Energy storage power supply device with protection function

Abstract

The invention relates to the field of power supply devices, and discloses an energy storage power supply device with a protection function, and the device comprises an energy storage power supply cabinet which is used for accommodating and protecting internal components; the battery box is mounted in the energy storage power supply cabinet and is used for accommodating and separating lithium batteries; the lithium battery is arranged in the battery box and is used for storing energy and supplying power; and the power storage back plate is mounted in the battery box and is in contact with the lithium battery. According to the invention, through the design of the force storage back plate, when the lithium battery is spontaneously combusted, stored energy can be immediately released, the spontaneously combusted lithium battery is quickly pushed out of the battery box, a fire source is directly cut off, further spreading of fire is avoided, and meanwhile, the spontaneously combusted lithium battery is moved out of the battery box and placed in the closed explosion-proof box; air and combustibles are effectively isolated, the risk of after-combustion is reduced, the system downtime caused by fire disasters is shortened, and the operation efficiency and stability of the energy storage power supply station are improved.

Description

Technical Field

[0001] The present invention relates to the field of power supply devices, and in particular to an energy storage power supply device with a protective function. Background Art

[0002] The energy storage power supply device is a highly efficient energy storage device, whose core function is to centrally store electrical energy so as to supply power during peak hours of electricity demand or in emergency situations. It is mainly composed of batteries, inverters and control systems, of which the battery is responsible for storing electrical energy, and the inverter converts DC power into AC power for use by various electrical equipment. Lithium-ion batteries are currently the most commonly used energy storage batteries in power energy storage cabinets.

[0003] At present, although there are various methods to deal with spontaneous combustion of lithium batteries in energy storage power supply devices, they are generally relatively simple in actual application in energy storage power supply stations. Common treatment methods include using dry powder fire extinguishers, injecting water into lithium batteries, and continuously spraying water into power supply stations. However, these conventional methods have obvious limitations when dealing with spontaneous combustion of lithium batteries.

[0004] Limited fire extinguishing effect: When a lithium battery spontaneously ignites, the fire is fierce and difficult to control. Conventional fire extinguishers often cannot extinguish the fire in a short period of time, especially when the fire has spread to multiple lithium batteries.

[0005] Easy to cause reignition: Even if the fire is temporarily controlled by a fire extinguisher, due to the complex internal materials and structure of the lithium battery, the fire source may not be completely extinguished, and there is a risk of reignition.

[0006] Damage to other batteries: During the fire-fighting process, if the spread of the fire cannot be effectively controlled, other lithium batteries installed in the same area may also spontaneously combust and explode due to high temperatures, causing greater losses. Summary of the invention

[0007] In order to solve the above-mentioned problems, the present invention is implemented through the following technical solutions:

[0008] An energy storage power supply device with a protective function, comprising:

[0009] Energy storage power supply cabinet, used to accommodate and protect internal components. As the shell of the entire device, the energy storage power supply cabinet not only provides a solid protective layer to prevent external physical impact and damage, but also forms a closed space to effectively isolate 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] A battery box is installed in the energy storage power supply cabinet and is used to accommodate and separate lithium batteries. The design of the battery box enables the lithium batteries to be installed in the energy storage power supply cabinet in an orderly and safe manner, thereby achieving effective separation between batteries and avoiding the chain reaction of a single battery failure to other batteries. The structure of the battery box also provides convenience for subsequent maintenance and replacement of batteries;

[0011] The lithium battery is installed in the battery box and 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 protection. It can efficiently store and release electrical energy to meet the energy needs of various application scenarios.

[0012] The power storage back plate is installed in the battery box and contacts the lithium battery. The power storage back plate is configured so that when the lithium battery is inserted into the battery box, the power storage back plate is squeezed by the lithium battery to move and store energy. When the lithium battery spontaneously combusts, the power storage back plate releases the stored energy and pushes the lithium battery out of the battery box. The design of the power storage back plate cleverly utilizes the squeezing force generated when the lithium battery is inserted to store this energy. When the lithium battery spontaneously combusts, the power storage back plate 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 is installed on the power storage back plate, connected to the lithium battery, and used to receive and accommodate the lithium battery pushed out by the power storage back plate. The fixing part provides reliable limit and fixation for the position of the lithium battery in the battery box, prevents the lithium battery from shaking and falling off during movement or vibration, and improves the safety and stability of the entire device;

[0014] The protective mechanism is arranged in the energy storage power supply cabinet and is used to provide a closed isolation environment for the spontaneously combusting lithium battery, effectively preventing the spread of fire, smoke and toxic gases in the energy storage power supply cabinet, and protecting the safety of other lithium batteries and the energy storage power supply cabinet.

