Assembly device capable of relieving pressure and retarding fire
By designing a pressure-relief and flame-arresting assembly, the problem of flame leakage during pressure relief in mining lithium-ion battery power boxes is solved by utilizing the narrow channel gaps of the grid body for pressure relief and cooling, thus achieving safe pressure relief and flame-arresting effects.
Patent Information
- Application Number
- CN202423258891.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2034-12-27
AI Technical Summary
Existing lithium-ion battery power boxes for mining cannot effectively prevent flame leakage during pressure relief, posing a safety hazard.
Design a pressure-relieving flame arrestor assembly that utilizes the gaps in the narrow channels within the grille to relieve pressure and cool the flame. The grille, formed by alternating layers of long and short grilles, combined with a tensioning screw and a welded plate, ensures that high-pressure gas can escape while preventing flames from passing through.
It effectively prevents flame leakage, meets mining safety standards, and ensures the safe application of lithium-ion batteries underground.
Smart Images
Figure CN223693300U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to pressure relief valve technical field especially relates to an assembly device of pressure relief and fire resistance. BACKGROUND
[0002] At present, the mine lithium ion battery power supply box adopts the pressure relief valve, when the air pressure in the box reaches a certain value, the pressure relief valve membrane breaks and starts to work, and the pressure in the box is released. But in this process, if there is flame in the box, the pressure relief valve does not have a narrow cooling channel, so it cannot prevent energy flame from leaking to the outside of the box, causing unsafe work in the coal mine. SUMMARY
[0003] Therefore, it is necessary to provide an assembly device of pressure relief and fire resistance aiming at the above problems.
[0004] An assembly device of pressure relief and fire resistance, comprising a cover, a base, long lattices and short lattices, a plurality of long lattices and two short lattices are alternately stacked to form a lattice body, and there is a channel gap between the two short lattices in the same horizontal plane, and the cover and the base are arranged at the upper end and the lower end of the lattice body respectively.
[0005] Preferably, it further comprises a tensioning screw, the long lattices and the short lattices are provided with through holes, and the tensioning screw penetrates the cover, the lattice body and the base in sequence to tension the lattice body.
[0006] Preferably, it further comprises a front welding plate, the upper end and the lower end of the front welding plate are detachably connected with the cover and the base respectively, and the middle part of the front welding plate is provided with a gas hole corresponding to the channel gap.
[0007] Preferably, one side of the short lattice is provided with a protrusion, and the protrusion is used for changing the flow path of the channel gap, so that it is S-shaped.
[0008] The utility model has the advantages that the problems of pressure relief and fire resistance after the thermal runaway of the battery cavity or the module of the existing mine lithium ion battery are solved, the channel gap with a long and narrow gap is designed in the lattice body according to the principle of pressure and flame conduction, only gas is released in the pressure relief process, and no energy is released after cooling; the safety standard for mine use is met, the conduction of flame is effectively blocked, the structure is simple and reliable, and the safe application of the lithium ion explosion-proof battery in the mine is ensured. BRIEF DESCRIPTION OF DRAWINGS
[0009] Fig. 1 It is a three-dimensional schematic view of an assembly device of pressure relief and fire resistance for one embodiment;
[0010] Fig. 2 It is an explosion schematic view of an assembly device of pressure relief and fire resistance. DETAILED DESCRIPTION
[0011] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of different ways beyond the specific details set forth herein without departing from the scope of the present application. It is therefore intended that the present application not be limited by the specific disclosure provided below.
[0012] It is to be understood that when an element is referred to as being "on" or "connected to" another element, it can be directly on or connected to the other element or intervening elements can be present. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.
[0013] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.
