Explosion-proof energy storage battery pack

Abstract

The utility model is applicable to the technical field of batteries, and provides an anti-explosion energy storage battery pack, which comprises a battery compartment, and a battery cavity is formed in the battery compartment; the assembly seat, the battery pack and the explosion-proof mechanism are arranged in the battery cavity; the explosion-proof mechanism comprises two groups of assembling grooves formed in the outer side of the battery compartment; the heat dissipation fans are arranged in the two groups of assembly grooves; the filter screens are arranged on the outer sides of the two groups of cooling fans; the explosion-proof wire is arranged inside the battery pack, one end of the explosion-proof wire is connected with the inside of the battery pack, and the other end of the explosion-proof wire extends to the outside of the battery; according to the utility model, heat can be effectively dissipated during operation of the battery pack, thermal runaway is prevented, the battery can quickly release pressure under abnormal conditions, and battery explosion is prevented; according to the utility model, the stability and safety of the battery pack are effectively improved, the risks of short circuit and fire blast are reduced, and the electrical isolation between the battery and the assembly seat is enhanced, so that the overall safety and reliability are improved, and the working performance of the battery pack and the use safety of a user are jointly enhanced.

Description

Technical Field

[0001] The utility model belongs to the technical field of batteries, and in particular relates to an explosion-proof energy storage battery pack. Background Art

[0002] Energy storage battery packs have been widely used in daily life due to their economic and environmental performance. However, with their popularity, the explosion-proof safety of battery packs has become increasingly prominent. Explosion-proof safety is an important consideration in battery pack design, which is related to user safety and property safety.

[0003] A key issue is that energy storage battery packs will generate a lot of heat during long-term use. If this heat cannot be dissipated promptly and effectively, the internal temperature of the battery will continue to rise, thereby accelerating battery aging and damage. Especially in high temperature environments, the operating temperature of the battery will further rise, increasing the risk of thermal runaway and explosion. Utility Model Content

[0004] The utility model provides an explosion-proof energy storage battery pack, aiming to solve the problem that the existing energy storage battery pack will generate a large amount of heat during long-term use, causing the internal temperature of the battery to continue to rise, thereby accelerating the aging and damage of the battery, and increasing the risk of thermal runaway and explosion of the battery.

[0005] The utility model is implemented as follows: an explosion-proof energy storage battery pack includes a battery compartment, wherein a battery cavity is provided in the battery compartment; an assembly seat arranged at the bottom side of the battery cavity; a battery pack arranged above the assembly seat; and an explosion-proof mechanism arranged at the outside of the battery pack; wherein the explosion-proof mechanism includes: two groups of assembly slots symmetrically arranged at the outside of the battery compartment; heat dissipation fans arranged in the two groups of assembly slots, wherein the two groups of heat dissipation fans form mutually connected air flow paths; a filter screen arranged at the outside of the two groups of heat dissipation fans; and an explosion-proof wire arranged inside the battery pack, wherein one end of the explosion-proof wire is connected to the inside of the battery pack, and the other end of the explosion-proof wire extends to the outside of the battery compartment.

[0006] Preferably, the assembly seat comprises: a plurality of partition plates arranged on the upper surface of the assembly seat, the plurality of partition plates jointly dividing a plurality of independent partition chambers; a single battery is arranged in each of the partition chambers, and the plurality of single batteries are connected in series to form a battery pack.

[0007] Preferably, a plurality of return springs are provided at the top of the battery cavity, dampers are provided inside the plurality of return springs, a same fastening plate is provided at the bottom of the plurality of return springs, and an insulating pad is provided at the bottom of the fastening plate.

[0008] Preferably, a temperature sensor and a pressure sensor are provided in the battery cavity, and a controller electrically connected to the explosion-proof mechanism, the temperature sensor and the pressure sensor is provided on an outer wall of one side of the battery compartment.

[0009] Preferably, lateral heat dissipation holes communicating with the battery cavity are provided at the end positions on both sides of the battery compartment.

[0010] Preferably, the middle position of the bottom of the battery compartment is recessed upward to form a groove, and a bottom heat dissipation hole connected to the assembly seat is opened in the groove.

[0011] Preferably, a plurality of heat dissipation fins are symmetrically arranged on both sides of the battery cavity.

[0012] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0013] First: This device uses multiple cooling fans to ensure that when the battery pack is operating normally, air can circulate freely, effectively removing the generated heat from the battery pack, further promoting the discharge of heat, and preventing the occurrence of thermal runaway of the battery. The combined use of lateral cooling holes and bottom cooling holes makes the heat dissipation more uniform and efficient, further enhancing the heat dissipation performance of the battery pack. The installation of explosion-proof wires can quickly release pressure when the internal pressure or temperature of the battery rises abnormally, effectively preventing battery explosion, and providing additional protection for safe use.

