CN213875954U

CN213875954U - A quick detection device for lithium cell

Info

Publication number: CN213875954U
Application number: CN202022684103.8U
Authority: CN
Inventors: 凌旭; 刘翔
Original assignee: Hunan Vocational College of Chemical Technology
Current assignee: Hunan Vocational College of Chemical Technology
Priority date: 2020-11-13
Filing date: 2020-11-13
Publication date: 2021-08-03
Anticipated expiration: 2030-11-13

Abstract

The utility model discloses a quick detection device for lithium cell, which comprises a housin, the lifter plate, place the mouth and place the platform, place the mouth and locate on the lateral wall of casing, the bottom of casing is equipped with places the platform, the lifter plate sets up in the casing and the lifter plate is located the top of placing the platform, the guide bar is all worn to be equipped with at the both ends of lifter plate and slides along the guide bar, the both ends of guide bar are fixed respectively and are installed in the top and the bottom of casing, be equipped with the action bars that runs through in the casing top on the lifter plate, the one end that is close to placing the platform on the lifter plate is provided with multiunit detecting element, each detecting element includes fixed detecting element and is used for adjusting and the activity detecting element of fixed detecting element interval. The utility model discloses an adjust the interval between activity detection piece and the fixed detection piece, make the second electric contact of fixed detection piece and the first electric contact homoenergetic of activity detection piece can with the positive and negative terminal contact on the lithium cell, can be suitable for the not detection of equidimension or type lithium cell.

Description

A quick detection device for lithium cell

Technical Field

The utility model relates to a lithium cell field of relevance, concretely relates to a quick detection device for lithium cell.

Background

Lithium batteries are a type of battery using a nonaqueous electrolyte solution with lithium metal or a lithium alloy as a negative electrode material. Because the chemical characteristics of lithium metal are very active, the requirements on the environment for processing, storing and using the lithium metal are very high. Therefore, lithium batteries have not been used for a long time. With the development of science and technology, lithium batteries have become the mainstream nowadays.

China is the biggest manufacturing base of lithium batteries, the second largest lithium battery producing country and export countries in the world, and lithium batteries already account for 40% of the market share of the world. In 2011, the yield of lithium batteries in China reaches 29.66 hundred million, the year-by-year increase is 10.88%, the export of lithium batteries in China is 43.83 ten thousand dollars, and the trade counter error is realized at 33500.77 ten thousand dollars, which is detailed in the analysis report of market demand prediction and investment strategy planning in lithium battery industry in the future. The current lithium cell, especially automobile-used lithium cell, its terminal often all is at the top of casing, and the distance between two terminals of the lithium cell of equidimension in addition is different, all needs relevant measuring equipment, can't accomplish the general purpose and measures, and the check out test set among the prior art can only adopt to detect the lithium cell that corresponds type or size, can't be applicable to the short-term test of multiple type or the lithium cell of equidimension not.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a lithium cell short-term test device, through adjusting the interval between activity detection piece and the fixed detection piece, make the second electric contact of fixed detection piece and the first electric contact homoenergetic of activity detection piece with the positive and negative terminal contact on the lithium cell, can be suitable for the not detection of equidimension or type lithium cell.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a quick detection device for lithium cell, includes casing, lifter plate, places the mouth and places the platform, it locates to place the mouth on the lateral wall of casing, the bottom of casing is equipped with place the platform, the lifter plate sets up in the casing just the lifter plate is located place the top of platform, the guide bar is all worn to be equipped with at the both ends of lifter plate and is followed the guide bar slides, the both ends of guide bar fixed respectively install in the top and the bottom of casing, its characterized in that, be equipped with on the lifter plate run through in the action bars at casing top, be close to on the lifter plate the one end of placing the platform is provided with multiunit detecting element, each detecting element include fixed detecting element, be used for adjust with the activity detecting element of fixed detecting element interval.

Preferably, the activity detection piece includes movable block, first electric contact and first pressure spring, the movable block is fixed the lifter plate is kept away from the one end of action bars, first pressure spring's one end with first electric contact fixed connection, first pressure spring's the other end with movable block fixed connection, be equipped with on the lifter plate and be used for the draw-in groove that the movable block removed.

