A power bank with automatic safety protection
Through the stabilization frame components and self-spraying fire extinguishing structure, the problems of easy damage and spontaneous combustion of the lithium battery of the power bank are solved, and the stable installation and rapid fire extinguishing protection of the battery are achieved, which improves the safety and reliability of the power bank.
Patent Information
- Application Number
- CN202410520288.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-28
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2044-04-28
AI Technical Summary
The lithium battery fixing method in existing power banks is susceptible to external impact or collision damage, and lacks automatic safety protection function when spontaneous combustion.
The stabilizing frame assembly and inductive self-spraying safety protection fire extinguishing structure are adopted, including the stabilizing frame assembly, battery stabilizing frame assembly and self-spraying fire extinguishing system. The battery is installed and anti-collision through spring pushing, cross shaft structure and temperature sensor. It remains vertical when impacted or shaken. The self-spraying fire extinguishing system sprays fire extinguishing dry powder when the battery is spontaneously ignited.
It realizes the stable installation and protection of the power bank battery when impacted or shaking, ensuring that the battery can quickly extinguish the fire when it is spontaneously ignited, and improving the safety and reliability of use.
Smart Images

Figure CN118263960B_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field of power banks, and particularly relates to a power bank with automatic safety protection. Background Art
[0002] A power bank is actually a high-capacity portable power source. It is a portable device integrating power storage, boosting, and charging management.
[0003] The prior art has the following problems: In actual use of existing power banks, the lithium battery inside is the core component. However, the lithium batteries in existing power banks are all fixedly arranged inside the casing. If there is an external impact, collision, or friction (specifically referring to the friction between the casing and the lithium battery), the impact or collision on the casing can directly act on the lithium battery. This fixed installation method without safety protection can easily lead to the damage of the lithium battery. At the same time, if the lithium battery catches fire (a special situation), the lack of an automatic safety protection function will also cause secondary hazards to the power bank. Summary of the Invention
[0004] To solve the problems raised in the above background art, the present invention provides a power bank with automatic safety protection, which has the characteristic of safe use.
[0005] To achieve the above object, the present invention provides the following technical solution: A power bank with automatic safety protection includes a power bank rear shell assembly. A power bank front shell is provided at the front end of the power bank rear shell assembly, and a stabilizing frame assembly is fixedly arranged inside the power bank rear shell assembly. A battery stabilizing frame assembly for installing the power bank battery is arranged inside the stabilizing frame assembly. The stabilizing frame assembly and the battery stabilizing frame assembly form an anti-collision and anti-shake safety protection frame structure for the power bank battery inside the power bank rear shell assembly, and an induction self-spraying safety protection fire extinguishing structure is formed inside the power bank rear shell assembly.
[0006] In a preferred embodiment of a power bank with automatic safety protection, the power bank rear shell assembly includes a rear shell. A support arm is fixedly arranged on one side inside the rear shell, a temperature sensor is fixedly arranged at the top inside the rear shell, a seat tube is fixedly arranged at the bottom inside the rear shell, a straight tube and a spherical tube are fixedly arranged at the top of the seat tube, a cylinder is fixedly arranged on the other side inside the rear shell through a side rod, a toothed moving tooth arm is fixedly arranged at the bottom of the cylinder, a toothed moving shaft rod is rotatably arranged on the spherical tube through a bearing, a ball head and a toothed moving gear are respectively fixedly arranged at both ends of the toothed moving shaft rod, and a through groove is opened on the ball head;
[0007] The stabilizing frame assembly includes a stabilizing outer frame, and a stabilizing inner frame is rotatably arranged inside the stabilizing outer frame through a bearing and a first shaft rod;
[0008] The battery stabilizing frame assembly includes a stabilizing ball. A gravity weight is fixedly arranged at the bottom of the stabilizing ball, and a central disc is fixedly arranged at the top of the stabilizing ball. A second shaft rod is fixedly arranged in the middle of the stabilizing ball. Four sliding arm seats are arranged on the central disc. An arc-shaped sliding rod is fixedly arranged between two of the sliding arm seats. A tightening spring is sleeved on the arc-shaped sliding rod. A retracting disc is rotatably arranged on the central disc through a bearing and a shaft rod. An arc-shaped chute and a perforated chassis are arranged on the retracting disc. An L-shaped fixing arm is slidably arranged inside the sliding arm seat. A retracting arm and a U-shaped mounting bracket are respectively fixedly arranged at both ends of the L-shaped fixing arm.
