New energy battery top cover multifunctional testing fixture

Abstract

The utility model relates to a new energy battery top cover multifunctional testing fixture which comprises a testing fixture body, a positioning groove is formed in the bottom end face of the testing fixture body, and the positioning groove is configured to be used for positioning the outer contour of a new energy battery top cover; a positive electrode avoiding groove and a negative electrode avoiding groove are formed in the positions, corresponding to a positive electrode and a negative electrode of a top cover of the new energy battery, of the testing fixture body. A two-dimensional code detection window is arranged at the position, corresponding to the two-dimensional code arranged on the end face of the top cover of the new energy battery, of the detection tool body, and the position, on the detection tool body, of each edge of the two-dimensional code detection window is configured to deviate outwards by a preset distance relative to the standard position, on the top cover of the new energy battery, of each edge of the two-dimensional code. By adopting the detection tool disclosed by the invention, the sizes of all parts of the new energy battery top cover can be conveniently, quickly and accurately detected, so that the production quality of the top cover is ensured to be compliant, the labor cost is reduced, and the detection efficiency and accuracy are improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of new energy batteries, and in particular to a multifunctional inspection tool for a new energy battery top cover. Background Art

[0002] With economic development, new energy batteries have garnered widespread attention. Lithium batteries, for example, offer advantages such as lightweight, high capacity, long life, low self-discharge, no memory effect, and no pollution, making them widely used in electric vehicles, electric bicycles, and other equipment. During production, a QR code can be sprayed or affixed to the top cover of new energy batteries to facilitate traceability of information such as production time, batch, and production workshop. Subsequent assembly lines are typically equipped with automatic barcode scanning equipment to enter relevant information from the battery top cover into the system.

[0003] In the existing technology, the spraying or pasting of QR codes may produce certain errors, and the QR codes may deviate from the predetermined position, which will cause the automatic code scanning equipment on the subsequent assembly line to be unable to accurately align and identify. In addition to the QR code, the dimensions of other structures on the top cover also need to be guaranteed to be accurate, so when conducting quality inspections, the above dimensions need to be accurately measured. Traditional manual measurement methods consume too much manpower and time costs, and are also prone to measurement errors; it can be seen that providing a gauge that is convenient for detecting the dimensions of various components on the top cover of new energy batteries is a technical problem that needs to be solved urgently in this field. Utility Model Content

[0004] In order to solve the problems existing in the prior art, the present disclosure provides a multifunctional inspection tool for the top cover of a new energy battery.

[0005] According to a first aspect of the present disclosure, a multifunctional inspection tool for a new energy battery top cover is provided, comprising a inspection tool body, wherein a positioning groove is provided on a bottom end surface of the inspection tool body, and the positioning groove is configured to locate the outer contour of the new energy battery top cover; a positive pole avoidance groove and a negative pole avoidance groove are provided on the inspection tool body at positions corresponding to the positive and negative poles of the new energy battery top cover; a QR code detection window is provided on the inspection tool body at a position corresponding to a QR code provided on the end surface of the new energy battery top cover, wherein the position of each side of the QR code detection window on the inspection tool body is configured to be offset outward by a predetermined distance relative to the standard position of each side of the QR code on the new energy battery top cover.

[0006] In one embodiment of the present disclosure, a recessed groove larger than the QR code detection window is provided on the top end surface of the gauge body at a position corresponding to the QR code detection window, and the QR code detection window is configured to be opened at the bottom of the recessed groove.

[0007] In one embodiment of the present disclosure, the two-dimensional code detection window is constructed to be rectangular, and expansion holes protruding from the two-dimensional code detection window are provided at the four corners of the two-dimensional code detection window.

