CN117129494A - Battery detection device and battery detection method - Google Patents

Battery detection device and battery detection method Download PDF

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Publication number
CN117129494A
CN117129494A CN202311085517.0A CN202311085517A CN117129494A CN 117129494 A CN117129494 A CN 117129494A CN 202311085517 A CN202311085517 A CN 202311085517A CN 117129494 A CN117129494 A CN 117129494A
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CN
China
Prior art keywords
battery
movement mechanism
drive
carrier
target position
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CN202311085517.0A
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Chinese (zh)
Inventor
刘宇豪
赵刚
徐文杰
宁世康
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Hangzhou Ruiying Technology Co ltd
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Hangzhou Ruiying Technology Co ltd
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Application filed by Hangzhou Ruiying Technology Co ltd filed Critical Hangzhou Ruiying Technology Co ltd
Priority to CN202311085517.0A priority Critical patent/CN117129494A/en
Publication of CN117129494A publication Critical patent/CN117129494A/en
Pending legal-status Critical Current

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
    • G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2223/00—Investigating materials by wave or particle radiation
    • G01N2223/30—Accessories, mechanical or electrical features
    • G01N2223/33—Accessories, mechanical or electrical features scanning, i.e. relative motion for measurement of successive object-parts
    • G01N2223/3307—Accessories, mechanical or electrical features scanning, i.e. relative motion for measurement of successive object-parts source and detector fixed; object moves

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)

Abstract

The application discloses battery detection equipment and a battery detection method, and belongs to the technical field of battery detection. The battery detection equipment comprises a motion mechanism, a bearing piece, a radiation source and a detector, wherein the motion mechanism comprises a first moving mechanism, the bearing piece is arranged on the first moving mechanism, the bearing piece is provided with a bearing surface for placing a battery, the first moving mechanism can drive the bearing piece to drive the battery to move along a first direction, and the first direction is perpendicular to the bearing surface; the radiation source and the detector are respectively positioned at two opposite sides of the movement mechanism, the radiation source is used for emitting radiation, the detector is used for receiving radiation penetrating through the battery, and the first movement mechanism drives the bearing piece and the battery to move along the first direction under the condition that the radiation source emits radiation. The battery detection method comprises the following steps: placing a battery on a bearing surface of a bearing piece; the first moving mechanism is controlled to drive the bearing piece and the battery to move along a first direction, so that rays emitted by the ray source penetrate through different parts of the battery in the thickness direction of the battery.

Description

Battery detection device and battery detection method
Technical Field
The application belongs to the technical field of battery detection, and particularly relates to battery detection equipment and a battery detection method.
Background
With the wide application of digital products such as mobile phones and notebook computers, batteries are widely applied to the products and gradually develop into the application fields of other products.
The battery is required to be detected after assembly, and a nondestructive detection technology is generally used for detection, and in the related technology, the battery detection equipment comprises a ray source and a detector, the ray source emits rays, and the rays can penetrate through the internal structure of the battery and then are received by the detector, so that the internal structure of the battery is detected. However, referring to fig. 1, the battery 100 includes a plurality of metal sheets 110 disposed along a thickness direction thereof, a central ray of a ray 210 area is parallel to a plane of the metal sheets 110, and an edge ray of the ray 210 area forms an included angle with the metal sheets 110 of the battery 100, so that the edge ray cannot penetrate the metal sheets 110 disposed at both sides of the battery 100, thereby causing overlapping of images, poor imaging effect, and poor detection effect.
Disclosure of Invention
The embodiment of the application aims to provide battery detection equipment and a battery detection method, which can solve the problem of poor detection effect of the battery detection equipment in the related technology.
In a first aspect, an embodiment of the present application provides a battery detection apparatus, including:
the battery moving device comprises a moving mechanism and a bearing piece, wherein the moving mechanism comprises a first moving mechanism, the bearing piece is arranged on the first moving mechanism and is provided with a bearing surface for placing a battery, the first moving mechanism can drive the bearing piece to drive the battery to move along a first direction, and the first direction is perpendicular to the bearing surface;
the radiation source and the detector are respectively positioned at two opposite sides of the movement mechanism, the radiation source is used for emitting radiation, the detector is used for receiving the radiation penetrating through the battery, and the first movement mechanism drives the bearing piece and the battery to move along the first direction under the condition that the radiation source emits the radiation.
In a second aspect, an embodiment of the present application further provides a battery detection method, which is applied to the above battery detection device, where the battery detection method includes:
placing a battery on a bearing surface of a bearing piece;
the first moving mechanism is controlled to drive the bearing piece and the battery to move along a first direction, so that rays emitted by the ray source penetrate through different parts of the battery in the thickness direction of the battery.
In the embodiment of the application, the battery can be controlled to move along the first direction by the first moving mechanism, and the first direction is perpendicular to the bearing surface, and the bearing surface is parallel to the plane where the battery is positioned, so that the first direction is parallel to the thickness direction of the battery, the central ray emitted by the ray source can sequentially pass through each metal sheet of the battery, the central ray can penetrate through the whole battery, each metal sheet of the battery is scanned, the detector can accurately obtain the image of each metal sheet, the internal structure of the battery is further detected, the problem that the metal sheets cannot be penetrated due to the fact that the edge ray of the ray area and the metal sheet form a certain included angle under the condition of single penetration detection is avoided, and further imaging overlapping is avoided.