[0014] Second: The battery is firmly installed and fixed by the assembly seat, which effectively prevents the battery from moving or falling off during operation, thereby improving the overall stability of the battery pack; the independent partition cavity design avoids direct contact between batteries and reduces the risk of short circuit and explosion between batteries; the use of insulating pads ensures electrical isolation between the battery and the assembly seat, further improving the safety and reliability of the battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 3 It is a front structural schematic diagram of the utility model;

[0018] Figure 4 It is a side structural schematic diagram of the utility model;

[0019] In the figure: 1. Battery compartment; 2. Assembly seat; 3. Battery pack; 401. Assembly slot; 402. Cooling fan; 403. Filter; 404. Explosion-proof wire; 501. Partition plate; 6. Reset spring; 7. Fastening plate; 8. Insulation pad; 9. Temperature sensor; 10. Pressure sensor; 11. Controller; 12. Lateral heat dissipation holes; 13. Bottom heat dissipation holes; 14. Heat dissipation fins. DETAILED DESCRIPTION

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0021] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0022] The utility model embodiment provides an explosion-proof energy storage battery pack, such as Figure 1-4 As shown, it includes a battery compartment 1, in which a battery cavity is opened; an assembly seat 2 arranged at the bottom side of the battery cavity; a battery pack 3 arranged above the assembly seat 2; and an explosion-proof mechanism arranged on the outside of the battery pack 3; wherein the explosion-proof mechanism includes: two groups of assembly slots 401 symmetrically arranged on the outside of the battery compartment 1; cooling fans 402 arranged in the two groups of assembly slots 401, and air flow paths interconnected are formed between the two groups of cooling fans 402; a filter 403 arranged on the outside of the two groups of cooling fans 402; an explosion-proof wire 404 arranged inside the battery pack 3, one end of the explosion-proof wire 404 is connected to the inside of the battery pack 3, and the other end of the explosion-proof wire 404 extends to the outside of the battery compartment 1.

[0023] It should be noted that, since the existing energy storage battery pack 3 will generate a large amount of heat during long-term use, if this heat cannot be dissipated in a timely and effective manner, the internal temperature of the battery will continue to rise, thereby accelerating the aging and damage of the battery, and increasing the risk of thermal runaway and explosion of the battery. The present solution includes multiple cooling fans 402, lateral cooling holes 12 and bottom cooling holes 13, which ensure that the heat of the battery pack 3 can be effectively dissipated during operation to prevent thermal runaway; at the same time, the installation of the explosion-proof line 404 provides additional protection for battery safety, and can quickly release pressure under abnormal circumstances to prevent battery explosion; in addition, through the stable design of the assembly seat 2 and the partition cavity structure, the stability and safety of the battery pack 3 are effectively improved, the risk of short circuit and explosion is reduced, and the electrical isolation between the battery and the assembly seat 2 is enhanced, thereby improving the overall safety and reliability; these comprehensive design measures jointly enhance the working performance of the battery pack 3 and the user's safety.

[0024] Specifically, in the present embodiment, the present solution mainly includes a battery compartment 1, in which a battery cavity is provided; an assembly seat 2, a battery pack 3 and an explosion-proof mechanism are arranged in the battery cavity; when the battery pack 3 is in normal operation, a certain amount of heat will be generated due to the effects of current and chemical reaction. In order to maintain the safety and stability of the battery, the heat dissipation fan 402 will automatically start when needed. These heat dissipation fans 402 are located on both sides of the battery compartment 1 and are fixed by the assembly slot 401. When the heat dissipation fans 402 are working, they will form a connected airflow path to ensure that air can flow freely between the two groups of heat dissipation fans 402. This airflow can effectively take away the heat generated by the battery pack 3 and discharge it from the battery compartment 1 through the heat dissipation holes, thereby preventing the battery from thermal runaway;

[0025] However, in certain abnormal situations, such as battery overcharging or internal short circuit, excessive pressure or temperature may be generated inside the battery. In order to cope with this situation, an explosion-proof wire 404 is installed inside the battery pack 3. One end of the explosion-proof wire 404 is tightly connected to the inside of the battery pack 3, and the other end extends to the outside of the battery compartment 1. Once the pressure or temperature inside the battery exceeds a preset safety threshold, the explosion-proof wire 404 will break immediately, thereby quickly releasing the pressure inside the battery. This mechanism can effectively prevent the battery from exploding and ensure safe use.

