An ultracapacitor-based energy storage battery pack

Abstract

The application relates to a supercapacitor-based energy storage battery pack and belongs to the technical field of batteries. The supercapacitor-based energy storage battery pack comprises a composite shell, a combined energy storage mechanism, a liquid cooling mechanism and a core circuit module, the combined energy storage mechanism is arranged in the interior of the composite shell, the liquid cooling mechanism is fixedly connected to the inner side of the composite shell, and the core circuit module is fixedly connected to the surface of the composite shell; the liquid cooling mechanism is designed to efficiently conduct capacitor heat through the interlaced design of liquid cooling vertical plates and heat-conducting spacers, the uniformity deviation of heat dissipation is controlled in a preset temperature range in cooperation with a vacuum pump, the heat dissipation efficiency is significantly improved in cooperation with organic silicon heat-conducting glue of the combined energy storage mechanism, the liquid flow regulating valve accurately controls flow through an electric push rod, a vacuum insulation layer is established at low temperature, and the PTC heating film of the composite shell is linked to guarantee the reliability in extreme environments.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of batteries, in particular to a supercapacitor-based energy storage battery pack. BACKGROUND

[0002] The supercapacitor-based energy storage battery pack is a composite energy storage device combining the high power density, fast charging and discharging characteristics of a supercapacitor and the energy advantages of a traditional battery. It stores electric energy through double-layer or pseudo-capacitance effects and has the characteristics of long cycle life, fast response speed and high safety and is suitable for power grid frequency modulation, electric vehicles and other scenes requiring efficient energy management.

[0003] However, in a low-temperature use scenario, low temperature can cause the viscosity of an electrolyte to increase, ion migration to be blocked, discharge voltage instability and power output to decrease. Meanwhile, the ion adsorption capacity of a double-layer capacitor is weakened, effective energy storage capacity is reduced, and the actual use performance of equipment in a cold environment is seriously affected. SUMMARY

[0004] Therefore, it is necessary to provide a supercapacitor-based energy storage battery pack in view of the problem that the performance of a supercapacitor-based energy storage battery pack seriously deteriorates in a low-temperature environment and affects the stable operation of a system.

[0005] A supercapacitor-based energy storage battery pack comprises a composite shell, a combined energy storage mechanism, a liquid cooling mechanism and a core circuit module, the combined energy storage mechanism is arranged in the interior of the composite shell, the liquid cooling mechanism is fixedly connected to the inner side of the composite shell, the core circuit module is fixedly connected to the surface of the composite shell, and the combined energy storage mechanism, the liquid flow regulating valve and the vacuum pump are electrically connected to the core circuit module.

[0006] In one of the embodiments, the liquid cooling mechanism comprises a liquid cooling bottom plate and a liquid outlet valve, the liquid cooling bottom plate is fixedly connected to the bottom of the composite shell, the top of the liquid cooling bottom plate is fixedly connected and communicated with uniformly distributed liquid cooling vertical plates, the liquid cooling vertical plates are staggered with the cell monomers of the combined energy storage mechanism, the liquid inlet end of the liquid cooling bottom plate is fixedly connected and communicated with a liquid inlet valve, the liquid outlet end of the liquid cooling bottom plate is fixedly connected and communicated with a liquid flow regulating valve, the two liquid outlet ends of the liquid flow regulating valve are fixedly connected and communicated with the liquid outlet valve, one of the liquid inlet ends of the liquid flow regulating valve is fixedly connected and communicated with the liquid outlet end of the liquid cooling vertical plate, and the surface of the liquid outlet valve is fixedly connected and communicated with a vacuum pump.

[0007] In one embodiment, the liquid flow regulating valve includes a sliding box, which is fixedly connected to the surface of the liquid outlet valve, and two side ends of the sliding box are provided with two liquid guide ports, one of which is located at the bottom and is fixedly connected and communicated with the liquid outlet end of the liquid cooling base plate, one of which is located at the top and is fixedly connected and communicated with the liquid outlet end of the liquid cooling vertical plate, and the two liquid guide ports on the other side are fixedly connected and communicated with the liquid outlet valve, and the internal sliding connection of the sliding box is provided with a blocking block, and the two liquid guide ports at the bottom are blocked and separated by the blocking block, and a liquid guide channel is provided at the side end of the blocking block, and the two liquid guide ports at the top are connected through the liquid guide channel, and the top of the sliding box is fixedly connected with an electric push rod, and the end of the output shaft of the electric push rod is fixedly connected to the blocking block.

