CN218349363U - Cylindrical battery cell expansion measurement tool - Google Patents
Cylindrical battery cell expansion measurement tool Download PDFInfo
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- CN218349363U CN218349363U CN202222276967.5U CN202222276967U CN218349363U CN 218349363 U CN218349363 U CN 218349363U CN 202222276967 U CN202222276967 U CN 202222276967U CN 218349363 U CN218349363 U CN 218349363U
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- measuring tape
- tape
- cylindrical battery
- measure
- sliding groove
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model discloses a cylindrical battery cell expansion measuring tool, which comprises a measuring tape, a slide fastener and a pre-tightening device; the slide fastener and the pre-tightening device are respectively connected with the head end and the tail end of the measuring tape, a sliding groove is formed in the measuring tape, and a plurality of calibration lines are arranged above the sliding groove at intervals along the length direction of the measuring tape; after the head end of the measuring tape is wound around the cylindrical battery core for a circle, the sliding buckle can be in sliding fit with the sliding groove, and the pre-tightening device can enable the measuring tape to have a trend of moving towards the direction away from the cylindrical battery core, so that the measuring tape surrounding the cylindrical battery core is tightened and tightly attached to the outer wall of the cylindrical battery core. The utility model can measure the expansion amount of the outer diameter of the cylindrical battery cell, thereby providing data support for monitoring the relation between the expansion of the cylindrical battery cell and the battery capacity and the service life attenuation when the battery cell service life test is carried out; and the use is simple and convenient, and the measuring result is accurate, is convenient for accomodate.
Description
Technical Field
The utility model relates to a cylinder electricity core is experimental, concretely relates to cylinder electricity core inflation measurement frock.
Background
The expansion of the battery core is inevitably accompanied in the use process of the power battery, the expansion of the battery core has a great relation with the battery capacity and the life attenuation, and when the life test of the battery core is carried out, the expansion amount of the battery core needs to be measured at intervals, so that the relation between the expansion of the battery core and the battery capacity and the life attenuation is monitored. When the expansion amount of the cylindrical battery core is measured, the current cylindrical expansion measuring method usually measures the diameter of the cylinder, and the precision is low.
CN212988304U discloses a novel cylindrical battery cell expansion amount detection device, which consists of four parts, namely a base, an insulating guard plate, a displacement sensor and a supporting steel plate; the base is used for supporting the whole mechanism and can be horizontally placed on the workbench; the insulating protection plate completely covers the support steel plate to play an insulating role; the displacement sensor records the deformation condition of the measured object through the displacement of the probe lapped on the measured object; the supporting steel plate limits the tested object. This novel cylinder electricity core inflation volume check out test set has beneficial effects such as simple structure, measurement accuracy, can effectually survey cylinder electricity core inflation volume, control electric core inflation risk. Needless to say, the technical solution disclosed in the above patent document is a useful attempt in the technical field.
Disclosure of Invention
In view of this, an object of the present invention is to provide a cylindrical electrical core expansion measurement tool, which can measure the expansion amount of the outer diameter of the cylindrical electrical core, so as to provide data support for monitoring the relationship between the expansion of the cylindrical electrical core and the battery capacity and life attenuation when performing an electrical core life test; and this cylindrical electric core inflation measurement frock uses portably, and measuring result is accurate, is convenient for accomodate.
The utility model relates to a cylindrical battery cell expansion measuring tool, which comprises a measuring tape, a slide fastener and a pre-tightening device; the slide fastener and the pre-tightening device are respectively connected with the head end and the tail end of the measuring tape, a sliding groove is formed in the measuring tape, and a plurality of calibration lines are arranged above the sliding groove at intervals along the length direction of the measuring tape; after the head end of the measuring tape is wound around the cylindrical battery core for a circle, the sliding buckle can be in sliding fit with the sliding groove, and the pre-tightening device can enable the measuring tape to have a trend of moving towards the direction away from the cylindrical battery core, so that the measuring tape surrounding the cylindrical battery core is tightened and tightly attached to the outer wall of the cylindrical battery core.
Further, the thread slipping includes anticreep portion and connecting portion, anticreep portion passes through connecting portion with measure the head end of measuring the tape and connect, connecting portion are in measure the ascending size in width direction of tape not more than the spout is in measure the ascending size in width direction of tape, connecting portion are in measure the ascending size in length direction of tape equal to measure the thickness of tape, anticreep portion is in measure the ascending size in width direction of tape be greater than the spout is in measure the ascending size in width direction of tape.
Further, the slider further comprises a pointer part, and the position of the pointer part corresponds to the position of the calibration line in the width direction of the measuring tape.
Further, the pointer part is in an acute triangle shape.