[0015] The power storage backboard comprises:

[0016] Two limit rods are installed on the power storage back plate. The inner wall of the battery box is provided with two limit grooves. The limit rods are connected in the limit grooves. The limit rods are used to fix the position of the power storage back plate in the battery box.

[0017] The power storage backboard also includes:

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

[0019] Two movable holes are respectively opened on the side walls of the two through holes, and the limiting rods are connected in the movable holes.

[0020] The power storage backboard also includes:

[0021] Two connecting holes are respectively opened on the inner walls of the two moving holes;

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

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

[0024] Also includes:

[0025] Two triggering members are installed on the battery box, one end of the two triggering members is arranged on one side of the lithium battery and connected through a connector, the triggering members are used to detect the spontaneous combustion state of the lithium battery, and are disconnected when the lithium battery spontaneously ignites, thereby releasing the fixing restriction of the power storage back plate;

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

[0027] The trigger also includes:

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

[0029] The protection mechanism comprises:

[0030] An explosion-proof box, arranged in the energy storage power supply cabinet;

[0031] An explosion-proof cover, mounted on the explosion-proof box;

[0032] A bottom plate connected to the explosion-proof box, configured so that when the lithium battery falls into the explosion-proof box, the bottom plate is squeezed and moves downward, so as to control 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 is connected to the bottom plate;

[0034] A 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] A third elastic member, one end of which is connected to the power storage back plate, and the other end of which is connected to the inner wall of the battery box;

[0037] Two power connection parts are installed in the energy storage power supply cabinet and are used to provide positive and negative power connection for the lithium battery.

[0038] The power connection unit comprises:

[0039] The power connection rod has one end connected to the power connection part, and the other end passes through the battery box and is connected to the lithium battery. One side of the lithium battery is connected to two power connection heads, and the power connection rod is connected to the power connection heads.

[0040] The fixing portion comprises:

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

[0042] The limiting angle plate is installed in the groove and is configured so that when the fixing part follows the power storage back plate to move into the battery box, the inner wall of the battery box squeezes the limiting angle plate to limit the lithium battery.

[0043] The present invention provides an energy storage power supply device with a protective function. Compared with the prior art, it has the following beneficial effects:

[0044] 1. Rapid response: Through the design of the energy storage backplane, when the lithium battery spontaneously ignites, the stored energy can be released immediately, and the spontaneously ignited lithium battery can be quickly pushed out of the battery box, directly cutting off the fire source and preventing the further spread of the fire. Compared with traditional fire extinguishers, this solution can act more directly and quickly on the fire source itself, significantly improving the fire extinguishing efficiency.

[0045] 2. Move the self-igniting lithium battery out of the battery box and place it in a closed explosion-proof box, which effectively isolates the air and combustible materials and reduces the risk of re-ignition. The automatic protection system composed of trigger parts, control rods and limit rods can respond quickly when spontaneous combustion is detected, without the need for human intervention, reducing the possibility of re-ignition.

[0046] 3. The explosion-proof box in the protection mechanism automatically closes when the lithium battery falls, forming a closed isolation environment, effectively preventing 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, the risk of other lithium batteries spontaneously igniting or exploding due to high temperature is greatly reduced, protecting the safety of the entire energy storage power supply station.

[0047] 4. Since the fire source can be quickly cut off and the fire scene can be isolated, the system downtime caused by the fire is reduced, the operating efficiency and stability of the energy storage power supply station are improved, and the subsequent maintenance and replacement costs are reduced by reducing the damage to equipment and batteries caused by the fire.

[0048] 5. Compared with traditional fire-fighting methods, the environmental pollution generated during the fire-fighting process is smaller and more in line with environmental protection requirements. By reducing equipment damage and scrapping caused by fire, the efficiency of resource utilization is improved. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0050] Figure 2 This is a schematic structural diagram of the power connection part, battery box, lithium battery, fixing part and trigger member proposed in the present invention.

