A mobile power supply with pressure relief explosion-proof function

Abstract

The present application relates to the technical field of power supply, in particular to a mobile power supply with pressure relief and explosion-proof function, comprising: a trolley; a mounting column, the trolley's trolley plate is fixedly connected with the mounting column; a side sealing plate, the trolley plate is slidably connected with the side sealing plate; a top plate, the mounting column is fixedly connected with the top plate; a mounting frame, the trolley plate is fixedly connected with the mounting frame; a battery pack, the mounting frame is fixedly connected with the battery pack; a pressure relief valve pipe, the side of the mounting frame is fixedly connected with the pressure relief valve pipe; a connecting valve sleeve, the pressure relief valve pipe is slidably connected with the connecting valve sleeve. The valve group composed of the connecting valve sleeve and the pressure relief valve pipe, and the side sealing plate which can be unfolded are used for pressure relief, the control of the pressure relief means is directly controlled by the pressure inside the present application, the reaction time is directly saved, and the explosion burst is prevented from turning into an uncontrollable stage by rapid pressure relief.

Description

Technical Field

[0001] This invention relates to the field of power supply technology, and more specifically to a portable power supply with pressure relief and explosion-proof function. Background Technology

[0002] A portable power bank is an energy storage device whose core function is to store electrical energy through a battery pack and output a stable power supply when needed to meet the power requirements of high-power devices or long-term power supply. To ensure the safety of the battery pack, it is usually protected by a sealed casing.

[0003] To prevent batteries from exploding under abnormal conditions such as overcharging, overheating, or internal short circuits during use, existing power banks typically employ pressure relief valves as the primary means of pressure relief and explosion prevention. When the internal pressure of the battery suddenly increases, the pressure relief valve automatically opens, releasing the gas and heat accumulated inside the battery, thereby reducing the risk of explosion.

[0004] However, pressure relief valves have certain limitations in practical use. First, they require a certain reaction time and may fail to function effectively due to delayed response. Second, multiple pressure relief valves may not activate synchronously, leading to uneven pressure relief and pressure imbalance, thus making the safety of the power bank extremely unstable. Summary of the Invention

[0005] In view of the technical defects mentioned in the background art, the present invention proposes a portable power supply with pressure relief and explosion-proof function that can respond quickly and relieve pressure evenly.

[0006] The technical solution of the present invention is: a portable power supply with pressure relief and explosion-proof function, comprising: a trolley, wherein a handle is fixedly connected to the trolley;

[0007] Mounting column: The mounting column is fixedly connected to the trolley panel;

[0008] Side sealing plate, a side sealing plate is slidably connected to the trolley plate;

[0009] A top plate is fixedly connected to the mounting column, and an installation space is formed between the top plate, the side sealing plate, and the trolley plate.

[0010] Mounting frame: A mounting frame is fixedly connected to the trolley plate, and the mounting frame is located within the mounting space;

[0011] A battery pack, which is fixedly connected within the mounting frame;

[0012] A pressure relief valve pipe is fixedly connected to the side of the mounting frame;

[0013] A connecting valve sleeve is slidably connected to the pressure relief valve pipe. The connecting valve sleeve is fixedly connected to the side sealing plate. The connecting valve sleeve and the pressure relief valve pipe form a valve group. A valve group is provided between each side of the mounting frame and each side sealing plate.

[0014] A connecting arm is rotatably connected to the mounting column;

[0015] A connecting block is slidably connected to the side sealing plate, and the connecting block is rotatably connected to the connecting arm.

[0016] Furthermore, it also includes: an injector, which is fixedly connected to the top plate, and the injector, when opened, sprays flame retardant material inside;

[0017] A nozzle is fixedly connected to the top plate, and the nozzle faces the installation space;

[0018] A connecting pipe is fixedly connected between the injector and the nozzle;

[0019] A protective frame is provided outside the injector.

[0020] Furthermore, a sliding groove is provided on the top plate;

[0021] It also includes: a starter plate, which is rotatably connected to the top plate and is fixedly connected to the control switch of the injector;

[0022] A connecting rod is slidably connected within the groove. One end of the connecting rod is slidably connected to the starter disk, and the other end of the connecting rod is fixedly connected to the side sealing plate. When the side sealing plate moves, the rotation of the starter disk is controlled by the connecting rod.

[0023] Furthermore, it also includes: mesh windows, with mesh windows fixedly connected to the bottom of the side sealing plate and the trolley plate. When the side sealing plate is closed, the mesh windows on the side sealing plate and the mesh windows on the trolley plate are staggered, closing the opening between the mesh windows. When the side sealing plate is unfolded, the mesh windows on the side sealing plate and the mesh windows on the trolley plate overlap, opening the opening between the mesh windows.

