Automatic two-component resin inspection device, automatic two-component resin inspection system including the same, and automatic two-component resin inspection method

Abstract

The present invention relates to an automatic two-component resin inspection device that can automatically determine in real time whether a two-component resin injected into a battery module is normal, and an automatic two-component resin inspection device system and method including the same. An automatic two-component resin inspection device according to an embodiment of the present invention includes a housing with an open bottom, an illumination unit that irradiates light onto the open bottom of the housing, a camera unit that photographs the two-component resin injected into a battery module located at the open bottom of the housing to obtain a resin image, and a determination unit that determines whether the two-component resin injected into the battery module is normal based on color information of the resin image obtained by the camera unit.

Description

[Technical field]

[0001] This application claims the benefit of priority to Korean Patent Application No. 10-2021-0122600 filed on September 14, 2021, and Korean Patent Application No. 10-2022-0111370 filed on September 2, 2022, and all contents disclosed in the documents of said Korean patent applications are incorporated herein by reference.

[0002] The present invention relates to an automatic two-component resin inspection device, an automatic two-component resin inspection system including the same, and an automatic two-component resin inspection method. [Background technology]

[0003] Currently, commercially available secondary batteries include nickel-cadmium batteries, nickel-metal hydride batteries, nickel-zinc batteries, and lithium secondary batteries. Among these, lithium secondary batteries are attracting attention because they have the advantages of being freely chargeable and dischargeable, having a very low self-discharge rate, and having a high energy density, as they have almost no memory effect compared to nickel-based secondary batteries.

[0004] Such lithium secondary batteries mainly use lithium-based oxides and carbon materials as positive and negative active materials, respectively. Lithium secondary batteries include an electrode assembly in which a positive electrode plate and a negative electrode plate coated with such positive and negative active materials are arranged with a separator between them, and an exterior material that seals and houses the electrode assembly together with an electrolyte. Depending on the shape of the exterior material, the battery can be classified into a can-type secondary battery and a pouch-type secondary battery. Such a single secondary battery can be called a battery cell.

[0005] Recently, secondary batteries are widely used not only in small devices such as portable electronic devices, but also in medium-sized and large devices such as automobiles and power storage devices. When used in such medium-sized and large devices, a battery module in which a number of battery cells are electrically connected to each other may be used to increase capacity and output, or a battery pack in which a plurality of such battery modules are connected may be used.

[0006] As described above, one method of constructing a battery module or a battery pack is to use an adhesive material (resin, resin composition) capable of fixing a plurality of battery cells inside a battery module. At this time, the adhesive material can be injected into the battery module through an injection hole formed on the surface of the battery module.

[0007] Specifically, such adhesive material may be a two-part resin containing a base resin and a hardener, and the two-part resin filled in this way can appropriately absorb heat generated inside the battery to prevent a sudden temperature change in the battery while dissipating the heat to the outside. For the heat dissipation and resin hardening properties of such two-part resin, the blending state of the base resin and the hardener, which are the materials that make up the two-part resin, is important.

[0008] A resin injection device for injecting a two-component resin into a battery module will be described with reference to Figures 1 and 2. Figure 1 is a front view showing a conventional resin injection device, and Figure 2 is an enlarged view showing the inside of part A in Figure 1.

[0009] With reference to FIGS. 1 and 2, a resin injection device 10 includes a base agent supply section 11, a hardener supply section 12, a blending section 13, an injection section 14, and a pressure sensor 15.

[0010] The base agent supplying section 11 supplies the base agent to the blending section 13, and the hardener supplying section 12 supplies the hardener to the blending section 13. The base agent supplying section 11 and the hardener supplying section 12 supply the base agent and the hardener to the blending section 13 through individual valves V1 and V2, respectively.

[0011] The blending unit 13 includes a mixer, and mixes and blends the base agent and the hardener supplied through the base agent supply unit 11 and the hardener supply unit 12. The injection unit 14 injects the blended two-component resin into the battery module.

