CN218444345U

CN218444345U - Helium detecting device

Info

Publication number: CN218444345U
Application number: CN202222344819.2U
Authority: CN
Inventors: 吴泽喜; 李桥文; 刘万明; 王琨; 王宇龙
Original assignee: Shenzhen Chengjie Intelligent Equipment Co Ltd
Current assignee: Shenzhen Chengjie Intelligent Equipment Co Ltd
Priority date: 2022-09-02
Filing date: 2022-09-02
Publication date: 2023-02-03
Anticipated expiration: 2032-09-02

Abstract

The embodiment of the utility model provides a helium detection device, which comprises a cavity, a helium injection nozzle and a hairbrush component; a helium detection sealing cavity is arranged in the cavity and used for placing a battery to be detected; the helium injection nozzle is arranged in the helium detection sealing cavity and is used for being in sealing connection with a liquid injection hole of the battery; the brush assembly is used for cleaning the helium injection nozzle. This helium examines device adopts brush subassembly to examine before the helium examines and/or helium to annotate the helium mouth after and clear up to guarantee to annotate the cleanness of helium mouth department, avoid dust or impurity to block annotate the helium mouth or lead to annotating the gas tightness of being connected between the liquid hole by destruction between helium mouth and the battery, thereby guarantee the accuracy of helium examination result.

Description

Helium detecting device

Technical Field

The utility model relates to a battery top cap leakproofness detects technical field, especially relates to a helium detects device.

Background

In the production process of batteries, the detection of the sealing of the top cover of the battery is very important, because the sealing performance of the top cover of the battery directly determines the safety performance of the battery, and the poor sealing of the top cover can cause the accidents of electrolyte leakage, shell expansion, fire explosion and the like, thereby bringing great threat to battery enterprises and consumers.

At present, the leak detection methods adopted in the lithium ion battery industry mainly include a bubble method, a gas detection method, a pressure drop method, a differential pressure method, a flow method, a helium mass spectrum leak detection method and the like. Among them, helium mass spectrometer leak detection is widely used because of its highest detection accuracy.

In the helium detection process, the tightness of the connection between the helium filling nozzle of the helium filling mechanism and the battery filling port is very important, and if some dust or impurities exist on the helium filling nozzle, the helium filling nozzle can be blocked, or the tightness of the connection between the helium filling nozzle and the battery filling port can be damaged, so that helium gas leakage is caused, and the accuracy of the detection result is influenced.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a helium detects device for dust or impurity probably plug up annotate the helium mouth or destroy among the solution prior art and annotate the problem of the gas tightness of being connected between the liquid mouth with the battery.

In the embodiment of the utility model, the helium detection device comprises a cavity, a helium injection nozzle and a brush component; a helium detection sealing cavity is arranged in the cavity and used for placing a battery to be detected; the helium injection nozzle is arranged in the helium detection sealing cavity and is used for being in sealing connection with a liquid injection hole of the battery; the brush component is used for cleaning the helium injection nozzle.

As a further alternative of the helium detection device, the cavity comprises an upper sealed cavity and a lower sealed cavity, and the upper sealed cavity can be connected to the lower sealed cavity in a covering manner, so that the helium detection sealed cavity is formed.

As a further alternative of the helium testing device, the helium testing device further comprises a supporting component, a jacking component and a translation component; the supporting component is used for supporting the sealed upper cavity, the translation component is connected with the sealed lower cavity and used for driving the sealed lower cavity to move to the position below the sealed upper cavity, the sealed lower cavity is used for placing a battery, the jacking component can jack the sealed lower cavity, the sealed lower cavity is covered by the sealed upper cavity to be connected to form the helium detection sealed cavity, and a liquid injection hole of the battery is connected with the helium injection nozzle.

Conduct the helium further alternative of device is examined, the brush subassembly includes bracket component, jacking piece, driving motor and brush, the jacking piece driving motor with the brush all set up in on the bracket component, the bracket component with the translation subassembly is connected, can the drive of translation subassembly moves down arrive the sealed below of going up the cavity, the jacking piece is used for the jacking the brush, driving motor is used for the drive the brush rotates.

As a further alternative of the helium testing device, the bracket assembly comprises a bottom plate, a supporting rod, a supporting plate, a guiding shaft and an upper mounting plate, wherein the supporting rod is arranged on the bottom plate, the supporting plate is arranged above the supporting rod, a positioning hole is formed in the supporting plate, the guiding shaft is arranged in the positioning hole, the upper mounting plate is arranged at the upper end of the guiding shaft, and the jacking piece is arranged on the supporting plate and connected with the upper mounting plate; the upper mounting plate is used for arranging the brush and the driving motor.

