Circulating protection box

Abstract

The invention relates to the technical field of lithium battery protection boxes, in particular to a circulating protection box. The circulating protection box comprises a protection box body and a box cover, the protection box body is composed of a left side plate, a right side plate, a bottom plate, a back plate and a front plate, the plate of the protection box body is selected from silicon dioxide aerogel composite plates, the bottom plate is provided with a temperature sensing probe, and the back plate is provided with a fire extinguisher. The application of the silicon dioxide cementing material composite board ensures that the influence on the environment is reduced and the resource consumption is reduced on the basis of keeping the original excellent performance of the bakelite box; a temperature sensing probe is arranged on the bottom plate, and a fire extinguisher is arranged on the back plate; the safety and adaptability of the circulating protection box are improved, so that the provided circulating protection box not only provides physical protection for the battery, but also can quickly respond when abnormal conditions such as a fire disaster occur, the loss is reduced to the maximum extent, and wide application is facilitated.

Description

Technical Field

[0001] The present application belongs to the technical field of lithium battery protection boxes, and in particular, relates to a circulation protection box. Background Art

[0002] Lithium-ion battery is a secondary battery (rechargeable battery) that mainly relies on the movement of lithium ions between the positive and negative electrodes to work. + Insertion and deinsertion back and forth between the two electrodes: During charging, Li + It is deintercalated from the positive electrode and intercalated into the negative electrode through the electrolyte, and the negative electrode is in a lithium-rich state; the opposite is true during discharge.

[0003] The battery itself is relatively fragile and easily damaged during storage and transportation. It is generally stored in a battery storage box to protect the battery from damage.

[0004] Traditional bakelite boxes are made of bakelite boards. Although they have certain insulation, high temperature resistance, non-conductivity and wear resistance, with the development of technology, bakelite boards are prone to deformation and cracking in high temperature environments, and are heavy, which is not conducive to transportation and installation. Their performance can no longer meet the needs of series battery pack cycles. At the same time, the secondary pollution generated by bakelite boards in the production process and the impact of resource consumption on the environment and society have attracted widespread attention. Summary of the invention

[0005] The purpose of the present application is to provide a circulation protection box, aiming to solve the problems of insufficient performance and poor safety of traditional bakelite boxes in the prior art.

[0006] In order to achieve the above application purpose, the technical solution adopted in this application is as follows:

[0007] In the first aspect, the present application provides a circulation protection box, including a protection box body and a box cover, the protection box body is composed of left and right side panels, a bottom plate, a back plate and a front plate, the plate material of the protection box body is selected from a silica aerogel composite plate material, and the bottom plate is provided with a temperature sensing probe and the back plate is provided with a fire extinguisher.

[0008] In some embodiments, the silica aerogel composite board includes a bakelite board and a silica aerogel board, wherein the silica aerogel board is disposed inside the protective box body.

[0009] In some embodiments, the thickness of the silica aerogel composite sheet is 1-5 cm, the porosity is 30%-70%, and the density is 98-260 kg / m 2 The compressive strength is 2.9-3.7MPa, the flexural strength is 1.9-3.3MPa, the thermal conductivity is 0.023-0.035W / (m·K), and the hydrophobic angle is 129-153°.

[0010] In some embodiments, the temperature sensing probe is arranged on the bottom plate by a contact type straight line laying wiring method, and is connected to the fire extinguisher through a back plate.

[0011] In some embodiments, the temperature sensing probe includes a signal processing unit, a terminal processor, and a linear temperature sensor.

[0012] In some embodiments, the protective box body is divided by a plurality of partitions to form a plurality of partition slots.

[0013] In some embodiments, bolt grooves are provided at both ends of each plate material of the protective box body for bolt connection.

[0014] In some embodiments, the circulation protection box is provided with air holes.

[0015] In some embodiments, the diameter of the ventilation holes is 1 to 1.2 cm.

[0016] In some embodiments, the back plate is provided with holes and slots.

[0017] In some embodiments, the cover plate of the box cover is provided with a bayonet slot, and the bayonet slot is used to connect the cover plate and the protective box body.

