CN214893407U

CN214893407U - Package detection device

Info

Publication number: CN214893407U
Application number: CN202120617606.5U
Authority: CN
Inventors: 吴凯强
Original assignee: Evergrande New Energy Technology Shenzhen Co Ltd
Current assignee: Evergrande New Energy Technology Shenzhen Co Ltd
Priority date: 2021-03-26
Filing date: 2021-03-26
Publication date: 2021-11-26
Anticipated expiration: 2031-03-26

Abstract

The utility model relates to a battery detection field provides a packaging detection device, including control system to and all be connected with control system electricity and plane position all adjustable at least one first detection subassembly and at least one second detection subassembly, the second detection subassembly sets up with first detection subassembly relatively, first detection subassembly includes the first body of exploring and connects in the first probe of the first body, the second detection subassembly includes the second body of exploring and connects in the second body of exploring and be close to the second probe of one side of the first probe; when the banding of electricity core was arranged in between first detection subassembly and the second detection subassembly, first probe and second probe can move in opposite directions and the both sides of butt banding respectively to record the thickness of banding. The packaging detection device is accurate in detection and convenient to use, cannot damage semi-finished products of the battery cell, is convenient to detect the packaging effect of each edge sealing of each battery cell in real time, and is convenient to judge the risks of short circuit and liquid leakage, so that the packaging stability of the manufactured battery cell can be guaranteed.

Description

Package detection device

Technical Field

The utility model belongs to the technical field of the battery detects, especially, relate to an encapsulation detection device.

Background

In order to prevent the short circuit and leakage phenomenon from occurring in the process of manufacturing the battery cell, the related industry adopts a battery cell short circuit test or a tension test to the packaging position to check whether the packaging effect is qualified or not after packaging so as to ensure the packaging stability. However, the tensile test can only be performed by sampling detection, but not every electric core, and the detection accuracy is poor; and the cell short circuit test can only judge whether the cell has a short circuit and cannot judge whether the cell has a liquid leakage risk.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of the utility model is to provide an encapsulation detection device to solve the encapsulation effect of how accurate every electric core of detecting, and be convenient for compromise the problem of judging short circuit and weeping risk.

In order to achieve the above object, the utility model adopts the following technical scheme: a packaging detection device comprises a control system, at least one first detection assembly and at least one second detection assembly, wherein the first detection assembly and the second detection assembly are electrically connected with the control system and adjustable in plane position;

when the banding of electricity core was arranged in between first detection subassembly and the second detection subassembly, first probe and second probe can move in opposite directions and the both sides of butt banding respectively to record the thickness of banding.

By adopting the above scheme, encapsulation detection device can be when arranging in between first detection subassembly and the second detection subassembly at the top banding or the side banding of waiting to detect the electric core, control first probe and second probe and move in opposite directions, until respectively the butt wait to detect the relative both sides of position in the banding, to record at least one department of banding and wait to detect the thickness data of position, control system compares the thickness data that acquire with the qualified thickness interval of predetermineeing afterwards, can fall in qualified interval through thickness data, and judge whether qualified the encapsulation effect of this banding is qualified, whether there is the risk of short circuit and weeping. The packaging detection device is accurate and convenient to detect, cannot damage semi-finished products of the battery cell, is convenient to detect the packaging effect of each edge sealing of each battery cell in real time and timely, and is convenient to judge short circuit and leakage risks, so that unqualified products can be effectively prevented from flowing into a next procedure, the yield of the battery cell in the production process can be improved, the packaging stability of the manufactured battery cell can be guaranteed, and the safety performance of the manufactured battery cell can be guaranteed.

In one embodiment, the first probe comprises a plurality of first probing protrusions, the first probing protrusions being adjustable with respect to a center position of the first probe; the second probe comprises a plurality of second detection bulges, and the center positions of the second detection bulges relative to the second probe are adjustable and are arranged opposite to the first detection bulges; wherein the first detecting bulge and the second detecting bulge which are opposite can jointly measure the thickness data of the sealing edge.

