Ultrasonic detection device and battery device production system

Abstract

Some embodiments of the present application provide an ultrasonic detection device and a battery device production system, the ultrasonic detection device comprises an ultrasonic probe, an enclosure bulkhead and a sealing structure, the enclosure bulkhead forms an accommodating cavity with an opening, the ultrasonic probe is arranged in the accommodating cavity, the accommodating cavity is used for accommodating a coupling medium, and the opening is used for covering a component to be detected; the sealing structure is arranged on the enclosure wall and surrounds the periphery of the opening. The ultrasonic probe is provided with an accommodating cavity, the accommodating cavity can be filled with a coupling medium for immersing the ultrasonic probe and the to-be-detected part, and the ultrasonic probe can carry out nondestructive testing on the to-be-detected part by utilizing ultrasonic waves propagating in the coupling medium; the possibility that the coupling medium leaks from an interface between the opening and the to-be-detected component is reduced, the stability of the detection process is improved, the coupling medium is not prone to leaking to affect surrounding components, and the use reliability of the ultrasonic detection device is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of battery, in particular to an ultrasonic detection device and a battery device production system. BACKGROUND

[0002] The battery device has the advantages of high specific energy and high power density, and is widely used in energy storage devices such as energy storage containers or energy storage cabinets. The energy storage device can be used in energy storage power stations, wind power systems, solar power systems, mobile power systems or temporary power supply systems.

[0003] In the production process of the battery device, in order to make the battery device have good reliability, some parts need to be detected by a detection device for quality control. How to improve the stability and reliability of detection is more and more concerned by the technical personnel in the field. CONTENT OF THE UTILITY MODEL

[0004] In view of the above problems, the present application provides an ultrasonic detection device and a battery device production system, which has good stability and reliability.

[0005] In the first aspect, some embodiments of the present application provide an ultrasonic detection device, which comprises an ultrasonic probe, a surrounding wall and a sealing structure. The surrounding wall forms a cavity with an opening. The ultrasonic probe is arranged in the cavity. The cavity is used to accommodate a coupling medium. The opening is used to cover a component to be detected. The sealing structure is arranged on the surrounding wall. The sealing structure is arranged around the outer periphery of the opening. The sealing structure is used to seal against the component to be detected.

[0006] In the above structure, the cavity can be filled with a coupling medium that immerses the ultrasonic probe and the component to be detected. The ultrasonic probe can use ultrasonic waves propagating in the coupling medium to perform non-destructive testing on the component to be detected. Since the sealing structure can seal the interface between the opening and the component to be detected, the possibility of leakage of the coupling medium from the interface between the opening and the component to be detected is reduced. This not only helps to improve the stability of the detection process, but also makes the coupling medium less likely to leak and affect the surrounding components, thereby improving the reliability of the use of the ultrasonic detection device.

[0007] According to some embodiments of the present application, the surface of the surrounding wall facing the component to be detected is recessed inward to form a groove. The groove is arranged around the outer periphery of the opening. The sealing structure is connected to the groove and at least part of the sealing structure extends from the groove. This makes the sealing structure able to be positioned on the surrounding wall. Not only does this make the sealing structure easy to connect on the surrounding wall, but also makes the sealing structure less likely to fall off during use of the ultrasonic detection device.

[0008] According to some embodiments of the present application, the sealing structure comprises an elastic layer, the elastic layer is sealingly connected to the inner wall of the groove, the elastic layer and at least part of the cavity of the groove form a sealing structure, and the at least part of the cavity of the groove is filled with buffer gas. By sealingly connecting the elastic layer to the inner wall of the groove, at least part of the cavity surrounded by the elastic layer and the inner wall of the groove forms a sealed cavity, so that the elastic layer and at least part of the cavity of the groove can form a sealing structure in which at least part of the elastic layer extends out of the groove, and the elastic layer of the sealing structure can abut against the component to be detected.

[0009] According to some embodiments of the present application, the sealing structure comprises an elastic member, the elastic member is connected to the groove and at least part of the elastic member extends out of the groove to abut against the component to be detected.

[0010] According to some embodiments of the present application, the ultrasonic detection device further comprises a pressure sensor, and a communication passage is arranged on the surrounding wall, the communication passage communicates the cavity of the groove filled with buffer gas and the pressure sensor. By measuring the air pressure of the buffer gas in the cavity of the groove by using the pressure sensor, the operator can know the air pressure of the buffer gas in the cavity of the groove in time, so that the operator can judge the pressing degree of the ultrasonic detection device to the component to be detected in time, and further judge whether the sealing of the sealing structure to the interface between the opening and the component to be detected is good, which is beneficial to reduce the possibility of leakage of the coupling medium from the interface between the opening and the component to be detected.

[0011] According to some embodiments of the present application, the ultrasonic detection device further comprises a liquid injection mechanism and a controller, the liquid injection mechanism communicates with the container cavity, the controller is electrically connected with the liquid injection mechanism and the pressure sensor, and the controller is configured to control the liquid injection mechanism to inject the coupling medium into the container cavity when the pressure detected by the pressure sensor is greater than a preset value. By configuring the controller to control the liquid injection mechanism to inject the coupling medium into the container cavity when the pressure detected by the pressure sensor is greater than a preset value, when the ultrasonic detection device detects that the pressure detected by the pressure sensor is greater than a preset value, the controller determines that the opening and the component to be detected are well sealed, and at this time, the coupling medium is injected into the container cavity, which is beneficial to reduce the occurrence of the situation that the coupling medium is injected into the opening and the component to be detected before they are well sealed.

