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CN-121983728-A - Battery compartment structure of node instrument and pouring sealant method thereof

CN121983728ACN 121983728 ACN121983728 ACN 121983728ACN-121983728-A

Abstract

The application relates to the field of seismic exploration equipment, in particular to a battery compartment structure of a node instrument and a pouring sealant method thereof. The device comprises an upper shell and a lower shell, wherein the upper shell is fixedly connected with the lower shell, a containing cavity for containing is formed in the upper shell and the lower shell, a flow guide opening is formed in the side wall of the upper shell and the side wall of the lower shell, and the flow guide opening is communicated with the containing cavity. The application has the effects of reducing spontaneous combustion risk, reducing the occurrence of safety accidents of the node instrument and guaranteeing the use safety of the node instrument to the greatest extent.

Inventors

  • CAO HONG
  • SHANG YONGSHENG
  • YE PENGFEI
  • Cai Mingui
  • YAN HAO
  • YU SIWEN

Assignees

  • 中国石油集团东方地球物理勘探有限责任公司
  • 中国石油天然气集团有限公司

Dates

Publication Date
20260505
Application Date
20251226

Claims (10)

  1. 1. The battery compartment structure of the node instrument is characterized by comprising an upper shell (1) and a lower shell (2), wherein the upper shell (1) is fixedly connected with the lower shell (2), a containing cavity (3) for containing is formed in the upper shell (1) and the lower shell (2), a guide opening (4) is formed in the side wall of the upper shell (1) and the side wall of the lower shell (2), and the guide opening (4) is communicated with the inside of the containing cavity (3).
  2. 2. The node instrument battery compartment structure according to claim 1, wherein the side walls of the upper shell (1) and the lower shell (2) are further provided with air outlets (5), the air outlets (5) are communicated with the diversion openings (4), and the distance between the air outlets (5) and the side wall of the lower shell (2) away from the upper shell (1) is not smaller than the distance between the diversion openings (4) and the side wall of the lower shell (2) away from the upper shell (1).
  3. 3. A method of pouring sealant, applied to the node instrument battery compartment structure of any one of claims 1-2, the method comprising: S1, cleaning side walls of a containing cavity (3) in an upper shell (1) and a lower shell (2), drying the inside of the containing cavity (3), arranging a plurality of electric cores in the containing cavity (3) after drying, wherein the electric cores are arranged between the upper shell (1) and the lower shell (2), the containing cavity (3) comprises a glue filling area and a non-glue filling area which are mutually communicated, the glue filling area is positioned on one side, close to the lower shell (2), of the non-glue filling area, and the non-glue filling area is filled with adhesive tapes; S2, welding and fixing the electrode lugs and the connecting sheets of the battery cell; S3, pouring glue from the diversion opening (4) towards the accommodating cavity (3); s4, curing the upper shell (1), the lower shell (2) and the glue filling area.
  4. 4. The pouring sealant method according to claim 3, wherein in S1, the side walls of the accommodating cavities (3) inside the upper shell (1) and the lower shell (2) are cleaned through isopropanol wiping, so that the surface tension of the side walls of the upper shell (1) and the lower shell (2) facing the glue filling area is more than or equal to 35N/m.
  5. 5. The pouring sealant method according to claim 3, wherein in S1, drying is performed through hot air circulation, the temperature range of the hot air circulation is 55-65 ℃, and the drying time range is 25-35 minutes, so that the water content of the side wall surfaces of the upper shell (1) and the lower shell (2) facing the glue filling area is less than or equal to 0.1%.
  6. 6. The method of pouring sealant according to claim 3, wherein in S3, the pouring sealant comprises: s31, injecting glue to one side, close to the lower shell (2), of the glue injection area at a first level, and filling gaps between the battery cells and the bottom of one side, away from the upper shell (1), of the lower shell (2); S32, a second level, which is positioned at one side of the first level, which is close to the upper shell (1), and fills an edge gap between the accommodating cavity (3) and the battery cell; S33, a third layer covers the battery pack protection plate and the circuit interface in the accommodating cavity (3); Wherein the first level, the second level and the third level are distributed in sequence along a height direction from the lower case (2) to the upper case (1).
  7. 7. The method of pouring sealant according to claim 6, wherein after the first level is filled, the second level is filled after the side of the first level, which is close to the second level, is dried, and when the Shore A hardness of the first level and the second level reaches a range of 30-40, the third level is filled.
  8. 8. The method of claim 6, wherein after curing, the first layer has a hardness Shore A50-70, a cure shrinkage of 1.5% or less, the second layer has a hardness Shore A30-50 after curing at room temperature, a cure shrinkage of 2.0% or less, and the third layer has a hardness Shore A70-80 after curing at room temperature, a cure shrinkage of 1.0% or less.
  9. 9. The method of claim 6, wherein the first level of glue lines are arranged along a serpentine path and the second level of glue lines are arranged along an annular path.
  10. 10. A pouring sealant method according to claim 3, wherein after S4, the bubbles in the accommodating cavity (3) are detected, the diameter of each bubble is less than or equal to 0.5mm, and the number of bubbles in each 100cm < 2 > is less than or equal to 3.