By adopting the scheme, the relative first probe and the second probe can detect the thickness data of multiple sites at one time in a certain range through multiple groups of relative first detection bulges and second detection bulges, then the control system can compare the multiple groups of thickness data with a preset qualified thickness interval one by one, or compare the average value of the multiple groups of thickness data with the preset qualified thickness interval, and judge whether the packaging effect of the edge sealing is qualified or not and whether the risk of short circuit and liquid leakage exists or not. Therefore, the error degree of the measured thickness data can be reduced to a certain degree, and the detection precision and the detection accuracy of the packaging detection device can be improved.

In one embodiment, the first detecting protrusions jointly enclose a detecting area, and when the first detecting protrusions are gathered, the length of the detecting area in the width direction of the edge sealing is not more than 4 mm.

By adopting the above technical scheme, can make each first detection protruding the detection district that encloses when gathering together and close the formation can be less than the width of most banding in the width direction's of banding length to can make first probe and second probe be applicable to the thickness that detects the limited banding of most width, thereby can improve encapsulation detection device's suitability and commonality.

In one embodiment, the package inspection apparatus further includes a supporting base, and a first mounting base and a second mounting base both connected to the supporting base and disposed opposite to each other, the first mounting base is provided with a first sliding rail slidably connected to each first probe, the second mounting base is provided with a second sliding rail slidably connected to each second probe, and the second sliding rail is disposed opposite to the first sliding rail.

By adopting the above scheme, the accessible supporting seat supports, fixed first mount pad and second mount pad, support a plurality of first spy bodies through first mount pad, and support a plurality of second through the second mount pad and visit the body, afterwards, each first spy body can be followed first slide rail and slided and realize position adjustment, each second is visited the body and can be followed the second slide rail and slided and realize position adjustment, based on this, can make the installation status of first spy body and second spy body stable, and the position adjustment of the first body of spy of being convenient for and second spy body, the first body of spy of being convenient for and second spy body realize counterpointing, thereby can improve encapsulation detection device's performance.

In one embodiment, the package testing device further includes a positioning device disposed on a side of the first mounting base adjacent to the second mounting base and/or disposed on a side of the second mounting base adjacent to the first mounting base.

By adopting the scheme, when the top seal edge or the side seal edge of the battery cell to be detected is arranged between the first detection assembly and the second detection assembly, the encapsulation detection device can firstly determine the width of the seal edge through the position finder and position each encapsulation position to be detected, and then the control system can slide each first probe body to a proper position along the first slide rail and slide each second probe body to a proper position along the second slide rail based on the positioning result of the position finder; based on this, can be convenient for first detection subassembly, the encapsulation position that awaits measuring and second detection subassembly realize quick, accurate counterpoint in the thickness direction of banding to can improve encapsulation detection device's performance, can improve encapsulation detection device's detection efficiency and detection accuracy.

In one embodiment, two positioning instruments are arranged, and the two positioning instruments are respectively arranged on two opposite sides of the first sliding rail or the second sliding rail.

By adopting the above scheme, the accessible is located two locaters of the relative both sides of first slide rail or second slide rail jointly and is confirmed the width of banding and fix a position each encapsulation position that awaits measuring to can further improve first detection subassembly when moving to the suitable position along first slide rail, and the second detects the subassembly and when moving to the suitable position along the second slide rail, with the counterpoint precision of the encapsulation position that awaits measuring, thereby can further improve encapsulation detection device's performance, can further improve encapsulation detection device's detection efficiency and detection accuracy.

In one embodiment, the locator is an infrared locator.

By adopting the scheme, the rapid positioning can be conveniently realized, and the positioning precision is relatively high, so that the service performance of the packaging detection device can be further improved, and the detection efficiency and the detection accuracy of the packaging detection device can be further improved.

In one embodiment, the first probe body is prism-shaped, and the second probe body is prism-shaped.

By adopting the scheme, the first probe body and the second probe body have certain structural strength, and can be limited to relatively rotate around the central axis thereof on the basis of the edges and corners of the first probe body and the second probe body, particularly, the relative rotation of the first probe body and the second probe body during detection is limited, so that the detection accuracy of the packaging detection device can be further improved.

In one embodiment, the first probe is telescopically coupled to the first probe body and the second probe is telescopically coupled to the second probe body.