[0014] As Figs. 1-2As shown, a pressure relief fireproof assembly device, including the upper cover 1, base 2, long grid 3 and short grid 4, a plurality of long grid 3 and two short grid 4 are alternately stacked, forming a grid body 100, there is a channel gap between the two short grid 4 in the same horizontal plane, the upper cover 1 and base 2 are arranged at the upper end and lower end of the grid body 100 respectively. Specifically, in this embodiment, long grid 3 and short grid 4 are made of metal, with strong heat conduction capacity, when assembling, a layer of long grid 3 and a layer of short grid 4 are alternately stacked, on the same horizontal plane, two short grid 4 are needed to be placed, and the two short grid 4 are spaced apart, so as to form a channel gap on the grid body 100, in order to ensure the complete assembly of the grid body 100, the welding of the edge of the grid body 100 can be used to connect the long grid 3 and the short grid 4. Or use the way of bolt locking, tighten the long grid 3 and the short grid 4, which is not limited here. The existence of the upper cover 1 and the base 2 can assist in clamping the grid body 100, avoiding the grid body 100 loose, which can be welded or bolted to install the upper cover 1 and the base 2 at the upper and lower ends of the grid body 100. The channel gap in the grid body 100 can make the high-pressure gas discharge along the channel when the battery pack box body is in fire, and the flame cannot pass through the narrow channel gap, the gap of the channel gap is less than 0.2mm, thereby preventing the flame from leaking outside the box, ensuring the safety of the mine battery box.
[0015] As Figs. 1-2 shown, it also includes a tensioning screw 5, the long grid 3 and the short grid 4 are provided with through holes 31, the tensioning screw 5 penetrates the upper cover 1, the grid body 100 and the base 2 in turn, for tensioning the grid body 100. Specifically, in this embodiment, the tensioning screw 5 is used to tighten the upper cover 1, the grid body 100 and the base 2, which is more simple to assemble and low in cost, the tensioning screw 5 penetrates the through holes 31 on the long grid 3 and the short grid 4, which can also fix the long grid 3 and the short grid 4 to prevent deviation during assembly.
[0016] As Figs. 1-2 shown, it also includes a front welding plate 6, the upper end and lower end of the front welding plate 6 are detachably connected with the upper cover 1 and the base 2 respectively, and the middle part of the front welding plate 6 is provided with a gas hole 61 corresponding to the channel gap.
[0017] As Fig. 2 shown, the adjacent side of the short grid 4 is provided with a protrusion 41, and the protrusion 41 is used to change the flow path of the channel gap, so that it is S-shaped. Specifically, the protrusions 41 of the two short grids 4 on the same horizontal plane are staggered with each other and do not contact each other, thereby forming an S-shaped channel gap, which can increase the length of the narrow channel gap without increasing the width of the long grid 3 and the short grid 4, and more effectively isolate the flame from spouting.
[0018] The above-described embodiments only express several implementation manners of the utility model, the description is more specific and detailed, but can not therefore be understood as the limitation of the utility model patent range. It should be pointed out that for ordinary skilled person in the art, without departing from the utility model concept, several deformations and improvements can be made, which belong to the protection range of the utility model. Therefore, the protection range of the utility model patent should be subject to the appended claims.
Claims
1. A pressure-relief and flame arrest assembly comprising: The application relates to a grid body (100) comprising an upper cover (1), a base (2), long grid plates (3) and short grid plates (4), a plurality of the long grid plates (3) and two short grid plates (4) are alternately and sequentially stacked to form the grid body (100), and a channel gap exists between the two short grid plates (4) in the same horizontal plane, and the upper cover (1) and the base (2) are arranged at the upper end and the lower end of the grid body (100) respectively.
2. A pressure-relief and flame arrest assembly as defined in claim 1, wherein: The application further comprises a tensioning screw (5), the long grid plates (3) and the short grid plates (4) are provided with through holes (31), and the tensioning screw (5) sequentially penetrates the upper cover (1), the grid body (100) and the base (2) and is used for tensioning the grid body (100).
3. A pressure-relief and flame arrest assembly as defined in claim 1, wherein: The application further comprises a front welding plate (6), the upper end and the lower end of the front welding plate (6) are detachably connected with the upper cover (1) and the base (2) respectively, and the middle part of the front welding plate (6) is provided with a gas hole (61) corresponding to the channel gap.
4. A pressure-relief and flame arrest assembly as defined in claim 1, wherein: One side of the short grid plate (4) is provided with a protrusion (41), and the protrusion (41) is used for changing the flow path of the channel gap and making the channel gap present an S shape.