A protective energy storage power supply device

Abstract

This invention relates to the field of power supply devices and discloses an energy storage power supply device with protective functions, comprising: an energy storage power supply cabinet for housing and protecting internal components; a battery box installed inside the energy storage power supply cabinet for housing and separating lithium batteries; lithium batteries installed inside the battery box for energy storage and power supply; and a power storage backplate installed inside the battery box and in contact with the lithium batteries. In this invention, through the design of the power storage backplate, when a lithium battery spontaneously combusts, the stored energy can be released immediately, quickly pushing the spontaneously combusting lithium battery out of the battery box, directly cutting off the fire source and preventing further spread of the fire. Simultaneously, the spontaneously combusting lithium battery is removed from the battery box and placed in a sealed explosion-proof box, effectively isolating it from air and combustibles, reducing the risk of reignition, minimizing system downtime due to fire, and improving the operating efficiency and stability of the energy storage power supply station.

Description

Technical Field

[0001] This invention relates to the field of power supply devices, and more particularly to an energy storage power supply device with protective functions. Background Technology

[0002] Energy storage power supply devices are high-efficiency energy storage equipment whose core function is to centrally store electrical energy for use during peak electricity demand periods or emergencies. They mainly consist of batteries, inverters, and control systems. The batteries store electrical energy, while the inverter converts direct current (DC) power into alternating current (AC) power for use by various electrical devices. Lithium-ion batteries are currently the most commonly used energy storage batteries in power storage cabinets.

[0003] Currently, while there are various methods for dealing with spontaneous combustion of lithium batteries in energy storage power supply devices, their application in actual energy storage power supply stations is generally quite limited. Common methods include using dry powder fire extinguishers, injecting water into the lithium batteries, and continuously spraying water into the power supply station. However, these conventional methods have significant limitations in dealing with spontaneous combustion of lithium batteries.

[0004] Limited fire extinguishing effect: When lithium batteries spontaneously combust, the fire is intense and difficult to control. Conventional fire extinguishers are often unable to extinguish the fire source in a short time, especially when the fire has spread to multiple lithium batteries.

[0005] Risk of reignition: Even if the fire is temporarily controlled with a fire extinguisher, the fire source may not be completely extinguished due to the complex internal materials and structure of lithium batteries, posing a risk of reignition.

[0006] Damage to other batteries: If the spread of fire cannot be effectively controlled during the firefighting process, other lithium batteries located in the same area may also spontaneously combust and explode due to high temperatures, leading to greater losses. Summary of the Invention

[0007] To address the aforementioned problems, the present invention is implemented through the following technical solution:

[0008] An energy storage power supply device with protective functions includes:

[0009] The energy storage power supply cabinet is used to house and protect the internal components. As the outer shell of the entire device, the energy storage power supply cabinet not only provides a robust protective layer to prevent external physical impacts and damage, but also forms a closed space, effectively isolating the internal battery pack from the external environment, reducing the impact of environmental factors on battery performance, and improving the safety and stability of the system.

[0010] The battery box, installed inside the energy storage power supply cabinet, is used to house and separate lithium batteries. The design of the battery box allows the lithium batteries to be installed in an orderly and safe manner inside the energy storage power supply cabinet, achieving effective separation between batteries and avoiding the chain reaction of a single battery failure on other batteries. The structure of the battery box also provides convenience for subsequent maintenance and battery replacement.

[0011] The lithium battery, installed in the battery box, is used for energy storage and power supply. As the core component of the energy storage and power supply device, the lithium battery has the advantages of high energy density, long cycle life and environmental friendliness. It can efficiently store and release electrical energy to meet the energy needs of various application scenarios.

[0012] An energy storage backplate, installed inside the battery box and in contact with the lithium battery, is designed to move and store energy when the lithium battery is inserted into the battery box. In the event of spontaneous combustion of the lithium battery, the energy storage backplate releases the stored energy, pushing the lithium battery out of the battery box. The design of the energy storage backplate cleverly utilizes the squeezing force generated when the lithium battery is inserted to store this energy. In the event of spontaneous combustion of the lithium battery, the energy storage backplate can quickly release the stored energy and push the lithium battery out of the battery box by mechanical force, thereby quickly cutting off the fire source and preventing the fire from spreading. This active protection mechanism greatly improves the safety performance of the energy storage power supply device.

