). It integrates generator sets, power distribution control, heat dissipation, and auxiliary systems, enabling rapid deployment and providing stable power output. It plays an irreplaceable role in scenarios such as grid outages, power supply in remote areas, and power supply for large-scale events. However, as application scenarios extend to harsh environments such as high temperature, high humidity, dust, and strong vibration, and as the demand for low noise, safety, unattended operation, and long-term continuous operation continues to increase, the shortcomings of existing mobile power generation devices in terms of structure, thermal management, safety protection, and automated operation and maintenance are becoming increasingly prominent, making it difficult to meet high-standard usage requirements.

[0003] Existing mobile power supply equipment generally suffers from the following technical problems that need to be solved: 1) Existing mobile power supply equipment focuses on structural strength in its cabin, but lacks sufficient design in terms of heat insulation, noise reduction, vibration reduction, wind and sand protection, insect protection, and anti-static properties. It is difficult to achieve a high level of protection and cannot be used in various extreme and complex working environments. In particular, it cannot work stably in extreme high (or low) temperature, wind and sand, insect-infested, and dry working environments. Existing unattended mobile power supply equipment has a high failure rate and short lifespan in extreme and complex environments, and cannot provide long-term stable power supply.

[0004] 2) Existing mobile power supply equipment cooling systems are primarily designed to ensure heat dissipation, without considering the functional requirements of long-term, unattended operation in remote, field scenarios. Therefore, when applied to such scenarios, existing mobile power supply equipment cooling systems generally present the following technical problems that need to be addressed: 1) The fresh air unit of the existing heat dissipation system is only a simple ventilation structure. It usually adopts an integrated air box with air intake and exhaust functions. The integrated air box only exchanges air for the entire mobile power supply equipment cabin (hot air is exhausted and fresh air is introduced), without heat dissipation for the generator set. The heat of the generator set will accumulate, resulting in extremely low heat dissipation efficiency.

[0005] 2) The existing integrated air box of the heat dissipation system adopts two fixed installation methods: The first type involves a fixed installation of an integrated bellows inside the mobile power supply equipment compartment. This installation method occupies internal space within the mobile power supply equipment compartment, which is not conducive to the arrangement of other components of the mobile power supply equipment, nor is it conducive to the miniaturization of the mobile power supply equipment compartment.

[0006] The second method involves fixing the integrated bellows to the outer wall of the mobile power supply equipment cabin. This installation method is cumbersome to install and maintain, and involves a large workload. Furthermore, it results in the mobile power supply equipment cabin being a non-standard component, requiring the removal of the integrated bellows fixed to the outside of the mobile power supply equipment cabin during transportation, which limits the convenience of transporting the mobile power supply equipment.

[0007] 3) Existing mobile power supply equipment is mainly used for emergency power supply and operates in isolation. The design does not consider the scenario of multiple unattended mobile power supply units being centrally connected to the grid, nor does it consider the scenario of long-distance unattended operation in the field. When multiple unattended mobile power supply units are centrally connected to the grid and operating unattended, the close proximity of their deployment places higher demands on safety monitoring than in isolated operation. Existing monitoring systems only have basic parameter display functions and lack real-time monitoring of multiple dimensions such as gas, harmful gases, smoke, and temperature; there is no linkage control mechanism between gas anomalies, fires, abnormal operating conditions, and fresh air cooling and power generation units, making early warning and automatic handling impossible; video surveillance does not incorporate visual intelligent judgment and relies on manual inspection, resulting in high safety risks in unattended scenarios.

[0008] 4) Existing mobile power supply equipment is highly dependent on manual operation for replenishment and startup: fuel / gas, lubricating oil, and coolant are mostly checked and added manually on a regular basis. It is impossible to automatically trigger replenishment based on liquid level and pressure. This is not suitable for the working conditions of multiple sets of unattended mobile power supply equipment being centrally connected to the grid and operating unattended in the field at a long distance. This results in high maintenance difficulty and cost. In addition, the preheating, cooling and lubrication systems before startup are mostly operated manually. Starting is difficult in low temperature or extreme environments, which can easily cause wear and tear on the generator set, startup failure, and affect response speed and equipment durability.

[0009] In summary, existing mobile power supply equipment has significant shortcomings in key areas such as integrated cabin protection, directional and efficient heat dissipation, fully automated safety monitoring, unmanned resupply and pre-start, and rapid maintenance. These shortcomings restrict the continuous and stable operation of the equipment in harsh environments, its level of intelligence, and the convenience of operation and maintenance. It also makes it difficult to meet the high reliability, minimal manpower, and strong adaptability requirements of emergency power supply and long-term field operations. Therefore, developing an unattended mobile power supply device that can be towed by a motor vehicle and possesses high protection, efficient heat dissipation, intelligent safety, automatic resupply and pre-start capabilities has become an urgent technical problem to be solved in this field. Summary of the Invention

[0010] The summary of this invention introduces a series of simplified concepts, all of which are simplifications of existing technologies in the field, and will be further explained in detail in the detailed description section. This summary is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0011] To address the technical problems existing in the prior art, this invention provides an unattended mobile power supply device with high protection, efficient heat dissipation, intelligent safety, automatic replenishment and pre-start capabilities, suitable for various working conditions (especially high temperature or extreme cold).

