Explosion-proof battery module

Abstract

The utility model relates to the technical field of lithium ion batteries, in particular to an explosion-proof battery module. Comprising a battery assembly, a connecting piece, an anti-explosion valve and a pressing strip, the battery assembly comprises a plurality of batteries, and one side face of each battery is provided with an air leakage opening, a positive electrode and a negative electrode; the connecting sheets are connected in series or in parallel with two adjacent batteries through the positive electrodes and the negative electrodes; the anti-explosion valve is arranged at the air release port and comprises a frame and a valve plate, and the valve plate is arranged in the frame; the pressing strip is arranged on the side, provided with the air leakage opening, of the battery assembly and arranged in the height direction of the battery assembly, a flow guide groove is formed in the pressing strip, a plurality of positioning holes are formed in the flow guide groove and correspond to the anti-explosion valve, and the anti-explosion valve is communicated with the flow guide groove through the positioning holes. The problem that high-temperature and high-pressure gas or liquid in a battery has safety risks due to the fact that an anti-explosion valve is not provided with a corresponding guide device in the prior art is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to lithium ion battery technical field especially is a kind of explosion -proof battery module. BACKGROUND

[0002] Lithium-ion batteries are a common type of rechargeable battery widely used in various electronic devices and electric vehicles. It is composed of positive electrode, negative electrode, electrolyte and separator. When charging, lithium ions are released from the positive electrode (usually oxide), move through the electrolyte to the negative electrode (usually carbon) for storage. During discharging, lithium ions move from the negative electrode back to the positive electrode, releasing energy.

[0003] During the use of lithium-ion batteries, affected by external environment such as temperature and pressure, or limited by battery itself problems, when battery module thermal runaway, the internal pressure of battery module is too high, the high temperature and high pressure gas or liquid in the battery needs to be discharged in time to achieve the purpose of explosion-proof. The explosion-proof valve commonly used in the prior art is directly arranged on the surface of the battery shell, and when the high-pressure gas in the battery exceeds a certain value, it directly bursts the explosion-proof valve, so that the high-temperature and high-pressure gas or liquid in the battery is ejected, which may affect and damage other batteries or other components in the battery module, with high safety risk. SUMMARY

[0004] The technical problem to be solved by the embodiments of the utility model is to provide an explosion-proof battery module to solve the problem that the explosion-proof valve in the prior art does not have a corresponding guiding device, which poses a safety risk to the high-temperature and high-pressure gas or liquid in the battery.

[0005] The utility model discloses an explosion -proof battery module, include: battery component, connecting piece, explosion -proof valve and press tightly strip, the battery component includes multiple batteries, the one side of battery is equipped with the air release, positive electrode and negative electrode, the connecting piece is connected or parallelly connected adjacent two batteries through the positive electrode and the negative electrode, the explosion -proof valve is located at the air release, the explosion -proof valve includes frame and valve piece, the valve piece is located in the frame, the press tightly strip is located in the one side of battery component and is equipped with air release, and it is along the battery component height direction setting, the press tightly strip forms the flow guide groove in, the flow guide groove is equipped with a plurality of positioning holes, the positioning hole is correspondingly set with the explosion -proof valve, the explosion -proof valve is communicated with the flow guide groove through the positioning hole.

[0006] Optionally, the press tightly strip includes a first bottom plate and two first side walls connected to each other, the first bottom plate is arranged between the two first side walls to form the flow guide groove, and the positioning holes are arranged on the first bottom plate.

[0007] Optionally, the explosion-proof battery module further comprises a connecting strip, the compression strip connects the battery assembly through the connecting strip, the connecting strip is in a "U" shape, the compression strip is arranged in the connecting strip, and the compression strip is provided with a plurality of avoiding grooves corresponding to the positioning holes.

[0008] Optionally, the connecting strip comprises a second bottom plate and two second side walls connected with each other, the second bottom plate is arranged between the two second side walls, the avoiding grooves are arranged on the second bottom plate, the second bottom plate is arranged between the first bottom plate and the battery assembly, and the first side wall and the second side wall are arranged correspondingly.

[0009] Optionally, the compression strip further comprises a folded edge arranged at an edge of each of the first side walls, a plurality of first connecting holes are arranged on the folded edge, the explosion-proof battery module further comprises a protection plate, a plurality of second connecting holes are arranged on the protection plate and correspond to the first connecting holes, and a connecting piece is arranged to pass through the second connecting holes and the first connecting holes to connect the folded edge and the protection plate.