[0008] In one embodiment of the present disclosure, a detection hole is provided at a position of the inspection tool body corresponding to the liquid injection hole of the new energy battery top cover; the multifunctional inspection tool for the new energy battery top cover also includes a first detection pin body, and the first detection pin body includes a first positioning portion and a second positioning portion, wherein the first positioning portion and the second positioning portion are constructed to be able to extend into the detection hole, the outer diameter of the first positioning portion is constructed to be larger than the size of the standard liquid injection hole, and the outer diameter of the second positioning portion is constructed to be smaller than the size of the standard liquid injection hole.

[0009] In one embodiment of the present disclosure, the first detection pin body is columnar and includes a hand-held portion. The first positioning portion and the second positioning portion are respectively located at opposite ends of the hand-held portion and are constructed to be coaxially arranged with the hand-held portion.

[0010] In one embodiment of the present disclosure, the outer diameter of the hand-held portion is larger than the size of the first positioning portion and the second positioning portion, and steps are formed at the positions where the hand-held portion is connected to the first positioning portion and the second positioning portion respectively.

[0011] In one embodiment of the present disclosure, a circle of positioning flange is formed on the edge of the positioning groove; the new energy battery top cover includes a cover body and a lower plastic located on the end surface of the cover body; the outer edge of the lower plastic is constructed to have an annular gap with the inner wall of the positioning flange; the new energy battery top cover multifunctional inspection fixture also includes a second detection pin body, which is constructed to be able to move in the annular gap.

[0012] In one embodiment of the present disclosure, notches are provided on opposite sides of the positioning flange, and the outer sidewall portion of the new energy battery top cover is exposed from the notches.

[0013] In one embodiment of the present disclosure, the notch is provided at a middle position of the positioning flange in the length direction.

[0014] In one embodiment of the present disclosure, the positive electrode avoidance groove and the negative electrode avoidance groove are configured as through grooves penetrating opposite sides of the gauge body.

[0015] One of the beneficial effects of the present disclosure is that it can conveniently, quickly and accurately detect the dimensions of various parts of the top cover of a new energy battery to ensure that the production quality of the top cover complies with regulations, reduce labor costs, and improve detection efficiency and accuracy. Specifically, when conducting inspections, the staff only needs to place the top cover under the inspection fixture and snap it into the positioning slot for alignment. As long as the complete QR code can be observed in the QR code detection window, it means that the position of the QR code meets the requirements. The present disclosure improves the accuracy and convenience of the inspection fixture alignment by setting the positioning slot. The staff can easily and quickly align and quickly complete the observation through the QR code detection window without the need for tedious measurement work, which greatly improves the efficiency of the inspection.

[0016] Other features and advantages of the present disclosure will become apparent from the following detailed description of exemplary embodiments of the present disclosure with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0018] Figure 1 This is an exploded view of the structure of the new energy battery top cover and its inspection fixture disclosed in the present invention;

[0019] Figure 2 This is an exploded view of the structure of the new energy battery top cover and its inspection fixture from another angle;

[0020] Figure 3 This is a schematic diagram of the overall structure of the new energy battery top cover and its inspection fixture disclosed in the present invention;

[0021] Figure 4 It is a structural diagram of the inspection tool body disclosed in the present invention;

[0022] Figure 5 This is a structural diagram of the inspection tool body of the present invention from another angle;

[0023] Figure 6 This is the structural intention of the new energy battery top cover disclosed in this disclosure;

[0024] Figure 7 is a structural schematic diagram of a first detection pin body disclosed in the present invention;

[0025] Figure 8 2 is a top-view dimensioned diagram of a gauge body in one embodiment of the present disclosure.

[0026] Figures 1 to 8 The one-to-one correspondence between the component names and the reference numerals is as follows:

[0027] 1. Inspection fixture body; 11. Positioning groove; 12. Positioning flange; 121. Annular spacer; 122. Notch; 13. Positive electrode avoidance groove; 14. Negative electrode avoidance groove; 15. QR code detection window; 151. Sink; 152. Expansion hole; 16. Inspection hole; 2. First inspection pin; 21. First positioning part; 22. Second positioning part; 23. Handhold; 3. Second inspection pin; 4. New energy battery top cover; 41. Positive electrode; 42. Negative electrode; 43. Injection hole; 44. Lower plastic. DETAILED DESCRIPTION

[0028] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present disclosure.