[0018] The circulation protection box provided in the first aspect of the present application includes a protection box body and a box cover. The protection box body is composed of left and right side panels, a bottom plate, a back plate and a front plate. The plate of the protection box body is selected from a silica aerogel composite plate. The silica aerogel composite plate is a lightweight, porous material with extremely high insulation, high temperature resistance, anti-static and wear resistance. On the basis of maintaining the original excellent performance of the bakelite box, it reduces the impact on the environment and reduces resource consumption; and a temperature sensor is provided on the bottom plate, and a fire extinguisher is provided on the back plate; the circulation protection box is further integrated with a temperature sensor and a fire extinguisher. Once the battery in the protection box is abnormal, fire extinguishing measures can be automatically taken, which improves the safety and adaptability of the circulation protection box, and is particularly suitable for precision equipment and battery packs inside the protection box. Therefore, the provided circulation protection box not only provides physical protection for the battery, but also can respond quickly in abnormal situations such as fire, minimize losses, and is conducive to widespread use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1It is a main schematic diagram of the circulation protection box provided in the embodiment of the present application.

[0021] Figure 2 It is a schematic diagram of the box cover of the circulation protection box provided in an embodiment of the present application.

[0022] Figure 3 It is a schematic diagram of the side panel of the circulation protection box provided in the embodiment of the present application.

[0023] Figure 4 It is a schematic diagram of the partition of the circulation protection box provided in the embodiment of the present application.

[0024] Figure 5 It is a schematic diagram of the bottom plate of the circulation protection box provided in the embodiment of the present application.

[0025] Figure 6 It is a schematic diagram of the back panel of the circulation protection box provided in the embodiment of the present application.

[0026] Figure 7 It is a schematic diagram of the front panel of the circulation protection box provided in an embodiment of the present application. DETAILED DESCRIPTION

[0027] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0028] In this application, the term "and / or" describes the association relationship of associated objects, indicating that there may be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. A and B can be singular or plural. The character " / " generally indicates that the associated objects are in an "or" relationship.

[0029] In this application, "at least one" means one or more, and "plurality" means two or more. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, "at least one of a, b, or c", or "at least one of a, b, and c" can all mean: a, b, c, ab (i.e., a and b), ac, bc, or abc, where a, b, c can be single or multiple, respectively.

[0030] It should be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution, some or all of the steps can be executed in parallel or sequentially, and the execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0031] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "an" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

[0032] The weight of the relevant components mentioned in the embodiment description of the present application can not only refer to the specific content of each component, but also represent the proportional relationship between the weights of the components. Therefore, as long as the content of the relevant components is proportionally enlarged or reduced according to the embodiment description of the present application, it is within the scope disclosed in the embodiment description of the present application. Specifically, the mass in the embodiment description of the present application can be μg, mg, g, kg and other mass units known in the chemical industry.

[0033] The terms "first" and "second" are used only for descriptive purposes to distinguish objects such as substances from each other, and should not be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. For example, without departing from the scope of the embodiments of the present application, the first XX may also be referred to as the second XX, and similarly, the second XX may also be referred to as the first XX. Thus, features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0034] The present application embodiment provides a circulation protection box, such as Figure 1 As shown, it includes a protective box body and a box cover (such as Figure 2 As shown), the protective box body consists of left and right side panels (as shown Figure 3 As shown), bottom plate (as Figure 5 As shown), backplane (as Figure 6 as shown) and the front plate (as Figure 7 The protective box body is composed of a sheet material selected from a silica aerogel composite sheet material, and a temperature sensing probe is provided on the bottom plate and a fire extinguisher is provided on the back plate.

[0035] The circulation protection box provided in the first aspect of the embodiment of the present application includes a protection box body and a box cover. The protection box body is composed of left and right side panels, a bottom panel, a back panel and a front panel. The plate material of the protection box body is selected from a silica aerogel composite plate material. The silica aerogel composite plate is a lightweight, porous material with extremely high insulation, high temperature resistance, anti-static and wear resistance. On the basis of maintaining the original excellent performance of the bakelite box, it reduces the impact on the environment and reduces resource consumption; and a temperature sensor is provided on the bottom panel and a fire extinguisher is provided on the back panel; the circulation protection box is further integrated with a temperature sensor and a fire extinguisher. Once an abnormality occurs in the battery in the protection box, fire extinguishing measures can be automatically taken, thereby improving the safety and adaptability of the circulation protection box, and is particularly suitable for precision equipment and battery packs inside the protection box. Therefore, the provided circulation protection box not only provides physical protection for the battery, but also can respond quickly in the event of abnormal conditions such as fire, minimize losses, and is conducive to widespread use.

