CN116358673A

CN116358673A - Battery weighing device

Info

Publication number: CN116358673A
Application number: CN202211525961.5A
Authority: CN
Inventors: 何伟; 祝海仕; 赵文虎; 白志杰
Original assignee: Bozhon Precision Industry Technology Co Ltd
Current assignee: Bozhon Precision Industry Technology Co Ltd
Priority date: 2022-12-01
Filing date: 2022-12-01
Publication date: 2023-06-30

Abstract

The invention discloses a battery weighing device, comprising: the lifting assembly comprises a lifting plate, a plurality of first supporting plates and a driving assembly, wherein the lifting plate is provided with first through grooves with the number corresponding to that of the first supporting plates, and the area of the first supporting plates is larger than that of the first through grooves; the first supporting plates are arranged on the corresponding first through grooves and used for bearing the batteries; the driving component is used for driving the lifting plate to lift; the weighing assembly is provided with second support plates corresponding to the first support plates, and the area of each second support plate is smaller than that of each first through groove; when the lifting plate descends, the second supporting plate penetrates through the first through groove to support the first supporting plate, and the weighing assembly weighs the battery. By adopting the invention, batteries with different specifications can be weighed, meanwhile, the weighing stabilization time is short, and the stability of the weighing assembly is good.

Description

Battery weighing device

Technical Field

The invention relates to the field of battery manufacturing, in particular to a battery weighing device.

Background

The liquid injection amount of the battery often affects the charge and discharge performance of the battery, so that a procedure of weighing and detecting is added for the requirements of battery quality and production stability in the process of liquid injection production of the battery. At present, most of batteries are directly placed on a weighing clamp, so that an electronic scale is easy to impact, weighing data of the electronic scale are unstable, and meanwhile, the weighing stability time is long.

In addition, according to the production requirement, the same battery production line or battery weighing device often needs to weigh batteries with different specifications, and therefore, a battery weighing device capable of being suitable for batteries with different specifications is needed.

Disclosure of Invention

The technical problem to be solved by the embodiment of the invention is to provide the battery weighing device which can weigh batteries with different specifications, and meanwhile, the weighing stabilization time is short, and the stability of a weighing assembly is good.

In order to solve the above technical problems, the present invention provides a battery weighing device, including: the lifting assembly comprises a lifting plate, a plurality of first supporting plates and a driving assembly, wherein the lifting plate is provided with first through grooves with the number corresponding to that of the first supporting plates, and the area of the first supporting plates is larger than that of the first through grooves; the first supporting plates are arranged on the corresponding first through grooves and used for bearing the batteries; the driving component is used for driving the lifting plate to lift; the weighing assembly is provided with second support plates corresponding to the first support plates, and the area of each second support plate is smaller than that of each first through groove; when the lifting plate descends, the second supporting plate penetrates through the first through groove to support the first supporting plate, and the weighing assembly weighs the battery.

In one possible implementation manner, the lifting plate is provided with a guide post, the first support plate is provided with a through hole corresponding to the guide post, the aperture of the through hole is larger than the diameter of the guide post, and the guide post penetrates through the through hole to limit the movement of the first support plate in the lifting direction of the lifting plate.

In one possible implementation, a stop is provided at the top end of the guide post for limiting the lifting distance of the lifting plate.

In one possible implementation manner, the battery further comprises a first limiting component, wherein the first limiting component is arranged on the first supporting plate and at the corresponding position of the two ends of the battery in the length direction and is used for supporting the two ends of the battery from the two sides of the battery in the thickness direction.

In one possible implementation manner, a first chute is arranged on the first supporting plate, and the first chute is arranged along the length direction of the battery; the first limiting component is arranged on the first sliding groove, and the first limiting component adjusts the position of the first sliding groove according to the length of the battery.

In one possible implementation manner, the first limiting component comprises a clamping component and a connecting plate, the connecting plate is connected with the clamping component, the connecting plate is provided with a second sliding groove, the second sliding groove is arranged along the thickness direction of the battery, the clamping component is arranged on the second sliding groove, and the clamping component adjusts the position on the second sliding groove according to the thickness of the battery.

