CN-224232851-U - Structural beam, box, battery and electric equipment

Abstract

The application provides a structural beam, a box body, a battery and electric equipment, which are used for solving the problems of space waste and low volume utilization rate of a structural beam arrangement mode in a battery in the prior art. The structural beam comprises a first side wall and a second side wall, wherein an exhaust channel is formed between the first side wall and the second side wall, the first side wall is provided with a first exhaust part for receiving the emission from at least one battery monomer, the second side wall is provided with a second exhaust part for receiving the emission from at least other battery monomers. The exhaust channels are arranged in the structural beam, and the battery monomers at the two sides of the structural beam can exhaust air into the exhaust channels by utilizing the exhaust parts on the first side wall or the second side wall, so that the arrangement of the battery cells in the battery bin is improved, the internal space of the battery is saved, and the volume utilization rate and the safety of the battery are ensured.

Inventors

• TANG YU
• XU CHENYI
• ZHANG CHENCHEN
• LI XING
• HUANG XIAOTENG
• WANG PENG

Assignees

• 宁德时代新能源科技股份有限公司

Dates

Publication Date

20260512

Application Date

20220926

Priority Date

20220817

Claims (20)

1. 1. A structural beam for a battery, the battery comprising a plurality of battery cells, the structural beam comprising: A first side wall and a second side wall, wherein an exhaust passage is formed between the first side wall and the second side wall, the first side wall and the second side wall are oppositely arranged along a first direction, The first side wall is provided with a first exhaust part for receiving the emission from at least one battery cell, the second side wall is provided with a second exhaust part for receiving the emission from at least the other battery cell, the first exhaust part and the second exhaust part are oppositely arranged along the first direction, the structural beam further comprises a heat insulating piece, the heat insulating piece is arranged between the first exhaust part and the second exhaust part, the heat insulating piece divides the exhaust channel into a first channel and a second channel, the first channel is communicated with the first exhaust part, the second channel is communicated with the second exhaust part, and the heat insulating piece is movably arranged in the exhaust channel along the first direction so as to change the size of the first channel or the second channel.
2. 2. The structural beam of claim 1, wherein the first vent is offset from the second vent in the first direction.
3. 3. The structural beam of claim 1, wherein along the first direction, a projection of the first exhaust section at least partially overlaps a projection of the second exhaust section to form an overlap region, the projection of the thermal shield covering at least the overlap region.
4. 4. The structural beam of claim 3, wherein the structural beam extends in a second direction, the first sidewall defines a plurality of first exhaust portions, the second sidewall defines a plurality of second exhaust portions, The insulation extends along the second direction and is located between the first sidewall and the second sidewall.
5. 5. The structural beam of claim 1, wherein the structural beam is formed from a material selected from the group consisting of, the structural beam further includes a support for securing the insulation.
6. 6. The structural beam of claim 5, wherein at least a portion of the support is configured to be capable of reacting with emissions of the battery cell to enable the thermal shield to be movable in the first direction.
7. 7. The structural beam of claim 6, wherein at least a portion of the support is configured to be melted when emissions of the battery cells are discharged into the vent channel.
8. 8. The structural beam of any one of claims 1 to 7, further provided with a reinforcement member disposed in the exhaust passage between the first side wall and the second side wall, the reinforcement member dividing the exhaust passage into a first sub-passage and a second sub-passage, the reinforcement member being provided with a communication hole that communicates the first sub-passage and the second sub-passage.
9. 9. The structural beam of claim 8, wherein in the first direction, both the first and second exhaust portions are offset from the communication hole.
10. 10. The structural beam of claim 8, wherein the first exhaust portion, the second exhaust portion, and the communication hole are each plural, the plural communication holes including a first communication hole, One of the first exhaust portion and the second exhaust portion, which are arbitrarily adjacent, coincides with the first communication hole projection in the first direction, and the other coincides with the first communication hole projection.
11. 11. The structural beam of claim 8, wherein the reinforcement member comprises first and second oppositely disposed connection ends, the first and second connection ends being connected to two opposite sidewalls of the structural beam, respectively.
12. 12. The structural beam of claim 11, wherein the first connection end comprises a first sub-connection portion and a second sub-connection portion arranged in a bifurcated manner, the first sub-connection portion being connected to the first side wall, the second sub-connection portion being connected to the second side wall.
13. 13. The structural beam of claim 11, wherein the second connection end includes third and fourth sub-connection portions arranged in a bifurcated manner, the third sub-connection portion being connected to the first side wall and the fourth sub-connection portion being connected to the second side wall.
14. 14. The structural beam of claim 8, further comprising a shield comprising a first shield and a second shield, the first shield being positioned between the first exhaust portion and the communication hole, the second shield being positioned between the second exhaust portion and the communication hole.
15. 15. The structural beam of claim 14, wherein the first and second shields are each provided with ventilation holes.
16. 16. The structural beam of claim 15, wherein the vent comprises a first vent and a second vent, the first vent being disposed on the first guard, a projection of the first vent in the first direction being offset from the first vent, and The second ventilation holes are formed in the second protection piece, and the projection of the second ventilation holes in the first direction is staggered with the second exhaust part.
17. 17. The structural beam of claim 15, wherein the vent holes are at least partially projected to coincide with the communication holes in the first direction.
18. 18. A box comprising the structural beam of any one of claims 1-17.
19. 19. A battery comprising a plurality of cells and the structural beam of any one of claims 1-17, or The battery comprises a plurality of battery cells and the case of claim 18 for housing the plurality of battery cells.
20. 20. The battery of claim 19, wherein at least one of the battery cells is connected to the first side wall of the structural beam and at least another of the battery cells is connected to the second side wall of the structural beam.