[0012] The pressure sensor 15 measures the pressure inside the valve that occurs during the process of supplying the base resin and hardener. The measured pressure value is used to check whether the mixing process is normal or defective. After that, when the two-component resin hardens, the worker visually checks the color to check whether it is normal or defective.

[0013] Such conventional techniques have a problem in that they cannot be dealt with quickly when an error occurs in the measured pressure value due to contamination or failure of the pressure sensor 15. In addition, there is a problem in that there is always a possibility of misjudgment due to the work environment such as long-term inspection or poor lighting when an operator manually judges the pressure value visually. Summary of the Invention [Problem to be solved by the invention]

[0014] The present invention aims to provide an automatic two-component resin inspection device that can automatically determine in real time whether or not two-component resin injected into a battery module is normal, and an automatic two-component resin inspection device system and automatic two-component resin inspection method including the same. [Means for solving the problem]

[0015] An automatic two-component resin inspection device according to an embodiment of the present invention includes: The battery module includes a housing having an open lower portion, an illumination unit that irradiates the open lower portion of the housing with light, a camera unit that photographs the two-component resin injected into the battery module located in the open lower portion of the housing to obtain a resin image, and a determination unit that determines whether the two-component resin injected into the battery module is normal or not based on color information of the resin image obtained by the camera unit.

[0016] The two-component resin automatic inspection device according to the embodiment of the present invention may further include a database unit storing color information according to a blend ratio of the two-component resin.

[0017] In the two-component resin automatic inspection device according to the embodiment of the present invention, the lighting unit is composed of a plurality of LEDs, and the plurality of LEDs may be evenly installed on both sides of the lower part of the upper surface of the housing.

[0018] In the two-component resin automatic inspection device according to the embodiment of the present invention, the camera unit may be a machine vision camera, and the determination unit may be an image processor embodied in the machine vision camera.

[0019] An automatic inspection system for two-component resin according to an embodiment of the present invention includes: The system includes a resin injection device which injects a two-component resin into a battery module, and an automatic two-component resin inspection device which is installed behind the resin injection device, photographs the two-component resin injected into the battery module to obtain a resin image, and determines whether the two-component resin injected into the battery module is normal or not based on color information of the resin image.

[0020] In the two-component resin automatic inspection system according to an embodiment of the present invention, the two-component resin automatic inspection device may include a housing with an open lower portion, a lighting unit that irradiates light onto the open lower portion of the housing, a camera unit that photographs the two-component resin injected into a battery module located at the open lower portion of the housing to obtain a resin image, and a determination unit that determines whether the two-component resin injected into the battery module is normal or not based on color information of the resin image obtained by the camera unit.

[0021] In an automatic two-component resin inspection system according to an embodiment of the present invention, the resin injection device includes a pressure sensor that measures a pressure value inside a valve generated during the process of supplying a base agent and a hardener, and the judgment unit can determine that the blending state of the two-component resin is normal if the normality judged based on the pressure value and the normality judged based on the color information of the resin image are consistent with each other.

[0022] In an embodiment of the two-component resin automatic inspection system according to the present invention, the resin injection device includes a pressure sensor that measures a pressure value inside a valve generated during the supply of a base agent and a hardener, and the judgment unit can determine that an abnormality has occurred in at least one of the pressure sensor, the lighting unit, and the camera unit and generate alarm information if the normality judged based on the pressure value does not match the normality judged based on the color information of the resin image.

[0023] A method for automatically inspecting a two-component resin according to an embodiment of the present invention includes: The method includes a two-component resin injection step in which a resin injection device injects a two-component resin produced by mixing a base agent and a hardener into a battery module, a resin image acquisition step in which a camera unit photographs the two-component resin injected into the battery module to acquire a resin image, and a normality determination step in which a determination unit determines whether the two-component resin injected into the battery module is normal or not based on color information of the resin image.

[0024] In the two-component resin automatic inspection method according to an embodiment of the present invention, after the two-component resin injection step, a pressure value acquisition step may be further included in which a pressure sensor of the resin injection device measures and acquires a pressure value in a valve generated during a process of supplying a base resin and a hardener.