In one possible implementation manner, the battery further comprises a second limiting component, wherein the second limiting component is arranged on the first supporting plate and between the first limiting components at two ends of the first supporting plate, and supports and limits the middle of the battery from two sides in the thickness direction of the battery.

In one possible implementation, the weighing assembly further comprises a third support plate disposed above the second support plate for flexible contact with the first support plate.

In one possible implementation manner, the device further comprises an overload protection component, wherein the overload protection component is arranged on the substrate and at a position corresponding to the lifting plate, the overload protection component comprises a blocking column, the top of the blocking column is spaced from the substrate by a first distance, and when the lifting plate descends to be away from the substrate by the first distance, the overload protection component blocks the first lifting plate from continuing to descend.

In one possible implementation manner, the device further comprises a buffer protection component, wherein the buffer protection component is arranged on the substrate and corresponds to the lifting plate, the buffer protection component comprises a buffer column, the top of the buffer column is separated from the substrate by a second distance, and when the lifting plate descends to be away from the substrate by the second distance, the buffer device enables the lifting plate to slowly descend.

The implementation of the invention has the following beneficial effects:

the battery is placed on the fixed weighing assembly through the lifting assembly, so that the time for weighing stability is reduced, and the stability and the precision of the weighing assembly are ensured; the design of the supporting plate enables the battery to adapt to batteries with different specifications.

Meanwhile, through the arrangement of the limiting assembly, the battery is limited in multiple directions, and the weighing stability is obviously improved.

Drawings

FIG. 1 is a schematic diagram of a battery weighing apparatus according to some embodiments of the present application;

FIG. 2 is a schematic view of the structure of the removed part of the components of FIG. 1;

FIG. 3 is a top view of FIG. 2;

FIG. 4 is a front view of FIG. 2;

fig. 5 is a schematic structural view of a first guide assembly according to some embodiments of the present application.

Reference numerals in the drawings:

1-lifting components, 11-lifting plates, 111-first through grooves, 12-first support plates, 121-first sliding grooves, 13-driving components, 14-first guide columns and 15-through holes;

2-a weighing assembly; 21-a second support plate, 22-a third support plate;

3-a first limiting assembly, 31-a clamping assembly, 32-a connecting plate and 321-a second chute;

4-a second limiting component;

5-base plate, 51-base;

6-overload protection device;

7-a buffer protection device;

8-battery;

9-base frame.

Detailed Description

In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1-4, the present embodiment provides a battery weighing apparatus. As shown in fig. 1 and 2, the battery weighing apparatus includes: a base plate 5, a lifting assembly 1 and a weighing assembly 2. The lifting assembly 1 and the weighing assembly 2 are arranged on a base plate 5. The lifting assembly 1 comprises a lifting plate 11, a plurality of first support plates 12 and a driving assembly 13. The driving assembly 13 is used for driving the lifting plate 11 to lift. As shown in fig. 1-2, the driving assembly 13 includes four telescopic rods disposed below the lifting plate 11, one end of each telescopic rod is connected to the lifting plate 11, and the other end of each telescopic rod is fixed to the base plate 5. The driving device drives the telescopic rod to stretch and retract, thereby driving the lifting plate 11 to lift. The lifting plate 11 is provided with a number of first through grooves 111 corresponding to the number of first support plates 12. The lifting assembly 1 of the battery weighing device shown in fig. 1-4 is provided with six first support plates 12, and correspondingly, six first through grooves 111 corresponding to the six first support plates 12 are formed on the lifting plate 11. The area of the first support plate 12 is larger than the area of the first through groove 111. The first support plates 12 are disposed on the corresponding first through grooves 111 for carrying the batteries 8. The weighing assembly 2 is provided with a second support plate 21 corresponding to the number of first support plates 12. The weighing assembly 2 of the battery weighing apparatus as shown in fig. 1-4 is provided with six second support plates 21. The area of the second support plate 21 is smaller than that of the first through groove 111. When the driving assembly 13 drives the lifting plate 11 to descend, the weighing assembly 2 is fixed, and the six second support plates 21 respectively pass through the corresponding first through grooves 111 on the lifting plate 11 to receive the corresponding first support plates 12. The six second support plates 21 are respectively connected to corresponding weighing elements in the weighing assembly 2, which weigh the first support plates 12 and the batteries 8 carried on the second support plates 21. The battery 8 is borne by the first supporting plate 12, the first supporting plate 12 is borne by the second supporting plate 21, and the weighing element weighs again, so that the battery weighing device can weigh batteries 8 with different specifications. Meanwhile, the weighing assembly 2 is fixed on the base plate 5 and is fixed in the weighing process, so that the stability of the weighing element is effectively improved, the stabilizing time during weighing is reduced, the error caused by the movement of the weighing element is avoided, and the frequency of calibration of the weighing element can be greatly reduced.