[0012] According to some embodiments of the present application, the ultrasonic detection device further comprises a liquid discharge mechanism in communication with the cavity, the liquid discharge mechanism is in communication with the cavity, the controller is electrically connected with the liquid discharge mechanism and the ultrasonic probe, and the controller is configured to control the liquid discharge mechanism to discharge the coupling medium in the cavity when the ultrasonic probe stops emitting ultrasonic waves. After the ultrasonic probe finishes detecting the component to be detected and stops emitting ultrasonic waves, the controller controls the liquid discharge pump in the liquid discharge mechanism to start discharging the coupling medium in the cavity outward, which is beneficial to improve the automation of the ultrasonic detection device.

[0013] According to some embodiments of the present application, the liquid discharge mechanism comprises a liquid discharge pipe provided with a liquid discharge port extending into the cavity. The orientation of the liquid discharge port is arranged along the orientation of the opening, and the liquid discharge port is flush with the opening, so that the liquid discharge port can be relatively close to the component to be detected, and the liquid discharge pipe can discharge the coupling medium on the component to be detected relatively cleanly.

[0014] According to some embodiments of the present application, the pipe wall of the liquid discharge pipe is provided with a channel penetrating through the pipe wall along the radial direction of the liquid discharge pipe. The channel is in communication with the liquid discharge port, and is used to form an aperture between the liquid discharge port and the component to be detected when the liquid discharge pipe sucks the coupling medium outward, which reduces the possibility of vacuum effect occurring between the liquid discharge port and the component to be detected without a gap, and is beneficial to smooth liquid discharge.

[0015] According to some embodiments of the present application, the liquid injection mechanism comprises a liquid injection pipe provided with a liquid injection port. The liquid injection port is arranged in a staggered manner with the liquid discharge port, so that the liquid injection port and the liquid discharge port are not arranged oppositely, and the parts of the liquid injection pipe and the liquid discharge pipe arranged in the cavity are convenient and not prone to interference.

[0016] According to some embodiments of the present application, the liquid discharge pipe is configured to be telescopic along the orientation of the opening. By configuring the liquid discharge pipe to be telescopic along the orientation of the opening, the liquid discharge port of the liquid discharge pipe can move along the orientation of the opening, the liquid discharge port of the liquid discharge pipe can keep adhering to the component to be detected, and the liquid discharge port can discharge the coupling medium on the component to be detected relatively cleanly.

[0017] According to some embodiments of the present application, the ultrasonic detection device further comprises a wiping mechanism for wiping the coupling medium on the component to be detected, which can reduce the residual coupling medium on the component to be detected, and is beneficial to facilitate the subsequent use of the component to be detected.

[0018] According to some embodiments of the present application, the ultrasonic detection device further comprises a wiping mechanism, the wiping mechanism comprises a wiping wheel and an elastic connecting member, the wiping wheel is connected to the surrounding wall through the elastic connecting member, and the wiping wheel protrudes from the opening in the direction of the opening. The wiping wheel is connected to the surrounding wall through the elastic connecting member, and the wiping wheel protrudes from the opening in the direction of the opening, so that after the wiping wheel abuts against the surface of the component to be detected, the elastic connecting member can provide a force to the wiping wheel through elastic deformation, so that the wiping wheel tightly abuts against the component to be detected.

[0019] According to some embodiments of the present application, the ultrasonic detection device further comprises a plugging mechanism, the plugging mechanism is used for plugging the hole on the component to be detected. The plugging mechanism plugs the hole on the component to be detected, so that the coupling medium in the cavity is not easy to leak from the hole when the opening is covered on the component to be detected.

[0020] According to some embodiments of the present application, the plugging mechanism comprises a glue applying mechanism, the glue applying mechanism is provided with sealing glue, and the glue applying mechanism can inject the sealing glue into the hole. The glue applying mechanism can inject the sealing glue into the hole by using a glue injector, so that the hole is plugged.

[0021] According to some embodiments of the present application, the ultrasonic detection device further comprises a support, and the surrounding wall is movably connected to the support in the direction of the opening. The surrounding wall is movably connected to the support in the direction of the opening, so that the surrounding wall can be pressed against the component to be detected by moving in the direction of the opening, and the surrounding wall can be pressed against and separated from the component to be detected by moving on the support, so that the ultrasonic detection device is convenient for detecting the component to be detected.

[0022] In a second aspect, some embodiments of the present application provide a battery device production system, the battery device production system comprises the ultrasonic detection device provided in any of the technical solutions, and the ultrasonic detection device is used for detecting the battery device.

[0023] The technical solutions provided by the embodiments of the present application at least have the following beneficial effects:

[0024] Some embodiments of the present application provide an ultrasonic detection device, which comprises an ultrasonic probe, a surrounding wall and a sealing structure, the surrounding wall forms a cavity with an opening, the ultrasonic probe is arranged in the cavity, the cavity is used for accommodating a coupling medium, and the opening is used for covering a component to be detected; the sealing structure is arranged on the surrounding wall and is arranged around the outer periphery of the opening. In the above structure, the coupling medium can be filled in the cavity to immerse the ultrasonic probe and the component to be detected, the ultrasonic probe can use ultrasonic waves propagating in the coupling medium to perform nondestructive testing on the component to be detected, and since the sealing structure can seal the interface between the opening and the component to be detected, the possibility of leakage of the coupling medium from the interface between the opening and the component to be detected is reduced, which not only helps to improve the stability of the detection process, but also makes the coupling medium not easy to leak to affect the surrounding components, and helps to improve the reliability of the use of the ultrasonic detection device.

[0025] The above description is only a summary of the technical solutions of the present application. In order to enable the technical means of the present application to be more clearly understood, the present application can be implemented according to the content of the specification, and in order to enable the above and other purposes, characteristics and advantages of the present application to be more obvious and easy to understand, the following specific embodiments of the present application are described. BRIEF DESCRIPTION OF DRAWINGS

[0026] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The accompanying drawings are included to provide a description of the preferred embodiments and are not meant to limit the present application. Moreover, the same reference numerals in the attached drawings indicate the same or similar components.

