Water pressure measuring device and water pressure analyzing system for battery cleaning process equipment

Abstract

A water pressure measuring device according to an embodiment of the present invention is a device for measuring the water pressure of a cleaning solution sprayed from battery cleaning process equipment. The water pressure measuring device may include: a housing having a shape corresponding to the housing of a battery cell and having an inner space; a sensor assembly disposed on the outer surface of the housing to sense the water pressure of the cleaning solution; and a control unit disposed in the inner space of the housing to collect water pressure sensing data from the sensor assembly.

Description

Hydraulic pressure measuring device and hydraulic pressure analysis system for battery cleaning process equipment

[0001] The present invention relates to a hydraulic pressure measuring device and a hydraulic pressure analysis system, and more particularly, to a hydraulic pressure measuring device that measures the hydraulic pressure of a cleaning liquid sprayed from a battery cleaning process equipment, and a hydraulic pressure analysis system that analyzes sensing data measured by the hydraulic pressure measuring device.

[0002] Secondary batteries are batteries that can be reused by charging even after discharge, and can be used as an energy source for small devices such as mobile phones, tablet PCs, and vacuum cleaners, and are also used as an energy source for medium and large devices such as automobiles and ESS (Energy Storage Systems) for smart grids.

[0003] Secondary batteries are applied to systems in the form of assemblies, such as battery modules, in which multiple battery cells are connected in series and parallel, or battery packs, in which battery modules are connected in series and parallel, depending on the system requirements. For medium- to large-sized devices such as electric vehicles, high-capacity battery systems, in which multiple battery packs are connected in parallel, can be applied to meet the device's capacity requirements.

[0004] Secondary batteries can be categorized into can-type batteries, in which the electrode assembly is housed in a cylindrical metal can, and pouch-type batteries, in which the electrode assembly is housed in a pouch-shaped case. In general, cylindrical can-type batteries are known to have a relatively large capacity and high structural stability.

[0005] A cylindrical battery cell is manufactured by housing an electrode assembly in a coiled structure in a cylindrical can, injecting electrolyte into the can, and then attaching a cap assembly having electrode terminals to the open top of the can. A positive terminal may be formed in a protruding shape in the upper central area of ​​the cap assembly, and a negative terminal may be formed in another area of ​​the metal can. The cylindrical battery cell may be sealed through a crimping process after the cap assembly is attached to the open top of the can.

[0006] During the manufacturing process of cylindrical battery cells, electrolyte may contaminate the electrode terminals or metal cans, potentially causing battery corrosion. To prevent corrosion caused by foreign substances, a cleaning solution (e.g., washing water) can be sprayed onto the exterior of the battery cell during the cleaning process to remove any foreign substances.

[0007] Typically, measuring the internal pressure of the pipe through which the cleaning solution is sprayed is utilized as a technology to diagnose whether the cleaning process equipment is spraying the cleaning solution at the intended water pressure. However, this conventional technique can have errors between the measured internal pressure and the hydraulic pressure of the cleaning solution discharged from the spray nozzle, limiting its reliability. Furthermore, measuring the internal pressure of all pipes through which the cleaning solution is sprayed can significantly increase the design cost of the water pressure monitoring system. Therefore, typically, only the internal pressure of a single pipe is monitored.

[0008] Accordingly, as a technology to solve the problems of such conventional technology, a hydraulic pressure measuring device and a hydraulic pressure analysis system using the same are required that can accurately measure the hydraulic pressure of the cleaning solution sprayed from the battery cleaning process equipment and can be implemented at low cost.

[0009] An object of the present invention to solve the above problems is to provide a hydraulic pressure measuring device that measures the hydraulic pressure of a cleaning liquid sprayed from a battery cleaning process equipment.

[0010] Another object of the present invention to solve the above problems is to provide a hydraulic analysis system including such a hydraulic pressure measuring device.

[0011] According to one embodiment of the present invention for achieving the above object, a water pressure measuring device is a device for measuring the water pressure of a cleaning liquid sprayed from a battery cleaning process equipment, and may include: a housing having a shape corresponding to a housing of a battery cell and having a space formed therein; a sensor assembly provided on an outer surface of the housing to sense the water pressure of the cleaning liquid; and a control device provided in the space inside the housing to collect water pressure sensing data from the sensor assembly.