[0008] In one embodiment, the inner side of the liquid guide port on one side and at the top is fixedly connected and communicated with a manifold, the upper surface of the manifold is fixedly connected and communicated with a branch pipe, and one end of the branch pipe is fixedly connected and communicated with the liquid outlet end of the liquid cooling vertical plate.

[0009] In one embodiment, the liquid outlet valve is fixedly connected to the vacuum pump and is communicated with an electromagnetic valve, and the electromagnetic valve is arranged above the liquid outlet valve.

[0010] In one embodiment, the vacuum pump and the solenoid valve are fixedly connected and communicated with a detachable component, and a block desiccant is embedded and installed inside the detachable component.

[0011] In one embodiment, the detachable component includes a threaded cup, which is fixedly connected and communicated between the vacuum pump and the solenoid valve. The inner side of the threaded cup is threadedly connected to a threaded barrel, and the block desiccant is arranged inside the threaded barrel. The bottom and side ends of the threaded cup are both provided with air guide ports.

[0012] In one embodiment, a barrier net is embedded in the air guide port, and the barrier net is in contact with the block desiccant.

[0013] In one embodiment, a dust cap is embedded in the air outlet of the vacuum pump, one end of the dust cap passes through the composite shell, and a dust net is embedded in the inner side of the dust cap.

[0014] In one embodiment, evenly distributed heat-conducting spacers are fixedly connected between two adjacent liquid-cooling vertical plates, and the heat-conducting spacers are staggered with the battery cells of the combined energy storage mechanism.

[0015] In one embodiment, an exhaust port is provided on the surface of the thermally conductive spacer, and the exhaust port is located at the lowest point of the thermally conductive spacer.

[0016] 1. In the aforementioned supercapacitor-based energy storage battery pack, the liquid cooling mechanism efficiently conducts heat from the capacitor through an interlaced design of liquid cooling risers and thermally conductive spacers, and cooperates with a vacuum pump to control heat dissipation uniformity deviations within a preset temperature range. This, in conjunction with the silicone thermally conductive adhesive of the combined energy storage mechanism, significantly improves heat dissipation efficiency. The liquid flow regulating valve precisely controls the flow through an electric push rod, establishing a vacuum insulation layer at low temperatures, and interacting with the PTC heating film of the composite shell to ensure reliability in extreme environments.

[0017] 2. The liquid cooling mechanism's vacuum pump and solenoid valve work together to maintain a preset vacuum level, dust-proof components to prevent contamination, and core circuit modules to achieve millisecond-level temperature control response. Detachable components with built-in desiccant filter impurities, ensuring stable performance at low temperatures of -20°C to 0°C, enabling safety protection and intelligent temperature control in high-power scenarios.

[0018] 3. The liquid cooling mechanism's flow control valve rapidly evacuates refrigerant and establishes a vacuum. Coupled with the core circuit module's intelligent strategy, it activates vacuum mode below 0°C and switches to a liquid cooling cycle above 10°C. Thermally conductive spacers optimize installation efficiency and, in conjunction with the vacuum process, significantly improve energy conversion efficiency, meeting high-power requirements such as grid frequency regulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. 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 any creative work.

[0020] Figure 1 It is a structural diagram of the overall structure of the present invention;

[0021] Figure 2 It is an exploded schematic diagram of the overall structure of the present invention;

[0022] Figure 3 Schematic diagram of the structure of the liquid cooling mechanism of the present invention;

[0023] Figure 4 is a schematic cross-sectional view of the liquid cooling mechanism of the present invention;

[0024] Figure 5 It is a partially cutaway structural diagram of the liquid cooling mechanism of the present invention;

[0025] Figure 6 A partially cutaway schematic cross-sectional view of the liquid cooling mechanism of the present invention;

[0026] Figure 7 Schematic diagram of the explosion of the detachable components of the present invention;

[0027] Figure 8 It is a structural schematic diagram of the liquid flow regulating valve in the present invention.