Through adopting above-mentioned scheme, realize counterpointing the back in the thickness direction of banding at first detection subassembly, the encapsulation position that awaits measuring and second detection subassembly, first probe and second probe can maintain the position unchangeable, and afterwards, first probe can stretch out and draw back and be close to or keep away from the banding for first probe, and the second probe can stretch out and draw back and be close to or keep away from the banding for the second probe to record the thickness data of banding. Based on this, can simplify the structure setting of encapsulation detection device on the basis of the detection utility of assurance encapsulation detection device, and still do benefit to and improve encapsulation detection device's detection efficiency, be convenient for realize detecting fast high-efficiently.

In one embodiment, the package testing device further comprises a pressure sensor and a displacement sensor electrically connected to the control system, the first probe and the second probe.

By adopting the scheme, the pressure between the first probe and the seal edge and the pressure between the second probe and the seal edge can be monitored in real time through the pressure sensor, so that whether the first probe and the second probe are abutted to the seal edge or not can be accurately judged; when the control system confirms that the first probe and the second probe are both abutted to the edge sealing based on the pressure sensor, the thickness of the edge sealing can be accurately obtained based on relevant data of the displacement sensor electrically connected with the first probe and the second probe. Therefore, the precision of the measured thickness data can be further improved, and the detection precision and the detection accuracy of the packaging detection device can be further improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a schematic structural diagram of a package inspection apparatus according to an embodiment of the present invention;

fig. 2 is a bottom view of the first mounting seat, the first detecting assembly and the positioning apparatus provided in fig. 1;

fig. 3 is a schematic view of the first detecting assemblies and the second detecting assemblies provided by the embodiment of the present invention when they are separated;

FIG. 4 is a schematic illustration of the first and second probe assemblies provided in FIG. 3 during testing;

fig. 5 is a schematic view of a first probe according to an embodiment of the present invention when the first detecting protrusions are gathered;

FIG. 6 is a first schematic view of the first probe head provided in FIG. 5 with the first probing protrusions spread;

fig. 7 is a second schematic view of the first probe provided in fig. 5 when each first probing protrusion is spread.

Wherein, in the figures, the respective reference numerals:

100-a control system; 200-a first probe assembly, 210-a first probe body, 220-a first probe head, 221-a first probe protrusion; 300-a second probe assembly, 310-a second probe body, 320-a second probe head; 400-a support seat; 500-a first mounting seat, 501-a first slide rail; 600-a second mounting seat, 601-a second slide rail; 700-positioning apparatus.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The following describes the specific implementation of the present invention in more detail with reference to specific embodiments:

referring to fig. 1, 3 and 4, an embodiment of the present invention provides a package inspection apparatus, including a control system 100, at least one first probe assembly 200 and at least one second probe assembly 300, both electrically connected to the control system 100 and having adjustable planar positions, the second probe assembly 300 being disposed opposite to the first probe assembly 200, the first probe assembly 200 including a first probe 210 and a first probe 220 connected to the first probe 210, the second probe assembly 300 including a second probe 310 and a second probe 320 connected to the second probe 310 near the first probe 220; when the banding of electric core was arranged in between first detection subassembly 200 and the second detection subassembly 300, first probe 220 and second probe 320 can move in opposite directions and the both sides of butt banding respectively to record the thickness of banding.

It should be noted here that, in the encapsulation operation of the battery cell, the positive electrode side and the negative electrode side are generally encapsulated and form the top sealing edge, and then the side is encapsulated and form the side sealing edge, wherein, after the top sealing edge is formed, whether the encapsulation effect of the top sealing edge is qualified or not can be detected by the encapsulation detection device provided by the embodiment, and in the same way, after the side sealing edge is formed, whether the encapsulation effect of the side sealing edge is qualified or not can be detected by the encapsulation detection device provided by the embodiment, so that the encapsulation effect of each battery cell can be monitored in real time and in real time, and unqualified products are prevented from flowing into the next procedure, thereby ensuring the encapsulation stability of the manufactured battery cell, and improving the yield in the production process of the battery cell.