[0036] The circulation protection box comprises a protection box body and a box cover, and the protection box body comprises left and right side panels, a bottom panel, a back panel and a front panel. The size and shape of the provided circulation protection box can be adjusted according to actual needs.

[0037] In some embodiments, the silica aerogel composite sheet includes a bakelite board and a silica aerogel board, wherein the silica aerogel board is disposed inside the protective box body. In some specific embodiments, in the silica aerogel composite sheet, the bakelite board and the silica aerogel board have the same thickness.

[0038] In some embodiments, the thickness of the silica aerogel composite sheet is 1-5 cm, the porosity is 30%-70%, and the density is 98-260 kg / m 2 , compressive strength is 2.9-3.7MPa, flexural strength is 1.9-3.3MPa, thermal conductivity is 0.023-0.035W / (m·K), and hydrophobic angle is 129-153°. Using silica aerogel board as the side panel material, the protection of the battery pack can achieve multiple protections such as insulation, high temperature resistance, non-conductivity and wear resistance.

[0039] In some embodiments, the protective box body is composed of a plurality of partitions (such as Figure 4 The separator is used to separate and fix the combined cycle battery; the separator and the protective box body form a separator slot, so that the battery box can be firmly inserted and avoid mutual interference, thereby protecting other lithium batteries. Each separator has a certain width to accommodate batteries of different sizes. The number and position of the separators can be adjusted according to actual needs.

[0040] Furthermore, the bottom plate is provided with a temperature sensing probe, and the back plate is provided with a fire extinguisher.

[0041] In some embodiments, the temperature sensing probe includes a signal processing unit, a terminal processor, and a linear temperature sensor. The temperature sensing probe is used to monitor the temperature in the circulation protection box in real time. When the temperature is detected to reach 130°C, the temperature sensing probe can trigger an alarm and start a fire extinguishing procedure. The working principle of the temperature sensing probe is to monitor the temperature change on the surface of the assembled battery. When the temperature change reaches a preset value, the probe will send an alarm signal.

[0042] In some embodiments, the temperature sensing probe is arranged on the bottom plate by a contact type straight line laying wiring method, and is connected to the fire extinguisher through a back plate.

[0043] A carbon dioxide water-based fire extinguisher is equipped inside the protective box. When the temperature probe detects the fire source and sends a signal, the fire extinguisher can automatically start and spray carbon dioxide to extinguish the fire. The working principle of the carbon dioxide fire extinguisher is to release carbon dioxide gas to quickly cover the flame and reduce the contact between the flame and oxygen in the air, thereby achieving the effect of extinguishing the fire. The protective box is equipped with a control system to receive the signal from the temperature probe and control the start of the fire extinguisher. The system can be designed to start automatically when a fire source is detected, or it can provide the option of manual start. The carbon dioxide fire extinguisher will not leave residue or produce secondary pollution during the fire extinguishing process, so it is particularly suitable for precision equipment and battery packs inside the protective box.

[0044] In some embodiments, the back plate is provided with a hole slot. The hole slot facilitates the entry of the combined battery connection wire. The design of the hole slot should take into account the number and position of the battery connection wires to ensure smooth entry and fixation of the connection wires. At the same time, the size and shape of the hole slot should also be suitable for the connection wires to avoid damage or obstruction to the normal use of the connection wires.

[0045] In some embodiments, bolt grooves are provided at both ends of each plate of the protective box body for bolt connection. The design of the bolt grooves facilitates the connection between components. The side plates can be fixed by bolt connection to enhance the stability and load-bearing capacity of the box body. The bolt connection method facilitates disassembly and assembly, making the protective box easy to adjust and repair.

[0046] In some embodiments, the circulation protection box is provided with air holes. The provision of the air holes helps to maintain the accuracy of the circulation temperature. The location and number of the air holes can be designed according to actual needs to ensure that the temperature change during the circulation process does not affect the accuracy of the temperature measurement. The size and shape of the air holes can be optimized to ensure proper gas flow and temperature regulation.

[0047] In some embodiments, the diameter of the vent hole is 1-1.2 cm. The size of the vent hole can be adjusted according to specific use.

[0048] In some specific embodiments, the diameter of the air holes includes but is not limited to 1 cm, 1.05 cm, 1.1 cm, 1.15 cm, and 1.2 cm.

[0049] The design of the cover of the combined cycle protection box takes into account the needs of heat dissipation and observation of the condition of the lithium battery pack.

