Battery box, battery and electric equipment

Abstract

The utility model provides a battery box, a battery and electric equipment. The battery box comprises a base, a supporting assembly and a support, the supporting assembly is connected to a bottom plate of the base and protrudes out of the bottom plate, the support is connected to the end, away from the bottom plate, of the supporting assembly, and the supporting assembly is used for supporting the support so that a pressure relief channel can be formed between the support and the bottom plate. According to the battery box, the support is supported by the supporting assembly, the gravity of the battery cell can be transmitted to the supporting assembly, the support can be effectively prevented from deforming under the gravity effect of the battery cell, the mounting stability and the structural stability of the support are improved, meanwhile, the pressure relief channel is prevented from being influenced, and it is guaranteed that when the battery is subjected to thermal runaway, the battery cell cannot be damaged. And high-temperature gas can be quickly discharged through the pressure relief channel, so that the safety of the battery is ensured.

Description

Technical Field

[0001] This application relates to the field of battery technology, specifically to battery boxes, batteries, and electrical equipment. Background Technology

[0002] Batteries are widely used in energy storage systems, transportation, and consumer electronics. A battery typically consists of a support frame and multiple battery cells, with the support frame holding the cells in place.

[0003] In related technologies, the structural stability of stents still needs to be improved. Utility Model Content

[0004] The embodiments of this application provide a battery box, battery, and electrical equipment, which can improve the technical problem of the structural stability of the support structure.

[0005] In a first aspect, embodiments of this application provide a battery box, comprising:

[0006] Base;

[0007] A support assembly, connected to the base plate of the base and protruding from the base plate;

[0008] A bracket is connected to the end of the support assembly opposite to the base plate. The support assembly is used to support the bracket so that a pressure relief channel is formed between the bracket and the base plate.

[0009] In one embodiment, the support assembly includes a plurality of support ribs arranged side by side, with a first end of the support ribs fixedly connected to the base plate and a second end of the support ribs abutting against the bracket.

[0010] In one embodiment, the base, the bracket, and each pair of adjacent support ribs form the pressure relief channel.

[0011] In one embodiment, the plurality of support ribs are evenly spaced.

[0012] In one embodiment, the support rib is sealed to the bracket.

[0013] In one embodiment, at least a portion of the support ribs are formed with connecting channels for connecting two adjacent pressure relief channels.

[0014] In one embodiment, the connection channel includes a through hole or connection notch formed in the support rib.

[0015] In one embodiment, the support component is integrally formed with the base.

[0016] In one embodiment, one of the bracket and the base has a sealing portion located at one end of the pressure relief channel, and the other of the bracket and the base is sealed to the sealing portion to seal one end of the pressure relief channel.

[0017] Secondly, embodiments of this application provide a battery, including a battery cell and the aforementioned battery case, wherein the battery cell is mounted on the side of the bracket opposite to the pressure relief channel.

[0018] Thirdly, embodiments of this application provide an electrical device including the battery described above.

[0019] The beneficial effects of the embodiments of this application are as follows:

[0020] In the embodiments of this application, the support component can support the bracket, effectively supporting it and preventing deformation or displacement of the bracket relative to the base, thereby improving the installation stability and structural stability of the bracket. Simultaneously, the support component can separate the bracket and the base, creating a pressure relief channel between them. When the battery experiences thermal runaway, high-temperature gas can be discharged through this channel, thus relieving pressure on the battery.

[0021] By using support components to support the bracket, the weight of the battery cell can be transferred to the support components, which can effectively prevent the bracket from deforming under the weight of the battery cell, improve the installation stability and structural stability of the bracket, and at the same time avoid affecting the pressure relief channel. This ensures that when the battery experiences thermal runaway, high-temperature gas can be quickly discharged through the pressure relief channel, thus ensuring the safety of the battery. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is one of the structural schematic diagrams of the battery box provided in the embodiments of this application;

[0024] Figure 2 This is provided by the embodiments of this application. Figure 1 Enlarged structural diagram at point A;

[0025] Figure 3 This is a second schematic diagram of the battery box provided in an embodiment of this application;