Further, a reference line is arranged below the sliding groove and corresponds to the lower end of the anti-falling part.
Further, many the calibration lines are electric core standard external diameter size line and a plurality of electric core inflation proportion size line respectively, and are a plurality of electric core inflation proportion size line is followed the length direction interval setting of measuring the tape measure.
Further, the dimension of the anti-falling part in the width direction of the measuring tape is 1.5 to 2.5 times of the dimension of the sliding groove in the width direction of the measuring tape.
Further, the size of the chute in the width direction of the measuring tape is 0.15 to 0.35 times the width of the measuring tape.
Furthermore, preloading device includes receiver, fixed axle and wind spring, the inside of receiver is equipped with the cavity, be provided with on the receiver and be used for making the outlet ruler mouth that cavity and outside are linked together, the fixed axle is fixed the middle part of cavity, the middle part of wind spring with the fixed axle is connected, the outside of wind spring with measure the trailing end connection of tape, the thread slipping is located outside the cavity, and measure the tape winding on the wind spring.
Furthermore, the position that the inside of receiver corresponds the ruler mouth is provided with two semicircle guide blocks, two form the direction passageway between the semicircle guide block, two the interval between the outer wall of semicircle guide block is followed the radial inside increase of fixed axle.
The utility model has the advantages that:
1. the utility model can measure the expansion amount of the outer diameter of the cylindrical battery cell through the slide fastener and the calibration line, thereby providing data support for monitoring the relation between the expansion of the cylindrical battery cell and the battery capacity and the service life attenuation when the battery cell service life test is carried out;
2. the utility model has simple and convenient use, accurate measuring result and convenient storage;
3. the utility model discloses a calibration line is electric core standard external diameter dimension line and a plurality of electric core inflation proportion size line respectively, through the cooperation of pointer portion with electric core inflation proportion size line, can directly read the expanded proportion of cylinder electricity core.
Drawings
In order to make the purpose, technical scheme and beneficial effect of the utility model clearer, the utility model provides a following figure explains:
fig. 1 is a schematic view of the structure of the present invention cooperating with a cylindrical battery cell;
FIG. 2 is a schematic view of the present invention;
fig. 3 is a schematic diagram of the internal structure of the pre-tightening device of the present invention.
The drawings are numbered as follows: 1-cylindrical battery cell, 2-measuring tape, 21-sliding chute, 22-calibration line, 221-standard outside diameter dimension line of the battery cell, 222-expansion proportion dimension line of the battery cell, 23-reference line, 3-sliding buckle, 31-anti-falling part, 32-connecting part, 33-pointer part, 4-pre-tightening device, 41-storage box, 411-outlet of the tape, 412-semicircular guide block, 42-fixed shaft and 43-coil spring.
Detailed Description
The technical solution of the present invention will be described in detail with reference to the accompanying drawings and embodiments.
As shown in fig. 1 to fig. 3, the cylindrical cell expansion measurement tool in this embodiment includes a measurement tape 2, a slide fastener 3, and a pre-tightening device 4; the slide fastener 3 and the pre-tightening device 4 are respectively connected with the head end and the tail end of the measuring tape 2, a sliding groove 21 is formed in the measuring tape 2, and a plurality of calibration lines 22 are arranged above the sliding groove 21 at intervals along the length direction of the measuring tape 2; after the head end of the measuring tape 2 surrounds the cylindrical battery core 1 a week, the slide fastener 3 can be in sliding fit with the sliding groove 21, and the pre-tightening device 4 can enable the measuring tape 2 to have the trend of moving towards the direction away from the cylindrical battery core 1, so that the measuring tape 2 surrounding the cylindrical battery core 1 is tightened and tightly attached to the outer wall of the cylindrical battery core 1.
When a battery cell life test is carried out, the expansion amount of the cylindrical battery cell 1 needs to be measured at certain intervals, when the measurement is carried out, the head end of the measuring tape 2 surrounds the cylindrical battery cell 1 for a circle, then the slide fastener 3 is connected with the chute 21, at the moment, the tension force provided by the pre-tightening device 4 to the measuring tape 2 enables the measuring tape 2 to have the trend of moving towards the direction away from the cylindrical battery cell 1, so that the slide fastener 3 slides towards the direction close to the cylindrical battery cell 1 along the chute 21, finally the measuring tape 2 is tightened and tightly attached to the outer wall of the cylindrical battery cell 1, at the moment, the expansion amount of the outer diameter of the cylindrical battery cell 1 can be measured through the slide fastener 3 and the calibration line 22, and data support can be provided for monitoring the relation between the expansion of the cylindrical battery cell 1 and the battery capacity and the life attenuation; and this cylindrical electric core inflation measurement frock uses portably, and measuring result is accurate, is convenient for accomodate.