Drawings
FIG. 1 is a schematic illustration of a radiation source of the type disclosed in an embodiment of the present application with radiation penetrating a battery;
fig. 2 is a schematic structural view of a battery detection apparatus according to an embodiment of the present application;
FIG. 3 is a schematic view of a first moving mechanism according to an embodiment of the present application;
FIG. 4 is a flow chart of a battery detection method according to an embodiment of the present application;
FIG. 5 is a flow chart of a battery detection method disclosed in another embodiment of the application;
FIG. 6 is a flow chart of a battery detection method according to yet another embodiment of the present application;
FIG. 7 is a schematic diagram of a battery in an actual position and a battery in a target position according to an embodiment of the present application;
fig. 8 to 11 are schematic views of the battery according to the embodiment of the present application in the first, second, third and fourth target positions, respectively.
Reference numerals illustrate:
100-cell, 110-foil, beta 1-first angle, beta 2-second angle, beta 3-third angle, beta 4-fourth angle, 200-ray source, 210-ray,
300-detector,
400-motion mechanism, 410-first motion mechanism, 411-first driving source, 412-first screw rod, 413-sliding block, a-first wedge surface, 414-lifting platform, b-second wedge surface, 415-guiding component, 420-second motion mechanism, 430-third motion mechanism, 440-rotation mechanism,
500-bearing piece, 510-bearing surface,
600-image detection device, 610-light filling lamp,
700-photoelectric protection device,
800-base,
900-top bracket, 910-light supplementing bracket, 911-light curtain opening.
Detailed Description
The technical solutions of the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which are obtained by a person skilled in the art based on the embodiments of the present application, fall within the scope of protection of the present application.
The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type, and are not limited to the number of objects, such as the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.
The battery detection device and the battery detection method provided by the embodiment of the application are described in detail below through specific embodiments and application scenes thereof with reference to the accompanying drawings.
Referring to fig. 1 to 11, a battery detection apparatus disclosed in an embodiment of the present application includes a motion mechanism 400, a carrier 500, a radiation source 200, and a detector 300, wherein the carrier 500 has a carrying surface 510 for placing a battery 100, and the motion mechanism 400 is used for driving the carrier 500 and the battery 100 to move; the radiation source 200 is adapted to emit radiation 210 and the detector 300 is adapted to receive radiation 210 penetrating the battery 100. Optionally, the radiation source 200 emits X-rays; the battery 100 may be, but is not limited to, a lithium battery 100.
Optionally, as shown in fig. 2, the battery detection apparatus further includes a base 800, where the base 800 provides support for the movement mechanism 400, the radiation source 200, and the detector 300, and the movement mechanism 400, the radiation source 200, and the detector 300 are separately disposed at intervals on the base 800. In embodiments of the application, both the source 200 and the detector 300 may be in fixed positions relative to the base 800.
The movement mechanism 400 includes a first movement mechanism 410, the carrier 500 is disposed on the first movement mechanism 410, and the first movement mechanism 410 can drive the carrier 500 to drive the battery 100 to move along a first direction, wherein the first direction is perpendicular to the carrying surface 510. Alternatively, the first moving mechanism 410 may be a linear driving module or a structure in which a driving motor is matched with a ball screw, or may be another mechanism capable of driving the carrier 500 to generate linear displacement. Since the first direction is perpendicular to the carrying surface 510, and when the carrying surface 510 is used for placing the battery 100, the carrying surface 510 is parallel to the plane where the battery 100 is located, so that the first direction is parallel to the thickness direction of the battery 100, the first moving mechanism 410 can drive the carrying member 500 to drive the battery 100 to move along the thickness direction of the battery 100. The battery 100 generally includes a plurality of metal sheets 110 disposed along a thickness direction thereof, so that a central ray emitted from the ray source 200 can sequentially pass through each metal sheet 110 of the battery 100, the central ray can penetrate through the whole battery 100, scan each metal sheet 110 of the battery 100, and the detector 300 can accurately obtain an image of each metal sheet 110, thereby detecting an internal structure of the battery 100.
In the embodiment of the application, the first moving mechanism 410 controls the battery 100 to move, so that the rays 210 emitted by the ray source 200 sequentially penetrate through different parts of the battery 100 in the thickness direction of the battery, thereby avoiding the problem that the metal sheet 110 cannot be penetrated due to a certain included angle between the edge rays of the ray 210 area and the metal sheet 110 under the condition of single penetration detection, and further avoiding imaging overlapping.