[0027] Figure 1 An internal structure diagram of a surrounding wall of an ultrasonic detection device provided by some embodiments of the present application;

[0028] Figure 2 A bottom view of an ultrasonic detection device provided by some embodiments of the present application;

[0029] Figure 3 An internal structure diagram of a part of a surrounding wall of an ultrasonic detection device provided by some embodiments of the present application;

[0030] Figure 4 An internal structure diagram of a part of a surrounding wall of an ultrasonic detection device provided by some embodiments of the present application;

[0031] Figure 5 A structure diagram of an ultrasonic detection device provided by some embodiments of the present application.

[0032] In the drawings:

[0033] 1. An ultrasonic probe;

[0034] 2, surrounding wall; 21, cavity; 22, opening; 23, groove;

[0035] 3, sealing structure; 31, elastic layer; 32, elastic member; 33, communication channel;

[0036] 4, liquid injection mechanism; 41, liquid injection pipe; 411, liquid injection port;

[0037] 5, liquid discharge mechanism; 51, liquid discharge pipe; 512, liquid discharge port; 513, channel;

[0038] 6, wiping mechanism; 61, wiping wheel; 62, elastic connecting member;

[0039] 7, support. DETAILED DESCRIPTION

[0040] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0041] Unless otherwise defined, all technical and scientific terms used in the present application have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs; the terms used in the specification of the present application are only for the purpose of describing the specific embodiments of the present application, and are not intended to limit the present application; the terms "include" and "have" and any variations thereof in the specification and claims of the present application and the above description of drawings are intended to cover non-exclusive inclusion. The terms "first", "second" and the like in the specification and claims of the present application and the above description of drawings are used to distinguish different objects, and are not intended to describe a particular order or primary and secondary relationship.

[0042] In the present application, the phrase "embodiment" means that the specific features, structures or characteristics described in conjunction with the embodiment can be included in at least one embodiment of the present application. The phrase appears at various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment to other embodiments.

[0043] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "attachment" should be understood broadly, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be directly connected, or indirectly connected through an intermediate medium; can be internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0044] The term "and / or" in the present application is only to describe the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B can mean that A exists alone, A and B exist together, and B exists alone. In addition, the character " / " in the present application generally represents that the front and rear associated objects have an "or" relationship.

[0045] In the embodiments of the present application, the same reference signs represent the same components, and for the sake of brevity, the detailed description of the same components is omitted in different embodiments. It should be understood that the thickness, length, width and other dimensions of various components in the embodiments of the present application shown in the drawings, and the overall thickness, length, width and other dimensions of the integrated device are only exemplary and should not constitute any limitation on the present application.

[0046] In the embodiments of the present application, "parallel" not only includes the case of absolute parallel, but also includes the case of approximate parallel which is generally recognized in engineering; at the same time, "perpendicular" not only includes the case of absolute perpendicular, but also includes the case of approximate perpendicular which is generally recognized in engineering. Exemplarily, the included angle between two directions is 85°-9°, which can be considered as perpendicular; the included angle between two directions is °-5°, which can be considered as parallel.

[0047] "Multiple" appearing in the present application means two or more (including two).

[0048] At present, from the development of market situation, the application of battery device is more and more extensive. The battery device is not only applied to energy storage power supply system such as hydroelectric, thermal, wind and solar power station, but also widely used in energy storage container or energy storage cabinet and other energy storage devices, and also used for active peak shaving of power grid to stabilize the disturbance of power grid. With the continuous development of battery device technology, people's quality requirements for battery device are also getting higher and higher.

[0049] In the prior art, welding and gluing processes are often involved in the production process of a battery device. For example, the end plate and the electrode terminal of the battery device are usually connected by welding, and the welding quality directly affects the quality of the battery device. In particular, the welding of the electrode terminal as a channel for current flow is particularly important to the quality of the battery device. In order to ensure the quality and reliability of the battery device, some parts of the battery device need to be detected by a detection device for quality control.

[0050] At present, water immersion ultrasonic detection as a non-destructive testing scheme is applied to the quality control of the battery device, but there is a risk of liquid leakage in the use process, which not only affects the stability of the water immersion ultrasonic detection process, but also easily adheres to the components in the battery device, affecting the reliability of the ultrasonic detection device.

[0051] In order to improve the stability and reliability of the ultrasonic detection device, some embodiments of the present application provide an ultrasonic detection device, which comprises an ultrasonic probe, a surrounding wall and a sealing structure. The surrounding wall forms a cavity with an opening, the ultrasonic probe is arranged in the cavity, the cavity is used to accommodate the coupling medium, and the opening is used to cover the component to be detected. The sealing structure is arranged on the surrounding wall and is arranged around the outer periphery of the opening. In the above structure, the coupling medium can be filled in the cavity to immerse the ultrasonic probe and the component to be detected. The ultrasonic probe can use the ultrasonic wave propagating in the coupling medium to non-destructively detect the component to be detected. Since the sealing structure can seal the interface between the opening and the component to be detected, the possibility of leakage of the coupling medium from the interface between the opening and the component to be detected is reduced, which not only helps to improve the stability of the detection process, but also makes the coupling medium not easy to leak and affect the surrounding components, thereby improving the reliability of the ultrasonic detection device.

[0052] The ultrasonic detection device provided by the embodiments of the present application can be used for non-destructive detection of the battery device, and can also be used for non-destructive detection of the welding part, the gluing part and other parts that need quality control in the vehicle, the ship, the electronic product and other equipment.

