Insulating layer withstand voltage detection mechanism of cylindrical lithium battery

Abstract

The utility model discloses a cylindrical lithium battery insulating layer withstand voltage detection mechanism, which comprises a base and a portal frame, the base is provided with a first vertical moving device, a lower pressing seat is arranged above the first vertical moving device, the upper wall of the lower pressing seat is provided with a plurality of first electrode grooves which are arranged at intervals, the portal frame is provided with a longitudinal moving frame, and the longitudinal moving frame is provided with a plurality of second electrode grooves which are arranged at intervals. The longitudinal moving frame is provided with a second vertical moving device, the second vertical moving frame is provided with an upper pressing seat matched with the lower pressing seat, the upper pressing seat is provided with a second electrode groove matched with the first electrode groove, a cylindrical cavity is defined by the first electrode groove and the second electrode groove, and a positioning plate is arranged on one side of the portal frame; the positioning plate is provided with a plurality of power supply pole columns, and the first electrode groove and the second electrode groove are respectively connected with a detection system. When the power supply pole is electrified and any one of the first electrode groove and the second electrode groove is conductive, the detection system can know whether the insulating layer of the cylindrical lithium battery meets the requirement or not.

Description

Technical Field

[0001] The utility model relates to the field of cylindrical lithium battery detection equipment, in particular to a withstand voltage detection mechanism for the insulating layer of a cylindrical lithium battery. Background Technique

[0002] A lithium battery is a type of battery with lithium metal or lithium alloy as the positive / negative electrode material and using a non-aqueous electrolyte solution. In the existing detection of cylindrical lithium batteries, after the insulating paint is sprayed on its surface, a withstand voltage test needs to be carried out on the insulating layer. The existing test method generally uses a manipulator to clamp the cylindrical lithium battery and then performs the test singly.

[0003] For example, in Chinese Patent CN202221870492.6, its test method is relatively complex and not applicable to batch production detection, and the detection efficiency is low. Summary of the Utility Model

[0004] The main purpose of the utility model is to propose a withstand voltage detection mechanism for the insulating layer of a cylindrical lithium battery, aiming to adopt an automated mechanism to realize the simultaneous testing of multiple cylindrical lithium batteries, and the testing is relatively stable.

[0005] To achieve the above object, the utility model proposes a withstand voltage detection mechanism for the insulating layer of a cylindrical lithium battery, including:

[0006] A base, the base is provided with a first vertical moving device, a pressing seat is arranged above the first vertical moving device, and a plurality of first electrode grooves are arranged at intervals on the upper wall of the pressing seat;

[0007] A gantry, the gantry is provided with a longitudinal moving frame, the longitudinal moving frame is provided with a second vertical moving device, the second vertical moving device is provided with an upper pressing seat matched with the lower pressing seat, and the upper pressing seat is provided with a second electrode groove matched with the first electrode groove,

[0008] The first electrode groove and the second electrode groove enclose a cylindrical chamber, a positioning plate is arranged on one side of the gantry, and a plurality of power electrode posts are arranged on the positioning plate. The first electrode groove and the second electrode groove are respectively connected to a detection system.

[0009] In actual tests, the previous process holds and places multiple cylindrical lithium batteries in the first electrode groove of the base. Then, the upper pressing seat moves above the base (away from the base during clamping and placement to avoid interference). Next, the first vertical moving device and the second vertical moving device move towards each other, and the first electrode groove and the second electrode groove are respectively fitted to the upper wall surface and the lower wall surface of the cylindrical lithium battery. At the same time, the power electrode post is electrically connected to the electrode end of the cylindrical lithium battery. When the power electrode post is energized and either the first electrode groove or the second electrode groove conducts electricity, the detection system can then determine whether the insulating layer of the cylindrical lithium battery meets the requirements. The voltage can be set according to actual requirements, such as 36V, 100V, etc.; this test method is relatively simple and can be applied to test a relatively large number of cylindrical lithium batteries, effectively improving the test efficiency;

[0010] The principle of the detection system is that when it is energized, the insulating layer does not meet the standard, and when the energized voltage is within a predetermined range, it meets the predetermined requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the cooperation between the gantry and the upper pressing seat Figure 1 ;

[0012] Figure 2 It is a schematic diagram of the cooperation between the gantry and the upper pressing seat Figure 2 ;

[0013] Figure 3 It is a schematic diagram of the cooperation between the base and the lower pressing seat.