In an alternative embodiment, the first moving mechanism 410 includes a first driving source 411, a first screw rod 412 and a slider 413, where the first driving source 411 may be a driving source for providing rotational power for a driving motor, a pneumatic motor, etc., an output shaft of the first driving source 411 is connected to the first screw rod 412, the first screw rod 412 is in threaded engagement with the slider 413, an extending direction of the first screw rod 412 is perpendicular to the bearing surface 510, and the bearing 500 is connected to the slider 413. Alternatively, the slider 413 may be provided with a threaded hole, through which the first screw 412 is screw-fitted with the slider 413; alternatively, the slider 413 includes a first nut, and the first screw 412 is screw-engaged with the first nut, that is, the first screw 412 is screw-engaged with the slider 413 through the first nut. In this way, the first driving source 411 drives the slider 413 to move through the first screw 412, and the carrier 500 is directly driven to move together when the slider 413 moves.
In another embodiment, as shown in fig. 3, the extending direction of the first screw rod 412 is parallel to the bearing surface 510, the first moving mechanism 410 further includes a lifting platform 414, the slider 413 is provided with a first wedge surface a, the lifting platform 414 is provided with a second wedge surface b, the first wedge surface a is matched with the second wedge surface b, and the bearing member 500 is disposed on the lifting platform 414. In this way, the power transmission direction is changed by the matching structure of the slider 413 and the lifting platform 414. In the case where the first driving source 411 drives the slider 413 to move in the extending direction of the first screw 412 through the first screw 412, the slider 413 drives the lifting platform 414 to move in the first direction through the first wedge surface a and the second wedge surface b. Alternatively, the first wedge surface a and the second wedge surface b may be obliquely arranged planes, or the first wedge surface a and the second wedge surface b may be obliquely arranged non-planar structures.
With the present embodiment, since the slider 413 contacts the lifting platform 414 via the first wedge surface a and the second wedge surface b, the gravity of the carrier 500 and the battery 100 borne by the lifting platform 414 does not all act on the slider 413, but the component force of the gravity of the lifting platform 414, the carrier 500 and the battery 100 in the direction perpendicular to the second wedge surface b acts on the slider 413, which is beneficial to reducing the load borne by the slider 413 and improving the carrying capacity and the impact resistance of the first moving mechanism 410.
Moreover, for precision Z-axis lift platforms, load and repositioning accuracy are closely related, while wedge platforms reduce load by virtue of their wedge characteristics, thereby improving repositioning accuracy on the load. That is, in the embodiment of the present application, the load applied to the slider 413 is closely related to the repeated positioning accuracy of the battery, and the wedge structure reduces the load applied to the slider 413, which is beneficial to improving the repeated positioning accuracy of the battery in the battery detection process.
Optionally, the first moving mechanism 410 further includes a sliding rail, an extending direction of the sliding rail is parallel to an extending direction of the first screw 412, the sliding block 413 extends into the sliding rail, and the sliding block 413 is slidably matched with the sliding rail. In this way, the sliding rail guides the moving direction of the sliding block 413, so that the sliding block 413 can move smoothly along the extending direction of the first screw 412.
In an alternative embodiment, the movement mechanism 400 further includes a limiting member, which is in limiting fit with the lifting platform 414 in the extending direction of the first screw rod 412, so that the lifting platform 414 is prevented from moving along with the slider 413, and one of the first wedge surface a and the second wedge surface b is provided with a bar-shaped wedge, and the other is provided with a bar-shaped groove, and under the condition that the first wedge surface a is in abutting contact with the second wedge surface b, the bar-shaped wedge extends into the bar-shaped groove, and the bar-shaped wedge is matched with the bar-shaped groove. When the first driving source 411 drives the slider 413 to move through the first screw rod 412, the bar-shaped wedge moves along the extending direction of the bar-shaped groove under the limiting action of the limiting piece, so as to realize the movement of the lifting platform 414 along the first direction relative to the slider 413. And the groove wall surfaces of the strip-shaped wedge blocks and the strip-shaped grooves are in limit fit in the direction perpendicular to the first wedge surface a or the second wedge surface b, so that the first wedge surface a and the second wedge surface b are prevented from being separated in the moving process.
In another embodiment, as shown in fig. 3, the movement mechanism 400 further includes a guide member 415, where the guide member 415 is fixed relative to the housing of the first driving source 411, and the guide member 415 is slidably connected to the lifting platform 414 along the first direction. Optionally, the guide member 415 includes a guide rail and a slide bar, the guide rail is connected to the base 800, the guide rail extends along a first direction, the lifting platform 414 is connected to the slide bar, the slide bar is slidably engaged with the guide rail, and the lifting platform 414 and the slide bar are movable along an extending direction of the guide rail. In this way, the guide member 415 restricts the movement direction of the lift platform 414 so as to move in the first direction, and prevents the lift platform 414 from moving in the other direction relative to the slider 413 so as to separate the first wedge surface a and the second wedge surface b. Alternatively, there may be at least two guide members 415, and each guide member 415 is disposed at a distance.
In the embodiment in which the first wedge surface a and the second wedge surface b are flat, the sliding block 413 and the lifting platform 414 can relatively move only by virtue of the guide part 415, and complex structures such as a bar-shaped wedge block, a bar-shaped groove and the like are not required to be arranged on the first wedge surface a and the second wedge surface b, so that the precision of the equipment is improved.