[0012] The above sensor assembly may be configured to include a plurality of hydraulic pressure sensors; and a sensor support structure to which the plurality of hydraulic pressure sensors are fixedly coupled.

[0013] The above sensor support structure may be configured to surround the outer surface of the housing.

[0014] The above sensor support structure includes an upper surface, a lower surface, and a side surface, and a plurality of water pressure sensors can be fixedly coupled to each of the upper surface, lower surface, and side surface.

[0015] The above sensor support structure can be formed of an elastic material.

[0016] The above sensor support structure can be formed as a planar structure or a mesh structure.

[0017] The above sensor support structure may be configured such that the plurality of water pressure sensors form a certain pattern and are fixedly coupled at predetermined locations.

[0018] The sensor assembly may further include a connector electrically connected to the plurality of water pressure sensors. Here, the connector may be inserted into a through hole formed on one surface of the housing and electrically connected to the control device.

[0019] The above water pressure measuring device may further include a control board provided in a space portion inside the housing and to which the control device is fixedly connected.

[0020] The above control board may be configured to be fixed by slidingly engaging with a guide rail formed on the inner surface of the housing.

[0021] The above water pressure measuring device may further include a power supply device provided in a space within the housing to supply power. Here, the power supply device may include a battery; and a wireless charging device for charging the battery.

[0022] The above water pressure measuring device may further include a wireless communication module provided in a space inside the housing and transmitting the collected water pressure sensing data to an external water pressure analysis device.

[0023]

[0024] According to one embodiment of the present invention for achieving the above other objects, a hydraulic analysis system is provided as a hydraulic analysis system for battery cleaning process equipment, and may include: a hydraulic measurement device having a shape corresponding to a housing of a battery cell and having a plurality of hydraulic measurement sensors provided on an outer surface; and a hydraulic analysis device that receives hydraulic pressure sensing data from the hydraulic measurement device and diagnoses whether there is an abnormality in the battery cleaning process equipment.

[0025] The above hydraulic pressure analysis device can generate hydraulic pressure information for each coordinate defined on the outer surface of the battery cell based on the received hydraulic pressure sensing data and the identifiers of each of the hydraulic pressure measurement sensors.

[0026] The above hydraulic pressure analysis device can diagnose whether there is an abnormality in the battery cleaning process equipment based on the hydraulic pressure information for each location coordinate.

[0027] According to the above-described embodiment of the present invention, the water pressure of the cleaning liquid sprayed from the battery cleaning process equipment can be accurately measured.

[0028] In addition, according to the above-described embodiment of the present invention, it is possible to implement a hydraulic pressure measuring device and a hydraulic pressure analysis system at low cost.

[0029] Figure 1 is a reference diagram for explaining battery cleaning process equipment.

[0030] Figure 2 is a block diagram of a hydraulic pressure analysis system according to an embodiment of the present invention.

[0031] Fig. 3 shows a hydraulic pressure measuring device according to an embodiment of the present invention.

[0032] Figure 4 is an exploded perspective view of a hydraulic pressure measuring device according to an embodiment of the present invention.

[0033] Figure 5 is an exploded view of a sensor support structure according to an embodiment of the present invention.

[0034] Figure 6 is an operation flowchart of a hydraulic pressure analysis method according to an embodiment of the present invention.

[0035] 100: Hydraulic pressure measuring device

[0036] 110: Housing

[0037] 111: Main body

[0038] 112: Cover

[0039] 120: Sensor assembly

[0040] 121: Water pressure measurement sensor

[0041] 122 ~ 124: Sensor support structure

[0042] 125: Connector

[0043] 130: Control board

[0044] 131: Control device

[0045] 141: Battery

[0046] 142: Wireless charging coil cover

[0047] 143: Wireless charging coil

[0048] 150: Waterproof packing

[0049] 200: Hydraulic analysis device

[0050] The present invention is susceptible to various modifications and embodiments. Specific embodiments are illustrated in the drawings and described in detail in the detailed description. However, this is not intended to limit the present invention to specific embodiments, but rather to encompass all modifications, equivalents, and alternatives falling within the spirit and technical scope of the present invention. Throughout the description of each drawing, similar reference numerals have been used to designate similar components.

