Pack module of large cylindrical battery

Abstract

The utility model discloses a PACK module of big cylinder battery relates to battery technical field, and its structure includes battery component, and the both sides of battery component are provided with fixed plate, and the bottom fixed connection of fixed plate has mounting panel, and the both sides fixed mounting of fixed plate have the fan in the inside, and the front side fixed connection of fixed plate has PLC controller, and the surface of fixed plate is provided with fire extinguishing subassembly. This PACK module of big cylinder battery can monitor the smoke condition around battery component and the internal temperature in real time, so as to accurately judge whether the battery component is on fire, once the monitoring system determines that the battery component is on fire, the PLC controller will immediately start the fire extinguishing program, and the fire is handled quickly and effectively in the early stage of fire, which can not only control the fire in time and prevent the further spread of the fire, but also can reduce the risk caused by the fire to the maximum extent and effectively avoid various dangerous accidents.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, specifically to a PACK module for a large cylindrical battery. Background Technology

[0002] A battery pack module (commonly referred to as a battery module or battery stack) is an energy storage device that combines multiple individual battery cells (cells) in series and parallel, and integrates components such as a battery management system (BMS) and a thermal management system. With the booming development of the new energy industry, the demand for efficient and reliable energy storage devices in fields such as electric vehicles and energy storage systems is increasing. As a key energy storage device, the battery pack module provides stable power support for various devices by combining multiple cells in series and parallel, and integrating components such as a battery management system (BMS) and a thermal management system. It occupies a core position in new energy applications and is widely used in electric vehicles, energy storage systems, and other fields.

[0003] In actual operation, existing large cylindrical battery PACK modules are at risk of spontaneous combustion and fire due to the continuous influence of high temperature environment. Furthermore, existing large cylindrical battery PACK modules lack timely and effective fire extinguishing measures when a fire occurs, making it impossible to quickly control the fire in the early stages and allowing it to spread, thus causing dangerous accidents. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a PACK module for large cylindrical batteries, which solves the problem that in actual operation, due to the continuous influence of high-temperature environments, battery components may spontaneously combust and cause fires. Furthermore, existing large cylindrical battery PACK modules lack timely and effective fire extinguishing measures when a fire occurs, making it impossible to quickly control the fire in its early stages, allowing it to spread and causing dangerous accidents.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a PACK module for a large cylindrical battery, comprising a battery assembly, fixing plates on both sides of the battery assembly, an mounting plate fixedly connected to the bottom of the fixing plates, fans fixedly installed on both sides inside the fixing plates, a PLC controller fixedly connected to one side of the front of the fixing plates, and a fire extinguishing component on the surface of the fixing plates. In this invention, the battery assembly is fixed as a whole by the fixing plates, and then the battery assembly is installed in the required position by the mounting plate. The fans can dissipate heat from the battery assembly to prevent spontaneous combustion and explosion caused by high temperature. Furthermore, the fire extinguishing component can extinguish the fire in the battery assembly to prevent the fire from spreading, thus improving the safety of the battery assembly during use.

[0008] The fire extinguishing assembly includes a smoke sensor, which is fixedly connected to the top of a fixed plate. A temperature sensor is fixedly connected to the back of the fixed plate. A gas cylinder is fixedly connected to the front of the fixed plate. A first nozzle is connected to the top of the gas cylinder, and a first nozzle head is connected to the output end of the first nozzle. A second nozzle is connected to the back of the gas cylinder, and a second nozzle head is connected to the output end of the second nozzle.

[0009] Preferably, both the input ends of the first nozzle and the input ends of the second nozzle are connected to siphon pipes, which pass through the side wall of the cylinder and extend into the interior of the cylinder, which is filled with dry powder extinguishing agent.

[0010] Preferably, a solenoid valve is fixedly connected to the surface of both the first nozzle and the surface of both nozzles, and an electronic igniter is fixedly connected to the surface of both nozzles, the electronic igniter being located inside the cylinder.

[0011] In this invention, when the fire extinguishing component is working, a smoke sensor monitors the smoke around the battery component, and a temperature sensor monitors the internal temperature of the battery component. Once smoke is detected around the battery component or the internal temperature is too high, the PLC controller shuts off the fan and simultaneously activates the fire extinguishing system. During fire extinguishing, the PLC controller opens the solenoid valve and controls the electronic igniter to ignite the gas, thereby reducing the gas pressure inside the cylinder. As a result, the gas and dry powder extinguishing agent inside the cylinder are drawn out by the siphon tube. Then, the dry powder extinguishing agent is sprayed out through the first nozzle, the first nozzle, the second nozzle, and the second nozzle. The sprayed dry powder extinguishing agent can extinguish the fire at the burning location and prevent the fire from spreading. Through the design of the fire extinguishing component, the temperature and smoke around the battery component can be monitored in real time, thereby indirectly determining whether a fire has occurred. In the event of a fire, it can be extinguished immediately to prevent the fire from spreading and avoid dangerous accidents.

