Power storage batteries and electrical equipment

Abstract

The present application provides a power energy storage battery and electrical equipment, which relate to the field of new energy vehicles. The battery body of the power energy storage battery is installed in a protective frame, and multiple ventilation pipes are installed at the bottom of the battery body, and the air inlet ends are extended to the independent battery module inside the battery body, and the air outlet ends are connected to the gas collecting pipe; the gas collecting pipe is installed at the bottom of the battery body, and the air outlet end of the gas collecting pipe is connected to the gas supply pipe; the air inlet end of the control pipe is connected to the gas supply pipe, and the air outlet end is connected to the adsorption box fluid, and a first control component is installed in the control pipe, and the first control component controls the control pipe to switch from a closed state to an open state through a pressure difference; the adsorption box is filled with adsorption materials, and the adsorption box is installed with an exhaust pipe. The power energy storage battery provided by the present application solves the technical problem that the flammable and harmful gases inside the battery cannot be discharged in time when the power battery is thermally runaway in the prior art.

Description

Technical Field

[0001] The present application relates to the field of new energy vehicles, and more specifically, to a power storage battery and electrical equipment. Background Art

[0002] As one of the core components of electric vehicles, power batteries are the energy center of electric vehicles and play an irreplaceable role in the whole vehicle. When lithium-ion batteries are in thermal runaway, the negative electrode SEI film will decompose, the positive electrode active material will decompose, and the electrolyte will oxidize and decompose due to high temperature. Therefore, a large amount of gas will be generated, causing the internal gas of the lithium-ion battery to expand and the pressure to rise rapidly, which will cause the battery to explode and burn. In this process, a large amount of high-temperature, flammable and toxic gases will be released from the battery, mainly including carbon dioxide, carbon monoxide, hydrogen, ethylene, methane, ethane and propylene. During the thermal runaway process, the gas released by the battery is very hot, and most of the flammable gases will react with oxygen to produce a large amount of carbon monoxide and carbon dioxide. When the passengers are in the car and cannot open the door, it will cause serious carbon monoxide poisoning. Therefore, when the power battery is in thermal runaway, the flammable and harmful gases inside the battery need to be discharged in time to avoid these gases from poisoning people or prevent the gas from exploding and causing a larger accident. Summary of the invention

[0003] The purpose of the embodiments of the present application is to provide a power energy storage battery and electrical equipment to alleviate the technical problem in the prior art that the flammable and harmful gases inside the battery cannot be discharged in time when the power battery has thermal runaway.

[0004] In order to solve the above technical problems, the technical solution provided by the present invention is:

[0005] In a first aspect, the power energy storage battery provided by the present invention comprises a battery body, a protective frame, a gas collecting pipe, a gas transmission pipe, a control pipe, an adsorption box and a plurality of ventilation pipes;

[0006] The battery body is installed in the protective frame, and the plurality of vent pipes are installed at the bottom of the battery body, and the air inlet ends are extended to the independent battery module inside the battery body, and the air outlet ends are connected to the air collecting pipe;

[0007] The gas collecting pipe is installed at the bottom of the battery body, and the gas outlet end of the gas collecting pipe is connected to the gas delivery pipe;

[0008] The air inlet end of the control tube is connected to the air delivery pipe, and the air outlet end is in fluid communication with the adsorption box. A first control component is installed in the control tube, and the first control component controls the control tube to switch from a closed state to an open state through a pressure difference.

[0009] The adsorption box is filled with adsorption material, and the adsorption box is equipped with an exhaust pipe.

[0010] Furthermore, the first control assembly includes a fixed valve, a movable valve and a first elastic member;

[0011] The outer wall of the fixed valve is connected to the inner wall of the control tube and has a vent hole;

[0012] The first elastic member is located on a side of the fixed valve away from the gas pipe, and one end of the first elastic member is connected to the control pipe, and the other end is connected to the movable valve;

[0013] When the control tube is in the closed state, the movable valve abuts against the fixed valve; when the control tube is in the open state, the movable valve is separated from the fixed valve.

[0014] Furthermore, the first control assembly further comprises a fixing frame, the fixing frame is installed in the control tube, and one end of the first elastic member facing away from the active valve is installed on the fixing frame.

[0015] Furthermore, a positioning slide bar is installed on the side wall of the movable valve, and a slide groove is correspondingly provided on the inner wall of the control tube, and the positioning slide bar is slidably matched with the slide groove.

[0016] Furthermore, the first control assembly further comprises a stopper, a second elastic member and a positioning block, and a positioning groove is provided on the bottom wall of the end of the slideway away from the gas delivery pipe;

[0017] The stopper is installed on the outer wall of the movable valve close to the first elastic member, one end of the second elastic member is connected to the stopper, and the other end is connected to the positioning block, and the axis of the second elastic member is perpendicular to the axis of the control tube;

[0018] When the control tube is in the open state, the locking block is engaged with the locking slot.

[0019] Furthermore, the first control component includes a diaphragm, and the outer wall of the diaphragm is connected to the inner wall of the control tube.

[0020] Furthermore, the exhaust pipe is installed with a second control component, the second control component controls the opening and closing of the exhaust pipe through a pressure difference, and the second control component is linked with the first control component.

[0021] Furthermore, the second control assembly includes a suspension cover and a third elastic member;

[0022] The hanging cover is located at the outlet end of the exhaust pipe, and one end of the third elastic member is connected to the side wall of the protective frame, and the other end is connected to the hanging cover;

[0023] When the control pipe is in the closed state, the hanging cover is in contact with the exhaust pipe; when the control pipe is in the open state, the hanging cover is separated from the exhaust pipe.

[0024] Furthermore, when the control pipe is in the closed state, the axis of the exhaust pipe is horizontally arranged; when the control pipe is in the open state, the axis of the exhaust pipe is vertically arranged, and the air outlet end of the exhaust pipe faces the ground.