[0013] The fixing part, installed on the power storage back plate and connected to the lithium battery, is used to receive and accommodate the lithium battery pushed out by the power storage back plate. The fixing part provides reliable positioning and fixing of the lithium battery in the battery box, preventing the lithium battery from shaking and falling off during movement or vibration, and improving the safety and stability of the entire device.

[0014] The protective mechanism, installed inside the energy storage power supply cabinet, provides a closed and isolated environment for the spontaneously combusting lithium battery, effectively preventing the spread of fire, smoke, and toxic gases within the energy storage power supply cabinet and protecting the safety of other lithium batteries and the energy storage power supply cabinet.

[0015] The energy storage backplate includes:

[0016] Two limiting rods are installed on the power storage back plate. Two limiting grooves are opened on the inner wall of the battery box. The limiting rods are connected in the limiting grooves. The limiting rods are used to fix the position of the power storage back plate in the battery box.

[0017] The energy storage backplate also includes:

[0018] Two through holes are provided on the power storage back plate;

[0019] Two movable holes are respectively opened on the sidewalls of the two through holes, and the limiting rod is connected inside the movable holes.

[0020] The energy storage backplate also includes:

[0021] Two connecting holes are respectively opened on the inner wall of the two movable holes;

[0022] Two movable blocks are respectively connected to two connecting holes, and the movable blocks are connected to the limiting rod;

[0023] Two first elastic elements are connected at one end to the inner wall of the connecting hole and at the other end to the moving block.

[0024] Also includes:

[0025] Two triggers are installed on the battery box. One end of each trigger is located on one side of the lithium battery and connected by a connector. The triggers are used to detect the spontaneous combustion state of the lithium battery and disconnect when the lithium battery spontaneously combusts, thereby releasing the fixing restriction of the power storage backplate.

[0026] The trigger includes a control rod installed inside the battery box. One end of the trigger is connected to the control rod, and one end of the control rod extends into the through hole and contacts the limiting rod.

[0027] The trigger also includes:

[0028] The second elastic element, with one end connected to the control lever and the other end connected to the inner wall of the battery box, is used to provide a restoring force for the control lever to its initial position.

[0029] The protective mechanism includes:

[0030] An explosion-proof box is installed inside the energy storage power supply cabinet;

[0031] An explosion-proof cover is installed on the explosion-proof box;

[0032] The base plate, connected inside the explosion-proof box, is configured to move downwards when the lithium battery falls into the explosion-proof box, thereby controlling the explosion-proof cover to rotate and close the explosion-proof box.

[0033] Two connecting ropes, one end of which is connected to the explosion-proof cover and the other end of which is connected to the base plate;

[0034] The cabinet door is installed on the energy storage power supply cabinet, and the explosion-proof box is installed on the cabinet door.

[0035] Also includes:

[0036] The third elastic element is connected at one end to the power storage back plate and at the other end to the inner wall of the battery box.

[0037] Two electrical connection points are installed inside the energy storage power supply cabinet to provide positive and negative terminals for the lithium battery.

[0038] The power receiving part includes:

[0039] The power receiving pole has one end connected to the power receiving part and the other end passing through the battery box and connected to the lithium battery. Two power connectors are connected to one side of the lithium battery, and the power receiving pole is connected to the power connectors.

[0040] The fixing part includes:

[0041] A groove is formed on the fixing part;

[0042] A limiting angle plate, installed in the groove, is configured such that when the fixing part moves into the battery box along with the power storage back plate, the inner wall of the battery box presses the limiting angle plate to limit the lithium battery.

[0043] This invention provides an energy storage power supply device with protective functions. Compared with the prior art, it has the following advantages:

[0044] 1. Rapid Response: Through the design of the energy storage backplate, when the lithium battery spontaneously combusts, it can immediately release the stored energy, quickly push the spontaneously combusting lithium battery out of the battery box, directly cut off the fire source, and prevent the fire from spreading further. Compared with traditional fire extinguishers, this solution can act on the fire source itself more directly and quickly, significantly improving fire extinguishing efficiency.

[0045] 2. The spontaneously combusted lithium battery is removed from the battery box and placed in a sealed explosion-proof box, which effectively isolates it from air and flammable materials, reducing the risk of reignition. The automatic protection system, consisting of triggers, control rods, and limit rods, can respond quickly when spontaneous combustion is detected, without the need for manual intervention, thus reducing the possibility of reignition.