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

[0052] Figure 4 This is a schematic structural diagram of the lithium battery, power storage back plate, fixing plate and trigger member proposed in the present invention.

[0053] Figure 5 This is a schematic diagram of the cross-sectional structure of the battery box, lithium battery, power storage back plate, power connection part, fixing part and trigger member proposed in the present invention.

[0054] Figure 6 This is a schematic diagram of the internal structure of the battery box, lithium battery, power storage backboard, power connection part, fixing part and trigger part proposed in the present invention.

[0055] Figure 7 This is a schematic structural diagram of the battery box, lithium battery, limit rod and control rod proposed in the present invention.

[0056] Figure 8 This is a schematic diagram of the structure of the protection mechanism proposed by the present invention.

[0057] The reference numerals in the figure are:

[0058] 1. Energy storage power supply cabinet;

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

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

[0061] 4. Power storage back plate; 401. Limit rod; 402. Through hole; 403. Moving hole; 404. Moving block; 405. First elastic member;

[0062] 5. Cabinet door;

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

[0064] 7. Power connection unit; 701. Power connection pole;

[0065] 8. fixing part; 801. groove; 802. limiting angle plate;

[0066] 9. trigger member; 901. joint; 902. control rod; 903. second elastic member;

[0067] 10. A third elastic member. DETAILED DESCRIPTION

[0068] The present invention is further described below in conjunction with specific examples. It should be understood that these examples are only used to illustrate the present invention and are not used to limit the scope of protection of the present invention.

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

[0070] Reference Figure 1-Figure 8 , a power storage and power supply device with a protective function, comprising: an energy storage and power supply cabinet 1, for accommodating and protecting internal components; a battery box 2, installed in the energy storage and power supply cabinet 1, for accommodating and separating lithium batteries 3; lithium batteries 3, installed in the battery box 2, for storing energy and supplying power; a power storage back plate 4, installed in the battery box 2, in contact with the lithium batteries 3, the power storage back plate 4 is configured so that when the lithium batteries 3 are inserted into the battery box 2, the power storage back plate 4 is squeezed by the lithium batteries 3 to move and store energy, and when the lithium batteries 3 spontaneously combust, the power storage back plate 4 releases the stored energy and pushes the lithium batteries 3 out of the battery box 2; a fixing part 8, installed on the power storage back plate 4, connected to the lithium batteries 3, for receiving and accommodating the lithium batteries 3 pushed out by the power storage back plate 4; a protective mechanism 6, arranged in 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 in 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 enables the lithium battery 3 to be installed in the energy storage power supply cabinet 1 in an orderly and safe manner, achieving effective separation between batteries and avoiding the chain reaction of a single battery failure on other batteries; the energy storage power supply cabinet 1 is the outer shell of the entire device, and the energy storage power supply cabinet 1 not only provides a solid protective layer to prevent external physical impact and damage, but also forms a closed space to effectively isolate the internal battery pack from the external environment, reduce the impact of environmental factors on battery performance, and improve the safety and stability of the system; the lithium battery 3 is the core component of the energy storage power supply device, and the lithium battery 3 has the advantages of high energy density, long cycle life and environmental protection, and can efficiently store and release electrical energy to meet the energy needs of various application scenarios; the design of the power storage back plate 4 cleverly utilizes the extrusion force generated when the lithium battery 3 is inserted to store this part of energy. When the lithium battery 3 spontaneously ignites, the power storage back plate 4 can quickly release the stored energy, push the lithium battery 3 out of the battery box 2 by mechanical force, quickly cut off the fire source, and prevent 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 back plate 4 includes: two limit rods 401, which are installed on the power storage back plate 4. The inner wall of the battery box 2 is provided with two limit grooves 201. The limit rods 401 are connected in the limit grooves 201. The limit rods 401 are used to fix the position of the power storage back plate 4 in the battery box 2. The cooperation between the limit rods 401 and the limit grooves 201 limits the movement range of the power storage back plate 4, ensures the stability and reliability of the power storage back plate 4 under normal working conditions, and also provides necessary guidance and constraints for the rapid movement of the power storage back plate 4 when the lithium battery 3 spontaneously ignites.