[0025] Furthermore, the power energy storage battery also includes a fixing tube, a bellows and a steering tube;

[0026] The fixed pipe is communicated with the control pipe, two ends of the bellows are respectively communicated with the fixed pipe and the steering pipe, and the air outlet end of the steering pipe is communicated with the adsorption box.

[0027] Furthermore, the power energy storage battery includes a third control component, and the third control component controls the rotation of the steering tube.

[0028] Furthermore, the third control assembly includes a first rotating plate mounted on the side wall of the fixed tube, and a second rotating plate mounted on the steering tube;

[0029] One end of the first rotating plate facing away from the fixed tube overlaps and is rotatably connected with one end of the second rotating plate facing away from the steering tube, and the axis of the rotating shaft is perpendicular to the axis of the fixed tube.

[0030] Furthermore, the first rotating plate and the second rotating plate are rotatably connected via a central rotating rod, and the axis of the central rotating rod is perpendicular to the axis of the fixed tube;

[0031] The central rotating rod is installed on the first rotating plate or the second rotating plate, and is correspondingly inserted into the second rotating plate or the first rotating plate.

[0032] Furthermore, the third control assembly further comprises a positioning ring and a fourth elastic member, wherein the positioning ring is installed at the intersection of the first rotating plate and the second rotating plate, and the fourth elastic member is installed on the central rotating rod, and the axis of the fourth elastic member is perpendicular to the axes of the central rotating rod and the fixed tube;

[0033] When the control tube is in the open state, two ends of the fourth elastic member are clamped in the positioning slots of the positioning ring.

[0034] Furthermore, an inner shell is installed in the adsorption box, the adsorption material is filled in the inner shell, and a vacuum state is formed between the inner shell and the inner wall of the adsorption box.

[0035] Furthermore, a support member is installed between the inner shell and the inner wall of the adsorption box.

[0036] Furthermore, the adsorption box also includes a mesh tube, one end of which is connected to the control tube fluid, and the other end of which is connected to the exhaust pipe, and the mesh tube is buried in the adsorption material.

[0037] Furthermore, two of the network pipes and two of the exhaust pipes are provided, and the two network pipes are both connected to the control pipe fluid and are correspondingly connected to the two exhaust pipes.

[0038] In a second aspect, the electrical equipment provided by the present invention includes a power storage battery as described in any one of the above items.

[0039] Based on the above technical solutions, the technical effects that can be achieved by the present invention are analyzed as follows:

[0040] The power energy storage battery provided by the present invention comprises a battery body, a protective frame, an air collecting pipe, an air supply pipe, a control pipe, an adsorption box and a plurality of ventilation pipes; the battery body is installed in the protective frame, the plurality of ventilation pipes are installed at the bottom of the battery body, and the air inlet ends are extended to the independent battery module inside the battery body, and the air outlet ends are connected with the air collecting pipe; the air collecting pipe is installed at the bottom of the battery body, and the air outlet end of the air collecting pipe is connected with the air supply pipe; the air inlet end of the control pipe is connected with the air supply pipe, and the air outlet end is connected with the adsorption box fluid, and a first control component is installed in the control pipe, and the first control component controls the control pipe to switch from a closed state to an open state through a pressure difference; the adsorption box is filled with adsorption material, and the adsorption box is installed with an exhaust pipe.

[0041] The battery body is installed in the protective frame, and the protective frame provides support and fixation for the battery body, etc. The air inlet ends of multiple ventilation pipes extend into each independent battery module inside the battery body, and are used to discharge the gas generated when the battery module is thermally runaway; the air outlet ends of multiple ventilation pipes are installed on the same gas collecting pipe, and the gas collecting pipe is fixed at the bottom of the battery body. The gas collecting pipe is used to converge the gas in multiple ventilation pipes. The air inlet end of the control pipe is connected to the gas collecting pipe through the gas supply pipe, and the air outlet end is connected to the adsorption box, and a first control component is installed inside; when the control pipe is in a closed state, the gas collecting pipe is not connected to the adsorption box; when the control pipe is in an open state, the gas collecting pipe is connected to the adsorption box. When the battery modules inside the battery body thermally run away and produce a large amount of flammable gas, the gas will flow into the adsorption box after passing through the ventilation pipe, gas collecting pipe, gas transmission pipe and control pipe in sequence under the action of internal air pressure. The gas will be adsorbed by the adsorption material in the adsorption box, and the hydrocarbon components in the flammable gas will be captured and gathered, so that the hydrocarbons are separated from the exhaust gas, and the adsorbed and screened gas will be discharged into the atmosphere through the exhaust pipe. At this time, the discharged gas has greatly reduced its flammability and toxicity, effectively preventing the risk of battery explosion and poisoning personnel. The first control component uses the pressure difference between the gas collecting pipe and the adsorption box to control the opening and closing of the control pipe, so as to achieve timely discharge of flammable and harmful gases inside the battery body without relying on the power system, avoiding poisoning of personnel by flammable and harmful gases, or preventing gas explosion from causing greater accidents. It is worth noting that the power storage battery does not rely on the power system to discharge the internal gas in time when thermal runaway occurs, thus avoiding the potential safety hazards of continuing to use the power system; moreover, the power storage battery has one-way exhaust, thus avoiding the problem of gas entering the battery body under normal circumstances, and also avoiding the problem of oxygen entering the battery body during exhaust. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0043] Figure 1 A schematic diagram of the structure of a power energy storage battery provided in an embodiment of the present application;

[0044] Figure 2 Schematic diagram of the structure of the power storage battery provided in the embodiment of the present application Figure 1 (Hidden protective frame);

[0045] Figure 3 Schematic diagram of the structure of the power storage battery provided in the embodiment of the present application Figure 2 (Hidden protective frame);

[0046] Figure 4 A schematic diagram of the structure of a control tube in a power energy storage battery provided in an embodiment of the present application;

[0047] Figure 5 for Figure 4 A partial enlarged view of the middle A;

[0048] Figure 6 Schematic diagram of the internal structure of the control tube in the power energy storage battery provided in the embodiment of the present application Figure 1 ;

[0049] Figure 7 Schematic diagram of the internal structure of the control tube in the power energy storage battery provided in the embodiment of the present application Figure 2 ;

[0050] Figure 8 A schematic diagram of the structure of an active valve in a power energy storage battery provided in an embodiment of the present application;

[0051] Fig. 9 A schematic diagram of the internal structure of an adsorption box in a power energy storage battery provided in an embodiment of the present application.

