New energy ship power battery cabin cooling system

Abstract

The invention relates to the technical field of new energy ships, in particular to a new energy ship power battery cabin cooling system which comprises a cooling box body, the cooling box body wraps a power battery, a fluid cavity channel used for cooling liquid circulation is formed in the cooling box body, and a water cooling system comprises a water pump and a pipeline connected with the cooling box body. The water pump pumps a cooling water source from the water tank and circulates through the fluid cavity channel to take away heat generated by the power battery, the phase change material module is arranged in the cooling box body, and a phase change material absorbs the heat and generates phase change when the temperature of the battery reaches a preset value so as to reduce the temperature generated by the battery; the intelligent control system comprises a temperature sensor, a flow sensor and a central control unit, monitors temperature and flow data of the power battery and the cooling system in real time, and dynamically adjusts operation of the water pump, the flow of cooling water and the working state of the heat energy recovery module. The cooling efficiency and the energy utilization rate of the system are comprehensively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy ships, and more specifically, to a cooling system for a power battery compartment of a new energy ship. Background Art

[0002] With the increasing awareness of environmental protection and the rapid development of new energy technologies, electric ships are becoming increasingly popular as an environmentally friendly and efficient means of transportation. However, ship power batteries generate a lot of heat during operation. If they are not cooled in a timely and effective manner, they may lead to a decline in battery performance and even cause safety accidents. Therefore, how to efficiently cool power batteries and maximize the use of waste heat during the cooling process is the focus and difficulty of current technological development.

[0003] For example, the announcement number CN111572745A - Electric Boat Water Cooling Intelligent Control System and Control Method, the system monitors the temperature of the power motor and motor controller in real time through a temperature sensor, dynamically adjusts the operating status of the water pump and fan according to the temperature threshold, and also sets a device to prevent coolant backwash, and continues to provide cooling after the motor stops to prevent the motor from overheating and damage, but it mainly focuses on the cooling of the power motor and does not fully consider the thermal management of the power battery pack. In addition, although the system has achieved intelligent control, there is still waste in energy utilization, especially in high temperature environments, relying solely on water cooling may not be enough to quickly reduce the battery temperature.

[0004] For example, the announcement number CN114530653 A is a ship power battery cooling system and ship, which consists of a cooling unit and a pump unit. The cooling unit exchanges heat with the secondary heat exchange medium (higher concentration of ethylene glycol aqueous solution) in the pump unit through a primary heat exchange medium (such as ethylene glycol aqueous solution). Specifically, the cooling unit includes an evaporator, a condenser, a compressor and an expansion valve to form a closed-loop circulation system. The primary heat exchange medium circulates in the system and absorbs and releases heat through evaporation and condensation. The secondary heat exchanger is connected to the external power battery, takes away the heat generated by the battery through the secondary heat exchange medium, and finally transfers the heat to the cooling unit through heat exchange with the primary heat exchange medium. This system is designed to keep the ship power battery pack within a suitable temperature range during operation through more efficient thermal management. The system adopts a two-stage heat exchange method, which enhances the cooling effect, but also increases the complexity of the system. The existence of multi-stage heat exchangers and closed-loop circulation systems makes the workload and cost of installation, commissioning and maintenance high, especially in the ship environment, where space is limited and environmental conditions are harsh, which makes maintenance difficult.

[0005] For example, announcement number CN214068775U - Ship power battery cooling system based on seawater / shaped phase change material channels. This system sets up shaped phase change material channels between the power batteries. Seawater is pumped into the channels to flow and take away the heat absorbed by the phase change material, thereby achieving effective cooling of the batteries. This design utilizes the natural cooling capacity of seawater and combines the thermal management characteristics of phase change materials to reduce the heat transfer resistance of the system.

[0006] The corrosiveness of seawater in this technology poses a challenge to the durability of the system. Although some anti-corrosion treatments have been done in the design, the complexity and cost of system maintenance are still high. The heat dissipation efficiency of the phase change material is limited during long-term operation and cannot meet the continuous high-intensity heat dissipation requirements.