[0046] 3. The explosion-proof box in the protective mechanism automatically closes when the lithium battery falls, forming a closed isolation environment. This effectively prevents the spread of fire, smoke, and toxic gases to other lithium batteries and energy storage power supply devices. By quickly cutting off the fire source and isolating the fire scene, it greatly reduces the risk of other lithium batteries spontaneously combusting or exploding due to high temperatures, thus protecting the safety of the entire energy storage power supply station.

[0047] 4. Because it can quickly cut off the fire source and isolate the fire scene, it reduces the system downtime caused by the fire, improves the operating efficiency and stability of the energy storage power station, and reduces the subsequent maintenance and replacement costs by reducing the damage to equipment and batteries caused by the fire.

[0048] 5. Compared with traditional fire extinguishing methods, it generates less environmental pollution during the fire extinguishing process, which is more in line with environmental protection requirements. By reducing equipment damage and scrapping caused by fire, it improves the efficiency of resource utilization. Attached Figure Description

[0049] Figure 1 This is a schematic diagram of the three-dimensional structure proposed in this invention.

[0050] Figure 2 This is a schematic diagram of the structure of the power receiving part, battery box, lithium battery, fixing part and triggering element proposed in this invention.

[0051] Figure 3 This is a schematic diagram of the battery box, lithium battery, and fixing part proposed in this invention.

[0052] Figure 4 This is a schematic diagram of the structure of the lithium battery, energy storage backplate, fixing plate and trigger element proposed in this invention.

[0053] Figure 5 This is a cross-sectional structural diagram of the battery box, lithium battery, energy storage backplate, power connection part, fixing part and triggering element proposed in this invention.

[0054] Figure 6 This is a schematic diagram of the internal structure of the battery box, lithium battery, energy storage backplate, power connection part, fixing part and triggering element proposed in this invention.

[0055] Figure 7 This is a schematic diagram of the structure of the battery box, lithium battery, limiting rod, and control rod proposed in this invention.

[0056] Figure 8 This is a schematic diagram of the protective mechanism proposed in this invention.

[0057] The attached figures are labeled as follows:

[0058] 1. Energy storage power supply cabinet;

[0059] 2. Battery box; 201. Limiting groove;

[0060] 3. Lithium battery; 301. Power connector;

[0061] 4. Power-saving backplate; 401. Limiting rod; 402. Through hole; 403. Moving hole; 404. Moving block; 405. First elastic element;

[0062] 5. Cabinet doors;

[0063] 6. Protective mechanism; 601. Explosion-proof box; 602. Base plate; 603. Explosion-proof cover; 604. Connecting rope;

[0064] 7. Electrical connection part; 701. Electrical connection pole;

[0065] 8. Fixing part; 801. Groove; 802. Limiting angle plate;

[0066] 9. Trigger element; 901. Connector; 902. Control lever; 903. Second elastic element;

[0067] 10. The third elastic element. Detailed Implementation

[0068] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.

[0069] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0070] Reference Figures 1-8 An energy storage and power supply device with protective functions includes: an energy storage and power supply cabinet 1 for housing and protecting internal components; a battery box 2 installed inside the energy storage and power supply cabinet 1 for housing and separating lithium batteries 3; lithium batteries 3 installed inside the battery box 2 for energy storage and power supply; a power storage backplate 4 installed inside the battery box 2 and in contact with the lithium batteries 3, the power storage backplate 4 being configured to move and store energy when the lithium batteries 3 are inserted into the battery box 2, and to release the stored energy and push the lithium batteries 3 out of the battery box 2 when the lithium batteries 3 spontaneously combust; a fixing part 8 installed on the power storage backplate 4 and connected to the lithium batteries 3 for receiving and accommodating the lithium batteries 3 pushed out by the power storage backplate 4; and a protective mechanism 6 installed inside the energy storage and power supply cabinet 1 for providing a closed isolation environment for the spontaneously combusting lithium batteries 3, effectively preventing the spread of fire, smoke and toxic gases inside the energy storage and power supply cabinet 1, and protecting the safety of other lithium batteries 3 and the energy storage and power supply cabinet 1.