[0025] In the automatic two-component resin inspection method according to an embodiment of the present invention, the normality determining step may determine that the blending state of the two-component resin is normal if the normality determined based on the pressure value and the normality determined based on the color information of the resin image are consistent with each other.

[0026] In the two-component resin automatic inspection method according to an embodiment of the present invention, the normality determining step may generate alarm information if the normality determined based on the pressure value and the normality determined based on the color information of the resin image do not match each other.

[0027] Further details of the implementation of various aspects of the present invention are included in the following detailed description. Effect of the Invention

[0028] According to an embodiment of the present invention, it is possible to automatically determine in real time whether the two-component resin injected into the battery module is normal or not immediately after injection, thereby preventing the occurrence of mass defects. [Brief description of the drawings]

[0029] [Figure 1] FIG. 1 is a front view showing a resin injection device of the prior art. [Diagram 2] FIG. 2 is an enlarged view showing the inside of part A in FIG. [Diagram 3] 1 is a perspective view showing an automatic two-component resin inspection device according to an embodiment of the present invention. [Figure 4] FIG. 2 is a diagram showing the inside of a housing of an automatic two-component resin inspection device according to one embodiment of the present invention. [Diagram 5] 1 is a diagram showing an automatic two-component resin inspection device according to an embodiment of the present invention viewed from below toward above. [Figure 6] 1 is a conceptual diagram showing an automatic two-component resin inspection system according to one embodiment of the present invention. [Figure 7] 1 is a flowchart illustrating an automatic two-component resin inspection method according to an embodiment of the present invention. [Figure 8] 10 is a flowchart showing an automatic inspection method for a two-component resin according to another embodiment of the present invention. [Figure 9] FIG. 2 is a diagram showing a computing device (determining unit) for performing automated two-component resin inspection according to an embodiment of the present invention. [Figure 10] 1 shows hue information according to the blending ratio of a two-component resin according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0030] The present invention can be modified in various ways and can have various embodiments, and therefore, a specific embodiment will be described in detail. However, this is not intended to limit the present invention to the specific embodiment, and it should be understood that the present invention includes all modifications, equivalents, and alternatives within the spirit and technical scope of the present invention.

[0031] The terms used in the present invention are merely used to describe certain embodiments and are not intended to limit the present invention. A singular expression includes a plural expression unless the context clearly indicates otherwise. In the present invention, the terms "include" or "have" are intended to specify the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, and should be understood not to preclude the presence or additional possibility of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

[0032] Hereinafter, an automatic two-component resin inspection device, an automatic two-component resin inspection device system including the same, and an automatic two-component resin inspection method according to an embodiment of the present invention will be described with reference to the drawings.

[0033] Figure 3 is an oblique view showing a two-component resin automatic inspection device according to one embodiment of the present invention, Figure 4 is a diagram showing the inside of the housing of the two-component resin automatic inspection device according to one embodiment of the present invention, and Figure 5 is a diagram showing the two-component resin automatic inspection device according to one embodiment of the present invention viewed from below to above.

[0034] 3 to 5, an automatic two-component resin inspection device 100 according to an embodiment of the present invention includes a housing 110, a lighting unit 120, a camera unit 130, and an evaluation unit 140. Optionally, a support stand 150 may be further included.

[0035] The housing 110 blocks external light so that the illumination emitted from the illumination unit 120 can maintain a constant brightness. The housing 110 may be formed in various shapes such as a polyhedron shape, a cylindrical shape, etc. In the drawings, a rectangular parallelepiped shape is illustrated. The lower part of the housing 110 is formed to be open, so that the illumination unit 120 can irradiate light of a constant brightness onto the battery module B located at the lower part of the housing 110, and the camera unit 130 can photograph the two-component resin R injected into the battery module B. The battery module B is in a state in which the two-component resin R is injected into it by a resin injection device installed in front of the two-component resin automatic inspection device 100. The housing 110 may be supported by the support stand 150 at a predetermined height according to the equipment situation of the workplace, etc.