[0012] To solve the above-mentioned technical problems, the present invention provides an unattended mobile power supply device, comprising: Cabin, generator set, fresh air unit, safety monitoring unit, automatic supply unit, pre-start unit, and control unit; The cabin, which provides an environment for power conversion, has at least an IP54 protection rating. The top wall at one end of the cabin along its length forms the cabin's only fresh air inlet, and a heat dissipation channel for blowing the generator set is formed between the fresh air inlet and the cabin door. The hatch is formed on the end wall at the other end of the length of the cabin, serving as the cabin's only air outlet; A generator set, which is detachably installed inside the cabin, is used to convert combustible oil and gas into electrical energy output; The fresh air unit is formed as a detachable module and is installed at the fresh air inlet to provide fresh air to the cabin. A safety monitoring unit is installed inside the cabin to monitor production safety within the cabin. Automatic replenishment unit, used for automatic replenishment of unattended mobile power supply equipment; A pre-start unit that starts according to the external environment and / or the power conversion environment, preheating the coolant of the cooling system and the lubricating oil of the lubrication system before the generator set starts; It should be further noted that in extreme low-temperature environments, the coolant may solidify or lose fluidity before cold start due to low temperature. The lowest freezing point of commonly used coolants is -45 degrees Celsius, but the choice of coolant is usually determined based on the common scenarios. Coolants with a freezing point of -45 degrees Celsius are usually not used; coolants with a freezing point of -15 degrees Celsius to -20 degrees Celsius are more common. However, this invention needs to be moved to a designated location and needs to meet various operating conditions. In order to avoid the coolant temperature being too low and affecting the performance of the generator set, a preheating function for the coolant is designed. The control unit is used to control the coordinated operation of the hatch, generator set, fresh air unit, safety monitoring unit, automatic replenishment unit, and pre-start unit. It should be noted that the control unit can be set up inside the control compartment of the cabin, or it can be set up remotely and controlled by a communication module to control the coordinated operation of the hatch, generator set, fresh air unit, safety monitoring unit, automatic replenishment unit, and pre-start unit.

[0013] Optionally, the unattended mobile power supply equipment can be further improved by dividing the cabin into a control cabin and a working cabin, with an isolation wall between them. A safety escape door is formed on the isolation wall, and the isolation wall and safety escape door have fireproof, heat insulation, sound insulation, and radiation protection functions, including: The bulkhead is used to isolate the electrical energy conversion environment from the external environment. It has functions such as heat insulation, noise reduction, vibration reduction, wind and sand protection, radiation protection, insect protection, and antistatic properties. Radiation refers to electromagnetic radiation. A guide rail, formed at the bottom of the work compartment, is used to support and install the generator set; preferably, a shock-absorbing device, such as at least one layer of rubber shock absorber, is formed between the guide rail and the generator set to effectively isolate vibration, reduce noise, and protect the equipment; The cable trays are formed in the compartments on both sides of the generator set, and they form a clearance structure to allow space for the heat dissipation channels inside the compartments; the cable trays are also equipped with grounding devices to discharge static electricity generated by electromagnetic radiation. The hoisting section is formed on the top wall of the cabin and is located above the generator set working position. Because the cabin space is limited and the generator set components are heavy, the replacement of generator set components in the prior art requires the generator set to be completely disassembled or moved out of the cabin. Therefore, the present invention designs a hoisting section to reduce the workload of replacing generator set components and improve work efficiency. The maintenance door is located on both sides of the cabin, directly opposite the generator set's working position; preferably, the size of the maintenance door corresponds to the size of the generator set. The hatch is designed as a check valve, allowing airflow to pass through it from inside the cabin to outside.

[0014] Optionally, the unattended mobile power supply equipment can be further improved, and the hatch includes: louvers, biological protection nets, and sound-absorbing panels arranged side by side from the outside to the inside of the hatch.

[0015] Optionally, the unattended mobile power supply equipment can be further improved. When the louvers are electrically controlled, they are linked with the generator set. According to the control unit's instructions, the louvers open to a specified angle when the generator set starts and close when the generator set stops.

[0016] Optionally, the unattended mobile power supply equipment can be further improved by covering the part of the generator set's exhaust pipe inside the cabin with a heat insulation layer to prevent heat from the exhaust pipe from being released into the cabin.

[0017] Optionally, the unattended mobile power supply equipment can be further improved by having the air inlet of the fresh air unit face the ground and be equipped with a biological-proof net. The design of the air inlet of the fresh air unit facing the ground is particularly suitable for sandy environments, as it can prevent sand from being blown directly into the air inlet. The air outlet of the fresh air unit is located inside the cabin, facing the generator set. Preferably, the air outlet faces the upper part of the generator set. It is equipped with a guide plate to guide the fresh air entering the cabin to form a heat dissipation channel and guide it to the cabin door for discharge.