[0009] In a preferred embodiment of a power bank with automatic safety protection, the retracting disc rotates above the central disc, the perforated chassis rotates outside the arc-shaped sliding rod, and both ends of the tightening spring respectively abut against the sliding arm seat and the perforated chassis. Through the pushing of the tightening spring, the retracting disc is in a clockwise rotation structure on the central disc.
[0010] In a preferred embodiment of a power bank with automatic safety protection, the L-shaped fixing arm reciprocally slides inside the sliding arm seat. The retracting arm penetrates out from the top of the sliding arm seat, and the retracting arm is inserted into the arc-shaped chute.
[0011] In a preferred embodiment of a power bank with automatic safety protection, through the pushing of the tightening spring, the arc-shaped chute on the retracting disc forms an inward sliding retracting force on the L-shaped fixing arm through the retracting arm, and an installation arm frame structure for installing the power bank battery is formed between the four U-shaped mounting brackets.
[0012] In a preferred embodiment of a power bank with automatic safety protection, the stabilizing ball is rotatably connected to the stable inner frame through the second shaft rod and a bearing, and the stabilizing ball rotates inside the stable inner frame. The outer wall of the stable outer frame is fixedly connected to the support arm. The second shaft rod and the first shaft rod form a cross-shaped shaft arm structure on the same horizontal plane.
[0013] In a preferred embodiment of a power bank with automatic safety protection, through the gravitational force of the gravity weight and the cross-shaped shaft arm structure formed between the second shaft rod and the first shaft rod, the four U-shaped mounting brackets form a power bank battery installation arm frame structure that prevents shaking and impact above the stabilizing ball.
[0014] In a preferred embodiment of a power bank with automatic safety protection, the ball head rotates inside the ball tube, the toothed moving arm and the toothed moving gear are engaged, the seat tube is filled with high-pressure fire extinguishing powder, when the through groove is aligned with the straight tube, the high-pressure fire extinguishing powder in the seat tube quickly sprays out, and when the through groove is not aligned with the straight tube, the high-pressure fire extinguishing powder in the seat tube is sealed inside the seat tube.
[0015] In a preferred embodiment of a power bank with automatic safety protection, a control module, a charging port, etc. are provided on the front shell of the power bank, and the temperature sensor, the cylinder and the control module are electrically connected.
[0016] In a preferred embodiment of a power bank with automatic safety protection, a flexible rubber pad for contact protection of the power bank battery is provided on the inner wall of the U-shaped mounting bracket.
[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: When installing the power bank battery, through the pushing of the tightening spring, when the retracting disc rotates clockwise, at this time, the arc-shaped chute has an inward retracting force on the retracting arm. At this time, the L-shaped fixing arm contracts and slides inward in the sliding arm seat. At this time, a retracting structure is formed between multiple U-shaped mounting brackets. At this time, the power bank battery is installed and fixed between the four U-shaped mounting brackets. At the same time, a flexible rubber cushion layer is provided on the inner wall of the U-shaped mounting bracket of the present invention. Through the flexible rubber cushion layer, flexible protection can be formed on the contact end between the power bank battery and the U-shaped mounting bracket. In this way, it is convenient to install the power bank battery and disassemble and replace it during use. Through the gravity drop of the gravity weight on the stabilizing ball, in cooperation with the cross-axis moving structure between the second shaft rod and the first shaft rod, when the rear shell assembly of the power bank encounters impact or shaking, at this time, through the above structure, the power bank battery is always in a vertically upward placement structure in the rear shell. That is, in this way, the stable installation of the power bank battery is ensured. When encountering impact or shaking, through the above structure, the impact or shaking is isolated or decomposed, so as to ensure the reliability of the installation of the power bank battery. When the power bank battery suddenly catches fire, at this time, the temperature sensor monitors the abnormal temperature, and will start the cylinder through the control module in the front shell of the power bank. The cylinder drives the toothed moving arm to move downward. At this time, because the toothed moving arm is engaged with the toothed moving gear, at this time, the toothed moving gear drives the ball head to rotate through the toothed moving shaft rod. When the ball head rotates in the ball tube, at this time, the through groove will continuously face the straight tube, forming a channel. At this time, the high-pressure fire extinguishing powder in the seat tube is ejected, making a fire prevention and self-ignition extinguishing environment in the seat tube, so as to ensure the use safety of the power bank. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 is an exploded view of the present invention;