[0010] Optionally, the connecting piece comprises two connecting portions and a supporting portion arranged between the two connecting portions, and the two connecting portions are connected with positive electrodes and / or negative electrodes of two adjacent batteries respectively.

[0011] Optionally, the explosion-proof battery module further comprises a shell, a cavity is formed in the shell, a partition plate is arranged in the cavity, the partition plate divides the cavity into a first mounting area and a second mounting area, the first mounting area and the second mounting area are arranged in layers, and the battery assembly is arranged in the second mounting area.

[0012] Optionally, opposite ends of the first bottom plate extend out of elongated plates, the elongated plates correspond to opposite sides of the battery assembly respectively, and the elongated plates are fixedly connected with the shell.

[0013] Optionally, the explosion-proof battery module further comprises a battery management module, and the battery management module is arranged in the first mounting area.

[0014] Optionally, the explosion-proof battery module further comprises a pulley assembly, and the pulley assembly is arranged at the bottom of the shell.

[0015] Compared with the prior art, the beneficial effect of the explosion-proof battery module provided by the embodiment of the utility model lies in that the connecting sheet is arranged on the battery assembly, the connecting sheet is used for realizing series connection or parallel connection between two adjacent batteries in the battery assembly, so that a plurality of batteries form an integral battery assembly. The explosion-proof valve is arranged on the battery, the explosion-proof valve can discharge the high-temperature and high-pressure gas or liquid in the battery outward through the air vent arranged on one side of the battery when the battery is unstable due to high temperature and high pressure, the explosion-proof valve is damaged under pressure, so that the high-temperature and high-pressure gas or liquid in the battery can be discharged from the explosion-proof valve, which is equivalent to arranging a channel for guiding the high-temperature and high-pressure gas or liquid in the battery to discharge when the battery is in a bad state, avoiding the leakage of the gas or liquid in the battery from the position other than the air vent due to temperature and pressure damage, avoiding the influence and interference on other batteries in the battery assembly or other components in the explosion-proof battery module, and being beneficial to improving the safety of the explosion-proof battery module. In the actual use process, the gas or liquid in the battery damages the valve sheet in the frame through the air vent, so that the gas or liquid can flow out through the position of the frame. At the same time, the compression strip is arranged on the battery assembly, the flow guide groove is formed in the compression strip, the positioning hole corresponding to the explosion-proof valve is arranged on the flow guide groove, so that the explosion-proof valve is in communication with the flow guide groove, so when the high-temperature and high-pressure liquid in the battery flows out, it can flow into the flow guide groove through the explosion-proof valve and the positioning hole, and the liquid in the battery is guided to the outside of the battery assembly through the flow guide groove, avoiding the influence and damage to the explosion-proof battery module. The above setting mode effectively releases the gas or liquid that may be generated in the battery, avoids the potential danger caused by the accumulation of the liquid and gas in the battery, and reduces the risk of explosion. BRIEF DESCRIPTION OF DRAWINGS

[0016] The technical scheme of the utility model will be further explained in detail below with reference to the drawings and embodiments, and the drawings are as follows:

[0017] Figure 1 is a schematic view of a battery assembly provided by the embodiment of the utility model;

[0018] Figure 2 is a schematic view of a battery provided by the embodiment of the utility model;

[0019] Figure 3 is a schematic view of a battery assembly provided by the embodiment of the utility model;

[0020] Figure 4 is a schematic view of a compression strip, a connecting strip and a protection plate provided by the embodiment of the utility model;

[0021] Figure 5 is a schematic view of a battery, a connecting sheet and an explosion-proof valve provided by the embodiment of the utility model;

[0022] Figure 6It is the schematic diagram of the explosion-proof battery module provided by the embodiment of the utility model.

[0023] The reference signs in the drawings are as follows:

[0024] 1000, explosion-proof battery module; 100, battery assembly; 101, battery; 102, air vent; 103, positive electrode; 104, negative electrode; 200, connecting sheet; 201, connecting part; 202, supporting part; 300, explosion-proof valve; 301, frame; 302, valve sheet; 400, compression strip; 401, positioning hole; 402, flow guide groove; 403, first bottom plate; 404, first side wall; 405, folded edge; 4051, first connecting hole; 406, extension plate; 500, connecting strip; 501, avoiding groove; 502, second bottom plate; 503, second side wall; 600, protection plate; 601, second connecting hole; 700, shell; 701, partition plate; 702, first mounting area; 703, second mounting area; 800, circuit board; 900, pulley set. DETAILED DESCRIPTION

[0025] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. Now, the preferred embodiments of the utility model will be described in detail with reference to the drawings.

