Special-shaped battery pack gravity center measuring device and method

Abstract

A special-shaped battery pack gravity center measuring device disclosed by the present invention comprises a supporting assembly, a bearing assembly and an angle indicating assembly, the supporting assembly is provided with a supporting end, the bearing assembly is movably placed on the supporting end, the supporting end is provided with a zero-scale vertical marking line, the angle indicating assembly comprises a graduated scale and a leveling pointer, and the graduated scale is provided with a vertical marking line. The bearing assembly is provided with a zero-scale vertical marked line, the scale ruler is fixed to the side wall of the bearing assembly, the leveling pointer is fixed to the side wall of the bearing assembly, and when the bearing assembly is horizontal, the leveling pointer coincides with the zero-scale vertical marked line. By reading the distance between the graduated scale and the end face of the battery pack, the gravity center of the battery pack is accurately measured, the gravity center measuring method of the special-shaped battery pack is simplified, the gravity center of the battery pack is economically and reliably measured, and the working efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of battery detection, and in particular to a device and method for measuring the center of gravity of a special-shaped battery pack. Background Art

[0002] With the development of marine resources and the increasing need for specialization of marine equipment, underwater unmanned submersibles are a new type of equipment that can assist or replace humans in unmanned operations in complex underwater special environments. They are widely used in scientific research, civil operations, deep-sea exploration, etc., and have become an important tool for marine research and development. However, due to the influence of different unmanned aircraft use conditions or overall indicators on the size and weight, the shape of the battery compartment is generally quite special, and often needs to be designed as a special-shaped battery pack to meet the requirements of energy and other indicators. Aircraft generally have clear requirements for navigation attitude and center of gravity. If the center of gravity is unstable, it is very easy to cause problems when the aircraft is used. The measurement of the center of gravity of special-shaped battery packs has become increasingly important.

[0003] At present, special-shaped lithium battery packs, as part of the aircraft power system, are first installed on the overall equipment, and then the center of gravity is adjusted as the overall equipment is installed, which invisibly increases the workload of the overall equipment's weight balance. If there is a problem with the center of gravity adjustment, the battery pack cannot be reworked. Another way to measure the center of gravity of special-shaped battery packs is to customize the development of weighing equipment based on the shape of the battery pack, which is time-consuming and labor-intensive.

[0004] Therefore, it is necessary to design a device and method for measuring the center of gravity of a special-shaped lithium battery pack to simplify the measurement of the center of gravity of the special-shaped battery pack and improve work efficiency. Summary of the invention

[0005] The purpose of the present invention is to overcome the above technical deficiencies and to provide a device and method for measuring the center of gravity of a special-shaped battery pack, which can simplify the measurement of the center of gravity of the special-shaped battery pack and improve work efficiency.

[0006] In order to achieve the above technical objectives, the present invention adopts the following technical solutions: The present invention provides a device for measuring the center of gravity of a special-shaped battery pack, comprising: A support assembly having a support end, wherein a zero scale vertical marking line is provided on the support end; A load-bearing assembly, movably placed on the supporting end; and The angle indicating assembly comprises a scale and a leveling pointer, wherein the scale is fixed on the side wall of the bearing assembly, the leveling pointer is fixed on the side wall of the bearing assembly, and when the bearing assembly is horizontal, the leveling pointer coincides with the zero scale vertical marking line.

[0007] In some embodiments, the supporting end forms a pointed end surface in contact with the bearing assembly.

[0008] In some embodiments, the bearing assembly includes a horizontal support plate, and a groove matching the pointed end surface is formed on a surface of the horizontal support plate facing the support assembly.

[0009] In some embodiments, the surface of the horizontal support plate is engraved with a plurality of criss-crossing horizontal scale lines and vertical scale lines.

[0010] In some embodiments, the bearing assembly further includes a plurality of anti-roll screws, and a plurality of threaded holes are provided on both ends of the horizontal support plate, and the anti-roll screws are passed through the threaded holes.

[0011] In some embodiments, the scale has a zero scale position in the middle, and the scale units increase sequentially toward both sides, and the leveling pointer is fixed at the zero scale position of the scale by bolts.

[0012] The present invention also provides a method for measuring the center of gravity of a special-shaped lithium battery pack, based on any of the above-mentioned devices for measuring the center of gravity of a special-shaped battery pack, comprising the following steps: S1, leveling measuring device; S2, X-axis center of gravity measurement; S3, Y-axis center of gravity measurement; S4. Z-axis center of gravity measurement.