Specifically, the detection process of the package detection apparatus provided in this embodiment is as follows: arrange the top banding or the side banding of the electric core that will detect in first detection subassembly 200 and second detection subassembly 300 earlier, afterwards, first detection subassembly 200 and second detection subassembly 300 can move respectively to the relative both sides of the position of waiting to detect of banding, at this moment, first detection subassembly 200, the position of waiting to detect of banding, second detection subassembly 300 is in the thickness direction a looks facies of banding, afterwards, first probe 220 can be followed the thickness direction a of banding and be close to the banding gradually, until the one side of the position of waiting to detect of butt banding, meanwhile, second probe 320 also is followed the thickness direction a of banding and is close to the banding gradually, until the opposite side of the position of waiting to detect of butt banding, afterwards, first probe 220 and second probe 320 that all butt to the position of waiting to detect of banding can obtain the thickness of banding in waiting to detect position department, control system 100 is after obtaining thickness data, can judge whether this thickness data is in the qualified thickness interval of predetermineeing, if the edge is within the qualified interval, the packaging effect of the edge sealing is qualified, and the risks of short circuit and liquid leakage are low; if the sealing edge falls outside the qualified interval, the sealing effect of the sealing edge is unqualified, the risk of short circuit and liquid leakage is high, and the sealing edge can be packaged again or the semi-finished product can be directly scrapped.

Optionally, the first probe 220 may move along the thickness direction a of the edge seal relative to the first probe 210 to approach or separate from the edge seal, or the first detection assembly 200 may move along the thickness direction a of the edge seal to approach or separate from the edge seal, which is not limited in this embodiment; similarly, the second probe 320 can move relative to the second probe 310 along the thickness direction a of the edge seal to approach or depart from the edge seal, or the second probe assembly 300 can move along the thickness direction a of the edge seal to approach or depart from the edge seal.

Optionally, the moving distance of the first probe 220 and the second probe 320 may be integrated to obtain the related thickness data, or the related thickness data may be measured by other means, which is not limited in this embodiment.

Referring to fig. 2, for the same edge seal, thickness data of a plurality of positions to be detected are obtained, so that accuracy of a detection result can be improved to a certain extent. Based on this, the package inspection apparatus can cooperate with the plurality of first probing assemblies 200 and the plurality of second probing assemblies 300 to simultaneously measure the thickness data of a plurality of positions to be inspected. For example, assuming that it is desired to measure the thickness data of the top sealing edge at the corresponding position of the tab and at the opposite sides of the tab, that is, the total three positions to be detected, the package inspection device may measure the thickness data of the three positions to be detected simultaneously by using three first detection assemblies 200 and three second detection assemblies 300 opposite to the first detection assemblies 200. Therefore, the detection efficiency can be improved, and the accuracy of the detection result can be improved.

In summary, by adopting the above-mentioned scheme, when the top edge seal or the side edge seal of the electric core to be detected is placed between the first detecting component 200 and the second detecting component 300, the encapsulation detecting device controls the first probe 220 and the second probe 320 to move in opposite directions until abutting against the opposite two sides of the position to be detected of the edge seal respectively, so as to measure the thickness data of at least one position to be detected of the edge seal, and then the control system 100 compares the obtained thickness data with the preset qualified thickness interval, i.e. whether the thickness data falls into the qualified interval, and judges whether the encapsulation effect of the edge seal is qualified or not, and whether the risk of short circuit and liquid leakage exists or not. The packaging detection device is accurate and convenient to detect, cannot damage semi-finished products of the battery cell, is convenient to detect the packaging effect of each edge sealing of each battery cell in real time and timely, and is convenient to judge short circuit and leakage risks, so that unqualified products can be effectively prevented from flowing into a next procedure, the yield of the battery cell in the production process can be improved, the packaging stability of the manufactured battery cell can be guaranteed, and the safety performance of the manufactured battery cell can be guaranteed.

Referring to fig. 5, 6 and 7, in the present embodiment, the first probe 220 includes a plurality of first probing protrusions 221, and the center position of the first probing protrusions 221 relative to the first probe 220 is adjustable; the second probe 320 includes a plurality of second probing protrusions (not shown), the second probing protrusions are adjustable with respect to the center of the second probe 320 and are disposed opposite to the first probing protrusions 221; wherein the first and second

opposing detection protrusions

221 and 221 are capable of collectively measuring the edge seal thickness data.