[0007] The above three existing patent technologies have solved the heat dissipation problem of electric ship power batteries to varying degrees, but there are still some common problems: strong dependence on the external environment, high system maintenance costs, and low energy efficiency. These problems show that there is still room for improvement in the existing technology, especially in improving the energy efficiency of the system, reducing dependence on the external environment, and simplifying system maintenance. New solutions are urgently needed. Summary of the invention

[0008] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a new energy ship power battery compartment cooling system that comprehensively improves the cooling efficiency and energy utilization rate of the system by combining water cooling, phase change materials and intelligent control technology and introducing a heat recovery module.

[0009] To achieve the above object, the present invention provides the following technical solutions: A new energy ship power battery compartment cooling system, comprising: The cooling box is wrapped around the outside of the power battery and has a fluid cavity for cooling liquid circulation inside. A water cooling system, comprising a water pump and a pipe connected to the cooling box, wherein the water pump draws cooling water from the water tank and circulates the cooling water through the fluid cavity to remove heat generated by the power battery; A phase change material module is arranged in the cooling box, and the phase change material absorbs heat and undergoes phase change when the battery temperature reaches a predetermined value, so as to reduce the temperature generated by the battery; The heat recovery module is connected to the cooling box and is used to receive the cooling water after absorbing the heat and use it for other purposes. The intelligent control system includes a temperature sensor, a flow sensor and a central control unit. The intelligent control system monitors the temperature and flow data of the power battery and the cooling system in real time, and dynamically adjusts the operation of the water pump, the cooling water flow and the working state of the heat recovery module.

[0010] The present invention is further configured as follows: the box body includes a plurality of unit plates that are combined in shape, the unit plates include a substrate in an upper and lower relationship and an inner core placed between the two substrates, the inner core is made of a shaped phase change material, and a fluid cavity is opened in the inner core, a fluid inlet and a fluid outlet that are connected to the fluid cavity are opened on the substrate, the fluid inlet is connected to a cooling water source, the fluid outlet is connected to a heat recovery module, and a temperature sensor is connected to the inner core so that the control system can monitor the temperature of the inner core in real time.

[0011] The present invention is further configured such that the fluid cavities are arranged in a wavy path along the length direction of the inner core of the plate, and the wavy path extends from the fluid inlet to the fluid outlet to form a continuous flow path.

[0012] The present invention is further configured as follows: a heat conducting plate made of graphite is arranged between the substrate and the inner core.

[0013] The present invention is further configured as follows: the unit panels of the box body include a top unit panel as the top surface, a left unit panel and a right unit panel that are symmetrically arranged left and right, and a front unit panel and a rear unit panel that are symmetrically arranged front and back. The top panel is provided with two connecting grooves on its downward end surface, the two connecting grooves are symmetrical with respect to its central axis, the connecting grooves are provided along the length direction of the top panel and penetrate the left and right end surfaces of the top panel. The upper edges of the front unit plate and the rear unit plate extend upward to form a first connecting protrusion adapted to the connecting groove. A plurality of slots are provided on the left and right end surfaces of the top panel, and second connecting protrusions adapted to the slots extend upward from the upper edges of the left unit plate and the right unit plate.

[0014] The present invention is further configured as follows: steps are dug at both ends of the inner side surfaces of the front unit plate and the rear unit plate, and work station holes are also opened on the end faces of the steps; extensions are provided on both sides of the left unit plate and the right unit plate to fill in the steps, and docking holes connected to the work station holes are opened on the extensions so that fasteners can penetrate the docking holes and the work station holes for connection.

[0015] The present invention is further configured as follows: the front unit plate, the rear unit plate, the left unit plate and the right unit plate are all L-shaped.

[0016] The present invention is further configured as follows: the intelligent control system further includes A temperature monitoring module is used to monitor the temperature change of the shaped phase change material in real time through a temperature sensor, and the temperature data is transmitted to the central control unit through the temperature monitoring module; A flow monitoring module, which has a flow sensor and is installed at the fluid inlet and the fluid outlet, and is used to monitor the flow rate and flow velocity of the coolant. The flow data is transmitted to the central control unit through the flow monitoring module; The water pump control module, the central control unit dynamically adjusts the running state of the water pump according to the data fed back by the temperature sensor and the flow sensor, controls the flow rate and flow velocity of the coolant, so as to ensure the optimal flow state of the cooling water in the fluid cavity; Fault detection and alarm module: The central control unit receives data from the temperature sensor and flow sensor, and automatically triggers an alarm signal when it detects temperature or flow abnormalities (such as temperature exceeding the set value or flow falling below the preset threshold), and takes emergency measures through the water pump control module, such as adjusting the water pump power or starting the backup cooling system; Intelligent energy-saving management module, the central control unit controls the working state of the heat recovery module based on the coolant temperature data, and introduces the cooling water after absorbing heat into the ship's heat energy utilization system.

