CN220552429U - Battery conductive coating thickness detection device - Google Patents

Abstract

The utility model provides a device for detecting the thickness of a conductive coating of a battery, and relates to the technical field of battery detection equipment. The thickness detection device for the conductive coating of the battery is provided with the sound wave receiving and transmitting module for receiving and transmitting sound wave signals along the thickness direction of the conductive coating of the current collector, the thickness of the coating is determined according to the propagation time of sound waves in the coating, the influence of environmental factors on a detection result can be avoided, the accuracy of the thickness detection of the conductive coating and the reliability of the result are improved, and the thickness detection efficiency of the conductive coating can be effectively improved in a non-contact detection mode. On this basis, still distribute and set up a plurality of sound wave transceiver modules on the installation terminal surface of supporting shell, and the installation terminal surface sets up towards the arbitrary terminal surface of conductive coating along thickness direction again for a plurality of sound wave transceiver modules all can be towards conductive coating transceiver sound wave signal, realize the comprehensive detection to conductive coating overall thickness, obtain conductive coating holistic coating thickness condition, thereby guarantee the production quality of lithium cell.

Description

Battery conductive coating thickness detection device

Technical Field

The utility model relates to the technical field of battery detection equipment, in particular to a device for detecting the thickness of a conductive coating of a battery.

Background

In the production and preparation process of a battery, for example, in the preparation process of a lithium battery, in order to improve the processability of the lithium battery and reduce the resistance of a pole piece or the internal resistance of the lithium battery, a layer of conductive coating is generally coated on the surfaces of positive and negative current collectors of the lithium battery.

After the coating of the conductive coating is finished on the lithium battery, in order to ensure that the thickness of the conductive coating meets the performance requirement of the lithium battery, the thickness of the conductive coating is detected, and the thickness detection result is fed back so as to timely adjust the manufacturing parameters according to the detection result, thereby ensuring that the coating quality of the conductive coating meets the requirement.

At present, an optical method or a mechanical method is mostly adopted for detecting the thickness of the conductive coating, however, the optical or mechanical measurement mode has certain limitation, the optical method has higher requirements on environmental conditions, the reliability of detection results in some environments is poor, the mechanical method is easy to damage the conductive coating, the detection of the coating thickness of the conductive coating is inaccurate, and the coating quality of the conductive coating is adversely affected.

Disclosure of Invention

The utility model solves the problem of improving the reliability and accuracy of the thickness detection result of the conductive coating and simultaneously ensuring the coating quality of the conductive coating of the lithium battery.

To solve the above problems, in one aspect, the present utility model provides a device for detecting a thickness of a conductive coating of a battery, comprising:

a support case provided with a mounting end face configured to face any one end face of the battery conductive coating in the thickness direction;

the sound wave receiving and transmitting modules are multiple and distributed on the installation end face, and the sound wave receiving and transmitting modules face the battery conductive coating.

Compared with the prior art, the device for detecting the thickness of the battery conductive coating has the beneficial effects that: the method comprises the steps that a supporting shell is arranged to serve as a supporting structure of a battery conductive coating thickness detection device, an installation end face is arranged on the supporting shell, the installation end face can be arranged towards any end face of a conductive coating of a current collector along the thickness direction, a plurality of sound wave receiving and transmitting modules are distributed on the installation end face, the sound wave receiving and transmitting modules can emit sound wave signals towards the conductive coating and receive reflected sound wave signals, and the arrangement is such that the sound wave receiving and transmitting modules emit sound wave signals towards one end face of the conductive coating along the thickness direction, sound wave pulses emitted by the sound wave receiving and transmitting modules propagate towards the conductive coating and can pass through the conductive coating along the thickness direction of the conductive coating, at the moment, the sound wave pulses are reflected by the substrate and return to the sound wave receiving and transmitting modules again along the thickness direction of the conductive coating, after the sound wave receiving the reflected sound wave signals, the propagation time of sound waves in the conductive coating can be obtained through the time difference between the emitted sound wave pulses and the reflected sound wave signals, and finally the thickness of the conductive coating is determined; in the process of detecting the thickness of the conductive coating through sound waves, the sound waves are not easy to be influenced by environmental factors, the influence of the environmental factors on the thickness detection result can be avoided, the reliability of the thickness detection result of the conductive coating is effectively ensured, the sound wave receiving and transmitting module does not need to be in contact with the conductive coating when detecting the thickness of the conductive coating, the damage to the conductive coating is avoided through a non-contact detection mode, the thickness detection can be directly carried out on the conductive coating, and compared with a mechanical or optical detection method, the preparation time is effectively shortened, and the detection efficiency is improved. On this basis, set up the sound wave transceiver module into a plurality ofly, a plurality of sound wave transceiver module all distribute on the installation terminal surface, when carrying out conductive coating's thickness detection, a plurality of sound wave transceiver module can transmit the sound wave pulse to conductive coating surface's different positions simultaneously, realize the thickness detection to conductive coating surface's different positions, but conductive coating holistic coating thickness condition realizes the real-time supervision to conductive coating's coating thickness, thereby can adjust conductive coating's coating manufacturing parameter according to holistic testing result, guarantee conductive coating's coating manufacturing quality, and then guarantee lithium cell's production quality.