[0028] Reference numerals:

[0029] 100. Composite shell; 200. Combined energy storage mechanism; 300. Liquid cooling mechanism; 310. Liquid cooling base plate; 320. Liquid cooling riser; 330. Liquid inlet valve; 340. Liquid flow regulating valve; 341. Sliding box; 342. Liquid guide port; 343. Sealing block; 344. Liquid guide channel; 345. Electric push rod; 346. Manifold; 347. Branch pipe; 350. Liquid outlet valve; 360. Vacuum pump; 370. Solenoid valve; 380. Detachable component; 381. Threaded cup; 382. Threaded barrel; 383. Air guide port; 384. Barrier net; 390. Block desiccant; 3100. Dust cap; 3110. Dust net; 3120. Thermal spacer; 3130. Exhaust port; 400. Core circuit module. DETAILED DESCRIPTION

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0031] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of the present invention are for illustrative purposes only and do not represent the only implementation method.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0033] In the present application, unless otherwise explicitly specified and limited, the first feature is "on", "under" the second feature, which can be that the first feature is in direct contact with the second feature, or the first feature is indirectly in contact with the second feature through an intermediate medium. Moreover, the first feature is "above", "over" and "on" the second feature, which can be that the first feature is directly above or obliquely above the second feature, or only means that the first feature is higher than the second feature in horizontal height. The first feature is "below", "under" and "under" the second feature, which can be that the first feature is directly below or obliquely below the second feature, or only means that the first feature is lower than the second feature in horizontal height.

[0034] Unless otherwise defined, all technical and scientific terms used in the specification of the present application have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing the specific embodiments and are not intended to limit the present application. The term "and / or" used in the specification of the present application includes any and all combinations of one or more related listed items.

[0035] The following will be described in detail Figure 1 - Figure 8 The supercapacitor-based energy storage battery pack of the present application is described.

[0036] In one embodiment, a supercapacitor-based energy storage battery pack includes a composite shell 100, a combined energy storage mechanism 200, a liquid cooling mechanism 300, and a core circuit module 400. The combined energy storage mechanism 200 is arranged inside the composite shell 100. The liquid cooling mechanism 300 is fixed to the inner side of the composite shell 100, and the core circuit module 400 is fixed to the outer surface of the composite shell 100. The combined energy storage mechanism 200, the liquid flow regulating valve 340, and the vacuum pump 360 are all electrically connected to the core circuit module 400.

[0037] Composite shell 100: material and structure: aluminum alloy honeycomb rectangular shell, bottom and liquid cooling bottom plate 310 are welded and fixed; inner layer structure: aerogel thermal insulation layer and PTC heating film are laid in sequence on the inner side, realizing thermal insulation and low temperature heating function.

[0038] Combined energy storage mechanism 200: cell configuration: 125S series carbon-based double-layer supercapacitor (EDLC), single cell process parameters: voltage range: 2.5V~4.2V; internal resistance: ≤0.3mΩ; fixed way: bonded by organic silicon thermal conductive adhesive in the rectangular gap formed by the liquid cooling vertical plate 320, the liquid cooling bottom plate 310 and the thermal conductive spacer 3120; the exposed part is fixed by binding in rows; circuit connection: the capacitor series end connector is electrically connected with the direct current interface of the core circuit module 400.

[0039] As Figure 2 , Figure 3 , Figure 4、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8 As shown, the liquid cooling mechanism 300 includes a liquid cooling base plate 310 and a liquid outlet valve 350. The liquid cooling base plate 310 is fixedly connected to the bottom of the composite shell 100. The top of the liquid cooling base plate 310 is fixedly connected and connected to the evenly distributed liquid cooling vertical plates 320. The liquid cooling vertical plates 320 are staggered with the battery cells of the combined energy storage mechanism 200. The liquid inlet end of the liquid cooling base plate 310 is fixedly connected and connected to the liquid inlet valve 330. The liquid outlet end of the liquid cooling base plate 310 is fixedly connected and connected to the liquid flow regulating valve 340. The liquid flow regulating valve 340 is fixedly connected to the liquid cooling base plate 310. The two liquid outlet ends of the valve 340 are fixedly connected and communicated with the liquid outlet valve 350. One of the liquid inlet ends of the liquid flow regulating valve 340 is fixedly connected and communicated with the liquid outlet end of the liquid cooling vertical plate 320. The surface of the liquid outlet valve 350 is fixedly connected and communicated with the vacuum pump 360. After the energy storage battery pack is completed, the liquid inlet valve 330 and the liquid outlet valve 350 need to be connected to the liquid outlet end and liquid inlet end of the external heat exchanger through high-pressure resistant pipelines and hydraulic joints respectively. The liquid outlet end and liquid inlet end of the external heat exchanger are both connected to an infusion pump.