[0018] Optionally, the unattended mobile power supply equipment can be further improved, and the safety monitoring unit includes: a gas monitoring subunit, a fire monitoring subunit, and a video monitoring subunit; The gas monitoring subunit monitors the concentration of combustible and harmful gases inside the cabin. Based on these concentrations, it triggers the linkage between the fresh air unit and the generator set. Since the cabin has an IP54 protection rating, combustible and harmful gases may accumulate inside after prolonged unattended operation. Sparks from metal impacts, electric arcs from equipment, and unauthorized personnel entry can all pose safety hazards. Therefore, this invention designs the gas monitoring subunit to avoid these hazards. The linkage between the fresh air unit and the generator set can be directly implemented through hardware. For example, if the sensor detects that the concentrations of combustible and harmful gases reach a specified threshold, the sensor triggers the linkage between the fresh air unit and the generator set; or, if the sensor detects the concentrations of combustible and harmful gases, the control unit performs a logical judgment based on the pre-stored judgment rules, and the control unit triggers the linkage between the fresh air unit and the generator set. The fire monitoring subunit is used to monitor smoke and temperature inside the cabin, triggering the linkage between the fresh air unit and the generator set. In situations where multiple sets of unattended mobile power supply equipment are centrally connected to the grid and operate remotely in the field without human intervention, the requirements for fire alarms are significantly higher than for independently operating unattended mobile power supply equipment. In such situations, if a fire occurs in one set of unattended mobile power supply equipment, it will cause huge losses due to the spread of electrical fire. Therefore, it is necessary to quickly alarm when a fire occurs in one set of unattended mobile power supply equipment and immediately shut down and disconnect from the power supply network. The linkage of the fire monitoring subunit can be directly implemented through hardware. For example, if the fire sensor detects high temperature and / or dense smoke, the fire sensor triggers the generator set to shut down and disconnect from the grid. Alternatively, if the fire sensor detects high temperature and / or dense smoke, the control unit's logic will judge the situation, and the control unit's pre-stored judgment rules will eliminate false fire alarms. The control unit will then trigger the generator set to shut down and disconnect from the grid.

[0019] The video monitoring subunit is used to monitor the working conditions inside the cabin. After the visual model of the control unit judges the situation, it can trigger the linkage between the fresh air unit and the generator set. The video monitoring subunit can be used for remote control, or it can trigger the linkage between the fresh air unit and the generator set through preset video recognition technology. For example, if the video monitoring subunit detects personnel or animals entering the cabin, it will trigger the generator set to shut down to ensure personnel safety or prevent equipment from being damaged by animals; if the monitoring subunit detects dense smoke inside the cabin, it will trigger the generator set to shut down; or the monitoring subunit will trigger the generator set to shut down after logically judging the signals from the fire monitoring subunit to eliminate false judgments.

[0020] The automatic replenishment unit includes: an automatic replenishment subunit for combustible oil and gas, an automatic replenishment subunit for lubricating oil, and an automatic replenishment subunit for coolant; The combustible gas supply subunit triggers external combustible gas supply based on the amount of combustible gas stored in the oil and gas buffer section. The automatic lubricating oil replenishment subunit triggers external lubricating oil replenishment based on the lubricating oil pressure in the pipeline and / or the lubricating oil level in the lubricating oil buffer section. Lubricating oil will be lost during the long-term operation of the generator set, and lack of lubrication will cause damage to the generator set. Therefore, it is necessary to realize automatic lubricating oil replenishment. However, the existing unattended mobile power supply equipment does not need to consider the safety hazards caused by lubricating oil loss because it operates in isolation and is operated by a person. The coolant replenishment subunit triggers external coolant replenishment based on the coolant pressure in the pipeline and / or the coolant level in the coolant buffer section.

[0021] Optionally, the unattended mobile power supply equipment can be further improved by having a pre-start unit that acquires external environmental data based on local sensors and / or communication modules, and starts the cooling system and lubrication system based on the external environmental data. In extreme environments, such as prolonged high temperatures, prolonged low temperatures, or large temperature differences between day and night, the unattended mobile power supply equipment may be damaged if started directly. For example, prolonged low temperatures can cause cylinder scoring and equipment damage due to the high viscosity of the lubricating oil at low temperatures and / or insufficient lubrication of the generator set piston (lubricating oil slipping due to gravity). Pressurizing and heating the lubrication system can reduce the viscosity of the lubricating oil, increase its fluidity, and allow it to fill all parts of the lubrication system. During prolonged periods of high temperature, the cooling system needs to be pre-started to prevent a sharp increase in cooling pipe pressure caused by generator start-up, which could pose a safety hazard. The coolant flows in the cooling system, and when the pressure in the pipes increases due to the increase in coolant volume at high temperatures, the system pressure is relieved through the liquid buffer section (buffer tank) to prevent pipe bursts. Correspondingly, large temperature differences between day and night will affect whether the generator set starts with a pre-start cooling system or a pre-start lubrication system. An oil and gas buffer section is located on the oil or gas supply pipeline of the generator set to prevent emergency shutdown caused by sudden oil or gas interruption. The oil circuit buffer section is located on the lubrication system pipeline and is used to balance changes in lubricating oil volume and pressure. The liquid buffer section is located on the cooling system piping and is used to balance changes in coolant volume and pressure.