[0052] icon:

[0053] 1-battery body; 2-protective frame; 3-ventilation pipe; 4-gas collecting pipe; 5-gas delivery pipe; 6-control pipe; 601-slide; 7-fixed pipe; 8-metal bellows; 9-steering pipe; 10-adsorption box; 1001-adsorption material; 11-exhaust pipe; 12-first rotating plate; 13-second rotating plate; 14-center rotating rod; 15-positioning ring; 1501-positioning slot; 16-fourth elastic member; 17-fixed valve; 18-fixed frame; 19-first elastic member; 20-movable valve; 21-positioning slide rod; 22-stop block; 23-second elastic member; 24-positioning block; 25-inner shell; 26-support member; 27-net tube; 28-third elastic member; 29-suspension cover. DETAILED DESCRIPTION

[0054] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0055] In the description of this application, it should be noted that the terms "inside", "outside", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the application is usually placed when in use, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0056] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0057] Embodiment 1

[0058] See also Figures 1 to 9 The power energy storage battery provided by the embodiment of the present invention includes a battery body 1, a protective frame 2, an air collecting pipe 4, an air supply pipe 5, a control pipe 6, an adsorption box 10 and a plurality of ventilation pipes 3; the battery body 1 is installed in the protective frame 2, and the plurality of ventilation pipes 3 are all installed at the bottom of the battery body 1, and the air inlet ends are all extended to the independent battery module inside the battery body 1, and the air outlet ends are all connected with the air collecting pipe 4; the air collecting pipe 4 is installed at the bottom of the battery body 1, and the air outlet end of the air collecting pipe 4 is connected with the air supply pipe 5; the air inlet end of the control pipe 6 is connected with the air supply pipe 5, and the air outlet end is connected with the adsorption box 10 fluid, and a first control component is installed in the control pipe 6, and the first control component controls the control pipe 6 to switch from a closed state to an open state through a pressure difference; the adsorption box 10 is filled with adsorption material 1001, and the adsorption box 10 is installed with an exhaust pipe 11.

[0059] Specifically, see Figure 2 , multiple ventilation pipes 3 are arranged at intervals along the length direction of the battery body 1, and the axis of a single ventilation pipe 3 is arranged along the width direction of the battery body 1. The axis of the gas collecting pipe 4 is arranged along the length direction of the battery body 1, and is connected to multiple ventilation pipes 3 at the same time. The axis of the gas supply pipe 5 is L-shaped, one end of the gas supply pipe 5 is connected to the gas collecting pipe 4, and the other end is connected to the control pipe 6. The function of the gas supply pipe 5 is to connect the gas collecting pipe 4 and the control pipe 6, and it is arranged in an L-shape to realize the change of direction of the pipeline, thereby realizing that the control pipe 6 is located at the bottom of the battery body 1. For further information, see Figure 1The protective frame 2 includes a metal guard plate and a bracket, the metal guard plate covers the bracket, and the battery body 1 is located between the metal guard plate and the bracket; the bracket is divided into two parts, the battery body 1 is installed on the left, the metal guard plate is located above the battery body 1, and the left side of the bracket has a bottom plate, the bottom plate supports the gas pipe 5 and the control pipe 6, etc.; the adsorption box 10 is installed on the right side, and the lower right side of the bracket is hollowed out; when the exhaust pipe 11 of the adsorption box 10 is not exhausted, the exhaust pipe 11 is blocked by the side wall of the bracket; when the exhaust pipe 11 of the adsorption box 10 is exhausted, the adsorption box 10 is rotated downward so that the exhaust end of the exhaust pipe 11 faces the ground to avoid exhausting to the surroundings and posing a safety hazard.

[0060] The battery body 1 is installed in the protective frame 2, and the protective frame 2 provides support and fixation for the battery body 1, etc. The air inlet ends of the multiple ventilation pipes 3 extend into each independent battery module inside the battery body 1, and are used to discharge the gas generated when the battery module is thermally runaway; the air outlet ends of the multiple ventilation pipes 3 are installed on the same gas collecting pipe 4, and the gas collecting pipe 4 is fixed at the bottom of the battery body 1. The gas collecting pipe 4 is used to converge the gas in the multiple ventilation pipes 3. The air inlet end of the control pipe 6 is connected to the gas collecting pipe 4 through the gas supply pipe 5, and the air outlet end is connected to the adsorption box 10, and a first control component is installed inside; when the control pipe 6 is in a closed state, the gas collecting pipe 4 is not connected to the adsorption box 10; when the control pipe 6 is in an open state, the gas collecting pipe 4 is connected to the adsorption box 10. When the battery modules inside the battery body 1 are thermally runaway and produce a large amount of combustible gas, the gas will flow into the adsorption box 10 through the ventilation pipe 3, the gas collecting pipe 4, the gas delivery pipe 5 and the control pipe 6 in sequence under the action of the internal air pressure, and the gas will be adsorbed by the adsorption material 1001 in the adsorption box 10, and the hydrocarbon components in the combustible gas will be captured and gathered, so that the hydrocarbons are separated from the exhaust gas, and the adsorbed and screened gas will be discharged into the atmosphere through the exhaust pipe 11. At this time, the discharged gas has greatly reduced the flammability and toxicity, effectively preventing the risk of battery explosion and poisoning personnel. The first control component uses the pressure difference between the gas collecting pipe 4 and the adsorption box 10 to control the opening and closing of the control pipe 6, so as to realize the timely discharge of the combustible and harmful gas inside the battery body 1 without relying on the power system, so as to avoid the combustible and harmful gas from poisoning personnel, or prevent the gas from exploding and causing a greater accident. It is worth noting that the power storage battery does not rely on the power system to discharge the internal gas in time when thermal runaway occurs, thus avoiding the potential safety hazards of continuing to use the power system; and the power storage battery has one-way exhaust, thus avoiding the problem of gas entering the battery body 1 under normal conditions, and also avoiding the problem of oxygen entering the battery body 1 during exhaust.