[0026] The utility model embodiment provides a kind of explosion-proof battery module 1000, as shown in Figures 1-3 The explosion-proof battery module 1000 includes: battery assembly 100, connecting sheet 200, explosion-proof valve 300 and compression strip 400, battery assembly 100 includes multiple batteries 101, and the side of battery 101 is equipped with air vent 102, positive electrode 103 and negative electrode 104;Connecting sheet 200 is connected in series or parallel through positive electrode 103 and negative electrode 104 adjacent two batteries 101;Explosion-proof valve 300 is located at air vent 102, and explosion-proof valve 300 includes frame 301 and valve sheet 302, and valve sheet 302 is located in frame 301;Compression strip 400 is located in the side of battery assembly 100 equipped with air vent 102, and it is set along the height direction of battery assembly 100, and flow guide groove 402 is formed in compression strip 400, and a plurality of positioning holes 401 are equipped on flow guide groove 402, and positioning hole 401 is correspondingly arranged with explosion-proof valve 300, and explosion-proof valve 300 is communicated with flow guide groove 402 through positioning hole 401.

[0027] The connecting piece 200 is arranged on the battery assembly 100, and is used to realize series connection or parallel connection between two adjacent batteries 101 in the battery assembly 100, so that the plurality of batteries 101 form the overall battery assembly 100. The explosion-proof valve 300 is arranged on the battery 101, and the explosion-proof valve 300 can be damaged under pressure when the battery 101 is unstable due to high temperature and high pressure caused by an accident of the battery 101. The battery 101 can discharge the high-temperature and high-pressure gas or liquid in the battery 101 to the outside through the gas vent 102 arranged on one side of the battery 101. The explosion-proof valve 300 is damaged under pressure, so that the high-temperature and high-pressure gas or liquid in the battery 101 can be discharged from the explosion-proof valve 300. When the battery 101 is in an undesirable state, a channel for discharging the high-temperature and high-pressure gas or liquid in the battery 101 is arranged, which avoids the leakage of the gas or liquid in the battery 101 from the position except the gas vent 102 due to temperature and pressure, avoids affecting and interfering with other batteries 101 in the battery assembly 100 or other components in the explosion-proof battery module 1000, and is beneficial to improving the safety of the explosion-proof battery module 1000. In actual use, the gas or liquid in the battery 101 damages the valve piece 302 in the frame 301 through the gas vent 102, so that the gas or liquid can flow out through the position of the frame 301. At the same time, the compression strip 400 is arranged on the battery assembly 100, the compression strip 400 is formed with a flow guide groove 402, and the flow guide groove 402 is provided with a positioning hole 401 corresponding to the explosion-proof valve 300, so that the explosion-proof valve 300 is in communication with the flow guide groove 402. Therefore, when the high-temperature and high-pressure liquid in the battery 101 flows out, it can flow into the flow guide groove 402 through the explosion-proof valve 300 and the positioning hole 401, and the liquid in the battery 101 is guided to the outside of the battery assembly 100 through the flow guide groove 402, thereby avoiding affecting and damaging the explosion-proof battery module 1000. The above arrangement effectively releases the gas or liquid that may be generated in the battery 101, avoids the potential danger caused by the accumulation of the liquid and gas in the battery 101, and reduces the risk of explosion.

[0028] Specifically, the compression strip 400 can also help to fix and connect the batteries 101 in the battery assembly 100, fasten and position the plurality of batteries 101, and avoid displacement or loosening during use.

[0029] Specifically, since the explosion-proof valve 300 is exposed to the positioning hole 401, the integrity of the appearance of the explosion-proof valve 300 and the state of the explosion-proof valve 300 can be observed intuitively, maintenance and replacement become more convenient and fast, and the maintenance efficiency is improved.

[0030] It should be noted that the flow guide groove 402 can also isolate the positive electrode 103 and the negative electrode 104 to prevent short circuit and other safety problems. The positive electrode 103 and the negative electrode 104 are usually isolated by electrolyte and diaphragm, but in this embodiment, the flow guide groove 402 can isolate the positive electrode 103 and the negative electrode 104 of the battery 101 by physical structure when high-temperature and high-pressure gas or liquid is injected inside the battery 101, to avoid short circuit and further increase safety.