[0036] The lighting unit 120 irradiates light to the open lower portion of the housing 110. The installation position does not matter as long as it can irradiate light of a certain brightness to the lower portion of the housing 110, but it is preferable that a plurality of LEDs are evenly installed on both sides of the lower portion of the upper surface of the housing 110 as shown in Figures 4 and 5. The lighting unit 120 is not limited to LEDs as long as it is a means for emitting light.

[0037] The camera unit 130 photographs the two-component resin R injected into the battery module B to obtain a resin image. The installation position and number of the camera unit 130 are not important, but it is preferable to install it between the lighting units 120 as illustrated in Figs. 4 and 5. The battery module B may be moved by a moving means (e.g., a conveyor belt) installed between the resin injection device installed in front of the two-component resin automatic inspection device 100 and the two-component resin automatic inspection device 100, and may be located at the open lower part of the housing 110. The resin image acquired by the camera unit 130 may be transferred to the judgment unit 140.

[0038] The determination unit 140 determines the blending state of the two-component resin in real time based on the hue information of the resin image. As an example, the hue information can be specified by any one or more selected from the group consisting of an HSV (Hue / Saturation / Value) model, an RGB model, and an L*a*b* model. The HSV model specifies hue information by the coordinates of hue, saturation, and value, and has an advantage that it is easy to realize a gradient in which the hue gradually changes compared to the RGB model described later. When using HSV, it is easy to express shading and saturation changes by fixing two parameters and moving only one parameter. In the RGB model, hue information is specified by three colors, red, green, and blue, and in the L*a*b* model, hue information is specified by L* (Luminosity) indicating luminosity, a* indicating the degree to which the color is close to red and green, and b* indicating the degree to which the color is close to yellow and blue.

[0039] As an example, the two-component resin automatic inspection device of the present invention may further include a database unit storing color information according to the blending ratio of the two-component resin. Figure 10 shows color information according to the blending ratio of the two-component resin stored in the database unit according to an embodiment of the present invention.

[0040] Referring to FIG. 10, the color information appears differently depending on the blend ratio of the base resin and the hardener. Conversely, the blend ratio of the base resin and the hardener can be estimated based on the color information of the two-component resin.

[0041] In the graph shown in Fig. 10, the x-axis indicates the blending ratio information of the base agent and the hardener, and the y-axis indicates the hue information. Here, blending ratio information of "0%" means the optimal blending ratio, "-5%" means that the hardener is 5% less than the optimal blending ratio, and conversely, "5%" means that the hardener is 5% more than the optimal blending ratio.

[0042] The data shown in Figure 10 can be collected through the following process.

[0043] First, a two-component resin is manufactured by mixing a base agent and a hardener in a predetermined ratio, and then an image of the two-component resin is acquired using the camera unit 130. In addition, hue information is quantified from the resin image using one or more methods selected from the group consisting of the HSV (Hue / Saturation / Value) model, the RGB model, and the L*a*b* model, and this is stored in the database unit.

[0044] The two-component resin is manufactured by changing the mixing ratio of the two-component resin in various ways, and the above process is repeated for each two-component resin with each mixing ratio. In order to increase reliability, a number of samples may be manufactured for one mixing ratio, and the average or median value of the hue information of the samples may be set as a representative value, which is then stored in the database. In this case, the number of samples may be 2 to 50, or 5 to 50.

[0045] As an example, the judgment unit 140 stores a range of hue information extracted from a resin image of a two-component resin in a normal state (hereinafter referred to as a normal range), extracts hue information from the resin image transferred from the camera unit 130, and judges the blending state to be normal if the extracted hue information falls within the previously stored normal range. Of course, if the extracted hue information does not fall within the previously stored normal range, the blending state is judged to be defective. The normal range can be statistically determined from a large number of two-component resin images in a normal state without defects. To explain this using the example of the database in FIG. 10, the judgment unit can judge that the hue information extracted from the image of the two-component resin to be judged is normal if it is within the range of ±5% hue information (68.4 to 64.1).