[0013] In some embodiments, the steps of leveling the measuring device include the following steps: S11. Place the measuring device on a horizontal surface and level the horizontal support; S12. Measure and record the distances between the anti-roll screws on the left and right sides of the horizontal support plate and the bottom fixing plate, which are D1 and D2 respectively. S13. Measure and record the angle between the leveling pointer and the zero scale vertical mark on the center tool holder. S14. If ΔD=|D1-D2|<2mm and the angle between the leveling pointer and the zero scale vertical mark on the center tool holder is less than 5°, it is considered that the measuring device is leveled. Otherwise, repeat step S11.

[0014] In some embodiments, the step of measuring the center of gravity in the X direction includes the following steps: S21, place the large surface of the battery pack on a horizontal support plate, and adjust the X direction of the battery pack to be parallel to the horizontal scale line on the horizontal support plate; S22, move the battery pack horizontally along the horizontal scale line direction, S23, measure and record the distances between the anti-roll screws on the left and right sides of the horizontal support plate and the bottom fixing plate, which are D3 and D4 respectively. S24. Measure and record the angle between the leveling pointer and the zero scale vertical mark on the center tool holder. S25, if ΔD=|D3-D4|<2mm and the angle between the leveling pointer and the zero scale vertical mark on the center tool rest is less than 5°, then execute step S26, otherwise, repeat step S22; S26. Assuming that the battery pack is leveled on the upper part of the measuring device, read the distance between the zero scale position of the measuring device scale and the end face of the battery pack, which is the X-axis center of gravity position of the battery pack.

[0015] In some embodiments, the step of measuring the center of gravity in the Y direction includes the following steps: S31, placing the Y-direction end surface of the battery pack on a horizontal support plate, and adjusting the Y-direction of the battery pack to be parallel to the horizontal scale line on the horizontal support plate; S32, horizontally move the battery pack along the horizontal scale line direction, S33, measure and record the distances between the anti-roll screws on the left and right sides of the horizontal support plate and the bottom fixing plate, which are D15 and D6 respectively. S34. Measure and record the angle between the leveling pointer and the zero scale vertical mark on the center tool holder. S35, if ΔD=|D5-D6|<2mm and the angle between the leveling pointer and the zero scale vertical mark on the center tool rest is less than 5°, then execute step S36, otherwise, repeat step S32; S36. Assuming that the battery pack is leveled on the upper part of the measuring device, read the distance between the zero scale position of the measuring device scale and the end face of the battery pack, which is the Y-axis center of gravity position of the battery pack.

[0016] Compared with the prior art, the center-of-gravity measuring device for a special-shaped battery pack provided by the present invention includes a support component, a bearing component, and an angle indicating component. The support component has a support end, the bearing component is movably placed on the support end, and a zero-scale vertical marking line is provided on the support end. The angle indicating component includes a scale and a leveling pointer. The scale is fixed on the side wall of the bearing component, and the leveling pointer is fixed on the side wall of the bearing component. When the bearing component is horizontal, the leveling pointer coincides with the zero-scale vertical marking line. The present invention utilizes the principle of a lever to support the bearing component and the measured battery pack through the support end, so that the center-of-gravity measuring device is secondary balanced, and the distance between the scale and the end face of the battery pack is read to achieve accurate measurement of the center of gravity of the battery pack. The present invention simplifies the center-of-gravity measuring method for a special-shaped battery pack, measures the center of gravity of the battery pack economically and reliably, and improves work efficiency.

[0017] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the preferred embodiments of the present invention are described in detail as follows with reference to the accompanying drawings. The specific implementation of the present invention is given in detail by the following embodiments and their accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the device for measuring the center of gravity of a special-shaped battery pack provided by the present invention.

[0019] Description of reference numerals: 1-support assembly, 11-bottom fixing plate, 12-center tool holder, 13-zero scale vertical mark, 2-bearing assembly, 21-horizontal support plate, 21a-horizontal scale line, 21b-vertical scale line, 211-groove, 22-anti-roll screw, 3-angle indication assembly, 31-scale, 32-leveling pointer. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] See also Figure 1 The present invention provides a device for measuring the center of gravity of a special-shaped battery pack, comprising: A support component 1, a bearing component 2 and an angle indicating component 3, wherein the support component 1 has a support end, the bearing component 2 is movably placed on the support end, a zero-scale vertical marking line 13 is provided on the support end, the angle indicating component 3 includes a scale 31 and a leveling pointer 32, the scale 31 is fixed on the side wall of the bearing component 2, the leveling pointer 32 is fixed on the side wall of the bearing component 2, and when the bearing component 2 is horizontal, the leveling pointer 32 coincides with the zero-scale vertical marking line 13.

