CN209822755U

CN209822755U - Explosion-proof device for battery pack

Info

Publication number: CN209822755U
Application number: CN201920611315.8U
Authority: CN
Inventors: 周升升
Original assignee: SUZHOU FALAB FAILURE ANALYSIS LABORATORY Co Ltd
Current assignee: SUZHOU FALAB FAILURE ANALYSIS LABORATORY Co Ltd
Priority date: 2019-04-30
Filing date: 2019-04-30
Publication date: 2019-12-20
Anticipated expiration: 2029-04-30

Abstract

The utility model belongs to the battery pack field, in particular to a battery pack explosion-proof device, which provides the following proposal aiming at the problem of poor explosion-proof effect of the prior battery pack, which comprises a battery pack main body, wherein the upper end of the battery pack main body is provided with a cover plate, the front end of the battery pack main body is provided with an alarm and a controller, two pressure relief pipes are arranged at the upper end of the cover plate, the upper ends of the two pressure relief pipes are connected with the three-way pipe, the top end of the three-way pipe is connected with the air outlet pipe, the top end of the air outlet pipe is provided with a sealing cover, the lower end of the three-way pipe is fixedly provided with a slide bar, the bottom end of the sliding rod is fixedly connected with the cover plate, the sliding rod is wound with a spring, the top end of the spring is fixedly provided with a sliding ring, and slip ring and slide bar sliding connection, the utility model discloses explosion-proof effectual, degree of automation is high, and is dampproofing effectual, easy operation convenience, the practicality is high.

Description

Explosion-proof device for battery pack

Technical Field

The utility model relates to a battery package field especially relates to a battery package explosion-proof equipment.

Background

Along with the development of electric motor car, the safety protection problem of lithium ion power battery package is salient day by day, because the lithium cell can produce a large amount of gases under abnormal condition, if these gases can not effectively discharge the power battery package rapidly, can lead to power battery package internal pressure to rise and even the explosion accident appears, and then need install explosion-proof equipment additional on the battery package, now propose a battery package explosion-proof equipment.

SUMMERY OF THE UTILITY MODEL

The utility model provides a pair of battery package explosion-proof equipment has solved the current poor problem of battery package explosion-proof effects.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an explosion-proof device of a battery pack comprises a battery pack main body, wherein the upper end of the battery pack main body is provided with a cover plate, the front end of the battery pack main body is provided with an alarm and a controller, the upper end of the cover plate is provided with two pressure relief pipes, the upper ends of the two pressure relief pipes are connected with a three-way pipe, the top end of the three-way pipe is connected with the air outlet pipe, the top end of the air outlet pipe is provided with a sealing cover, the lower end of the three-way pipe is fixedly provided with a slide bar, the bottom end of the sliding rod is fixedly connected with the cover plate, the sliding rod is wound with a spring, the top end of the spring is fixedly provided with a sliding ring, the sliding ring is connected with the sliding rod in a sliding way, two connecting rods are symmetrically and fixedly arranged at the two ends of the sliding ring, the two connecting rods are fixedly connected with the sealing cover, the lower end of the three-way pipe is fixed with a pressure sensor, the upper end of the connecting rod is fixedly provided with a pressing block, and the pressing block is positioned under the pressure sensor.

Preferably, two mounting panels are symmetrically installed at two ends of the cover plate, and the mounting panels are detachably connected with the battery pack main body through bolts.

Preferably, the three-way pipe is fixedly connected with the cover plate through two support rods.

Preferably, a sponge ring is arranged at the joint of the bottom end of the sealing cover and the air outlet pipe.

Preferably, a storage battery is arranged in the battery pack, the pressure sensor, the controller and the alarm are all electrically connected with the storage battery, the pressure sensor is electrically connected with the controller, and the controller is electrically connected with the alarm.

The utility model has the advantages that: through the setting of pressure sensor, briquetting, bracing piece, slip ring, sealed lid, connecting rod, slide bar and spring etc., can realize carrying out the explosion-proof to the battery package main part to can make the staff in time take remedial measure through automatic alarm, through setting up the sponge circle, and then improve the dampproofing and waterproofing effect of outlet duct.

The utility model discloses explosion-proof effectual, degree of automation is high, and dampproofing effectual, easy operation is convenient, and the practicality is high.

Drawings

Fig. 1 is a schematic structural view of an explosion-proof device for a battery pack according to the present invention.

Fig. 2 is the utility model provides a cross-sectional view of outlet duct in battery package explosion-proof equipment.