[0029] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present disclosure, its application, or uses.

[0030] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0031] It should be noted that like reference numerals and letters refer to like items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0032] In this document, “upper”, “lower”, “front”, “back”, “left”, “right”, etc. are only used to indicate the relative position relationship between related parts, rather than to limit the absolute positions of these related parts.

[0033] In this article, "first", "second", etc. are only used to distinguish each other, and do not indicate the importance and order, or the prerequisite for each other's existence.

[0034] In this document, “equal”, “same”, etc. are not strictly limited in a mathematical and / or geometric sense, but also include errors that can be understood by those skilled in the art and are allowed in manufacturing or use.

[0035] refer to Figure 1 The present disclosure provides a multifunctional inspection tool for the top cover of a new energy battery, which can be used to detect the position and size of multiple structures on the top cover 4 of the new energy battery. To facilitate the following description, the structure of the top cover 4 of the new energy battery needs to be introduced first: Figure 6The new energy battery top cover 4 includes a cover body and a lower plastic 44 located on the end surface of the cover body, wherein the lower plastic 44 can mainly play the role of compressing the diaphragm, limiting the winding core and protecting the explosion-proof valve; positive pole pieces 41 and negative pole pieces 42 are respectively provided on both sides of the cover body, and an injection hole 43 is provided in the middle position, which can be used to inject electrolyte into the battery cell; in addition, a QR code can be sprayed or pasted on a blank and flat position on the cover body to facilitate traceability of information such as the production time, production batch, and production workshop of each new energy battery top cover 4.

[0036] The multifunctional inspection tool for the new energy battery top cover provided by the present disclosure can be used to detect the position of the QR code on the new energy battery top cover 4, the size and position of the lower plastic 44, and the size and position of the injection hole 43, thereby ensuring the production quality of the top cover. Figure 1 and Figure 2 The multifunctional inspection tool for the top cover of new energy battery includes an inspection tool body 1, such as Figure 5 As shown, a positioning groove 11 is provided on the bottom end surface of the inspection fixture body 1 , and the positioning groove 11 is configured to locate the outer contour of the new energy battery top cover 4 .

[0037] In a specific embodiment of the present disclosure, referring to Figure 4 and Figure 5 The edge of the positioning groove 11 is formed with a circle of positioning flanges 12, which protrude relative to the bottom surface of the inspection tool body 1, thereby enclosing the positioning groove 11. The positioning groove 11 is adapted to the outer contour of the new energy battery top cover 4. Therefore, when using the inspection tool disclosed herein, the staff only needs to place the inspection tool body 1 on the new energy battery top cover 4 and fine-tune its position so that the new energy battery top cover 4 falls into the positioning groove 11. This can prevent displacement between the new energy battery top cover 4 and the inspection tool body 1 during the inspection process, thereby achieving a positioning effect and improving the efficiency and accuracy of the inspection.

[0038] In a specific embodiment of the present disclosure, referring to Figure 3 , notches 122 are provided on opposite sides of the positioning flange 12, and the outer wall portion of the new energy battery top cover 4 is exposed from the notch 122. Specifically, the notch 122 can be provided in the middle position of the positioning flange 12 in the length direction. The sizes of the two notches 122 can be the same, and the two notches 122 are relatively provided on the two long sides of the positioning flange 12. After the inspection is completed, the staff needs to separate the inspection fixture body 1 from the new energy battery top cover 4. If the notch 122 is not provided, the new energy battery top cover 4 is completely located inside the positioning groove 11, which is not convenient for manual removal; by providing the notch 122 in the present disclosure, the staff can conveniently separate the new energy battery top cover 4 and the inspection fixture body 1 through the portion exposed outside the notch 122, thereby reducing the time required for replacement and improving the overall inspection efficiency of the assembly line.