As a further alternative of helium detection device, supporting component includes back shaft and mounting panel, the mounting panel set up in the upper end of back shaft, sealed upper chamber with mounting panel fixed connection.

As a further alternative of the helium testing device, the translation assembly comprises a translation electric cylinder module, and the translation electric cylinder module is connected with the sealed lower cavity and used for driving the sealed lower cavity to move.

As a further alternative of the helium testing device, the jacking assembly comprises a translation bottom plate, a jacking cylinder, a jacking bottom plate, a guide rod and a buffer assembly; the utility model discloses a jacking bottom plate, including jacking bottom plate, guide bar cover, jacking cylinder, jacking bottom plate, sealed lower cavity, buffer assembly, guide bar set up in on the translation bottom plate, the last connecting hole of having seted up of jacking bottom plate, the guide bar cover is located in the connecting hole, the jacking cylinder set up in on the translation bottom plate, the output of jacking cylinder with the lower terminal surface of jacking bottom plate is connected, sealed lower cavity set up in the up end of jacking bottom plate, buffer assembly set up in the translation bottom plate with between the jacking bottom plate, be used for play the cushioning effect when the jacking bottom plate descends.

As a further alternative of helium detection device, sealed cavity includes sealing washer and a plurality of baffle, and is a plurality of the baffle interval sets up sealed cavity internal a plurality of helium detection work position of separating down, helium detection work position is used for placing the battery.

As a further alternative of the helium testing device, the helium testing device further comprises an inductor, and the inductor is used for detecting whether a battery is in the helium testing sealed cavity or not and also detecting whether the height of the battery is proper or not.

Implement the embodiment of the utility model provides a, will have following beneficial effect:

the hairbrush assembly is used for cleaning the helium filling nozzle before and/or after helium detection, so that the cleanness of the helium filling nozzle is guaranteed, the helium filling nozzle is prevented from being blocked by dust or impurities or the air tightness of the connection between the helium filling nozzle and the battery liquid filling hole is prevented from being damaged, and the accuracy of a helium detection result is guaranteed.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Wherein:

fig. 1 is a schematic view of the overall structure of the helium detecting assembly according to an embodiment of the present invention;

fig. 2 is a schematic view of a part of a helium testing assembly according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a brush assembly of the helium testing assembly according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a translation assembly of the helium testing assembly according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a jacking assembly and a sensor of the helium testing assembly according to an embodiment of the present invention;

fig. 6 is a schematic structural view of a lower sealed cavity of the helium testing assembly according to an embodiment of the present invention;

description of the main element symbols:

10-cavity, 11-sealed upper cavity, 12-sealed lower cavity, 121-sealing ring, 122-clapboard and 123-helium testing working position;

20-helium injection nozzle;

30-brush assembly, 31-bracket assembly, 311-bottom plate, 312-support rod, 313-support plate, 314-guide shaft, 315-upper mounting plate, 32-lifting piece, 33-brush, 34-driving motor;

40-support component, 41-support shaft, 42-mounting plate;

50-translation assembly, 51-translation electric cylinder module;

60-a jacking assembly, 61-a jacking cylinder, 62-a jacking bottom plate, 63-a guide rod, 64-a translation bottom plate and 65-a buffer assembly;

70-inductor.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, 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 invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

An embodiment of the utility model provides a device is examined to helium for solve among the prior art dust or impurity and probably plug up annotate the helium mouth or destroy and annotate the problem of the gas tightness of being connected between the liquid mouth of helium mouth and battery.

In the embodiment of the present invention, please refer to fig. 1 and fig. 2 in combination, the helium detecting apparatus includes a chamber 10, a helium injection nozzle 20 and a brush assembly 30; a helium detection sealed cavity is arranged in the cavity 10 and used for placing a battery to be detected; the helium injection nozzle 20 is arranged in the helium detection sealing cavity and is used for being in sealing connection with a liquid injection hole of the battery; the brush assembly 30 is used to clean the helium filling nozzle.

The embodiment of the utility model provides an adopt brush subassembly 30 to examine before the helium examines and/or the helium examines the back to annotating helium mouth 20 and clear up to guarantee to annotate the cleanness of helium mouth 20 department, avoid dust or impurity to plug up annotate helium mouth 20 or lead to annotating the gas tightness of being connected between helium mouth 20 and the battery notes liquid hole and destroyed, thereby guarantee the helium and examine the accuracy of result.