[0046] As another example, a urethane resin can be determined as normal if its brightness, which corresponds to L* in the color coordinates, is within the range of 120 to 150, and as defective if it is outside that range.

[0047] Meanwhile, when the camera unit 130 is configured with a machine vision camera, the determination unit 140 may be configured with an image processor, software, etc. implemented in the machine vision camera. The machine vision camera includes a high-performance camera, an image processor, software, etc., and after acquiring an image, the image processor and software process the acquired image and provide a judgment that allows a specific task to be performed through an image analysis process according to the purpose of the task to be performed.

[0048] In one example, the two-liquid resin may be a room temperature curing resin. The room temperature curing resin means a composition having a system capable of exerting a predetermined adhesive ability through a curing reaction at room temperature, and may be, for example, a two-liquid resin including a base resin and a curing agent. The base resin may be a silicone resin, a polyol resin, an epoxy resin, or an acrylic resin. Meanwhile, the curing agent may be a known curing agent suitable for the base resin. For example, when the base resin is a silicone resin, a siloxane compound may be used as the curing agent, when the base resin is a polyol resin, an isocyanate compound may be used as the curing agent, when the base resin is an epoxy resin, an amine compound may be used as the curing agent, and when the base resin is an acrylic resin, an isocyanate compound may be used as the curing agent.

[0049] In one example, the two-liquid resin may be a two-liquid urethane-based composition. When a two-liquid urethane-based composition is used, the composition may have the following configuration. A base agent including a polyol and a curing agent including an isocyanate may react at room temperature to cure. The curing reaction may be assisted by a catalyst such as dibutyltin dilaurate (DBTDL). Thus, the two-liquid urethane-based composition may include a physical mixture of a base component (polyol) and a curing agent component (isocyanate), and / or a reaction product (cured product) of the base component and the curing agent component.

[0050] The present invention focuses on the fact that differences in hue of two-component resin occur depending on the blending ratio of the base component and the hardener component, and obtains an image of the two-component resin through the camera unit, obtains hue information of the resin from the resin image, and can grasp in real time whether the blending ratio and blending state of the base component and the hardener component are defective or not through the judgment unit. This has the effect of making it possible to inspect the two-component resin before it hardens, thereby preventing the occurrence of mass defects.

[0051] As an example, the battery module includes a module case and battery cells. The battery cells may be housed in the module case. One or more battery cells may be present in the module case, and a plurality of battery cells may be housed in the module case. The number of battery cells housed in the module case is adjusted according to the application and is not particularly limited. The battery cells housed in the module case may be electrically connected to each other.

[0052] The module case may include at least a side wall and a lower plate that form an internal space in which the battery cells are housed. The module case may further include an upper plate that seals the internal space. The side wall, the lower plate, and the upper plate may be integrally formed with each other. The shape and size of such a module case are not particularly limited and may be appropriately selected depending on the application and the shape and number of the battery cells to be housed in the internal space.

[0053] Next, a two-component resin automatic inspection system according to an embodiment of the present invention will be described with reference to Fig. 6. Fig. 6 is a conceptual diagram showing a two-component resin automatic inspection system according to an embodiment of the present invention.

[0054] As shown in FIG. 6, the two-component resin automatic inspection system according to an embodiment of the present invention includes a resin pouring device 20, a two-component resin automatic inspection device 100, and a moving means CB.

[0055] The resin injection device 20 is substantially the same as the conventional resin injection device 10 described with reference to Figures 1 and 2. However, in the present invention, since the judgment unit 140 of the two-component resin automatic inspection device 100 judges the blending state of the two-component resin in real time based on the color information of the resin image, the pressure sensor 15 may be omitted from the conventional resin injection device 10. The pressure sensor 15 checks whether the blending process is normal or defective, and thus performs a redundant function. This makes it possible to reduce the manufacturing cost of the resin injection device 20.