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

[0074] Reference Figure 4 , Figure 6 and Figure 7 , two trigger members 9 are installed on the battery box 2, one end of the two trigger members 9 is set on one side of the lithium battery 3 and connected through the connector 901, the trigger member 9 is used to detect the self-ignition state of the lithium battery 3, and disconnect when the lithium battery 3 self-ignites, so as to release the fixed restriction of the power storage back plate 4; the trigger member 9 includes a control rod 902, which is installed in the battery box 2, one end of the trigger member 9 is connected to the control rod 902, one end of the control rod 902 extends into the through hole 402 and contacts the limit rod 401; the second elastic member 903, one end of which is connected to the The other end of the control rod 902 is connected to the inner wall of the battery box 2, which is used to provide the control rod 902 with a restoring force to the initial position; the trigger member 9 can monitor the spontaneous combustion state of the lithium battery 3 in real time, and quickly disconnect when an abnormality is detected, thereby releasing the fixed restriction of the power storage back plate 4. The control rod 902 controls the movement of the power storage back plate 4 by contacting and separating with the limit rod 401, thereby realizing the spontaneous combustion protection of the lithium battery 3. The second elastic member 903 provides the necessary elastic support for the reset of the control rod 902.

[0075] Reference Figure 1 and Figure 8The protection mechanism 6 includes: an explosion-proof box 601, which is arranged in the energy storage power supply cabinet 1; an explosion-proof cover 603, which is installed on the explosion-proof box 601; a bottom plate 602, which is connected to the explosion-proof box 601 and is configured so that when the lithium battery 3 falls into the explosion-proof box 601, the bottom plate 602 is squeezed and moves downward, and is used to control the explosion-proof cover 603 to rotate and close the explosion-proof box 601; two connecting ropes 604, one end of which is connected to the explosion-proof cover 603, and the other end is connected to the bottom plate 602; a cabinet door 5, which is installed on the energy storage power supply cabinet 1. On the electric cabinet 1, an explosion-proof box 601 is installed on the cabinet door 5; the protective mechanism 6 provides a closed isolation environment for the self-igniting lithium battery 3, effectively preventing the spread of fire, smoke and toxic gases, and protecting the safety of other lithium batteries 3 and the energy storage power supply cabinet 1. The combined design of the explosion-proof box 601 and the explosion-proof cover 603 enables it to be quickly closed when the lithium battery 3 falls, further improving the protection effect. The cooperation of the connecting rope 604 and the bottom plate 602 realizes the automatic control of the closing of the explosion-proof cover 603.

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

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

[0078] Reference Figure 4The fixing part 8 includes: a groove 801, which is opened on the fixing part 8; a limiting angle plate 802, which is installed in the groove 801 and is configured so that when the fixing part 8 follows the power storage back plate 4 to move into the battery box 2, the inner wall of the battery box 2 squeezes the limiting angle plate 802 to limit the lithium battery 3. The fixing part 8 provides reliable limiting and fixing for the position of the lithium battery 3 in the battery box 2 through the design of the groove 801 and the limiting angle plate 802, prevents the lithium battery 3 from shaking and falling off during movement or vibration, and improves 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 following the power storage back plate 4 to provide a more accurate limiting effect for the lithium battery 3.