[0026] Figure 4 This is provided by the embodiments of this application. Figure 3Enlarged structural diagram at point B;

[0027] Figure 5 This is a schematic diagram of the structure of the base provided in an embodiment of this application;

[0028] Figure 6 This is provided by the embodiments of this application. Figure 5 Enlarged schematic diagram of the structure at point C;

[0029] Figure 7 This is a schematic diagram of the structure of the bracket provided in an embodiment of this application;

[0030] Figure 8 This is provided by the embodiments of this application. Figure 7 Enlarged structural diagram at point D;

[0031] Figure 9 This is one of the structural schematic diagrams of the battery provided in the embodiments of this application;

[0032] Figure 10 This is provided by the embodiments of this application. Figure 9 Enlarged structural diagram at point E;

[0033] Figure 11 This is a second schematic diagram of the battery structure provided in the embodiments of this application;

[0034] Figure 12 This is provided by the embodiments of this application. Figure 11 Enlarged structural diagram at point F;

[0035] Figure 13 This is the third schematic diagram of the battery structure provided in the embodiments of this application;

[0036] Figure 14 This is a cross-sectional view of the battery provided in an embodiment of this application;

[0037] Figure 15 This is provided by the embodiments of this application. Figure 14 A magnified schematic diagram of the structure at point G. Detailed Implementation

[0038] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. In addition, it should be understood that the specific embodiments described herein are only for illustration and explanation of this application and are not intended to limit this application. In this application, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, specifically the drawing directions in the accompanying drawings; while "inner" and "outer" refer to the outline of the device.

[0039] The following is combined Figures 1 to 15 This application describes the battery box, battery, and electrical device.

[0040] According to the embodiments of the first aspect of this application, see [link / reference]. Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6 The battery box includes a base 1, a support component 5 and a bracket 2. The support component 5 is connected to the base plate 12 of the base 1 and protrudes from the base plate 12. The bracket 2 is connected to the end of the support component 5 away from the base plate 12. The support component 5 is used to support the bracket 2 so that a pressure relief channel 3 is formed between the bracket 2 and the base plate 12.

[0041] Understandably, the support component 5 provides support for the bracket 2, effectively supporting it and preventing deformation or displacement of the bracket 2 relative to the base 1, thus improving the installation and structural stability of the bracket 2. Simultaneously, the support component 5 separates the bracket 2 from the base 1, creating a pressure relief channel 3 between them. When the battery experiences thermal runaway, high-temperature gas can be released through the pressure relief channel 3, thus relieving pressure on the battery.

[0042] It is understandable that the bracket 2 is used to mount the battery cell 6, meaning that the bracket 2 will be affected by the gravity of the battery cell 6. In related technologies, the bracket 2 is directly connected to the base 1. Under the gravity of the battery cell 6, the bracket 2 is prone to deformation towards the pressure relief channel 3, which can lead to the pressure relief channel 3 being squeezed, thus affecting the pressure relief speed. When the battery experiences thermal runaway, the high-temperature gases generated by the battery may be difficult to release quickly. This application utilizes the support component 5 to support the bracket 2. The gravity of the battery cell 6 can be transferred to the support component 5, effectively preventing the bracket 2 from deforming under the gravity of the battery cell 6. This avoids affecting the pressure relief channel 3, ensuring that when the battery experiences thermal runaway, the high-temperature gases can be quickly released through the pressure relief channel 3, thus ensuring battery safety.

[0043] In some embodiments, see Figure 1 , Figure 2 , Figure 3 and Figure 4 The battery box includes a base 1 and a bracket 2. The bracket 2 is connected to the base 1, and the bracket 2 and the base 1 form a pressure relief channel 3.

[0044] One of the bracket 2 and the base 1 has a sealing part 4, which is located at one end of the pressure relief channel 3. The other of the bracket 2 and the base 1 is sealed to the sealing part 4 to seal one end of the pressure relief channel 3.