In an alternative embodiment, as shown in fig. 2, the movement mechanism 400 further includes a rotation mechanism 440, the rotation mechanism 440 is connected to the first movement mechanism 410, the carrier 500 is disposed on the first movement mechanism 410 through the rotation mechanism 440, the rotation mechanism 440 can drive the carrier 500 to rotate the battery 100 around a rotation axis, and the rotation axis is perpendicular to the carrying surface 510, that is, the rotation mechanism 440 can drive the battery 100 to rotate in a plane where the battery 100 is located, and the first movement mechanism 410 drives the carrier 500 and the battery 100 to move along the first direction through the rotation mechanism 440. Alternatively, the rotation mechanism 440 may include a second driving source, a speed reducing mechanism, and a turntable, where the second driving source may be a driving source capable of generating a rotational driving force, such as a driving motor, a pneumatic motor, etc., an output shaft of the second driving source is connected to an input shaft of the speed reducing mechanism, an output shaft of the speed reducing mechanism is connected to the turntable, and the carrier 500 is disposed on the turntable.
With the present embodiment, the rotation positions of the carrier 500 and the battery 100 can be changed by the rotation mechanism 440, so that the radiation source 200 emits the radiation 210 to different positions of the battery 100 in the circumferential direction of the battery 100, and the radiation 210 penetrates through different positions of the battery 100, so as to detect the internal structure of the battery 100 at different angles, which is beneficial to accurately detecting the internal structure of the battery 100 and improving the imaging effect and the detection effect.
Of course, in other embodiments, the movement mechanism 400 may not be provided with the rotation mechanism 440, and the user may manually change the placement position of the same battery 100 on the carrying surface 510, so that the radiation source 200 may emit the radiation 210 to different positions of the battery 100, so as to detect the internal structure of the battery 100 at different angles.
In an alternative embodiment, the movement mechanism 400 further includes a second movement mechanism 420 and a third movement mechanism 430, the second movement mechanism 420 is connected to the first movement mechanism 410, the second movement mechanism 420 can drive the first movement mechanism 410 to move the carrier 500 along the second direction, the third movement mechanism 430 is connected to the second movement mechanism 420, and the third movement mechanism 430 can drive the second movement mechanism 420 to move the first movement mechanism 410 and the carrier 500 along the third direction. Wherein the second direction intersects the third direction, the second direction and the third direction are respectively parallel to the carrying surface 510, i.e. the second direction and the third direction are respectively parallel to the plane in which the battery 100 lies. Optionally, the second direction is perpendicular to the third direction.
Alternatively, the second moving mechanism 420 may include a third driving source, a second screw rod and a second nut, where the third driving source may be a driving source capable of generating a rotational driving force, such as a driving motor, an air motor, etc., the second screw rod extends along the second direction, an output shaft of the third driving source is connected to the second screw rod, the second screw rod is in threaded fit with the second nut, and the first moving mechanism 410 is connected to the second nut, so that when the third driving source works, the second screw rod rotates, and drives the second nut to drive the first moving mechanism 410, the carrier 500 and the battery 100 to move along the second direction; the third moving mechanism 430 may include a fourth driving source, a third screw rod and a third nut, where the fourth driving source may be a driving source capable of generating a rotational driving force by using a driving motor, a pneumatic motor, etc., the fourth driving source may be disposed on the base 800, the third screw rod extends along a third direction, an output shaft of the fourth driving source is connected to the third screw rod, the third screw rod is in threaded fit with the third nut, and the second moving mechanism 420 is connected to the third nut, so that the third screw rod rotates during operation of the fourth driving source, and drives the third nut to drive the second moving mechanism 420, the first moving mechanism 410, the carrier 500 and the battery 100 to move along the third direction.
With the present embodiment, the second moving mechanism 420 and the third moving mechanism 430 are used to drive the carrier 500 and the battery 100 to move in the plane where the battery 100 is located, so as to adjust the position of the battery 100, so that the battery 100 can accurately move to the target position, which is beneficial to accurately penetrating the battery 100 from the corner position of the battery 100 by the radiation source 200 and to detecting the internal structure of the battery 100.
Of course, in other embodiments, the movement mechanism 400 may not include the second movement mechanism 420 and the third movement mechanism 430, and the user may manually adjust the placement position of the battery 100 on the carrying surface 510, so that the battery 100 is located at the target position.
In an alternative embodiment, as shown in fig. 2, the battery detection device further includes an image detection device 600, the image detection device 600 is configured to collect image information of the battery 100 placed on the carrying surface 510, and the image detection device 600 is communicatively connected to the movement mechanism 400, and the battery detection device controls the movement mechanism 400 according to the image information. Alternatively, the image detection apparatus 600 is communicatively connected to the first moving mechanism 410, the second moving mechanism 420, the third moving mechanism 430, and the rotating mechanism 440, respectively; the image detecting device 600 may be an industrial camera, as shown in fig. 2, where the battery detecting apparatus further includes a top stand 900, the top stand 900 is located above the base 800, the industrial camera is mounted on the top stand 900, the battery 100 is located within an imaging range of the industrial camera, and the actual position of the battery 100 is detected by the industrial camera, so as to determine whether the battery 100 is located at the target position.
