CN217305503U

CN217305503U - Simulation battery cell for checking Hi-pot detection device and checking mechanism

Info

Publication number: CN217305503U
Application number: CN202220702323.5U
Authority: CN
Inventors: 殷晓恒
Original assignee: Tianpeng Lithium Energy Technology Huai'an Co ltd
Current assignee: Tianpeng Lithium Energy Technology Huai'an Co ltd
Priority date: 2022-03-28
Filing date: 2022-03-28
Publication date: 2022-08-26
Anticipated expiration: 2032-03-28

Abstract

The utility model discloses a simulation cell and a calibration mechanism for calibrating a Hi-pot detection device, which comprises a cell matrix, a cover body and two electrode lugs; the peripheral wall of the electric core base body is provided with a groove, and a test resistor and elastic electrode plates electrically connected to two ends of the test resistor are arranged in the groove; the cover body covers the groove and is covered with the electric core base body; one end of each of the two electrode lugs extends into the groove and is respectively electrically connected with the two elastic electrode plates; the two elastic electrode plates elastically fix the electrode lugs electrically connected with the two elastic electrode plates in the grooves by utilizing the elasticity of the two elastic electrode plates; the other ends of the two electrode lugs extend out of the electric core substrate through guide grooves formed in the electric core substrate. The utility model discloses simple structure, the equipment is convenient, can check up whether Hi-pot detection device reliably moves on line, improves the precision and the detection efficiency who detect.

Description

Simulation battery cell for checking Hi-pot detection device and checking mechanism

Technical Field

The utility model relates to a battery production technical field, in particular to emulation electricity core and check-up mechanism for checking up Hi-pot detection device.

Background

In the production process of the lithium battery, the insulation performance is reduced or short circuit is caused by the problems of burrs, metal foreign matters and the like at probability when the lithium battery is wound and a pole piece is coiled, so that the quality of a battery cell is reduced, and even the safety problem is caused; in order to prevent the defective cells from flowing into the subsequent process, the unqualified cells need to be detected in advance by a high-potential (high voltage) detection device. However, in the process of testing the battery cell, it cannot be determined whether the Hi-pot detection device has faults such as misjudgment, detection accuracy reduction and the like, so it is important to regularly check whether the Hi-pot detection device is in an accurate and effective operation state.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome not enough among the prior art, provide a emulation electricity core and check-up mechanism for checking up Hi-pot detection device, whether can check up Hi-pot detection device reliable operation on line, improve the precision and the detection efficiency who detect.

In order to achieve the purpose, the utility model adopts the following technical proposal:

in a first aspect, the utility model provides a simulation cell for checking a Hi-pot detection device, which comprises a cell matrix, a cover body and two electrode lugs;

the peripheral wall of the electric core base body is provided with a groove, and a test resistor and elastic electrode plates electrically connected to two ends of the test resistor are arranged in the groove; the cover body covers the groove and is covered with the electric core base body;

one end of each of the two electrode lugs extends into the groove and is respectively electrically connected with the two elastic electrode plates; the two elastic electrode plates elastically fix the electrode lugs electrically connected with the two elastic electrode plates in the grooves by utilizing the elasticity of the two elastic electrode plates; the other ends of the two electrode lugs extend out of the electric core substrate through guide grooves formed in the electric core substrate.

Furthermore, the test resistor is provided with two resistor pins, wherein one resistor pin is electrically connected with one of the elastic electrode plates through a first bolt, and the other resistor pin is electrically connected with the other elastic electrode plate through a second bolt.

Furthermore, the grooves comprise a first groove, and a second groove and a third groove which are respectively arranged at two sides of the first groove, the test resistor is arranged in the first groove, and the two elastic electrode plates are respectively arranged in the second groove and the third groove.

Furthermore, the length of the two electrode lugs extending out of the electric core substrate is the same as the extension length of the electrode lugs of the standard electric core.