[0022] The center-of-gravity measuring device for a special-shaped battery pack provided by the present invention comprises a support component 1, a bearing component 2 and an angle indicating component 3, wherein the support component 1 has a support end, the bearing component 2 is movably placed on the support end, a zero-scale vertical marking line 13 is provided on the support end, and the angle indicating component 3 comprises a scale 31 and a leveling pointer 32, wherein the scale 31 is fixed on the side wall of the bearing component 2, the leveling pointer 32 is fixed on the side wall of the bearing component 2, and when the bearing component 2 is horizontal, the leveling pointer 32 coincides with the zero-scale vertical marking line 13. The present invention utilizes the principle of a lever, supports the bearing component 2 and the measured battery pack through the support end, so that the center-of-gravity measuring device is secondary balanced, and the distance between the scale and the end face of the battery pack is read to achieve accurate measurement of the center-of-gravity of the battery pack. The present invention simplifies the center-of-gravity measuring method for a special-shaped battery pack, measures the center of gravity of the battery pack economically and reliably, and improves work efficiency.

[0023] Specifically, the support assembly 1 includes a bottom fixing plate 11 and a center tool holder 12. The bottom fixing plate 11 is plate-shaped and is set on a reliable ground. The center tool holder 12 is vertically fixed in the middle of the bottom fixing plate 11, and the end of the center tool holder 12 away from the bottom fixing plate 11 forms the support end.

[0024] Furthermore, the support end forms a pointed end face in contact with the bearing assembly 2. The width of the pointed end face is less than 1 mm, so as to avoid the influence of the large face on the center of gravity measurement and ensure the accuracy of the measuring device.

[0025] Specifically, the bearing assembly 2 includes a horizontal support plate 21 , and a groove 211 matching the pointed end surface is formed on a surface of the horizontal support plate 21 facing the support assembly 1 .

[0026] Furthermore, the length and width of the horizontal support plate 21 are not greater than 400 mm×120 mm, and a plurality of crisscrossing horizontal scale lines 21 a and vertical scale lines 21 b are engraved on the surface.

[0027] Furthermore, the bearing assembly 2 further includes a plurality of anti-roll screws 22. A plurality of threaded holes are provided on both ends of the horizontal support plate 21, and the anti-roll screws 22 are passed through the threaded holes. When in use, the height of the anti-roll screws 22 can be adjusted up and down to appropriately limit the inclination of the horizontal support plate 21. This ensures that the product will not fall when it is tilted during the center of gravity measurement process.

[0028] Specifically, the scale 31 has a zero scale position in the middle, and the scale units increase sequentially toward both sides.

[0029] Specifically, the leveling pointer 32 is fixed at the zero scale position of the scale 31 by means of bolts.

[0030] The present invention also discloses a method for measuring the center of gravity of a special-shaped lithium battery pack, comprising the following steps: S1, leveling measuring device; S2, X-axis center of gravity measurement; S3, Y-axis center of gravity measurement; S4. Z-axis center of gravity measurement.

[0031] Specifically, the leveling measurement device includes the following steps: S11. Place the measuring device on a horizontal surface and level the horizontal support; S12, measure and record the distances between the anti-roll screws 22 on the left and right sides of the horizontal support plate 21 and the bottom fixing plate 11, which are D1 and D2 respectively. S13, measure and record the angle between the leveling pointer 32 and the zero scale vertical mark 13 on the center tool rest 12, S14. If ΔD=|D1-D2|<2 mm and the angle between the leveling pointer 32 and the zero scale vertical mark 13 on the center tool holder 12 is less than 5°, it is considered that the measuring device is leveled. Otherwise, repeat step S11.