[0039] refer to Figure 1 , a positive pole avoidance groove 13 and a negative pole avoidance groove 14 are provided on the inspection fixture body 1 at positions corresponding to the positive and negative poles of the new energy battery top cover 4. The positive pole piece 41 and the negative pole piece 42 provided on both sides of the cover protrude relative to the end face of the cover, so it is necessary to provide a positive pole avoidance groove 13 and a negative pole avoidance groove 14 on the inspection fixture body 1 for adapting to the positive pole piece 41 and the negative pole piece 42 respectively. When the new energy battery top cover 4 is located in the positioning groove 11, the positive pole piece 41 is located in the positive pole avoidance groove 13, and the negative pole piece 42 is located in the negative pole avoidance groove 14, thereby ensuring that the inspection fixture body 1 can be inspected in a posture parallel to the cover body, avoiding the protrusion of the positive pole piece 41 and the negative pole piece 42 causing the inspection fixture body 1 to be placed crookedly.

[0040] In a specific embodiment of the present disclosure, the positive electrode avoidance groove 13 and the negative electrode avoidance groove 14 are constructed as through grooves that pass through opposite sides of the gauge body 1. This can minimize the weight of the gauge body 1 and achieve a lightweight design of the gauge body 1. It is understandable that the positive electrode avoidance groove 13 and the negative electrode avoidance groove 14 can also be non-through grooves with openings at the bottom, as long as the depth of the two grooves can accommodate the positive electrode member 41 and the negative electrode member 42, respectively.

[0041] refer to Figure 2 A QR code detection window 15 is installed on the jig body 1 at the location corresponding to the QR code on the end surface of the new energy battery cover 4. Each side of the QR code detection window 15 on the jig body 1 is offset outward by a predetermined distance relative to the standard position of each side of the QR code on the new energy battery cover 4. QR codes have a standard size and position, but during production, they may shift in any direction. Therefore, an acceptable error offset must be reserved on each side.

[0042] In a specific embodiment, reference Figure 8The specific dimensions marked are that the distance between the QR code detection window 15 and the edge of the new energy battery top cover 4 on one side is 41.85±0.02 mm, and the length and width of the QR code detection window 15 itself are 9.6±0.02 mm. This dimension is set accordingly based on the standard size of the engraved code on the new energy battery top cover 4; the length and width of the standard engraved code size are 9±0.3 mm, and the standard distance between the QR code and the edge of the new energy battery top cover 4 on one side is 42.15±0.3 mm; it can be seen that the minimum distance between the QR code and the edge of the new energy battery top cover 4 is 42.15-0.3=41.85 mm, so the distance between the QR code detection window 15 and the edge of the new energy battery top cover 4 is set to 41.85±0.02 mm (±0.02 mm is to reserve the error that may occur when producing the inspection fixture body 1). The size of the QR code itself has an error of ±0.3mm. Therefore, the minimum and maximum sizes of the QR code will have a size error of 0.6mm. Therefore, it is necessary to reserve this 0.6mm error. The size of the QR code detection window 15 is 9.6±0.02mm (±0.02mm is to reserve the error that may occur when producing the inspection fixture body 1).

[0043] The present disclosure can conveniently, quickly and accurately detect the size of the QR code of the top cover 4 of the new energy battery to ensure the quality compliance of the QR code. Compared with the traditional manual measurement method, the use of a testing fixture can reduce labor costs and improve detection efficiency and accuracy. Specifically, when conducting the inspection, the staff only needs to place the top cover 4 of the new energy battery under the testing fixture body 1 and clip it into the positioning groove 11 for alignment. As long as the complete QR code can be observed in the QR code detection window 15, it means that the position of the QR code meets the requirements. The present disclosure improves the accuracy and convenience of the alignment of the testing fixture by setting the positioning groove 11. The staff can easily and quickly align and quickly complete the observation through the QR code detection window 15 without the need for tedious measurement work, which greatly improves the efficiency of the inspection.