[0051] Terms such as "first," "second," "A," and "B" may be used to describe various components, but these components should not be limited by these terms. These terms are used solely to distinguish one component from another. For example, without departing from the scope of the present invention, the first component could be referred to as the "second component," and similarly, the second component could also be referred to as the "first component." The term "and / or" includes any combination of multiple related items listed or any one of multiple related items listed.

[0052] When a component is referred to as being "connected" or "connected" to another component, it should be understood that it may be directly connected or connected to that other component, but that there may be other components intervening. Conversely, when a component is referred to as being "directly connected" or "connected" to another component, it should be understood that there are no other components intervening.

[0053] The terminology used in this application is only used to describe specific embodiments and is not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly indicates otherwise. In this application, it should be understood that the terms "comprise" or "have" indicate the presence of a feature, number, step, operation, component, part, or combination thereof described in the specification, but do not exclude in advance the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

[0054] Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and will not be interpreted in an idealized or overly formal sense unless explicitly defined herein.

[0055]

[0056] Figure 1 is a reference diagram for explaining battery cleaning process equipment.

[0057] Referring to FIG. 1, the battery cleaning process equipment is equipment that removes foreign substances on the outer surface of a battery cell (10) by spraying a cleaning solution through a plurality of spray nozzles (20) onto the outer surface of the battery cell (10).

[0058] Each of the plurality of battery cells (10) is mounted on a carrier and transported, and can be moved to a position where a plurality of spray nozzles (20) are provided. Each of the plurality of spray nozzles (20) is fixedly positioned at a predetermined position and at a predetermined angle, and can spray a cleaning solution toward the outer surface of each of the battery cells (10) being transported sequentially.

[0059] After the cleaning process by the cleaning process equipment, the battery cell (10) is moved to the blower equipment, and the blower equipment can remove the cleaning solution by spraying air on the outer surface of the battery cell (10). Thereafter, the battery cell (10) is moved to the drying equipment, and the drying equipment can dry the battery cell by spraying high-temperature air on the outer surface of the battery cell (10).

[0060] For the cleaning process to be effectively performed using cleaning equipment, the cleaning solution must be sprayed on the outer surface of the battery cell (10) at a uniform water pressure. For example, if the cleaning solution is sprayed only on a specific area at a relatively high water pressure, or only on a specific area at a relatively low water pressure, foreign substances formed on the outer surface of the battery cell cannot be completely removed.

[0061] In order to prevent this phenomenon, it is necessary to precisely measure the water pressure of the cleaning liquid sprayed from each of the plurality of spray nozzles (20) and to calibrate the cleaning process equipment based on the measured values. In general, to monitor the water pressure of the cleaning liquid, a method is utilized in which the water pressure is sensed inside the spray nozzle (20) or inside a pipe connected to the spray nozzle (20) and the water pressure of the sprayed cleaning liquid is indirectly determined based on the sensed value. However, in the case of this conventional technology, an error may occur between the measured sensing value and the water pressure of the cleaning liquid discharged from the spray nozzle (20), which limits the precise calibration of the cleaning process equipment. In addition, when the water pressure is measured for only one spray nozzle (20) considering the design cost of the water pressure monitoring system, it is difficult to determine the water pressure distribution in all directions of the battery cell (10), making it difficult to utilize the sensed value to calibrate the cleaning process equipment.

[0062] The present invention has been devised to address these prior art shortcomings, and proposes a hydraulic pressure measurement device having a shape corresponding to a battery cell housing and having a plurality of hydraulic pressure measurement sensors on its outer surface, and a hydraulic pressure analysis system using the same. Hereinafter, various embodiments of the present invention will be described in detail with reference to FIGS. 2 to 6.