[0031] Reference Figure 3 and Figure 4 The compression strip 400 includes a first bottom plate 403 and two first side walls 404 connected to each other, and the first bottom plate 403 is arranged between the two first side walls 404 to form the flow guide groove 402, and the positioning hole 401 is arranged on the first bottom plate 403.

[0032] The connection of the first bottom plate 403 and the two first side walls 404 forms the flow guide groove 402, which helps to guide the liquid and gas leaked inside the battery assembly 100 to flow out of the battery assembly 100 through the explosion-proof valve 300. Through the design of the flow guide groove 402, the liquid or gas generated inside the battery 101 can be effectively discharged, reducing the risk of explosion. The positioning hole 401 is arranged on the first bottom plate 403 to limit and fix the position of the explosion-proof valve 300, to ensure the accurate position of the explosion-proof valve 300 and avoid its displacement or loosening during use, thereby improving the stability and safety of the overall explosion-proof battery module 1000.

[0033] Specifically, the first bottom plate 403 and the two first side walls 404 are connected to each other to form a stable structure, which can effectively increase the structural strength of the compression strip 400 and further enhance the clamping and positioning effect of the multiple batteries 101. It helps to keep the explosion-proof battery module 1000 stable during use and reduces the possibility of loosening or damage of the assembly due to vibration or external pressure.

[0034] Reference Figure 3 and Figure 4 The explosion-proof battery module 1000 further includes a connecting strip 500, and the compression strip 400 connects the battery assembly 100 through the connecting strip 500. The connecting strip 500 is in the shape of "U", the compression strip 400 is arranged in the connecting strip 500, and a plurality of avoiding grooves 501 corresponding to the positioning hole 401 are arranged on the compression strip 400.

[0035] The "U"-shaped design of the connecting strip 500 enhances the structural strength of the connecting strip 500 itself, and on the other hand, the "U"-shaped structure facilitates the accommodation of the compression strip 400, which can provide certain fixation and support for the compression strip 400, so that the compression strip 400 can be stably installed on the battery assembly 100 through the connecting strip 500. This helps to ensure the firm connection between the various components of the explosion-proof battery module 1000, reducing the risk of loosening or displacement. On the other hand, the "U"-shaped structure design of the connecting strip 500 can prevent the liquid entering the flow guide groove 402 from the battery 101 from leaking out again to some extent, thereby playing a role in preventing leakage of the flow guide groove 402, further improving the safety of the explosion-proof battery module 1000.

[0036] Specifically, the compression strip 400 is provided with relief grooves 501, which are arranged corresponding to the positioning holes 401 for positioning the explosion-proof valve 300, facilitating the positioning and installation between the connecting strip 500, the compression strip 400 and the battery 101, and simplifying the installation process between the three. This design helps to improve the assembly efficiency and reduce errors or problems that may occur during installation.

[0037] Specifically, the combined design of the connecting strip 500 and the compression strip 400 increases the stability of the overall explosion-proof battery module 1000. The supporting effect of the connecting strip 500 and the fixing function of the compression strip 400 together ensure the stability and safety of the explosion-proof battery module 1000 during use.

[0038] Reference Figure 3 and Figure 4 The connecting strip 500 includes a second bottom plate 502 and two second side walls 503 connected to each other, the second bottom plate 502 is arranged between the two second side walls 503, the relief grooves 501 are arranged on the second bottom plate 502, the second bottom plate 502 is arranged between the first bottom plate 403 and the battery assembly 1000, and the first side wall 404 is arranged corresponding to the second side wall 503.

[0039] The structural design of the connecting strip 500 includes the second bottom plate 502 and the two second side walls 503, which provides good structural stability for the connecting strip 500. The second bottom plate 502 is arranged between the two second side walls 503, the second bottom plate 502 is arranged corresponding to the first bottom plate 403, and the second side wall 503 is arranged corresponding to the first side wall 404, which can effectively support the compression strip 400 and fix it on the battery assembly 100, enhancing the stability of the overall connection of the explosion-proof battery module 1000. The second bottom plate 502 is arranged between the first bottom plate 403 and the battery assembly 1000, so it can isolate the battery assembly 100 and the compression strip 400, so that the liquid flowing out of the battery 101 through the explosion-proof valve 300 does not leak into the flow guide groove 402, achieving the effect of preventing leakage.