It should be noted that the first probe 220 may be provided with a plurality of first probing protrusions 221, and the plurality of first probing protrusions 221 may be spread apart from the center of the first probe 220 or gathered together with respect to the center of the first probe 220. Illustratively, the first probe head may be connected between the center of the first probe head 220 and the first probing protrusion 221 through a telescopic mechanism, so that the telescopic mechanism drives the first probing protrusion 221 to move relative to the center of the first probe head 220, thereby achieving position adjustment.

Correspondingly, the second probe 320 opposite to the first probe 220 is provided with an equal amount of second probing protrusions, and each second probing protrusion is adjusted to a position corresponding to each first probing protrusion 221 one by one, so that multi-point thickness detection can be realized within a certain detection range through the plurality of opposite first probing protrusions 221 and second probing protrusions.

Therefore, by adopting the above scheme, the first probe 220 and the second probe 320 can detect the thickness data of multiple sites at one time in a certain range through multiple sets of the first detecting protrusion 221 and the second detecting protrusion, and then the control system 100 can compare the multiple sets of thickness data with the preset qualified thickness interval one by one, or compare the average value of the multiple sets of thickness data with the preset qualified thickness interval, so as to determine whether the sealing effect of the edge sealing is qualified or not, and whether the risk of short circuit and liquid leakage exists or not. Therefore, the error degree of the measured thickness data can be reduced to a certain degree, and the detection precision and the detection accuracy of the packaging detection device can be improved.

In addition, an example is provided herein to facilitate understanding of the present embodiment, but not to limit the present embodiment. Illustratively, it is assumed that the package inspection apparatus is provided with four first probing assemblies 200 and four second probing assemblies 300, each first probe 220 is provided with six first probing protrusions 221, and each second probe 320 is correspondingly provided with six second probing protrusions. Wherein, No.1 the first detection assembly 200 and the second detection assembly 300 are used for measuring the packaging thickness between the aluminum plastic film and the aluminum plastic film on one side of the tab (the qualified range is 0.23-0.27 mm), No.2 the first detection assembly 200 and the second detection assembly 300 and No.3 the first detection assembly 200 and the second detection assembly 300 are respectively used for measuring the packaging thickness at two positions of the corresponding region of the tab (the qualified range of the thickness of the corresponding region of the tab is 0.7-0.9 mm, the qualified range of the thickness of the drinking region of the negative electrode tab is 0.56-0.72 mm), No.4 the first detection assembly 200 and the second detection assembly 300 are used for measuring the packaging thickness between the aluminum plastic film and the aluminum plastic film on the other side of the tab (the qualified range is 0.23-0.27 mm), six first detection bulges 221 of the first probe 220 are in the state as shown in fig. 7 (the two adjacent first bulge detection data are basically consistent and can be used as a group of data, thus three sets of data can be integrated for one test per first probe 220). Then, after detecting the top seal edge of the positive electrode side and the top seal edge of the negative electrode side, respectively, the detection data are arranged as follows:

the thickness data is compared with the qualified range, so that the packaging effects of the top sealing edge of the positive electrode side and the top sealing edge of the negative electrode side of the battery cell can be judged to be qualified, and the risks of short circuit and liquid leakage are low.

Referring to fig. 2 and 5, in the present embodiment, the first detecting protrusions 221 together enclose a detecting region, and when the first detecting protrusions 221 are gathered together, the length of the detecting region in the width direction b of the sealing edge does not exceed 4 mm.

It should be noted that the size of the detection region enclosed by each first detection protrusion 221 when being gathered together is often smaller than the size of the detection region enclosed by each first detection protrusion 221 when being spread apart. Therefore, by adopting the above scheme, the length of the detection region, which is formed by enclosing each first detection protrusion 221 when gathering together, in the width direction b of the seal edge can be smaller than the width of most seal edges, so that the first probe 220 and the second probe 320 can be suitable for detecting the thickness of most seal edges with limited width, and the applicability and the universality of the packaging detection device can be improved.

