CN211652363U - Internal pressure testing device for cylindrical lithium ion battery - Google Patents
Internal pressure testing device for cylindrical lithium ion battery Download PDFInfo
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- CN211652363U CN211652363U CN202020401381.5U CN202020401381U CN211652363U CN 211652363 U CN211652363 U CN 211652363U CN 202020401381 U CN202020401381 U CN 202020401381U CN 211652363 U CN211652363 U CN 211652363U
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- pipe
- sealed tube
- internal pressure
- lithium ion
- ion battery
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Abstract
The utility model discloses a cylindrical lithium ion battery internal pressure testing arrangement, concretely relates to battery test technical field, including last sealed tube and lower sealed tube, it cup joints on lower sealed tube to go up the sealed tube, it is fixed with last connector to inlay at the top in the sealed tube, the bottom is inlayed and is fixed with down the electricity and connects in the sealed tube down, it is fixed with the stand pipe to inlay in last sealed tube left side, the inside grafting of stand pipe has the inserted bar, it has the connecting pipe to go up sealed tube right part fixedly connected with, connecting pipe right side intercommunication has pipe one end, the pipe other end is linked together with survey buret, it has the guide arm to peg graft on the survey buret, the guide arm lower part is pegged graft and is had the piston head, the piston head is filled in. The utility model discloses be favorable to testing under lithium ion battery's the complete state and the internal pressure under the charged state, enlarged test range, improved the accuracy of test.
Description
Technical Field
The utility model relates to a battery test technical field, more specifically say, the utility model relates to a pressure test device inside cylindrical lithium ion battery.
Background
The lithium ion battery has the advantages of high energy density, long cycle life, small environmental pollution and the like, and is widely applied to the fields of small-sized digital electronic products, electric tools, electric automobiles, models and the like. However, in recent years, explosion injuries to people of lithium ion batteries are common, and the safety of lithium ion batteries is very important.
Among the prior art, current lithium ion battery is after the production is accomplished, generally need carry out the spot check to lithium ion battery to test lithium ion battery's internal pressure, with the qualification rate that looks sideways at lithium ion battery, and current testing arrangement generally can only carry out atmospheric pressure leak detection to complete structure's lithium ion battery's leakproofness, tests the limitation height.
SUMMERY OF THE UTILITY MODEL
In order to overcome the above defects in the prior art, the embodiments of the present invention provide a device for testing internal pressure of a cylindrical lithium ion battery, and the technical problem to be solved by the present invention is: the existing testing device can only detect the internal pressure of the lithium ion battery, and has high testing limitation.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a cylindrical lithium ion battery internal pressure testing arrangement, includes sealed tube and lower sealed tube, it cup joints under on the sealed tube to go up the sealed tube, go up the interior top of sealed tube and inlay and be fixed with last connector, the bottom is inlayed and is fixed with down the electricity connector in the sealed tube down, it inlays and is fixed with the stand pipe to go up the sealed tube left side, the inside grafting of stand pipe has the inserted bar, it has the connecting pipe to go up sealed tube right part fixedly connected with, connecting pipe right side intercommunication has pipe one end, the pipe other end is linked together with surveying buret, it has the guide arm to peg graft on surveying buret, it has the piston head to peg graft in the guide arm lower part, the piston.
Through arranging the lithium ion battery between upper seal pipe and lower seal pipe, realized sealing up the lithium ion battery, switch-on connecting pipe and pipe, be convenient for detect the internal pressure of lithium ion battery under the complete state, later with outside consumer through the wire respectively with last joint and lower electricity connect the electricity to be connected, the lithium ion battery discharges afterwards, the internal pressure of lithium ion battery this moment is tested through the removal of measuring intraductal piston head and guide arm this moment, finally, through rotating the inserted bar, the inserted bar rotates and move left under the external screw thread effect, carry out extrusion deformation to the lithium ion battery through the inserted bar, then test the internal pressure change of lithium ion battery under the atress deformation state through surveying the buret, the test range has been enlarged, excellent in use effect, the test accuracy is high.
In a preferred embodiment, a sealing gasket is sleeved on the upper sealing pipe and positioned between the upper sealing pipe and the lower sealing pipe, so that the sealing performance between the upper sealing pipe and the lower sealing pipe is improved.
In a preferred embodiment, an O-ring is embedded and fixed on the inner side surface of the lower sealing tube, and the O-ring is positioned between the inner side surface of the lower sealing tube and the outer side surface of the upper sealing tube, so that the sealing performance between the upper sealing tube and the lower sealing tube is further improved.
In a preferred embodiment, the bottom ring is sleeved at the bottom of the lower sealing tube, the lantern ring is sleeved at the upper part of the upper sealing tube, the two connecting rods are fixedly connected to the upper part of the bottom ring, the upper parts of the two connecting rods penetrate through the sleeve and are connected with the butterfly nut through threads, the butterfly nut is positioned on the upper side of the lantern ring, the butterfly nut rotates and moves downwards along the connecting rods through rotating, the lantern ring and the upper sealing tube are driven to move downwards, so that the lithium ion battery is compressed, the lithium ion batteries with different sizes are clamped and sealed through the up-down movement of the upper sealing tube, and the application range is expanded.
