CN217331532U

CN217331532U - Cylinder lithium ion battery gas tightness test fixture

Info

Publication number: CN217331532U
Application number: CN202221020521.XU
Authority: CN
Inventors: 刘均均
Original assignee: Huizhou Deyi New Energy Co ltd
Current assignee: Hubei Deyu Investment Holding Co ltd
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2022-08-30
Anticipated expiration: 2032-04-29

Abstract

The utility model discloses a belong to tightness test fixture technical field, specifically be a cylinder lithium ion battery gas tightness test fixture, including base and mounting groove, the articulated sealed lid that is provided with in base top, sealed roof intercommunication inner chamber is provided with the aerostatic press, the base top is provided with the aspiration pump, the aspiration pump inserts there is the exhaust tube. The utility model discloses a, a plurality of cylinder lithium ion battery can once be fixed to this device, put a plurality of cylinder lithium ion battery between two splint in proper order, the rethread crank drives the installation pole and rotates together with the second bevel gear, thereby make first bevel gear drive the bull stick and rotate, thereby make the splint on the rightmost side move towards the left side, can carry out the centre gripping to a plurality of cylinder lithium ion battery and fix, covering sealed lid, start the aspiration pump and take sealed inside gas of lid out the back, observe inside atmospheric pressure through the aerostatic press, wait a period after, observe sealed inside atmospheric pressure value of lid again and whether change.

Description

Cylinder lithium ion battery gas tightness test fixture

Technical Field

The utility model relates to a tightness test fixture technical field specifically is a cylinder lithium ion battery gas tightness test fixture.

Background

A lithium ion battery is a type of secondary battery that mainly operates by movement of lithium ions between a positive electrode and a negative electrode. During charging and discharging, Li + is inserted and extracted back and forth between two electrodes: during charging, Li + is extracted from the positive electrode and is inserted into the negative electrode through the electrolyte, and the negative electrode is in a lithium-rich state; the opposite is true during discharge. The lithium ion battery uses non-aqueous liquid organic electrolyte, and in real life, most of the lithium ion batteries are cylindrical, so that the lithium ion batteries are convenient to assemble and occupy more reasonable space.

In the prior art, when the lithium ion battery is tested in the air tightness test process, the lithium ion battery needs to be put into water for pressure test, the test method is long in test time, the test result is unstable, the water inflow of a test main body is easily caused to influence the test accuracy, and therefore the cylindrical lithium ion battery air tightness test clamp needs to be developed.

SUMMERY OF THE UTILITY MODEL

This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract of the specification and the title of the application to avoid obscuring the purpose of this section, the abstract of the specification and the title of the application, and such simplifications or omissions are not intended to limit the scope of the invention.

For solving the technical problem, according to the utility model discloses an aspect, the utility model provides a following technical scheme:

the utility model provides a cylinder lithium ion battery gas tightness test fixture, includes:

the air pump is connected with an air exhaust pipe, and the other end of the air exhaust pipe penetrates through the left side wall of the sealing cover and is communicated with the inner cavity of the sealing cover;

the mounting groove, horizontal mounting groove has been seted up to the base top indent, the mounting groove inner chamber rotates and is provided with horizontal bull stick, mounting groove right side half is provided with the external screw thread, the mounting groove inner chamber slides and is provided with a plurality of splint, the bull stick slides and runs through a plurality of splint, the rightmost side splint are run through by the bull stick spiro union, the bull stick right-hand member is provided with first bevel gear, the lateral wall runs through before the base and is provided with the installation pole, the installation pole is located the inside one end of bull stick and sets up the second bevel gear, first bevel gear is connected in the second bevel gear meshing.

As a preferred scheme of cylinder lithium ion battery gas tightness test fixture, wherein: the sealing cover is a hollow rectangular body with an open bottom wall, and a sealing layer is arranged on the periphery of the bottom edge of the sealing cover.