[0050] In some embodiments, the cover plate of the box cover is provided with a bayonet slot, which is used to connect the cover plate and the protective box body. This prevents external dust and debris from entering the interior of the protective box, while also enhancing the stability of the entire box body. Through such a design, the cover plate of the combined cycle protective box can simultaneously meet the requirements of heat dissipation and observation of the status of the lithium battery pack.

[0051] In some embodiments, the cover is also provided with air holes so as to connect with the box and maintain stability. The function of the air holes is to provide a channel for ventilation and gas exchange to ensure air flow inside the lithium battery pack and prevent overheating. Each cover has 4×6 air holes with a diameter of 1 cm, which are evenly distributed on the cover. At the same time, the condition of the lithium battery pack can also be observed through the air holes.

[0052] The following describes the invention in conjunction with specific embodiments.

[0053] Example 1

[0054] like Figure 1 As shown, a circulation protection box includes a protection box body and a box cover, the cover plate of the box cover is provided with a bayonet groove, and the bayonet groove is used to connect the cover plate and the protection box body; the protection box body is composed of left and right side plates, a bottom plate, a back plate and a front plate, the protection box body is divided by multiple partitions to form multiple partition grooves, and both ends of each plate of the protection box body are provided with bolt grooves for bolt connection.

[0055] The plate material of the protection box body is selected from silica aerogel composite plate material, and the bottom plate is provided with a temperature sensing probe, and the back plate is provided with a fire extinguisher; the temperature sensing probe is arranged on the bottom plate by a contact straight-line laying wiring method, and is connected to the carbon dioxide water-based fire extinguisher through the back plate; the temperature sensing probe includes a signal processing unit, a terminal processor, and a linear temperature sensor; wherein the silica aerogel composite plate material includes a bakelite board and a silica aerogel board, and the silica aerogel board is arranged inside the protection box body, and the silica aerogel composite plate material has a thickness of 1 cm, a porosity of 50%, and a density of 130 kg / m 2 , compressive strength is 3.2MPa, flexural strength is 2.5MPa, thermal conductivity is 0.028W / (m·K), and hydrophobic angle is 129°.

[0056] The circulation protection box is provided with ventilation holes as a whole, and the diameter of the ventilation holes is 1 cm; wherein, there are 4×6 ventilation holes on the cover plate, and the diameter of the ventilation holes is 1 cm, which are evenly distributed on the cover plate.

[0057] Working principle: When the temperature sensor detects the fire source and sends a signal, the fire extinguisher can automatically start and spray carbon dioxide to extinguish the fire. The working principle of the carbon dioxide fire extinguisher is to release carbon dioxide gas to quickly cover the flame and reduce the contact between the flame and oxygen in the air, thereby achieving the effect of extinguishing the fire.

[0058] Example 2

[0059] A circulation protection box comprises a protection box body and a box cover, wherein the cover plate of the box cover is provided with a bayonet groove, and the bayonet groove is used to connect the cover plate and the protection box body; the protection box body is composed of left and right side plates, a bottom plate, a back plate and a front plate, and the protection box body is divided by a plurality of partition plates to form a plurality of partition plate grooves, and bolt grooves are provided at both ends of each plate material of the protection box body for bolt connection.

[0060] The plate material of the protection box body is selected from silica aerogel composite plate material, and the bottom plate is provided with a temperature sensing probe, and the back plate is provided with a fire extinguisher; the temperature sensing probe is arranged on the bottom plate by a contact straight-line laying wiring method, and is connected to the carbon dioxide water-based fire extinguisher through the back plate; the temperature sensing probe includes a signal processing unit, a terminal processor, and a linear temperature sensor; wherein the silica aerogel composite plate material includes a bakelite board and a silica aerogel board, and the silica aerogel board is arranged inside the protection box body, and the silica aerogel composite plate material has a thickness of 2 cm, a porosity of 30%, and a density of 98 kg / m 2 , compressive strength is 2.9MPa, flexural strength is 1.9MPa, thermal conductivity is 0.023W / (m·K), and hydrophobic angle is 135°.

[0061] The circulation protection box is provided with ventilation holes as a whole, and the diameter of the ventilation holes is 1.1 cm; among them, there are 4×6 ventilation holes on the cover plate, and the diameter of the ventilation holes is 1.1 cm, which are evenly distributed on the cover plate.