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

[0080] During use, the lithium battery 3 is correctly installed in the battery box 2. The lithium battery 3 will squeeze the power storage back plate 4 during the insertion process. The power storage back plate 4 moves and stores energy after being squeezed. The power storage back plate 4 squeezes the third elastic member 10, and the third elastic member 10 is deformed and stores power. At the same time, the limiting rod 401 moves with the power storage back plate 4 to the opening of the limiting groove 201. At the same time, the fixing part 8 moves into the battery box 2 with the power storage back plate 4. The inner wall of the battery box 2 squeezes the limiting angle plate 802. The limiting angle plate 802 fits on the lithium battery 3, pulling the two trigger members 9. The trigger members 9 drives the control rod 902 to move, and the movement of the control rod 902 will squeeze the limit rod 401 to move. The limit rod 401 is inserted into the limit groove 201, which can fix the position of the power storage back plate 4 in the battery box 2, and also fix the position of the lithium battery 3. The joints 901 of the two trigger members 9 are connected and fixed to maintain the positions of the two control rods 902 after movement. The moving rod also squeezes the second elastic member 903. After the lithium battery 3 is inserted into the battery box 2, it is connected to the power connector 301 on the lithium battery 3 through the power connector 701 to achieve electrical connection between the lithium battery 3 and the energy storage power supply cabinet 1. To ensure stable transmission of electric energy, the lithium battery 3 can efficiently store and release electric energy under normal working conditions to meet the energy needs of various application scenarios. Once the lithium battery 3 spontaneously ignites, the trigger member 9 is disconnected due to combustion, and the disconnection of the trigger member 9 causes the control rod 902 to lose support. The second elastic member 903 pushes the control rod 902 to reset, and the control rod 902 is separated from the limit rod 401, releasing the fixed restriction of the power storage back plate 4. After losing the fixed restriction, the power storage back plate 4 quickly releases the stored energy, and the lithium battery 3 is pushed out of the battery box 2 by mechanical force, quickly cutting off the fire source. The pushed out lithium battery 3 is received and contained by the fixing part 8 installed on the power storage back plate 4, preventing the lithium battery 3 from causing further damage during the pushing out process. The pushed out lithium battery 3 falls into the explosion-proof box 601 arranged in the energy storage power supply cabinet 1. The falling of the lithium battery 3 causes the bottom plate 602 to be squeezed and move downward. The explosion-proof cover 603 is pulled by the connecting rope 604 to rotate and close the explosion-proof box 601, forming a closed isolation environment. The closed isolation environment effectively prevents the spread of fire, smoke and toxic gases, and protects the safety of other lithium batteries 3 and the energy storage power supply cabinet 1.

[0081] In summary, compared with the prior art, the present invention has the following beneficial effects:

[0082] 1. Efficient fire extinguishing and fire source cutting off

[0083] Rapid response: Through the design of the power storage back plate 4, when the lithium battery 3 spontaneously ignites, the stored energy can be released immediately, and the spontaneously ignited lithium battery 3 can be quickly pushed out of the battery box 2, directly cutting off the fire source and preventing the fire from spreading further.

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

[0085] 2. Reduce the risk of relapse

[0086] Completely isolate the fire source: move the self-igniting lithium battery 3 out of the battery box 2 and place it in a closed explosion-proof box 601, which effectively isolates the air and combustibles and reduces the risk of re-ignition.

[0087] Automatic protection mechanism: The automatic protection system composed of the trigger member 9, the control rod 902 and the limit rod 401 can respond quickly when spontaneous combustion is detected without manual intervention, thereby reducing the possibility of re-ignition.

[0088] 3. Protect other lithium batteries and devices from damage

[0089] Effective isolation: The explosion-proof box 601 in the protection 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] Reduce chain reactions: By quickly cutting off the fire source and isolating the fire scene, the risk of other lithium batteries 3 spontaneously igniting or exploding due to high temperature is greatly reduced, protecting the safety of the entire energy storage power supply station.

[0091] 4. Improve system stability and reliability

[0092] Reduce downtime: Since the fire source can be quickly cut off and the fire scene can be isolated, the system downtime caused by the fire is reduced, and the operating efficiency and stability of the energy storage power supply station are improved.

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

[0094] 5. Environmental protection and sustainability

[0095] Reduce environmental pollution: Compared with traditional fire-fighting methods (such as using dry powder fire extinguishers), the environmental pollution generated during the fire-fighting process is smaller and more in line with environmental protection requirements.

[0096] Improve resource utilization: By reducing equipment damage and scrapping due to fire, the utilization efficiency of resources is improved.

[0097] Thus, although the invention has been described herein with reference to specific embodiments thereof, freedom of modification, various changes and substitutions are also within the foregoing disclosure, and it should be understood that in some cases, some features of the invention will be employed without the corresponding use of other features without departing from the scope and spirit of the proposed invention. Thus, many modifications may 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 terms used in the claims below and / or the specific embodiments disclosed as the best mode contemplated for carrying out the invention, but the invention will include any and all embodiments and equivalents falling within the scope of the appended claims. Thus, the scope of the invention will be determined solely by the appended claims.