[0017] The present invention is further configured as follows: the intelligent control system further includes Data recording and analysis module: The central control unit is equipped with a data recording and analysis module, which can record the operating data of the cooling system in real time, including parameters such as temperature, flow, pressure and energy consumption, and generate operation reports through data analysis to optimize system settings and predict maintenance needs; Remote monitoring and control module, the central control unit is connected to the remote monitoring and control module, which is connected to the remote terminal via a wireless network, allowing the user to remotely monitor the status of the cooling system in real time, and adjust the system settings or perform emergency operations through the remote terminal.

[0018] Compared with the shortcomings of the prior art, the beneficial effects of the present invention are: By setting a shaped phase change material in the cooling box, the shaped phase change material absorbs heat and undergoes phase change when the battery temperature reaches a predetermined value, effectively reducing the battery temperature and preventing the battery from overheating. Combined with the design of the wavy fluid cavity, the heat exchange efficiency of the cooling system is improved. The water cooling system is combined with the intelligent control system to achieve precise temperature control of the power battery, ensuring that the battery always operates within the optimal temperature range, thereby extending the battery life and improving the overall reliability of the system.

[0019] The intelligent control system has multiple functions such as temperature monitoring, flow regulation, fault detection and response, and heat recovery management. Through real-time monitoring and dynamic adjustment, the system can automatically optimize the operating status of the water pump and the flow rate of the coolant according to the temperature changes of the battery and the flow of the coolant, thereby maximizing the cooling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an exploded schematic diagram of the box of the present invention; Figure 2 It is a schematic diagram of a cooling box of the present invention; Figure 3 This is a schematic diagram of the arrangement of the fluid cavity in the unit plate of the present invention; Figure 4 It is a cross-sectional schematic diagram of a unit plate of the present invention; Figure 5 Schematic diagram of the modules of the intelligent system of the present invention. DETAILED DESCRIPTION

[0021] Reference Figures 1 to 5 The embodiments of the present invention are further described.

[0022] This embodiment specifically includes: a cooling box, a water cooling system, a heat recovery module and an intelligent control system.

[0023] The cooling box is wrapped around the outside of the power battery and has a fluid cavity inside for the circulation of coolant. The water cooling system includes a water pump and a pipe connected to the cooling box. The water pump draws cooling water from the water tank and circulates it through the fluid cavity to remove the heat generated by the power battery.

[0024] The phase change material module is arranged in the cooling box. When the battery temperature reaches a predetermined value, the phase change material absorbs heat and undergoes phase change so as to reduce the temperature generated by the battery.

[0025] The heat recovery module is connected to the cooling box to receive the cooling water after absorbing the heat and use it for other purposes, such as hot water for domestic use.

[0026] The intelligent control system includes temperature sensors, flow sensors and a central control unit. The intelligent control system monitors the temperature and flow data of the power battery and cooling system in real time, and dynamically adjusts the water pump operation, cooling water flow and the working status of the heat recovery module.

[0027] The box body includes a plurality of unit plates combined in shape, the unit plates include a base plate in an upper and lower relationship and an inner core placed between the two base plates, edge sealing plates for sealing the inner core within its body are provided on the outer peripheral sides of the two base plates, and a heat conducting plate made of graphite is provided between the base plate and the inner core, which can improve the efficiency of introducing the heat generated by the battery into the inner core.

[0028] The inner core is made of a shaped phase change material, and a fluid cavity is opened in the inner core. A fluid inlet and a fluid outlet connected to the fluid cavity are opened on the substrate. The fluid cavity is arranged in a wavy path along the length direction of the inner core. The wavy path extends from the fluid inlet to the fluid outlet to form a continuous flow path.

[0029] The fluid inlet is connected to a cooling water source, the fluid outlet is connected to a heat recovery module, and a temperature sensor is connected to the inner core so that the control system can monitor the inner core temperature in real time.