[0061] The following is a detailed description of the structure and shape of the power storage battery:

[0062] In the optional solution of the embodiment of the present invention, see Figure 6 and Figure 7The first control component includes a fixed valve 17, a movable valve 20 and a first elastic member 19; the outer wall of the fixed valve 17 is connected to the inner wall of the control tube 6 and has a vent hole; the first elastic member 19 is located on the side of the fixed valve 17 away from the air supply pipe 5, and one end is connected to the control tube 6, and the other end is connected to the movable valve 20; when the control tube 6 is in a closed state, the movable valve 20 abuts against the fixed valve 17; when the control tube 6 is in an open state, the movable valve 20 is separated from the fixed valve 17.

[0063] Specifically, a ring-shaped fixed valve 17 is installed inside the air inlet end of the control tube 6, and the outer wall of the fixed valve 17 is welded and sealed with the inner wall of the control tube 6; a first elastic member 19 is installed inside the air outlet end of the control tube 6, and the first elastic member 19 is connected to the movable valve 20; the movable valve 20 is adapted to the fixed valve 17, and the outer circle of the movable valve 20 is much smaller than the inner diameter of the control tube 6; the first elastic member 19 is set as a preload spring rod. Under normal conditions, that is, when the control tube 6 is in a closed state, the movable valve 20 closes the fixed valve 17 under the elastic action of the preload spring rod, so that the control tube 6 remains closed, thereby disconnecting the entire pipeline; when gas is generated inside the battery body 1, the gas gradually gathers to cause the gas pressure to soar, until the gas pushes the movable valve 20 open, so that the fixed valve 17 is connected, so that the gas is discharged, and the one-way control of the gas is realized, preventing the influx of external oxygen-containing air from causing the combustible gas to react with oxygen, generating a large amount of carbon monoxide and carbon dioxide, and even causing further oxidation and decomposition of the battery.

[0064] The opening and closing of the control tube 6 is controlled by the cooperation of the fixed valve 17, the movable valve 20 and the first elastic member 19, and no electricity is required during the control process; and the one-way exhaust of the control tube 6 is achieved to prevent external oxygen from entering the battery body 1.

[0065] In an optional solution of the embodiment of the present invention, the first control assembly further includes a fixing frame 18 , the fixing frame 18 is installed in the control tube 6 , and one end of the first elastic member 19 facing away from the active valve 20 is installed on the fixing frame 18 .

[0066] Specifically, see Figure 7 The fixing frame 18 includes a fixing column and a plurality of fixing bent rods arranged at intervals along the circumference of the control tube 6, one end face of the fixing bent rod is connected to the outer wall of the fixing column, and the side wall is welded to the inner wall of the control tube 6 or connected by fasteners such as screws; an exhaust passage for exhaust is formed between two adjacent fixing bent rods; and the first elastic member 19 is connected to the fixing column. Of course, the inner wall of the control tube 6 is provided with a mounting protrusion, and the mounting protrusion is provided with an exhaust hole. The solution that the first elastic member 19 is installed on the mounting protrusion should also be within the protection scope of the embodiment of the present invention.

[0067] The fixing frame 18 enables the first elastic member 19 to be installed on the control tube 6 .

[0068] In an optional solution of the embodiment of the present invention, a positioning slide bar 21 is installed on the side wall of the movable valve 20 , and a slide groove 601 is correspondingly provided on the inner wall of the control tube 6 , and the positioning slide bar 21 and the slide groove 601 are slidably matched.

[0069] Specifically, see Figure 7 The inner wall of the control tube 6 is recessed outward to form a slide groove 601, and the slide groove 601 extends along the axial direction of the control tube 6. Preferably, two positioning slide bars 21 and two slide grooves 601 are provided, and the two positioning slide bars 21 are respectively provided on both sides of the active valve 20; the two slide grooves 601 are slidably matched with the two positioning slide bars 21 in a one-to-one correspondence.

[0070] The positioning slide bar 21 is slidably loaded in the slide groove 601 , and plays a guiding and restraining role on the movement of the active valve 20 .

[0071] In the optional solution of the embodiment of the present invention, see Figure 7 and Figure 8 The first control component also includes a block 22, a second elastic member 23 and a blocking block 24. A blocking groove is provided on the bottom wall of the slide groove 601 away from the end of the gas delivery pipe 5; a block 22 is installed on the outer wall of the movable valve 20 close to the first elastic member 19, one end of the second elastic member 23 is connected to the block 22, and the other end is connected to the blocking block 24, and the axis of the second elastic member 23 is perpendicular to the axis of the control tube 6; when the control tube 6 is in the open state, the blocking block 24 is engaged with the blocking groove.