[0022] Optionally, further improvements to the unattended mobile power supply equipment may include: The breathing oil and gas treatment subunit is connected to the lubrication system pipeline. It separates the oil vapor from the lubrication system. The separated lubricating oil is circulated back to the lubrication system, while the separated gas and moisture are discharged from the compartment, thus avoiding lubricating oil loss and environmental pollution.

[0023] The working principle of the above technical solution is as follows: This invention's unattended mobile power supply equipment uses a motor vehicle trailer as its carrier and employs a modular integration + directional flow channel heat dissipation + multi-dimensional intelligent monitoring + fully automated operation and maintenance mechanism. The cabin adopts an integrated structure of heat insulation / noise reduction / vibration reduction / antistatic / IP54 high protection, and is divided into a control cabin and a working cabin with fireproof isolation. The interior forms a unidirectional heat dissipation channel of top air intake → directional airflow → end door exhaust. The fresh air unit is a detachable module with an air inlet facing downwards and equipped with a filter. The air outlet is directed towards the generator set via a deflector plate and works in conjunction with an electrically linked louvered door to achieve forced convection cooling. The generator set can be quickly disassembled and assembled, and the high-temperature pipelines are covered with a heat insulation layer to reduce heat accumulation inside the cabin; The safety monitoring unit uses intelligent triple monitoring of gas, fire, and video to trigger the fresh air and power generation units to perform early warning / shutdown / exhaust in case of abnormalities; The automatic replenishment unit automatically replenishes combustible oil, lubricating oil, and coolant according to the liquid level / pressure. The pre-start unit preheats / cools / lubricates in advance based on environmental data, and works in conjunction with the oil / liquid circuit buffer and the breathing oil and gas treatment unit to achieve reliable start-up in extreme environments, long-term stable operation, and unattended operation.

[0024] Based on the above technical solution, the present invention can achieve at least the following technical effects; 1) Existing mobile power supply equipment focuses only on structural strength, lacks integrated multi-protection design, positive pressure flow channel and check valve, making it easy for sand, water vapor, insects and rodents to enter, unable to stably achieve IP54, and prone to failure and shutdown in extreme environments.

[0025] The cabin of this invention integrates heat insulation, noise reduction, vibration reduction, wind and sand protection, insect prevention, and anti-static properties. The cabin door is formed as a multi-layered structure of electric or manual louvers, anti-biological netting, and sound-absorbing panels. The louvers open when the generator set is working and close when the generator set stops, preventing sand, insects, and other contaminants from entering the cabin. The fresh air unit serves as the sole air intake, creating positive pressure within the cabin when the generator set is working to prevent sand, insects, and other contaminants from entering. The cabin of this invention has an IP54 protection rating, and its continuous trouble-free operation time in high-temperature, windy, sandy, and high-humidity environments is more than 50% longer than that of traditional models. Static electricity inside the cabin can be discharged through the anti-static netting, eliminating the risk of static electricity sparking. The continuous operation time of this invention in extreme environments is ≥50% longer than that of existing technologies.

[0026] 2) Existing mobile power supply equipment uses a fixed, non-removable fresh air module. The integrated structure of the fresh air unit, which only allows air in and out, ventilates the entire mobile power supply equipment cabin, leading to heat accumulation, hot air short-circuiting, and extremely low heat dissipation efficiency. In this invention, the single fresh air intake unit and the single exhaust door are respectively located at both ends of the cabin's length. The fresh air unit's inlet faces downwards to prevent sand accumulation, and the exhaust deflector directs airflow, forming a through-flow channel within the cabin to purge the generator set. Heat is unidirectionally exhausted through the door, and further, through the linkage between the electric louvers and the generator set, ensures unobstructed exhaust. Under the same load, the heat dissipation efficiency of this invention is 40% higher than natural ventilation. The generator set of this invention has no risk of overheating and load reduction, or high-temperature protection shutdown. Under the same load, the heat dissipation efficiency of this invention is ≥40% higher than existing technologies, and the generator set's full-load operating temperature is ≥15℃ lower.

[0027] 3) The main application scenario of existing mobile power supply equipment is emergency power supply, and it is mostly operated in isolation. The design does not consider the working conditions of multiple sets of unattended mobile power supply equipment connected to the grid, nor does it consider the working conditions of unattended operation in the field at a long distance.

[0028] This invention enables the coordinated operation of the control cabin door, generator set, fresh air unit, safety monitoring unit, automatic replenishment unit, and pre-start unit via a control unit, either on-site or remotely. It is particularly suitable for long-term unattended operation scenarios. It can achieve long-term operation in a semi-automatic (requiring manual command) or fully automatic (based on a preset program) manner, without relying on manual inspection or on-site operation, and can provide stable and safe power supply under long-term unattended centralized grid-connected conditions.