[0019] Figure 2 is a three-dimensional view of the present invention;
[0020] Figure 3 is a three-dimensional view of the rear shell assembly of the power bank of the present invention;
[0021] Figure 4 is an exploded view of a partial structure of the rear shell assembly of the power bank of the present invention;
[0022] Figure 5 is a three-dimensional view of the stabilizing frame assembly and the battery stabilizing frame assembly of the present invention;
[0023] Figure 6 This is an exploded view of the stabilizing frame assembly and the battery stabilizing frame assembly of the present invention;
[0024] Figure 7 This is an exploded view of the stabilizing frame assembly of the present invention;
[0025] Figure 8 This is a three-dimensional view of the battery stabilizing frame assembly of the present invention;
[0026] Figure 9 This is an exploded view of the battery stabilizing frame assembly of the present invention;
[0027] In the figure: 100, the rear shell assembly of the power bank; 101, the rear shell; 102, the support arm; 103, the temperature sensor; 104, the cylinder; 105, the side rod; 106, the seat tube; 107, the ball tube; 108, the straight tube; 109, the ball head; 110, the gear-driven tooth arm; 111, the gear-driven gear; 112, the gear-driven shaft rod; 113, the through groove; 200, the stabilizing frame assembly; 201, the outer stabilizing frame; 202, the first shaft rod; 203, the inner stabilizing frame; 300, the battery stabilizing frame assembly; 301, the stabilizing ball; 302, the gravity weight; 303, the second shaft rod; 304, the top spring; 305, the arc-shaped slide bar; 306, the perforated chassis; 307, the arc-shaped chute; 308, the retracting disc; 309, the retracting arm; 310, the U-shaped mounting frame; 311, the L-shaped fixing arm; 312, the sliding arm seat; 313, the central disc; 400, the front shell of the power bank; 500, the power bank battery. Detailed implementation manners
[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.
[0029] Please refer to Figures 1 - 9 As shown, the present invention provides a power bank with automatic safety protection, including a rear shell assembly 100 of the power bank. A front shell 400 of the power bank is provided at the front end of the rear shell assembly 100 of the power bank. And a stabilizing frame assembly 200 is fixedly provided inside the rear shell assembly 100 of the power bank. A battery stabilizing frame assembly 300 for installing a power bank battery 500 is provided inside the stabilizing frame assembly 200. The stabilizing frame assembly 200 and the battery stabilizing frame assembly 300 form an anti-collision and anti-shake safety protection frame structure for the power bank battery 500 inside the rear shell assembly 100 of the power bank, and an induction self-spraying safety protection fire extinguishing structure is formed inside the rear shell assembly 100 of the power bank.
[0030] In a preferred embodiment, please refer to Figure 3 and Figure 4 , the power bank rear shell assembly 100 includes a rear shell 101. On one side inside the rear shell 101, a support arm 102 is fixedly arranged, and at the top end inside the rear shell 101, a temperature sensor 103 is fixedly arranged. At the bottom end inside the rear shell 101, a seat tube 106 is fixedly arranged. At the top of the seat tube 106, a straight tube 108 and a spherical tube 107 are fixedly arranged. On the other side inside the rear shell 101, a cylinder 104 is fixedly arranged through a side rod 105. At the bottom of the cylinder 104, a gear-driven tooth arm 110 is fixedly arranged. On the spherical tube 107, a gear-driven shaft rod 112 is rotatably arranged through a bearing. At both ends of the gear-driven shaft rod 112, a ball head 109 and a gear-driven gear 111 are respectively fixedly arranged. A through groove 113 is formed in the ball head 109. The ball head 109 rotates inside the spherical tube 107. The gear-driven tooth arm 110 and the gear-driven gear 111 are engaged. The seat tube 106 is filled with high-pressure fire extinguishing powder. When the through groove 113 is aligned with the straight tube 108, the high-pressure fire extinguishing powder inside the seat tube 106 sprays out rapidly. When the through groove 113 is not aligned with the straight tube 108, the high-pressure fire extinguishing powder inside the seat tube 106 is sealed inside the seat tube 106. On the front shell 400 of the power bank, a control module, a charging port, etc. are arranged. The temperature sensor 103, the cylinder 104, and the control module are electrically connected.