Referring to fig. 1 and 2, in the present embodiment, the package inspection apparatus further includes a supporting base 400, and a first mounting base 500 and a second mounting base 600 both connected to the supporting base 400 and disposed opposite to each other, the first mounting base 500 is provided with a first sliding rail 501 slidably connected to each first probe 210, the second mounting base 600 is provided with a second sliding rail 601 slidably connected to each second probe 310, and the second sliding rail 601 is disposed opposite to the first sliding rail 501.

By adopting the above scheme, the first mounting seat 500 and the second mounting seat 600 can be supported and fixed by the supporting seat 400, the plurality of first probe bodies 210 are supported by the first mounting seat 500, and the plurality of second probe bodies 310 are supported by the second mounting seat 600, then, each first probe body 210 can slide along the first sliding rail 501 to realize position adjustment, and each second probe body 310 can slide along the second sliding rail 601 to realize position adjustment, so that the mounting states of the first probe body 210 and the second probe body 310 are stable, the position adjustment of the first probe body 210 and the second probe body 310 is facilitated, the alignment of the first probe body 210 and the second probe body 310 is facilitated, and the use performance of the packaging detection device can be improved.

Optionally, the first slide rail 501 and the second slide rail 601 are both formed by extending along a straight line, so that, during detection, the width direction b of the sealed edge can be made to be substantially parallel to the extending direction of the first slide rail 501 and the second slide rail 601, so that the first detection component 200 and the second detection component 300 can be adjusted to the position corresponding to the package position to be detected based on detection requirements, and the use performance of the package detection device can be further improved.

Referring to fig. 1 and fig. 2, in the present embodiment, the package inspection apparatus further includes a positioning device 700, where the positioning device 700 is disposed on a side of the first mounting base 500 close to the second mounting base 600 and/or is disposed on a side of the second mounting base 600 close to the first mounting base 500.

By adopting the above scheme, when the top edge seal or the side edge seal of the electric core to be detected is placed between the first detecting component 200 and the second detecting component 300, the encapsulation detecting device may determine the width of the edge seal and position each encapsulation position to be detected through the positioning instrument 700, and then the control system 100 may slide each first probe 210 along the first slide rail 501 to a proper position and slide each second probe 310 along the second slide rail 601 to a proper position based on the positioning result of the positioning instrument 700; based on this, can be convenient for first detection subassembly 200, the encapsulation position that awaits measuring and second detection subassembly 300 realize quick, accurate counterpoint in the thickness direction a of banding to can improve encapsulation detection device's performance, can improve encapsulation detection device's detection efficiency and detection accuracy.

Referring to fig. 1 and fig. 2, in the present embodiment, two positioning instruments 700 are provided, and the two positioning instruments 700 are respectively disposed on two opposite sides of the first sliding rail 501 or the second sliding rail 601.

By adopting the above scheme, the two locaters 700 that the accessible was located the relative both sides of first slide rail 501 or second slide rail 601 respectively confirm the width of banding and fix a position each encapsulation position that awaits measuring jointly to can further improve first detection subassembly 200 when moving to the suitable position along first slide rail 501, and second detection subassembly 300 when moving to the suitable position along second slide rail 601, with the counterpoint precision of the encapsulation position that awaits measuring, thereby can further improve encapsulation detection device's performance, can further improve encapsulation detection efficiency and the detection accuracy of detection device.

Referring to fig. 2, in the present embodiment, the positioning device 700 is an infrared positioning device.

Referring to fig. 1 and 2, in the present embodiment, the first probe 210 is prism-shaped, and the second probe 310 is prism-shaped.

By adopting the above scheme, the first probe 210 and the second probe 310 have certain structural strength, and can be limited to relatively rotate around the central axis thereof based on the edges and corners of the first probe 210 and the second probe 310, especially limited to relatively rotate during detection, so that the detection accuracy of the packaging detection device can be further improved.

Referring to fig. 1 and 2, in the present embodiment, the first probe 220 is telescopically connected to the first probe 210, and the second probe 320 is telescopically connected to the second probe 310.