[0072] Specifically, the second elastic member 23 is configured as a locking spring rod. Two blocks 22 are installed on the back side of the active valve 20, and a locking spring rod is installed on one side of the block 22. A locking block 24 is installed at the telescopic end of the locking spring rod, and the locking block 24 is also slidably loaded in the slide 601; the bottom wall of the slide 601 is provided with a locking groove. When the active valve 20 is pushed open, the positioning slide 21 and the locking block 24 both slide in the slide 601 until the locking block 24 is locked into the locking groove under the elastic action of the locking spring rod. At this time, the locking block 24 locks the active valve 20, so that the active valve 20 remains in the current position, thereby maintaining the connection of the control pipe 6, so that the gas can be continuously discharged. The slide 601 with a locking groove is L-shaped as a whole.

[0073] With the cooperation of the second elastic member 23 , the locking block 24 and the locking groove, the locking block 24 can fix the movable valve 20 , thereby keeping the control pipe 6 connected and allowing the gas to be continuously discharged.

[0074] As another embodiment, the first control component includes a diaphragm, and the outer wall of the diaphragm is connected to the inner wall of the control tube 6 .

[0075] The diaphragm has a certain elasticity, and the center of the diaphragm can move elastically when the pressure difference on both sides of the diaphragm is within a certain range; however, when the pressure difference on both sides of the diaphragm is too large, that is, when gas is generated inside the battery body 1, the gas gradually accumulates to cause the gas pressure to soar, and then breaks through the diaphragm, thereby discharging the gas.

[0076] In an optional solution of the embodiment of the present invention, the exhaust pipe 11 is installed with a second control component, the second control component controls the opening and closing of the exhaust pipe 11 through the pressure difference, and the second control component is linked with the first control component.

[0077] Specifically, the second control component is linked with the first control component in that when the first control component controls the control pipe 6 to open, the second control component controls the exhaust pipe 11 to open.

[0078] Under normal conditions, the second control component controls the exhaust pipe 11 to be closed, achieving double closure to maintain the airtightness of the interior of the battery body 1; when the combustible gas flows into the adsorption box 10 for adsorption, the second control component opens the exhaust pipe 11 for exhaust under the action of the pressure difference.

[0079] In the optional solution of the embodiment of the present invention, see Figure 1 The second control component includes a hanging cover 29 and a third elastic member 28; the hanging cover 29 is located at the outlet end of the exhaust pipe 11, and one end of the third elastic member 28 is connected to the side wall of the protective frame 2, and the other end is connected to the hanging cover 29; when the control pipe 6 is in a closed state, the hanging cover 29 abuts against the exhaust pipe 11; when the control pipe 6 is in an open state, the hanging cover 29 is separated from the exhaust pipe 11.

[0080] Specifically, the third elastic member 28 is configured as a suspension spring rod, and the telescopic end of the suspension spring rod is installed with a suspension cover 29 that is compatible with the exhaust pipe 11. Under normal circumstances, the suspension cover 29 is buckled on the exhaust end of the exhaust pipe 11, which can not only suspend the exhaust pipe 11 and the adsorption box 10 horizontally, but also block the exhaust pipe 11 to achieve double closure and maintain the airtightness inside the battery body 1. When the combustible gas flows into the adsorption box 10 for adsorption, the gathered gas will push open the suspension covers 29 on both sides, so that the suspension covers 29 are separated from the exhaust pipe 11, and the adsorption box 10 is no longer suspended by the suspension cover 29 and slides downward, causing the bellows to bend. The steering tube 9, the adsorption box 10, and the exhaust pipe 11 finally remain in a vertical state, so that the gas is always sprayed toward the ground, avoiding the gas from spraying directly toward the surroundings, reducing the harm caused by the gas explosion.

[0081] The exhaust pipe 11 is blocked or opened with the cooperation of the third elastic member 28 and the suspension cover 29 .

[0082] In the optional solution of the embodiment of the present invention, see Figure 1When the control pipe 6 is in a closed state, the axis of the exhaust pipe 11 is horizontally arranged; when the control pipe 6 is in an open state, the axis of the exhaust pipe 11 is vertically arranged, and the outlet end of the exhaust pipe 11 faces the ground.

[0083] Under normal conditions, that is, when the control tube 6 is in a closed state, the suspension cover 29 is buckled onto the outlet end of the exhaust pipe 11, which not only allows the exhaust pipe 11 and the adsorption box 10 to be suspended horizontally, but also allows the exhaust pipe 11 to be sealed to achieve double closure, thereby maintaining the airtightness of the interior of the battery body 1; when the combustible gas flows into the adsorption box 10 for adsorption, that is, when the control tube 6 is in an open state, the gathered gas will push open the suspension covers 29 on both sides, causing the suspension covers 29 to separate from the exhaust pipe 11, and the adsorption box 10 is no longer suspended by the suspension cover 29 and slides downward, causing the bellows to bend, and the steering tube 9, the adsorption box 10, and the exhaust pipe 11 finally remain in a vertical state, so that the gas is always sprayed toward the ground, avoiding the gas from spraying directly toward the surroundings, thereby reducing the harm caused by gas explosion.

[0084] In the optional solution of the embodiment of the present invention, see Figure 3 and Figure 4 The power energy storage battery also includes a fixed tube 7, a bellows and a steering tube 9; the fixed tube 7 is connected to the control tube 6, the two ends of the bellows are respectively connected to the fixed tube 7 and the steering tube 9, and the air outlet end of the steering tube 9 is connected to the adsorption box 10.

[0085] Specifically, the bellows is set as a metal bellows 8. The metal bellows 8 is a pipe with a regular wave-like appearance. Commonly used metal bellows 8 are carbon steel, stainless steel, steel-lined plastic, aluminum, etc. It is mainly used for non-concentric axial transmission with a very small bending radius, or irregular turning, expansion, or absorbing thermal deformation of the pipeline, or for connecting pipelines to pipelines or connecting pipelines to equipment in occasions where it is not convenient to install with fixed elbows.

[0086] The bellows enables the circuit to be turned.

[0087] In an optional solution of the embodiment of the present invention, the power energy storage battery includes a third control component, and the third control component controls the rotation of the steering tube 9.