In the case where the image information acquired by the image detection device 600 indicates that the battery 100 is at the target position, the movement mechanism 400 stops operating, that is, the first movement mechanism 410, the second movement mechanism 420, the third movement mechanism 430, and the rotation mechanism 440 stop operating; in the case where the image information acquired by the image detection apparatus 600 indicates that the battery 100 is not at the target position, the image detection apparatus 600 may calculate a difference between the actual position and the target position of the battery 100 according to the image information, and the movement mechanism 400 acts to reduce the difference, optionally, as shown in fig. 7, the difference between the actual position and the target position of the battery 100 may have an angle difference α in addition to a displacement difference, where the displacement difference is a displacement difference of the battery 100 in the plane of the battery 100, specifically, displacement differences between the actual position and the target position of the battery 100 in the second direction and the third direction are x and y, respectively, and driving the battery 100 to move by the second movement mechanism 420 and the third movement mechanism 430 may eliminate the displacement difference; the angle difference α is an angle difference between the battery 100 and the plane in which the battery 100 is placed, and the angle difference can be eliminated by driving the battery 100 to rotate by the rotation mechanism 440.
Optionally, the battery detection device further comprises a control device, which is respectively connected with the image detection device 600 and the motion mechanism 400 in a communication way, and the control device controls the motion mechanism 400 according to the image information detected by the image detection device 600.
With the present embodiment, the image detection device 600 is used to detect whether the battery 100 moves to the target position, and can instruct the movement mechanism 400 to drive the battery 100 to move to make the battery 100 accurately move to the target position, so as to avoid the situation that errors exist in the placement position of the battery 100 due to the manual placement of the battery 100.
Further alternatively, the battery detection device further includes a light compensating lamp 610 and a light compensating bracket 910, the light compensating bracket 910 is located between the top bracket 900 and the base 800, and the light compensating bracket 910 is connected to the top bracket 900 through a connecting rod, where the light compensating lamp 610 is disposed at an edge of the light compensating bracket 910, and the light compensating lamps 610 may be plural and used for compensating light for a shooting range of the image detection device 600. Further, the light supplementing bracket 910 is provided with an opening for light to enter the image detecting apparatus 600.
Of course, in other embodiments, the battery detection device may also detect the actual position of the battery 100 by other means, alternatively, the battery detection device may be a position sensor, with which the actual position of the battery 100 is detected, and the position sensor is communicatively connected to the movement mechanism 400.
In an alternative embodiment, as shown in fig. 2, the battery detection apparatus further includes a photo-electric protection device 700, the photo-electric protection device 700 is disposed on at least one side of the movement mechanism 400, and the photo-electric protection device 700 is communicatively connected to the movement mechanism 400. The photo-protection apparatus 700 forms a detection light curtain between the radiation source 200 and the movement mechanism 400 and/or between the detector 300 and the movement mechanism 400, and in case the detection light curtain detects the battery 100 or the movement mechanism 400 or the carrier 500, the movement mechanism 400 stops working. Specifically, the photo-protection device 700 generally comprises a light emitter and a light receiver, wherein the light emitter generates an encoded infrared light beam, the light receiver receives the corresponding light beam, a rectangular protection area, i.e. a detection light curtain, is generated between the light emitter and the light receiver, when an opaque object enters the protection area, the infrared light beam is blocked, and the light emitter or the light receiver generates a blocking signal to be output to the controller. One of the light emitter and the light receiver may be disposed on the base 800, and the other one may be disposed on the top bracket 900. In addition, in order to avoid the light supplementing support 910 blocking the detection light curtain, the light supplementing support 910 is further provided with a light curtain opening 911 for the detection light curtain to pass through, and the size of the light curtain opening 911 is adapted to the size of the light curtain.
With the present embodiment, the radiation source 200 or the detector 300 is protected by the photo protection device 700, so that the movement mechanism 400 or the battery 100 or the carrier 500 is prevented from striking the radiation source 200 or the detector 300 due to human error operation.
Optionally, the number of the photo protection devices 700 is at least two, wherein two photo protection devices 700 are respectively located at a side of the movement mechanism 400 facing the radiation source 200 and a side of the movement mechanism 400 facing the detector 300, and the detection light curtains of the two photo protection devices 700 are respectively located between the radiation source 200 and the movement mechanism 400 and between the detector 300 and the movement mechanism 400. Thus, the two photo protection devices 700 protect the radiation source 200 and the detector 300, respectively, from being impacted by the radiation source 200 and the detector 300.
Of course, in other embodiments, the battery detection device may not be provided with the photoelectric protection apparatus 700, so that the user can accurately control the movement mechanism 400, and avoid the collision of the battery 100 or the carrier 500 or the movement mechanism 400 with the radiation source 200 or the detector 300 caused by an excessive moving distance or an excessive rotating angle.
Referring to fig. 5 to fig. 7, based on the battery detection apparatus disclosed in the present application, an embodiment of the present application further provides a battery detection method, which is applied to the battery detection apparatus in the foregoing embodiment, and the battery detection method includes:
and S100, placing the battery 100 on the bearing surface 510 of the bearing member 500. Optionally, the movement mechanism 400 of the battery detection device further includes a second movement mechanism 420, a third movement mechanism 430 and a rotation mechanism 440, before the battery 100 is placed, the second movement mechanism 420 and the third movement mechanism 430 are controlled to drive the carrier 500 to move, and the rotation mechanism 440 is controlled to drive the carrier 500 to rotate, so that the carrier 500 moves to the initial position, and at this time, the user can conveniently place the battery 100 directly on the carrying surface 510 of the carrier 500.