[0029] For example, the safety monitoring unit of this invention provides triple monitoring: combustible / harmful gases, smoke / temperature, and video AI visual judgment; any abnormality triggers immediate action: start strong exhaust, shut down, or disconnect from the network. The gas leak, fire, and abnormal operating condition recognition rate of this invention is ≥99%; the response time from abnormality to shutdown / exhaust is ≤1 second; and there is no risk of cascading fires when multiple units are connected in parallel.

[0030] 4) Existing mobile power supply equipment relies on manual periodic checks of fuel, lubricating oil, and coolant, and manual replenishment of fuel, lubricating oil, and coolant. There is no automatic detection and replenishment, and it cannot operate for a long time in remote, unattended conditions in the field.

[0031] This invention designs an automatic replenishment unit that automatically triggers replenishment based on the buffer liquid level and / or pipeline pressure; it covers combustible oil and gas, lubricating oil, and coolant; it eliminates the need for manual opening of the cover for inspection and replenishment, automatically replenishing the three media, increasing the continuous running time supported by a single replenishment by more than 3 times, and reducing the frequency of manual inspection by 80%; it eliminates the risk of generator set seizure, cylinder scoring, and pipe bursting caused by insufficient oil / liquid.

[0032] 5) Existing mobile power supply equipment lacks an environmental adaptive pre-start scheme, suffers from poor lubrication at low temperatures and sudden pressure changes at high temperatures, resulting in difficult start-up, significant wear, and a high failure rate.

[0033] The pre-start unit of this invention preheats the lubricating oil and coolant according to the ambient temperature, providing a suitable working environment for the generator set; the breathing oil vapor treatment unit separates and recirculates the oil vapor. In extreme high and low temperature environments (-20°C to 55°C), the first-time start-up success rate is ≥99%; the wear of key friction pairs is reduced by more than 60%; and the equipment overhaul cycle is extended.

[0034] 6) The existing mobile power supply equipment is mostly in the form of ordinary containers, without dedicated guide rails, hoisting positions, or alignment maintenance doors. Disassembly and assembly are difficult, the construction period is long, and the airflow organization is easily disrupted after maintenance.

[0035] The invention features a bottom guide rail, a top hoisting structure, and a side maintenance door; the cable tray is designed to avoid obstructing the flow path; the generator set can be entered as a whole along the guide rail; and the hoisting structure solves the technical problem of not being able to manually lift and install parts in a confined space when replacing parts, enabling quick installation and disassembly and reducing maintenance time by ≥70%. Attached Figure Description

[0036] The accompanying drawings are intended to illustrate the general characteristics of the methods, structures, and / or materials used in specific exemplary embodiments of the invention, supplementing the description in the specification. However, the drawings are schematic diagrams not drawn to scale and may not accurately reflect the precise structural or performance characteristics of any of the given embodiments. The drawings should not be construed as limiting or restricting the range of numerical values ​​or properties covered by exemplary embodiments of the invention. The invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0037] Figure 1 This is the control logic block diagram of the present invention.

[0038] Figure 2 This is a schematic diagram of the external structure of the present invention.

[0039] Figure 3 This is a schematic diagram of the internal partitioning of the present invention.

[0040] Figure 4 This is a schematic diagram of the hatch of the present invention.

[0041] Figure 5 This is a schematic diagram of the fresh air unit of the present invention.

[0042] Explanation of reference numerals in the attached figures: Cabin 1; Control cabin 1.1; Work compartment 1.2; Cabin door 1.4; Guide rail 1.5; Venetian blinds 1.6; Biological defense netting 1.7; 1.8 muffler; Deflector plate 1.9; Generator set 2; Fresh air unit 3; Security monitoring unit 4; Automatic supply unit 5; Pre-start unit 6; Control Unit 7; Detailed Implementation

[0043] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can fully understand other advantages and technical effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through different specific embodiments, and various details in this specification can also be applied based on different viewpoints, with various modifications or changes made without departing from the overall design concept of the invention. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. The following exemplary embodiments of the present invention can be implemented in many different forms and should not be construed as being limited to the specific embodiments set forth herein. It should be understood that these embodiments are provided to make the disclosure of the present invention thorough and complete, and to fully convey the technical solutions of these exemplary embodiments to those skilled in the art. It should be understood that when an element is referred to as "connected" or "combined" to another element, the element can be directly connected or combined to the other element, or there may be intermediate elements. The difference is that when an element is referred to as "directly connected" or "directly combined" to another element, there are no intermediate elements. Throughout the drawings, the same reference numerals always denote the same elements. Example