In a preferred embodiment, the measuring tube and the annular side surface of the casing tube are both provided with scale marks, and the internal pressure change of the lithium ion battery is convenient to determine through observing the scale marks.
In a preferred embodiment, the right part in the guide pipe is filled with a sealing rubber sleeve, and the sealing rubber sleeve is sleeved on the inserted rod, so that gas is prevented from leaking through a gap between the inserted rod and the guide pipe.
In a preferred embodiment, the annular side surface of the inserted rod is provided with an external thread, and the inserted rod is meshed with the internal thread in the guide pipe through the external thread, so that the inserted rod can be rotated and moved, and the lithium ion battery can be extruded and deformed.
In a preferred embodiment, the left part of the inserted rod is integrally connected with a rotating handle, and the outer tube of the right part of the inserted rod is in a conical structure.
The utility model discloses a technological effect and advantage:
1. the utility model discloses a through being equipped with seal ring, last electric connector, lower electric connector, pipe, survey buret, guide arm and piston head, through the extrusion deformation of seal ring then realized clamping and testing lithium ion battery of different sizes, be favorable to testing lithium ion battery's internal pressure under complete state and under the charged state, enlarged the test range, improved the accuracy of test;
2. the utility model discloses a be equipped with inserted bar and stand pipe, realized testing lithium ion battery receiving the internal pressure under the external force deformation state, further enlarged test range.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a left side view of the present invention.
Fig. 3 is the overall structure schematic diagram of the middle measuring tube of the present invention.
Fig. 4 is a schematic view of the overall structure of the middle guide tube of the present invention.
Fig. 5 is a schematic view of the overall structure of the middle insert rod of the present invention.
Fig. 6 is a partially enlarged schematic view of a portion a in fig. 1 according to the present invention.
The reference signs are: the device comprises a lower sealing pipe 1, a bottom ring 2, a sealing gasket 3, a lantern ring 4, an upper sealing pipe 5, an upper electric connector 6, a guide pipe 7, a guide rod 8, a piston head 9, a measuring pipe 10, an O-shaped ring 11, a lower electric connector 12, a butterfly nut 13, a connecting rod 14, an inserting rod 15, an external thread 16, a guide pipe 17 and a sealing rubber sleeve 18.
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.
The utility model provides a cylindrical lithium ion battery internal pressure testing arrangement, including last sealed tube 5 and lower sealed tube 1, it cup joints on sealed tube 1 down to go up sealed tube 5, it is fixed with last connector 6 to inlay at the top in the sealed tube 5 to go up, the bottom is inlayed and is fixed with down electric connector 12 in the sealed tube 1 down, it is fixed with stand pipe 17 to inlay in 5 left sides of last sealed tube, 17 inside pegs graft of stand pipe has inserted bar 15, it has the connecting pipe to go up 5 right parts fixedly connected with of sealed tube, connecting pipe right side intercommunication has pipe 7 one end, the pipe 7 other end is linked together with survey buret 10, it has guide arm 8 to peg graft on surveying buret 10, 8 lower parts of guide arm are pegged graft and are had piston head 9, piston head.
The measuring tube 10 and the annular side surface of the casing line tube are both provided with scale marks.
As shown in fig. 1 and fig. 3, the embodiment specifically includes: the utility model discloses a lithium ion battery, including seal pipe 1, measuring pipe 10, upper seal pipe 5, lower seal pipe 1, the space between connecting pipe and pipe 7 is placed with lithium ion battery to the user, then switch on mutually between connecting pipe and pipe 7, and then realized measuring pipe 10 and upper seal pipe 5 and the space between seal pipe 1 is linked together, through observing piston head 9 and the guide arm 8 in measuring pipe 10, and confirm through the scale mark position that it is located, realized testing lithium ion battery's internal pressure under complete state, be linked together respectively with last electric connector 6 and lower electric connector 12 with outside consumer through the wire afterwards, thereby lithium ion battery has been realized discharging, continue to observe piston head 9 and guide arm 8's position this moment, realized testing lithium ion battery's internal pressure under the operating condition that discharges, the test range has been enlarged, the test accuracy has been improved.
The upper sealing pipe 5 is sleeved with a sealing gasket 3, and the sealing gasket 3 is positioned between the upper sealing pipe 5 and the lower sealing pipe 1.
An O-shaped ring 11 is fixedly embedded on the inner side surface of the lower sealing tube 1, and the O-shaped ring 11 is positioned between the inner side surface of the lower sealing tube 1 and the outer side surface of the upper sealing tube 5.
As shown in fig. 1-2, the embodiment specifically is: the user cup joints last sealed tube 5 on sealed tube 1 down, and then cup joints lantern ring 4 on connecting rod 14, revolve butterfly nut 13 on connecting rod 14 afterwards, and rotate butterfly nut 13, butterfly nut 13 rotates and moves down along connecting rod 14, and butterfly nut 13 moves down and drives sleeve pipe and last sealed tube 5 and move down in step, realized pressing from both sides tight lithium ion battery, thereby realized pressing from both sides tight not unidimensional lithium ion battery, and go up sealed tube 5 and move down and compress tightly and warp seal ring 3, seal ring 3 warp afterwards and extrude to fill between last sealed tube 5 and the lower sealed tube 1, and under O type circle 11's combined action, the leakproofness between last sealed tube 5 and the lower sealed tube 1 has been improved.