After the battery 100 is placed on the bearing surface 510 of the bearing member 500, the first moving mechanism 410, the second moving mechanism 420 and the third moving mechanism 430 are further controlled to drive the bearing member 500 to move the battery 100 respectively, and the rotating mechanism 440 is controlled to drive the bearing member 500 to rotate the battery 100, so that the battery 100 moves to the target position.
S110, turning on the ray source 200 and the detector 300. Specifically, after the battery 100 is placed on the carrying surface 510 of the carrier 500, and before the first moving mechanism 410 drives the battery 100 to move in the first direction, the radiation source 200 and the detector 300 are turned on. Of course, the radiation source 200 and the detector 300 may be turned on at other times, so long as the radiation source 200 and the detector 300 are turned on when the radiation source 200 is required to emit the radiation 210.
S200, controlling the first moving mechanism 410 to drive the carrier 500 and the battery 100 to move along the first direction, so that the radiation 210 emitted by the radiation source 200 penetrates different portions of the battery 100 in the thickness direction thereof. Since the battery 100 is provided with the plurality of metal sheets 110 in the thickness direction thereof, the central ray of the ray source 200 may sequentially pass through each metal sheet 110 of the battery 100 during the movement of the battery 100 in the first direction, and the central ray may penetrate through the entire battery 100 to scan the respective metal sheets 110 of the battery 100. Alternatively, the first moving mechanism 410 includes the above first driving source 411, the first screw 412, the slider 413, and the lifting platform 414, so the carrier 500 and the battery 100 are driven to move in the first direction by controlling the first driving source 411.
By adopting the battery detection method, the detector 300 can accurately obtain the image of each metal sheet 110, so that the internal structure of the battery 100 is detected, and the imaging effect and the detection effect are improved.
In an alternative embodiment, the battery detection method further comprises:
and S300, repeatedly controlling the second moving mechanism 420 and the third moving mechanism 430 to work, and controlling the rotating mechanism 440 to drive the battery 100 to rotate so as to enable the battery 100 to move to a target position, wherein the target position is a calibrated final detection position. In the case where the battery 100 is at the target position, a step of controlling the first moving mechanism 410 to drive the carrier 500 and the battery 100 to move in the first direction is performed.
By adopting the step, the ray 210 penetrates through the battery 100 at the target position, so that the internal structure of the battery 100 is detected, detection deviation caused by the fact that the battery 100 is not at the target position is avoided, and the imaging effect and the detection effect are improved.
Alternatively, the second moving mechanism 420 and the third moving mechanism 430 are repeatedly controlled to operate, and the rotating mechanism 440 is controlled to drive the battery 100 to rotate, so that the battery 100 moves to the first target position, the second target position, the third target position, and the fourth target position in sequence.
Further alternatively, the rotation mechanism 440 includes the above second driving source and the turn table, the second movement mechanism 420 includes the above third driving source, the second screw rod, and the second nut, and the third movement mechanism 430 includes the above fourth driving source, the third screw rod, and the third screw thread, so that the third driving source and the fourth driving source are repeatedly controlled to operate, and the second driving source is controlled to drive the battery 100 to rotate, so that the battery 100 is sequentially moved to the first target position, the second target position, the third target position, and the fourth target position.
The first target position is a position where the first angle β1 of the battery 100 is opposite to the radiation emission port of the radiation source 200, the second target position is a position where the second angle β2 of the battery 100 is opposite to the radiation emission port of the radiation source 200, the third target position is a position where the third angle β3 of the battery 100 is opposite to the radiation emission port of the radiation source 200, and the fourth target position is a position where the fourth angle β4 of the battery 100 is opposite to the radiation emission port of the radiation source 200. The "target position" referred to in step S300 may refer to at least one of the first target position, the second target position, the third target position, and the fourth target position.
The first angle β1, the second angle β2, the third angle β3, and the fourth angle β4 of the battery 100 are four angles that the battery 100 exhibits when the thickness of the battery 100 is ignored.
Referring to fig. 8-11, it can be seen that, in the process of switching from the first target position to the second target position, or from the second target position to the third target position, or from the third target position to the fourth target position, the battery 100 needs to rotate by a certain angle and translate by a certain distance in the plane of the battery 100 itself, so as to ensure that the radiation emitting port is opposite to the corresponding angle.
Also, in the case where the battery 100 is at the first target position, the second target position, the third target position, and the fourth target position, respectively, the step of controlling the first moving mechanism 410 to drive the carrier 500 and the battery 100 to move in the first direction is performed.