[0071] The design of the battery box 2 allows the lithium batteries 3 to be installed orderly and safely inside the energy storage cabinet 1, achieving effective separation between batteries and avoiding a chain reaction of a single battery failure on other batteries. As the outer shell of the entire device, the energy storage cabinet 1 not only provides a robust protective layer to prevent external physical impacts and damage, but also forms a closed space, effectively isolating the internal battery pack from the external environment, reducing the impact of environmental factors on battery performance, and improving the safety and stability of the system. As the core component of the energy storage power supply device, the lithium battery 3 has advantages such as high energy density, long cycle life, and environmental friendliness, and can efficiently store and release electrical energy to meet the energy needs of various application scenarios. The design of the energy storage backplate 4 cleverly utilizes the squeezing force generated when the lithium battery 3 is inserted to store this energy. In the event of spontaneous combustion of the lithium battery 3, the energy storage backplate 4 can quickly release the stored energy and push the lithium battery 3 out of the battery box 2 by mechanical force, quickly cutting off the fire source and preventing the fire from spreading. This active protection mechanism greatly improves the safety performance of the energy storage power supply device.

[0072] Reference Figure 5 and Figure 6 The power storage backplate 4 includes two limiting rods 401, which are installed on the power storage backplate 4. Two limiting grooves 201 are opened on the inner wall of the battery box 2. The limiting rods 401 are connected in the limiting grooves 201. The limiting rods 401 are used to fix the position of the power storage backplate 4 in the battery box 2. The cooperation between the limiting rods 401 and the limiting grooves 201 restricts the movement range of the power storage backplate 4, ensuring the stability and reliability of the power storage backplate 4 under normal working conditions. It also provides necessary guidance and constraint for the rapid movement of the power storage backplate 4 when the lithium battery 3 spontaneously combusts.

[0073] Reference Figure 6 and Figure 7 The power storage back plate 4 also includes: two through holes 402, which are formed on the power storage back plate 4; two moving holes 403, which are respectively formed on the side walls of the two through holes 402, and the limiting rod 401 is connected in the moving hole 403; two connecting holes, which are respectively formed on the inner walls of the two moving holes 403; two moving blocks 404, which are respectively connected in the two connecting holes, and the moving blocks 404 are connected to the limiting rod 401; and two first elastic members 405, one end of which is connected to the inner wall of the connecting hole, and the other end of which is connected to the moving block 404.

[0074] Reference Figure 4 , Figure 6 and Figure 7 Two trigger elements 9 are installed on the battery box 2. One end of each trigger element 9 is located on one side of the lithium battery 3 and connected via a connector 901. The trigger elements 9 are used to detect the spontaneous combustion state of the lithium battery 3. When the lithium battery 3 spontaneously combusts, the trigger element disconnects, releasing the fixing restriction of the power storage backplate 4. Each trigger element 9 includes a control rod 902, which is installed inside the battery box 2. One end of the trigger element 9 is connected to the control rod 902, and one end of the control rod 902 extends into the through hole 402 and contacts the limiting rod 401. A second elastic element 903 is connected at one end to... One end of the control lever 902 is connected to the inner wall of the battery box 2 to provide the initial restoring force for the control lever 902; the trigger 9 can monitor the spontaneous combustion state of the lithium battery 3 in real time and quickly disconnect when an abnormality is detected, releasing the fixed restriction of the power storage back plate 4. The control lever 902 achieves control over the movement of the power storage back plate 4 by contacting and separating from the limit rod 401, thus achieving spontaneous combustion protection for the lithium battery 3. The second elastic element 903 provides the necessary elastic support for the reset of the control lever 902.

[0075] Reference Figure 1 and Figure 8The protective mechanism 6 includes: an explosion-proof box 601, installed inside the energy storage power supply cabinet 1; an explosion-proof cover 603, installed on the explosion-proof box 601; a base plate 602, connected inside the explosion-proof box 601, configured to cause the base plate 602 to be squeezed and move downwards when the lithium battery 3 falls into the explosion-proof box 601, thereby controlling the rotation of the explosion-proof cover 603 and closing the explosion-proof box 601; two connecting ropes 604, one end connected to the explosion-proof cover 603 and the other end connected to the base plate 602; and a cabinet door 5, installed on the energy storage power supply cabinet 1. On the electrical cabinet 1, the explosion-proof box 601 is installed on the cabinet door 5; the protective mechanism 6 provides a closed isolation environment for the spontaneously combusting lithium battery 3, effectively preventing the spread of fire, smoke and toxic gases, and protecting the safety of other lithium batteries 3 and energy storage power supply cabinet 1. The combined design of the explosion-proof box 601 and the explosion-proof cover 603 allows it to close quickly when the lithium battery 3 falls, further improving the protective effect. The cooperation between the connecting rope 604 and the base plate 602 realizes the automatic control of closing the explosion-proof cover 603.