As a preferred scheme of cylinder lithium ion battery gas tightness test fixture, wherein: the sealed preceding lateral wall of lid is provided with the visual window, sealed preceding lateral wall of lid with base top contact position is provided with the lid lock.

As a preferred scheme of cylinder lithium ion battery gas tightness test fixture, wherein: the two ends of the rotating rod are connected to the left side wall and the right side wall of the inner cavity of the mounting groove through bearings.

As a preferred scheme of cylinder lithium ion battery gas tightness test fixture, wherein: the front end of the mounting rod extends to the front side wall of the base and is provided with a crank, and an anti-skidding sleeve is arranged at the hand-held position of the crank.

As a preferred scheme of cylinder lithium ion battery gas tightness test fixture, wherein: the splint left side view is "T" shape, the narrower position in splint lower half is located the mounting groove, and the position that the upper half is wider is located the mounting groove top.

Compared with the prior art, the beneficial effects of the utility model are that: this device can once fix a plurality of cylinder lithium ion battery, put a plurality of cylinder lithium ion battery between two splint in proper order, rethread crank drives the installation pole and rotates together with second bevel gear, thereby make first bevel gear drive the bull stick and rotate, thereby make the splint on the rightmost side move towards the left side, can carry out the centre gripping to a plurality of cylinder lithium ion battery and fix, covering sealed lid, start the aspiration pump and take the inside gas of sealed lid out the back, observe inside atmospheric pressure through the aerostatic press, after a period, again observe sealed inside atmospheric pressure value of lid and whether change.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail with reference to the accompanying drawings and detailed embodiments, and 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 inventive labor. Wherein:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the present invention shown in FIG. 1 without the sealing cap;

FIG. 3 is a schematic view of the present invention in the bottom view of FIG. 2;

FIG. 4 is a schematic structural view of FIG. 2 without the base according to the present invention;

in the figure: the air pump comprises a base 100, a sealing cover 110, an air compressor 120, an air suction pump 130, an air suction pipe 140, a visible window 150, a cover lock 160, a mounting groove 200, a rotating rod 210, external threads 220, a clamping plate 230, a first bevel gear 240, a mounting rod 250, a second bevel gear 260 and a crank 270.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are 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 invention, but the present invention may be implemented in other ways than those specifically described herein, and one skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Next, the present invention will be described in detail with reference to the schematic drawings, and in the detailed description of the embodiments of the present invention, for convenience of explanation, the sectional view showing the device structure will not be enlarged partially according to the general scale, and the schematic drawings are only examples, and should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.

In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

Fig. 1-4 show that the utility model relates to a cylindrical lithium ion battery gas tightness test fixture's schematic structure, it includes:

the top of the base 100 is hinged with a sealing cover 110, the top wall of the sealing cover 110 is communicated with an inner cavity and is provided with an air compressor 120, the top of the base 100 is provided with an air pump 130, the air pump 130 is connected with an air pumping pipe 140, the other end of the air pumping pipe 140 penetrates through the left side wall of the sealing cover 110 and is communicated with the inner cavity of the sealing cover 110, the sealing cover 110 is a hollow rectangular body with an open bottom wall, the periphery of the bottom edge of the sealing cover 110 is provided with a sealing layer, the front side wall of the sealing cover 110 is provided with a visual window 150, and a cover lock 160 is arranged at the contact position of the front side wall of the sealing cover 110 and the top of the base 100;

the mounting groove 200, a transverse mounting groove 200 is concavely formed in the top of the base 100, a transverse rotating rod 210 is rotatably arranged in an inner cavity of the mounting groove 200, an external thread 220 is arranged on the right half part of the mounting groove 200, a plurality of clamping plates 230 are slidably arranged in an inner cavity of the mounting groove 200, the rotating rod 210 slidably penetrates through the clamping plates 230, the clamping plate 230 on the rightmost side is threadedly penetrated by the rotating rod 210, a first bevel gear 240 is arranged at the right end of the rotating rod 210, a mounting rod 250 is penetratingly arranged on the front side wall of the base 100, a second bevel gear 260 is arranged at one end of the mounting rod 250 positioned in the rotating rod 210, the second bevel gear 260 is meshed and connected with the first bevel gear 240, two ends of the rotating rod 210 are connected to the left and right side walls of the inner cavity of the mounting groove 200 through bearings, the front end of the mounting rod 250 extends to the front side wall of the base 100 and is provided with a crank 270, and a hand-holding part of the crank 270 is provided with an anti-slip sleeve, the left view of the clamping plate 230 is in a T shape, the narrower part of the lower half of the clamping plate 230 is positioned in the installation groove 200, and the wider part of the upper half is positioned above the installation groove 200.