[0032] Specifically, the step of measuring the center of gravity in the X direction includes the following steps: S21, place the large surface of the battery pack on the horizontal support plate 21, and adjust the X direction of the battery pack to be parallel to the horizontal scale line 21a on the horizontal support plate 21; S22, move the battery pack horizontally along the horizontal scale line 21a, S23, measure and record the distances between the anti-roll screws 22 on the left and right sides of the horizontal support plate 21 and the bottom fixing plate 11, which are D3 and D4 respectively. S24, measure and record the angle between the leveling pointer 32 and the zero scale vertical mark 13 on the center tool rest 12, S25, if ΔD=|D3-D4|<2mm and the angle between the leveling pointer 32 and the zero scale vertical mark 13 on the center tool rest 12 is less than 5°, then execute step S26, otherwise, repeat step S22; S26, it is considered that the battery pack is leveled on the upper part of the measuring device, and the distance between the zero scale position of the measuring device scale 31 and the end face of the battery pack is read, which is the X-axis center of gravity position of the battery pack.

[0033] Specifically, the step of measuring the center of gravity in the Y direction includes the following steps: S31, placing the Y-direction end surface of the battery pack on the horizontal support plate 21, and adjusting the Y-direction of the battery pack to be parallel to the horizontal scale line 21a on the horizontal support plate 21; S32, horizontally move the battery pack along the horizontal scale line 21a, S33, measure and record the distances between the anti-roll screws 22 on the left and right sides of the horizontal support plate 21 and the bottom fixing plate 11, which are D5 and D6 respectively. S34, measure and record the angle between the leveling pointer 32 and the zero scale vertical mark 13 on the center tool rest 12, S35, if ΔD=|D5-D6|<2mm and the angle between the leveling pointer 32 and the zero scale vertical mark 13 on the center tool holder 12 is less than 5°, then execute step S36, otherwise, repeat step S32; S36, it is considered that the battery pack is leveled on the upper part of the measuring device, and the distance between the zero scale position of the measuring device scale 31 and the end face of the battery pack is read, which is the Y-axis center of gravity position of the battery pack.

[0034] Specifically, the Z-axis center of gravity measurement includes the following steps: S41, placing the Z-direction end surface of the battery pack on the horizontal support plate 21, and adjusting the Z-direction of the battery pack to be parallel to the horizontal scale line 21a on the horizontal support plate 21; S42, horizontally move the battery pack along the direction of the horizontal scale line 21a, S43, measure and record the distances between the anti-roll screws 22 on the left and right sides of the horizontal support plate 21 and the bottom fixing plate 11, which are D7 and D8 respectively. S44, measure and record the angle between the leveling pointer 32 and the zero scale vertical mark 13 on the center tool rest 12, S45, if ΔD=|D7-D8|<2mm and the angle between the leveling pointer 32 and the zero scale vertical mark 13 on the center tool rest 12 is less than 5°, then execute step S46, otherwise, repeat step S42; S46, it is considered that the battery pack is leveled on the upper part of the measuring device, and the distance between the zero scale position of the measuring device scale 31 and the end face of the battery pack is read, which is the Z-axis center of gravity position of the battery pack.

[0035] Beneficial effects of the present invention: The center of gravity measuring device of a special-shaped battery pack provided by the present invention includes a supporting component, a bearing component and an angle indicating component, wherein the supporting component has a supporting end, the bearing component is movably placed on the supporting end, a zero-scale vertical marking line is provided on the supporting end, and the angle indicating component includes a scale and a leveling pointer, the scale is fixed on the side wall of the bearing component, the leveling pointer is fixed on the side wall of the bearing component, and when the bearing component is horizontal, the leveling pointer coincides with the zero-scale vertical marking line. The present invention utilizes the principle of a lever, and supports the bearing component and the measured battery pack through the supporting end, so that the center of gravity measuring device is secondary balanced, and the distance between the scale and the end face of the battery pack is read to achieve accurate measurement of the center of gravity of the battery pack. The present invention simplifies the center of gravity measuring method of a special-shaped battery pack, measures the center of gravity of the battery pack economically and reliably, and improves work efficiency.

[0036] The specific implementation of the present invention described above does not constitute a limitation on the protection scope of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A device for measuring the center of gravity of a special-shaped battery pack, characterized in that: It includes: A support assembly having a support end, wherein a zero scale vertical marking line is provided on the support end; A load-bearing assembly, movably placed on the supporting end; as well as The angle indicating assembly comprises a scale and a leveling pointer, wherein the scale is fixed on the side wall of the bearing assembly, the leveling pointer is fixed on the side wall of the bearing assembly, and when the bearing assembly is horizontal, the leveling pointer coincides with the zero scale vertical marking line.