[0076] Reference Figure 4 and Figure 5 The third elastic element 10 is connected at one end to the energy storage back plate 4 and at the other end to the inner wall of the battery box 2; the two power connection parts 7 are installed in the energy storage power supply cabinet 1 to provide positive and negative terminals for the lithium battery 3. The third elastic element 10 provides additional buffering and restoring force for the energy storage back plate 4, ensuring the stability and reliability of the lithium battery 3 during insertion and removal, and also improving the accuracy and force of the energy storage back plate 4 when releasing energy.

[0077] Reference Figure 2 and Figure 5 The power receiving part 7 includes a power receiving rod 701, one end of which is connected to the power receiving part 7, and the other end passes through the battery box 2 and connects to the lithium battery 3. Two power connectors 301 are connected to one side of the lithium battery 3. The power receiving rod 701 is connected to the power connectors 301. The design of the power receiving part 7 and the power receiving rod 701 realizes a reliable electrical connection between the lithium battery 3 and the energy storage power supply cabinet 1, ensuring stable power transmission. The connection method between the power connectors 301 and the power receiving rod 701 is simple, firm, and easy to install and maintain.

[0078] Reference Figure 4The fixing part 8 includes: a groove 801 formed on the fixing part 8; and a limiting angle plate 802 installed in the groove 801. The limiting angle plate 802 is configured to be pressed by the inner wall of the battery box 2 when the fixing part 8 moves into the battery box 2 along with the power storage back plate 4, thereby limiting the lithium battery 3. Through the design of the groove 801 and the limiting angle plate 802, the fixing part 8 provides reliable limiting and fixing for the position of the lithium battery 3 in the battery box 2, preventing the lithium battery 3 from shaking and falling off during movement or vibration, and improving the safety and stability of the entire device. The design of the limiting angle plate 802 also takes into account the squeezing effect of the inner wall of the battery box 2, so that the fixing part 8 can automatically adjust its position when moving with the power storage back plate 4, providing a more accurate limiting effect for the lithium battery 3.

[0079] The first elastic element 405, the second elastic element 903, and the third elastic element 10 are all made of stainless steel springs, or alloy springs may be used; the trigger element 9 is made of nylon fiber rope, or polyester fiber rope may be used.

[0080] During use, the lithium battery 3 is correctly installed into the battery box 2. During insertion, the lithium battery 3 compresses the energy-storing backplate 4. The energy-storing backplate 4 moves and stores energy after being compressed. The energy-storing backplate 4 compresses the third elastic element 10, causing the third elastic element 10 to deform and store energy. Simultaneously, the limiting rod 401 moves with the energy-storing backplate 4 to the opening of the limiting groove 201. At the same time, the fixing part 8 moves into the battery box 2 along with the energy-storing backplate 4. The inner wall of the battery box 2 compresses the limiting angle plate 802, which adheres to the lithium battery 3. Pulling the two triggers 9... 9 drives the control lever 902 to move. The movement of the control lever 902 will compress the limiting lever 401 to move. The limiting lever 401 inserts into the limiting groove 201, which can fix the position of the energy storage back plate 4 in the battery box 2, and thus fix the position of the lithium battery 3. Connecting and fixing the connectors 901 of the two triggers 9 can maintain the position of the two control levers 902 after they have moved. The moving lever also compresses the second elastic element 903. After the lithium battery 3 is inserted into the battery box 2, it is connected to the connector 301 on the lithium battery 3 through the connecting rod 701, realizing the electrical connection between the lithium battery 3 and the energy storage power supply cabinet 1. To ensure stable power transmission, the lithium battery 3 efficiently stores and releases electrical energy under normal operating conditions, meeting the energy needs of various application scenarios. If the lithium battery 3 spontaneously combusts, the trigger element 9 disconnects due to the combustion. This disconnection causes the control rod 902 to lose its support, and the second elastic element 903 pushes the control rod 902 back to its original position. The control rod 902 separates from the limit rod 401, releasing the fixing constraint of the energy storage backplate 4. After losing its fixing constraint, the energy storage backplate 4 rapidly releases the stored energy, mechanically pushing the lithium battery 3 out of the battery box 2 and quickly cutting off the fire source. The ejected lithium battery 3 is received and contained by the fixing part 8 installed on the energy storage back plate 4, preventing further damage to the lithium battery 3 during the ejection process. The ejected lithium battery 3 falls into the explosion-proof box 601 set in the energy storage power supply cabinet 1. The fall of the lithium battery 3 causes the bottom plate 602 to be squeezed and moved downward. The explosion-proof cover 603 is rotated and closed by the connecting rope 604, forming a closed isolation environment. The closed isolation environment effectively prevents the spread of fire, smoke and toxic gases, protecting the safety of other lithium batteries 3 and energy storage power supply cabinet 1.