By adopting the above scheme, after the first detection assembly 200, the package position to be tested, and the second detection assembly 300 are aligned in the thickness direction a of the edge seal, the first probe 210 and the second probe 310 may maintain the positions unchanged, and then the first probe 220 may extend and retract relative to the first probe 210 to approach or leave the edge seal, and the second probe 320 may extend and retract relative to the second probe 310 to approach or leave the edge seal, so as to measure the thickness data of the edge seal. Based on this, can simplify the structure setting of encapsulation detection device on the basis of the detection utility of assurance encapsulation detection device, and still do benefit to and improve encapsulation detection device's detection efficiency, be convenient for realize detecting fast high-efficiently.

Referring to fig. 1, in the present embodiment, the package inspection apparatus further includes a pressure sensor (not shown) and a displacement sensor (not shown) electrically connected to the control system 100, the first probe 220 and the second probe 320.

By adopting the scheme, the pressure between the first probe 220 and the seal edge and the pressure between the second probe 320 and the seal edge can be monitored in real time through the pressure sensor, so that whether the first probe 220 and the second probe 320 are abutted to the seal edge or not can be accurately judged; when the control system 100 confirms that both the first probe 220 and the second probe 320 abut the edge seal based on the pressure sensors, the thickness of the edge seal can be accurately derived based on data associated with displacement sensors electrically connected to the first probe 220 and the second probe 320. Therefore, the precision of the measured thickness data can be further improved, and the detection precision and the detection accuracy of the packaging detection device can be further improved.

Illustratively, after the first detection assembly 200, the position of the package to be tested, and the second detection assembly 300 are aligned in the thickness direction a of the edge seal, the first probe 220 and the second probe 320 may move in opposite directions to be close to the edge seal, after the first probe 220 and the second probe 320 are both abutted to the edge seal and the pressure sensor monitors that the pressure reaches 0.1Mpa in real time, the thickness data of the edge seal may be obtained based on the displacement sensor, and then the first probe 220 and the second probe 320 are away from the edge seal, and the control system 100 determines whether the package effect of the edge seal is qualified based on the thickness data.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the present invention.

Claims

1. A packaging detection device is characterized by comprising a control system, at least one first detection assembly and at least one second detection assembly, wherein the first detection assembly and the second detection assembly are both electrically connected with the control system and adjustable in plane position;

when the seal edge of the battery cell is arranged between the first detection assembly and the second detection assembly, the first probe and the second probe can move in opposite directions and respectively abut against the two sides of the seal edge, and the thickness of the seal edge is measured.

2. The package testing device of claim 1, wherein said first probe includes a plurality of first probing protrusions, said first probing protrusions being adjustable with respect to a center position of said first probe; the second probe comprises a plurality of second detection bulges, the central positions of the second detection bulges relative to the second probe are adjustable, and the second detection bulges are arranged opposite to the first detection bulges; wherein the first detecting bulge and the second detecting bulge which are opposite can jointly measure the thickness data of the sealing edge.

3. The package testing device of claim 2, wherein the first detecting protrusions together enclose a detecting region, and when the first detecting protrusions are gathered together, the length of the detecting region in the width direction of the sealing edge does not exceed 4 mm.

4. The package testing device as claimed in claim 1, further comprising a supporting base, and a first mounting base and a second mounting base both connected to the supporting base and disposed opposite to each other, wherein the first mounting base is provided with a first sliding rail slidably connected to each of the first probes, and the second mounting base is provided with a second sliding rail slidably connected to each of the second probes, and the second sliding rail is disposed opposite to the first sliding rail.

5. The package testing device according to claim 4, further comprising a positioning tool disposed on a side of the first mounting base adjacent to the second mounting base and/or on a side of the second mounting base adjacent to the first mounting base.

6. The package testing device according to claim 5, wherein two positioning tools are provided, and two positioning tools are respectively provided on opposite sides of the first slide rail or the second slide rail.

7. The package testing device according to claim 5, wherein said position finder is an infrared position finder.

8. The package testing device of claim 1, wherein the first probe is prism-shaped and the second probe is prism-shaped.

9. The package testing device of claim 1, wherein the first probe is telescopically coupled to the first probe body and the second probe is telescopically coupled to the second probe body.

10. The package testing device according to any of claims 1-9, further comprising a pressure sensor and a displacement sensor electrically connected to each of the control system, the first probe, and the second probe.