Further, as shown in fig. 2, a guide post 14 is provided on the lifter plate 11. The guide posts 14 may be provided in pairs at both ends in the longitudinal direction of the corresponding first support plate 12, and outside both ends in the longitudinal direction of the corresponding first through groove 111. The pair of guide posts 14 may restrict the movement of the first support plate 12 in a horizontal direction. The first support plate 12 is provided with a through hole 15 corresponding to the guide post 14, the diameter of the through hole 15 being larger than the diameter of the guide post 14, which here may be slightly larger. Thus, when the lifting plate 11 descends, the first support plate 12 can descend along with the lifting plate 11, and when the first support plate 12 is supported by the second support plate 21, the cooperation of the through holes 15 and the guide posts 14 does not affect the independent weighing of the first support plate 12 and the battery 8. The guide post 14 penetrates through the through hole 15 and is arranged on the lifting plate 11, so that the movement of the first support plate 12 in the lifting direction of the lifting plate 11 can be limited, the stability of the battery 8 during descending weighing is ensured, and the stability time during weighing can be effectively shortened. Further, the first support plate 12 may further be provided with a guide bearing, the guide bearing may be mounted on the through hole 15 in the support plate, the diameter of the guide bearing is equal to that of the through hole 15 and greater than that of the guide post 14, the guide post 14 penetrates through the guide bearing and the through hole 15, the guide bearing is added, the effect of guiding and limiting in the upgrading direction can be further increased, and the stability of the device during lifting movement is increased.

Further, the top end of the guide post 14 may be provided with a stopper for limiting the rising distance of the elevation plate 11. As shown in fig. 2 and 3, the stopper may be a nut structure. The stopper can prevent the second support plate 21 from being separated from the guide post 14 during the weighing process, and ensure the stability of the repeated operation of the battery weighing device.

In one possible implementation, as shown in fig. 1-5, the battery weighing apparatus may further comprise a first spacing assembly 3. The first limiting component 3 is arranged on the first supporting plate 12 at a position corresponding to two ends of the battery 8 in the length direction and is used for supporting and limiting the two ends of the battery 8 from two sides of the battery 8 in the thickness direction. Thus, when the lifting plate 11 performs lifting movement, the battery 8 can be clamped by the first limiting component 3, so that shaking can be reduced, and the stabilizing time during weighing can be further reduced. Optionally or preferably, the first limiting components 3 may be arranged in pairs, and are respectively arranged at two ends of the battery 8 in the length direction, so as to clamp the two ends of the battery 8 in the length direction, and the first limiting components are arranged in pairs, so that the battery 8 can be further limited.

Further, as shown in fig. 2, the first support plate 12 may be provided with a first chute 121, and the first chute 121 is disposed along the length direction of the battery 8. The first limiting component 3 is arranged on the first chute 121, and the position of the first limiting component 3 on the first chute 121 is adjusted according to the length of the battery 8, so that the battery 8 with different length specifications can be adapted to the position of the battery.