[0053] Some embodiments of the present application provide an ultrasonic detection device, which comprises an ultrasonic probe, a surrounding wall and a sealing structure. Figure 1 and Figure 2 The ultrasonic detection device comprises an ultrasonic probe 1, a surrounding wall 2 and a sealing structure 3. The surrounding wall 2 forms a cavity 21 with an opening 22, the ultrasonic probe 1 is arranged in the cavity 21, the cavity 21 is used to accommodate the coupling medium, and the opening 22 is used to cover the component to be detected. The sealing structure 3 is arranged on the surrounding wall 2 and is arranged around the outer periphery of the opening 22. The sealing structure 3 is used to seal the component to be detected.

[0054] The ultrasonic probe 1 can be a device for transmitting and receiving ultrasonic waves in the ultrasonic detection process. The surrounding wall 2 can be a device for containing the coupling medium in the ultrasonic detection device, which serves as a container for containing the coupling medium and can be placed on the component to be detected to immerse the component to be detected in the contained coupling medium.

[0055] The cavity 21 can be a cavity structure in the surrounding wall 2 for containing the coupling medium. By providing the cavity 21 with an opening 22, the coupling medium in the cavity 21 can immerse the component to be detected when the opening 22 is placed on the component to be detected.

[0056] The coupling medium can be a liquid medium for transmitting the ultrasonic waves emitted by the ultrasonic probe 1 in the ultrasonic detection device, which makes the ultrasonic probe 1 and the component to be detected not have to be in direct contact, not only stabilizes the reception and transmission of ultrasonic waves by the ultrasonic probe 1, but also improves the accuracy of ultrasonic detection, and enables the ultrasonic detection device to scan curved or irregular surfaces.

[0057] By arranging the ultrasonic probe 1 in the cavity 21, the coupling medium contained in the cavity 21 can immerse the ultrasonic probe 1, so that the component to be detected and the ultrasonic probe 1 can be immersed in the coupling medium when the opening 22 is placed on the component to be detected, and the ultrasonic waves can be transmitted smoothly between the ultrasonic probe 1 and the component to be detected. Exemplarily, the ultrasonic probe 1 can be connected to the surrounding wall 2 by penetrating bolts.

[0058] The sealing structure 3 can be a structure for sealing the part of the component to be detected covered by the opening 22, which is used to reduce the possibility of leakage of the coupling medium outward at the opening 22. By arranging the sealing structure 3 on the surrounding wall 2 and around the outer periphery of the opening 22, the sealing structure 3 can seal the contact interface between the opening 22 and the component to be detected when it is in contact with the component to be detected, reducing the possibility of leakage of the coupling medium from the interface between the opening 22 and the component to be detected.

[0059] Exemplarily, the sealing structure 3 can be an elastic structure, so that the sealing structure 3 can be elastically deformed when it is in contact with the component to be detected, and the elastic restoring force of the sealing structure 3 itself can be used to maintain the contact with the component to be detected when the sealing structure 3 is in contact with the component to be detected, which is conducive to improving the sealing effect of the sealing structure 3 on the contact interface between the opening 22 and the component to be detected.

[0060] In the above structure, the coupling medium capable of filling the cavity 21 can fill the ultrasonic probe 1 and the component to be detected, and the ultrasonic probe 1 can use the ultrasonic wave propagating in the coupling medium to perform non-destructive testing on the component to be detected. Since the sealing structure 3 can seal the interface between the opening 22 and the component to be detected, the possibility of leakage of the coupling medium from the interface between the opening 22 and the component to be detected is reduced, which not only helps to improve the stability of the detection process, but also makes the coupling medium not easy to leak and affect the surrounding components, thereby improving the reliability of the ultrasonic detection device.

[0061] In some embodiments, referring to Figure 2 , the surrounding wall 2 is recessed inwardly towards the surface of the component to be detected to form a groove 23, the groove 23 is arranged around the outer periphery of the opening 22, and the sealing structure 3 is connected to the groove 23 and at least part of the sealing structure 3 extends out of the groove 23.

[0062] The groove 23 can be a groove structure for arranging the sealing structure 3. By recessing the surrounding wall 2 inwardly towards the surface of the component to be detected, the groove 23 is formed on the surrounding wall 2, and by connecting the sealing structure 3 to the groove 23, the sealing structure 3 can be positioned on the surrounding wall 2, which not only facilitates the connection of the sealing structure 3 on the surrounding wall 2, but also makes the sealing structure 3 not easy to fall off during use of the ultrasonic detection device.

[0063] By arranging the groove 23 around the outer periphery of the opening 22, the sealing structure 3 connected to the groove 23 is arranged around the opening 22, which can reduce the possibility of leakage of the coupling medium outward from the opening 22.

[0064] The sealing structure 3 is connected to the groove 23 and at least part of the sealing structure 3 extends out of the groove 23, which can mean that part of the sealing structure 3 is located in the groove 23 and connected to the inner wall of the groove 23, and part of the sealing structure 3 extends out of the groove 23. The sealing structure 3 extending out of the groove 23 is used to abut against the component to be detected, so that the sealing structure 3 can seal the gap between the opening 22 and the component to be detected.

[0065] In some embodiments, referring to Figure 3 , the sealing structure 3 comprises an elastic layer 31, the elastic layer 31 is sealingly connected to the inner wall of the groove 23, the elastic layer 31 and at least part of the cavity of the groove 23 form the sealing structure 3, and the at least part of the cavity of the groove 23 is filled with buffer gas.

[0066] The elastic layer 31 can be a film layer structure with elasticity. The elastic layer 31 is sealingly connected to the inner wall of the groove 23, and can be that the edge of the elastic layer 31 is sealingly connected to the inner wall surface of the groove 23. By sealingly connecting the elastic layer 31 to the inner wall of the groove 23, at least part of the cavity surrounded by the elastic layer 31 and the inner wall of the groove 23 forms a sealed cavity, so that the elastic layer 31 and at least part of the cavity of the groove 23 can form a sealed structure 3 in which the elastic layer 31 protrudes from the groove 23, and the elastic layer 31 of the sealed structure 3 can abut against the component to be detected.