[0056] The two-component resin automatic inspection device 100 is installed behind the resin injection device 20. The two-component resin automatic inspection device 100 photographs the two-component resin R injected into the battery module B to obtain a resin image, and determines in real time whether the two-component resin R injected into the battery module B is defective or not based on color information of the resin image. Such two-component resin automatic inspection device 100 has been described with reference to Figs. 3 to 5, so a duplicated description will be omitted.

[0057] However, if the resin injection device 20 includes a pressure sensor 15, the judgment unit 140 of the two-component resin automatic inspection device 100 can further judge normal / failure during the blending process based on the pressure value acquired by the pressure sensor 15. The judgment unit 140 can store the range of pressure values ​​in the normal range determined by a statistical method through repeated experiments. If the acquired pressure value falls within the normal range, the judgment unit 140 judges the blending state to be normal. Of course, if the pressure value does not fall within the already-stored normal range, the judgment unit 140 judges the blending state to be faulty.

[0058] The determining unit 140 determines that the blending state is normal if the determination based on the pressure value and the determination based on the color information of the resin image coincide with each other.

[0059] If the normality judged based on the pressure value and the normality judged based on the color information of the resin image do not match, the judgment unit 140 judges that an abnormality such as contamination or failure has occurred in at least one of the pressure sensor 15 of the resin injection device 20, the lighting unit 120, and the camera unit 130 of the two-component resin automatic inspection device 100, and generates alarm information. The alarm can be generated by at least one of visual means, audio means, and tactile means. The alarm information can be generated by at least one of visual means, audio means, and tactile means. An operator who recognizes the alarm information can quickly take necessary measures.

[0060] A moving means CB is installed between the resin pouring device 20 and the two-component resin automatic inspection device 100. The moving means CB may be, for example, a conveyor belt. Of course, moving means CB are also formed in front of the resin pouring device 20 and behind the two-component resin automatic inspection device 100, so that the pre-process of the two-component resin pouring work and the post-process of the two-component resin inspection work can be performed continuously. The moving means CB can periodically pause in response to the photographing time of the camera unit 130 of the two-component resin automatic inspection device 100, and move further after a predetermined time has elapsed.

[0061] Next, a method for automatically inspecting a two-component resin according to an embodiment of the present invention will be described with reference to Fig. 7. Fig. 7 is a flowchart showing a method for automatically inspecting a two-component resin according to an embodiment of the present invention.

[0062] 7, the method for automatically inspecting a two-component resin according to an embodiment of the present invention includes a step S110 of injecting a two-component resin, a step S120 of acquiring a resin image, and a step S130 of determining whether the resin image is normal or not.

[0063] In the two-component resin injection step S110, the resin injection device 20 injects two-component resin R, which is made by mixing a base agent and a hardener, into the gaps (spaces between cylindrical secondary batteries) of the battery module B. The battery module B into which the two-component resin has been injected is moved by the moving means and positioned at the open lower part of the housing 110 of the two-component resin automatic inspection device 100.

[0064] In the resin image acquisition step S120, the camera unit 130 of the two-component resin automatic inspection device 100 captures an image of the two-component resin R injected into the battery module B to acquire a resin image.

[0065] In the normality determination step S130, the determination unit 140 of the two-component resin automatic inspection device 100 determines the blending state of the two-component resin in real time based on the hue information (brightness value, saturation value, RGB value, etc.) of the resin image. The determination unit 140 extracts hue information from the resin image transferred from the camera unit 130, and if the extracted hue information falls within the previously stored normal range, determines that the blending state is normal.

[0066] Next, a two-component resin automatic inspection method according to another embodiment of the present invention will be described with reference to Fig. 8. Fig. 8 is a flowchart showing a two-component resin automatic inspection method according to another embodiment of the present invention. This embodiment can be usefully applied when the resin injection device 20 is equipped with a pressure sensor 15.

[0067] Referring to FIG. 8, the two-component resin automatic inspection method according to one embodiment of the present invention includes a two-component resin injection step S210, a pressure value acquisition step S220, a resin image acquisition step S230, a normality determination step S240, and an alarm information generation step S250.