Furthermore, the elastic electrode plate is provided with an arc-shaped elastic connecting part or a V-shaped elastic connecting part, when the elastic electrode plate is provided with the arc-shaped elastic connecting part, the electrode lug electrically connected with the elastic electrode plate is configured into an L-shaped structure, and the arc-shaped elastic connecting part elastically pushes one bending edge of the electrode lug of the L-shaped structure against the side wall of the groove through the convex arc-shaped structure; when the elastic electrode plate is provided with the V-shaped elastic connecting part, the electrode lug electrically connected with the elastic electrode plate is configured into a strip-shaped sheet structure, and the V-shaped elastic connecting part elastically abuts one end of the electrode lug of the strip-shaped sheet structure in the groove through the middle bending ridge line.

Further, the test resistor is configured with two different resistances.

Further, the resistance value of one test resistor is 99M omega, and the resistance value of the other test resistor is 101M omega.

In a second aspect, the present invention provides a Hi-pot detection apparatus calibration mechanism, which comprises any one of the first aspect of the simulation cell for calibrating the Hi-pot detection apparatus.

Compared with the prior art, the utility model discloses the beneficial effect who reaches is:

in the utility model, one end of each of the two electrode lugs is respectively electrically connected with the two elastic electrode plates, and the other end of each electrode lug extends out of the cell matrix through the guide groove arranged on the cell matrix, so that the positioning consistency of the lugs of the simulation cell and the standard cell is ensured, and the reliable clamping test of the Hi-pot detection device is facilitated, thereby checking whether the Hi-pot detection device runs reliably on line; when the two electrode lugs of the simulation battery cell are displaced and deflected, the two electrode lugs can be directly pulled out from the guide grooves for replacement, and the integral assembly and disassembly, welding and the like are not needed, so that the quick disassembly and the quick assembly are convenient to realize; and the utility model has simple structure, convenient assembly and low cost.

Drawings

Fig. 1 is a schematic structural diagram of components in a simulation cell for verifying a Hi-pot detection device according to an embodiment of the present invention;

fig. 2 is a schematic structural section view of a simulation cell for checking a Hi-pot detection apparatus according to an embodiment of the present invention;

in the figure: 1. a cell matrix; 2. a cover body; 3. an electrode tab; 4. testing the resistance; 5. an elastic electrode sheet; 6. a first bolt; 7. a second bolt; A. a first groove; B. a second groove; C. and a third groove.

Detailed Description

The present invention will be further described with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The first embodiment is as follows:

as shown in fig. 1 and fig. 2, an artificial electrical core for checking a Hi-pot detection device provided in an embodiment of the present invention includes an electrical core substrate 1, a cover body 2, and two electrical tabs 3; specifically, a groove is formed in the peripheral wall of the cell matrix 1, and a test resistor 4 and elastic electrode plates 5 electrically connected to two ends of the test resistor are installed in the groove; during assembly, the cover body 2 covers the groove and is covered with the cell matrix 1; the two electrode lugs 3 are respectively a positive electrode lug and a negative electrode lug; one end of each of the two electrode lugs 3 extends into the groove and is respectively electrically connected with the two elastic electrode plates 5; the two elastic electrode plates 5 elastically fix the electrode lugs 3 electrically connected with the two elastic electrode plates in the grooves by utilizing the elasticity of the two elastic electrode plates; the other ends of the two electrode lugs 3 extend out of the cell matrix 1 through guide grooves formed in the cell matrix 1; the length of the two electrode lugs 3 extending out of the core matrix 1 is the same as the extension length of the electrode lugs of a standard battery core, so that the Hi-pot detection device can reliably clamp the two electrode lugs 3 and then perform a high-pressure resistance strength test.

As an embodiment of the present invention, the grooves on the electrical core substrate 1 include a first groove a, and a second groove B and a third groove C respectively disposed at two sides of the first groove a, the test resistor 4 is installed in the first groove a, and the two elastic electrode sheets 5 are respectively disposed in the second groove B and the third groove C; in addition, the test resistor 4 is provided with two resistor pins, one of which is electrically connected with one of the elastic electrode pieces 5 through the first bolt 6, and the other of which is electrically connected with the other elastic electrode piece 5 through the second bolt 7.