Optionally, the support shell includes a support plate, the installation end face is located on the support plate, the support plate has two, two the installation end face of support plate is relative parallel arrangement.

Optionally, the backup pad includes a plurality of assembly plates, and a plurality of assembly plates are along the detachable connection in proper order of first direction, wherein, first direction with the terminal surface is installed in parallel.

Optionally, the mounting end face is provided with a placing groove, the placing groove faces the opening of the conductive coating, and the sound wave receiving and transmitting module is detachably mounted in the placing groove.

Optionally, the standing groove extends along the second direction and sets up, and a plurality of the sound wave transceiver module is put into same in the standing groove, the sound wave transceiver module is constructed to follow the standing groove slides, the second direction with the installation terminal surface is parallel.

Optionally, the support shell further comprises a shell, a containing cavity is arranged in the shell, and the two support plates are connected with the same side of the shell.

Optionally, the housing includes a plurality of assembled shells, and a plurality of assembled shells are configured to be detachably connected in sequence along a thickness direction of the battery conductive coating.

Optionally, a plurality of inserting grooves are formed in the shell, the inserting grooves are arranged at intervals along the thickness direction of the battery conductive coating, and the supporting plate is detachably connected with the shell through the inserting grooves.

Optionally, the sound wave receiving and transmitting module comprises a plurality of sound wave receiving and transmitting sensors, and the sound wave receiving and transmitting sensors are all arranged at intervals along the installation end face.

Optionally, the acoustic transceiver sensor includes an acoustic receiver and an acoustic transmitter, the acoustic receiver is a hollow structure with an opening at one end, and the acoustic transmitter is embedded into the acoustic receiver through the opening end of the acoustic receiver.

Drawings

FIG. 1 is a schematic diagram of a device for detecting the thickness of a conductive coating of a battery according to an embodiment of the utility model;

fig. 2 is a schematic structural diagram of an acoustic transceiver sensor according to an embodiment of the present utility model.

Reference numerals illustrate:

1-a support shell; 11-a support plate; 12-a housing; 2-an acoustic transceiver module; 21-an acoustic transceiver sensor; 211-an acoustic receiver; 212-sonic emitter.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

In the coordinate system XYZ provided herein, the forward direction of the X axis represents the right direction, the reverse direction of the X axis represents the left direction, the forward direction of the Y axis represents the rear direction, the reverse direction of the Y axis represents the front direction, the forward direction of the Z axis represents the upper direction, and the reverse direction of the Z axis represents the lower direction. Also, it is noted that the terms "first," "second," and the like in the description and claims of the present utility model and in the above-described figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the utility model described herein may be implemented in sequences other than those illustrated or otherwise described herein.

In one aspect, an embodiment of the present utility model provides a device for detecting a thickness of a conductive coating of a battery, including: the battery pack comprises a support shell 1, wherein a mounting end face is arranged on the support shell 1, and the mounting end face is configured to face any end face of the battery conductive coating along the thickness direction; the sound wave receiving and transmitting modules 2 are arranged on the mounting end face, and the sound wave receiving and transmitting modules 2 are arranged towards the battery conductive coating.

In this embodiment, as shown in fig. 1, the thickness direction of the battery conductive coating is the Z-axis direction, and the mounting end face is parallel to the XY plane.