[0068] In the two-component resin injection step S210, the resin injection device 20 injects two-component resin R, which is made by mixing a base agent and a hardener, into the gaps (spaces between cylindrical secondary batteries) of the battery module B. The battery module B into which the two-component resin has been injected is moved by the moving means and positioned at the open lower part of the housing 110 of the two-component resin automatic inspection device 100.

[0069] In the pressure value acquisition step S220, the pressure sensor 15 of the resin injection device 20 measures and acquires a pressure value in the valve generated during the process of supplying the base agent and the hardener. The measured pressure value can be transferred to the determination unit 140. In this case, the resin injection device 20 may be equipped with a communication module for transferring the pressure value.

[0070] In the resin image acquisition step S230, the camera unit 130 of the two-component resin automatic inspection device 100 captures an image of the two-component resin R injected into the battery module B to acquire a resin image.

[0071] In the normality determining step S240, the determining unit 140 of the two-component resin automatic inspection device 100 determines the blending state of the two-component resin in real time based on the hue information (brightness value, saturation value, RGB value, etc.) of the resin image. The determining unit 140 extracts the hue information from the resin image transferred from the camera unit 130, and determines that the blending state is normal if the extracted hue information falls within the previously stored normal range.

[0072] Meanwhile, the determination unit 140 can determine whether the blending process is normal or defective based on the pressure value acquired in the pressure value acquisition step S220. If the acquired pressure value falls within the normal range, the determination unit 140 determines that the blending state is normal.

[0073] The determining unit 140 determines that the blending state is normal if the determination based on the pressure value and the determination based on the color information of the resin image coincide with each other.

[0074] If the normality judged based on the pressure value and the normality judged based on the hue information of the resin image do not match, the judgment unit 140 can determine that an abnormality such as contamination or failure has occurred in at least one of the pressure sensor 15 of the resin injection device 20, the lighting unit 120, and the camera unit 130 of the two-component resin automatic inspection device 100, and generate alarm information (S250).

[0075] 9 is a diagram illustrating a computing device for performing automated two-component resin inspection according to an embodiment of the present invention. The computing device TN100 in FIG. 9 may be the determining unit 140 described herein.

[0076] 9, the computing device TN100 may include at least one processor TN110, a transceiver device TN120, and a memory TN130. The computing device TN100 may further include a storage device TN140, an input interface device TN150, an output interface device TN160, etc. The components included in the computing device TN100 are connected by a bus TN170 and can communicate with each other.

[0077] The processor TN110 can execute program commands stored in at least one of the memory TN130 and the storage device TN140. The processor TN110 refers to a central processing unit (CPU), a graphics processing unit (GPU), or a dedicated processor on which the methods according to the embodiments of the present invention are performed. The processor TN110 may be configured to implement the procedures, functions, methods, etc. described in connection with the embodiments of the present invention. The processor TN110 can control each component of the computing device TN100.

[0078] Each of the memory TN130 and the storage device TN140 can store various information related to the operation of the processor TN110. Each of the memory TN130 and the storage device TN140 may be composed of at least one of a volatile storage medium and a non-volatile storage medium. For example, the memory TN130 may be composed of at least one of a read only memory (ROM) and a random access memory (RAM).

[0079] The transceiver TN120 can transmit or receive wired or wireless signals and can be connected to a network for communication.

[0080] The present invention may be embodied as a computer program, or may be embodied as a computer program combined with hardware and stored in a computer-readable recording medium.

[0081] Methods according to embodiments of the present invention may be embodied in a program form readable by various computer means and recorded on a computer-readable recording medium, which may include, alone or in combination, program instructions, data files, data structures, and the like.

[0082] The program instructions contained in the recording media may be those specially designed and constructed for the purposes of the present invention, or they may be of the type well known and available to those skilled in the computer software arts.

[0083] For example, recording media include magnetic media such as hard disks, floppy disks and magnetic tape, optical media such as CD-ROMs, DVDs, magneto-optical media such as floptical disks, and hardware devices specifically configured to store and execute program instructions, such as ROM, RAM, flash memory, etc.