[0012] Preferably, the battery assembly includes a lower insulating plate, a cell body is disposed on the top of the lower insulating plate, a cell bracket is snapped into the top and bottom of the cell body, and a first fixing screw is threadedly connected between the two cell brackets.

[0013] Preferably, a battery cell limiting plate is snapped onto the top of the battery cell bracket, a connecting piece limiting plate is snapped onto the top of the battery cell limiting plate, a connecting piece body is snapped onto the top of the connecting piece limiting plate, and an upper insulating plate is snapped onto the top of the connecting piece body.

[0014] Preferably, the upper and lower insulating plates are connected by a second fixing screw, and the upper and lower insulating plates are also connected by a lifting screw. Both the upper and lower insulating plates are fixed to the fixing plate by bolts.

[0015] Preferably, a positive output terminal is fixedly connected to one side of the connecting piece body, and a negative output terminal is fixedly connected to the other side of the connecting piece body.

[0016] In this invention, when assembling the battery assembly, the cell body is first secured between the upper and lower cell supports, and then the cell body is fixed by the cell supports. Next, the two cell supports are fixed with a first fixing screw, thus securing the cell body and the cell supports as a whole. Then, the cell limiting plate is secured onto the upper cell support, and the connecting piece body is secured onto the connecting piece limiting plate. The assembly is then placed on the cell limiting plate, and the entire assembly is placed between the upper and lower insulation plates. Finally, the upper and lower insulation plates are fixed together with a second fixing screw, thus securing the entire assembly. Finally, the assembly is fixed to the upper and lower insulation plates using a lifting screw. Between the insulating plates, when the battery assembly is placed into the box, it is lifted and installed into the box by lifting screws. In use, the battery cell body can store electrical energy. The battery cell body is fixed by the battery cell bracket. The first fixing screw is used to fix the battery cell bracket. The battery cell limiting plate can restrict the direction of the battery cell body, so that the positive and negative poles of the battery cell body are aligned. The connecting piece limiting plate can restrict the movement of the connecting piece body during assembly and play an insulating and protective role. The positive and negative poles of the battery cell body are connected through the connecting piece body, which plays a conductive role. The upper and lower insulating plates can insulate and protect the battery assembly and increase the mechanical strength of the battery assembly. The second fixing screw can fix the entire battery assembly, so that the battery assembly is assembled as a whole.

[0017] (III) Beneficial Effects

[0018] This invention provides a PACK module for a large cylindrical battery. It has the following advantages:

[0019] (i) The PACK module of this large cylindrical battery, through the setting of the fire extinguishing component, can monitor the smoke around the battery component and the internal temperature in real time, so as to accurately determine whether the battery component is on fire. Once the monitoring system determines that the battery component is on fire, the PLC controller will immediately start the fire extinguishing program to carry out rapid and effective fire extinguishing in the early stage of the fire. This can not only control the fire in time and prevent the fire from spreading further, but also minimize the danger caused by the fire and effectively avoid the occurrence of various dangerous accidents.

[0020] (ii) The PACK module of the large cylindrical battery can be easily assembled and used through modular battery components. The assembly is simple and convenient. When a single component inside the battery component is damaged, it can be disassembled and the damaged component can be replaced individually, which reduces maintenance costs. Furthermore, the assembly is simple, easy to operate, and improves maintenance efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a front structural diagram of the fire extinguishing component of this utility model;

[0023] Figure 3 This is a schematic diagram of the back structure of the fire extinguishing component of this utility model;

[0024] Figure 4 This is a side sectional view of the fire extinguishing component of this utility model;

[0025] Figure 5 This is a schematic diagram of the overall structure of the battery assembly of this utility model;

[0026] Figure 6 This is a schematic diagram of the disassembled structure of the battery assembly of this utility model.