It should be noted that, in the currently used optical method and mechanical method, the optical method has high requirements on environmental conditions, and the reliability of the detection result in some environments is poor, for example, the optical scheme is sensitive to factors such as coating color, illumination condition and surface geometry, and expensive equipment is required, and is difficult to be applied to the detection of the thickness of the coating in dangerous environments such as high temperature or explosion, while the mechanical method is easy to damage the conductive coating, so that the detection of the thickness of the conductive coating is inaccurate, for example, the detection is easy to be influenced by brittleness and non-uniformity of the coating, and proper detection method and strength are required to be selected to avoid damaging the coating.

It should be noted that, in the process of manufacturing the lithium battery, the thickness of the conductive coating needs to be detected, so as to determine whether the thickness of the conductive coating is within a required thickness range after the thickness of the conductive coating is obtained, if the thickness exceeds the required thickness range, the coating parameters of the conductive coating need to be adjusted in time, that is, the manufacturing parameters need to be adjusted through monitoring the thickness of the conductive coating, so that the coating quality of the conductive coating is ensured, and the production quality of the lithium battery is improved.

In this embodiment, as shown in fig. 1, a supporting shell 1 is provided as a supporting structure of a device for detecting the thickness of a conductive coating of a battery, a mounting end face is provided on the supporting shell 1, the mounting end face can be provided towards any end face of the conductive coating of the current collector in the thickness direction, a plurality of sound wave transceiver modules 2 are distributed on the mounting end face, the sound wave transceiver modules 2 are provided towards the conductive coating of the battery, that is, the sound wave transceiver modules 2 can emit sound wave signals towards the conductive coating and receive reflected sound wave signals, and in this way, since the mounting end face faces towards one end face of the conductive coating in the thickness direction, sound wave pulses emitted by the sound wave transceiver modules 2 propagate towards the conductive coating and can pass through the conductive coating in the thickness direction of the conductive coating, and at the interface between the conductive coating and the current collector substrate, at this time, the sound wave pulses are reflected by the substrate, after the sound wave transceiver modules 2 receive the reflected sound wave signals, the propagation time of the sound wave in the conductive coating can be obtained through the time difference between the emitted sound wave pulses and the reflected sound wave signals, and finally the thickness of the conductive coating is determined; in the process of detecting the thickness of the conductive coating through sound waves, the sound waves are not easy to be influenced by environmental factors, the influence of the environmental factors on the thickness detection result can be avoided, the reliability of the thickness detection result of the conductive coating is effectively ensured, the sound wave receiving and transmitting module 2 does not need to be in contact with the conductive coating when detecting the thickness of the conductive coating, the damage to the conductive coating is avoided through a non-contact detection mode, meanwhile, the thickness detection can be directly carried out on the conductive coating, and compared with a mechanical or optical detection method, the preparation time is effectively shortened, and the detection efficiency is improved. On this basis, set up acoustic transceiver module 2 into a plurality ofly, a plurality of acoustic transceiver module 2 all distribute on the installation terminal surface, when carrying out conductive coating's thickness detection, a plurality of acoustic transceiver module 2 can transmit the sound wave pulse to conductive coating surface's different positions simultaneously, realize the thickness detection to conductive coating surface's different positions, but conductive coating holistic coating thickness condition realizes the real-time supervision to conductive coating's coating thickness, thereby can adjust conductive coating's coating manufacturing parameter according to holistic testing result, guarantee conductive coating's coating manufacturing quality, and then guarantee lithium cell's production quality.

Specifically, in the coating manufacturing process of the conductive coating, the thickness of the conductive coating is possibly uneven or the coating is leaked, so that the plurality of sound wave receiving and transmitting modules 2 are distributed on the mounting end surface of the supporting shell 1, sound wave pulses emitted by the plurality of sound wave receiving and transmitting modules 2 towards the conductive coating can cover the whole end surface of the conductive coating along the thickness direction, the thickness of different positions of the conductive coating is detected, the thickness variation condition of the conductive coating is reflected, the uneven coating condition or the coating leakage condition of the conductive coating can be found in time, the accurate control of the detection result of the whole thickness of the conductive coating is realized, the manufacturing parameters of the conductive coating are adjusted in time according to the detection result, the coating thickness of the conductive coating is ensured to meet the production requirement, the production quality of lithium batteries is improved, and particularly, in the process of mass production of batteries, the variation trend of the coating thickness of the whole conductive coating can be predicted better, the basis is provided for adjusting the manufacturing parameters, the coating thickness of the conductive coating can be ensured to be within the preset range, the manufacturing quality of the lithium batteries is ensured, and the defective rate is effectively reduced.