[0067] The at least part of the cavity of the groove 23 is filled with buffer gas, which means that the buffer gas is filled in the sealed cavity surrounded by the elastic layer 31 and the inner wall of the groove 23, so that the elastic layer 31 protruding from the groove 23 can be elastically deformed.

[0068] The buffer gas can be air, inert gas or other gas that can be easily compressed, which enables the sealed structure 3 to be compressed to be elastically deformed.

[0069] In some embodiments, referring to Figure 4 The sealed structure 3 includes an elastic member 32, and the elastic member 32 is connected to the groove 23 and at least part of the elastic member 32 protrudes from the groove 23.

[0070] The elastic member 32 can be a device capable of being elastically deformed. The elastic member 32 is connected to the groove 23 and at least part of the elastic member 32 protrudes from the groove 23, which means that part of the elastic member 32 is located in the groove 23, and another part of the elastic member 32 protrudes from the groove 23 to abut against the component to be detected.

[0071] Exemplarily, the elastic member 32 can be an elastic rubber ring arranged on the outer periphery of the opening 22, which can be clamped and deformed by the surrounding wall 2 and the component to be detected, and seal the interface between the surrounding wall 2 and the component to be detected. In other embodiments, the elastic member 32 can also be an air bag or an air cushion, and those skilled in the art can select the type of the elastic member 32 according to the actual situation, so that the elastic member 32 can seal the interface between the surrounding wall 2 and the component to be detected well.

[0072] In some embodiments, the ultrasonic detection device further includes a pressure sensor, and a communication channel 33 is provided on the surrounding wall 2, which communicates the cavity of the groove 23 filled with buffer gas and the pressure sensor.

[0073] The pressure sensor can be a device for measuring the air pressure of the buffer gas in the cavity of the recess 23. By measuring the air pressure of the buffer gas in the cavity of the recess 23 by using the pressure sensor, the operator can timely learn the air pressure of the buffer gas in the cavity of the recess 23, so that the operator can timely judge the pressing degree of the ultrasonic detection device to the component to be detected, and further judge whether the sealing structure 3 can well seal the interface between the opening 22 and the component to be detected, which is beneficial to reducing the possibility of leakage of the coupling medium from the interface between the opening 22 and the component to be detected.

[0074] Exemplarily, when the air pressure of the buffer gas in the cavity of the recess 23 reaches a preset value, it is determined that the opening 22 of the ultrasonic detection device is well pressed to the component to be detected, and it is determined that the sealing structure 3 can well seal the interface between the opening 22 and the component to be detected.

[0075] The communication channel 33 can be a channel 513 for communicating the recess 23 cavity of the buffer gas with the pressure sensor, which is used to guide the buffer gas in the cavity of the recess 23 to the pressure sensor, so that the pressure sensor measures the air pressure of the buffer gas in the cavity of the recess 23.

[0076] Exemplarily, the communication channel 33 can be formed by a gas conveying pipe connected to the surrounding wall 2, and the two ends of the gas conveying pipe are respectively communicated with the recess 23 cavity and the pressure sensor; the communication channel 33 can also be formed by a communication hole formed in the wall body of the surrounding wall 2, and the two ends of the communication hole are respectively communicated with the recess 23 cavity and the pressure sensor.

[0077] In some embodiments, the ultrasonic detection device further comprises a liquid injection mechanism 4 and a controller, the liquid injection mechanism 4 is communicated with the container cavity 21, and the controller is electrically connected with the liquid injection mechanism 4 and the pressure sensor, and the controller is configured to control the liquid injection mechanism 4 to inject the coupling medium into the container cavity 21 when the pressure detected by the pressure sensor is greater than a preset value.

[0078] The liquid injection mechanism 4 can be a mechanism for injecting the coupling medium into the container cavity 21. The liquid injection mechanism 4 is communicated with the container cavity 21, which can be that the liquid injection mechanism 4 comprises a liquid storage tank storing the coupling medium, a liquid injection pump communicated with the liquid storage tank, and a liquid injection pipe 41, the liquid injection pump is communicated with the container cavity 21 through the liquid injection pipe 41, so that the liquid injection mechanism 4 can inject the coupling medium into the container cavity 21.

[0079] The controller is electrically connected with the liquid injection mechanism 4 and the pressure sensor, which can mean that the controller is electrically connected with the liquid injection pump of the liquid injection mechanism 4 and the pressure sensor, so that the controller can receive the air pressure information of the recess 23 cavity measured by the pressure sensor and can control the start and stop of the liquid injection mechanism 4.

[0080] The controller is configured to control the liquid injection mechanism 4 to inject the coupling medium into the container cavity 21 when the pressure detected by the pressure sensor is greater than the preset value. This can mean that when the controller receives the pressure detected by the pressure sensor and the pressure is greater than the preset value, the controller controls the liquid injection mechanism 4 to start, and the liquid injection mechanism 4 injects the coupling medium into the container cavity 21 until the coupling medium immerses the ultrasonic probe 1. By configuring the controller to control the liquid injection mechanism 4 to inject the coupling medium into the container cavity 21 when the pressure detected by the pressure sensor is greater than the preset value, when the ultrasonic detection device detects that the pressure detected by the pressure sensor is greater than the preset value, the controller determines that the opening 22 and the component to be detected are well sealed, and at this time, injecting the coupling medium into the container cavity 21 helps to reduce the occurrence of the case where the coupling medium is injected when the opening 22 and the component to be detected are not well sealed.