[0040] The liquid outlet valve 350 is fixedly connected to the vacuum pump 360 and is communicated with an electromagnetic valve 370. The electromagnetic valve 370 is arranged above the liquid outlet valve 350. The electromagnetic valve 370 can prevent the refrigerant from entering the vacuum pump 360 when the vacuum pump 360 is in a non-operating state, so as to achieve a good blocking effect; the vacuum pump 360 and the electromagnetic valve 370 are fixedly connected and communicated with a detachable component 380. A block desiccant 390 is embedded in the interior of the detachable component 380. The block desiccant 390 can filter the refrigerant mixed in the airflow during the process of the airflow passing through the detachable component 380, so as to prevent the refrigerant from entering the vacuum pump 360 along the airflow and being discharged to the outside, so as to reduce the probability of contamination of the vacuum pump 360 and the external environment; a dust cap 3100 is embedded in the air outlet end of the vacuum pump 360, one end of the dust cap 3100 passes through the composite shell 100, and a dust net 3110 is embedded in the inner side of the dust cap 3100. The dustproof net 3110 and the dustproof cap 3100 can prevent external dust from entering the interior of the vacuum pump 360, thereby reducing the impact on the normal operation of the vacuum pump 360. A uniformly distributed thermal spacer 3120 is fixedly connected between two adjacent liquid-cooled vertical plates 320. The thermal spacers 3120 are staggered with the battery cells of the combined energy storage mechanism 200. The thermal spacers 3120 not only separate the capacitor cells to reduce the increase in heat accumulation caused by stacking adjacent capacitors together, but also absorb the heat generated by the capacitor contact surface and guide the heat to the liquid-cooled vertical plates 320 and the liquid-cooled base plate 310 to improve the heat dissipation effect of the capacitor cells. The surface of the thermal spacer 3120 is provided with an exhaust port 3130, which is located at the lowest point of the thermal spacer 3120. This can effectively reduce the air pressure of the capacitor cells when inserted into the rectangular gap, thereby reducing the resistance of the staff to installing the capacitor cells.

[0041] like Figure 5 、 Figure 6 and Figure 8As shown, the liquid flow regulating valve 340 includes a slide box 341, which is fixedly connected to the surface of the liquid outlet valve 350. Two liquid guide ports 342 are provided at both side ends of the slide box 341. The liquid guide port 342 on one side and at the bottom is fixedly connected and communicated with the liquid outlet end of the liquid cooling base plate 310. The liquid guide port 342 on one side and at the top is fixedly connected and communicated with the liquid outlet end of the liquid cooling riser 320. The two liquid guide ports 342 on the other side are both fixedly connected and communicated with the liquid outlet valve 350. A blocking block 343 is slidably connected to the interior of the slide box 341. The two liquid guide ports at the bottom are fixedly connected and communicated with the liquid outlet end of the liquid cooling base plate 310. 342 is blocked and separated by a blocking block 343, and a liquid guide channel 344 is provided at the side end of the blocking block 343. The two liquid guide ports 342 at the top are connected through the liquid guide channel 344. The top of the sliding box 341 is fixedly connected to an electric push rod 345, and the end of the output shaft of the electric push rod 345 is fixedly connected to the blocking block 343; the inner side of the liquid guide port 342 at one side and at the top is fixedly connected and connected to a manifold 346, and the upper surface of the manifold 346 is fixedly connected and connected to a branch pipe 347, and one end of the branch pipe 347 is fixedly connected and connected to the liquid outlet end of the liquid-cooled vertical plate 320.

[0042] In this embodiment, the initial state is that the blocking block 343 blocks the two lower liquid guide ports 342 and connects the two upper liquid guide ports 342 through the liquid guide channel 344. The heat exchanger transports the refrigerant to the liquid-cooled base plate 310 through the liquid inlet valve 330. When the interior of the liquid-cooled base plate 310 is filled with refrigerant, the excess refrigerant overflows along the connection between the liquid-cooled base plate 310 and the liquid-cooled riser 320 and enters the liquid-cooled riser 320. When the interior of the liquid-cooled riser 320 is also filled with refrigerant, the excess refrigerant enters the manifold 346 through the branch pipe 347. The manifold 346 guides the overflowing refrigerant through the upper liquid guide port 342 and the liquid guide channel 344 in sequence to the liquid outlet valve 350. The liquid outlet valve 350 redirects the overflowing refrigerant back to the external heat exchanger to achieve the purpose of circulating liquid cooling.