[0044] In one embodiment of the present disclosure, reference Figure 4 A recessed groove 151, larger than the QR code detection window 15, is located on the top end surface of the gauge body 1, corresponding to the position of the QR code detection window 15. The QR code detection window 15 is constructed to be located at the bottom of the recessed groove 151. The recessed groove 151 increases the viewing angle for observing the QR code detection window 15. Workers no longer need to observe the QR code vertically, but can observe the QR code within the QR code detection window 15 from various angles diagonally above. Furthermore, the recessed groove 151 reduces the weight of the gauge body 1, contributing to its lightweight design.

[0045] It should be noted that the thickness of the gauge body 1 should not be too thin, otherwise it will lack strength and easily deform, which is not conducive to maintaining the shape stability of the gauge body 1. However, directly vertically opening the QR code detection window 15 in the gauge body 1 of a certain thickness requires the staff to observe from a vertical perspective, which is very inconvenient. Therefore, the present disclosure provides a recessed groove 151 at the position corresponding to the QR code detection window 15. A thinner structure is left at the bottom of the recessed groove 151 to enclose the QR code detection window 15, thereby widening the observation angle.

[0046] In one embodiment of the present disclosure, the two-dimensional code detection window 15 is constructed to be rectangular, preferably square, and its specific shape can be designed according to the actual shape of the two-dimensional code. Figure 5 , reaming holes 152 protruding from the QR code detection window 15 are provided at the four corners of the QR code detection window 15. By providing the reaming holes 152, the viewing angle can be further increased. Specifically, if the position of the QR code meets the requirements, the QR code will be completely exposed from the QR code detection window 15, and the four reaming holes 152 will remain blank; if the position of the QR code is slightly offset, the QR code will be blocked by the structure of the inspection fixture body 1 around the QR code detection window 15, and part of the QR code will exist in at least one reaming hole 152. If the reaming holes 152 are not provided, then when the QR code offset is very small, the staff may observe the edge pressing, and it will be difficult to judge whether the QR code is completely located in the QR code detection window 15; and if the reaming holes 152 are provided, then in this case, it is only necessary to observe whether the inside of the reaming holes 152 is blank to easily judge whether the position of the QR code meets the requirements.

[0047] In one embodiment of the present disclosure, reference Figure 2 A detection hole 16 is provided at the position of the inspection tool body 1 corresponding to the injection hole 43 of the new energy battery top cover 4. It can be understood that when the position of the injection hole 43 meets the requirements, the detection hole 16 of the inspection tool body 1 buckled on the new energy battery top cover 4 can be exactly located at the position corresponding to the injection hole 43. The multifunctional inspection tool for the new energy battery top cover also includes a first detection pin body 2. The first detection pin body 2 can be independently provided relative to the inspection tool body 1. In order to prevent the first detection pin body 2 from being lost, it can be tied to the inspection tool body 1 with a chain or a thin rope. Figure 7The first detection pin body 2 includes a first positioning portion 21 and a second positioning portion 22. The first positioning portion 21 and the second positioning portion 22 are configured to extend into the detection hole 16. The outer diameter of the first positioning portion 21 is configured to be larger than the size of the standard liquid injection hole 43, while the outer diameter of the second positioning portion 22 is configured to be smaller than the size of the standard liquid injection hole 43. Specifically, the liquid injection hole 43 has standard position and diameter dimensions, both of which have a certain acceptable error range. The position dimension is defined by the opening position and diameter of the detection hole 16. The upper limit of the diameter is detected by the first positioning portion 21, and the lower limit is detected by the second positioning portion 22.