In this embodiment, the slider 3 includes the anti-separation portion 31 and the connecting portion 32, the anti-separation portion 31 is connected with the head end of the measuring tape 2 through the connecting portion 32, the size of the connecting portion 32 in the width direction of the measuring tape 2 is not greater than the size of the sliding groove 21 in the width direction of the measuring tape 2, the size of the connecting portion 32 in the length direction of the measuring tape 2 is equal to the thickness of the measuring tape 2, and the size of the anti-separation portion 31 in the width direction of the measuring tape 2 is greater than the size of the sliding groove 21 in the width direction of the measuring tape 2. After the anti-slip part 31 passes through the sliding groove 21 of the measuring tape 2, the connecting part 32 extends into the sliding groove 21, and the gap between the head end of the measuring tape 2 and the anti-slip part 31 can accommodate the measuring tape 2 on the upper side and the lower side of the sliding groove 21. The retaining portion 31 prevents the slider 3 from being removed, and the connecting portion 32 is slidably engaged with the chute 21.
In this embodiment, the slider 3 further includes a pointer portion 33, and the position of the pointer portion 33 corresponds to the position of the calibration line 22 in the width direction of the measuring tape 2; in the present embodiment, the pointer section 33 is acute-angled triangular; in the present embodiment, the reference line 23 is provided below the slide groove 21, and the reference line 23 corresponds to the lower end position of the stopper portion 31. When reading is measured, the lower end of the anti-drop part 31 is aligned with the reference line 23, and then the calibration line 22 pointed by the tip of the pointer part 33 is read, so that the accuracy of the measurement result can be further ensured.
In this embodiment, the calibration lines 22 are respectively a cell standard outside diameter line 221 and a plurality of cell expansion scale lines 222, and the cell expansion scale lines 222 are disposed at intervals along the length direction of the measuring tape 2. When the tip of the pointer part 33 points to the cell standard outside diameter dimension line 221, the cylindrical cell 1 is not expanded; the values of the plurality of cell expansion ratio dimension lines 222 are 0.5%, 1%, 1.5%, 2%. The... Eta.etc. in sequence, and the maximum value of the values of the cell expansion ratio dimension lines 222 may be 8% or 10%, which indicates that the cylindrical cell 1 is expanded by a corresponding ratio when the tip of the pointer portion 33 points to the cell expansion ratio dimension lines 222.
In this embodiment, the dimension of the anti-slip part 31 in the width direction of the measuring tape 2 is 1.5 to 2.5 times, preferably 2 times, the dimension of the sliding groove 21 in the width direction of the measuring tape 2, and further the sliding buckle 3 is ensured not to slip out.
In the present embodiment, the dimension of the chute 21 in the width direction of the measuring tape 2 is 0.15 to 0.35 times, preferably 0.25 times the width of the measuring tape 2.
In this embodiment, the pre-tightening device 4 includes a storage box 41, a fixing shaft 42 and a coil spring 43, a cavity is provided inside the storage box 41, a tape outlet 411 for communicating the cavity with the outside is provided on the storage box 41, the fixing shaft 42 is fixed in the middle of the cavity, the middle of the coil spring 43 is connected with the fixing shaft 42, the outside of the coil spring 43 is connected with the tail end of the measuring tape 2, the slide fastener 3 is located outside the cavity, and the measuring tape 2 is wound on the coil spring 43. The size of the tape outlet 411 can allow the measuring tape 2 to pass through, but not allow the anti-falling part 31 to pass through, so as to ensure that the slide fastener 3 is always positioned outside the cavity. Through pulling thread slipping 3, can make the wind spring 43 shrink to can pull out and measure tape 2 and encircle cylinder electricity core 1, the pretightning force of the direction of keeping away from cylinder electricity core 1 can be applied towards the tail end of measuring tape 2 to wind spring 43 this moment, stops the pulling back, and wind spring 43 resumes the shape, makes and measures tape 2 and moves towards the direction of withdrawal cavity, and final measurement tape 2 is tightened and is hugged closely with the outer wall of cylinder electricity core 1.
In this embodiment, two semicircular guide blocks 412 are disposed inside the storage box 41 at positions corresponding to the ruler outlet 411, a guide channel is formed between the two semicircular guide blocks 412, and the distance between the outer walls of the two semicircular guide blocks 412 increases inward along the radial direction of the fixed shaft 42. The semicircular guide block 412 enables the sliding of the measuring tape 2 to be smoother.
Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.