[0024] Furthermore, the battery pack is assembled and fixedly connected within the mounting frame, the top plate is assembled and fixedly connected to the mounting column, and the connecting rod is inserted and fixedly connected to the side sealing plate.

[0025] Furthermore, the starter disk is fixedly connected to the control switch of the injector by insertion, and the injector is fixedly connected to the connecting pipe by assembly.

[0026] It also includes: a buckle, which is fixedly connected to the top plate and is inserted into the protective frame for fixed connection.

[0027] Furthermore, it also includes: a mounting bracket, which is fixedly connected to the handrail;

[0028] A placement frame is provided on the mounting frame;

[0029] Fire extinguisher, and the placement frame contains a fire extinguisher.

[0030] Furthermore, the mounting bracket is rotatably connected to the placement frame, allowing the fire extinguisher to have two states: a placement state and a usage state.

[0031] This invention has the following advantages: It uses a valve assembly consisting of a connecting valve sleeve and a pressure relief valve pipe, along with a deployable side sealing plate for pressure relief. This allows the pressure relief mechanism to be directly controlled by the internal pressure of the invention, directly saving reaction time and preventing a sudden explosion from escalating into an uncontrollable stage. The valve assemblies in this invention can perform pressure relief synchronously, ensuring internal pressure balance and further reducing the possibility of a sudden explosion due to pressure imbalance. When the side sealing plate is deployed, a low-temperature airflow from the outside is introduced in conjunction with the pressure difference to cool the interior of the invention, reducing the likelihood of combustion due to temperature rise. This invention uses a sprayer to inject flame retardant to slow the spread of fire, combined with a mesh window to limit the direction of fire spread, achieving fire control. This invention uses a fire extinguisher as a third-stage fire control measure to prevent further fire escalation leading to an explosion or prolonging the time before the fire becomes uncontrollable, thus buying valuable time for subsequent firefighting measures. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0033] Figure 2 This is a schematic diagram of the side sealing plate when it is closed in this invention.

[0034] Figure 3 This is a separate diagram of the connection structure of the side sealing plate, battery pack, pressure relief valve pipe and connecting valve sleeve in this invention.

[0035] Figure 4 This is a schematic diagram of the connection structure of the side sealing plate, the injector, and the connecting rod in this invention.

[0036] Figure 5 This is a separate diagram of the connection structure of the starter disk, injector, protective frame and connecting rod in this invention.

[0037] Figure 6 This is a schematic diagram of the connection structure of the mounting bracket, placement frame, and fire extinguisher in this invention.

[0038] Figure 7 This is a schematic diagram of the connection structure after the placement frame is rotated in this invention.

[0039] Component names and numbers in the diagram: 1_Trolley, 2_Handrail, 3_Mounting column, 4_Side sealing plate, 5_Top plate, 6_Mounting frame, 7_Battery pack, 8_Pressure relief valve pipe, 9_Connecting valve sleeve, 10_Connecting arm, 11_Connecting block, 12_Mesh window, 13_Starting disc, 14_Sprayer, 15_Nozzle, 16_Connecting pipe, 17_Slide groove, 18_Connecting rod, 19_Snap fastener, 20_Protective frame, 21_Mounting bracket, 22_Placement frame, 23_Fire extinguisher. Detailed Implementation

[0040] The present invention will be further described below with reference to specific embodiments. It should also be noted that, unless otherwise explicitly specified and limited, terms such as "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0041] Example: A portable power bank with pressure relief and explosion-proof function, see reference. Figures 1-3 The system includes: a trolley 1; a handle 2, which is fixedly installed at the rear of the trolley 1; mounting posts 3, which are fixedly installed at the four corners of the trolley 1 platform; side sealing plates 4, which are slidably installed on the sides of the trolley 1 platform; a top plate 5, which is assembled and fixedly installed between the tops of the four mounting posts 3, forming an installation space between the top plate 5, the four side sealing plates 4, and the trolley 1 platform; a mounting frame 6, which is fixedly installed in the middle of the trolley 1 platform, and is located within the aforementioned installation space; and a battery pack 7, which is assembled and fixedly installed within the mounting frame 6. The side sealing plate 4 forms a double protection for the battery pack 7; the pressure relief valve pipe 8 is fixedly installed on the side of the mounting frame 6; the connecting valve sleeve 9 is slidably installed on the pressure relief valve pipe 8, and the end of the connecting valve sleeve 9 is fixedly installed with the side sealing plate 4. Each side of the mounting frame 6 and each side sealing plate 4 is provided with a valve group consisting of the connecting valve sleeve 9 and the pressure relief valve pipe 8. The four valve groups will achieve uniform pressure relief; the connecting arm 10 is rotatably installed on the mounting column 3; the connecting block 11 is slidably installed on the side sealing plate 4, and the connecting block 11 is rotatably installed between the connecting arm 10 and the connecting block 11.