[0043] When the refrigerant needs to be emptied, the slave control module controls the closing of the liquid inlet valve 330 according to the preset program and controls the electric push rod 345 to retract. The electric push rod 345 drives the blocking block 343 to move upward, and the blocking block 343 drives the liquid guide channel 344 to be misaligned with the two upper liquid guide ports 342, so that the upper liquid guide port 342 is blocked. At the same time, the blocking block 343 is separated from the two lower liquid guide ports 342, so that the refrigerant can flow normally through the two lower liquid guide ports 342. Then, the slave control module can use the infusion pump at the liquid inlet end of the heat exchanger to suck and empty the refrigerant inside the liquid cooling bottom plate 310 and the liquid cooling vertical plate 320 through the liquid outlet valve 350. When the infusion pump has sucked out a certain amount of refrigerant, the slave control module The module then controls the opening of the solenoid valve 370 and the vacuum pump 360 to draw air from the liquid-cooled base plate 310 and the liquid-cooled riser 320 according to a preset program. This not only improves the vacuum degree inside the liquid-cooled base plate 310 and the liquid-cooled riser 320, but also effectively reduces the rate at which heat from the surface of the capacitor dissipates outward, thereby achieving a good thermal insulation effect. At the same time, it also reduces the probability of internal mixing of air during the subsequent refrigerant re-discharge into the liquid-cooled base plate 310 and the liquid-cooled riser 320, allowing the refrigerant to be more fully filled in the liquid-cooled base plate 310 and the liquid-cooled riser 320, thereby improving the effect of the refrigerant cooling the capacitor through the liquid-cooled base plate 310 and the liquid-cooled riser 320.

[0044] like Figure 6 and Figure 7 As shown, the detachable component 380 includes a threaded cup 381, which is fixedly connected and communicated between the vacuum pump 360 and the solenoid valve 370. The inner side of the threaded cup 381 is threadedly connected to a threaded barrel 382, ​​and the block desiccant 390 is arranged inside the threaded barrel 382. The bottom and side ends of the threaded cup 381 are provided with air guide ports 383, and the interior of the air guide port 383 is embedded with a barrier net 384, which is in contact with the block desiccant 390.

[0045] In this embodiment, when the maintenance personnel need to replace the block desiccant 390 , the maintenance personnel only need to unscrew the threaded barrel 382 together with the block desiccant 390 from the threaded cup 381 to easily remove and replace the block desiccant 390 .

[0046] Core circuit module 400: Sampling board control compartment: integrated CMU (slave control module), functions include: real-time monitoring of single cell voltage and temperature.

[0047] Execute the balanced strategy:

[0048] (1) When the operating temperature of the capacitor monomer is higher than 55°C, the heat exchanger and the infusion pump are operated at high power to ensure that the refrigerant that has dropped to the corresponding temperature circulates through the liquid cooling base plate 310 and the liquid cooling riser 320 to cool the capacitor, and the operating power of the heat exchanger and the infusion pump is adjusted accordingly according to the real-time temperature data of the capacitor monomer;

[0049] (2) When the operating temperature of the capacitor monomer is within the temperature range of 10 to 55°C, the heat exchanger and the infusion pump are operated at low power, and the operating power of the heat exchanger and the infusion pump are adjusted accordingly according to the real-time temperature data of the capacitor monomer;

[0050] (3) When the operating temperature of the capacitor unit is within the temperature range of 0 to 10°C, the heat exchanger and infusion pump are not operated;

[0051] (4) When the operating temperature of the capacitor unit is within the temperature range of -20 to 0°C, the refrigerant inside the liquid cooling base plate 310 and the liquid cooling riser 320 is evacuated, and the inside of the liquid cooling base plate 310 and the liquid cooling riser 320 is vacuumed by the vacuum pump 360;

[0052] (5) When the operating temperature of the capacitor cell is less than -20°C, the PTC heating film is turned on, and the operating power of the PTC heating film is adjusted accordingly according to the real-time temperature data of the capacitor cell.