Description

Battery compartment structure of node instrument and pouring sealant method thereof Technical Field The application relates to the field of seismic exploration equipment, in particular to a battery compartment structure of a node instrument and a pouring sealant method thereof. Background The node instrument is used as one of the seismic exploration core equipment, is widely integrated with the new achievements of various technologies such as a seismic exploration technology, an electronic technology, a computer technology, a communication technology, a digital signal processing technology and a data transmission technology, works in the field places such as deserts, mountain areas, grasslands, loess tablelands and gobi, and is distributed in a designated exploration area according to measuring points designed in a construction scheme. Before the node instrument is distributed to the field measuring point, a large number of node instruments are uniformly stored in the camp, when the node instruments are required to be distributed, a field node distributing person carries a certain number of node instruments to a transport vehicle, the node instruments are transported to a designated position in a vehicle-mounted mode, if the transport vehicle cannot directly reach the designated exploration position, the field person also needs to unload the node instruments, the node instruments are continuously carried in a transport bag or a portable mode, and finally the node instruments are distributed at the designated measuring point position. In order to meet the field applicability of the node instrument, reduce the volume and the weight of the node instrument, improve the field arrangement efficiency of the node instrument, the internal circuit board of the node instrument is powered by a lithium battery pack with higher energy density, and along with the technical improvement of electrode materials, electrolytes, battery structure design, manufacturing process and the like of the lithium battery, the energy density of a lithium battery cell is greatly improved, and the capacity of the cell is increasingly larger under the condition that the volume of a single cell is unchanged. The lithium battery PACK (battery PACK) process is a process of combining single cells (cells) in series/parallel and integrating a Battery Management System (BMS), a thermal management system, structural members, etc., to form a complete battery PACK. PACK technology of a battery directly affects the safety, energy density, life and cost of the battery. Aiming at the related technology, the inventor considers that in the using or transporting process of the node instrument, the node can cause the possibility of space dislocation or mechanical damage of an internal cell or a part of the battery pack due to vibration or collision of external force, and finally the node instrument with larger space dislocation or serious mechanical damage of the internal cell or the part of the battery pack can generate spontaneous combustion during the storage and using process of the node, and the spontaneous combustion node instrument can ignite surrounding node instruments to cause safety accidents. Disclosure of Invention In order to reduce spontaneous combustion risk and reduce occurrence of safety accidents of node instruments, the application provides a battery compartment structure of the node instrument and a pouring sealant method thereof, and the use safety of the node instrument is guaranteed to the greatest extent. The application provides a battery compartment structure of a node instrument, which adopts the following technical scheme: the utility model provides a node instrument battery compartment structure, includes epitheca and inferior valve, the epitheca with inferior valve fixed connection, the epitheca with form the chamber that holds that is used for holding in the inferior valve, the epitheca with the water conservancy diversion mouth has been seted up to the lateral wall of inferior valve, the water conservancy diversion mouth with hold the intracavity intercommunication. Optionally, the upper shell and the side wall of the lower shell are further provided with an air outlet, the air outlet is communicated with the diversion opening, and the distance between the air outlet and the side wall of the lower shell, which is away from the upper shell, is not less than the distance between the diversion opening and the side wall of the lower shell, which is away from the upper shell. The application also provides a pouring sealant method which is applied to the node instrument battery compartment structure, and the method comprises the following steps: S1, cleaning side walls of a containing cavity in an upper shell and a lower shell, drying the containing cavity, arranging a plurality of electric cores in the containing cavity after drying, wherein the electric cores are arranged between the upper shell and the lower shell, the containing