In the concrete use, this device can once fix a plurality of cylinder lithium ion battery, put a plurality of cylinder lithium ion battery between two splint 230 in proper order, rethread crank 270 drives installation pole 250 and second bevel gear 260 rotates, thereby make first bevel gear 240 drive bull stick 210 rotate, thereby make the splint 230 on the rightmost side move towards the left side, can carry out the centre gripping to a plurality of cylinder lithium ion battery and fix, cover sealed lid 110, start aspiration pump 130 and take out the inside gas in sealed lid 110 after, observe inside atmospheric pressure through aerostatic press 120, wait a period of time after, again observe sealed lid 110 inside atmospheric pressure value and whether change.

While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, as long as there is no structural conflict, the various features of the disclosed embodiments of the present invention can be used in any combination with each other, and the non-exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims

1. The utility model provides a cylinder lithium ion battery gas tightness test fixture which characterized in that includes:

the air compressor comprises a base (100), wherein a sealing cover (110) is hinged to the top of the base (100), an air compressor (120) is arranged in a cavity communicated with the top wall of the sealing cover (110), an air pump (130) is arranged at the top of the base (100), an air suction pipe (140) is connected to the air pump (130), and the other end of the air suction pipe (140) penetrates through the left side wall of the sealing cover (110) and is communicated with the cavity of the sealing cover (110);

mounting groove (200), horizontal mounting groove (200) have been seted up to base (100) top indent, mounting groove (200) inner chamber rotates and is provided with horizontal bull stick (210), mounting groove (200) right half is provided with external screw thread (220), mounting groove (200) inner chamber slides and is provided with a plurality of splint (230), bull stick (210) slides and runs through a plurality of splint (230), the rightmost side splint (230) are run through by bull stick (210) spiro union, bull stick (210) right-hand member is provided with first bevel gear (240), base (100) preceding lateral wall runs through and is provided with installation pole (250), installation pole (250) are located bull stick (210) inside one end and set up second bevel gear (260), first bevel gear (240) are connected in second bevel gear (260) meshing.

2. The cylindrical lithium ion battery airtightness test fixture according to claim 1, characterized in that: the sealing cover (110) is a hollow rectangular body with an open bottom wall, and sealing layers are arranged on the periphery of the bottom edge of the sealing cover (110).

3. The cylindrical lithium ion battery airtightness test fixture according to claim 1, characterized in that: the front side wall of the sealing cover (110) is provided with a visual window (150), and a cover lock (160) is arranged at the contact position of the front side wall of the sealing cover (110) and the top of the base (100).

4. The cylindrical lithium ion battery airtightness test fixture according to claim 1, characterized in that: two ends of the rotating rod (210) are connected to the left side wall and the right side wall of the inner cavity of the mounting groove (200) through bearings.

5. The cylindrical lithium ion battery airtightness test fixture according to claim 1, characterized in that: the front end of the mounting rod (250) extends to the front side wall of the base (100) and is provided with a crank (270), and a hand-held part of the crank (270) is provided with an anti-skidding sleeve.

6. The cylindrical lithium ion battery airtightness test fixture according to claim 1, characterized in that: the left view of the clamping plate (230) is in a T shape, the narrower part of the lower half part of the clamping plate (230) is positioned in the installation groove (200), and the wider part of the upper half part of the clamping plate (230) is positioned above the installation groove (200).