In one embodiment, the chamber 10 comprises a sealed upper chamber 11 and a sealed lower chamber 12, and the sealed upper chamber 11 can be covered and connected with the sealed lower chamber 12, so as to form a helium detection sealed chamber.

In a specific embodiment, the helium testing apparatus further comprises a support assembly 40, a translation assembly 50 and a jacking assembly 60; the supporting component 40 is used for supporting the upper sealed cavity 11, the translation component 50 is connected with the lower sealed cavity 12 and used for driving the lower sealed cavity 12 to move to the position below the upper sealed cavity 11, the lower sealed cavity 12 is used for placing a battery, the jacking component 60 can jack the lower sealed cavity 12, the lower sealed cavity 12 and the upper sealed cavity 11 are connected in a covering mode to form a helium detection sealed cavity, and a liquid injection hole of the battery is connected with the helium injection nozzle 20.

In a more specific embodiment, referring to fig. 3, the brush assembly 30 includes a bracket assembly 31, a lifting member 32, a brush 33 and a driving motor 34, the lifting member 32, the driving motor 34 and the brush 33 are all disposed on the bracket assembly 31, the bracket assembly 31 is connected to the translation assembly 50 and can move to a position below the sealed upper cavity 11 under the driving of the translation assembly 50, the lifting member 32 is used for lifting the brush 33, and the driving motor 34 is used for driving the brush 33 to rotate.

In a further specific embodiment, the bracket assembly 31 includes a bottom plate 311, a support rod 312, a support plate 312, a guide shaft 314 and an upper mounting plate 315, the support rod 312 is disposed on the bottom plate 311, the support plate 312 is disposed above the support rod 312, a positioning hole is disposed on the support plate 312, the guide shaft 314 is disposed in the positioning hole, the upper mounting plate 315 is disposed at the upper end of the guide shaft 314, and the jacking member 32 is mounted on the support plate 312 and connected to the upper mounting plate 315; the upper mounting plate 315 is used to set the fur brush 33 and the driving motor 34.

Before the helium test is started or after the helium test is finished, the translation assembly 50 drives the brush assembly 30 to move to the position below the upper helium test sealing cavity 11, the brush 33 is aligned with the helium injection nozzle 20, the jacking piece 32 jacks the upper mounting plate 315, the brush 33 is made to contact with the helium injection nozzle 20, and then the driving motor 34 drives the brush 33 to rotate, so that the helium injection nozzle 20 is cleaned.

In a still further specific embodiment, the jacking members 32 are preferably pneumatic cylinders.

In a more specific embodiment, the supporting assembly 40 includes a supporting shaft 41 and a mounting plate 42, the mounting plate 42 is disposed at an upper end of the supporting shaft 41, and the upper sealing cavity 11 is fixedly connected to the mounting plate 42.

In another more specific embodiment, referring to fig. 4, the translation assembly 50 includes a translation cylinder module 51, and the translation cylinder module 51 can drive the lower seal chamber 12 to move.

In yet another more specific embodiment, referring to fig. 5, the jacking assembly 60 includes a jacking cylinder 61, a jacking bottom plate 62, a guide bar 63, a translation bottom plate 64, and a buffer assembly 65; the guide rod 63 is arranged on the translation bottom plate 64, a connecting hole is formed in the jacking bottom plate 62, the guide rod 63 is sleeved in the connecting hole, the jacking cylinder 61 is arranged on the translation bottom plate 64, the output end of the jacking cylinder 61 is connected with the lower end face of the jacking bottom plate 62, the sealed lower cavity 12 is arranged on the upper end face of the jacking bottom plate 62, and the buffering component 65 is arranged between the translation bottom plate 64 and the jacking bottom plate 62 and used for playing a buffering role when the jacking bottom plate 62 descends.

In one embodiment, referring to fig. 6, the lower sealed chamber 12 includes a sealing ring 121 and a plurality of partition plates 122, the partition plates 122 are disposed at intervals, and a plurality of helium testing working sites 123 are separated from the lower sealed chamber 12, and the helium testing working sites 123 are used for placing batteries.

The advantage of adopting above-mentioned scheme is that can detect a plurality of batteries once.

In another more specific embodiment, the basic scheme is the same as that of the previous embodiment, but the height of the partition plate 122 is higher, and when the upper seal chamber 11 is connected with the lower seal chamber 12 in a sealing manner, the partition plate 122 is in contact with the upper seal chamber, so that the helium detection working positions 123 are isolated from each other.

The advantage of using this embodiment is that multiple batteries can be tested in a single helium test device, but this solution either requires testing multiple batteries at once, takes longer, and is more costly than using two helium test instruments.