2. The device for measuring the center of gravity of a special-shaped battery pack according to claim 1, characterized in that: The supporting end forms a pointed end surface in contact with the bearing assembly.

3. The device for measuring the center of gravity of a special-shaped battery pack according to claim 2, characterized in that: The bearing assembly comprises a horizontal support plate, and a groove matching the pointed end surface is formed on a surface of the horizontal support plate facing the support assembly.

4. The device for measuring the center of gravity of a special-shaped battery pack according to claim 3, characterized in that: The surface of the horizontal support plate is engraved with a plurality of crisscrossing horizontal scale lines and vertical scale lines.

5. The device for measuring the center of gravity of a special-shaped battery pack according to claim 3, characterized in that: The bearing assembly further comprises a plurality of anti-rolling screws. A plurality of threaded holes are formed on both ends of the horizontal support plate, and the anti-rolling screws are passed through the threaded holes.

6. The device for measuring the center of gravity of a special-shaped battery pack according to claim 1, characterized in that: The scale has a zero scale position in the middle, and the scale units increase sequentially toward both sides. The leveling pointer is fixed at the zero scale position of the scale by bolts.

7. A method for measuring the center of gravity of a special-shaped lithium battery pack, based on the device for measuring the center of gravity of a special-shaped battery pack according to any one of claims 1 to 6, characterized in that: The steps include: S1, leveling measuring device; S2, X-axis center of gravity measurement; S3, Y-axis center of gravity measurement; S4. Z-axis center of gravity measurement.

8. The method for measuring the center of gravity of a special-shaped battery pack according to claim 7, characterized in that: The steps in the leveling measurement device include the following steps: S11. Place the measuring device on a horizontal surface and level the horizontal support; S12. Measure and record the distances between the anti-roll screws on the left and right sides of the horizontal support plate and the bottom fixing plate, which are D1 and D2 respectively. S13. Measure and record the angle between the leveling pointer and the zero scale vertical mark on the center tool holder. S14. If ΔD=|D1-D2|<2mm and the angle between the leveling pointer and the zero scale vertical mark on the center tool holder is less than 5°, it is considered that the measuring device is leveled. Otherwise, repeat step S11.

9. The method for measuring the center of gravity of a special-shaped battery pack according to claim 7, characterized in that: The X-axis center of gravity measurement includes the following steps: S21, place the large surface of the battery pack on a horizontal support plate, and adjust the X direction of the battery pack to be parallel to the horizontal scale line on the horizontal support plate; S22, move the battery pack horizontally along the horizontal scale line direction, S23, measure and record the distances between the anti-roll screws on the left and right sides of the horizontal support plate and the bottom fixing plate, which are D3 and D4 respectively. S24. Measure and record the angle between the leveling pointer and the zero scale vertical mark on the center tool holder. S25, if ΔD=|D3-D4|<2mm and the angle between the leveling pointer and the zero scale vertical mark on the center tool rest is less than 5°, then execute step S26, otherwise, repeat step S22; S26. Assuming that the battery pack is leveled on the upper part of the measuring device, read the distance between the zero scale position of the measuring device scale and the end face of the battery pack, which is the X-axis center of gravity position of the battery pack.

10. The method for measuring the center of gravity of a special-shaped battery pack according to claim 7, characterized in that The Y-axis center of gravity measurement includes the following steps: S31, placing the Y-direction end surface of the battery pack on a horizontal support plate, and adjusting the Y-direction of the battery pack to be parallel to the horizontal scale line on the horizontal support plate; S32, horizontally move the battery pack along the horizontal scale line direction, S33, measure and record the distances between the anti-roll screws on the left and right sides of the horizontal support plate and the bottom fixing plate, which are D5 and D6 respectively. S34. Measure and record the angle between the leveling pointer and the zero scale vertical mark on the center tool holder. S35, if ΔD=|D5-D6|<2mm and the angle between the leveling pointer and the zero scale vertical mark on the center tool rest is less than 5°, then execute step S36, otherwise, repeat step S32; S36. Assuming that the battery pack is leveled on the upper part of the measuring device, read the distance between the zero scale position of the measuring device scale and the end face of the battery pack, which is the Y-axis center of gravity position of the battery pack.

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