[0084] Examples of program instructions may include not only machine language, such as produced by a compiler, but also higher level languages ​​that may be executed by the computer using an interpreter, etc.

[0085] Such hardware devices may be configured to operate as one or more software modules to perform the operations of the present invention, or vice versa.

[0086] Although one embodiment of the present invention has been described above, a person having ordinary knowledge in the technical field may modify and change the present invention in various ways by adding, changing, deleting or adding components within the scope of the concept of the present invention described in the claims, and this may also be said to be included in the scope of the present invention. [Explanation of symbols]

[0087] 10, 20 Resin injection device 100 Automatic inspection device for two-component resin 110 Housing 120 Lighting Department 130 Camera Division 140 Judgment section B. Battery module R 2-liquid resin

Claims

1. An automatic two-component resin inspection device, comprising: a housing having an open bottom; an illumination unit that irradiates light onto the open lower portion of the housing; a camera unit for photographing the two-component resin injected into the battery module located in the open lower portion of the housing to obtain a resin image; a determination unit that determines whether the two-component resin injected into the battery module is normal or not based on color information of the resin image acquired by the camera unit; A database section storing color information according to the mixing ratio of two-component resins; Including, The two-component resin automatic inspection device estimates a mixing ratio of the two-component resin injected into the battery module based on the hue information stored in the database unit.

2. 2. The automatic two-component resin inspection device according to claim 1, wherein the illumination unit is composed of a plurality of LEDs, the plurality of LEDs being evenly disposed on both sides of a lower portion of an upper surface of the housing.

3. 2. The two-component resin automatic inspection device according to claim 1, wherein the camera unit is a machine vision camera, and the determination unit is an image processor implemented in the machine vision camera.

4. 1. An automated two-component resin inspection system, comprising: a resin injection device that injects a two-component resin into the battery module; a two-component resin automatic inspection device that is installed behind the resin injection device, photographs the two-component resin injected into the battery module to obtain a resin image, and determines whether the two-component resin injected into the battery module is normal or not based on color information of the resin image; Including, The two-component resin automatic inspection device is a housing having an open bottom; an illumination unit that irradiates light onto the open lower portion of the housing; a camera unit for photographing the two-component resin injected into the battery module located in the open lower portion of the housing to obtain a resin image; a determination unit that determines whether the two-component resin injected into the battery module is normal or not based on color information of the resin image acquired by the camera unit; A database section storing color information according to the mixing ratio of two-component resins; Including, The two-component resin automatic inspection device is a two-component resin automatic inspection system that estimates the mixing ratio of the two-component resin injected into the battery module based on the hue information stored in the database unit.

5. The resin injection device includes a pressure sensor that measures the pressure value in the valve generated during the process of supplying the base resin and the hardener, The two-component resin automatic inspection system of claim 4, wherein the judgment unit judges that an abnormality has occurred in at least one of the pressure sensor, the lighting unit, and the camera unit when the normality judged based on the pressure value and the normality judged based on the hue information of the resin image do not match, and generates alarm information.

6. A method for automatically inspecting a two-component resin, comprising: A two-component resin injection step in which a resin injection device injects a two-component resin generated by mixing a base agent and a hardener into a battery module; a resin image acquiring step of acquiring a resin image by using a camera unit to capture an image of the two-component resin injected into the battery module; a determining step of determining whether the two-component resin injected into the battery module is normal or not based on color information of the resin image; Including, The two-component resin automatic inspection method estimates the mixing ratio of the two-component resin injected into the battery module based on hue information corresponding to the mixing ratio of the two-component resin stored in a database unit.

7. After the two-component resin injection step, 7. The method of claim 6, further comprising the step of: acquiring a pressure value by using a pressure sensor of the resin injection device to measure and acquire a pressure value in a valve generated during a process of supplying a base resin and a hardener.

8. The normal or non-normal determining step includes: The two-component resin automatic inspection method according to claim 7, further comprising generating alarm information when the determination as to whether the pressure value is normal or not does not match the determination as to whether the resin image is normal or not based on the color information of the resin image.

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