Further, as shown in fig. 5, the first spacing assembly 3 may include a clamping assembly 31 and a connecting plate 32. Specifically, the clamping assembly 31 may be a pair of clamping plates having the same structure, or may be a pair of clamping units having the same structure. If the clamping plate is selected to have a simple structure, the cost can be saved. The clamping unit shown in fig. 5 may further be provided with a roller assembly, which can avoid hard contact with the battery 8 and avoid damage to the battery 8 or clamping force. The connection plates 32 connect the clamping assemblies 31 such that the battery 8 is sandwiched between the clamping assemblies 31. The connecting plate 32 can be equipped with second spout 321, and second spout 321 sets up along the thickness direction of battery 8, clamping assembly 31 set up in on the second spout 321, like this, clamping assembly 31 can adjust the position on second spout 321 according to the thickness of battery 8 to can adapt to the battery 8 of different thickness specification, spacing it.

In one possible implementation, as shown in fig. 1-5, the battery weighing apparatus may further comprise a second spacing assembly 4. The second limiting component 4 is arranged on the first supporting plate 12 and between the first limiting components 3 at two ends of the first supporting plate 12, and supports and limits the middle of the battery 8 from two sides in the thickness direction of the battery 8. The second limiting assembly 4 may have the same structure as the clamping assembly 31, for example, may be clamping plates having the same structure as that of the pair arrangement, and for example, may be clamping units arranged in pairs. The battery 8 is placed between the clamping plates or clamping units or other clamping assemblies 31, and the battery 8 is restrained from the thickness direction. Meanwhile, the second limiting structure is arranged in the middle of the length direction of the battery 8, so that damage to the battery 8 caused by torsion generated in the lifting process can be effectively avoided when the length of the battery 8 is too long.

Further, a third support plate 22 may be provided on the second support plate 21 of the weighing assembly 2. A third support plate 22 is provided above the second support plate 21 for flexible contact with the first support plate 12. The first support plate 12 and the second support plate 21 may be made of a metal material such as steel or the like in order to secure stability or the like of the load-bearing battery 8. If the steel plates are contacted with each other, certain abrasion can be generated after long-term use. The material of the third support plate 22 can be silica gel or other materials which are more flexible than metal steel, so that when weighing, the third support plate 22 is in direct contact with the first support plate 12, abrasion between the support plates can be effectively reduced, errors caused by abrasion are avoided, and the service life of the device is effectively prolonged.

Further, as shown in fig. 1-4, the battery weighing apparatus may also include an overload protection assembly 6. The overload protection assembly 6 is disposed on the base plate 5 at a position corresponding to the lifting plate 11. The overload protection assembly 6 includes a blocking column having a top spaced a first distance from the base plate 5, and the overload protection assembly 6 blocks the first lift plate 11 from continuing to descend when the lift plate 11 descends to a first distance from the base plate 5. The first distance may be set according to the maximum weight that the weighing element in the weighing assembly 2 is capable of weighing. For example, when the second support plate 21 carries the battery 8 of the maximum weight, the bottom of the second support plate 21 is at a first base distance from the base plate 5, and the first distance should be that the bottom of the second support plate 21 is at a distance greater than the first base distance when the lift plate 11 is at the first distance. In this way, the weighing cell is prevented from being overloaded by an excessive weight of the battery 8, resulting in damage to the weighing cell.

Further, as shown in fig. 1-4, the battery weighing apparatus may also include a buffer protection assembly 7. The buffer protection unit 7 is disposed on the base plate 5 at a position corresponding to the lifting plate 11. The buffer protection assembly 7 comprises a buffer column, the top of the buffer column is spaced from the base plate 5 by a second distance, and when the lifting plate 11 descends to the second distance, the buffer device enables the lifting plate 11 to slowly descend. The bumper post may be connected to a resilient member, such as a spring. When the lifting plate 11 descends to the buffer post, the elastic element is compressed to generate upward force to the lifting plate 11, so that the descending speed of the lifting plate 11 can be slowed down, and the buffer effect is achieved. The second distance may be set according to the distance of the second support plate 21 from the base plate 5 when the weighing element is empty, i.e. when the second support plate 21 is empty. For example, when the second support plate 21 is empty, the distance of the top surface of the second support plate 21 from the substrate 5 is a second basic distance, and then the second distance may be that the distance of the top surface of the second support plate 21 from the substrate 5 is less than or equal to the second basic distance when the lift plate 11 is at the second distance. It can also be said that when the lifting plate 11 is at the second distance, the second support plate 21 just touches the first support plate 12 or is just about to touch the support plate, so that the lifting plate 11 can be prevented from falling too fast, the battery 8 being placed on the weighing element too fast, the instantaneous impact of the weighing element being too great, damaging the weighing element.