[0031] In a preferred embodiment, please refer to Figure 7 , the stabilizing frame assembly 200 includes a stabilizing outer frame 201. Inside the stabilizing outer frame 201, a stabilizing inner frame 203 is rotatably arranged through a bearing and a first shaft rod 202.
[0032] In a preferred embodiment, please refer to Figure 8 and Figure 9, the battery stabilizer assembly 300 includes a stabilizing ball 301. A gravity weight 302 is fixedly arranged at the bottom of the stabilizing ball 301, and a central disc 313 is fixedly arranged at the top of the stabilizing ball 301. A second shaft rod 303 is fixedly arranged in the middle of the stabilizing ball 301. Four sliding arm seats 312 are arranged on the central disc 313. An arc-shaped sliding rod 305 is fixedly arranged between two sliding arm seats 312. A top spring 304 is sleeved on the arc-shaped sliding rod 305. A retracting disc 308 is rotatably arranged on the central disc 313 through a bearing and a shaft rod. An arc-shaped chute 307 and a perforated chassis 306 are arranged on the retracting disc 308. An L-shaped fixing arm 311 is slidably arranged inside the sliding arm seat 312. A retracting arm 309 and a U-shaped mounting bracket 310 are respectively fixedly arranged at both ends of the L-shaped fixing arm 311. A flexible rubber pad for contact protection of the power bank battery 500 is arranged on the inner wall of the U-shaped mounting bracket 310. The retracting disc 308 rotates above the central disc 313, and the perforated chassis 306 rotates outside the arc-shaped sliding rod 305. Both ends of the top spring 304 respectively abut against the sliding arm seat 312 and the perforated chassis 306. Through the pushing of the top spring 304, the retracting disc 308 is in a clockwise rotation structure on the central disc 313. The L-shaped fixing arm 311 reciprocally slides inside the sliding arm seat 312. The retracting arm 309 penetrates out from the top of the sliding arm seat 312, and the retracting arm 309 is inserted into the arc-shaped chute 307. Through the pushing of the top spring 304, the arc-shaped chute 307 on the retracting disc 308 forms an inward sliding retracting force on the L-shaped fixing arm 311 through the retracting arm 309. An installation arm structure for installing the power bank battery 500 is formed between the four U-shaped mounting brackets 310. The stabilizing ball 301 is rotatably connected to the stable inner frame 203 through the second shaft rod 303 and a bearing, and the stabilizing ball 301 rotates inside the stable inner frame 203. The outer wall of the stable outer frame 201 is fixedly connected to the support arm 102. The second shaft rod 303 and the first shaft rod 202 form a cross-shaped shaft arm structure on the same horizontal plane. Through the gravity of the gravity weight 302 and the cross-shaped shaft arm structure formed between the second shaft rod 303 and the first shaft rod 202, an installation arm structure for the power bank battery 500 that prevents shaking and impact is formed above the stabilizing ball 301 by the four U-shaped mounting brackets 310.
[0033] Generally speaking, when installing the power bank battery 500, the retracting disc 308 is rotatably arranged above the central disc 313 through a shaft rod and a bearing at this time. At the same time, the perforated bottom plate 306 is sleeved and slid on the arc-shaped slide rod 305. At this time, through the pushing of the pressing spring 304, the retracting disc 308 is in a clockwise rotation structure above the central disc 313. Since the L-shaped fixed arm 311 slides in the sliding arm seat 312 and the retracting arm 309 is inserted into the arc-shaped chute 307, when the retracting disc 308 rotates clockwise, at this time, the arc-shaped chute 307 has an inward retracting force on the retracting arm 309. At this time, the L-shaped fixed arm 311 contracts and slides inward in the sliding arm seat 312. At this time, a retracting structure is formed between the plurality of U-shaped mounting brackets 310. At this time, the power bank battery 500 is installed and fixed between the four U-shaped mounting brackets 310. At the same time, the inner wall of the U-shaped mounting bracket 310 of the present invention is provided with a flexible rubber cushion layer, and through the flexible rubber cushion layer, a flexible protection can be formed on the contact end between the power bank battery 500 and the U-shaped mounting bracket 310. In this way, it is convenient to install the power bank battery 500 and disassemble and replace it during use.