[0088] The third control assembly is connected to the fixed tube 7 and the steering tube 9 and is used to control the rotation direction of the steering tube 9 and improve the rotation stability of the steering tube 9 .

[0089] In the optional solution of the embodiment of the present invention, see Figure 4 The third control component includes a first rotating plate 12 installed on the side wall of the fixed tube 7, and a second rotating plate 13 installed on the steering tube 9; the end of the first rotating plate 12 facing away from the fixed tube 7 overlaps and is rotatably connected with the end of the second rotating plate 13 facing away from the steering tube 9, and the axis of the rotating shaft is perpendicular to the axis of the fixed tube 7.

[0090] Specifically, two third control assemblies are provided, and the two third control assemblies are installed on both sides of the fixed tube 7. In this embodiment, the first rotating plate 12 is connected to the side wall of the fixed tube 7 by fasteners such as screws, and similarly, the second rotating plate 13 is connected to the steering tube 9 by fasteners such as screws.

[0091] The first rotating plate 12 is rotatably connected to the second rotating plate 13. When the suspension cover 29 is separated from the exhaust pipe 11, the second rotating plate 13 rotates around the rotation axis rotatably connected to the first rotating plate 12, thereby moving the steering tube 9 along a set rotation path; and the rotation angle of the bellows can be controlled to avoid severe bending of the bellows.

[0092] In an optional scheme of an embodiment of the present invention, the first rotating plate 12 and the second rotating plate 13 are rotatably connected through a central rotating rod 14, and the axis of the central rotating rod 14 is perpendicular to the axis of the fixed tube 7; the central rotating rod 14 is installed on the first rotating plate 12 or the second rotating plate 13, and is correspondingly inserted into the second rotating plate 13 or the first rotating plate 12.

[0093] Specifically, in this embodiment, the first rotating plate 12 is fixedly mounted with a central rotating rod 14, and is hinged to the second rotating plate 13 through the central rotating rod 14. Furthermore, the diameter of the steering tube 9 gradually decreases from the end close to the bellows to the end away from the bellows, thereby increasing the flow rate of the fluid in the steering tube 9.

[0094] The central rotating rod 14 is fixedly connected to the first rotating plate 12 . When the hanging cover 29 releases the exhaust pipe 11 , the steering pipe 9 , the adsorption box 10 and the exhaust pipe 11 will rotate downward along the axis of the central rotating rod 14 .

[0095] In the optional solution of the embodiment of the present invention, see Figure 5 The third control component also includes a positioning ring 15 and a fourth elastic member 16. The positioning ring 15 is installed at the intersection of the first rotating plate 12 and the second rotating plate 13. The fourth elastic member 16 is installed on the central rotating rod 14, and the axis of the fourth elastic member 16 is perpendicular to the axis of the central rotating rod 14 and the fixed tube 7. When the control tube 6 is in the open state, both ends of the fourth elastic member 16 are clamped in the positioning slot 1501 of the positioning ring 15.

[0096] Specifically, a first rotating plate 12 is installed on both sides of the fixed tube 7, and a second rotating plate 13 is installed on both sides of the steering tube 9. The first rotating plate 12 and the second rotating plate 13 on the same side overlap with each other. A center rotating rod 14 is fixedly installed at one end of the first rotating plate 12 and is hinged through the center rotating rod 14. The center rotating rod 14 maintains a fixed connection with the first rotating plate 12. When the hanging cover 29 releases the exhaust pipe 11, the steering tube 9, the adsorption box 10 and the exhaust pipe 11 will rotate downward along the axis of the center rotating rod 14. After rotating ninety degrees, the fourth elastic member 16 that rotates with the center rotating rod 14 will align with the positioning slots 1501 on both sides of the positioning ring 15. The fourth elastic member 16 is a double-headed spring rod, and its two telescopic ends will bounce into the positioning slots 1501 to clamp the center rotating rod 14, thereby keeping the adsorption box 10 and the exhaust pipe 11 in a vertical downward state, effectively preventing the adsorption box 10 and the exhaust pipe 11 from swaying and shaking under the action of air pressure after the gas is discharged through the exhaust pipe 11.

[0097] The adsorption box 10 is fixed under the action of the fourth elastic member 16 and the positioning ring 15 to prevent the adsorption box 10 from swaying under the action of air pressure, causing the exhaust pipe 11 to face the periphery, thereby posing a potential safety hazard.

[0098] In an optional solution of the embodiment of the present invention, an inner shell 25 is installed in the adsorption box 10, the adsorption material 1001 is filled in the inner shell 25, and a vacuum state is formed between the inner shell 25 and the inner wall of the adsorption box 10.

[0099] Specifically, see Fig. 9 The adsorption box 10 is made of flame retardant material, and an inner shell 25 is arranged inside the adsorption box 10, and the adsorption material 1001 is loaded in the inner shell 25. The adsorption material 1001 mainly includes one or more commonly used adsorbents such as activated carbon, activated alumina, silica gel, molecular sieve, etc. The porous structure of the adsorbent is used to capture and aggregate hydrocarbon components in the combustible gas, so that the hydrocarbons are separated from the exhaust gas, and the adsorbed and screened gas is discharged into the atmosphere through the exhaust pipe 11. At this time, the discharged gas has greatly reduced the flammability and toxicity, effectively preventing the risk of battery explosion and poisoning personnel.

[0100] There is a vacuum state between the inner shell 25 and the inner wall of the adsorption box 10 , which improves the isolation effect of the adsorption box 10 .

[0101] In an optional solution of the embodiment of the present invention, a support member 26 is installed between the inner shell 25 and the inner wall of the adsorption box 10 .

[0102] Specifically, the inner shell 25 and the adsorption box 10 are supported by a plurality of evenly distributed support members 26 , and the support members 26 are made of heat insulating material.