To sum up, step S300 specifically includes: step S310, controlling the second moving mechanism 420, the third moving mechanism 430 and the rotating mechanism 440 to move the battery 100 to the first target position, referring to fig. 8, when the ray 210 of the ray source 200 penetrates the battery 100 from the first angle β1 of the battery 100, then performing step S200, and the detector 300 stores and reconstructs the images, thereby obtaining the internal structure of the battery 100; step S320, controlling the second moving mechanism 420, the third moving mechanism 430 and the rotating mechanism 440 to move the battery 100 to the second target position, referring to fig. 9, at this time, the ray 210 of the ray source 200 penetrates the battery 100 from the second angle β2 of the battery 100, further performing step S200, and the detector 300 stores and reconstructs the acquired image again; step S330, controlling the second moving mechanism 420, the third moving mechanism 430 and the rotating mechanism 440 again to move the battery 100 to the third target position, referring to fig. 10, at this time, the ray 210 of the ray source 200 penetrates the battery 100 from the third angle β3 of the battery 100, further performing step S200, and the detector 300 stores and reconstructs the acquired image again; in step S340, the second moving mechanism 420, the third moving mechanism 430, and the rotating mechanism 440 are controlled to move the battery 100 to the fourth target position, and as shown in fig. 11, the radiation 210 of the radiation source 200 passes through the battery 100 from the fourth corner β4 of the battery 100, and further, in step S200, the detector 300 stores the acquired image and reconstructs it again.
By adopting the step, the rays 210 penetrate through the battery 100 at the positions of the corners of the battery 100 respectively, so that the internal structure of the battery 100 is detected under different angles, and finally, the internal structure of the whole battery 100 can be accurately obtained through each reconstructed image, thereby being beneficial to improving the imaging effect and the detection effect.
In an alternative embodiment, the battery detection method further comprises:
s400, the image detection device 600 is controlled to acquire an image, and the actual position of the battery 100 is detected based on the acquired image. Specifically, the image detection device 600 is located above the base 800, and the battery 100 is within the imaging range of the image detection device 600, and the image detection device 600 acquires an image of the battery 100 to detect the actual position of the battery 100. The implementation of determining the actual position of the battery based on the battery detection image may be implemented based on the theoretical principle of the target recognition and detection algorithm, which is not described herein.
S500, a displacement difference value and an angle difference value between the actual position and the target position of the battery 100 are calculated. The target position here may be the first target position or the second target position or the third target position or the fourth target position above. Alternatively, the image detection apparatus 600 may be an industrial camera that compares the actual position of the battery 100 with the target position to calculate the displacement difference and the angle difference. The image position of the battery on the detected image can be converted into a physical position (namely, can be understood as an actual position) under a world coordinate system through a coordinate transformation principle, then compared with a target position of the battery, a displacement difference value and an angle difference value between the two are determined, and then the position difference value is converted into control parameters, so that the battery is controlled to perform position correction until the displacement difference value between the actual position of the battery and the target position is in a preset displacement difference range, and the angle difference value is in a preset angle difference range. Further, for example, regarding calculation of the deviation value between the actual position of the battery and the target position, after determining the image position of the battery on the detected image, the target position in the world coordinate system may be converted into a position representation of the image coordinate system based on the coordinate transformation principle, and then compared with the image position of the battery on the detected image, the displacement difference value and the angle difference value between the two are determined as the displacement difference value and the angle difference value between the actual position of the battery and the target position, and then used for correction control of the battery position.
And S600, controlling the second moving mechanism 420 and the third moving mechanism 430 to drive the battery 100 to move according to the displacement difference value until the displacement difference value is within a preset displacement difference range. The preset displacement difference range may be zero. Optionally, the third driving source and the fourth driving source are controlled to work according to the displacement difference value until the displacement difference value is zero.
And S700, controlling the rotating mechanism 440 to drive the battery 100 to rotate according to the angle difference value until the angle difference value is within a preset angle difference range. Wherein, the preset angle difference range may be zero. Optionally, the second driving source is controlled to work according to the angle difference value until the angle difference value is zero. In the case where the displacement difference and the angle difference are both zero, it is explained that the battery 100 moves to the corresponding target position.
By adopting the step, the difference between the actual position and the target position is obtained by detecting the actual position of the battery 100, and then the battery 100 is driven to move by the movement mechanism 400 to reduce the difference, so that the battery 100 can be ensured to move to the target position accurately, and the situation that the error exists in the placement position of the battery 100 due to the manual placement of the battery 100 is avoided.
Of course, in other embodiments, the battery detection method may not perform steps S400-S700, and the user may directly manually accurately place the battery 100 at the target position and replace the battery 100 at the target position.
The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are to be protected by the present application.

Claims (10)

1. A battery detection apparatus, characterized by comprising:
the battery pack comprises a motion mechanism (400) and a bearing piece (500), wherein the motion mechanism (400) comprises a first motion mechanism (410), the bearing piece (500) is arranged on the first motion mechanism (410), the bearing piece (500) is provided with a bearing surface (510) for placing a battery (100), the first motion mechanism (410) can drive the bearing piece (500) to drive the battery (100) to move along a first direction, and the first direction is perpendicular to the bearing surface (510);
a radiation source (200) and a detector (300), the radiation source (200) and the detector (300) being located on opposite sides of the movement mechanism (400), respectively, the radiation source (200) being adapted to emit radiation (210), the detector (300) being adapted to receive the radiation (210) penetrating the battery (100), the first movement mechanism (410) driving the carrier (500) and the battery (100) to move in the first direction in case the radiation source (200) emits the radiation.