Reference numbers in the figures: 1 pressure sensor, 2 pressing blocks, 3 supporting rods, 4 sliding rings, 5 sealing covers, 6 connecting rods, 7 sliding rods, 8 springs, 9 three-way pipes, 10 pressure relief pipes, 11 cover plates, 12 battery pack main bodies, 13 alarms, 14 mounting plates, 15 air outlet pipes and 16 sponge rings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-2, an explosion-proof device for a battery pack comprises a battery pack main body 12, a cover plate 11 is arranged at the upper end of the battery pack main body 12, an alarm 13 and a controller are arranged at the front end of the battery pack main body 12, two pressure relief pipes 10 are arranged at the upper end of the cover plate 11, the upper ends of the two pressure relief pipes 10 are connected to a three-way pipe 9, the top end of the three-way pipe 9 is connected to an air outlet pipe 15, a sealing cover 5 is arranged at the top end of the air outlet pipe 15, a sliding rod 7 is fixedly arranged at the lower end of the three-way pipe 9, a spring 8 is wound on the sliding rod 7, a sliding ring 4 is fixedly arranged at the top end of the spring 8, the sliding ring 4 is slidably connected with the sliding rod 7, two connecting rods 6 are symmetrically and fixedly arranged at the two ends of the sliding ring 4, the tops of the, and the pressure block 2 is located right below the pressure sensor 1.

In this embodiment, two mounting panels 14 are installed to 11 both ends symmetries of apron, and two mounting panels 14 all are connected with battery package main part 12 is detachable through the bolt, three-way pipe 9 is through two bracing pieces 3 and 11 fixed connection of apron, sealed lid 5 bottom and 15 junctions of outlet duct are provided with sponge circle 16, be provided with the battery in the battery package, pressure sensor 1, controller and siren 13 all with battery electric connection, pressure sensor 1 and controller electric connection, controller and siren 13 electric connection.

Example (b): under normal pressure, spring 8 applys decurrent pressure to sealed lid 5 through connecting rod 6, sealed lid 5 just can seal the 15 mouths of pipe of outlet duct, when the atmospheric pressure in the battery package main part 12 rose, can loop through pressure release pipe 10, three-way pipe 9 and outlet duct 15 exert pressure to sealed lid 5, sealed lid 5 just has ascending thrust, and then drive slip ring 4 through connecting rod 6 and upwards slide, briquetting 2 moves up under the drive of connecting rod 6, briquetting 2 that shifts up just can exert pressure to pressure sensor 1, pressure sensor 1 receives pressure information, and pass this information to the controller, the controller just can send the instruction to the alarm, the alarm just can report to the police, the controller model is SC200, the alarm model is ANT-Y20, pressure sensor 1 model is PT 124G-210. Through the setting of pressure sensor 1, briquetting 2, bracing piece 3, slip ring 4, sealed lid 5, connecting rod 6, slide bar 7 and spring 8 etc., can realize carrying out explosion-proof to battery package main part 12 to can make the staff in time take remedial action through automatic alarm, through setting up sponge circle 16, and then improve the dampproofing and waterproofing effect of outlet duct 15. The utility model discloses explosion-proof effectual, degree of automation is high, and dampproofing effectual, easy operation is convenient, and the practicality is high.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The battery pack explosion-proof device comprises a battery pack main body (12) and is characterized in that a cover plate (11) is arranged at the upper end of the battery pack main body (12), an alarm (13) and a controller are installed at the front end of the battery pack main body (12), two pressure relief pipes (10) are installed at the upper end of the cover plate (11), the upper ends of the two pressure relief pipes (10) are connected to a three-way pipe (9), the top end of the three-way pipe (9) is connected to an air outlet pipe (15), a sealing cover (5) is arranged at the top end of the air outlet pipe (15), a sliding rod (7) is fixedly installed at the lower end of the three-way pipe (9), the bottom end of the sliding rod (7) is fixedly connected with the cover plate (11), a spring (8) is wound on the sliding rod (7), a sliding ring (4) is fixedly installed at the top, two connecting rods (6) are symmetrically and fixedly mounted at two ends of the sliding ring (4), the two connecting rods (6) are fixedly connected with the sealing cover (5) in a top cloth mode, a pressure sensor (1) is fixed at the lower end of the three-way pipe (9), a pressing block (2) is fixedly mounted at the upper end of each connecting rod (6), and the pressing block (2) is located under the pressure sensor (1).

2. The explosion-proof device of the battery pack according to claim 1, wherein two mounting plates (14) are symmetrically mounted at two ends of the cover plate (11), and the two mounting plates (14) are detachably connected with the battery pack main body (12) through bolts.

3. The explosion-proof device for the battery pack as claimed in claim 1, wherein the three-way pipe (9) is fixedly connected with the cover plate (11) through two support rods (3).

4. The explosion-proof device for the battery pack as claimed in claim 1, wherein a sponge ring (16) is provided at the connection of the bottom end of the sealing cover (5) and the air outlet pipe (15).

5. The battery pack explosion-proof device according to claim 1, wherein a storage battery is arranged in the battery pack, the pressure sensor (1), the controller and the alarm (13) are all electrically connected with the storage battery, the pressure sensor (1) is electrically connected with the controller, and the controller is electrically connected with the alarm (13).