Preferably, the one end of keeping away from first electric contact piece on the movable block is fixed with the connecting rod, extend to on the connecting rod one end welding in the draw-in groove has the lantern ring, the cover is equipped with the bracing piece of level placement in the lantern ring, the bracing piece at least part wear to locate the draw-in groove and expose in the outside of lifter plate.

Preferably, the fixed detection part comprises a first fixed block, a second compression spring and a second electric contact piece, the first fixed block is fixed at one end, far away from the operating rod, of the lifting plate, one end of the second compression spring is connected with the first fixed block, and the other end of the second compression spring is connected with the second electric contact piece.

Preferably, the first electric contact is horizontally fixed at the lower end of the first compression spring, and the second electric contact is horizontally fixed at the lower end of the second compression spring.

Preferably: the detection unit further comprises an indicator light, the first fixed block and the movable block are connected to the indicator light through a lead, and the indicator light is arranged at one end, close to the operating rod, of the lifting plate.

Preferably: the side wall of the operating rod is provided with a plurality of limiting grooves which are distributed longitudinally at equal intervals, each limiting groove is a downward inclined hole, the top of the shell is close to the position of the operating rod and is provided with a second fixing block which is vertically arranged, the second fixing block is provided with a jack with the same inclination angle as the limiting grooves, and the jack is locked with the limiting grooves through a fixing pin.

Preferably: the diameter of the jack is equal to that of the limiting groove.

Preferably: the upper surface of the placing table is covered with a layer of friction pad.

Preferably: the guide rod is sleeved with a supporting spring, the lower end of the supporting spring is fixedly connected to the bottom of the shell, and the upper end of the supporting spring is fixedly connected to the lifting plate.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses an adjust the interval between activity detection piece and the fixed detection piece, the second electric contact that makes fixed detection piece and the first electric contact homoenergetic of activity detection piece can with the positive and negative terminal contact on the lithium cell, can be suitable for the detection of the lithium cell of equidimension or type not, and can compress tightly through the lifter plate when detecting, guarantee the terminal contact stability of each electric contact and lithium cell, and through the jack, the spacing groove, the fixed pin structure is with clamp plate and action bars locking, make the clamp plate fixed and can lead to the electricity for a long time and detect, and convenient for operation.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the middle movable block of the present invention.

Fig. 3 is an enlarged schematic view of a in fig. 1.

In the figure: 1-shell, 2-lifting plate, 3-placing opening, 4-placing table, 5-operating rod, 6-first fixed block, 7-movable block, 9-second compression spring, 10-second electric contact piece, 11-indicator light, 12-clamping groove, 13-connecting rod, 14-lantern ring, 15-supporting rod, 16-limiting groove, 17-second fixed block, 18-jack, 19-fixed pin, 20-guide rod, 21-supporting spring, 22-friction pad, 23-first electric contact piece and 24-first compression spring.

Detailed Description

As shown in fig. 1, in the embodiment of the present invention, a fast detection device for lithium battery, including casing 1, lifter plate 2, place mouth 3 and place platform 4, place mouth 3 on locating the lateral wall of casing 1, the bottom of casing 1 is equipped with places platform 4, lifter plate 2 sets up in casing 1 and lifter plate 2 is located the top of placing platform 4, lifter plate 2's both ends are all worn to be equipped with guide bar 20 and are slided along guide bar 20 (guide bar 20 and lifter plate 2 clearance fit), guide bar 20's both ends are fixed respectively and are installed in the top and the bottom of casing 1, be equipped with the action bars 5 that run through in casing 1 top on lifter plate 2, the one end that is close to placing platform 4 on lifter plate 2 is provided with multiunit detecting element, each detecting element includes fixed detecting element, be used for adjust with the activity detecting element of fixed detecting element interval. Through adjusting the interval between activity detection piece and the fixed detection piece, make the second electric contact of fixed detection piece and the first electric contact homoenergetic of activity detection piece can with the positive and negative terminal contact on the lithium cell, can be suitable for the detection of the lithium cell of equidimension or type not.