[0030] The unit panels of the box body include a top unit panel as the top surface, a left unit panel and a right unit panel that are symmetrically arranged left and right, and a front unit panel and a rear unit panel that are symmetrically arranged front and back. The front unit panel and the rear unit panel, the left unit panel and the right unit panel are all L-shaped, and docking holes are opened on the bottom surfaces of the four for convenient connection with the cabin.

[0031] Two connection grooves are provided on the downward end surface of the top panel, and the two connection grooves are symmetrical with respect to the central axis thereof. The connection grooves are provided along the length direction of the top panel and penetrate the left and right end surfaces of the top panel. The connection groove adopts a dovetail shape. The upper edges of the front unit plate and the rear unit plate extend upward with a first connection protrusion adapted to the connection groove, and the first connection protrusion is also in a dovetail shape. When the front and rear unit plates are installed therewith, the first connection protrusion is inserted from one end of the connection groove until it is flush with the end surface of the other end.

[0032] A plurality of slots are provided on the left and right end surfaces of the top panel. The slots have bottoms, which are also in a dovetail shape. The upper edges of the left and right unit boards extend upward with second connecting protrusions that fit the slots. The second connecting protrusions are also in a dovetail shape, and the second connecting protrusions are safely immersed in the slots to complete the installation.

[0033] During the above period, since both ends of the inner side surfaces of the front unit plate and the rear unit plate are dug with step portions, and the end surfaces of the step portions are also provided with station holes; An extension part filled with the step part is provided on both sides of the left unit plate and the right unit plate, and a docking hole connected with the station hole is opened on the extension part; When the left unit panel, the right unit panel and the top panel are assembled, the extension parts of the left unit panel and the right unit panel are just combined with the step parts. Finally, fasteners are passed through the docking holes and the work station holes to connect the left unit panel and the right unit panel to the front unit panel and the rear unit panel to finally form a box body.

[0034] The intelligent control system also includes A temperature monitoring module is used to monitor the temperature change of the shaped phase change material in real time through a temperature sensor, and the temperature data is transmitted to the central control unit through the temperature monitoring module; A flow monitoring module, which has a flow sensor and is installed at the fluid inlet and the fluid outlet, and is used to monitor the flow rate and flow velocity of the coolant. The flow data is transmitted to the central control unit through the flow monitoring module; The water pump control module, the central control unit dynamically adjusts the running state of the water pump according to the data fed back by the temperature sensor and the flow sensor, controls the flow rate and flow velocity of the coolant, so as to ensure the optimal flow state of the cooling water in the fluid cavity; Fault detection and alarm module: The central control unit receives data from the temperature sensor and flow sensor, and automatically triggers an alarm signal when it detects temperature or flow abnormalities (such as temperature exceeding the set value or flow falling below the preset threshold), and takes emergency measures through the water pump control module, such as adjusting the water pump power or starting the backup cooling system; Intelligent energy-saving management module, the central control unit controls the working state of the heat recovery module based on the coolant temperature data, and introduces the cooling water after absorbing heat into the ship's heat energy utilization system.

[0035] Data recording and analysis module: The central control unit is equipped with a data recording and analysis module, which can record the operating data of the cooling system in real time, including parameters such as temperature, flow, pressure and energy consumption, and generate operation reports through data analysis to optimize system settings and predict maintenance needs; Remote monitoring and control module, the central control unit is connected to the remote monitoring and control module, which is connected to the remote terminal via a wireless network, allowing the user to remotely monitor the status of the cooling system in real time, and adjust the system settings or perform emergency operations through the remote terminal.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Common changes and substitutions made by those skilled in the art within the scope of the technical solution of the present invention should be included in the protection scope of the present invention.

Claims

1. A new energy ship power battery compartment cooling system, characterized in that: include The cooling box is wrapped around the outside of the power battery and has a fluid cavity for cooling liquid circulation inside. A water cooling system, comprising a water pump and a pipe connected to the cooling box, wherein the water pump draws cooling water from the water tank and circulates the cooling water through the fluid cavity to remove heat generated by the power battery; A phase change material module is arranged in the cooling box, and the phase change material absorbs heat and undergoes phase change when the battery temperature reaches a predetermined value, so as to reduce the temperature generated by the battery; The heat recovery module is connected to the cooling box and is used to receive the cooling water after absorbing the heat and use it for other purposes. The intelligent control system includes a temperature sensor, a flow sensor and a central control unit. The intelligent control system monitors the temperature and flow data of the power battery and the cooling system in real time, and dynamically adjusts the operation of the water pump, the cooling water flow and the working state of the heat recovery module.