[0053] DC interface: dedicated to DC power transmission, fixed to the front of the composite shell 100 through a threaded joint.

[0054] Security components:

[0055] Explosion-proof valve: embedded in the front of the composite shell 100, used for pressure release;

[0056] Manual maintenance switch: provides physical isolation of high voltage system;

[0057] Charge and discharge control circuit: supports 250A bidirectional DC / DC conversion (efficiency ≥ 95%) and communicates with external PCS;

[0058] Three-level fuse protection: overvoltage (>500V), overcurrent (>300A), temperature (>60℃), trigger delay <10ms.

[0059] The specific usage process of the supercapacitor-based energy storage battery pack is as follows:

[0060] Install the composite shell 100: Weld and fix the aluminum alloy honeycomb rectangular shell to the liquid-cooled base plate 310, and lay an aerogel insulation layer and PTC heating film on the inside. This design ensures the stability of the battery pack in extreme environments of -20°C to 60°C by enhancing structural strength and providing active temperature control function.

[0061] A combined energy storage mechanism (200:125S) with a carbon-based double-layer supercapacitor connected in series is installed in the gap between the liquid-cooled riser 320 and the liquid-cooled base plate 310 using silicone thermal adhesive. The exposed portion is then tied and fixed and connected to the DC interface of the core circuit module 400. This layout optimizes the heat dissipation path and reduces contact thermal resistance, resulting in a measured increase in heat dissipation efficiency of over 30%.

[0062] Install the liquid cooling mechanism 300: The liquid cooling base plate 310 is fixed to the bottom of the shell, and the liquid cooling risers 320 are arranged in an interlaced manner with the capacitor units. It integrates the liquid inlet valve 330, vacuum pump 360, and a detachable component 380 containing a block desiccant 390. The vacuum treatment reduces the residual air in the refrigerant and controls the heat dissipation uniformity deviation within ±2°C.

[0063] Install the core circuit module 400: The integrated CMU module connects the sensor and the balancing circuit, and is equipped with a three-level fuse protection component (overvoltage / overcurrent / temperature) to achieve real-time monitoring and a fast protection response of less than 10ms.

[0064] Liquid cooling system debugging and vacuum treatment: After the external heat exchanger is connected, refrigerant is injected, and the vacuum pump 360 maintains the system vacuum degree ≤10Pa to enhance the low-temperature insulation performance.

[0065] System function test: Verify the coordinated control of the PTC heating film and liquid cooling system, and the DC / DC conversion efficiency ≥ 95%, ultimately achieving multiple safety protections and intelligent temperature control in high-power scenarios.

[0066] It should be noted that the PTC heating film, electric push rod 345, vacuum pump 360, solenoid valve 370, CMU (slave control module), charge and discharge control circuit, three-stage fuse protection component, heat exchanger, and infusion pump in the above description are all devices with relatively mature application of existing technology. The specific models can be selected according to actual needs. At the same time, the PTC heating film, electric push rod 345, vacuum pump 360, solenoid valve 370, CMU (slave control module), charge and discharge control circuit, three-stage fuse protection component, heat exchanger, and infusion pump are all powered by a branch circuit connector connected to a DC interface, which will not be elaborated here.

[0067] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0068] The above-described embodiments merely illustrate several embodiments of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, and these modifications and improvements fall within the scope of the present invention. Therefore, the scope of the present invention shall be determined by the appended claims.