[0081] In some embodiments, the ultrasonic detection device further comprises a liquid discharge mechanism 5 in communication with the container cavity 21. The liquid discharge mechanism 5 is in communication with the container cavity 21, and the controller is electrically connected with the liquid discharge mechanism 5 and the ultrasonic probe 1. The controller is configured to control the liquid discharge mechanism 5 to discharge the coupling medium in the container cavity 21 when the ultrasonic probe 1 stops emitting ultrasonic waves.

[0082] The liquid discharge mechanism 5 can be a mechanism for discharging the coupling medium in the container cavity 21 outward. After the ultrasonic detection device performs water immersion ultrasonic detection on the component to be detected, the coupling medium is discharged from the container cavity 21, so that after the ultrasonic detection device is removed from the component to be detected, the coupling medium is less likely to flow down.

[0083] The liquid discharge mechanism 5 is in communication with the container cavity 21. The liquid discharge mechanism 5 can include a liquid discharge pump and a liquid discharge pipe 51. The liquid discharge pump is in communication with the liquid storage tank, and the liquid discharge pump is in communication with the container cavity 21 through the liquid discharge pipe 51, so that the liquid discharge mechanism 5 can discharge the coupling medium from the container cavity 21.

[0084] The controller is electrically connected with the liquid discharge mechanism 5 and the ultrasonic probe 1. This can mean that the controller is electrically connected with the liquid discharge pump of the liquid discharge mechanism 5 and the ultrasonic probe 1, so that the controller can control whether the ultrasonic probe 1 works and can control the start and stop of the liquid discharge mechanism 5.

[0085] The controller is configured to control the liquid discharge mechanism 5 to discharge the coupling medium in the container cavity 21 when the ultrasonic probe 1 stops emitting ultrasonic waves. This can mean that after the ultrasonic probe 1 finishes detecting the component to be detected and stops emitting ultrasonic waves, the controller controls the liquid discharge pump in the liquid discharge mechanism 5 to start and discharge the coupling medium in the container cavity 21 outward, which helps to improve the automation of the ultrasonic detection device.

[0086] Exemplarily, the stopping of the liquid discharging by the liquid discharging mechanism 5 can be determined according to the time length of the liquid discharging under the control of the controller, or can be determined according to the flow of the coupling medium discharged by the liquid discharging mechanism 5 under the control of the controller, so that the liquid discharging mechanism 5 can stop after the coupling medium in the container cavity 21 is completely discharged.

[0087] In some embodiments, the liquid discharging mechanism 5 comprises a liquid discharging pipe 51, the liquid discharging pipe 51 is provided with a liquid discharging port 512 extending into the container cavity 21, and the orientation of the liquid discharging port 512 is arranged along the orientation of the opening 22 and the liquid discharging port 512 is flush with the opening 22.

[0088] The liquid discharging pipe 51 can be a pipe for discharging the coupling medium in the container cavity 21 outward. The liquid discharging port 512 can be a port of the liquid discharging pipe 51 extending into the container cavity 21, which is used to make the coupling medium in the container cavity 21 enter the liquid discharging pipe 51 so as to discharge the container cavity 21.

[0089] The orientation of the liquid discharging port 512 is arranged along the orientation of the opening 22, which can mean that the orientation of the liquid discharging port 512 is arranged in the same direction as the orientation of the opening 22. The liquid discharging port 512 is flush with the opening 22, which can mean that the liquid discharging port 512 and the opening 22 are located in the same plane, so that the liquid discharging port 512 can be relatively close to the component to be detected, so that the liquid discharging pipe 51 can more completely discharge the coupling medium on the component to be detected.

[0090] Exemplarily, the opening 22 can be above the component to be detected, and the coupling medium in the container cavity 21 is immersed above the component to be detected. By arranging the orientation of the liquid discharging port 512 along the orientation of the opening 22 and making the liquid discharging port 512 flush with the opening 22, the liquid discharging port 512 can extend to the lowest part of the container cavity 21, which facilitates more complete discharge of the coupling medium in the container cavity 21.

[0091] In some embodiments, the pipe wall of the liquid discharging pipe 51 is provided with a channel 513 penetrating the pipe wall along the radial direction of the liquid discharging pipe 51, and the channel 513 is in communication with the liquid discharging port 512.

[0092] The channel 513 can be a notch provided at the liquid discharging port 512, which penetrates the pipe wall along the radial direction of the liquid discharging pipe 51 and is in communication with the end face of the liquid discharging port 512, which is used to form an aperture between the liquid discharging port 512 and the component to be detected when the liquid discharging pipe 51 sucks the coupling medium outward, which reduces the possibility of vacuum effect occurring between the liquid discharging port 512 and the component to be detected without a gap, and facilitates smooth liquid discharging.

[0093] In some embodiments, the liquid injecting mechanism 4 comprises a liquid injecting pipe 41, and the liquid injecting pipe 41 is provided with a liquid injecting port 411, and the liquid injecting port 411 is arranged in a staggered manner with the liquid discharging port 512.

[0094] The liquid injection port 411 can be a port of the liquid injection tube 41 extending into the cavity 21, which is used to inject the coupling medium into the cavity 21. The staggered arrangement of the liquid injection port 411 and the liquid discharge port 512 can be that the directions of the liquid injection port 411 and the liquid discharge port 512 are staggered with respect to each other, so that the liquid injection port 411 and the liquid discharge port 512 are not arranged oppositely, and the portions of the liquid injection tube 41 and the liquid discharge tube 51 in the cavity 21 are arranged conveniently and are not prone to interference.

[0095] Exemplarily, when the opening 22 covers the component to be detected, the liquid discharge port 512 of the liquid discharge tube 51 is located at the lowest part of the cavity 21 flush with the opening 22, and the liquid injection port 411 of the liquid injection tube 41 is located above the liquid discharge port 512 of the liquid discharge tube 51.