2. The battery detection apparatus according to claim 1, wherein the first moving mechanism (410) includes a first driving source (411), a first screw (412), a slider (413), and a lifting platform (414), an output shaft of the first driving source (411) is connected to the first screw (412), the first screw (412) is in threaded engagement with the slider (413), an extending direction of the first screw (412) is parallel to the bearing surface (510), the slider (413) is provided with a first wedge surface (a), the lifting platform (414) is provided with a second wedge surface (b), the first wedge surface (a) is engaged with the second wedge surface (b), the bearing member (500) is disposed on the lifting platform (414),
when the first driving source (411) drives the sliding block (413) to move along the extending direction of the first screw rod (412) through the first screw rod (412), the sliding block (413) drives the lifting platform (414) to move along the first direction through the first wedge surface (a) and the second wedge surface (b).
3. The battery detection apparatus according to claim 2, wherein the movement mechanism (400) further includes a guide member (415), the guide member (415) being fixed with respect to the housing of the first driving source (411), the guide member (415) being slidably connected with the lifting platform (414) in the first direction.
4. The battery detection device according to claim 1, wherein the movement mechanism (400) further comprises a rotation mechanism (440), the rotation mechanism (440) is connected to the first movement mechanism (410), the carrier (500) is disposed on the first movement mechanism (410) through the rotation mechanism (440), and the rotation mechanism (440) can drive the carrier (500) to rotate the battery (100) around a rotation axis, and the rotation axis is perpendicular to the carrying surface (510).
5. The battery testing device of claim 1, wherein the movement mechanism (400) further comprises a second movement mechanism (420) and a third movement mechanism (430), the second movement mechanism (420) is connected to the first movement mechanism (410), the second movement mechanism (420) can drive the first movement mechanism (410) to drive the carrier (500) to move in a second direction, the third movement mechanism (430) is connected to the second movement mechanism (420), the third movement mechanism (430) can drive the second movement mechanism (420) to drive the first movement mechanism (410) and the carrier (500) to move in a third direction,
wherein the second direction intersects the third direction, the second direction and the third direction being parallel to the bearing surface (510), respectively.
6. The battery detection apparatus according to claim 1, further comprising an image detection device (600), wherein the image detection device (600) is configured to collect image information of the battery (100) placed on the carrying surface (510), and wherein the image detection device (600) is communicatively connected to the movement mechanism (400), and wherein the battery detection apparatus controls the movement mechanism (400) according to the image information.
7. The battery detection apparatus according to claim 1, further comprising a photo-protection device (700), the photo-protection device (700) being arranged on at least one side of the movement mechanism (400), and the photo-protection device (700) being in communication with the movement mechanism (400), the photo-protection device (700) forming a detection light curtain, the detection light curtain being located between the radiation source (200) and the movement mechanism (400) and/or between the detector (300) and the movement mechanism (400),
in case the detection light curtain detects the battery (100) or the movement mechanism (400) or the carrier (500), the movement mechanism stops working.
8. A battery detection method applied to the battery detection apparatus according to any one of claims 1 to 7, characterized in that the battery detection method comprises:
placing the battery (100) on a bearing surface (510) of the bearing (500);
the first moving mechanism (410) is controlled to drive the carrier (500) and the battery (100) to move along a first direction, so that rays (210) emitted by the ray source (200) penetrate through different parts of the battery (100) in the thickness direction of the battery.
9. The battery detection method according to claim 8, characterized in that the battery detection method further comprises:
controlling the second moving mechanism (420) and the third moving mechanism (430) to work, and controlling the rotating mechanism (440) to drive the battery to rotate, so that the battery (100) moves to a target position, wherein the target position is a calibrated final detection position;
the step of controlling the first moving mechanism (410) to drive the carrier (500) and the battery (100) to move in a first direction is performed with the battery (100) at the target position.
10. The battery detection method according to claim 8, characterized in that the battery detection method further comprises:
controlling an image detection device (600) to acquire an image and detecting the actual position of the battery (100) according to the image;
calculating a displacement difference and an angle difference between the actual position and a target position of the battery (100);
controlling a second moving mechanism (420) and a third moving mechanism (430) to drive the battery (100) to move according to the displacement difference value until the displacement difference value is within a preset displacement difference range;
and controlling a rotating mechanism (440) to drive the battery (100) to rotate according to the angle difference value until the angle difference value is within a preset angle difference range.
CN202311085517.0A 2023-08-25 2023-08-25 Battery detection device and battery detection method Pending CN117129494A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117489932A (en) * 2024-01-02 2024-02-02 苏州一目万相科技有限公司 Detector device, imaging device, and control method of imaging device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117489932A (en) * 2024-01-02 2024-02-02 苏州一目万相科技有限公司 Detector device, imaging device, and control method of imaging device
CN117489932B (en) * 2024-01-02 2024-03-19 苏州一目万相科技有限公司 Detector device, imaging device, and control method of imaging device

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