[0063]

[0064] Figure 2 is a block diagram of a hydraulic pressure analysis system according to an embodiment of the present invention.

[0065] Referring to FIG. 2, a hydraulic pressure analysis system according to an embodiment of the present invention may be configured to include a hydraulic pressure measuring device (100) and a hydraulic pressure analysis device (200).

[0066] The water pressure measuring device (100) is a device that is introduced into the cleaning process equipment and measures the water pressure of the cleaning liquid sprayed from the spray nozzles of the cleaning process equipment.

[0067] The water pressure measuring device (100) may have a shape corresponding to the housing of the battery cell and may be configured with a plurality of water pressure measuring sensors provided on the outer surface. That is, the water pressure measuring device (100) according to the present invention is manufactured with the same shape as the battery cell to be cleaned through the cleaning process step, and is configured to measure the water pressure distribution of the cleaning liquid actually sprayed on the outer surface of the battery cell through the plurality of water pressure measuring sensors provided on the outer surface.

[0068] A water pressure measuring device (100) may be configured to include a housing formed in the same shape as the housing of a battery cell, a plurality of water pressure measuring sensors provided on the outer surface of the housing, and a control device provided in a space inside the housing.

[0069] A control device provided inside the housing is electrically connected to a plurality of water pressure measurement sensors, and can collect sensing data, and transmit the collected sensing data to a water pressure analysis device (200) through a communication module provided inside the housing. Meanwhile, the detailed structure and operation of the water pressure measurement device (100) will be described later.

[0070] The hydraulic pressure measuring device (100) is arranged between actual battery cells transported through a carrier of the cleaning process equipment, and can be transported together with the actual batteries so that the cleaning solution can be sprayed, and can be configured to measure the hydraulic pressure of the cleaning solution sprayed during the cleaning process.

[0071] The hydraulic pressure analysis device (200) is a computing device that receives hydraulic pressure sensing data from the hydraulic pressure measurement device (100) and analyzes hydraulic pressure using the received hydraulic pressure sensing data. Here, the hydraulic pressure analysis device (200) generates hydraulic pressure distribution information (e.g., pressure profile, density distribution data, etc.) using the hydraulic pressure sensing data received from the hydraulic pressure measurement device (100), and can diagnose whether there is an abnormality in the cleaning process equipment (e.g., clogging of a specific spray nozzle, etc.).

[0072]

[0073] Fig. 3 shows a hydraulic pressure measuring device according to an embodiment of the present invention.

[0074] Referring to FIG. 3, a hydraulic pressure measuring device (100) may be configured to include a housing (110), a plurality of hydraulic pressure measuring sensors (121), and a control device (131).

[0075] The housing (110) may be formed in a shape corresponding to the housing of the battery cell. For example, if the battery cell applied to the cleaning process equipment is a cylindrical battery cell of the 4680 standard (diameter 46 mm, height 80 mm), the housing (110) of the water pressure measuring device (100) may be manufactured in a shape (diameter 46 mm, height 80 mm) of the same standard as the housing (metal can) of the actual cylindrical battery cell. Since the housing (110) of the water pressure measuring device (100) is formed in the same shape as the actual battery cell, the water pressure distribution of the cleaning solution sprayed on the battery cell during the cleaning process can be measured more accurately.

[0076] A plurality of water pressure measurement sensors (121) may be provided on the outer surface of the housing (110). Here, the water pressure measurement sensor (121) is a device that outputs sensing data corresponding to the pressure applied by the cleaning liquid. The water pressure measurement sensor (121) may be implemented as various known pressure sensors or tactile sensors, such as a capacitive sensor or a piezoelectric sensor, but the scope of the present invention is not limited to these entities.

[0077] A plurality of water pressure measurement sensors (121) may be arranged at predetermined locations, each forming a predetermined pattern. For example, as illustrated in FIG. 3, a plurality of water pressure measurement sensors (121) may be arranged at predetermined intervals on each of the upper, side, and lower surfaces of the housing (110).

[0078] A plurality of water pressure measurement sensors (121) can be each fixedly connected to a sensor support structure formed as a planar structure or a mesh structure. Here, the sensor support structure is configured to surround the outer surface of the housing (110), so that a plurality of water pressure measurement sensors (121) can be arranged on the outer surface of the housing (110).