It should be noted that, as shown in fig. 1, in this embodiment, the plurality of acoustic transceiver modules 2 on the mounting end face may be sequentially arranged at intervals in the same direction, and in other embodiments of the present utility model, the plurality of acoustic transceiver modules 2 may also be distributed at intervals along different directions, so as to implement thickness detection on different positions of the conductive coating.

Alternatively, the support housing 1 includes the support plate 11, the mounting end surfaces are located on the support plate 11, the support plate 11 has two, and the mounting end surfaces of the two support plates 11 are disposed relatively in parallel.

In order to realize that the thickness of the conductive coating is detected from the upper surface and the lower surface of the positive and negative current collector, in this embodiment, as shown in fig. 1, the supporting plates 11 are arranged in two, and the installation end surfaces of the two supporting plates 11 are relatively parallel, that is, the direction in which the acoustic wave receiving and transmitting module 2 on one supporting plate 11 transmits the acoustic wave signal is opposite to the direction in which the acoustic wave receiving and transmitting module 2 on the other supporting plate 11 transmits the acoustic wave signal, so that the positive and negative current collector can be arranged between the two supporting plates 11, when the positive and negative current collector is arranged between the two supporting plates 11, the acoustic wave receiving and transmitting module 2 on the two supporting plates 11 respectively transmits the acoustic wave signal towards the conductive coating on the upper surface and the lower surface of the positive and negative current collector, and finally reflected by the substrate of the current collector, the acoustic wave receiving and transmitting module 2 on the two supporting plates 11 respectively correspond to the reflected acoustic wave signals, thereby realizing the thickness detection of all the conductive coating on the whole current collector, further realizing the overall detection of the thickness of the conductive coating, finding the coating on any position of the current collector, improving the coating non-uniformity or detecting the thickness of the conductive coating on the current collector, and the quality of the battery can be adjusted according to the preset manufacturing quality, the quality and the quality of the battery can be improved, and the quality of the quality can be adjusted.

In addition, after the emitted sound wave signal passes through one conductive coating, one sound wave receiving and transmitting module 2 can continue to pass through the substrate of the current collector and the other conductive coating, so that transmission of sound waves is realized, and finally, the sound wave is received by the other opposite sound wave receiving and transmitting module 2.

It should be noted that in other embodiments of the present utility model, more than two support plates 11 may be provided, where a plurality of support plates 11 are disposed at intervals along the thickness direction of the conductive coating, and the acoustic transceiver modules 2 are disposed on the upper and lower end surfaces of the support plate 11 between the two support plates 11, so that the current collectors of the plurality of batteries may be respectively disposed between the two support plates 11, so as to realize simultaneous detection of the thicknesses of the conductive coatings on the current collectors of the plurality of batteries, thereby being beneficial to improving the working efficiency.

Alternatively, the support plate 11 includes a plurality of assembling plates detachably connected in sequence in a first direction parallel to the mounting end face.

In this embodiment, as shown in fig. 1, the first direction is parallel to the XY plane, specifically, the first direction is the X-axis direction, and in other embodiments of the present utility model, the first direction may be the Y-axis direction or any direction between the X-axis direction and the Y-axis direction.

In order to be convenient for detect the thickness of conductive coating on the battery current collector of equidimension, in this embodiment, set up a plurality of spliced plates and follow the detachable connection in proper order of first direction, form backup pad 11, like this set up, can be according to the battery current collector of equidimension, adjust the quantity of spliced plates that the connection formed backup pad 11, thereby adjust the size of backup pad 11, and the terminal surface is parallel with first direction, thereby can adjust the size of terminal surface, and install and distribute a plurality of sound wave transceiver modules 2 on the terminal surface of backup pad 11, through the regulation to the size of backup pad 11, the conductive coating's that sound wave transceiver module 2 on the adjustable terminal surface can cover area, and then satisfy and detect the conductive coating's on the battery current collector of equidimension thickness, promote battery conductive coating thickness detection device's application scope.