[0026] In a further preferred embodiment of the present invention, Figure 3 As shown, the assembly seat 2 includes: a plurality of partition plates 501 arranged on the upper surface of the assembly seat 2, and the plurality of partition plates 501 together divide a plurality of independent partition chambers; a single battery is arranged in each of the partition chambers, and a plurality of the single batteries are connected in series to form a battery pack 3.

[0027] In this embodiment, the assembly seat 2 is responsible for the installation and fixation of the battery, so that the battery can be firmly placed in the partition cavity, which not only prevents the battery from moving or falling off during operation, but also improves the overall stability of the battery pack 3; each battery has its own independent space, avoiding direct contact between the batteries, thereby reducing the possible short circuit and explosion risks between the batteries; the presence of the partition plate 501 can leave gaps between each battery, and these gaps are conducive to air circulation, preventing the battery from malfunctioning or performance degradation due to overheating.

[0028] In a further preferred embodiment of the present invention, Figure 3-4 As shown, a plurality of return springs 6 are arranged at the top position of the battery cavity, a damper is arranged inside each of the return springs 6, a same fastening plate 7 is arranged at the bottom side of the return springs 6, and an insulating pad 8 is arranged at the bottom side of the fastening plate 7.

[0029] In this embodiment, when the battery is placed on the assembly seat 2, the return spring 6 is compressed so that the fastening plate 7 can be closely attached to the upper surface of the battery pack 3. The close contact between the fastening plate 7 and the upper surface of the battery ensures the stable position of the battery on the assembly seat 2, reducing the risk of the battery moving or falling off during operation.

[0030] The insulating pad 8 is made of insulating material and is placed between the fastening plate 7 and the assembly seat 2 to ensure electrical isolation between the battery and the assembly seat 2; this isolation can prevent the occurrence of electrical failure or short circuit, thereby improving the safety and reliability of the battery pack 3.

[0031] In a further preferred embodiment of the present invention, Figure 3 As shown, a temperature sensor 9 and a pressure sensor 10 are disposed in the battery cavity, and a controller 11 electrically connected to the explosion-proof mechanism, the temperature sensor 9 and the pressure sensor 10 is disposed on an outer wall of one side of the battery compartment 1 .

[0032] In this embodiment, the controller (AT89C51) 11 has a built-in preset safety threshold and logic program, which can perform real-time analysis and judgment on the received signal. The temperature sensor (DS18B20) 9 is used to monitor the temperature of the battery in real time, and convert the temperature information into an electrical signal, which is transmitted to the controller 11 for processing. The controller 11 determines whether the battery is within the normal operating temperature range based on the received temperature signal.

[0033] If the battery has an internal short circuit, produces too much gas, or the shell ruptures, the internal pressure of the battery may increase rapidly. The pressure sensor (MPM4800) 10 can sense these pressure changes and convert the pressure signal into an electrical signal and transmit it to the controller 11, so as to timely discover potential safety hazards and take corresponding measures to deal with them, thereby ensuring the safety and stability of the battery pack 3 under various working conditions.

[0034] In a further preferred embodiment of the present invention, Figure 1-2 As shown, lateral heat dissipation holes 12 communicating with the battery cavity are provided at the end positions on both sides of the battery compartment 1 .

[0035] In this embodiment, the design of the lateral heat dissipation holes 12 allows heat to be directly transferred from the battery cavity to the external environment through the holes, providing an additional heat dissipation channel, increasing the heat transfer area, and thus improving the heat dissipation efficiency.

[0036] In a further preferred embodiment of the present invention, Figure 2 As shown, the middle position of the bottom of the battery compartment 1 is sunken upward to form a groove, and a bottom heat dissipation hole 13 connected to the assembly seat 2 is opened in the groove.

[0037] In this embodiment, it helps to speed up the heat exchange between the bottom of the battery pack 3 and the external environment, thereby improving the heat dissipation efficiency.

[0038] In a further preferred embodiment of the present invention, Figure 1-4 As shown, a plurality of heat dissipation fins 14 are symmetrically arranged on both sides of the battery cavity.

[0039] In this embodiment, when the battery pack 3 generates heat, the heat is transferred to the heat dissipation fins 14 by heat conduction; since the thermal conductivity of metal is high, the heat can be quickly transferred from the battery pack 3 to the heat dissipation fins 14 and dissipated to the external environment through the fins.