[0034] On the above basis, the stabilizing balls 301 below the four sliding arm seats 312 rotate in the stable inner frame 203 through bearings and the second shaft rod 303. The first shaft rod 202 on the stable inner frame 203 rotates in the stable outer frame 201 through a bearing. At this time, a cross-axis structure is formed between the first shaft rod 202 and the second shaft rod 303. At the same time, a gravity weight 302 is fixedly arranged below the stabilizing ball 301. During actual use, through the gravity pull of the gravity weight 302 on the stabilizing ball 301, in cooperation with the cross-axis movable structure between the second shaft rod 303 and the first shaft rod 202, when the power bank rear shell assembly 100 encounters an impact or shaking, at this time, through the above structure, the power bank battery 500 is always in a vertically upward placement structure in the rear shell 101, that is, in this way, the stable installation of the power bank battery 500 is ensured. When encountering an impact or shaking, through the above structure, the impact or shaking is isolated or decomposed, so as to ensure the reliability of the installation of the power bank battery 500.
[0035] On the basis described above, a seat tube 106 is provided inside the rear shell 101. The seat tube 106 is filled with high-pressure fire extinguishing powder, and a temperature sensor 103 is provided at the top of the rear shell 101. When the power bank battery 500 suddenly catches fire due to an unexpected situation, at this time, the temperature sensor 103 monitors an abnormal temperature and will activate the cylinder 104 through the control module inside the front shell 400 of the power bank. The cylinder 104 drives the gear moving tooth arm 110 to move downward. At this time, since the gear moving tooth arm 110 is engaged with the gear moving gear 111, the gear moving gear 111 drives the ball head 109 to rotate through the gear moving shaft rod 112. When the ball head 109 rotates inside the ball tube 107, the through groove 113 will continuously face the straight tube 108, forming a passage. At this time, the high-pressure fire extinguishing powder inside the seat tube 106 is ejected, creating a fire extinguishing environment to prevent spontaneous combustion inside the seat tube 106, thereby ensuring the safe use of the power bank. (It should be emphasized in the present invention that the stroke of the cylinder 104 is controlled by the control module inside the front shell 400 of the power bank. When the cylinder 104 drives the gear moving tooth arm 110 to move downward to the bottom, the through groove 113 is exactly facing the straight tube 108. When the cylinder 104 drives the gear moving tooth arm 110 to move upward to the top, the through groove 113 is not exactly facing the straight tube 108.)
[0036] In the present invention, the power bank battery 500 is electrically connected to the charging port on the front shell 400 of the power bank. The connection method is a known technology, so it will not be elaborated here.
[0037] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A power bank with automatic safety protection, comprising a power bank rear shell assembly (100), characterized in that: The front end of the power bank rear shell assembly (100) is provided with a power bank front shell (400), and a stabilizing frame assembly (200) is fixedly arranged inside the power bank rear shell assembly (100). A battery stabilizing frame assembly (300) for installing the power bank battery (500) is arranged inside the stabilizing frame assembly (200). The stabilizing frame assembly (200) and the battery stabilizing frame assembly (300) form an anti-collision and anti-shake safety protection frame structure for the power bank battery (500) inside the power bank rear shell assembly (100), and an induction self-spraying safety protection and fire extinguishing structure is formed inside the power bank rear shell assembly (100). The power bank rear shell assembly (100) includes a rear shell (101). A support arm (102) is fixedly arranged on one side inside the rear shell (101), and a temperature sensor (103) is fixedly arranged at the top inside the rear shell (101). A seat tube (106) is fixedly arranged at the bottom inside the rear shell (101). A straight tube (108) and a ball tube (107) are fixedly arranged at the top of the seat tube (106). A cylinder (104) is fixedly arranged on the other side inside the rear shell (101) through a side rod (105). A toothed moving tooth arm (110) is fixedly arranged at the bottom of the cylinder (104). A toothed moving shaft rod (112) is rotatably arranged on the ball tube (107) through a bearing. A ball head (109) and a toothed moving gear (111) are respectively fixedly arranged at both ends of the toothed