[0027] In the diagram: 1. Battery assembly; 101. Lower insulating plate; 102. Battery cell body; 103. Battery cell bracket; 104. First fixing screw; 105. Battery cell limiting plate; 106. Connecting piece limiting plate; 107. Connecting piece body; 108. Upper insulating plate; 109. Second fixing screw; 110. Lifting screw; 111. Positive output terminal; 112. Negative output terminal; 2. Fixing plate; 3. Mounting plate; 4. Fan; 5. PLC controller; 6. Fire extinguishing assembly; 601. Smoke sensor; 602. Temperature sensor; 603. Gas cylinder; 604. First nozzle; 605. First nozzle; 606. Second nozzle; 607. Second nozzle; 608. Siphon tube; 609. Dry powder extinguishing agent; 610. Solenoid valve; 611. Electronic igniter. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] See Figures 1-6 This utility model provides a technical solution: a PACK module for a large cylindrical battery, the structure of which includes a battery component 1, fixing plates 2 on both sides of the battery component 1, an mounting plate 3 fixedly connected to the bottom of the fixing plate 2, fans 4 fixedly installed on both sides inside the fixing plate 2, a PLC controller 5 fixedly connected to one side of the front of the fixing plate 2, and a fire extinguishing component 6 on the surface of the fixing plate 2. Specifically, the battery component 1 is fixed as a whole by the fixing plate 2, and then the battery component 1 is installed in the required position by the mounting plate 3. The fans 4 can dissipate heat from the battery component 1 to prevent the battery component 1 from spontaneously combusting or exploding due to high temperature, and the fire extinguishing component 6 can extinguish the fire of the battery component 1 to prevent the fire from spreading, thereby improving the safety of the battery component 1 during use.

[0030] The fire extinguishing assembly 6 includes a smoke sensor 601, which is fixedly connected to the top of the mounting plate 2. A temperature sensor 602 is fixedly connected to the back of the mounting plate 2. A gas cylinder 603 is fixedly connected to the front of the mounting plate 2. A first nozzle 604 is connected to the top of the gas cylinder 603. A first nozzle 605 is connected to the output end of the first nozzle 604. A second nozzle 606 is connected to the back of the gas cylinder 603. A second nozzle 607 is connected to the output end of the second nozzle 606.

[0031] The first nozzle 604 and the second nozzle 606 are both connected to a siphon tube 608. The siphon tube 608 passes through the side wall of the cylinder 603 and extends into the interior of the cylinder 603. The interior of the cylinder 603 is filled with dry powder extinguishing agent 609.

[0032] Solenoid valves 610 are fixedly connected to the surfaces of the first nozzle 604 and the second nozzle 606, and electronic igniters 611 are fixedly connected to the surfaces of the first nozzle 604 and the second nozzle 606. The electronic igniters 611 are located inside the cylinder 603.

[0033] Specifically, when the fire extinguishing assembly 6 is working, the smoke sensor 601 monitors the smoke around the battery assembly 1, and the temperature sensor 602 monitors the internal temperature of the battery assembly 1. If smoke is detected around the battery assembly 1 or its internal temperature is too high, the PLC controller 5 shuts off the fan 4 and simultaneously activates the fire extinguishing system. During fire extinguishing, the PLC controller 5 opens the solenoid valve 610 and controls the electronic igniter 611 to ignite the gas, thereby reducing the pressure inside the cylinder 603 and thus releasing the gas inside the cylinder 603. Dry powder extinguishing agent 609 is drawn out by siphon pipe 608, and then sprayed out through first nozzle 604, first nozzle 605, second nozzle 606 and second nozzle 607 respectively. The sprayed dry powder extinguishing agent 609 can extinguish the fire and prevent the fire from spreading. Through the setting of extinguishing component 6, the temperature and smoke around battery component 1 can be monitored in real time, thereby indirectly determining whether a fire has occurred. When a fire occurs, it can be extinguished immediately to prevent the fire from spreading and avoid dangerous accidents.

[0034] The battery assembly 1 includes a lower insulating plate 101, a cell body 102 is provided on the top of the lower insulating plate 101, a cell bracket 103 is snapped into the top and bottom of the cell body 102, and a first fixing screw 104 is threadedly connected between the two cell brackets 103.

[0035] Among them, the top of the top cell bracket 103 is snapped with a cell limiting plate 105, the top of the cell limiting plate 105 is snapped with a connecting piece limiting plate 106, the top of the connecting piece limiting plate 106 is snapped with a connecting piece body 107, and the top of the connecting piece body 107 is snapped with an upper insulating plate 108.

[0036] The upper insulating plate 108 and the lower insulating plate 101 are connected by a second fixing screw 109, and the upper insulating plate 108 and the lower insulating plate 101 are connected by a lifting screw 110. The upper insulating plate 108 and the lower insulating plate 101 are both fixedly installed to the fixing plate 2 by bolts.

[0037] The positive output terminal 111 is fixedly connected to one side of the connecting piece body 107, and the negative output terminal 112 is fixedly connected to the other side of the connecting piece body 107.