Claims

1. A supercapacitor-based energy storage battery pack, characterized in that: include: Composite shell (100); A combined energy storage mechanism (200), the combined energy storage mechanism (200) being arranged inside the composite shell (100); a liquid cooling mechanism (300), the liquid cooling mechanism (300) being fixedly connected to the inner side of the composite shell (100); The liquid cooling mechanism (300) includes a liquid cooling base plate (310) and a liquid outlet valve (350), wherein the liquid cooling base plate (310) is fixedly connected to the bottom of the composite shell (100), and the top of the liquid cooling base plate (310) is fixedly connected and communicated with uniformly distributed liquid cooling vertical plates (320), wherein the liquid cooling vertical plates (320) are staggeredly distributed with the battery cells of the combined energy storage mechanism (200), and the liquid inlet end of the liquid cooling base plate (310) is fixedly connected to the liquid cooling vertical plates (320). and is connected to a liquid inlet valve (330); the liquid outlet end of the liquid cooling bottom plate (310) is fixedly connected to and connected to a liquid flow regulating valve (340); both liquid outlet ends of the liquid flow regulating valve (340) are fixedly connected to and connected to the liquid outlet valve (350); one of the liquid inlet ends of the liquid flow regulating valve (340) is fixedly connected to and connected to the liquid outlet end of the liquid cooling vertical plate (320); and the surface of the liquid outlet valve (350) is fixedly connected to and connected to a vacuum pump (360); The liquid flow regulating valve (340) includes a slide box (341), the slide box (341) is fixedly connected to the surface of the liquid outlet valve (350), and two side ends of the slide box (341) are provided with two liquid guide ports (342), one of which is located at the bottom and is fixedly connected to and communicated with the liquid outlet end of the liquid cooling bottom plate (310), one of which is located at the top and is fixedly connected to and communicated with the liquid outlet end of the liquid cooling vertical plate (320), and the two liquid guide ports (342) on the other side are both connected to the liquid outlet end of the liquid cooling bottom plate (310). The liquid valve (350) is fixedly connected and communicated, the interior of the sliding box (341) is slidably connected to a blocking block (343), the two liquid guide ports (342) at the bottom are blocked and separated by the blocking block (343), a liquid guide channel (344) is provided at the side end of the blocking block (343), the two liquid guide ports (342) at the top are communicated through the liquid guide channel (344), the top of the sliding box (341) is fixedly connected to an electric push rod (345), and the end of the output shaft of the electric push rod (345) is fixedly connected to the blocking block (343); A core circuit module (400) is fixedly connected to the surface of the composite shell (100), and the combined energy storage mechanism (200), the liquid flow regulating valve (340) and the vacuum pump (360) are all electrically connected to the core circuit module (400).

2. The supercapacitor-based energy storage battery pack according to claim 1, characterized in that: The inner side of the liquid guide port (342) on one side and located at the top is fixedly connected to and communicated with a confluence pipe (346), the upper surface of the confluence pipe (346) is fixedly connected to and communicated with a branch pipe (347), and one end of the branch pipe (347) is fixedly connected to and communicated with the liquid outlet end of the liquid-cooling vertical plate (320).

3. The supercapacitor-based energy storage battery pack according to claim 1, characterized in that: The liquid outlet valve (350) and the vacuum pump (360) are fixedly connected and communicated with a solenoid valve (370), and the solenoid valve (370) is arranged above the liquid outlet valve (350).

4. The supercapacitor-based energy storage battery pack according to claim 3, characterized in that: The vacuum pump (360) and the solenoid valve (370) are fixedly connected and communicate with a detachable component (380), and a block desiccant (390) is embedded and installed inside the detachable component (380).

5. The supercapacitor-based energy storage battery pack according to claim 4, characterized in that: The detachable component (380) includes a threaded cup (381), which is fixedly connected to and communicated between the vacuum pump (360) and the solenoid valve (370). The inner side of the threaded cup (381) is threadedly connected to a threaded barrel (382), and the block desiccant (390) is arranged inside the threaded barrel (382). The bottom and side ends of the threaded cup (381) are both provided with air guide ports (383).

6. The supercapacitor-based energy storage battery pack according to claim 5, characterized in that: A barrier net (384) is embedded and installed inside the air guide port (383), and the barrier net (384) is in contact with the block desiccant (390).

7. The supercapacitor-based energy storage battery pack according to claim 1, characterized in that: A dustproof cap (3100) is embedded and installed at the air outlet end of the vacuum pump (360), one end of the dustproof cap (3100) passes through the composite shell (100), and a dustproof net (3110) is embedded and installed on the inner side of the dustproof cap (3100).

8. The supercapacitor-based energy storage battery pack according to claim 1, characterized in that: Evenly distributed heat-conducting spacers (3120) are fixedly connected between two adjacent liquid-cooling vertical plates (320), and the heat-conducting spacers (3120) and the battery cells of the combined energy storage mechanism (200) are staggered in distribution.

9. The supercapacitor-based energy storage battery pack according to claim 8, characterized in that: An exhaust port (3130) is provided on the surface of the heat-conducting spacer (3120), and the exhaust port (3130) is arranged at the lowest point of the heat-conducting spacer (3120).

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