Claims (10)
1. The utility model provides a frock is measured to cylinder electricity core inflation which characterized in that: comprises a measuring tape (2), a slide fastener (3) and a pre-tightening device (4); the slide fastener (3) and the pre-tightening device (4) are respectively connected with the head end and the tail end of the measuring tape (2), a sliding groove (21) is formed in the measuring tape (2), and a plurality of calibration lines (22) are arranged above the sliding groove (21) at intervals along the length direction of the measuring tape (2); after the head end of the measuring tape (2) surrounds the cylindrical battery core (1) for one circle, the sliding buckle (3) can be in sliding fit with the sliding groove (21), and the pre-tightening device (4) can enable the measuring tape (2) to have a trend of moving towards the direction far away from the cylindrical battery core (1) so as to enable the measuring tape (2) surrounding the cylindrical battery core (1) to be tightened and tightly attached to the outer wall of the cylindrical battery core (1).
2. The cylindrical cell expansion measurement tool of claim 1, wherein: slide fastener (3) include anticreep portion (31) and connecting portion (32), anticreep portion (31) pass through connecting portion (32) with the head end of measuring tape (2) is connected, connecting portion (32) are in measure the ascending size in the width direction of tape (2) and be not more than spout (21) is in measure the ascending size in the width direction of tape (2), connecting portion (32) are in measure the ascending size in the length direction of tape (2) and be equal to measure the thickness of tape (2), anticreep portion (31) are in measure the ascending size in the width direction of tape (2) and be greater than spout (21) is in measure the ascending size in the width direction of tape (2).
3. The cylindrical cell expansion measurement tool of claim 2, wherein: the slider (3) further comprises a pointer part (33), and the position of the pointer part (33) corresponds to the position of the calibration line (22) in the width direction of the measuring tape (2).
4. The cylindrical cell expansion measurement tool of claim 3, wherein: the pointer part (33) is in an acute triangle shape.
5. The cylindrical cell expansion measurement tool of claim 2, characterized in that: a reference line (23) is arranged below the sliding groove (21), and the reference line (23) corresponds to the lower end position of the anti-falling part (31).
6. The cylindrical cell expansion measurement tool of any one of claims 1 to 5, wherein: the calibration lines (22) are respectively an electric core standard outer diameter dimension line (221) and a plurality of electric core expansion proportion dimension lines (222), and the electric core expansion proportion dimension lines (222) are arranged at intervals along the length direction of the measuring tape (2).
7. The cylindrical cell expansion measurement tool of claim 2, characterized in that: the dimension of the anti-falling part (31) in the width direction of the measuring tape (2) is 1.5-2.5 times of the dimension of the sliding groove (21) in the width direction of the measuring tape (2).
8. The cylindrical cell expansion measurement tool of claim 2, characterized in that: the size of the sliding groove (21) in the width direction of the measuring tape (2) is 0.15-0.35 times of the width of the measuring tape (2).
9. The cylindrical cell expansion measurement tool of claim 1, characterized in that: pretension device (4) are including receiver (41), fixed axle (42) and wind spring (43), the inside of receiver (41) is equipped with the cavity, be provided with on receiver (41) and be used for making play chi mouth (411) that cavity and outside are linked together, fixed axle (42) are fixed the middle part of cavity, the middle part of wind spring (43) with fixed axle (42) are connected, the outside of wind spring (43) with measure the trailing end connection of tape (2), thread slipping (3) are located outside the cavity, and it twines to measure tape (2) on wind spring (43).
10. The cylindrical cell expansion measurement tool of claim 9, wherein: two semicircular guide blocks (412) are arranged in the storage box (41) corresponding to the position of the ruler outlet (411), a guide channel is formed between the two semicircular guide blocks (412), and the distance between the outer walls of the two semicircular guide blocks (412) is increased inwards along the radial direction of the fixed shaft (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222276967.5U CN218349363U (en) | 2022-08-29 | 2022-08-29 | Cylindrical battery cell expansion measurement tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222276967.5U CN218349363U (en) | 2022-08-29 | 2022-08-29 | Cylindrical battery cell expansion measurement tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218349363U true CN218349363U (en) | 2023-01-20 |
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ID=84916273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222276967.5U Active CN218349363U (en) | 2022-08-29 | 2022-08-29 | Cylindrical battery cell expansion measurement tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218349363U (en) |
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2022
- 2022-08-29 CN CN202222276967.5U patent/CN218349363U/en active Active
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Address after: 401133 room 208, 2 house, 39 Yonghe Road, Yu Zui Town, Jiangbei District, Chongqing Patentee after: Deep Blue Automotive Technology Co.,Ltd. Address before: 401133 room 208, 2 house, 39 Yonghe Road, Yu Zui Town, Jiangbei District, Chongqing Patentee before: CHONGQING CHANGAN NEW ENERGY AUTOMOBILE TECHNOLOGY Co.,Ltd. |