[0103] The support member 26 can provide heat insulation for the adsorption material 1001 inside the inner shell 25 to prevent the adsorption material 1001 from burning.

[0104] In an optional solution of the embodiment of the present invention, the adsorption box 10 further includes a mesh tube 27 , one end of the mesh tube 27 is fluidly connected to the control tube 6 , and the other end is fluidly connected to the exhaust pipe 11 , and the mesh tube 27 is buried in the adsorption material 1001 .

[0105] Specifically, the network pipe 27 is buried in the adsorption material 1001 and has a folded and coiled structure, which can greatly increase the contact area between the gas and the adsorption material 1001 and enhance the adsorption effect. At the same time, it can avoid the gas from gathering in one place, resulting in excessive temperature rise of the local adsorption material 1001 and the risk of spontaneous combustion. The dispersed adsorption method can also reduce the vibration and noise generated by the gas surge during exhaust.

[0106] In an optional solution of the embodiment of the present invention, two network pipes 27 and two exhaust pipes 11 are provided, and the two network pipes 27 are both fluidically connected to the control pipe 6 and are correspondingly connected to the two exhaust pipes 11.

[0107] Specifically, one end of the steering pipe 9 extending to the adsorption box 10 is a three-way pipe structure, and a mesh pipe 27 is installed between the air outlet end of the steering pipe 9 and the air inlet end of the exhaust pipe 11.

[0108] Two mesh pipes 27 and two exhaust pipes 11 are provided, thereby increasing the exhaust speed.

[0109] In an optional solution of the embodiment of the present invention, a concentration sensor is installed in the gas collecting pipe 4, and the concentration sensor is connected to the alarm signal; when the gas concentration in the gas collecting pipe 4 exceeds the set concentration value but does not reach the level to drive the first control component to operate, an alarm prompt is issued.

[0110] The advantages of the power storage battery are described in detail below:

[0111] 1. The porous structure of the adsorbent in the adsorption box 10 is used to capture and aggregate hydrocarbon components in the combustible gas, so that the hydrocarbons are separated from the exhaust gas, and the adsorbed and screened gas is discharged into the atmosphere through the exhaust pipe 11. At this time, the discharged gas has greatly reduced flammability and toxicity, effectively preventing the risk of battery explosion and poisoning personnel;

[0112] 2. Under normal conditions, the movable valve 20 closes the fixed valve 17 under the elastic action of the preload spring rod, so that the control tube 6 remains closed, thereby disconnecting the entire ventilation circuit. When gas is generated inside the battery body 1, the gas gradually gathers to cause the gas pressure to soar, until the gas pushes the movable valve 20 open, so that the fixed valve 17 is connected, so that the gas is discharged, and the one-way control of gas transmission is realized, preventing the influx of external oxygen-containing air from causing the combustible gas to react with oxygen, generating a large amount of carbon monoxide and carbon dioxide, and even causing further oxidation and decomposition of the battery;

[0113] 3. Under normal conditions, the suspension cover 29 is buckled on the outlet end of the exhaust pipe 11, which can not only suspend the exhaust pipe 11 and the adsorption box 10 horizontally, but also block the exhaust pipe 11 to achieve double closure and maintain the airtightness inside the battery body 1. When the combustible gas flows into the adsorption box 10 for adsorption, the gathered gas will push open the suspension covers 29 on both sides, so that the suspension covers 29 are separated from the exhaust pipe 11. The adsorption box 10 is no longer suspended by the suspension cover 29 and slides downward, and the metal bellows 8 is bent. The steering tube 9, the adsorption box 10, and the exhaust pipe 11 finally remain in a vertical state, so that the gas is always sprayed toward the ground, avoiding the gas from spraying directly toward the surroundings, and reducing the harm caused by the gas explosion;

[0114] 4. When the hanging cover 29 releases the exhaust pipe 11, the adsorption box 10 rotates downward by 90 degrees, and the two telescopic ends of the positioning elastic member will spring into the positioning slot 1501 to clamp the central rotating rod 14, thereby keeping the adsorption box 10 and the exhaust pipe 11 in a vertical downward state, effectively preventing the adsorption box 10 and the exhaust pipe 11 from swinging and shaking under the action of air pressure after the gas is discharged through the exhaust pipe 11;

[0115] 5. The adsorption box 10 is made of flame-retardant material, and an inner shell 25 is provided inside the adsorption box 10. The adsorption material 1001 is loaded inside the inner shell 25. The space between the inner shell 25 and the adsorption box 10 is in a vacuum state. The inner shell 25 and the adsorption box 10 are supported by a plurality of evenly distributed support members 26. The support members 26 are made of heat-insulating material, which can insulate the adsorption material 1001 inside the inner shell 25 and prevent the adsorption material 1001 from burning.

[0116] 6. A mesh tube 27 is installed between the air outlet end of the steering pipe 9 and the air inlet end of the exhaust pipe 11. The mesh tube 27 is buried in the adsorption material 1001 and has a folded and spiraled structure. It can greatly increase the contact area between the gas and the adsorption material 1001 and enhance the adsorption effect. At the same time, it can prevent the gas from gathering in one place, which may cause the local adsorption material 1001 to rise in temperature too high and generate the risk of spontaneous combustion. The dispersed adsorption method can also reduce the vibration and noise caused by the gas surge during exhaust.

[0117] Embodiment 2

[0118] The electrical equipment provided in the embodiment of the present invention includes the power energy storage battery described in the first embodiment, and therefore also has all the beneficial effects in the first embodiment, which will not be described in detail here.

[0119] It should be noted that, in the absence of conflict, the features in the embodiments of this application may be combined with each other.