[0045] According to the battery box of this application embodiment, the bracket 2 and the base 1 are connected together, so that the bracket 2 and the base 1 form a pressure relief channel 3. When the battery experiences thermal runaway, high-temperature gas can be discharged through the pressure relief channel 3 to relieve the pressure on the battery. At the same time, one end of the pressure relief channel 3 is blocked by the sealing part 4, so that the pressure relief channel 3 is only open at one end, making the pressure relief channel 3 a unidirectional pressure relief channel 3. The high-temperature gas generated when the battery experiences thermal runaway can only flow in one direction along the pressure relief channel 3, which can prevent the high-temperature gas from flowing bidirectionally along the pressure relief channel 3. In other words, this application makes the pressure relief channel 3 a unidirectional pressure relief channel by using the sealing part 4. By placing the electrical equipment on the side of the sealing part 4 away from the pressure relief channel 3, the high-temperature gas generated when the battery experiences thermal runaway can be effectively prevented from spreading to the location of the electrical equipment, reducing the impact of battery thermal runaway on the electrical equipment.

[0046] Understandably, in related technologies, the pressure relief channel 3 has a bidirectional flow structure, meaning that high-temperature gas can flow through both ends of the pressure relief channel 3. Consequently, regardless of which side of the pressure relief channel 3 the electrical equipment is located on, when the battery experiences thermal runaway, the high-temperature gas will spread to the location of the electrical equipment, causing significant impact and even damage. This application, however, seals one end of the pressure relief channel 3 with the sealing part 4, preventing the high-temperature gas generated during battery thermal runaway from flowing simultaneously to both ends of the pressure relief channel 3. By placing the electrical equipment on the side of the sealing part 4 away from the pressure relief channel 3, the high-temperature gas will flow away from the electrical equipment, preventing it from spreading to the location of the electrical equipment and effectively reducing the impact of the high-temperature gas generated during battery thermal runaway on the electrical equipment.

[0047] In some examples, the base 1 is, for example, an aluminum profile base, and the bracket 2 is, for example, a plastic bracket.

[0048] In some embodiments, both the bracket 2 and the base 1 have a sealing portion 4, and the sealing portion 4 of the bracket 2 is sealed to the sealing portion 4 of the base 1.

[0049] It is understandable that the sealing part 4 of the bracket 2 and the sealing part 4 of the base 1 cooperate to block one end of the pressure relief channel 3, making the pressure relief channel 3 a one-way pressure relief channel 3. Then, electrical equipment can be installed on the side of the sealing part 4 away from the pressure relief channel 3, which can prevent high temperature gas from spreading to the location of the electrical equipment and effectively reduce the impact of high temperature gas generated during battery thermal runaway on the electrical equipment.

[0050] It is understandable that the sealing part 4 of the bracket 2 and the sealing part 4 of the base 1 are sealed together, so that gas cannot pass through the connection between the sealing part 4 of the bracket 2 and the sealing part 4 of the base 1, thus preventing the high-temperature gas generated during battery thermal runaway from flowing to the electrical equipment through the connection between the sealing part 4 of the bracket 2 and the sealing part 4 of the base 1.

[0051] In some embodiments, the sealing portion 4 of the bracket 2 is sealed to the base 1.

[0052] It is understandable that the bracket 2 has a sealing part 4, and the sealing part 4 cooperates with the base 1 to seal one end of the pressure relief channel 3, making the pressure relief channel 3 a one-way pressure relief channel 3. Then, electrical equipment can be installed on the side of the sealing part 4 away from the pressure relief channel 3, which can prevent high temperature gas from spreading to the location of the electrical equipment and effectively reduce the impact of high temperature gas generated during battery thermal runaway on the electrical equipment.

[0053] Understandably, the sealing part 4 of the bracket 2 is sealed to the base 1, so that gas cannot pass through the connection between the sealing part 4 of the bracket 2 and the base 1, thus preventing the high-temperature gas generated during battery thermal runaway from flowing to the electrical equipment through the connection between the sealing part 4 of the bracket 2 and the base 1.

[0054] In some embodiments, the sealing portion 4 of the base 1 is sealed to the bracket 2.