As shown in fig. 1, the activity detection member includes a movable block 7, a first electric contact 23 and a first hold-down spring 24, the movable block 7 is fixed at one end of the lifting plate 2 far away from the operating rod 5, one end of the first hold-down spring 24 is fixedly connected with the first electric contact 23, the other end of the first hold-down spring 24 is fixedly connected with the movable block 7, and the lifting plate 2 is provided with a clamping groove 12 for the movable block 7 to move. Adopt hold-down spring to be used for preventing first electric contact and the terminal rigid contact of lithium cell, utilize the buffering of spring to guarantee that contact between them is abundant.

As shown in fig. 1 and 2, a connecting rod 13 is fixed at one end of the movable block 7 far away from the first electrical contact piece 23, the connecting rod 13 is vertically arranged, a lantern ring 14 is welded at one end of the connecting rod 13 extending into the clamping groove 12, a horizontally placed supporting rod 15 is sleeved in the lantern ring 14, and at least part of the supporting rod 15 penetrates through the clamping groove 12 and is exposed outside the lifting plate 2. The supporting rod is manually stirred to drive the movable block to move along the direction far away from or close to the fixed block, so that the distance between the movable block and the fixed block is adjusted.

As shown in fig. 1, the fixed detecting members each include a first fixed block 6, a second pressing spring 9, and a second electrical contact 10, the first fixed block 6 is fixed at one end of the lifting plate 2 far from the operating rod 5, one end of the second pressing spring 9 is connected to the first fixed block 6, and the other end of the second pressing spring 9 is connected to the second electrical contact 10. Adopt hold-down spring to be used for preventing first electric contact and the terminal rigid contact of lithium cell, utilize the buffering of spring to guarantee that contact between them is abundant.

As shown in fig. 1, the first electric contact 23 is horizontally fixed at the lower end of the first pressing spring 24, the second electric contact 10 is horizontally fixed at the lower end of the second pressing spring 9, the detection unit further comprises an indicator light 11, the first fixed block 6 and the movable block 7 are connected to the indicator light 11 through wires (not shown in the figure), and the indicator light 11 is arranged at one end of the lifting plate 2 close to the operating rod 5. The warning of utilizing the pilot lamp can judge that first electric contact and second electric contact have put in place with the terminal contact of lithium cell, need adjust the interval of first fixed block and movable block again if not warn.

As shown in fig. 3, a plurality of limiting grooves 16 are formed in the side wall of the operating rod 5, the limiting grooves 16 are longitudinally and equidistantly distributed, each limiting groove 16 is a downwardly inclined hole, a second fixing block 17 is vertically arranged at the top of the casing 1 and at a position close to the operating rod 5, a jack 18 having the same inclination angle as that of the limiting groove 16 is formed in the second fixing block 17, and the jack 18 and the limiting groove 16 are locked by a fixing pin 19. The operating rod and the second fixing block are fixed through the fixing pin, so that the position of the operating rod is kept fixed, and continuous compression is facilitated to detect.

The diameter of jack 18 equals with the diameter of spacing groove 16, and the upper surface of placing platform 4 covers has one deck friction pad 22 for thereby prevent that lithium cell and placing platform from producing relative slip and influencing the testing result, the cover is equipped with supporting spring 21 on the guide bar 20, and supporting spring 21's lower extreme fixed connection is in the bottom of casing 1, and supporting spring 21's upper end fixed connection is on lifter plate 2. Utilize supporting spring to support the lifter plate and be convenient for the lifter plate to reset after the pushing down of action bars.