[0096] In some embodiments, the liquid discharge tube 51 is configured to be retractable along the direction of the opening 22.

[0097] By configuring the liquid discharge tube 51 to be retractable along the direction of the opening 22, the liquid discharge port 512 of the liquid discharge tube 51 can be moved along the direction of the opening 22, so that the liquid discharge port 512 of the liquid discharge tube 51 can be kept in close contact with the component to be detected, and the coupling medium on the component to be detected can be removed more cleanly by the liquid discharge port 512.

[0098] In some embodiments, with reference to 2 and Figure 5 The ultrasonic detection device further comprises a wiping mechanism 6 for wiping the coupling medium on the component to be detected.

[0099] The wiping mechanism 6 can be a mechanism for wiping the coupling medium remaining on the component to be detected, which can reduce the coupling medium remaining on the component to be detected and facilitate the subsequent use of the component to be detected.

[0100] In some embodiments, the wiping mechanism 6 further comprises a wiping wheel 61 and an elastic connecting member 62, and the wiping wheel 61 is connected to the surrounding wall 2 through the elastic connecting member 62; along the direction of the opening 22, the wiping wheel 61 protrudes from the opening 22.

[0101] The wiping wheel 61 can be a wheel-like structure in the wiping mechanism 6 for directly contacting the component to be detected to wipe the component to be detected. Exemplarily, the wiping wheel 61 comprises a moisture-absorbing paper wheel, so that the wiping wheel 61 can wipe and absorb the coupling medium remaining on the component to be detected well, and the coupling medium remaining on the component to be detected is reduced.

[0102] The elastic connecting member 62 can be a device capable of being elastically deformed in the direction of the opening 22. The wiping wheel 61 is connected to the surrounding wall 2 through the elastic connecting member 62, and protrudes from the opening 22 in the direction of the opening 22, so that after the wiping wheel 61 abuts against the surface of the component to be detected, the elastic connecting member 62 can provide a force to the wiping wheel 61 through elastic deformation, so that the wiping wheel 61 tightly abuts against the component to be detected.

[0103] In some embodiments, the ultrasonic detection device further comprises a plugging mechanism for plugging the hole on the component to be detected.

[0104] The plugging mechanism can be a mechanism for plugging the hole on the component to be detected in the ultrasonic detection device, which plugs the hole on the component to be detected, so that when the opening 22 covers the component to be detected, the coupling medium in the cavity 21 is not easy to leak from the hole.

[0105] The hole on the component to be detected can be an observation hole or a stress release hole on the component to be detected (such as a adapter plate, a current collecting disc, etc.).

[0106] For example, the plugging mechanism can use sealant to plug the hole on the component to be detected, or can use a tapered plug to plug the hole on the component to be detected, or can use a rubber pad to plug the hole on the component to be detected.

[0107] In some embodiments, the plugging mechanism comprises a glue applying mechanism, and the glue applying mechanism is provided with sealant, and the glue applying mechanism can inject the sealant into the hole.

[0108] The glue applying mechanism is provided with sealant, which can be a mechanism for filling sealant into the hole. The glue applying mechanism can inject the sealant into the hole, which can be that the glue applying mechanism comprises a glue injector provided with sealant, and the glue applying mechanism can inject the sealant into the hole by using the glue injector, so that the hole is plugged.

[0109] In some embodiments, the ultrasonic detection device further comprises a support 7, and the surrounding wall 2 is movably connected to the support 7 in the direction of the opening 22.

[0110] The support 7 can be a seat structure for carrying the surrounding wall 2, and the surrounding wall 2 is connected to the support 7, so that the load of each component provided on the surrounding wall 2 can be transmitted to the support 7.

[0111] By movably connecting the surrounding wall 2 to the support 7 in the direction of the opening 22, the surrounding wall 2 can be moved in the direction of the opening 22 to abut against and press the component to be detected, so that the surrounding wall 2 can be moved on the support 7 to realize the abutment and disengagement of the component to be detected, so that the detection of the component to be detected by the ultrasonic detection device is convenient.

[0112] Exemplarily, the surrounding wall 2 can be connected to the support 7 through a sliding rail, and a driver is fixed on the support 7, and an output end of the driver is connected to the surrounding wall 2, so that the driver can drive the surrounding wall 2 to move towards the opening 22.

[0113] Some embodiments of the present application also provide a battery device production system, which comprises the ultrasonic detection device provided in the technical solutions above, and the ultrasonic detection device is used for detecting the battery device.

[0114] The ultrasonic detection device provided in the technical solutions above is used for detecting the battery device, which is beneficial to improving the stability and reliability of the detection of the battery device.

[0115] As shown in the ultrasonic detection device provided in some embodiments of the present application, Figure 1 the ultrasonic detection device comprises an ultrasonic probe 1, a surrounding wall 2, a sealing structure 3, a pressure sensor, a liquid injection mechanism 4, a liquid discharge mechanism 5 and a wiping mechanism 6, the ultrasonic probe 1 is arranged in a cavity 21, an opening 22 of the cavity 21 is used for covering a component to be detected, an elastic layer 31 is sealingly connected to an inner wall of a groove 23 and a part of a cavity of the groove 23 to form the sealing structure 3, and a wall body of the surrounding wall 2 is formed with a communication channel 33 which communicates the pressure sensor and the cavity of the groove 23. When the pressure detected by the pressure sensor is greater than a preset value, the liquid injection mechanism 4 injects a coupling medium into the cavity 21, and when the ultrasonic probe 1 stops emitting ultrasonic waves, the liquid discharge mechanism 5 discharges the coupling medium in the cavity 21. A liquid discharge pipe 51 of the liquid discharge mechanism 5 is provided with a liquid discharge port 512 which extends into the cavity 21, and the liquid discharge port 512 is arranged along the direction of the opening 22. A pipe wall of the liquid discharge pipe 51 is provided with a channel 513 which penetrates the pipe wall along the radial direction of the liquid discharge pipe 51, and the channel 513 communicates with the liquid discharge port 512.