[0055] It is understandable that the base 1 has a sealing part 4, and the sealing part 4 cooperates with the bracket 2 to seal one end of the pressure relief channel 3, making the pressure relief channel 3 a one-way pressure relief channel 3. Then, electrical equipment can be installed on the side of the sealing part 4 away from the pressure relief channel 3, which can prevent high temperature gas from spreading to the location of the electrical equipment and effectively reduce the impact of high temperature gas generated during battery thermal runaway on the electrical equipment.

[0056] Understandably, the sealing part 4 of the base 1 is sealed to the bracket 2, preventing gas from passing through the connection between the sealing part 4 of the base 1 and the bracket 2, thus preventing the high-temperature gas generated during battery thermal runaway from flowing to the electrical equipment through the connection between the sealing part 4 of the base 1 and the bracket 2.

[0057] In some embodiments, the sealing portion 4 of the bracket 2 is sealed to the base 1, and at the same time, the sealing portion 4 of the base 1 is sealed to the bracket 2.

[0058] It is understandable that both the bracket 2 and the base 1 have a sealing part 4. The sealing part 4 of the bracket 2 and the base 1 can seal one end of the pressure relief channel 3 in a sealed fit. The sealing part 4 of the base 1 and the bracket 2 can also seal one end of the pressure relief channel 3 in a sealed fit, thus achieving double sealing of one end of the pressure relief channel 3 and ensuring the sealing effect of the pressure relief channel 3.

[0059] In some embodiments, see Figure 2 , Figure 4 , Figure 5 and Figure 6 The base 1 has a sealing groove 11, and the sealing part 4 is inserted into the sealing groove 11.

[0060] Understandably, inserting the sealing part 4 into the sealing groove 11 allows the sealing part 4 to be positioned within the sealing groove 11, preventing it from shifting under the influence of high-temperature and high-pressure gas generated during battery thermal runaway. This improves the installation stability of the sealing part 4, allowing it to stably seal the pressure relief channel 3. Consequently, the high-temperature gas generated during battery thermal runaway cannot flow simultaneously to both ends of the pressure relief channel 3. Furthermore, by placing the electrical equipment on the side of the sealing part 4 away from the pressure relief channel 3, the high-temperature gas will flow away from the electrical equipment, preventing it from spreading to the location of the electrical equipment and effectively reducing the impact of the high-temperature gas generated during battery thermal runaway on the electrical equipment.

[0061] Specifically, the battery box also includes a seal, which is located between the sealing part 4 and the groove wall of the sealing groove 11.

[0062] Understandably, the seal can improve the sealing performance between the sealing part 4 and the sealing groove 11, preventing gas from flowing from the sealing part 4 and the sealing groove 11 to the electrical equipment. This can prevent the high-temperature gas generated during battery thermal runaway from flowing to the electrical equipment through the sealing part 4 and the sealing groove 11, thus preventing the high-temperature gas from spreading to the location of the electrical equipment and effectively reducing the impact of the high-temperature gas generated during battery thermal runaway on the electrical equipment.

[0063] In some embodiments, the sealing part 4 is fixedly connected to the base 1 by welding.

[0064] It is understandable that fixing the sealing part 4 and the base 1 by welding improves the connection stability between the sealing part 4 and the base 1.

[0065] It is understandable that fixing the sealing part 4 and the base 1 by welding can improve the sealing performance of the connection between the sealing part 4 and the base 1, prevent gas from flowing from the connection between the sealing part 4 and the base 1 to the electrical equipment, and thus prevent the high-temperature gas generated during battery thermal runaway from flowing to the electrical equipment through the connection between the sealing part 4 and the base 1. This can prevent the high-temperature gas from spreading to the location of the electrical equipment and effectively reduce the impact of the high-temperature gas generated during battery thermal runaway on the electrical equipment.

[0066] In some embodiments, see Figure 2 , Figure 4 , Figure 5 and Figure 6 The battery box also includes a support component 5, which is connected between the bracket 2 and the base 1. The support component 5, the bracket 2 and the base 1 form a pressure relief channel 3, and the extension direction of the pressure relief channel 3 is the same as the extension direction of the support component 5.