Specifically, a first screw hole is formed in the position between the first groove A and the second groove B in the cell substrate 1, and an internal thread matched and fastened with the external thread of the screw of the first bolt 6 is arranged in the first screw hole; a second screw hole is formed in the position between the first groove A and the third groove C in the cell substrate 1, and an internal thread matched and fastened with the external thread of the screw rod of the second bolt 7 is arranged in the second screw hole; the cover body 2 is correspondingly provided with two grooves for accommodating the screw head of the first bolt 6 and the screw head of the second bolt 7 respectively, so that when the cover body 2 is covered on the cell substrate 1, the cover body 2 is not in contact with the screw head of the first bolt 6 and the screw head of the second bolt 7; in addition, through holes for the first bolt 6 and the second bolt 7 to pass through are respectively formed in the two elastic electrode plates 5; during assembly, a screw of the first bolt 6 penetrates through a through hole in one of the elastic electrode plates 5 and then rotates into the first screw hole, and one of resistor pins of the test resistor 4 is wound on the screw of the first bolt 6 and is tightly connected with one of the elastic electrode plates 5; similarly, a screw of the second bolt 7 passes through a through hole on the other elastic electrode plate 5 and then rotates into a second screw hole, and the other resistor pin is wound on the screw of the second bolt 7 and is tightly connected with the other elastic electrode plate 5; therefore, two resistor pins of the test resistor 4 are respectively reliably contacted with the two elastic electrode plates 5, and falling off is avoided.

As an embodiment of the present invention, the elastic electrode sheet 5 is configured with an arc-shaped elastic connection portion or a V-shaped elastic connection portion; when the elastic electrode plate 5 is provided with the V-shaped elastic connecting part, the electrode lug 3 electrically connected with the elastic electrode plate 5 is configured into a long strip-shaped sheet structure, and one end of the electrode lug 3 of the long strip-shaped sheet structure is elastically abutted in the groove through the middle bending ridge line by the V-shaped elastic connecting part; when the elastic electrode plate 5 is provided with the arc-shaped elastic connecting part, the electrode lug 3 electrically connected with the elastic electrode plate 5 is configured into an L-shaped structure, the arc-shaped elastic connecting part elastically abuts one bent edge of the electrode lug 3 of the L-shaped structure against the side wall of the groove through the convex arc-shaped structure, and the part, which is tightly attached to the cell matrix 1, in the other bent edge of the electrode lug 3 of the L-shaped structure is fixed by winding an insulating adhesive tape.

As an embodiment of the present invention, the test resistors 4 are configured with two different resistors, and when the ideal value of the resistor of the standard battery cell to be detected on the production line is 100M Ω, the resistance value of one of the test resistors 4 is configured to 99M Ω, and the resistance value of the other test resistor 4 is configured to 101M Ω; it should be noted that, according to the requirement of the detection precision, one of the test resistors 4 may be configured to have a resistance value lower than 100M Ω, such as 99.1M Ω, 99.2M Ω, 99.9M Ω, and the like; similarly, another test resistor 4 may be configured to have a resistance value of 100.1M Ω, 100.2M Ω, 100.9M Ω, or the like, which is higher than 100M Ω. When the Hi-pot detection device is verified on line, the simulation electric core of the test resistor 4 configured to 99M omega is transmitted to the Hi-pot detection device to be subjected to high-pressure-resistant strength test, if the test result shows that the test resistor 4 is NG, the Hi-pot detection device is considered to be normally operated, and if the test result shows that the test resistor 4 is NG, the Hi-pot detection device is considered to be abnormal; then, the simulation electric core configured into the test resistor 4 of 101M omega is transmitted to a Hi-pot detection device for high pressure resistance test, if the test result shows OK, the Hi-pot detection device is regarded as normal operation, otherwise, the Hi-pot detection device is regarded as abnormal; in the process of verifying the Hi-pot detection device by using the simulation cell, whether the clamping jaw clamping position of the Hi-pot detection device is accurate or not and whether the detection result is accurate or not can be verified, and if the detection result is abnormal, a worker can calibrate the Hi-pot detection device in time according to the abnormal condition and then put into use, so that the detection precision and the detection efficiency are improved.

