CN218444334U

CN218444334U - Leakage detection device

Info

Publication number: CN218444334U
Application number: CN202222372952.9U
Authority: CN
Inventors: 田军昊; 居宏达; 代兆洋; 沈海航; 万仞峰
Original assignee: Jiangsu Quanlucheng New Energy Technology Co Ltd
Current assignee: Jiangsu Quanlucheng New Energy Technology Co Ltd
Priority date: 2022-09-07
Filing date: 2022-09-07
Publication date: 2023-02-03
Anticipated expiration: 2032-09-07

Abstract

The utility model discloses a leakage detection device, which comprises a vacuum box and a battery, wherein a vacuum suction pipe is arranged at the top of the vacuum box and is communicated with an inner cavity of the vacuum box, a gas leakage detector is arranged at one side of the vacuum box, a probe of the gas leakage detector is positioned in the vacuum box, a sealing plate is arranged at one side of the vacuum box, a supporting plate is fixed at one side of the sealing plate, and a placing table for placing the battery is arranged on the upper surface of the supporting plate; the utility model discloses a set up the flexible locating piece of spring empty control in the standing groove, when making not unidimensional battery insert the standing groove, under the effect of spring, the locating piece supports the battery tightly from the outside, because the spring of relative both sides uses the same kind, when the battery inserts, the battery can be automatic keeps balanced in the intermediate position, from this, not unidimensional battery all can fix a position fast and be convenient for detect, need not change the positioning seat, can improve the detection efficiency of production line.

Description

Leakage detection device

Technical Field

The utility model relates to a battery production technical field specifically is a leak testing device.

Background

After the production of the battery is finished, a plurality of tests are required, and qualified products are allowed to leave a factory, wherein the tests comprise electrolyte leakage test, air leakage test, short circuit test, cycle life test and the like; the method is generally carried out in a vacuum cavity when the battery is subjected to air leakage detection, for example, the method for detecting the air tightness of the battery pack box disclosed in Chinese patent CN110426158A comprises the steps of filling inert gas in the battery pack box, and carrying out air tightness detection on the outer surface of the battery pack box by adopting inert gas detection equipment; when the inert gas leakage is detected, the gas leakage position is determined. The device can quickly measure the leakage rate of the battery pack box body and quickly position the gas leakage position of the battery pack box body, reduces the time of a gas tightness detection process of the battery pack box body, and improves the gas tightness detection efficiency of the battery pack box body;

and on the battery production line that uses this mode to detect among the prior art, adopt the manipulator to place the battery on the layer board usually, push and carry out the evacuation in the vacuum box, because the battery size that every customer need produce is different, the standing groove on the layer board needs to be customized according to the thickness and the width of battery very much, changes through the screw dismouting when using, and it is convenient inadequately to use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a leak detection device through set up the positioning mechanism that can adapt to battery width and thickness automatically in the standing groove, makes not unidimensional battery when the inspection, need not to change the positioning seat.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a leak testing device, includes vacuum box and battery, the vacuum suction tube is installed at vacuum box's top, the inner chamber intercommunication of vacuum suction tube and vacuum box, the gas leakage detector is installed to one side of vacuum box, the probe of gas leakage detector is located the vacuum box, one side of vacuum box is provided with the closing plate, one side of closing plate is fixed with the layer board, the upper surface of layer board is provided with the platform of placing that places that the battery was placed, place the locating component who is provided with the battery in the platform, the cylinder of drive closing plate horizontal migration is installed to vacuum box's bottom, the both sides welding of vacuum box has the sheet metal board.

Preferably, the positioning assembly comprises a thickness positioning block and a width positioning block, the thickness positioning block is provided with a plurality of, the width positioning block is provided with two, the width positioning block is located at two sides of the battery respectively, the thickness positioning blocks are symmetrically arranged at the other two sides of the battery, and springs are fixed at one ends of the thickness positioning block and one end of the width positioning block.

Preferably, the middle of the placing table is provided with a placing groove, the battery is located in the placing groove, the inner wall of the placing groove is provided with a plurality of grooves, the thickness positioning block and the width positioning block are respectively connected in the grooves in a sliding mode, and one end of the spring is fixed in the groove.

Preferably, one end of each of the thickness positioning block and the width positioning block is arranged in an arc shape, and a detection port is formed in the middle of the battery.

Preferably, one side of the sealing plate is provided with an integrally-formed sealing boss, one side of the vacuum box is arranged in an open mode, the sealing boss is inserted into the vacuum box in an inserting mode, and one side of the sealing plate is provided with a guide mechanism.