[0067] It is understandable that the support component 5 separates the bracket 2 and the base 1, so that the support component 5, bracket 2 and base 1 can form a pressure relief channel 3. When the battery experiences thermal runaway, high-temperature gas can be discharged through the pressure relief channel 3 to relieve the pressure on the battery.

[0068] In some embodiments, see Figure 2 , Figure 4 , Figure 5 and Figure 6 The support component 5 includes a plurality of support ribs 51 arranged side by side. The first end of the support rib 51 is fixedly connected to the base plate 12, and the second end of the support rib 51 abuts against the bracket 2.

[0069] It is understandable that the support rib 51 is fixedly connected to the base plate 12, and the bracket 2 abuts against the end of the support rib 51 away from the base plate 12, so that the support rib 51 can support the base plate 12, and at the same time, a pressure relief channel 3 is formed between the bracket 2 and the base plate 12.

[0070] It is understandable that if multiple support ribs 51 are arranged side by side, the multiple support ribs 51 can divide the space between the bracket 2 and the base plate 12 into multiple subspaces, that is, the multiple support ribs 51 can make multiple pressure relief channels 3 form between the bracket 2 and the base plate 12.

[0071] In some embodiments, see Figure 12 The base 1, the bracket 2, and each pair of adjacent support ribs 51 form a pressure relief channel 3.

[0072] It is understandable that if two adjacent support ribs 51 are arranged opposite each other, then each pair of adjacent support ribs 51, base 1 and bracket 2 can form a pressure relief channel 3. If there are multiple support ribs 51, then multiple pressure relief channels 3 can be formed between base 1 and bracket 2.

[0073] In some examples, multiple rows of battery cells 6 are installed on the side of the bracket 2 opposite to the pressure relief channel 3. Each row of battery cells 6 corresponds one-to-one with a pressure relief channel 3, meaning each row of battery cells 6 has a corresponding pressure relief channel 3. When different pressure relief channels 3 are not interconnected, if thermal runaway occurs in one row of battery cells 6, the high-temperature gas will not flow to the pressure relief channels 3 of other rows of battery cells 6, reducing the impact on other rows of battery cells 6. When different pressure relief channels 3 are interconnected, if thermal runaway occurs in one row of battery cells 6, the high-temperature gas can be discharged through all pressure relief channels 3, increasing the pressure relief rate.

[0074] In some embodiments, the multiple support ribs 51 are evenly spaced, so that the support provided by the multiple support ribs 51 to the bracket 2 is also uniform, and the consistency of different pressure relief channels 3 is improved.

[0075] In some embodiments, the support rib 51 is sealed to the bracket 2.

[0076] Understandably, the sealed connection between the support rib 51 and the bracket 2 improves the sealing performance between them, preventing the high-temperature gas generated by the thermal runaway of the battery cell 6 from flowing to other locations through the connection between the support rib 51 and the bracket 2, thus ensuring that the high-temperature gas flows along the pressure relief channel 3.

[0077] In some embodiments, at least a portion of the support rib 51 forms a connecting channel, which is used to connect two adjacent pressure relief channels 3.

[0078] Understandably, the bracket 2 is used to install the battery cell 6. When the battery cell 6 corresponding to one of the two interconnected pressure relief channels 3 experiences thermal runaway, the high-temperature gas generated by the thermal runaway can be discharged through at least two pressure relief channels 3, thereby increasing the pressure relief speed.

[0079] In some embodiments, the connection channel includes a through hole or connection notch formed in the support rib.

[0080] In some embodiments, the support component 5 is integrally formed with the base 1, thereby improving the connection strength between the support component 5 and the base 1 and ensuring the sealing performance at the connection between the support component 5 and the base 1.

[0081] In some embodiments, see Figure 2 , Figure 4 , Figure 5 and Figure 6The support component 5 has a snap-fit ​​notch 52, and the sealing part 4 passes through the snap-fit ​​notch 52 and is inserted into the sealing groove 11.

[0082] It is understandable that by forming a snap-fit ​​notch 52 at the support component 5, the support component 5 is prevented from obstructing the sealing part 4, so that the sealing part 4 can pass through the snap-fit ​​notch 52 and be inserted into the sealing groove 11.