In actual production, the two schemes can be combined and used, a helium detection device with the helium detection working position 123 not isolated from each other is used for detecting a plurality of batteries, one helium detector is used for detecting a plurality of batteries at one time, so that the detection efficiency can be improved, when unqualified batteries exist in the batteries, the helium detection of the batteries can not pass, the helium detection devices with the helium detection working position 123 isolated from each other are used for respectively detecting the batteries, and the unqualified batteries are screened out. The combined scheme can greatly improve the production efficiency.

In one embodiment, referring to fig. 5, the helium testing apparatus further comprises a sensor 70, wherein the sensor 70 is used for detecting whether the battery is in the helium testing sealed cavity or not and also for detecting whether the height of the battery is proper or not. When the helium detection chamber is empty of batteries or the batteries are too high to properly connect to the helium filling nozzle 20, the sensor 70 can send a signal to be known by the staff.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A helium detection device is characterized by comprising a cavity, a helium injection nozzle and a brush assembly; a helium detection sealing cavity is arranged in the cavity and used for placing a battery to be detected; the helium injection nozzle is arranged in the helium detection sealing cavity and is used for being in sealing connection with a liquid injection hole of the battery; the brush component is used for cleaning the helium injection nozzle.

2. The helium testing device of claim 1, wherein the chamber comprises an upper sealed chamber and a lower sealed chamber, the upper sealed chamber being capable of being coupled to the lower sealed chamber in a covering manner to form the helium testing sealed chamber.

3. The helium testing apparatus of claim 2, further comprising a support assembly, a jacking assembly, and a translation assembly; the supporting component is used for supporting the upper sealed cavity, the translation component is connected with the lower sealed cavity and used for driving the lower sealed cavity to move to the position below the upper sealed cavity, the lower sealed cavity is used for containing a battery, the jacking component can jack the lower sealed cavity, the lower sealed cavity is covered and connected with the upper sealed cavity to form the helium detection sealed cavity, and a liquid injection hole of the battery is connected with the helium injection nozzle.

4. The helium detection device according to claim 3, wherein the brush assembly comprises a support assembly, a jacking member, a driving motor and a brush, the jacking member, the driving motor and the brush are arranged on the support assembly, the support assembly is connected with the translation assembly and can move to the position below the upper sealed cavity under the driving of the translation assembly, the jacking member is used for jacking the brush, and the driving motor is used for driving the brush to rotate.

5. The helium testing device according to claim 4, wherein the bracket assembly comprises a bottom plate, a support rod, a support plate, a guide shaft and an upper mounting plate, the support rod is arranged on the bottom plate, the support plate is arranged above the support rod, a positioning hole is formed in the support plate, the guide shaft is arranged in the positioning hole, the upper mounting plate is arranged at the upper end of the guide shaft, and the jacking piece is arranged on the support plate and connected with the upper mounting plate; the upper mounting plate is used for arranging the hairbrush and the driving motor.

6. The helium testing device of claim 3, wherein the supporting assembly comprises a supporting shaft and a mounting plate, the mounting plate is arranged at the upper end of the supporting shaft, and the upper sealing cavity is fixedly connected with the mounting plate.

7. The helium testing device of claim 3, wherein the translation assembly comprises a translation electric cylinder module, and the translation electric cylinder module is connected with the sealed lower cavity and used for driving the sealed lower cavity to move.

8. The helium testing device of claim 3, wherein the jacking assembly comprises a translation bottom plate, a jacking cylinder, a jacking bottom plate, a guide rod and a buffer assembly; the utility model discloses a jacking bottom plate, including jacking bottom plate, guide bar cover, jacking cylinder, jacking bottom plate, sealed lower cavity, buffer assembly, guide bar set up in on the translation bottom plate, the last connecting hole of having seted up of jacking bottom plate, the guide bar cover is located in the connecting hole, the jacking cylinder set up in on the translation bottom plate, the output of jacking cylinder with the lower terminal surface of jacking bottom plate is connected, sealed lower cavity set up in the up end of jacking bottom plate, buffer assembly set up in the translation bottom plate with between the jacking bottom plate, be used for play the cushioning effect when the jacking bottom plate descends.

9. The helium testing device according to claim 2, wherein the lower sealed cavity comprises a sealing ring and a plurality of partition plates, the partition plates are arranged at intervals, a plurality of helium testing working positions are separated in the lower sealed cavity, and the helium testing working positions are used for placing the battery.

10. The helium testing device according to claim 1, further comprising an inductor for detecting the presence of a battery in the helium testing sealed chamber and for detecting the proper height of the battery.