[0040] Working principle: The assembly seat 2 of the device is responsible for the installation and fixation of the battery, so that the battery can be firmly placed in the partition cavity, which can not only prevent the battery from moving or falling off during operation, but also improve the overall stability of the battery pack 3; each battery has its own independent space, avoiding direct contact between batteries, thereby reducing the possible short circuit and explosion risks between batteries; the existence of the partition plate 501 can leave gaps between each battery, which helps air circulation and prevents the battery from malfunctioning or performance degradation due to overheating;

[0041] The compression of the return spring 6 enables the fastening plate 7 to fit tightly to the upper surface of the battery pack 3. The close contact between the fastening plate 7 and the upper surface of the battery ensures the stable position of the battery on the assembly seat 2, reducing the risk of the battery moving or falling off during operation; the insulating pad 8 is made of insulating material and is placed between the fastening plate 7 and the assembly seat 2 to ensure electrical isolation between the battery and the assembly seat 2; such isolation can prevent the occurrence of electrical faults or short circuits, thereby improving the safety and reliability of the battery pack 3;

[0042] When the battery pack 3 is operating normally, a certain amount of heat will be generated due to the effects of current and chemical reactions. In order to maintain the safety and stability of the battery, the cooling fans 402 will automatically start when needed. These cooling fans 402 are located on both sides of the battery compartment 1 and are fixed by the assembly slots 401. When the cooling fans 402 are working, they will form a connected airflow path to ensure that air can flow freely between the two groups of cooling fans 402. This airflow can effectively take away the heat generated by the battery pack 3 and discharge it from the battery compartment 1 through the heat dissipation holes, thereby preventing the battery from thermal runaway;

[0043] However, in certain abnormal situations, such as battery overcharging or internal short circuit, excessive pressure or temperature may be generated inside the battery. In order to cope with this situation, an explosion-proof wire 404 is installed inside the battery pack 3. One end of the explosion-proof wire 404 is tightly connected to the inside of the battery pack 3, and the other end extends to the outside of the battery compartment 1. Once the pressure or temperature inside the battery exceeds a preset safety threshold, the explosion-proof wire 404 will break immediately, thereby quickly releasing the pressure inside the battery. This mechanism can effectively prevent the battery from exploding and ensure safe use.

[0044] It should be noted that, for the above-mentioned embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the utility model is not limited by the described action sequence, because according to the utility model, some steps may be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the utility model.

[0045] In the several embodiments provided in the present application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely schematic, such as the division of the above-mentioned units. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunication or other forms.

[0046] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0047] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Although the utility model has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the utility model according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the utility model in essence, and these technical solutions also belong to the scope of protection of the utility model.

Claims

1. Explosion-proof energy storage battery pack, characterized in that: include: A battery compartment, wherein a battery cavity is provided in the battery compartment; An assembly seat provided at the bottom side of the battery cavity; A battery pack disposed above the assembly seat; and An explosion-proof mechanism disposed outside the battery pack; Wherein, the explosion-proof mechanism comprises: Two groups of assembly grooves symmetrically arranged on the outside of the battery compartment; The cooling fans are arranged in the two groups of assembly slots, and the two groups of cooling fans form mutually connected air flow paths; Filters installed outside the two sets of cooling fans; An explosion-proof wire is arranged inside the battery pack, one end of the explosion-proof wire is connected to the inside of the battery pack, and the other end of the explosion-proof wire extends to the outside of the battery compartment.

2. The explosion-proof energy storage battery pack according to claim 1, characterized in that: The assembly seat comprises: A plurality of partition plates are arranged on the upper surface of the assembly seat, and the plurality of partition plates together divide a plurality of independent partition chambers; A single battery is arranged in each of the partition chambers, and a plurality of the single batteries are connected in series to form a battery pack.

3. The explosion-proof energy storage battery pack according to claim 1, characterized in that: A plurality of return springs are arranged at the top of the battery cavity, dampers are arranged inside the plurality of return springs, a same fastening plate is arranged at the bottom of the plurality of return springs, and an insulating pad is arranged at the bottom of the fastening plate.

4. The explosion-proof energy storage battery pack according to claim 3, characterized in that: A temperature sensor and a pressure sensor are arranged in the battery cavity, and a controller electrically connected to the explosion-proof mechanism, the temperature sensor and the pressure sensor is arranged on an outer wall of one side of the battery compartment.

5. The explosion-proof energy storage battery pack according to claim 4, characterized in that: The end positions on both sides of the battery compartment are provided with lateral heat dissipation holes which are connected with the battery cavity.

6. The explosion-proof energy storage battery pack according to claim 5, characterized in that: The middle position of the bottom of the battery compartment is recessed upward to form a groove, and a bottom heat dissipation hole connected to the assembly seat is opened in the groove.

7. The explosion-proof energy storage battery pack according to claim 6, characterized in that: A plurality of heat dissipation fins are symmetrically arranged on both sides of the battery cavity.

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