[0044] This invention provides an unattended mobile power supply device that can be towed by a motor vehicle, is suitable for extreme environments, and supports long-term unattended operation. It fully realizes high cabin protection, directional and efficient heat dissipation, multi-dimensional safety monitoring, fully automatic replenishment, and adaptive pre-start functions. The specific structure and working method are described below: The unattended mobile power supply equipment provided in this embodiment is referenced. Figure 1 Combination Figure 2 As shown, it includes: cabin 1, generator set 2, fresh air unit 3, safety monitoring unit 4, automatic supply unit 5, pre-start unit 6, and control unit 7; Cabin 1, used to provide an environment for power conversion, has at least an IP54 protection rating. The top wall at one end of the length direction of cabin 1 forms a unique fresh air inlet for cabin 1. A heat dissipation channel for blowing the generator set is formed between the fresh air inlet and the cabin door 1.4. The hatch 1.4 is formed on the end wall at the other end of the length direction of the cabin 1, serving as the only air outlet of the cabin; Generator set 2, which is detachably installed in the cabin 1, is used to convert combustible oil and gas into electrical energy output; Fresh air unit 3 is a detachable module installed at the fresh air inlet to supply fresh air to cabin 1. There are two installation methods for fresh air unit 3: the first is an external mounting type, where an installation port is provided on the top wall of one side of cabin 1, and the airflow guiding structure of fresh air unit 3 extends into cabin 1 through the installation port. This method is particularly suitable for field working environments. The second is an integrated type, where fresh air unit 3 is installed inside cabin 1, with only its air inlet located on or extending out of cabin 1. This method is particularly suitable for working environments where cabin 1 is of standard container size and requires long-distance transportation. Safety monitoring unit 4 is arranged inside the cabin to monitor production safety inside the cabin; existing technologies such as cameras and video recording matrices can be selected for the safety monitoring unit, and its use in sending audio and video data to the control unit is not the focus of this invention. Automatic supply unit 5, which is used for automatic supply of unattended mobile power supply equipment; The pre-start unit 6 is activated according to the external environment and / or the power conversion environment, and preheats the coolant of the cooling system and the lubricating oil of the lubrication system before the generator set is started. Control unit 7 is used to control the linkage operation of hatch 1.4, generator set 2, fresh air unit 3, safety monitoring unit 4, automatic supply unit 5 and pre-start unit 6.

[0045] Based on the above overall design concept, the preferred implementation of each component of the unattended mobile power supply equipment provided in the first embodiment is further described; I. Preferred embodiment of cabin 1; The cabin of this invention meets the IP54 protection level and has functions of heat insulation, noise reduction, vibration reduction, wind and sand protection, radiation protection, insect protection, and antistatic properties. The bulkhead adopts a multi-layer composite structure. Heat insulation is achieved through the heat insulation layer integrated into the bulkhead. Noise reduction is achieved through the sound-absorbing cotton layer or sound-absorbing mesh layer integrated into the bulkhead. Vibration reduction is achieved through the buffer layer integrated into the bulkhead. Wind and sand protection is achieved through the single fresh air inlet (the air inlet of the fresh air unit). Insect prevention is achieved through the insect-proof net on the door. Radiation protection net and anti-static net (metal mesh) integrated into the bulkhead are also used. refer to Figure 3As shown, the interior of the cabin is divided into a control cabin 1.1 and a working cabin 1.2. The control cabin is located on the opposite side of the cabin door 1.4. A fireproof isolation wall with a safety escape door is installed between the two cabins. It has fireproof, heat insulation, sound insulation and radiation protection functions to prevent the working cabin from causing harm to the operators when it is working. The bottom of the working compartment is equipped with a guide rail 1.5, and at least one layer of rubber shock absorber is installed between the guide rail 1.5 and the generator set 2 for bearing and quick assembly / disassembly of the generator set 2.

[0046] Cable trays are installed in the compartments on both sides of generator set 2. The cable trays have a clearance structure to avoid obstructing the heat dissipation channels in the compartments. The cable trays are equipped with grounding devices to discharge static electricity.

[0047] A hoisting section is installed on the top wall of the cabin, directly above the generator set, for hoisting and maintenance in confined spaces.

[0048] Maintenance doors 1.3 are provided on both sides of the cabin 1, directly opposite the generator set. The size of maintenance doors 1.3 matches that of generator set 2, facilitating quick maintenance.

[0049] The hatch 1.4 is designed as an airflow check valve, through which airflow flows from inside the cabin to outside, and the airflow inside the cabin can only be discharged through the hatch in one direction from inside to outside, thus forming positive pressure protection; refer to Figure 4 As shown, the hatch 1.4 has a three-layer structure consisting of louvers 1.6, a biological barrier net 1.7, and a sound-absorbing panel 1.8. The louvers 1.6 are electrically controlled and linked to the generator set 2; preferably, as... Figure 4 As shown, the blades of the louver 1.6 rotate to a specified angle according to the wind direction to prevent wind and sand from directly entering the cabin; preferably, the opening angle of the louver 1.6 is positively correlated with the working power of the generator set 2, and the control of the opening angle of the louver 1.6 and the working power of the generator set 2 is realized by the control unit. When generator set 2 starts, the louvers open to a specified angle; when it stops, they close automatically to prevent wind, sand, and insects from entering.

[0050] II. Preferred embodiment of generator set 2; Generator set 2 is a fuel oil or gas generator set. Generator set 2 can be quickly pushed in / pulled out along guide rail 1.5, and with the help of the top hoisting part, the parts can be quickly replaced and maintained.

[0051] Preferably, the exhaust pipe of the generator set is fully covered with a heat insulation layer in the inner section of the cabin to prevent heat from dissipating into the cabin.