[0079] The control device (131) is a device that collects water pressure sensing data output from a plurality of water pressure measurement sensors (121) and transmits the collected water pressure sensing data to a water pressure analysis device (200).

[0080] The control device (131) may be provided in a space within the housing (110). The control device (131) may be fixedly connected to a control board (e.g., a PCB board), and the control board may be fixedly connected to the space within the housing.

[0081] The control device (131) may be configured to be electrically connected to a plurality of water pressure measurement sensors (121) and to receive water pressure sensing data from the water pressure measurement sensors (121). For example, a connector electrically connected to each of the water pressure measurement sensors (121) may be formed on the control board and connected to a connector mounting groove electrically connected to the control device (131), so that the control device (131) and the water pressure measurement sensors (121) may be electrically connected.

[0082] The control device (131) can transmit the collected water pressure sensing data to the water pressure analysis device (200) via a communication module. For example, the control device (131) can be configured to transmit the water pressure sensing data to the water pressure analysis device (200) via a wireless communication module provided on the control board.

[0083] Inside the housing (110), a power supply device for supplying power to each component of the hydraulic pressure measuring device (100) may be provided. For example, a battery may be provided inside the housing (110) to supply power to each component, and a wireless charging device (e.g., a wireless charging coil, etc.) for charging the battery may be provided.

[0084]

[0085] Fig. 4 is an exploded perspective view of a hydraulic pressure measuring device according to an embodiment of the present invention, and Fig. 5 is an exploded view of a sensor support structure according to an embodiment of the present invention. Specifically, Figs. 4 and 5 are implementation examples of a hydraulic pressure measuring device according to an embodiment of the present invention, and the structure and operation of a hydraulic pressure measuring device according to various embodiments of the present invention will be described in detail below with reference to Figs. 4 and 5.

[0086] The housing (110) of the hydraulic pressure measuring device may be configured to include a main body (111) and a cover (112). For example, referring to FIG. 4, a cover (112) may be configured to be screw-joined to the upper portion of the cylindrical main body (111) to form a seal. Here, the housing (110) in which the main body (110) and the cover (112) are combined may be formed in a shape identical to the shape of an actual battery cell.

[0087] The sensor assembly (120) may be configured to include a plurality of water pressure measurement sensors (121), sensor support structures (122 to 124), and connectors (125).

[0088] A plurality of water pressure measurement sensors (121) can be fixedly connected to a sensor support structure (122 to 124). Here, each of the plurality of water pressure measurement sensors (121) can be fixedly connected to a predetermined position on the sensor support structure to form a certain pattern.

[0089] The sensor support structure may be formed in a shape corresponding to the housing (110) and configured to surround the outer surface of the housing (110). Here, the sensor support structure may be configured to include an upper surface (122), a lower surface (124), and a side surface (123), as illustrated in FIG. 5, and the upper surface (122), the lower surface (124), and the side surface (123) may be configured to face-to-face contact with the upper surface, the lower surface, and the side surface of the housing (110), respectively. A plurality of water pressure sensors may be fixedly coupled to the upper surface (122), the lower surface (124), and the side surface (123) at a predetermined interval, and may be distributed and arranged on the outer surface of the housing (110).

[0090] In an embodiment, the sensor support structure (122-124) may be formed as a planar structure or a mesh structure. For example, the upper surface (122), the lower surface (124), and the side surface (123) of the sensor support structure may be formed as a planar structure, and water pressure sensors may be fixedly coupled to one surface thereof, and wires may be embedded in the planar structure so that the water pressure sensors and the connector (125) are electrically connected through the wires. As another example, the upper surface (122), the lower surface (124), and the side surface (123) of the sensor support structure may be formed as a mesh structure in which covered wires form a mesh structure, and the water pressure sensors and the connector (125) may be electrically connected through the covered wires.

[0091] In an embodiment, the sensor support structure (122-124) may be formed of an elastic material. According to this embodiment, the sensor support structure can be more easily coupled to the housing (110).