[0014] In the figure,

[0015] 1 is the base, 11 is the lower pressing seat, 12 is the first electrode groove,

[0016] 2 is the gantry, 20 is the longitudinal moving frame, 21 is the upper pressing seat, 22 is the second electrode groove,

[0017] 31 is the first vertical moving device, 32 is the second vertical moving device,

[0018] 4 is the power electrode post,

[0019] 5 is the longitudinal seat,

[0020] 6 is the conductive layer.

[0021] 100 is the cylindrical lithium battery. DETAILED DESCRIPTION OF THE INVENTION

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] It should be noted that if there are directional indications (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial...) involved in the embodiments of the present invention, then such directional indications are only used to explain the relative positional relationship, movement conditions, etc. between components in a certain specific posture (as shown in the accompanying drawings). If this specific posture changes, then the directional indications will also change accordingly.

[0024] In addition, if there are descriptions such as "first" or "second" involved in the embodiments of the present invention, then such descriptions of "first" or "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0025] As Figures 1 to 3 shown, a pressure resistance detection mechanism for the insulating layer of a cylindrical lithium battery includes:

[0026] A base 1, the base 1 is provided with a first vertical moving device 31, above the first vertical moving device 31 is provided with a pressing seat 11, and the upper wall of the pressing seat 11 is provided with a plurality of first electrode grooves 12 arranged at intervals;

[0027] A gantry 2, the gantry 2 is provided with a longitudinal moving frame 20, the longitudinal moving frame 20 is provided with a second vertical moving device 32, and the second vertical moving device is provided with an upper pressing seat 21 that cooperates with the pressing seat 11. The upper pressing seat 21 is provided with a second electrode groove 22 that cooperates with the first electrode groove 12.

[0028] The first electrode groove 12 and the second electrode groove 22 enclose a cylindrical chamber. A positioning plate is provided on one side of the gantry 2, and the positioning plate is provided with a plurality of power electrode posts 4. The first electrode groove 12 and the second electrode groove 22 are respectively connected to a detection system.

[0029] In actual tests, the previous process holds and places multiple cylindrical lithium batteries in the first electrode groove 12 of the base 1. Then, the upper pressing seat 21 moves above the base 1 (away from the base 1 during clamping and placement to avoid interference). Then, the first vertical moving device 31 and the second vertical moving device 32 move towards each other, and the first electrode groove 12 and the second electrode groove 22 are respectively fitted to the upper wall surface and the lower wall surface of the cylindrical lithium battery. At the same time, the power electrode post 4 is electrically connected to the electrode end of the cylindrical lithium battery. When the power electrode post 4 is energized and either the first electrode groove 12 or the second electrode groove 22 conducts electricity, the detection system can then know whether the insulating layer of the cylindrical lithium battery meets the requirements. The voltage therein can be set according to actual requirements, such as 36V, 100V, etc.; this test method is relatively simple and can be applied to test a relatively large number of cylindrical lithium batteries, effectively improving the test efficiency;

[0030] The principle of the detection system is that when it is energized, the insulating layer does not meet the standard, and when the energized voltage is within a predetermined range, it meets the predetermined requirements.

[0031] Specifically, the first vertical moving device 31 includes a plurality of first guide rods provided on the base 1, a first sliding sleeve slidably mounted on the first guide rods, the lower pressing seat 11 is mounted on the first sliding sleeve, and the base 1 is provided with a first driving device for driving the lower pressing seat 11 to slide.

[0032] In the embodiment of the present invention, the first driving device is a first telescopic motor provided on the base 1, and the driving end of the first telescopic motor is connected to the lower wall of the lower pressing seat 11, thereby realizing the upward movement of the lower pressing seat 11.

[0033] Specifically, the longitudinal moving frame 20 includes longitudinal guide rails spaced apart on the gantry 2, longitudinal sliders slidably mounted on the longitudinal guide rails, and a longitudinal lead screw pair for driving the longitudinal sliders to move. A longitudinal seat 5 is provided between the longitudinal sliders, and the dislocation of the upper pressing seat 21 is realized through the setting of the longitudinal sliders.