[0081] In summary, compared with existing technologies, it has the following beneficial effects:

[0082] 1. Highly efficient fire extinguishing and fire source cutoff

[0083] Rapid response: Through the design of the energy storage backplate 4, when the lithium battery 3 spontaneously combusts, it can immediately release the stored energy, quickly push the spontaneously combusting lithium battery 3 out of the battery box 2, directly cut off the fire source, and prevent the fire from spreading further.

[0084] Significantly improved fire extinguishing effect: Compared with traditional fire extinguishers, this solution can act more directly and quickly on the fire source itself, significantly improving fire extinguishing efficiency.

[0085] 2. Reduce the risk of reignition

[0086] Completely isolate the fire source: Remove the spontaneously combusting lithium battery 3 from the battery box 2 and place it in a sealed explosion-proof box 601, which effectively isolates the air and combustibles and reduces the risk of reignition.

[0087] Automatic protection mechanism: The automatic protection system, consisting of trigger 9, control rod 902 and limit rod 401, can respond quickly when spontaneous combustion is detected, without the need for manual intervention, thus reducing the possibility of reignition.

[0088] 3. Protect the safety of other lithium batteries and devices.

[0089] Effective isolation: The explosion-proof box 601 in the protective mechanism 6 automatically closes when the lithium battery 3 falls, forming a closed isolation environment, which effectively prevents the spread of fire, smoke and toxic gases to other lithium batteries 3 and energy storage power supply devices.

[0090] Reduced chain reaction: By quickly cutting off the fire source and isolating the fire scene, the risk of other lithium batteries spontaneously combusting or exploding due to high temperature is greatly reduced, protecting the safety of the entire energy storage power station.

[0091] 4. Improve system stability and reliability

[0092] Reduced downtime: Because it can quickly cut off the fire source and isolate the fire scene, it reduces the system downtime caused by fire, and improves the operating efficiency and stability of the energy storage power station.

[0093] Reduced maintenance costs: By minimizing fire damage to equipment and batteries, subsequent repair and replacement costs are reduced.

[0094] 5. Environmental Protection and Sustainability

[0095] Reduced environmental pollution: Compared with traditional fire extinguishing methods (such as using dry powder fire extinguishers), it produces less environmental pollution during the fire extinguishing process and is more in line with environmental protection requirements.

[0096] Improved resource utilization: By reducing equipment damage and scrapping caused by fire, resource utilization efficiency is improved.

[0097] Therefore, although the invention has been described herein with reference to specific embodiments thereof, freedom of modification, various changes and substitutions are also within the scope of the foregoing disclosure, and it should be understood that in some cases, certain features of the invention may be adopted without departing from the scope and spirit of the invention and without corresponding use of other features. Thus, many modifications can be made to adapt a particular environment or material to the essential scope and spirit of the invention. The invention is not intended to be limited to the specific terminology used in the following claims and / or the specific embodiments disclosed as the best mode for carrying out the invention, but the invention will include any and all embodiments and equivalents falling within the scope of the appended claims. Therefore, the scope of the invention will be defined only by the appended claims.