[0092] The control board (130) may be configured to be fixed at a specific location within the housing (110). Here, the control board (130) may be configured to be fixed by slidingly engaging with a guide rail (G) formed longitudinally on the inner surface of the main body (111), as illustrated in FIG. 4.

[0093] On one side of the control board (130), a control device (131), a communication module, memory, a wireless charging receiver, and a connector mounting groove can be mounted and configured.

[0094] The control device (131) can collect water pressure sensing data output from a plurality of water pressure measurement sensors (121) and transmit the collected water pressure sensing data to the water pressure analysis device (200).

[0095] The control device (131) may be configured to be electrically connected to a plurality of water pressure measurement sensors (121) and receive water pressure sensing data from the water pressure measurement sensors (121).

[0096] Referring to FIG. 5, the connector (125) is configured to be electrically connected to each of the water pressure measurement sensors (121), and may be configured to extend to the side portion (123) of the sensor support structure (120). In addition, referring to FIG. 4, the main body portion (111) may have a through hole (H) formed on one surface into which a connector can be inserted. Here, when the sensor assembly (120) is coupled to surround the outer surface of the housing (110), the connector (125) may be inserted into the through hole formed at a position corresponding to the connector (125) and may be fastened to a connector mounting groove (not shown) mounted on the control board (130). The terminal formed inside the connector mounting groove is configured to be electrically connected to the control device (131), so that the control device (131) and the water pressure measurement sensor (121) may be electrically connected.

[0097] The control device (131) can transmit water pressure sensing data received from water pressure sensors to the water pressure analysis device (200) via a communication module. Here, the communication module can be configured as a wireless communication module (e.g., a Bluetooth module, etc.), and the control device (131) can transmit water pressure sensing data to the water pressure analysis device (200) via the wireless communication module after the cleaning process is completed.

[0098] Inside the housing (110), a power supply device for supplying power to each component of the hydraulic pressure measuring device (100) may be provided. As illustrated in FIG. 4, the power supply device may be configured by sequentially stacking and bonding a battery (141), a wireless charging coil cover (142), and a wireless charging coil (143). The battery (141) may be configured to be electrically connected to the control board (130) and supply power.

[0099] A waterproof packing (150) may be provided inside the housing (110) to prevent the inflow of cleaning liquid. As shown in FIG. 4, the waterproof packing (150) is positioned at the joint position of the main body (111) and the cover (112), thereby sealing the housing (120) when the main body (111) and the cover (112) are joined, thereby preventing the inflow of cleaning liquid into the housing.

[0100]

[0101] Figure 6 is an operation flowchart of a hydraulic pressure analysis method according to an embodiment of the present invention.

[0102] The water pressure measuring device (100) is mounted on a carrier of the cleaning process equipment, is sequentially transported together with actual battery cells, and when moved to the position of the spray nozzle, the cleaning solution is sprayed onto the water pressure measuring device (100) (S610).

[0103] The water pressure measuring device (100) collects input sensing data generated through a plurality of water pressure measuring sensors distributed on the outer surface (S620).

[0104] The hydraulic pressure analysis device (200) receives hydraulic pressure sensing data from the hydraulic pressure measurement device (100) and, using the received hydraulic pressure sensing data, generates hydraulic pressure information for each coordinate defined on the outer surface of the battery cell (S630). Here, the hydraulic pressure analysis device (200) can specify the location of each hydraulic pressure measurement sensor based on the identifier of each hydraulic pressure measurement sensor, and can generate hydraulic pressure information for each coordinate based on the hydraulic pressure sensing value and the position coordinate corresponding to the sensing value. Here, the generated hydraulic pressure information for each coordinate can include pressure profile and density distribution data.

[0105] The hydraulic pressure analysis device (200) can diagnose whether there is an abnormality in the cleaning process equipment based on the generated coordinate-specific hydraulic pressure information (S640). For example, if the hydraulic pressure at a specific location exceeds a predefined threshold range, it can be determined that an abnormality has occurred in the spray nozzle corresponding to that location.