Description

Structural beam, box, battery and electric equipment Technical Field The application relates to the technical field of batteries, in particular to a structural beam, a box body, a battery and electric equipment. Background In recent years, new energy automobiles have been developed dramatically, and in the field of electric automobiles, a power battery plays an important role as a power source of the electric automobile. The battery in the prior art generally comprises a plurality of battery cells, and the plurality of battery cells adopt a close fitting arrangement mode. And in the use process of the battery monomer, the thermal runaway condition possibly exists, and once the battery monomer is in thermal runaway and discharges outwards, the surrounding battery monomer can be influenced, even chain reaction is initiated, and huge potential safety hazards are caused. Disclosure of utility model In view of the above, the application provides a structural beam, a box, a battery and electric equipment, which are used for solving the problem of poor safety of the battery in the prior art. In a first aspect, the application provides a structural beam, which comprises a first side wall and a second side wall, wherein an exhaust channel is formed between the first side wall and the second side wall, a first exhaust part is arranged on the first side wall and is used for receiving the emission from at least one battery monomer, and a second exhaust part is arranged on the second side wall and is used for receiving the emission from at least the other battery monomers. In the scheme, the exhaust channel is arranged inside the structural beam, and the battery monomers on two sides of the structural beam can exhaust gas into the exhaust channel by utilizing the first side wall or the holes on the second side wall, so that the influence of high-temperature gas on other battery monomers is avoided, the arrangement of the battery cells in the battery compartment is improved, the internal space of the battery is saved, and the volume utilization rate, the energy density and the safety of the battery are improved. In one possible design, the first sidewall and the second sidewall are disposed opposite in a first direction. In the scheme, the battery monomers are distributed on two sides of the structural beam, so that the battery monomers can be conveniently distributed in groups, and the arrangement mode can improve the heat dissipation effect of the battery on the premise of guaranteeing the exhaust effect. In one possible embodiment, the first exhaust section is offset from the second exhaust section in the first direction. In the above-mentioned scheme, the first exhaust portion and the second exhaust portion which are arranged in a staggered manner can avoid the mutual influence of the emissions sprayed from the first exhaust portion and the second exhaust portion. In one possible design, the first exhaust portion is disposed opposite the second exhaust portion along the first direction, and the structural beam further includes a thermal shield disposed between the first exhaust portion and the second exhaust portion. In the above scheme, the heat insulating piece separates the exhaust channel, so that the battery cells in the directions of the first side wall and the second side wall are prevented from being influenced by each other in the case of thermal runaway. In one possible design, along the first direction, the projection of the first exhaust portion and the projection of the second exhaust portion at least partially overlap to form an overlap region, and the projection of the thermal shield covers at least the overlap region. In the above-mentioned scheme, the projection of first exhaust portion has the coincidence with the projection of second exhaust portion in order to form the coincidence region, and the projection of heat-insulating material covers in the coincidence region at least, so, the heat-insulating material can avoid the battery monomer of first lateral wall and second lateral wall orientation to influence each other at thermal runaway. In one possible design, the structural beam extends in a second direction, the first side wall is provided with a plurality of first air discharge portions, the second side wall is provided with a plurality of second air discharge portions, The insulation extends along the second direction and is located between the first sidewall and the second sidewall. In the scheme, the extending direction of the heat insulating piece is the same as that of the structural beam, so that the exhaust sprayed from the first exhaust part and the second exhaust part can be conveniently blocked, and the installation process of the heat insulating piece can be conveniently realized. In one possible design, the thermal shield separates the exhaust passage into a first passage that communicates with the first exhaust portion and a second passage that communicates with the second exhaus