It should be noted that, in this embodiment, the opposite sides of the plurality of assembling blocks along the first direction are respectively provided with a wedge block and a wedge groove, and the wedge block of one assembling block is placed in the wedge groove of the other assembling block, so that the detachable connection between the assembling blocks can be realized.

Optionally, a placing groove is formed in the mounting end face, the placing groove is arranged towards the opening of the conductive coating, and the acoustic wave receiving and transmitting module 2 is detachably mounted in the placing groove.

In order to be convenient for adjust the quantity and the position of the sound wave transceiver module 2 on the installation terminal surface, in this embodiment, the standing groove that sets up towards electrically conductive coating opening has been set up on the installation terminal surface, and sound wave transceiver module 2 demountable installation is in the standing groove, set up like this, sound wave transceiver module 2 both accessible standing groove is stable towards electrically conductive coating receives and dispatches sound wave signal, realize the thickness detection to electrically conductive coating, moreover, because sound wave transceiver module 2 on the installation terminal surface has a plurality ofly, consequently, the standing groove also has a plurality of, place sound wave transceiver module 2 in the different positions of installation terminal surface through the standing groove, be convenient for carry out thickness detection to electrically conductive coating of equidimension, through set up a plurality of standing grooves and sound wave transceiver module 2 and the detachable connection of standing groove on backup pad 11, can adjust the quantity of sound wave transceiver module 2 and installation terminal surface, satisfy the different thickness detection precision requirement and the size requirement to make sound wave transceiver module 2's quantity and position satisfy the detection needs of electrically conductive coating thickness.

It should be noted that in this embodiment, threaded holes may be respectively disposed on the inner walls of the acoustic transceiver module 2 and the placement groove, and then the detachable connection between the acoustic transceiver module 2 and the placement groove may be realized by screws.

Optionally, the placement groove extends along a second direction, the plurality of acoustic transceiver modules 2 are placed in the same placement groove, the acoustic transceiver modules 2 are configured to slide along the placement groove, and the second direction is parallel to the mounting end surface.

In this embodiment, as shown in fig. 1, the second direction is parallel to the XY plane, specifically, the second direction is the X-axis direction, and in other embodiments of the present utility model, the second direction may be the Y-axis direction or any direction between the X-axis direction and the Y-axis direction.

In order to further improve the convenience of adjusting the number and the position of the sound wave receiving and transmitting modules 2 on the installation end face, in the embodiment, the placing grooves are extended along the second direction, a plurality of sound wave receiving and transmitting modules 2 can be placed in the same placing groove and can slide along the placing grooves, and thus, the sound wave receiving and transmitting modules 2 can stably transmit and receive sound wave signals towards the conductive coating through the placing grooves, so that the thickness detection of the conductive coating is realized, the sound wave receiving and transmitting modules 2 with different numbers can be placed in the same placing groove, the sound wave receiving and transmitting modules 2 slide along the placing grooves, the number and the position of the sound wave receiving and transmitting modules 2 on the installation end face are adjusted, the thickness detection of the conductive coating with different sizes is facilitated, and the thickness detection precision requirements on the conductive coating are met, so that the number and the position of the sound wave receiving and transmitting modules 2 meet the detection requirement of the thickness of the conductive coating.

Optionally, the support shell 1 further comprises a shell 12, a containing cavity is arranged in the shell 12, and two support plates 11 are connected with the same side of the shell 12.

In order to ensure stability of acoustic wave propagation and timely feedback of thickness detection results, in this embodiment, as shown in fig. 1, the support shell 1 is further provided with a shell 12, where the support plate 11 is connected with the shell 12, ensuring structural stability of the support plate 11, and a containing cavity is provided in the shell 12, where the containing cavity is approved to contain a processing unit, where the processing unit may be electrically connected with the acoustic transceiver module 2, so that after the acoustic transceiver module 2 transmits and receives acoustic signals, the processing unit may calculate characteristics such as time difference between reflected signals and transmitted signals, so as to calculate thickness of a coating, and the shell 12 may effectively protect the processing unit, so that the thickness detection results may be timely fed back while ensuring working stability of the processing unit. On the basis, as shown in fig. 1, two support plates 11 are arranged to be connected with the same side of a shell 12, so that the two support plates 11 and the shell 12 form a laid-down U-shaped structure, the support area and the support stability of the whole support shell 1 are improved, meanwhile, a current collector of a battery is convenient for the current collector to extend into the side of an opening of the U-shaped structure, and the current collector is arranged between the two support plates 11, so that an acoustic wave receiving and transmitting module 2 can transmit acoustic wave signals to conductive coatings on the upper surface and the lower surface of the current collector.