[0120] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A power energy storage battery, characterized in that: include: Battery body, protective frame, gas collecting pipe, gas transmission pipe, control pipe, adsorption box and multiple ventilation pipes; The battery body is installed in the protective frame, and the plurality of vent pipes are installed at the bottom of the battery body, and the air inlet ends are extended to the independent battery module inside the battery body, and the air outlet ends are connected to the air collecting pipe; The gas collecting pipe is installed at the bottom of the battery body, and the gas outlet end of the gas collecting pipe is connected to the gas delivery pipe; The air inlet end of the control tube is connected to the air delivery pipe, and the air outlet end is in fluid communication with the adsorption box. A first control component is installed in the control tube, and the first control component controls the control tube to switch from a closed state to an open state through a pressure difference. The adsorption box is filled with adsorption material, and the adsorption box is equipped with an exhaust pipe; The exhaust pipe is equipped with a second control component, which controls the opening and closing of the exhaust pipe through a pressure difference, and the second control component is linked with the first control component, and the linkage means that when the first control component controls the control pipe to open, the second control component controls the exhaust pipe to open; The adsorption box is installed on the right side of the bracket, and the lower right side of the bracket is hollowed out. When the control tube is in the closed state, the axis of the exhaust pipe is horizontally set; when the control tube is in the open state, the axis of the exhaust pipe is vertically set, and the outlet end of the exhaust pipe faces the ground.

2. The power storage battery according to claim 1, characterized in that: The first control assembly includes a fixed valve, a movable valve and a first elastic member; The outer wall of the fixed valve is connected to the inner wall of the control tube and has a vent hole; The first elastic member is located on a side of the fixed valve away from the gas pipe, and one end of the first elastic member is connected to the control pipe, and the other end is connected to the movable valve; When the control tube is in the closed state, the movable valve abuts against the fixed valve; when the control tube is in the open state, the movable valve is separated from the fixed valve.

3. The power storage battery according to claim 2, characterized in that: The first control assembly further includes a fixing frame, the fixing frame is installed in the control tube, and one end of the first elastic member facing away from the active valve is installed on the fixing frame.

4. The power storage battery according to claim 2, characterized in that: A positioning slide bar is installed on the side wall of the movable valve, and a slide groove is correspondingly provided on the inner wall of the control tube, and the positioning slide bar is slidably matched with the slide groove.

5. The power storage battery according to claim 4, characterized in that: The first control assembly further comprises a stopper, a second elastic member and a positioning block, and a bottom wall of the slideway at one end away from the gas delivery pipe is provided with a positioning groove; The stopper is installed on the outer wall of the movable valve close to the first elastic member, one end of the second elastic member is connected to the stopper, and the other end is connected to the positioning block, and the axis of the second elastic member is perpendicular to the axis of the control tube; When the control tube is in the open state, the locking block is engaged with the locking slot.

6. The power storage battery according to claim 1, characterized in that: The first control component includes a diaphragm, and the outer wall of the diaphragm is connected to the inner wall of the control tube.

7. The power storage battery according to claim 1, characterized in that: The second control assembly includes a suspension cover and a third elastic member; The hanging cover is located at the outlet end of the exhaust pipe, and one end of the third elastic member is connected to the side wall of the protective frame, and the other end is connected to the hanging cover; When the control pipe is in the closed state, the hanging cover is in contact with the exhaust pipe; when the control pipe is in the open state, the hanging cover is separated from the exhaust pipe.

8. The power storage battery according to claim 7, characterized in that: The power energy storage battery also includes a fixed tube, a bellows and a steering tube; The fixed pipe is communicated with the control pipe, two ends of the bellows are respectively communicated with the fixed pipe and the steering pipe, and the air outlet end of the steering pipe is communicated with the adsorption box.

9. The power storage battery according to claim 8, characterized in that: The power energy storage battery includes a third control component, and the third control component controls the rotation of the steering tube.

10. The power storage battery according to claim 9, characterized in that: The third control assembly includes a first rotating plate installed on the side wall of the fixed tube, and a second rotating plate installed on the steering tube; One end of the first rotating plate facing away from the fixed tube overlaps and is rotatably connected with one end of the second rotating plate facing away from the steering tube, and the axis of the rotating shaft is perpendicular to the axis of the fixed tube.

11. The power energy storage battery according to claim 10, characterized in that: The first rotating plate and the second rotating plate are rotatably connected via a central rotating rod, and the axis of the central rotating rod is perpendicular to the axis of the fixed tube; The central rotating rod is installed on the first rotating plate or the second rotating plate, and is correspondingly inserted into the second rotating plate or the first rotating plate.

12. The power storage battery according to claim 11, characterized in that: The third control assembly further includes a positioning ring and a fourth elastic member, wherein the positioning ring is installed at the intersection of the first rotating plate and the second rotating plate, and the fourth elastic member is installed on the central rotating rod, and the axis of the fourth elastic member is perpendicular to the axes of the central rotating rod and the fixed tube; When the control tube is in the open state, two ends of the fourth elastic member are clamped in the positioning slots of the positioning ring.

13. The power storage battery according to claim 1, characterized in that: An inner shell is installed in the adsorption box, the adsorption material is filled in the inner shell, and a vacuum state is formed between the inner shell and the inner wall of the adsorption box.

14. The power energy storage battery according to claim 13, characterized in that: A support member is installed between the inner shell and the inner wall of the adsorption box.

15. The power storage battery according to claim 1, characterized in that: The adsorption box further comprises a mesh tube, one end of which is in fluid communication with the control tube, and the other end of which is in fluid communication with the exhaust pipe, and the mesh tube is buried in the adsorption material.

16. The power energy storage battery according to claim 15, characterized in that: Two of the network pipes and the exhaust pipes are provided, and the two network pipes are both in fluid communication with the control pipe and are correspondingly in fluid communication with the two exhaust pipes.

17. An electrical equipment, characterized in that: Comprising a power energy storage battery as described in any one of claims 1-16.

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