[0083] In some examples, the sealing part 4 is sealed to the wall of the snap-fit ​​notch 52 to improve the sealing performance between the sealing part 4 and the support assembly 5, and to prevent high-temperature gas generated during battery thermal runaway from flowing to the electrical equipment through the connection between the sealing part 4 and the support assembly 5.

[0084] In some embodiments, see Figure 7 and Figure 8 The bracket 2 includes a first side and a second side arranged opposite to each other. The first side of the bracket 2 and the base 1 form a pressure relief channel 3. The bracket 2 has a mounting boss 21, which protrudes from the second side of the bracket 2. The mounting boss 21 has an explosion-proof structure 211 and is used to install the battery cell 6.

[0085] It is understandable that by forming an explosion-proof structure 211 on the mounting boss 21, when the battery cell 6 experiences thermal runaway, the high-temperature gas generated by the battery cell 6 can cause the explosion-proof structure 211 to break, allowing the high-temperature gas to flow into the pressure relief channel 3, so as to release the high-temperature gas through the pressure relief channel 3 and relieve the pressure on the battery.

[0086] It is understandable that the mounting boss 21 protrudes from the second side of the bracket 2. If the battery cell 6 is installed on the mounting boss 21, the battery cell 6 will also protrude from the second side of the bracket 2, thereby increasing the distance between the battery cell 6 and the pressure relief channel 3.

[0087] For details, please refer to Figure 7 and Figure 8 An exhaust chamber 212 is formed on the side of the mounting boss away from the battery cell 6, and the exhaust chamber 212 is connected to the pressure relief channel 3.

[0088] It is understandable that when cell 6 experiences thermal runaway, the high-temperature gas generated by cell 6 can flow into the pressure relief channel 3 through the exhaust chamber 212 after causing the explosion-proof structure 211 to break.

[0089] It is understandable that the mounting boss 21 protrudes from the second side of the bracket 2, and by forming an exhaust chamber 212 with the pressure relief channel 3 on the mounting boss 21, the total amount of gas that can be contained in the space between the bracket 2 and the base 1 is increased.

[0090] In some embodiments, the explosion-proof structure 211 is at least partially aligned with the pressure relief channel 3.

[0091] It is understandable that when cell 6 experiences thermal runaway, the high-temperature gas generated by cell 6 causes the explosion-proof structure 211 to break, allowing the high-temperature gas to flow into the pressure relief channel 3. By setting at least a portion of the explosion-proof structure 211 to face the pressure relief channel 3, at least a portion of the high-temperature gas generated by cell 6 can flow directly into the pressure relief channel 3, ensuring the high-temperature gas emission rate and thus ensuring the battery pressure relief rate.

[0092] In some embodiments, see Figure 7 and Figure 8 The explosion-proof structure 211 includes an explosion-proof groove 2111, the opening of which faces away from the pressure relief channel 3.

[0093] It is understandable that the thickness of the explosion-proof groove 2111 is relatively thin, and the opening of the explosion-proof groove 2111 faces the battery cell 6. When the battery cell 6 experiences thermal runaway, the high-temperature gas generated by the battery cell 6 will flow directly to the explosion-proof groove 2111 and impact the explosion-proof groove 2111, causing the explosion-proof groove 2111 to break. This allows the high-temperature gas to flow into the pressure relief channel 3 to achieve pressure relief.

[0094] In some embodiments, see Figure 7 and Figure 8 The mounting boss 21 includes a protrusion 213 and a receiving portion 214. The protrusion 213 protrudes from the second side of the bracket 2, and the receiving portion 214 is connected to the protrusion 213. The explosion-proof structure 211 includes an explosion-proof notch 2112 formed at the connection between the receiving portion 214 and the protrusion 213. The opening of the explosion-proof notch 2112 faces the pressure relief channel 3.