[0034] In the embodiment of the present invention, the first vertical moving device 31 includes a second sliding sleeve provided on the longitudinal seat 5, a second guide rod slidably mounted on the second sliding sleeve, and a second driving device for driving the second guide rod to slide. The upper pressing seat 21 is provided on the second guide rod.

[0035] Specifically, the second driving device is a second telescopic motor. Thereby realizing the vertical movement of the upper pressing seat 21.

[0036] In the embodiment of the present invention, the first electrode groove 12 and the second electrode groove 22 are provided with a conductive layer 6.

[0037] Specifically, an insulating elastic layer (not shown) is provided between the conductive layer 6 and the first electrode groove 12 or the second electrode groove 22. By providing the insulating elastic layer, a predetermined deformation can be ensured, and thus the conductive layer 6 can be ensured to be attached to the outer peripheral wall of the cylindrical lithium battery.

[0038] In the embodiment of the present invention, the first electrode groove 12 and the second electrode groove 22 are semicircular.

[0039] Specifically, the positioning plate is connected to the third telescopic motor, which drives the movement of the power electrode post 4, thereby realizing electrical connection.

[0040] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structural transformation made under the inventive concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A cylindrical lithium battery insulation layer withstand voltage detection mechanism, characterized in that: include: A base, wherein the base is provided with a first vertical moving device, a lower pressing seat is provided above the first vertical moving device, and a plurality of first electrode grooves are provided at intervals on an upper wall of the lower pressing seat; The gantry is provided with a longitudinal moving frame, the longitudinal moving frame is provided with a second vertical moving device, the second vertical moving device is provided with an upper pressing seat matched with a lower pressing seat, the upper pressing seat is provided with a second electrode groove matched with the first electrode groove, The first electrode slot and the second electrode slot form a cylindrical chamber. A positioning plate is provided on one side of the gantry. The positioning plate is provided with a plurality of power poles. The first electrode slot and the second electrode slot are respectively connected to the detection system.

2. The insulating layer withstand voltage detection mechanism of a cylindrical lithium battery as claimed in claim 1, characterized in that: The first vertical moving device includes a plurality of first guide rods arranged on the base, a first sliding sleeve slidably mounted on the first guide rods, the lower pressure seat is mounted on the first sliding sleeve, and the base is provided with a first driving device that drives the lower pressure seat to slide.

3. The insulating layer withstand voltage detection mechanism of a cylindrical lithium battery as claimed in claim 2, characterized in that: The first driving device is a first telescopic motor arranged on the base, and the driving end of the first telescopic motor is connected to the lower wall of the lower pressing seat.

4. The insulating layer withstand voltage detection mechanism of a cylindrical lithium battery as claimed in claim 1, characterized in that: The longitudinal moving frame comprises longitudinal guide rails spaced apart on the gantry, longitudinal sliders slidably mounted on the longitudinal guide rails, and longitudinal screw rod pairs for driving the longitudinal sliders to move, and longitudinal seats are arranged between the longitudinal sliders.

5. The insulating layer withstand voltage detection mechanism of a cylindrical lithium battery as claimed in claim 4, characterized in that: The first vertical moving device comprises a second sliding sleeve arranged on the longitudinal seat, a second guide rod slidably mounted on the second sliding sleeve, and a second driving device for driving the second guide rod to slide, and the upper pressing seat is arranged on the second guide rod.

6. The insulating layer withstand voltage detection mechanism of a cylindrical lithium battery as claimed in claim 5, characterized in that: The second driving device is a second telescopic motor.

7. The insulating layer withstand voltage detection mechanism of a cylindrical lithium battery as claimed in claim 1, characterized in that: The first electrode groove and the second electrode groove are provided with a conductive layer.

8. The insulating layer withstand voltage detection mechanism of a cylindrical lithium battery as claimed in claim 7, characterized in that: An insulating elastic layer is provided between the conductive layer and the first electrode slot or the second electrode slot.

9. The insulating layer withstand voltage detection mechanism of a cylindrical lithium battery as claimed in claim 1, characterized in that: The first electrode groove and the second electrode groove are semicircular.

10. The insulating layer withstand voltage detection mechanism of a cylindrical lithium battery as claimed in claim 7, characterized in that: The positioning plate is connected to the third telescopic motor.

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