In this embodiment, the processing unit may be electrically connected to the acoustic transceiver module 2 through a cable by using a control element such as a signal processing circuit, a microprocessor or a digital signal processor, and a storage element, where the control element such as the signal processing circuit may convert a received acoustic signal into a digital signal and process the digital signal, analyze the physical characteristics of the conductive coating according to the characteristics such as a time difference and an amplitude between the reflected signal and the transmitted signal, calculate the thickness of the coating, and control the acoustic transceiver module 2 to emit acoustic waves, so as to also realize real-time monitoring of the coating thickness of the conductive coating. The cable can penetrate into the supporting plate 11 from the inside of the shell 12, the supporting plate 11 protects the cable inside, and the acoustic transceiver module 2 can be electrically connected with the cable after being installed on the supporting plate 11. In addition, through transmitting sound wave signals to a plurality of positions on the surface of the conductive coating, the double-sided dislocation rate, the surface density and the slurry viscosity change of the surface of the conductive coating can be detected, and the weight loss rate can be calculated in a matched mode through winding and unwinding the sound wave signals.

Optionally, the housing 12 includes a plurality of split shells configured for sequential removable connection along the thickness of the battery conductive coating.

In order to facilitate the thickness detection of conductive coating on current collectors with different thicknesses, in this embodiment, a plurality of assembled shells are arranged to be connected in sequence along the thickness direction of the conductive coating of the battery to form a shell 12, the number of assembled shells of the shell 12 formed by the detachable connection is adjusted according to the thickness of the current collector, and the supporting plates 11 are connected with the assembled shells on the shell 12, so that the distance between the two supporting plates 11 can be adjusted, and then current collectors with different thicknesses can be placed between the two supporting plates 11, thereby not only ensuring the structural stability of the thickness detection device of the conductive coating of the whole battery, but also facilitating the thickness detection of the conductive coating on the current collectors with different thicknesses.

In this embodiment, the opposite sides of the multiple assembled shells along the thickness direction of the battery conductive coating are respectively provided with a wedge block and a wedge groove, the wedge block of one assembled shell is placed in the wedge groove of the other assembled shell, so that the detachable connection between the assembled shells can be realized, and in other embodiments of the utility model, the detachable connection of the multiple assembled shells can also be realized through a threaded hole structure and a screw.

Optionally, a plurality of inserting grooves are formed on the housing 12, the plurality of inserting grooves are configured to be arranged at intervals along the thickness direction of the battery conductive coating, and the supporting plate 11 is detachably connected with the housing 12 through the inserting grooves.

In this embodiment, a plurality of inserting grooves can be arranged on the casing 12 along the thickness direction of the battery conductive coating at intervals, and the supporting plates 11 can be detachably connected with the casing 12 through the inserting grooves, so that the positions of the supporting plates 11 on the casing 12 can be adjusted, the distance between the two supporting plates 11 can be adjusted, and the thickness detection of the conductive coating on the current collectors with different thicknesses can be conveniently performed.

In this embodiment, threaded holes may be respectively formed on the inner walls of the support plate 11 and the plugging slot, and then the detachable connection between the support plate 11 and the plugging slot may be realized by screws.

Optionally, the acoustic transceiver module 2 includes a plurality of acoustic transceiver sensors 21, and the plurality of acoustic transceiver sensors 21 are all arranged at intervals along the mounting end surface.