Claims

1. An energy storage power supply device with a protective function, characterized in that: include: An energy storage power supply cabinet (1), used for accommodating and protecting internal components; A battery box (2), installed in the energy storage power supply cabinet (1), and used to accommodate and separate the lithium batteries (3); A lithium battery (3) installed in the battery box (2) for storing energy and supplying power; A power storage back plate (4) is installed in the battery box (2) and contacts the lithium battery (3). The power storage back plate (4) is configured such that when the lithium battery (3) is inserted into the battery box (2), the power storage back plate (4) is squeezed by the lithium battery (3) to move and store energy. When the lithium battery (3) spontaneously ignites, the power storage back plate (4) releases the stored energy and pushes the lithium battery (3) out of the battery box (2); A fixing part (8) is mounted on the power storage back plate (4), connected to the lithium battery (3), and used to receive and accommodate the lithium battery (3) pushed out by the power storage back plate (4); The protection mechanism (6) is arranged in the energy storage power supply cabinet (1) and is used to provide a closed isolation environment for the spontaneously combusting lithium battery (3), effectively preventing the spread of fire, smoke and toxic gases in the energy storage power supply cabinet (1), and protecting the safety of other lithium batteries (3) and the energy storage power supply cabinet (1).

2. The energy storage and power supply device with protection function according to claim 1, characterized in that: The power storage backboard (4) comprises: Two limiting rods (401) are mounted on the power storage back plate (4); the inner wall of the battery box (2) is provided with two limiting grooves (201); the limiting rods (401) are connected in the limiting grooves (201); and the limiting rods (401) are used to fix the position of the power storage back plate (4) in the battery box (2).

3. The energy storage and power supply device with protection function according to claim 2, characterized in that: The power storage backboard (4) further comprises: Two through holes (402) are formed on the power storage back plate (4); The two movable holes (403) are respectively opened on the side walls of the two through holes (402), and the limiting rod (401) is connected in the movable hole (403).

4. The energy storage and power supply device with protection function according to claim 3, characterized in that: The power storage backboard (4) further comprises: Two connecting holes are respectively opened on the inner walls of the two moving holes (403); Two moving blocks (404) are respectively connected in the two connecting holes, and the moving blocks (404) are connected to the limiting rod (401); Two first elastic members (405) have one end connected to the inner wall of the connecting hole and the other end connected to the moving block (404).

5. The energy storage and power supply device with protection function according to claim 3, characterized in that: Also includes: Two trigger members (9) are mounted on the battery box (2), one end of the two trigger members (9) is arranged on one side of the lithium battery (3) and connected via a connector (901), the trigger members (9) are used to detect the spontaneous combustion state of the lithium battery (3), and are disconnected when the lithium battery (3) spontaneously ignites, thereby releasing the fixing restriction of the power storage back plate (4); The trigger member (9) comprises a control rod (902) installed in the battery box (2), one end of the trigger member (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 limit rod (401).

6. The energy storage and power supply device with protection function according to claim 5, characterized in that: The triggering member (9) further comprises: The second elastic member (903) has one end connected to the control rod (902) and the other end connected to the inner wall of the battery box (2), and is used to provide a restoring force for the control rod (902) to return to its initial position.

7. The energy storage and power supply device with protection function according to claim 1, characterized in that: The protection mechanism (6) comprises: An explosion-proof box (601) is arranged in the energy storage power supply cabinet (1); An explosion-proof cover (603) is installed on the explosion-proof box (601); A bottom plate (602) is connected to the explosion-proof box (601) and is configured such that when the lithium battery (3) falls into the explosion-proof box (601), the bottom plate (602) is squeezed and moves downward, so as to control the explosion-proof cover (603) to rotate and close the explosion-proof box (601); Two connecting ropes (604), one end of which is connected to the explosion-proof cover (603) and the other end of which is connected to the bottom plate (602); The cabinet door (5) is installed on the energy storage power supply cabinet (1), and the explosion-proof box (601) is installed on the cabinet door (5).

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

9. The energy storage and power supply device with protection function according to claim 8, characterized in that: The power connection part (7) comprises: A power connection rod (701) has one end connected to the power connection portion (7) and the other end passing through the battery box (2) and connected to the lithium battery (3); one side of the lithium battery (3) is connected to two power connection heads (301), and the power connection rod (701) is connected to the power connection heads (301).

10. The energy storage and power supply device with protection function according to claim 1, characterized in that: The fixing part (8) comprises: A groove (801) is formed on the fixing portion (8); The limiting angle plate (802) is installed in the groove (801) and is configured so that when the fixing portion (8) follows the power storage back plate (4) to move into the battery box (2), the inner wall of the battery box (2) squeezes the limiting angle plate (802) to limit the position of the lithium battery (3).

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