The right part in the guide tube 17 is filled with a sealing rubber sleeve 18, and the sealing rubber sleeve 18 is sleeved on the inserted rod 15.
The annular side surface of the inserted rod 15 is provided with an external thread 16, and the inserted rod 15 is meshed and connected with an internal thread in a guide pipe 17 through the external thread 16.
The left part of the inserted bar 15 is integrally connected with a rotating handle, and the outer tube at the right part of the inserted bar 15 is of a conical structure.
As shown in fig. 1, 4, 5 and 6, the embodiment specifically is as follows: the user rotates inserted bar 15, inserted bar 15 rotates and moves left along the guide bar under the effect of external screw thread 16, inserted bar 15 has moved left and has realized extrudeing lithium ion battery, lithium ion battery extrusion deformation afterwards, the user observes piston head 9 and guide arm 8 in surveying buret 10 this moment, change with the internal pressure of confirming lithium ion battery under the atress deformation state, and realized sealing the gap between guide tube 17 and inserted bar 15 through sealed gum cover 18, avoid gaseous leakage.
The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;
secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;
and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a pressure test device inside cylindrical lithium ion battery, includes sealed tube (5) and lower sealed tube (1), its characterized in that: go up sealed tube (5) and cup joint under on sealed tube (1), it inlays and is fixed with last connector (6) to go up the top in sealed tube (5), bottom is inlayed and is fixed with down electric connector (12) down in sealed tube (1), it inlays and is fixed with stand pipe (17) to go up sealed tube (5) left side, stand pipe (17) inside is pegged graft and is had inserted bar (15), it has the connecting pipe to go up sealed tube (5) right part fixedly connected with, connecting pipe right side intercommunication has pipe (7) one end, pipe (7) other end is linked together with survey buret (10), it has guide arm (8) to peg graft on surveying buret (10), it has piston head (9) to peg graft in guide arm (8) lower part, piston head (9) are filled and are surveying buret (10) inside.
2. The internal pressure testing device of claim 1, wherein: go up sealed pipe (5) and go up the cover and connect seal ring (3), and seal ring (3) are located between sealed pipe (5) and lower sealed pipe (1).
3. The internal pressure testing device of claim 1, wherein: an O-shaped ring (11) is fixedly embedded on the inner side surface of the lower sealing pipe (1), and the O-shaped ring (11) is located between the inner side surface of the lower sealing pipe (1) and the outer side surface of the upper sealing pipe (5).
4. The internal pressure testing device of claim 1, wherein: bottom ring (2) has been cup jointed to lower sealed tube (1) bottom, go up sealed tube (5) upper portion and cup jointed lantern ring (4), two connecting rods (14) of bottom ring (2) upper portion fixedly connected with, and sleeve pipe are all passed on two connecting rod (14) upper portions to be connected with butterfly nut (13) through the screw thread, butterfly nut (13) are located lantern ring (4) upside.
5. The internal pressure testing device of claim 1, wherein: and scale marks are processed on the annular side surfaces of the measuring pipe (10) and the casing line pipe.
6. The internal pressure testing device of claim 5, wherein: the right part in the guide tube (17) is filled with a sealing rubber sleeve (18), and the sealing rubber sleeve (18) is sleeved on the inserted rod (15).
7. The internal pressure testing device of claim 6, wherein: the annular side face of the inserted rod (15) is provided with an external thread (16), and the inserted rod (15) is meshed and connected with an internal thread in the guide pipe (17) through the external thread (16).
8. The internal pressure testing device of claim 6, wherein: the left part of the inserted bar (15) is integrally connected with a rotating handle, and the outer tube at the right part of the inserted bar (15) is of a conical structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020401381.5U CN211652363U (en) | 2020-03-26 | 2020-03-26 | Internal pressure testing device for cylindrical lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020401381.5U CN211652363U (en) | 2020-03-26 | 2020-03-26 | Internal pressure testing device for cylindrical lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211652363U true CN211652363U (en) | 2020-10-09 |
Family
ID=72686700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020401381.5U Active CN211652363U (en) | 2020-03-26 | 2020-03-26 | Internal pressure testing device for cylindrical lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211652363U (en) |
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2020
- 2020-03-26 CN CN202020401381.5U patent/CN211652363U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 277600 Building 1, high tech Industrial Park, 36 Dongfeng East Road, Weishan Economic Development Zone, Jining City, Shandong Province Patentee after: Shandong paizhi New Energy Technology Co.,Ltd. Address before: 277600 Building 1, high tech Industrial Park, 36 Dongfeng East Road, Weishan Economic Development Zone, Jining City, Shandong Province Patentee before: SHANDONG DELANGNENG NEW ENERGY TECHNOLOGY CO.,LTD. |
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| CP01 | Change in the name or title of a patent holder |