[0062] Working principle: When the temperature sensor detects the fire source and sends a signal, the fire extinguisher can automatically start and spray carbon dioxide to extinguish the fire. The working principle of the carbon dioxide fire extinguisher is to release carbon dioxide gas to quickly cover the flame and reduce the contact between the flame and oxygen in the air, thereby achieving the effect of extinguishing the fire.

[0063] Example 3

[0064] A circulation protection box comprises a protection box body and a box cover, wherein the cover plate of the box cover is provided with a bayonet groove, and the bayonet groove is used to connect the cover plate and the protection box body; the protection box body is composed of left and right side plates, a bottom plate, a back plate and a front plate, and the protection box body is divided by a plurality of partition plates to form a plurality of partition plate grooves, and bolt grooves are provided at both ends of each plate material of the protection box body for bolt connection.

[0065] The plate material of the protection box body is selected from silica aerogel composite plate material, and the bottom plate is provided with a temperature sensing probe, and the back plate is provided with a fire extinguisher; the temperature sensing probe is arranged on the bottom plate by a contact straight-line laying wiring method, and is connected to the carbon dioxide water-based fire extinguisher through the back plate; the temperature sensing probe includes a signal processing unit, a terminal processor, and a linear temperature sensor; wherein the silica aerogel composite plate material includes a bakelite board and a silica aerogel board, and the silica aerogel board is arranged inside the protection box body, and the silica aerogel composite plate material has a thickness of 5 cm, a porosity of 70%, and a density of 260 kg / m 2 , compressive strength is 3.7MPa, flexural strength is 3.3MPa, thermal conductivity is 0.035W / (m·K), and hydrophobic angle is 153°.

[0066] The circulation protection box is provided with ventilation holes as a whole, and the diameter of the ventilation holes is 1.2 cm; among them, there are 4×6 ventilation holes on the cover plate, and the diameter of the ventilation holes is 1.2 cm, which are evenly distributed on the cover plate.

[0067] Working principle: When the temperature sensor detects the fire source and sends a signal, the fire extinguisher can automatically start and spray carbon dioxide to extinguish the fire. The working principle of the carbon dioxide fire extinguisher is to release carbon dioxide gas to quickly cover the flame and reduce the contact between the flame and oxygen in the air, thereby achieving the effect of extinguishing the fire.

[0068] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A circulation protection box, comprising a protection box body and a box cover, wherein the protection box body is composed of left and right side plates, a bottom plate, a back plate and a front plate, characterized in that: The plate material of the protection box body is selected from a silica aerogel composite plate material, and the bottom plate is provided with a temperature sensing probe, and the back plate is provided with a fire extinguisher.

2. The circulation protection box according to claim 1, characterized in that: The silica aerogel composite board comprises a bakelite board and a silica aerogel board, wherein the silica aerogel board is arranged inside the protection box body.

3. The circulation protection box according to claim 1, characterized in that: The thickness of the silica aerogel composite plate is 1 to 5 cm, the porosity is 30% to 70%, and the density is 98-260 kg / m 2 The compressive strength is 2.9-3.7MPa, the flexural strength is 1.9-3.3MPa, the thermal conductivity is 0.023-0.035W / (m·K), and the hydrophobic angle is 129-153°.

4. The circulation protection box according to claim 1, characterized in that: The temperature sensing probe is arranged on the bottom plate by contact-type straight-line laying wiring, and is connected to the fire extinguisher through the back plate; and / or, The temperature sensing probe comprises a signal processing unit, a terminal processor and a linear temperature sensor.

5. The circulation protection box according to any one of claims 1 to 4, characterized in that: The protection box body is divided by a plurality of partitions to form a plurality of partition grooves.

6. The circulation protection box according to any one of claims 1 to 4, characterized in that: Both ends of each plate of the protection box body are provided with bolt grooves for bolt connection.

7. The circulation protection box according to any one of claims 1 to 4, characterized in that: The circulation protection box is provided with air holes.

8. The circulation protection box according to claim 7, characterized in that: The diameter of the air holes is 1 to 1.2 cm.

9. The circulation protection box according to any one of claims 1 to 4, characterized in that: The back plate is provided with holes and slots.

10. The circulation protection box according to any one of claims 1 to 4, characterized in that: The cover plate of the box cover is provided with a bayonet slot, and the bayonet slot is used to connect the cover plate and the protection box body.

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