[0052] III. Preferred embodiment of fresh air unit 3; The fresh air unit 3 provided by this invention is formed as a detachable module, externally mounted on the outer wall of the top of the cabin opposite the door, and can be removed for transportation or maintenance replacement. (See reference) Figure 5 As shown; The air inlet of the fresh air unit 3 faces the ground and has a built-in anti-biological mesh 1.7. Alternatively, the air inlet can be equipped with louvers 1.6 + anti-biological mesh 1.7 to reduce the direct inhalation of wind, sand or insects. The air outlet is located inside the cabin, directly facing the upper part of generator set 2. It is equipped with a guide vane 1.9 to guide the fresh air into a one-way heat dissipation channel with top air intake → flow through the upper part of generator set 2 → exhaust through the cabin door. Fresh air unit 3 serves as the only fresh air inlet in the cabin, maintaining positive pressure inside the cabin and preventing external dust and moisture from intruding.

[0053] IV. Preferred Implementation of the Security Monitoring Unit; The security monitoring unit provided by this invention preferably includes the following sub-units: 1) Gas monitoring subunit: Real-time monitoring of the concentration of combustible and harmful gases in the cabin. If the concentration exceeds the standard, it will immediately trigger: start the fresh air unit for forced ventilation and shut down the generator set; 2) Fire monitoring subunit: Monitors smoke and temperature inside the cabin, and triggers the following when a fire occurs: alarm, forced ventilation, generator shutdown, grid connection and disconnection, to prevent the fire from spreading; 3) The video monitoring subunit collects images of the cabin in real time, automatically judges abnormal operating conditions through a visual AI model, and links the fresh air unit and generator set to perform early warning, shutdown and ventilation operations, supporting remote monitoring.

[0054] V. Preferred embodiment of the automatic replenishment unit; The automatic replenishment unit provided by the present invention preferably includes the following sub-units: Automatic fuel / gas replenishment subunit: preferably located next to generator set 2, it monitors the fuel / gas level in the buffer section and automatically triggers external replenishment when the level falls below the threshold; the buffer section serves as a temporary storage area for external fuel / gas sources next to the unattended mobile power supply equipment. Automatic lubricating oil replenishment subunit: preferably arranged on the side of generator set 2, it monitors the pressure of lubricating oil pipeline and the level of liquid in the buffer section by arranging sensors, and automatically replenishes when abnormal.

[0055] Automatic coolant replenishment subunit: preferably located on the side of generator set 2, it monitors the pressure of coolant pipeline and the level of coolant in the buffer section, and automatically replenishes coolant when the pressure / level is insufficient; An oil and gas buffer section is located on the oil or gas supply pipeline of the generator set to prevent emergency shutdown caused by sudden oil or gas interruption. The oil circuit buffer section is located on the lubrication system pipeline and is used to balance changes in lubricating oil volume and pressure. The liquid buffer section is located on the cooling system piping and is used to balance changes in coolant volume and pressure. It achieves unmanned operation and maintenance by eliminating the need for manual opening of the cap for inspection and filling.

[0056] VI. Preferred embodiment of the pre-start unit; Data such as external ambient temperature and humidity are acquired through local sensors / communication modules.

[0057] Low temperature environment: Start the lubrication system in advance to pressurize and heat it, reduce the viscosity of the lubricating oil, fill the lubrication pipeline, and avoid cylinder scoring.

[0058] High-temperature environment: Start the cooling system circulation in advance to stabilize the pipeline pressure and avoid sudden pressure rise and pipe burst during startup.

[0059] After preheating / precooling / prelubrication is completed, start the generator set to avoid equipment damage caused by sudden start-up.

[0060] VII. A preferred embodiment of the breathing oil and gas treatment subunit is connected to the lubrication system pipeline. It separates oil vapor from lubricating oil, and the separated lubricating oil is circulated back to the lubrication system. The separated gas and moisture are discharged from the cabin, reducing operating costs while avoiding environmental pollution.

[0061] 8. Preferred embodiment of the control unit: The control unit can be a controller arranged in the control cabinet of the control compartment. This method often adopts local operation, that is, after the manual on-site operation is performed once, the present invention will run stably according to the preset program, thus realizing long-term long-distance unattended stable operation.

[0062] Another approach, which is the optimal method of this invention, involves placing the host computer at a remote location as the control unit. The host computer interacts with the control cabinet of the control room via a communication module to control the aforementioned units. This approach allows a large number of unattended mobile power supply devices provided by this invention to be controlled by a single host computer cluster, achieving stable long-term unattended operation without the need for manual on-site operation.

[0063] Unless otherwise defined, all terms used herein (including technical and scientific terms) shall have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It will also be understood that, unless explicitly defined herein, terms such as those defined in a general dictionary shall be interpreted as having the meaning consistent with their meaning in the relevant field context, and not as having an idealized or overly formal meaning.

[0064] The present invention has been described in detail above through specific embodiments and examples, but these are not intended to limit the invention. Many modifications and improvements can be made by those skilled in the art without departing from the principles of the invention, and these should also be considered within the scope of protection of the present invention.