[0042] When the battery pack 7 experiences thermal runaway due to various reasons, causing a sudden increase in air pressure within the mounting frame 6, the air pressure within the mounting frame 6 can immediately push the connecting valve sleeve 9 to slide relative to the pressure relief valve pipe 8, thereby opening the pressure relief channel at the valve assembly. This allows the interior of the mounting frame 6 to communicate with the outside through the pressure relief valve pipe 8. This process can prevent further increase in air pressure by releasing the air pressure within the mounting frame 6, thus stabilizing the air pressure within the mounting frame 6 and reducing the possibility of the power bank exploding. Furthermore, since each side of the mounting frame 6 is equipped with a valve assembly, air pressure can be evenly released through the valve assemblies in four directions, maintaining a balance in the air pressure within the mounting frame 6 and reducing the danger caused by pressure imbalance in the power bank.

[0043] Since thermal runaway of battery pack 7 can not only cause a sudden increase in pressure but also lead to combustion due to excessive temperature, in this power bank, as the connecting valve sleeve 9 moves along the pressure relief valve pipe 8, the connecting valve sleeve 9 will push the side sealing plate 4, which is fixedly connected to it, to move outward, thereby unfolding the side sealing plate 4. As the side sealing plate 4 unfolds, the cold airflow from the outside can enter the side sealing plate 4, thereby cooling the inside of the power bank and reducing the risk of combustion caused by a rapid increase in temperature inside the power bank.

[0044] See Figure 1 , Figure 3 , Figure 4 and Figure 5 It also includes: mesh windows 12, which are fixedly installed on the bottom of the side sealing plate 4 and on the trolley 1. When the side sealing plate 4 is in the closed state, the mesh windows 12 of the side sealing plate 4 and the mesh windows 12 of the trolley 1 are staggered, which will close the opening between the mesh windows 12. When the side sealing plate 4 is in the unfolded state, the mesh windows 12 of the side sealing plate 4 and the mesh windows 12 of the trolley 1 are overlapped, which will open the opening between the mesh windows 12; a starter plate 13, which is rotatably installed in the center of the top surface of the top plate 5; an injector 14, which is fixedly installed in an insert type on the top plate 5. The starter plate 13 can be inserted into the control switch of the injector 14. When the injector 14 is opened, it will spray the flame retardant inside; and a nozzle 15, which is fixedly installed on the bottom surface of the top plate 5. 15 Facing the aforementioned installation space; Connecting pipe 16, a connecting pipe 16 is fixedly installed between the injector 14 and the nozzle 15, the injector 14 and the connecting pipe 16 are assembled and fixed, the connecting pipe 16 and the nozzle 15 are fixedly installed; Four sliding grooves 17 are provided on the top plate 5; Connecting rod 18, a connecting rod 18 is slidably installed in each sliding groove 17, one end of the connecting rod 18 is slidably installed with the starter plate 13, and the other end of each connecting rod 18 is respectively fixedly inserted with each side sealing plate 4, when the side sealing plate 4 moves, the starter plate 13 will be controlled to rotate through the connecting rod 18; Buckle 19, a buckle 19 is fixedly installed on the top plate 5; Protective frame 20, a protective frame 20 is fixedly installed between the buckles 19, the protective frame 20 covers the outside of the injector 14.

[0045] When the side sealing plate 4 unfolds outward, the openings between the mesh windows 12 will be opened. At the same time, the side sealing plate 4 will rotate the starter disc 13 through the connecting rod 18, and the control injector 14 will be opened. The injector 14 sprays flame retardant to delay the continued expansion of the battery pack 7 after it enters the combustion stage. Furthermore, driven downward by the high-speed flowing flame retardant, the flame generated when the battery pack 7 is burning will be guided downward, so that the flame is directed from the position of the mesh window 12 to the outside. That is, by restricting the direction of combustion, the combustion state of the flame is reduced, thereby achieving the purpose of reducing the spread of fire.

[0046] In this power bank, both the battery pack 7 and the injector 14 are designed to be detachable for easy inspection and maintenance, ensuring their proper functioning. When the battery pack 7 needs inspection, disconnect the connection between the connecting rod 18 and the side sealing plate 4, and then disconnect the connection between the top plate 5 and the mounting post 3 to open the installation space for inspection. After inspection, re-fix the top plate 5 to the mounting post 3 and reinstall the connecting rod 18 and the side sealing plate 4. When the injector 14 needs inspection, rotate the protective frame 20 to remove it from the clips 19. Then, disconnect the connection between the injector 14 and the connecting pipe 16, and disconnect the injector 14 control switch from the starter plate 13. The injector 14 can then be removed from the power bank for inspection. After inspection, reinstall the injector 14 onto the top plate 5 and reconnect it to the connecting pipe 16, reconnecting its control switch to the starter plate 13. Finally, reinstall the protective frame 20 back onto the injector 14.