[0048] During testing, the second positioning portion 22 of the first testing pin 2 can be inserted into the testing hole 16. If the second positioning portion 22 can pass through the testing hole 16 and extend into the injection hole 43, this indicates that the location of the injection hole 43 meets the hole opening requirements and that the diameter of the injection hole 43 is not too small, meeting the lower diameter limit requirement. The first testing pin 2 can then be turned over and the first positioning portion 21 inserted into the testing hole 16. If the first positioning portion 21 cannot be inserted into the injection hole 43, this indicates that the diameter of the injection hole 43 is not too large and meets the upper diameter limit requirement.

[0049] In a specific embodiment of the present disclosure, Figure 7 As shown, the first detection pin body 2 is cylindrical and includes a handle portion 23. The first positioning portion 21 and the second positioning portion 22 are respectively located at opposite ends of the handle portion 23 and are configured to be coaxial with the handle portion 23. The first positioning portion 21, the second positioning portion 22, and the handle portion 23 between them can be integrally formed. The staff can hold the first detection pin body 2 by the handle portion 23, making it convenient to flip the first detection pin body 2. Different markings can be set on the first positioning portion 21 and the second positioning portion 22 to distinguish the pin bodies at both ends of the handle portion 23.

[0050] Furthermore, the outer diameter of the hand-held portion 23 is larger than the size of the first positioning portion 21 and the second positioning portion 22, and steps are formed at the positions connected to the first positioning portion 21 and the second positioning portion 22, respectively. When inserting the first positioning portion 21 or the second positioning portion 22 into the detection hole 16, the staff may not be able to judge the insertion depth, and thus cannot determine whether it has been inserted into the injection hole 43. The step formed at the connection position can be used to assist in judging the insertion depth. When the pin body is inserted into the injection hole 43, the step can abut against the end face of the inspection tool body 1. In this way, when the second positioning portion 22 is inserted until the step abuts against the end face of the inspection tool body 1, and the first positioning portion 21 is inserted until the step does not contact the end face of the inspection tool body 1, it means that the position size and diameter size of the injection hole 43 are within the error range and meet the production requirements.

[0051] In one embodiment of the present disclosure, reference Figure 3 The outer edge of the lower plastic 44 is constructed to have an annular space 121 between it and the inner wall of the positioning flange 12. Specifically, when the cover body of the new energy battery top cover 4 is just stuck in the positioning groove 11, the lower plastic 44 can sink into the positioning groove 11. Since the outer diameter of the lower plastic 44 is smaller than the cover body, a circle of annular space 121 will be formed between the lower plastic 44 and the inner wall of the positioning flange 12.

[0052] The multifunctional inspection tool for the top cover of a new energy battery also includes a second inspection pin 3. The second inspection pin 3 can be independently arranged relative to the inspection tool body 1. In order to prevent the second inspection pin 3 from being lost, it can be tied to the inspection tool body 1 with a chain or a string. The second inspection pin 3 is constructed to be able to move in the annular interval 121. Specifically, the diameter of the second inspection pin 3 should be smaller than the maximum width of the annular interval 121. When conducting an inspection, the staff needs to hold the second inspection pin 3 and move it in a circle in the annular interval 121. If it can complete a circle smoothly, it means that the size of the lower plastic 44 meets the requirements; if it cannot complete a circle smoothly, it means that at least part of the size of the lower plastic 44 is too large or its installation position relative to the cover body is offset, which does not meet the production requirements.

[0053] The embodiments of the present disclosure have been described above. The above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terms used herein are selected to best explain the principles of the embodiments, their practical applications, or technical improvements in the marketplace, or to enable other persons skilled in the art to understand the embodiments disclosed herein. The scope of the present disclosure is defined by the appended claims.