Further, the battery weighing apparatus may further include a base 51, and the base plate 5 is fixed to the base 51. The base 51 may be a planar platform made of a material having characteristics of small expansion coefficient, strong thermal stability, stable shape, etc., such as a marble platform, etc., so as to avoid fluctuation of the measured value of the weighing assembly 2 fixed on the base 51 due to the change of the external environment, thereby improving the measurement stability of the device.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.

Claims

1. A battery weighing apparatus, comprising: the lifting assembly and the weighing assembly are arranged on the base plate, wherein,

the lifting assembly comprises a lifting plate, a plurality of first supporting plates and a driving assembly, wherein the lifting plate is provided with first through grooves with the number corresponding to that of the first supporting plates, and the area of the first supporting plates is larger than that of the first through grooves; the first supporting plates are arranged on the corresponding first through grooves and used for bearing the batteries; the driving component is used for driving the lifting plate to lift;

the weighing assembly is provided with second support plates corresponding to the first support plates, and the area of each second support plate is smaller than that of each first through groove; when the lifting plate descends, the second supporting plate penetrates through the first through groove to support the first supporting plate, and the weighing assembly weighs the battery.

2. The battery weighing apparatus according to claim 1, wherein the lifting plate is provided with a guide post, the first support plate is provided with a through hole corresponding to the guide post, the diameter of the through hole is larger than the diameter of the guide post, and the guide post penetrates through the through hole to limit the movement of the first support plate in the lifting direction of the lifting plate.

3. The battery weighing apparatus of claim 2, wherein a stopper is provided at a top end of the guide post for limiting a rising distance of the lifting plate.

4. The battery weighing apparatus according to claim 1, further comprising a first stopper member provided on the first support plate at a position corresponding to both ends in the battery length direction for supporting both ends of the battery from both sides in the battery thickness direction.

5. The battery weighing apparatus of claim 4, wherein a first chute is provided on the first support plate, the first chute being disposed along a length direction of the battery; the first limiting component is arranged on the first sliding groove, and the first limiting component adjusts the position of the first sliding groove according to the length of the battery.

6. The battery weighing apparatus of claim 4, wherein said first limiting assembly comprises a clamping assembly and a connecting plate, said connecting plate connects said clamping assembly, said connecting plate is provided with a second chute, said second chute is arranged along the thickness direction of said battery, said clamping assembly is arranged on said second chute, and said clamping assembly adjusts the position on said second chute according to the thickness of said battery.

7. The battery weighing apparatus of claim 4, further comprising a second limiting assembly disposed on the first support plate and disposed between the first limiting assemblies at two ends of the first support plate, wherein the middle of the battery is supported and limited from two sides in the thickness direction of the battery.

8. The battery weighing apparatus of claim 1 wherein said weighing assembly further comprises a third support plate disposed above said second support plate for flexible contact with said first support plate.

9. The battery weighing apparatus of claim 1 further comprising an overload protection assembly disposed on said base plate in a position corresponding to said lift plate, said overload protection assembly including a blocking post having a top spaced a first distance from said base plate, said overload protection assembly blocking continued lowering of said first lift plate when said lift plate is lowered said first distance from said base plate.

10. The battery weighing apparatus of claim 1 further comprising a buffer protection assembly disposed on said base plate in a position corresponding to said lifting plate, said buffer protection assembly comprising a buffer post having a top spaced a second distance from said base plate, said buffer assembly causing said lifting plate to slowly descend when said lifting plate descends to said second distance from said base plate.