[0047] See Figure 1 , Figure 6 and Figure 7 It also includes: a mounting bracket 21, which is fixedly mounted on the handrail 2; a placement frame 22, which is rotatably mounted on the mounting bracket 21; and a fire extinguisher 23, which is placed inside the placement frame 22.

[0048] When using this power bank normally, the fire extinguisher 23 is stored horizontally in the placement frame 22, which will not easily hinder the use of the power bank.

[0049] In some extreme cases, if the above-mentioned pressure relief and cooling measures still cannot stop the spread of fire, the placement frame 22 can be rotated to adjust the fire extinguisher 23 to face the main body of the mobile power supply, and the fire extinguisher 23 can be used immediately to extinguish the fire. This serves as a third-stage fire control measure before other fire extinguishing methods arrive on site, in order to prevent the fire from deteriorating further and causing an explosion or prolonging the time it takes for the fire to become uncontrollable, thus buying valuable time for subsequent fire extinguishing measures.

[0050] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that variations may be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mobile power supply with pressure relief explosion-proof function, characterized in that it comprises: A stroller (1) is provided with a handrail (2) fixedly connected thereto; A mounting column (3) is fixedly connected to the stroller (1); A side sealing plate (4) is slidingly connected to the stroller (1); A top plate (5) is fixedly connected to the mounting column (3), and a mounting space is formed between the top plate (5), the side sealing plate (4) and the stroller (1); An installation frame (6) is fixedly connected to the stroller (1) and arranged in the mounting space; A battery pack (7) is fixedly connected to the installation frame (6); A pressure relief valve pipe (8) is fixedly connected to the side of the installation frame (6); A connecting valve sleeve (9) is slidingly connected to the pressure relief valve pipe (8) and fixedly connected to the side sealing plate (4), and the connecting valve sleeve (9) and the pressure relief valve pipe (8) form a valve group, and each side of the installation frame (6) is provided with a valve group between each side sealing plate (4); A connecting arm (10) is rotatably connected to the mounting column (3); A connecting block (11) is slidingly connected to the side sealing plate (4) and rotatably connected between the connecting arm (10); Further comprising: an ejector (14) fixedly connected to the top plate (5), and the ejector (14) opens to spray the fire-retardant material therein; A spray head (15) is fixedly connected to the top plate (5) and faces the mounting space; A connecting pipe (16) is fixedly connected between the ejector (14) and the spray head (15); A protection frame (20) is arranged outside the ejector (14); Further comprising: a mesh window (12) fixedly connected to the bottom of the side sealing plate (4) and the stroller (1), when the side sealing plate (4) is folded, the mesh window (12) on the side sealing plate (4) is staggered with the mesh window (12) on the stroller (1), closing the opening between the mesh windows (12), and when the side sealing plate (4) is unfolded, the mesh window (12) on the side sealing plate (4) coincides with the mesh window (12) on the stroller (1), opening the opening between the mesh windows (12); Further comprising: a mounting bracket (21) fixedly connected to the handrail (2); A placing frame (22) is arranged on the mounting bracket (21); A fire extinguisher (23) is placed in the placing frame (22).

2. The mobile power supply with pressure relief and explosion-proof function according to claim 1, characterized in that: A sliding groove (17) is arranged on the top plate (5); Further comprising: a starting disc (13) rotatably connected to the top plate (5) and fixedly connected to the control switch of the ejector (14). A connecting rod (18) is slidably connected in the chute (17), one end of the connecting rod (18) is slidably connected with the starting disc (13), the other end of the connecting rod (18) is fixedly connected with the side sealing plate (4), and the side sealing plate (4) is moved to control the starting disc (13) to rotate through the connecting rod (18).

3. The mobile power supply with pressure relief and explosion-proof function according to claim 2, characterized in that: The battery pack (7) is assembled and fixedly connected in the mounting frame (6), the top plate (5) is assembled and fixedly connected on the mounting column (3), and the connecting rod (18) is insertedly fixedly connected with the side sealing plate (4).

4. The mobile power supply with pressure relief and explosion-proof function according to claim 3, characterized in that: The starting disc (13) is insertedly fixedly connected with the control switch of the sprayer (14), and the sprayer (14) is assembled and fixedly connected with the connecting pipe (16). Further comprising: a buckle (19) fixedly connected on the top plate (5), and the buckle (19) is insertedly fixedly connected with the protection frame (20).

5. The mobile power supply with pressure relief and explosion-proof function according to claim 4, characterized in that: The mounting rack (21) is rotatably connected with the placing frame (22), so that the fire extinguisher (23) has two states of a placing state and a using state.

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