The embodiment of the utility model provides a simulation electric core for verifying Hi-pot detection device, through first bolt 6 and second bolt 7 with two resistance stitch of test resistance 4 respectively with two elasticity electrode slice 5 closely fixed, avoided needing to demolish original packing when changing electrode ear 3, and electrode ear 3 and resistance stitch need tin soldering fixed drawback again, improved the steadiness; in addition, when the two electrode lugs 3 are displaced and deflected, the two electrode lugs 3 can be directly pulled out from the guide grooves for replacement without integral assembly and disassembly, welding and the like, so that the quick disassembly and the quick assembly are convenient to realize, and the installation efficiency is improved; in addition, the two electrode lugs 3 are reliably positioned, so that the clamping test of the Hi-pot detection device is facilitated, whether the Hi-pot detection device reliably operates can be verified on line, and the detection precision and the detection efficiency are improved; finally, the embodiment of the utility model provides a simulation electricity core for verifying Hi-pot detection device simple structure, equipment convenience, low cost.

Example two:

the embodiment of the utility model provides a checking mechanism of Hi-pot detection device, including the emulation electricity core that is used for checking Hi-pot detection device of embodiment one; the beneficial effects of the first embodiment can be produced, and the contents that are not described in detail in this embodiment can be referred to in the first embodiment.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. A simulation battery cell for checking a Hi-pot detection device is characterized by comprising a battery cell substrate (1), a cover body (2) and two electrode lugs (3);

the peripheral wall of the electric core matrix (1) is provided with a groove, and a test resistor (4) and elastic electrode plates (5) electrically connected to the two ends of the test resistor are arranged in the groove; the cover body (2) covers the groove and is covered with the battery cell base body (1);

one ends of the two electrode lugs (3) extend into the grooves and are respectively electrically connected with the two elastic electrode plates (5); the two elastic electrode plates (5) elastically fix the electrode lugs (3) electrically connected with the two elastic electrode plates in the grooves by utilizing the elasticity of the two elastic electrode plates; the other end of the two electrode lugs (3) extends out of the battery cell base body (1) through a guide groove formed in the battery cell base body (1).

2. The simulation cell for verifying a Hi-pot detection device according to claim 1, wherein the test resistor (4) is configured with two resistor pins, one of the resistor pins is electrically connected with one of the elastic electrode pieces (5) through the first bolt (6), and the other resistor pin is electrically connected with the other elastic electrode piece (5) through the second bolt (7).

3. The simulation cell for verifying the Hi-pot detection device as claimed in claim 2, wherein the grooves comprise a first groove (A), and a second groove (B) and a third groove (C) which are respectively arranged at two sides of the first groove (A), the test resistor (4) is arranged in the first groove (A), and the two elastic electrode pieces (5) are respectively arranged in the second groove (B) and the third groove (C).

4. The simulation cell for verifying a Hi-pot detection device according to any of claims 1 to 3, wherein the length of the two electrode tabs (3) extending out of the cell matrix (1) is the same as the extension length of the electrode tabs of a standard cell.

5. The simulation cell for checking the Hi-pot detection device according to claim 4, wherein the elastic electrode sheet (5) is configured with an arc-shaped elastic connection part or a V-shaped elastic connection part; when the elastic electrode plate (5) is provided with an arc-shaped elastic connecting part, the electrode lug (3) electrically connected with the elastic electrode plate (5) is configured into an L-shaped structure, and the arc-shaped elastic connecting part elastically pushes one bent edge of the electrode lug (3) of the L-shaped structure against the side wall of the groove through an outward-protruding arc-shaped structure; when elasticity electrode slice (5) dispose V type elastic connection portion, dispose into rectangular sheet structure with electrode lug (3) that this elasticity electrode slice (5) electricity is even, V type elastic connection portion buckle the ridge line through the centre with the one end elasticity butt of electrode lug (3) of rectangular sheet structure in the recess.

6. The simulation cell for verifying a Hi-pot test device according to claim 1 or 5, characterised in that the test resistance (4) is configured with two different resistances.

7. The simulation cell for verifying the Hi-pot detection device as claimed in claim 6, wherein one of the test resistors (4) has a resistance of 99M Ω, and the other test resistor (4) has a resistance of 101M Ω.

8. A verification mechanism of a Hi-pot detection device, which is characterized by comprising the simulation cell for verifying the Hi-pot detection device as claimed in any one of claims 1 to 7.