Claims

1. An energy storage power supply device with protective functions, characterized in that, include: Energy storage power supply cabinet (1) is used to house and protect internal components; A battery box (2) is installed inside the energy storage power supply cabinet (1) to house and separate lithium batteries (3). A lithium battery (3) is installed inside the battery box (2) for energy storage and power supply; The energy storage backplate (4) is installed inside the battery box (2) and contacts the lithium battery (3). The energy storage backplate (4) is configured to move and store energy when the lithium battery (3) is inserted into the battery box (2). When the lithium battery (3) spontaneously combusts, the energy storage backplate (4) releases the stored energy and pushes the lithium battery (3) out of the battery box (2). The fixing part (8) is installed on the power storage back plate (4) and connected to the lithium battery (3) for receiving and accommodating the lithium battery (3) pushed out by the power storage back plate (4). The protective mechanism (6) is installed inside the energy storage power supply cabinet (1) to provide a closed isolation environment for the spontaneously combusting lithium battery (3), effectively preventing the spread of fire, smoke and toxic gases inside the energy storage power supply cabinet (1) and protecting the safety of other lithium batteries (3) and the energy storage power supply cabinet (1). The energy storage backplate (4) includes: Two limiting rods (401) are installed on the power storage back plate (4). Two limiting grooves (201) are opened on the inner wall of the battery box (2). The limiting rods (401) are connected in the limiting grooves (201). The limiting rods (401) are used to fix the position of the power storage back plate (4) in the battery box (2). The energy storage backplate (4) also includes: Two through holes (402) are provided on the power storage back plate (4); Two movable holes (403) are respectively opened on the sidewalls of two through holes (402), and the limiting rod (401) is connected in the movable holes (403); The energy storage backplate (4) also includes: Two connecting holes are respectively opened on the inner wall of the two movable holes (403); Two movable blocks (404) are respectively connected in two connecting holes, and the movable blocks (404) are connected to the limiting rod (401); Two first elastic elements (405) are connected at one end to the inner wall of the connecting hole and at the other end to the moving block (404); Also includes: Two triggers (9) are installed on the battery box (2). One end of the two triggers (9) is set on one side of the lithium battery (3) and connected through a connector (901). The triggers (9) are used to detect the spontaneous combustion state of the lithium battery (3). When the lithium battery (3) spontaneously combusts, the triggers disconnect and release the fixed restriction of the power storage backplate (4). The trigger (9) includes a control rod (902) installed in the battery box (2). One end of the trigger (9) is connected to the control rod (902), and one end of the control rod (902) extends into the through hole (402) and contacts the limiting rod (401). The trigger (9) also includes: The second elastic element (903) is connected at one end to the control lever (902) and at the other end to the inner wall of the battery box (2), and is used to provide a restoring force for the control lever (902) to its initial position.

2. The energy storage power supply device with protective function according to claim 1, characterized in that: The protective mechanism (6) includes: An explosion-proof box (601) is installed inside the energy storage power supply cabinet (1); An explosion-proof cover (603) is installed on the explosion-proof box (601); The base plate (602), connected inside the explosion-proof box (601), is configured to be squeezed and moved downward when the lithium battery (3) falls into the explosion-proof box (601), in order to control the explosion-proof cover (603) to rotate and close the explosion-proof box (601). Two connecting ropes (604) are connected at one end to the explosion-proof cover (603) and at the other end to the base plate (602); Cabinet door (5) is installed on the energy storage power supply cabinet (1), and explosion-proof box (601) is installed on the cabinet door (5).

3. The energy storage power supply device with protective function according to claim 1, characterized in that: Also includes: The third elastic element (10) is connected at one end to the power storage back plate (4) and at the other end to the inner wall of the battery box (2); Two electrical connection parts (7) are installed inside the energy storage power supply cabinet (1) to provide positive and negative terminals for the lithium battery (3).

4. The energy storage power supply device with protective function according to claim 3, characterized in that: The power receiving part (7) includes: The power receiving pole (701) is connected at one end to the power receiving part (7) and at the other end through the battery box (2) and connected to the lithium battery (3). Two power receiving heads (301) are connected to one side of the lithium battery (3), and the power receiving pole (701) is connected to the power receiving heads (301).

5. The energy storage power supply device with protective function according to claim 1, characterized in that: The fixing part (8) includes: A groove (801) is formed on the fixing part (8); The limiting angle plate (802) is installed in the groove (801) and is configured to press the limiting angle plate (802) against the inner wall of the battery box (2) when the fixing part (8) moves into the battery box (2) along with the power storage back plate (4) to limit the lithium battery (3).

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