Preferably, the guide mechanism comprises two guide rods and two guide frames, one end of each guide rod is fixed to each of two sides of the corresponding sealing boss, and the two guide frames are connected to the bottom of the vacuum box in a sliding mode.

Preferably, the both sides of vacuum box all are provided with the guide cylinder that supplies the guide bar to run through, guide bar sliding connection is in the guide cylinder, the bottom welding of vacuum box has the fixed block, the outer wall of fixed block and the inner wall sliding connection of guide frame.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a set up the flexible locating piece of spring empty control in the standing groove, when making not unidimensional battery insert the standing groove, under the effect of spring, the locating piece supports the battery tightly from the outside, because the spring of relative both sides uses the same kind, when the battery inserts, the battery can be automatic keeps balanced at the intermediate position, therefore, not unidimensional battery all can fix a position fast and be convenient for detect, need not change the positioning seat, can improve the detection efficiency of production line, this guiding mechanism can reduce the space that the vacuum box occupy with the setting of installation sheet metal plate panel beating board simultaneously.

Drawings

Fig. 1 is an isometric view of the present invention;

FIG. 2 is a schematic view of the bottom of the vacuum box of the present invention;

FIG. 3 is a schematic structural view of the positioning assembly of the present invention;

fig. 4 is a schematic structural diagram of the width positioning block of the present invention.

In the figure: 1. a vacuum box; 2. a battery; 3. a vacuum suction tube; 4. a gas leakage detector; 5. sealing plates; 6. a support plate; 7. a placing table; 8. a positioning assembly; 9. a cylinder; 10. a sheet metal plate; 801. a thickness positioning block; 802. a width positioning block; 803. a spring; 804. a placement groove; 805. a groove; 11. a detection port; 12. sealing the boss; 13. a guide mechanism; 1301. a guide bar; 1302. a guide frame; 1303. a guide cylinder; 1304. and fixing blocks.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a leakage detection device comprises a vacuum box 1 and a battery 2, wherein a vacuum suction tube 3 is installed at the top of the vacuum box 1, the vacuum suction tube 3 is communicated with an inner cavity of the vacuum box 1, a gas leakage detector 4 is installed at one side of the vacuum box 1, a probe of the gas leakage detector 4 is positioned in the vacuum box 1, a sealing plate 5 is arranged at one side of the vacuum box 1, a supporting plate 6 is fixed at one side of the sealing plate 5, a placing table 7 for placing the battery 2 is arranged on the upper surface of the supporting plate 6, a positioning assembly 8 of the battery 2 is arranged in the placing table 7, an air cylinder 9 for driving the sealing plate 5 to move horizontally is installed at the bottom of the vacuum box 1, sheet metal plates 10 are welded at two sides of the vacuum box 1, the vacuum box 1 is convenient to install by arranging the sheet metal plates 10, and the space occupied by the air cylinder 9 and a guide mechanism 13 can be reduced;

the positioning assembly 8 comprises a plurality of thickness positioning blocks 801 and width positioning blocks 802, the number of the thickness positioning blocks 801 is two, the two width positioning blocks 802 are respectively positioned at two sides of the battery 2, the plurality of thickness positioning blocks 801 are symmetrically arranged at the other two sides of the battery 2, and springs 803 are fixed at one ends of the thickness positioning blocks 801 and one ends of the width positioning blocks 802;

a placing groove 804 is formed in the middle of the placing table 7, the battery 2 is located in the placing groove 804, a plurality of grooves 805 are formed in the inner wall of the placing groove 804, the thickness positioning block 801 and the width positioning block 802 are respectively connected in the grooves 805 in a sliding mode, and one end of the spring 803 is fixed in the groove 805;

one end of each of the thickness positioning block 801 and the width positioning block 802 is arranged in an arc shape, the middle of the battery 2 is provided with a detection port 11, when the battery 2 is placed, the bottom of the battery 2 is contacted with the arc-shaped surfaces of the thickness positioning block 801 and the width positioning block 802, the battery is continuously inserted downwards, the spring 803 is compressed until the bottom of the battery 2 is tightly attached to the bottom of the placing groove 804, at the moment, the thickness positioning block 801 and the width positioning block 802 tightly press the battery 2 from the outer side, and the battery 2 is positioned;

one side of the sealing plate 5 is provided with an integrally formed sealing boss 12, one side of the vacuum box 1 is open, the sealing boss 12 is inserted in the vacuum box 1, one side of the sealing plate 5 is provided with a guide mechanism 13, when the cylinder 9 pulls the sealing plate 5, the sealing boss 12 is inserted in the vacuum box 1, and the outer wall of the sealing boss 12 is glued with a sealing gasket to improve the sealing effect;