[0040] Specifically, the first bottom plate 403 is arranged corresponding to the second bottom plate 502, and the first side wall 404 is arranged corresponding to the second side wall 503, so that the positional relationship between the connecting strip 500 and the compression strip 400 is kept correct, and the connection between the two is more closely and stably, improving the stability of the explosion-proof battery module 1000.

[0041] With reference to Figure 3 and Figure 4 , the compression strip 400 further comprises a folded edge 405 arranged at the edge of each first side wall 404, and a plurality of first connecting holes 4051 are arranged on the folded edge 405. The explosion-proof battery module 1000 further comprises a protection plate 600 arranged on the side of the compression strip 400 away from the connecting strip 500, and a second connecting hole 601 corresponding to the first connecting hole 4051 is arranged on the protection plate 600, so that the connecting piece passes through the second connecting hole 601 and the first connecting hole 4051 to connect the folded edge 405 and the protection plate 600.

[0042] The design of the compression strip 400 comprises two folded edges 405 arranged at the edges of the two first side walls 404 and extending, and the first connecting hole 4051 is arranged on the folded edge 405. The first connecting hole 4051 is used for corresponding connection with the second connecting hole 601 arranged on the protection plate 600 through the connecting piece, so as to install the protection plate 600 to the compression strip 400. The protection plate 600 is used to form a relatively closed space with the flow guide groove 402, so as to avoid affecting and damaging other batteries 101 or other components when the explosion-proof valve 300 leaks the gas and liquid inside the battery 101, and improve the protection of the battery assembly 100.

[0043] The protection plate 600 and the second connecting hole 601 arranged on the protection plate 600 can be effectively fixed on the two folded edges 405, thereby increasing the stability of the connection between the protection plate 600 and the compression strip 400. The protection plate 600 is arranged on the side of the compression strip 400 away from the connecting strip 500, and plays a protective role for the battery assembly 100. The protection plate 600 is provided with the second connecting hole 601, and the second connecting hole 601 is arranged corresponding to the first connecting hole 4051. By connecting the first connecting hole 4051 and the second connecting hole 601, the protection plate 600 can effectively protect the compression strip 400 and reduce the risk of external damage.

[0044] Specifically, the second connecting hole 601 and the first connecting hole 4051 are connected by the connecting piece. This design makes the connection between the connecting strip 500, the protection plate 600 and the compression strip 400 more convenient and fast, improves the assembly efficiency among the three, and reduces the possible connection errors or problems.

[0045] With reference to Figure 5The connecting piece 200 includes two connecting portions 201 and a supporting portion 202 arranged between the two connecting portions 201. The two connecting portions 201 are respectively connected to the positive electrode 103 and / or the negative electrode 104 of two adjacent batteries 101.

[0046] The connecting piece 200 is connected to the positive electrode 103 and / or the negative electrode 104 of two adjacent batteries 101 through the two connecting portions 201, so as to realize series connection or parallel connection between the two adjacent batteries 101. When the two connecting portions 201 are connected to the positive electrode 103 of one battery 101 and the negative electrode 104 of the other battery 101, the two batteries 101 are in series connection. When the two connecting portions 201 are connected to the positive electrode 103 of two adjacent batteries 101, the two batteries 101 are in parallel connection. The design ensures stable electrical connection between the two batteries 101, which helps to maintain the normal working state of the battery assembly 100. The supporting portion 202 is arranged between the two connecting portions 201, which supports the two connecting portions 201 on both sides of the supporting portion 202. The design of the supporting portion 202 helps to maintain the stability of the connecting portion 201 and the whole connecting piece 200, avoiding the movement or loosening of the connecting portion 201 due to external vibration or other factors, so as to ensure the reliability of the connection.

[0047] Specifically, the connecting piece 200 is connected to the positive electrode 103 and / or the negative electrode 1104 of two adjacent batteries 101, which ensures that the circuit between the batteries 101 can be effectively established, so as to realize the charge transfer and power output between the batteries 101.

[0048] Reference Figure 2 And Figure 6 The explosion-proof battery module 1000 further includes a housing 700, and a cavity is formed in the housing 700. A partition plate 701 is arranged in the cavity, and the partition plate 701 divides the cavity into a first mounting area 702 and a second mounting area 703. The first mounting area 702 and the second mounting area 703 are arranged in layers, and the battery assembly 100 is arranged in the second mounting area 703.