[0095] It is understandable that the thickness at the explosion-proof notch 2112 is relatively thin. When the mounting boss 21 is impacted by the high-temperature gas generated by the thermal runaway of the battery cell 6, the explosion-proof notch 2112 will break, causing the receiving part 214 to separate from the protrusion 213, and the high-temperature gas can flow into the pressure relief channel 3 to achieve pressure relief.

[0096] When the receiving part 214 is impacted by high-temperature gas, the explosion-proof notch 2112 is subjected to a force toward the pressure relief channel 3. Since the opening of the explosion-proof notch 2112 faces the pressure relief channel 3, the explosion-proof notch 2112 is more likely to break.

[0097] It is understandable that since the diameter of the battery cell 6 is greater than or equal to the diameter of the mounting boss 21, the protrusion 213 will contact the battery cell 6 and support it. When the explosion-proof notch 2112 breaks and the receiving part 214 separates from the protrusion 213, the battery cell 6 will not fall into the pressure relief channel 3 under the support of the protrusion 213.

[0098] In some embodiments, the cross-sectional area of ​​the explosion-proof notch 2112 gradually increases along the direction from the battery cell 6 to the pressure relief channel 3, which is beneficial for the explosion-proof notch 2112 to break when the receiving part 214 is impacted by high-temperature gas.

[0099] According to the embodiments of the second aspect of this application, see Figure 9 , Figure 10 , Figure 13 , Figure 14 and Figure 15 The battery includes cell 6 and the aforementioned battery box. Cell 6 is mounted on the side of bracket 2 away from pressure relief channel 3.

[0100] According to the battery embodiment of this application, the bracket 2 and the base 1 are connected together, forming a pressure relief channel 3. When the battery experiences thermal runaway, high-temperature gas can be discharged through the pressure relief channel 3, thus relieving pressure on the battery. Simultaneously, one end of the pressure relief channel 3 is blocked by the sealing part 4, making the pressure relief channel 3 only open at one end. This ensures that the pressure relief channel 3 is a unidirectional pressure relief channel, preventing the high-temperature gas generated during battery thermal runaway from flowing in only one direction. In other words, this application makes the pressure relief channel 3 unidirectional by using the sealing part 4. By placing the electrical equipment on the side of the sealing part 4 away from the pressure relief channel 3, the high-temperature gas generated during battery thermal runaway can be effectively prevented from spreading to the location of the electrical equipment, reducing the impact of battery thermal runaway on the electrical equipment.

[0101] This application seals one end of the pressure relief channel 3 by using the sealing part 4, so that the high-temperature gas generated during battery thermal runaway cannot flow to both ends of the pressure relief channel 3 at the same time. Then, the electrical equipment is placed on the side of the sealing part 4 away from the pressure relief channel 3, and the high-temperature gas will flow away from the electrical equipment, which can prevent the high-temperature gas from spreading to the location of the electrical equipment and effectively reduce the impact of the high-temperature gas generated during battery thermal runaway on the electrical equipment.

[0102] In some embodiments, see Figure 11 and Figure 12 The battery cell 6 is spaced apart from the base 1, and foaming agent is filled between the battery cell 6 and the base 1.

[0103] It is understandable that the battery cell 6 and the base 1 are spaced apart, that is, there is a gap between the battery cell 6 and the base 1, so that foaming agent can be filled between the battery cell 6 and the base 1 to achieve fixation.

[0104] In some embodiments, two adjacent battery cells 6 are spaced apart, and a foaming agent is filled between the two adjacent battery cells 6.

[0105] Understandably, see Figure 11 and Figure 12 The adjacent two cells 6 are spaced apart, that is, there is a gap between the two adjacent cells 6, so that foaming agent can be filled between the two adjacent cells 6 to achieve fixation.

[0106] In some embodiments, the battery cell 6 and the support 2 are spaced apart, and the space between the battery cell 6 and the support is filled with a foaming agent.

[0107] It is understandable that the battery cell 6 and the bracket 2 are spaced apart, that is, there is a gap between the battery cell 6 and the bracket 2, so that foaming agent can be filled between the battery cell 6 and the bracket 2 to achieve fixation.

[0108] In some embodiments, the battery further includes electrical components disposed on the side of the sealing portion 4 opposite to the pressure relief channel 3.