2. According to claim 1, a new energy ship power battery compartment cooling system is characterized in that: The box body includes a plurality of unit plates combined in shape, the unit plates include a substrate in an upper and lower relationship and an inner core placed between the two substrates, the inner core is made of a shaped phase change material, and a fluid cavity is opened in the inner core, a fluid inlet and a fluid outlet connected to the fluid cavity are opened on the substrate, the fluid inlet is connected to a cooling water source, and the fluid outlet is connected to a heat recovery module, and a temperature sensor is connected to the inner core so that the control system can monitor the temperature of the inner core in real time.

3. According to claim 2, a new energy ship power battery compartment cooling system is characterized in that: The fluid channels are arranged in a wavy path along the length direction of the inner core of the plate, and the wavy path extends from the fluid inlet to the fluid outlet to form a continuous flow path.

4. According to claim 3, a new energy ship power battery compartment cooling system is characterized in that: A heat conducting plate made of graphite is arranged between the base plate and the inner core.

5. According to claim 2, a new energy ship power battery compartment cooling system is characterized in that: The unit panels of the box body include a top unit panel as the top surface, a left unit panel and a right unit panel that are symmetrically arranged left and right, and a front unit panel and a rear unit panel that are symmetrically arranged front and back. The top panel is provided with two connecting grooves on its downward end surface, the two connecting grooves are symmetrical with respect to its central axis, the connecting grooves are provided along the length direction of the top panel and penetrate the left and right end surfaces of the top panel. The upper edges of the front unit plate and the rear unit plate extend upward to form a first connecting protrusion adapted to the connecting groove. A plurality of slots are provided on the left and right end surfaces of the top panel, and second connecting protrusions adapted to the slots extend upward from the upper edges of the left unit plate and the right unit plate.

6. According to claim 5, a new energy ship power battery compartment cooling system is characterized in that: Step portions are dug at both ends of the inner side surfaces of the front unit plate and the rear unit plate, and work station holes are also opened on the end faces of the step portions. Extension portions that fill the step portions are provided on both sides of the left unit plate and the right unit plate, and docking holes connected to the work station holes are opened on the extension portions so that fasteners can penetrate the docking holes and the work station holes for connection.

7. According to claim 6, a new energy ship power battery compartment cooling system is characterized in that: The front unit plate, the rear unit plate, the left unit plate and the right unit plate are all L-shaped.

8. According to claim 6, a new energy ship power battery compartment cooling system is characterized in that: The intelligent control system also includes A temperature monitoring module is used to monitor the temperature change of the shaped phase change material in real time through a temperature sensor, and the temperature data is transmitted to the central control unit through the temperature monitoring module; A flow monitoring module, which has a flow sensor and is installed at the fluid inlet and the fluid outlet, and is used to monitor the flow rate and flow velocity of the coolant. The flow data is transmitted to the central control unit through the flow monitoring module; The water pump control module, the central control unit dynamically adjusts the running state of the water pump according to the data fed back by the temperature sensor and the flow sensor, controls the flow rate and flow velocity of the coolant, so as to ensure the optimal flow state of the cooling water in the fluid cavity; Fault detection and alarm module: The central control unit receives data from the temperature sensor and flow sensor, and automatically triggers an alarm signal when it detects temperature or flow abnormalities (such as temperature exceeding the set value or flow falling below the preset threshold), and takes emergency measures through the water pump control module, such as adjusting the water pump power or starting the backup cooling system; Intelligent energy-saving management module, the central control unit controls the working state of the heat recovery module based on the coolant temperature data, and introduces the cooling water after absorbing heat into the ship's heat energy utilization system.

9. A new energy ship power battery compartment cooling system according to claim 8, characterized in that: The intelligent control system also includes Data recording and analysis module: The central control unit is equipped with a data recording and analysis module, which can record the operating data of the cooling system in real time, including parameters such as temperature, flow, pressure and energy consumption, and generate operation reports through data analysis to optimize system settings and predict maintenance needs; Remote monitoring and control module, the central control unit is connected to the remote monitoring and control module, which is connected to the remote terminal via a wireless network, allowing the user to remotely monitor the status of the cooling system in real time, and adjust the system settings or perform emergency operations through the remote terminal.

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