[0049] The partition plate 701 divides the cavity into different mounting areas, which helps to isolate the battery assembly 100 and other components, so as to provide certain protection and safety for the battery assembly 100 and other components. The first mounting area 702 and the second mounting area 703 are arranged in layers, and by placing the battery assembly 100 in the second mounting area 703, the battery assembly 100 can be effectively isolated in space, reducing the interference with other components and reducing the potential safety risk.

[0050] Specifically, the cavity is divided into the first mounting area 702 and the second mounting area 703 and arranged in layers, which helps to make more effective use of space.

[0051] Specifically, the shell 700 provides additional structural support for the explosion-proof battery module 1000, which helps to enhance the stability of the entire explosion-proof battery module 1000. The structure formed by the partition plate 701 in the cavity can also increase the overall strength of the explosion-proof battery module 1000, reducing the impact of vibration and external impact on the explosion-proof battery module 1000.

[0052] Specifically, by separating the cavity into the first mounting area 702 and the second mounting area 703 through the partition plate 701, it can help to optimize the thermal management of the explosion-proof battery module 1000. For example, a heat sink or other thermal management device can be installed in the first mounting area 702 to ensure that the battery assembly 100 maintains an appropriate temperature during operation.

[0053] Referring to Figure 3 , Figure 4 and Figure 6 , the opposite ends of the first bottom plate 403 respectively extend out the extension plates 406, which correspond to the opposite sides of the battery assembly 100 respectively, and the extension plates 406 are fixedly connected with the shell 700.

[0054] The extension plates 406 correspond to the opposite sides of the battery assembly 100 respectively, which can increase the contact area between the compression strip 400 and the battery assembly 100, and improve the stability of the connection between the compression strip 400 and the battery assembly 100. Through the connection of the extension plates 406 with the opposite sides of the battery assembly 100, the support and fixation of the compression strip 400 on the battery assembly 100 can be enhanced, reducing movement and deformation under vibration or external impact, and further enhancing the stability of the overall structure of the explosion-proof battery module 1000.

[0055] Specifically, the extension plates 406 extend from the two ends of the first bottom plate 403, so that the connection points are distributed on the opposite sides of the battery assembly 100, which helps to evenly distribute the connection force between the compression strip 400 and the battery assembly 100, to reduce the possibility of local stress concentration, improve the uniformity of the connection, and reduce the risk of damage caused by uneven connection.

[0056] Specifically, the extension plates 406 are fixedly connected with the shell 700, so that the connection strip 500 fixes and limits the battery assembly 100 and the shell 700 through the extension plates 406. On the one hand, it can enhance the structural stability of the battery assembly 100 in the shell, avoid shaking or displacement during use, and ensure its safety. On the other hand, the extension plates 406 are directly fixedly connected with the shell 700, which can reduce additional connection components, simplify assembly steps, reduce assembly cost, and improve production efficiency.

[0057] Referring to Figure 6 , the battery assembly 100 further comprises a battery management module 800, which is arranged in the first mounting area 702.

[0058] The battery management module 800 is arranged in the first mounting area 702. The battery management module 800 can include circuit boards or heat sinks and other components to help integrate the various components of the battery assembly 100 and improve the integration of the overall explosion-proof battery module 1000. For example, the circuit board can facilitate control of the battery assembly 100, and the circuit board can receive and feedback information of the battery assembly 100, which can help users quickly determine the condition and state of the battery assembly 100. For another example, the heat sink arranged in the first mounting area 702 can help improve the heat dissipation effect of the battery assembly 100, which can help optimize the thermal management of the explosion-proof battery module 1000, avoid the impact of high temperature on the battery 101, effectively control the temperature of the battery assembly 100, and improve the performance and stability of the explosion-proof battery module 1000. The above arrangement improves the reliability and stability of the explosion-proof battery module 1000.

[0059] Specifically, arranging the battery management module 800 in the first mounting area 702 can provide additional protection and isolation for the battery management module 800, reducing the risk of external environmental interference and damage to the battery management module 800. This design helps protect the battery management module 800 from external vibrations, moisture, or other adverse factors, extending the service life of the battery management module 800. Arranging the battery management module 800 in the first mounting area 702 makes maintenance more convenient. If the battery management module 800 needs to be repaired or replaced, the first mounting area 702 can be directly accessed, simplifying the maintenance process and reducing maintenance time and cost.