Claims

1. An unattended mobile power supply device, characterized in that, include: Cabin, generator set, fresh air unit, safety monitoring unit, automatic supply unit, pre-start unit, and control unit; The cabin, which provides an environment for power conversion, has at least an IP54 protection rating. The top wall at one end of the cabin along its length forms the cabin's only fresh air inlet, and a heat dissipation channel for blowing the generator set is formed between the fresh air inlet and the cabin door. The hatch is formed on the end wall at the other end of the length of the cabin, serving as the cabin's only air outlet; A generator set, which is detachably installed inside the cabin, is used to convert combustible oil and gas into electrical energy output; The fresh air unit is formed as a detachable module and is installed at the fresh air inlet to provide fresh air to the cabin. A safety monitoring unit is installed inside the cabin to monitor production safety within the cabin. Automatic replenishment unit, used for automatic replenishment of unattended mobile power supply equipment; A pre-start unit that starts according to the external environment and / or the power conversion environment, preheating the coolant of the cooling system and the lubricating oil of the lubrication system before the generator set starts; The control unit is used to control the coordinated operation of the cabin door, generator set, fresh air unit, safety monitoring unit, automatic replenishment unit and pre-start unit.

2. The unattended mobile power supply equipment as described in claim 1, characterized in that: The cabin is divided into a control compartment and a working compartment, separated by a partition wall. Safety escape doors are located within the partition wall, including: The bulkhead is used to isolate the electrical energy conversion environment from the external environment. It has functions such as heat insulation, noise reduction, vibration reduction, wind and sand protection, radiation protection, insect protection, and antistatic properties. Guide rails, formed at the bottom of the work compartment, are used to support and install the generator set; The cable trays, which are formed in the compartments on both sides of the generator set, form a clearance structure to allow space for the heat dissipation channels inside the compartment. The hoisting section is formed on the top wall of the cabin and is located above the generator set's working position. The maintenance doors are located on both sides of the cabin, directly opposite the generator set's working position. The hatch is designed as a check valve, allowing airflow to pass through it from inside the cabin to outside.

3. The unattended mobile power supply equipment as described in claim 2, characterized in that, The hatches include: The louvers, bio-protection nets, and sound-absorbing panels are arranged side by side from the outside of the cabin to the inside.

4. The unattended mobile power supply equipment as described in claim 3, characterized in that: When the louvers are electrically controlled, they open to a specified angle when the generator set starts, and close when the generator set stops, according to the instructions of the control unit.

5. The unattended mobile power supply equipment as described in claim 1, characterized in that: The portion of the generator set's exhaust pipe located inside the cabin is covered with a heat insulation layer.

6. The unattended mobile power supply equipment as described in claim 1, characterized in that: The air inlet of the fresh air unit faces the ground and is equipped with a bio-protective net. The air outlet of the fresh air unit is located inside the cabin, facing the generator set. It is equipped with a guide plate to guide the fresh air entering the cabin and form a heat dissipation channel.

7. The unattended mobile power supply equipment as described in claim 1, characterized in that... The safety monitoring unit includes: a gas monitoring subunit, a fire monitoring subunit, and a video monitoring subunit; The gas monitoring subunit is used to monitor the concentration of combustible gas and harmful gas in the cabin. Based on the concentration of combustible gas and harmful gas in the cabin, the control unit triggers the linkage between the fresh air unit and the generator set. The fire monitoring subunit is used to monitor smoke and temperature inside the cabin and triggers the linkage between the fresh air unit and the generator set through the control unit. The video monitoring subunit is used to monitor the working conditions inside the cabin. After the visual model of the control unit makes a judgment, it can trigger the linkage between the fresh air unit and the generator set.

8. The unattended mobile power supply equipment as described in claim 1, characterized in that... The automatic replenishment unit includes: an automatic replenishment subunit for combustible oil and gas, an automatic replenishment subunit for lubricating oil, and an automatic replenishment subunit for coolant; The combustible gas supply subunit triggers external combustible gas supply based on the amount of combustible gas stored in the oil and gas buffer section. The automatic lubricating oil replenishment subunit triggers external lubricating oil replenishment based on the lubricating oil pressure in the pipeline and / or the lubricating oil level in the lubricating oil buffer section. The coolant replenishment subunit triggers external coolant replenishment based on the coolant pressure in the pipeline and / or the liquid level in the coolant buffer section. An oil and gas buffer section is located on the oil or gas supply pipeline of the generator set to prevent emergency shutdown caused by sudden oil or gas interruption. The oil circuit buffer section is located on the lubrication system pipeline and is used to balance changes in lubricating oil volume and pressure. The liquid buffer section is located on the cooling system piping and is used to balance changes in coolant volume and pressure.

9. The unattended mobile power supply equipment as described in claim 1, characterized in that: The pre-start unit acquires external environmental data based on local sensors and / or communication modules, and starts the cooling and lubrication systems through the control unit based on the external environmental data.

10. The unattended mobile power supply equipment as described in claim 1, characterized in that, Also includes: The breathing oil and gas treatment subunit is connected to the lubrication system pipeline. It separates the oil vapor from the lubrication system. The separated lubricating oil is circulated back to the lubrication system, while the separated gas and moisture are discharged from the cabin.

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