[0038] Specifically, when assembling battery assembly 1, firstly, the cell body 102 is secured between the upper and lower cell supports 103, and the cell body 102 is fixed by the cell supports 103. Then, the two cell supports 103 are fixed with the first fixing screw 104, thereby fixing the cell body 102 and the cell supports 103 as a whole. Next, the cell limiting plate 105 is secured to the upper cell support 103. Then, the connecting piece body 107 is secured to the connecting piece limiting plate 106. The whole assembly is then placed on the cell limiting plate 105. The above-assembled assembly is placed between the upper insulating plate 108 and the lower insulating plate 101. Finally, the upper insulating plate 108 and the lower insulating plate 101 are fixed with the second fixing screw 109, thereby fixing the entire assembly. Finally, the assembly is fixed to the upper insulating plate 108 and the lower insulating plate 101 by the lifting screw 110. Between the insulating plates 101, when the battery assembly 1 is placed into the box, it is lifted and installed into the box by the lifting screw 110. In use, the battery cell body 102 can store electrical energy. The battery cell body 102 is fixed by the battery cell bracket 103. The first fixing screw 104 is used to fix the battery cell bracket 103. The battery cell limiting plate 105 can limit the direction of the battery cell body 102, so that the positive and negative poles of the battery cell body 102 are aligned. The connecting piece limiting plate 106 can limit the movement of the connecting piece body 107 during assembly, and plays an insulating and protective role. The positive and negative poles of the battery cell body 102 are connected by the connecting piece body 107, which plays a conductive role. The upper insulating plate 108 and the lower insulating plate 101 can insulate and protect the battery assembly 1, and can increase the mechanical strength of the battery assembly 1. The second fixing screw 109 can fix the entire battery assembly 1, so that the battery assembly 1 is assembled into a whole.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A PACK module for a large cylindrical battery, characterized in that: Includes a battery assembly (1), with fixing plates (2) on both sides of the battery assembly (1), a mounting plate (3) fixedly connected to the bottom of the fixing plate (2), fans (4) fixedly installed on both sides inside the fixing plate (2), a PLC controller (5) fixedly connected to one side of the front of the fixing plate (2), and a fire extinguishing component (6) provided on the surface of the fixing plate (2). The fire extinguishing assembly (6) includes a smoke sensor (601), which is fixedly connected to the top of the fixing plate (2). A temperature sensor (602) is fixedly connected to the back of the fixing plate (2). A gas cylinder (603) is fixedly connected to the front of the fixing plate (2). A first nozzle (604) is pipe-connected to the top of the gas cylinder (603). A first nozzle (605) is pipe-connected to the output end of the first nozzle (604). A second nozzle (606) is pipe-connected to the back of the gas cylinder (603). A second nozzle (607) is pipe-connected to the output end of the second nozzle (606).

2. The PACK module for a large cylindrical battery according to claim 1, characterized in that: The input end of the first nozzle (604) and the input end of the second nozzle (606) are both connected to a siphon tube (608). The siphon tube (608) passes through the side wall of the cylinder (603) and extends into the interior of the cylinder (603). The interior of the cylinder (603) is filled with dry powder extinguishing agent (609).

3. The PACK module for a large cylindrical battery according to claim 1, characterized in that: Solenoid valves (610) are fixedly connected to the surface of the first nozzle (604) and the surface of the second nozzle (606). Electronic igniters (611) are fixedly connected to the surface of the first nozzle (604) and the surface of the second nozzle (606). The electronic igniters (611) are located inside the cylinder (603).

4. The PACK module for a large cylindrical battery according to claim 1, characterized in that: The battery assembly (1) includes a lower insulating plate (101), a cell body (102) is provided on the top of the lower insulating plate (101), and a cell bracket (103) is snapped into the top and bottom of the cell body (102). A first fixing screw (104) is threaded between the two cell brackets (103).

5. The PACK module for a large cylindrical battery according to claim 4, characterized in that: The top of the battery cell bracket (103) is fitted with a battery cell limiting plate (105), the top of the battery cell limiting plate (105) is fitted with a connecting piece limiting plate (106), the top of the connecting piece limiting plate (106) is fitted with a connecting piece body (107), and the top of the connecting piece body (107) is fitted with an upper insulating plate (108).

6. The PACK module for a large cylindrical battery according to claim 5, characterized in that: The upper insulating plate (108) and the lower insulating plate (101) are connected by a second fixing screw (109) through a common thread, and the upper insulating plate (108) and the lower insulating plate (101) are connected by a lifting screw (110) through a common thread. The upper insulating plate (108) and the lower insulating plate (101) are both fixedly installed to the fixing plate (2) by bolts.

7. The PACK module for a large cylindrical battery according to claim 5, characterized in that: A positive output terminal (111) is fixedly connected to one side of the connecting piece body (107), and a negative output terminal (112) is fixedly connected to the other side of the connecting piece body (107).

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