moving shaft rod (112). A through groove (113) is formed on the ball head (109). The stabilizing frame assembly (200) includes a stabilizing outer frame (201), and a stabilizing inner frame (203) is rotatably arranged inside the stabilizing outer frame (201) through a bearing and a first shaft rod (202). The battery stabilizing frame assembly (300) includes a stabilizing ball (301). A gravity weight (302) is fixedly arranged at the bottom of the stabilizing ball (301), and a central disc (313) is fixedly arranged at the top of the stabilizing ball (301). A second shaft rod (303) is fixedly arranged in the middle of the stabilizing ball (301). Four sliding arm seats (312) are arranged on the central disc (313). An arc-shaped sliding rod (305) is fixedly arranged between two of the sliding arm seats (312). A top spring (304) is sleeved on the arc-shaped sliding rod (305). A retracting disc (308) is rotatably arranged on the central disc (313) through a bearing and a shaft rod. An arc-shaped sliding groove (307) and a perforated bottom plate (306) are arranged on the retracting disc (308). An L-shaped fixing arm (311) is slidably arranged inside the sliding arm seat (312). A retracting arm (309) and a U-shaped mounting bracket (310) are respectively fixedly arranged at both ends of the L-shaped fixing arm (311). The folding disc (308) rotates above the central disc (313), the perforated bottom plate (306) rotates outside the arc-shaped slide bar (305), and both ends of the pressing spring (304) abut against the sliding arm seat (312) and the perforated bottom plate (306) respectively. Through the pushing of the pressing spring (304), the folding disc (308) is in a clockwise rotation structure on the central disc (313).
2. The power bank with automatic safety protection according to claim 1, characterized in that: The L-shaped fixed arm (311) reciprocally slides within the sliding arm seat (312), the folding arm (309) penetrates and projects from the top of the sliding arm seat (312), and the folding arm (309) is inserted into the arc-shaped chute (307).
3. The power bank with automatic safety protection according to claim 1, wherein: Through the pushing of the pressing spring (304), the arc-shaped chute (307) on the folding disc (308) forms an inward sliding folding force on the L-shaped fixed arm (311) through the folding arm (309), and an installation arm structure for installing the power bank battery (500) is formed between the four U-shaped mounting brackets (310).
4. The power bank with automatic safety protection according to claim 1, wherein: The stabilizing ball (301) is rotationally connected to the stable inner frame (203) through the second shaft rod (303) and a bearing, and the stabilizing ball (301) rotates within the stable inner frame (203). The outer wall of the stable outer frame (201) is fixedly connected to the support arm (102), and the second shaft rod (303) and the first shaft rod (202) form a cross-shaped shaft arm structure on the same horizontal plane.
5. The power bank with automatic safety protection according to claim 1, characterized in that: Through the gravitational force of the gravity weight (302) and the cross-shaped shaft arm structure formed between the second shaft rod (303) and the first shaft rod (202), the four U-shaped mounting brackets (310) form an installation arm structure for the power bank battery (500) that prevents shaking and impact above the stabilizing ball (301).
6. The power bank with automatic safety protection according to claim 1, characterized in that: The ball head (109) rotates within the ball tube (107), the toothed moving tooth arm (110) meshes with the toothed moving gear (111), the seat tube (106) is filled with high-pressure fire extinguishing powder, and when the through slot (113) is aligned with the straight tube (108), the high-pressure fire extinguishing powder in the seat tube (106) sprays out rapidly. When the through slot (113) is not aligned with the straight tube (108), the high-pressure fire extinguishing powder in the seat tube (106) is sealed within the seat tube (106).
7. A power bank with automatic safety protection according to claim 1, characterized in that: The front shell (400) of the power bank is provided with a control module and a charging port, and the temperature sensor (103), the cylinder (104), and the control module are electrically connected.
8. The power bank with automatic safety protection according to claim 1, characterized in that: The inner wall of the U-shaped mounting bracket (310) is provided with a flexible rubber pad for contact protection of the power bank battery (500).
Citation Information
Patent Citations
Connecting shell for charging of mobile phone power bank
CN214380197U
Portable power bank with voice control function
CN216252206U