In this embodiment, in order to further improve the density of acoustic detection, thereby improving the accuracy of detecting the thickness of the conductive coating, as shown in fig. 1, a plurality of acoustic transceiver sensors 21 are set to form an acoustic transceiver module 2, and the plurality of acoustic transceiver sensors 21 are arranged along the installation end face at intervals, so that acoustic signals can be emitted towards the surface of the conductive coating, thereby realizing the detection of the thickness of the conductive coating, and the plurality of acoustic transceiver sensors 21 can improve the surface area of the conductive coating covered by one acoustic transceiver module 2, and can also improve the density of acoustic emission.

Alternatively, the acoustic transceiver sensor 21 includes an acoustic receiver 211 and an acoustic transmitter 212, the acoustic receiver 211 being a hollow structure with one end open, the acoustic transmitter 212 being embedded within the acoustic receiver 211 through the open end of the acoustic receiver 211.

In this embodiment, as shown in fig. 2, the acoustic wave receiver 211 and the acoustic wave transmitter 212 are provided to form the acoustic wave transceiver sensor 21, where the acoustic wave receiver 211 is a hollow structure with an opening at one end, and can be mounted on the mounting end surface to ensure stability of receiving acoustic wave signals, and the acoustic wave transmitter 212 is embedded into the acoustic wave receiver 211 through the opening end of the acoustic wave receiver 211, so that stability of transmitting acoustic waves is ensured through the acoustic wave receiver 211.

Illustratively, the sonic receiver 211 and sonic emitter 212 are each cylindrical in configuration, with the open end of the sonic receiver 211 being circular in cross-section.

Although the utility model is disclosed above, the scope of the utility model is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the utility model, and these changes and modifications will fall within the scope of the utility model.

Claims (10)

1. A device for detecting the thickness of a conductive coating of a battery, comprising:

a support case (1), on which a mounting end surface configured to face any one end surface of the battery conductive coating in the thickness direction is provided on the support case (1);

the sound wave receiving and transmitting modules (2) are arranged on the mounting end face in a distributed mode, and the sound wave receiving and transmitting modules (2) face the battery conductive coating.

2. The device for detecting the thickness of a battery conductive coating according to claim 1, wherein the support case (1) includes a support plate (11), the mounting end faces are located on the support plate (11), the support plate (11) has two, and the mounting end faces of the two support plates (11) are arranged relatively in parallel.

3. The device according to claim 2, wherein the support plate (11) comprises a plurality of splice plates, the splice plates being detachably connected in sequence along a first direction, wherein the first direction is parallel to the mounting end face.

4. The device for detecting the thickness of the conductive coating of the battery according to claim 2, wherein a placing groove is formed in the mounting end face, the placing groove is arranged towards the opening of the conductive coating, and the sound wave receiving and transmitting module (2) is detachably mounted in the placing groove.

5. The device according to claim 4, wherein the placement groove is extended in a second direction, a plurality of the sound wave transceiver modules (2) are placed in the same placement groove, the sound wave transceiver modules (2) are configured to slide along the placement groove, and the second direction is parallel to the mounting end surface.

6. The device for detecting the thickness of the conductive coating of the battery according to claim 2, wherein the supporting shell (1) further comprises a shell (12), a containing cavity is arranged in the shell (12), and two supporting plates (11) are connected with the same side of the shell (12).

7. The battery conductive coating thickness detection apparatus according to claim 6, wherein the housing (12) includes a plurality of assembled cases, and a plurality of the assembled cases are configured to be detachably connected in sequence in a thickness direction of the battery conductive coating.

8. The battery conductive coating thickness detection device according to claim 6, wherein a plurality of insertion grooves are provided on the housing (12), the insertion grooves are configured to be disposed at intervals in a thickness direction of the battery conductive coating, and the support plate (11) is detachably connected with the housing (12) through the insertion grooves.

9. The battery conductive coating thickness detection device according to any one of claims 1 to 8, wherein the acoustic wave transceiver module (2) includes a plurality of acoustic wave transceiver sensors (21), and a plurality of the acoustic wave transceiver sensors (21) are all arranged at intervals along the mounting end face.

10. The battery conductive coating thickness detection device according to claim 9, wherein the acoustic wave transceiver sensor (21) comprises an acoustic wave receiver (211) and an acoustic wave transmitter (212), the acoustic wave receiver (211) is a hollow structure with one end open, and the acoustic wave transmitter (212) is embedded into the acoustic wave receiver (211) through the open end of the acoustic wave receiver (211).