[0060] Reference Figure 6 The explosion-proof battery module 1000 further includes a pulley set 900 arranged at the bottom of the shell 700.

[0061] Arranging the pulley set 900 at the bottom of the shell 700 helps improve the mobility of the explosion-proof battery module 1000. Through the pulley set 900, the operator can easily move the explosion-proof battery module 1000 from one place to another, reducing the labor intensity of carrying and improving work efficiency.

[0062] In this embodiment, the pulley set 900 is arranged corresponding to the second mounting area 703, which helps optimize the weight of the explosion-proof battery module 1000, so that the second mounting area 703 with a heavier weight is located at the bottom of the explosion-proof battery module 1000, ensuring the stability and safety of the explosion-proof battery module 1000 during movement. In addition, the pulley set 900 can also be arranged on the side of the explosion-proof battery module 1000, i.e., the explosion-proof battery module 1000 is placed horizontally for movement.

[0063] The pulley block 900 can make the movement and operation more convenient and reduce the difficulty in the maintenance process on the one hand. On the other hand, the operation safety can be improved. The operator can stably move the battery assembly 100 through the pulley block 900, avoid accidental injury caused by improper handling, and improve the safety of the workplace.

[0064] It should be understood that the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them. For those skilled in the art, the technical solutions recorded in the above embodiments can be modified, or some technical features can be replaced by equivalents. All these modifications and replacements shall belong to the protection scope of the appended claims of the present application.

Claims

1. An explosion-proof battery module, characterized by comprising: The application relates to a battery module. The battery module comprises a battery assembly, a connecting strip, an explosion-proof valve and a pressing strip. The battery assembly comprises a plurality of batteries, one side of the battery being provided with a gas leakage port, a positive electrode and a negative electrode. The connecting strip connects two adjacent batteries in series or parallel through the positive electrode and the negative electrode. The explosion-proof valve is arranged at the gas leakage port and comprises a frame and a valve plate.

2. The explosion-proof battery module according to claim 1, characterized in that The pressing strip is arranged on the side of the battery assembly provided with the gas leakage port and is arranged along the height direction of the battery assembly.

3. The explosion-proof battery module of claim 2, wherein, The pressing strip comprises a first bottom plate and two first side walls connected with each other.

4. The explosion-proof battery module of claim 3, wherein, The first bottom plate is arranged between the two first side walls to form the flow guide groove.

5. The explosion-proof battery module of claim 2, wherein, The explosion-proof battery module further comprises a connecting strip.

6. The explosion-proof battery module of claim 1, wherein, The connecting strip is arranged in the pressing strip and is provided with a plurality of avoiding grooves corresponding to the positioning holes.

7. The explosion-proof battery module of claim 2, wherein The connecting strip comprises a second bottom plate and two second side walls connected with each other.

8. The explosion-proof battery module of claim 7, wherein, The second bottom plate is arranged between the two second side walls.

9. The explosion-proof battery module of claim 7, wherein, The avoiding grooves are arranged on the second bottom plate.

10. The explosion-proof battery module of claim 7, wherein, The second bottom plate is arranged between the first bottom plate and the battery assembly. The first side wall is arranged corresponding to the second side wall. The pressing strip further comprises a folding edge arranged on the edge of each first side wall. The folding edge is provided with a plurality of first connecting holes. The explosion-proof battery module further comprises a protection plate. The protection plate is provided with a second connecting hole corresponding to the first connecting hole. The folding edge and the protection plate are connected through the second connecting hole and the first connecting hole. The connecting strip comprises two connecting parts and a supporting part arranged between the two connecting parts. The two connecting parts are connected with the positive electrode and / or the negative electrode of two adjacent batteries respectively. The explosion-proof battery module further comprises a shell. The shell is provided with a cavity. The cavity is divided into a first mounting area and a second mounting area by a partition plate. The first mounting area and the second mounting area are arranged in layers. The battery assembly is arranged in the second mounting area. The opposite ends of the first bottom plate are respectively extended to an extension plate. The extension plate is arranged corresponding to the opposite sides of the battery assembly. The extension plate is fixedly connected with the shell. The explosion-proof battery module further comprises a battery management module. The battery management module is arranged in the first mounting area. The explosion-proof battery module further comprises a pulley block. The pulley block is arranged at the bottom of the shell.

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