In order to further explain the invention and creation of the present invention, the operation principle of the present invention is combined for explanation, as shown in fig. 1 to fig. 3, when in use, the placing opening 3 is opened, the lithium battery is placed on the placing table 4 in the housing 1, one of the terminals of the lithium battery is right opposite to the first fixed block 6 above, the distance between the movable block 7 and the first fixed block 6 is adjusted according to the distance between the two terminals of the lithium battery, and the movable block 7 is located right above the other terminal of the lithium battery; the operating rod 5 is manually pressed downwards to drive the lifting plate 2 to move downwards, so that the second electric contact piece 10 and the first electric contact piece 23 are respectively pressed on two different binding posts (positive and negative binding posts) of the lithium battery, a circuit is conducted, and the power supply condition of the lithium battery is detected in a reaction manner through the warning of the indicating lamp 11; after pushing down lifter plate 2, insert the fixed pin 19 of slope in jack 18, the lower extreme of fixed pin 19 stretches into spacing inslot 16 to lock action bars 5 and second fixed block 17, be used for continuously detecting the lithium cell, after the predetermined time, pull out fixed pin 19 simultaneously lifter plate 2 rebound under supporting spring 21's effect, make second electric contact piece 10 break away from simultaneously with two terminals of first electric contact piece 23 and lithium cell, this time detects the end.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A quick detection device for a lithium battery comprises a shell (1), a lifting plate (2), a placing opening (3) and a placing table (4), wherein the placing opening (3) is arranged on the side wall of the shell (1), the placing table (4) is arranged at the bottom of the shell (1), the lifting plate (2) is arranged in the shell (1) and the lifting plate (2) is positioned above the placing table (4), guide rods (20) are respectively arranged at two ends of the lifting plate (2) in a penetrating manner and slide along the guide rods (20), two ends of each guide rod (20) are respectively and fixedly arranged at the top and the bottom of the shell (1), and the quick detection device is characterized in that an operating rod (5) penetrating through the top of the shell (1) is arranged on the lifting plate (2), and a plurality of groups of detection units are arranged at one end, close to the placing table (4), of the lifting plate (2), each detection unit comprises a fixed detection piece and a movable detection piece for adjusting the distance between the fixed detection piece and the detection unit.

2. The rapid detection device for the lithium battery as claimed in claim 1, wherein: the activity detects the piece and includes movable block (7), first electric contact (23) and first pressure spring (24), movable block (7) are fixed lifter plate (2) is kept away from the one end of action bars (5), the one end of first pressure spring (24) with first electric contact (23) fixed connection, the other end of first pressure spring (24) with movable block (7) fixed connection, be equipped with on lifter plate (2) and be used for draw-in groove (12) that movable block (7) removed.

3. The rapid detection device for the lithium battery as claimed in claim 2, wherein: keep away from on movable block (7) the one end of first electric contact piece (23) is fixed with connecting rod (13), extend on connecting rod (13) to one end welding in draw-in groove (12) has lantern ring (14), the cover is equipped with horizontally arranged bracing piece (15) in the lantern ring (14), bracing piece (15) at least part is worn to locate draw-in groove (12) and is exposed in the outside of lifter plate (2).

4. The rapid detection device for the lithium battery as claimed in claim 2, wherein: fixed detection piece all includes first fixed block (6), second pressure spring (9) and second electric contact (10), first fixed block (6) are fixed keep away from on lifter plate (2) the one end of action bars (5), the one end of second pressure spring (9) with first fixed block (6) are connected, the other end of second pressure spring (9) with second electric contact (10) are connected.

5. The rapid detection device for the lithium battery as claimed in claim 4, wherein: the first electric contact piece (23) is horizontally fixed at the lower end of the first compression spring (24), and the second electric contact piece (10) is horizontally fixed at the lower end of the second compression spring (9).

6. The rapid detection device for the lithium battery as claimed in claim 5, wherein: the detection unit further comprises an indicator light (11), the first fixed block (6) and the movable block (7) are connected to the indicator light (11) through a lead, and the indicator light (11) is arranged at one end, close to the operating rod (5), of the lifting plate (2).

7. The rapid detection device for the lithium battery as claimed in claim 2, wherein: offer a plurality of spacing groove (16) that vertical equidistance distributes on the lateral wall of action bars (5), each spacing groove (16) are the hole of downward sloping, the top of casing (1) just is close to the position of action bars (5) is equipped with second fixed block (17) of vertical arrangement, seted up on second fixed block (17) with jack (18) that spacing groove (16) inclination is the same, jack (18) with spacing groove (16) are locked through a fixed pin (19).

8. The rapid detection device for the lithium battery as claimed in claim 7, wherein: the diameter of the insertion hole (18) is equal to that of the limiting groove (16).

9. The rapid detection device for the lithium battery as claimed in claim 1, wherein: the upper surface of the placing table (4) is covered with a layer of friction pad (22).

10. The rapid detection device for the lithium battery as claimed in claim 1, wherein: the guide rod (20) is sleeved with a supporting spring (21), the lower end of the supporting spring (21) is fixedly connected to the bottom of the shell (1), and the upper end of the supporting spring (21) is fixedly connected to the lifting plate (2).