Claims

1. A multifunctional inspection tool for new energy battery top cover, characterized in that: The invention comprises a check fixture body (1), wherein a positioning groove (11) is provided on the bottom end surface of the check fixture body (1), and the positioning groove (11) is configured to locate the outer contour of the new energy battery top cover (4); a positive electrode avoidance groove (13) and a negative electrode avoidance groove (14) are provided on the check fixture body (1) at positions corresponding to the positive and negative poles of the new energy battery top cover (4); and a two-dimensional code detection window (15) is provided on the check fixture body (1) at a position corresponding to the two-dimensional code provided on the end surface of the new energy battery top cover (4), wherein the positions of each side of the two-dimensional code detection window (15) on the check fixture body (1) are configured to be offset outward by a predetermined distance relative to the standard positions of each side of the two-dimensional code on the new energy battery top cover (4).

2. The multifunctional inspection tool for the top cover of a new energy battery according to claim 1 is characterized in that: A sink (151) having a size larger than the two-dimensional code detection window (15) is provided on the top end surface of the inspection tool body (1) at a position corresponding to the two-dimensional code detection window (15), and the two-dimensional code detection window (15) is constructed to be opened at the bottom of the sink (151).

3. The multifunctional inspection tool for the top cover of a new energy battery according to claim 1 is characterized in that: The two-dimensional code detection window (15) is constructed to be rectangular, and expansion holes (152) protruding from the two-dimensional code detection window (15) are provided at the four corners of the two-dimensional code detection window (15).

4. The multifunctional inspection tool for new energy battery top cover according to claim 1 is characterized in that: A detection hole (16) is provided at a position of the inspection tool body (1) corresponding to the injection hole (43) of the new energy battery top cover (4); the multifunctional inspection tool for the new energy battery top cover further comprises a first detection pin body (2), the first detection pin body (2) comprises a first positioning portion (21) and a second positioning portion (22), wherein the first positioning portion (21) and the second positioning portion (22) are configured to be able to extend into the detection hole (16), the outer diameter of the first positioning portion (21) is configured to be larger than the size of the standard injection hole (43), and the outer diameter of the second positioning portion (22) is configured to be smaller than the size of the standard injection hole (43).

5. The multifunctional inspection tool for the top cover of a new energy battery according to claim 4 is characterized in that: The first detection pin body (2) is columnar and comprises a hand-held portion (23). The first positioning portion (21) and the second positioning portion (22) are respectively located at opposite ends of the hand-held portion (23) and are configured to be coaxially arranged with the hand-held portion (23).

6. The multifunctional inspection tool for the top cover of a new energy battery according to claim 5 is characterized in that: The outer diameter of the hand-held portion (23) is larger than the size of the first positioning portion (21) and the second positioning portion (22), and steps are formed at the positions where the hand-held portion is connected to the first positioning portion (21) and the second positioning portion (22).

7. The multifunctional inspection tool for new energy battery top cover according to claim 1 is characterized in that: A circle of positioning flange (12) is formed on the edge of the positioning groove (11); the new energy battery top cover (4) includes a cover body and a lower plastic (44) located on the end surface of the cover body; the outer edge of the lower plastic (44) is constructed to have an annular gap (121) between it and the inner wall of the positioning flange (12); the new energy battery top cover multifunctional inspection tool also includes a second inspection pin body (3), and the second inspection pin body (3) is constructed to be able to move in the annular gap (121).

8. The multifunctional inspection tool for the top cover of a new energy battery according to claim 7 is characterized in that: Notches (122) are provided on opposite sides of the positioning flange (12), and the outer sidewall portion of the new energy battery top cover (4) is exposed from the notches (122).

9. The multifunctional inspection tool for the top cover of a new energy battery according to claim 8, characterized in that: The notch (122) is arranged at a middle position of the positioning flange (12) in the length direction.

10. The multifunctional inspection tool for new energy battery top cover according to claim 1 is characterized in that: The positive electrode avoidance groove (13) and the negative electrode avoidance groove (14) are constructed as through grooves that penetrate through opposite sides of the gauge body (1).

Images