[0116] In the above structure, the cavity 21 can be filled with a coupling medium which immerses the ultrasonic probe 1 and the component to be detected, the ultrasonic probe 1 can use the ultrasonic waves propagating in the coupling medium to non-destructively detect the component to be detected, and since the sealing structure 3 can seal the interface between the opening 22 and the component to be detected, the possibility of leakage of the coupling medium from the interface between the opening 22 and the component to be detected is reduced, which is not only beneficial to improving the stability of the detection process, but also makes the coupling medium not easy to leak and affect the surrounding components, and is beneficial to improving the reliability of the use of the ultrasonic detection device.

[0117] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than limit them. Although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that the technical solutions recorded in the foregoing embodiments can be modified, or some or all of the technical features can be replaced equivalently. Such modifications or replacements do not change the essence of the corresponding technical solutions, which should be covered in the scope of the present application. In particular, the technical features mentioned in each embodiment can be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An ultrasonic testing apparatus characterized by comprising: The application relates to an ultrasonic detection device. The device comprises: an ultrasonic probe; a surrounding wall forming a cavity with an opening, the ultrasonic probe being arranged in the cavity, the cavity being used for containing a coupling medium, and the opening being used for covering a component to be detected; 2. The ultrasonic testing apparatus according to claim 1, characterized by a sealing structure arranged on the surrounding wall, the sealing structure being arranged around the outer periphery of the opening, and the sealing structure being used for sealing against the component to be detected.

3. The ultrasonic testing apparatus according to claim 2, characterized by The surface of the surrounding wall facing the component to be detected is recessed inward to form a groove, the groove being arranged around the outer periphery of the opening, the sealing structure being connected to the groove, and at least part of the sealing structure extending out of the groove.

4. The ultrasonic testing apparatus according to claim 2, characterized by The sealing structure comprises an elastic layer, the elastic layer being sealingly connected to the inner wall of the groove, the elastic layer and at least part of the cavity of the groove forming the sealing structure, and at least part of the cavity of the groove being filled with buffer gas.

5. The ultrasonic testing apparatus according to claim 3, characterized by The sealing structure comprises an elastic member, the elastic member being connected to the groove, and at least part of the elastic member extending out of the groove.

6. The ultrasonic testing apparatus according to claim 5, characterized by The ultrasonic detection device further comprises a pressure sensor, and a communication channel is arranged on the surrounding wall, the communication channel being in communication with the groove cavity filled with the buffer gas and the pressure sensor.

7. The ultrasonic testing apparatus according to claim 6, characterized by The ultrasonic detection device further comprises a liquid injection mechanism and a controller, the liquid injection mechanism being in communication with the cavity, and the controller being electrically connected with the liquid injection mechanism and the pressure sensor, and the controller being configured to control the liquid injection mechanism to inject the coupling medium into the cavity when the pressure detected by the pressure sensor is greater than a preset value.

8. The ultrasonic testing apparatus according to claim 7, characterized by The ultrasonic detection device further comprises a liquid discharge mechanism in communication with the cavity, the liquid discharge mechanism being in communication with the cavity, and the controller being electrically connected with the liquid discharge mechanism and the ultrasonic probe, and the controller being configured to control the liquid discharge mechanism to discharge the coupling medium in the cavity when the ultrasonic probe stops emitting ultrasonic waves.

9. The ultrasonic testing apparatus according to claim 8, characterized by The liquid discharge mechanism comprises a liquid discharge pipe, the liquid discharge pipe being provided with a liquid discharge port extending into the cavity, the liquid discharge port being arranged along the direction of the opening, and the liquid discharge port being flush with the opening.

10. The ultrasonic testing apparatus of claim 8, wherein, The pipe wall of the liquid discharge pipe is provided with a channel penetrating through the pipe wall along the radial direction of the liquid discharge pipe, and the channel is in communication with the liquid discharge port.

11. The ultrasonic testing apparatus according to any one of claims 8 to 10, characterized in that, The liquid injection mechanism comprises a liquid injection pipe, the liquid injection pipe being provided with a liquid injection port, and the liquid injection port being arranged in a staggered manner with the liquid discharge port.

12. The ultrasonic testing apparatus according to any one of claims 1 to 10, characterized by The liquid discharge pipe is configured to be telescopic along the direction of the opening.

13. The ultrasonic testing apparatus of claim 12, wherein, The ultrasonic detection device further comprises a wiping mechanism, the wiping mechanism being used for wiping the coupling medium on the component to be detected.

14. The ultrasonic testing apparatus according to any one of claims 1 to 10, characterized by The wiping mechanism further comprises a wiping wheel and an elastic connecting member, the wiping wheel being connected to the surrounding wall through the elastic connecting member, and the wiping wheel protruding out of the opening along the direction of the opening.

15. The ultrasonic testing apparatus of claim 14, wherein, The ultrasonic detection device further comprises a plugging mechanism, the plugging mechanism being used for plugging a hole on the component to be detected.

16. The ultrasonic testing apparatus according to any one of claims 1 to 10, characterized by The plugging mechanism comprises a glue applying mechanism, the glue applying mechanism being provided with sealing glue, and the glue applying mechanism being capable of injecting the sealing glue into the hole. The ultrasonic detection device further comprises a support, and the surrounding wall is movably connected to the support along the direction of the opening.

17. A battery device production system characterized by comprising: An ultrasonic testing device as claimed in any one of claims 1-16, for testing a battery device.

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