[0109] It is understandable that by placing the electrical components on the side of the sealing part 4 away from the pressure relief channel 3, the sealing part 4 blocks one end of the pressure relief channel 3, preventing the high-temperature gas generated during battery thermal runaway from flowing to both ends of the pressure relief channel 3 simultaneously. The high-temperature gas will flow away from the electrical equipment, thus preventing the high-temperature gas from spreading to the location of the electrical equipment and effectively reducing the impact of the high-temperature gas generated during battery thermal runaway on the electrical equipment.

[0110] According to an embodiment of the third aspect of this application, the electrical device includes the battery described above.

[0111] According to the embodiments of this application, the electrical equipment connects the bracket 2 and the base 1 together, forming a pressure relief channel 3. When the battery experiences thermal runaway, high-temperature gas can be discharged through the pressure relief channel 3, thus relieving pressure on the battery. Simultaneously, the sealing part 4 blocks one end of the pressure relief channel 3, making it a one-way pressure relief channel 3. This ensures that the high-temperature gas generated during battery thermal runaway can only flow in one direction along the pressure relief channel 3, preventing bidirectional flow. In other words, this application makes the pressure relief channel 3 one-way by using the sealing part 4. By placing the electrical equipment on the side of the sealing part 4 away from the pressure relief channel 3, the spread of high-temperature gas generated during battery thermal runaway to the location of the electrical equipment can be effectively prevented, reducing the impact of battery thermal runaway on the electrical equipment.

[0112] This application seals one end of the pressure relief channel 3 by sealing the sealing part 4, so that the high-temperature gas generated during battery thermal runaway cannot flow to both ends of the pressure relief channel 3 at the same time. Then, the electrical equipment is placed on the side of the sealing part 4 away from the pressure relief channel 3, and the high-temperature gas will flow away from the electrical equipment, which can prevent the high-temperature gas from spreading to the location of the electrical equipment and effectively reduce the impact of the high-temperature gas generated during battery thermal runaway on the electrical equipment.

[0113] It should be noted that electrical equipment can be vehicles, energy storage power sources, consumer electronics, medical devices, smart cities, aircraft, or household appliances. It is important to note that the above are merely illustrative examples of electrical equipment and do not impose any specific limitations on the types of equipment used.

[0114] The embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A battery box characterized by, The application relates to a battery box. The battery box comprises a base, a support assembly connected to the bottom plate of the base and protruding from the bottom plate, and a bracket connected to one end of the support assembly away from the bottom plate, the support assembly being used for supporting the bracket so that a pressure relief channel is formed between the bracket and the bottom plate. The support assembly comprises a plurality of support ribs arranged side by side, the first end of the support rib being fixedly connected to the bottom plate, and the second end of the support rib being abutted against the bracket. The base, the bracket and every two adjacent support ribs form the pressure relief channel.

2. The battery pack of claim 1, wherein, The plurality of support ribs are uniformly spaced.

3. The battery pack of claim 2, wherein, The support rib is sealingly connected to the bracket.

4. The battery pack of claim 2, wherein, At least part of the support rib is formed with a connecting channel, the connecting channel of the support rib being used for connecting two adjacent pressure relief channels.

5. The battery pack of claim 2, wherein, The connecting channel comprises a through hole or a connecting notch formed in the support rib.

6. The battery box according to any one of claims 2 to 5, characterized in that, The support assembly is integrally formed with the base.

7. The battery pack of claim 6, wherein, One of the bracket and the base is provided with a blocking part at one end of the pressure relief channel, and the other of the bracket and the base is sealingly connected to the blocking part to block one end of the pressure relief channel.

8. The battery box according to any one of claims 1 to 5, characterized by The application further relates to a battery comprising a battery core and the battery box as claimed in any one of claims 1 to 9, the battery core being mounted on the side of the bracket away from the pressure relief channel.

9. The battery box according to any one of claims 1 to 5, characterized by The application further relates to a battery as claimed in claim 10.

10. A battery, characterized by ​ 11. An electrical device, characterized by ​

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