[0106]

[0107] According to various embodiments of the present invention as described above, it is possible to accurately measure the water pressure of the cleaning liquid sprayed from the battery cleaning process equipment, and to implement a water pressure measuring device and a water pressure analysis system at low cost.

[0108]

[0109] While some aspects of the present invention have been described in the context of a device, they may also represent a description of a corresponding method, wherein a block or device corresponds to a method step or a feature of a method step. Similarly, aspects described in the context of a method may also be described as a corresponding block or item or a feature of a corresponding device. Some or all of the method steps may be performed by (or using) a hardware device, such as, for example, a microprocessor, a programmable computer, or an electronic circuit. In some embodiments, one or more of the most significant method steps may be performed by such a device.

[0110] Although the present invention has been described with reference to preferred embodiments thereof, it will be understood by those skilled in the art that various modifications and changes may be made to the present invention without departing from the spirit and scope of the present invention as set forth in the claims below.

Claims

1. A device for measuring the water pressure of the cleaning liquid sprayed from the battery cleaning process equipment. A housing having a shape corresponding to the housing of a battery cell and having a space formed inside; A sensor assembly provided on the outer surface of the housing to sense the water pressure of the cleaning liquid; and A control device provided in a space within the housing and collecting water pressure sensing data from the sensor assembly; Hydraulic pressure measuring device.

2. In claim 1, The above sensor assembly, A plurality of hydraulic pressure sensors; and a sensor support structure to which the plurality of hydraulic pressure sensors are fixedly connected; comprising: Hydraulic pressure measuring device.

3. In claim 2, The above sensor support structure is, configured to surround the outer surface of the above housing, Hydraulic pressure measuring device.

4. In claim 3, The above sensor support structure is, Includes the upper surface, lower surface and side surface, A plurality of water pressure sensors are fixedly connected to each of the upper surface, lower surface, and side surface. Hydraulic pressure measuring device.

5. In claim 2, The above sensor support structure is, Formed from elastic material, Hydraulic pressure measuring device.

6. In claim 2, The above sensor support structure is, A hydraulic pressure measuring device formed by a planar structure or a mesh structure.

7. In claim 2, The above sensor support structure is, The above-mentioned plurality of water pressure sensors are configured to form a certain pattern and are fixedly connected at each predetermined location. Hydraulic pressure measuring device.

8. In claim 2, The above sensor assembly, It further includes a connector electrically connected to the plurality of water pressure sensors; The above connector, Inserted into a through hole formed on one side of the housing, and electrically connected to the control device, Hydraulic pressure measuring device.

9. In claim 1, A control board provided in the space inside the housing and to which the control device is fixedly connected; Hydraulic pressure measuring device.

10. In claim 9, The above control board, It is configured to be fixed by slidingly engaging with a guide rail formed on the inner surface of the above housing. Hydraulic pressure measuring device.

11. In claim 1, It further includes a power supply device provided in a space inside the housing and supplying power; The above power supply device, comprising a battery; and a wireless charging device for charging the battery; Hydraulic pressure measuring device.

12. In claim 1, Further comprising a wireless communication module provided in the space inside the housing and transmitting the collected water pressure sensing data to an external water pressure analysis device; Hydraulic pressure measuring device.

13. As a hydraulic pressure analysis system for battery cleaning process equipment, A hydraulic pressure measuring device having a shape corresponding to the housing of a battery cell and having a plurality of hydraulic pressure measuring sensors provided on the outer surface; and A hydraulic pressure analysis device that receives hydraulic pressure sensing data from the hydraulic pressure measuring device and diagnoses whether there is an abnormality in the battery cleaning process equipment; Hydraulic analysis system.

14. In claim 13, The above hydraulic analysis device, Based on the received water pressure sensing data and the identifiers of each of the water pressure measurement sensors, water pressure information is generated for each coordinate defined on the outer surface of the battery cell. Hydraulic analysis system.

15. In claim 14, The above hydraulic analysis device, Based on the water pressure information for each of the above location coordinates, diagnosing whether there is an abnormality in the battery cleaning process equipment, Hydraulic analysis system.

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