the guide mechanism 13 comprises two guide rods 1301 and two guide frames 1302, one ends of the two guide rods 1301 are respectively fixed on two sides of the sealing boss 12, the two guide frames 1302 are slidably connected to the bottom of the vacuum box 1, and the sealing plate 5 can stably and horizontally move by arranging the guide rods 1301 and the guide frames 1302, so that the sealing plate 5 can be opened;

guide cylinders 1303 for the guide rods 1301 to penetrate through are arranged on two sides of the vacuum box 1, the guide rods 1301 are connected into the guide cylinders 1303 in a sliding mode, a fixing block 1304 is welded to the bottom of the vacuum box 1, and the outer wall of the fixing block 1304 is connected with the inner wall of the guide frame 1302 in a sliding mode;

during the use, the manipulator outside the device presss from both sides tightly battery 2 from both sides and places in standing groove 804, battery 2 automatic positioning, battery 2 pushes into in vacuum box 1 under the effect of cylinder 9, battery 2 detects the mouth 11 and docks with one of them vacuum suction tube 3, be provided with vacuum suction ware and helium jar outside the device, access device, vacuum suction ware carries out the evacuation to vacuum box 1 and battery 2 simultaneously through vacuum suction tube 3, after the completion, let in the helium into and detect mouth 11 again, if battery 2 gas leakage, then the gas leakage detector 4 of being connected with vacuum box 1 inner chamber can detect the helium, realize the gas leakage detection of battery 2.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A leak detection device includes a vacuum box (1) and a battery (2), and is characterized in that: vacuum suction tube (3) are installed at the top of vacuum box (1), the inner chamber intercommunication of vacuum suction tube (3) and vacuum box (1), gas leakage detector (4) are installed to one side of vacuum box (1), the probe of gas leakage detector (4) is located vacuum box (1), one side of vacuum box (1) is provided with closing plate (5), one side of closing plate (5) is fixed with layer board (6), the upper surface of layer board (6) is provided with places platform (7) that supplies battery (2) to place, place locating component (8) that are provided with battery (2) in platform (7), drive closing plate (5) horizontal migration's cylinder (9) are installed to the bottom of vacuum box (1), the both sides welding of vacuum box (1) has sheet metal plate (10).

2. A leak detecting apparatus according to claim 1, characterized in that: locating component (8) are including thickness locating piece (801) and width locating piece (802), thickness locating piece (801) are provided with a plurality of, width locating piece (802) are provided with two, two width locating piece (802) are located the both sides of battery (2) respectively, and a plurality of thickness locating piece (801) are the symmetry and set up in the other both sides of battery (2), the one end of thickness locating piece (801) and width locating piece (802) all is fixed with spring (803).

3. A leak detecting apparatus according to claim 2, characterized in that: the battery storage rack is characterized in that a placing groove (804) is formed in the middle of the placing table (7), the battery (2) is located in the placing groove (804), a plurality of grooves (805) are formed in the inner wall of the placing groove (804), the thickness positioning block (801) and the width positioning block (802) are connected in the grooves (805) in a sliding mode respectively, and one end of the spring (803) is fixed in the groove (805).

4. A leak detecting apparatus according to claim 3, characterized in that: one end of each of the thickness positioning block (801) and the width positioning block (802) is arranged in an arc shape, and a detection port (11) is formed in the middle of the battery (2).

5. A leak detecting apparatus according to claim 4, characterized in that: one side of sealing plate (5) is provided with integrated into one piece's sealed boss (12), one side of vacuum box (1) is open setting, peg graft in vacuum box (1) sealed boss (12), one side of sealing plate (5) is provided with guiding mechanism (13).

6. A leak detecting apparatus according to claim 5, characterized in that: the guide mechanism (13) comprises two guide rods (1301) and two guide frames (1302), one end of each guide rod (1301) is fixed to each of two sides of the corresponding sealing boss (12), and the two guide frames (1302) are connected to the bottom of the vacuum box (1) in a sliding mode.

7. A leak detecting apparatus according to claim 6, characterized in that: the both sides of vacuum box (1) all are provided with guide cylinder (1303) that supply guide bar (1301) to run through, guide bar (1301) sliding connection is in guide cylinder (1303), the bottom welding of vacuum box (1) has fixed block (1304), the outer wall of fixed block (1304) and the inner wall sliding connection of guide frame (1302).