KR20230014426A - Power module with anti-dust function and electric vehicle charging device including the same - Google Patents

Abstract

Disclosed are a power module having an anti-dust function, and an electric vehicle charging device having the same. According to one embodiment of the present invention, the power module having an anti-dust function comprises: a power supply unit storing and converting power supplied from a system for charging an electric vehicle; a measurement unit having a first sensor obtaining air quality information linked to the power module; an analysis unit determining a risk of failure of the power module based on the air quality information; and a control unit generating an alarm signal when the risk of failure is at least a preset threshold level based on a determination result.

Description

Power module with anti-dust function and electric vehicle charging device including the same

The present application relates to a power module having an anti-dust function and an electric vehicle charging device including the same.

In recent years, the spread of eco-friendly electric vehicles that do not generate greenhouse gases has been expanding instead of vehicles using conventional internal combustion engines. It is required.

In this regard, storage batteries mounted in electric vehicles mainly use lithium ion, lithium polymer, lithium iron phosphate, etc. to minimize the weight of the vehicle. Therefore, if an infrastructure that can charge electric vehicles is built in a structure installed in a space where vehicles have easy access, such as road periphery, it is possible to induce multiple electric vehicles to easily access and frequently charge the battery, thereby increasing the efficiency of electric vehicles. It is expected to prolong the life of the battery.

On the other hand, in relation to power modules for charging electric vehicles, which are essentially installed in electric vehicle charging devices, in the case of low-cost modules that are currently mainly used, contact sparks are generated from the power converter and drive driver component leads, etc. This easily occurs, and in particular, when foreign substances are continuously introduced from the outside air, the internal resistance value is changed by the introduced foreign substances, so that the output may not reach the target level or parts may be damaged.

1 is a diagram showing a fire accident occurring in a conventional electric vehicle charging device by way of example. Referring to FIG. 1, in particular, in the case of a conventional electric vehicle charging device equipped with a low-cost module, there is no means for properly monitoring environmental factors in the area around the power module, such as temperature, humidity, and dust, so that the electric vehicle is charged. There was a difficulty in preventing the occurrence of internal component failure, lifespan reduction, or fire accident due to continuous use of the device.

The background technology of the present application is disclosed in Korean Patent Registration No. 10-0803379.

The present invention is intended to solve the above-mentioned problems of the prior art, and measures air quality information, temperature and humidity information, etc. of a space in which a power module that stores and converts power supplied from a system for charging an electric vehicle is disposed, and measures the risk of failure. An object of the present invention is to provide a power module having an anti-dust function and an electric vehicle charging device including the same, which can prevent component failure or risk of fire due to accumulation of dust by continuous analysis.

However, the technical problem to be achieved by the embodiments of the present application is not limited to the technical problems described above, and other technical problems may exist.

As a technical means for achieving the above technical problem, a power module having an anti-dust function according to an embodiment of the present application includes a power supply unit for storing and converting power supplied from a system for charging an electric vehicle, the power A measurement unit including a first sensor for obtaining air quality information associated with a module, an analysis unit for determining the risk of failure of the power module based on the air quality information, and the risk of failure based on the determination result is greater than or equal to a preset threshold level. If it is, it may include a control unit that generates an alarm signal.

In addition, the first sensor may obtain the concentration of dust inside and outside the power module as the air quality information.

In addition, the measuring unit may include a second sensor for acquiring temperature information of the inside and outside of the power module and a third sensor for acquiring humidity information of the inside and outside of the power module.

The analysis unit may determine the risk of failure based on at least one of the air quality information, the temperature information, and the humidity information.

In addition, the power module may be mounted inside an electric vehicle charging device for charging a battery mounted in the electric vehicle.

In addition, the threshold level may be determined in consideration of a mean time between failure (MTBF) level set in advance for the electric vehicle charging device.

In addition, the power module having an anti-dust function according to an embodiment of the present application may include a thermal management unit including a circulation fan circulating air heated by heat of the power supply unit.

The control unit may control driving of the circulation fan when the risk of failure is greater than or equal to the threshold level based on the determination result.

In addition, the control unit may reverse the rotation direction of the circulation fan when the risk of failure is greater than or equal to the threshold level.

In addition, the power module having an anti-dust function according to an embodiment of the present application may include an output unit that outputs the alarm signal as at least one of a visual signal and an acoustic signal.

In addition, the power module having an anti-dust function according to an embodiment of the present application may include a communication unit that transmits the alarm signal to a previously interlocked user terminal.

Meanwhile, an electric vehicle charging device having an anti-dust function according to an embodiment of the present disclosure includes a body portion and at least one power module accommodated inside the body portion and storing power for charging an electric vehicle. A storage unit, a measurement unit including a first sensor for obtaining air quality information associated with the power module, an analysis unit for determining the failure risk of the power module based on the air quality information, and the failure risk based on the determination result. It may include a control unit that generates an alarm signal when it is above a preset threshold level.

The above-described problem solving means are merely exemplary and should not be construed as intended to limit the present disclosure. In addition to the exemplary embodiments described above, additional embodiments may exist in the drawings and detailed description of the invention.

According to the above-described problem solving means of the present application, the air quality information, temperature and humidity information, etc. of the space where the power module that stores and converts the power supplied from the grid to charge the electric vehicle is placed, and continuously analyzes the risk of failure, etc. It is possible to provide a power module having an anti-dust function capable of preventing component failure or the risk of fire due to the lamination, and an electric vehicle charging device including the same.

However, the effects obtainable herein are not limited to the effects described above, and other effects may exist.

1 is a diagram showing a fire accident occurring in a conventional electric vehicle charging device by way of example.
2 is a diagram schematically showing a power module having an anti-dust function according to an embodiment of the present invention.
3 is a schematic configuration diagram of a power module having an anti-dust function according to an embodiment of the present invention.
4 is a detailed configuration diagram of a measurement unit of a power module having an anti-dust function according to an embodiment of the present invention.
5 is a schematic perspective view of an electric vehicle charging device viewed from the front according to an embodiment of the present disclosure.
6 is a schematic perspective view of an electric vehicle charging device viewed from the rear according to an embodiment of the present disclosure.
7 is a diagram illustrating an interface unit of an electric vehicle charging device according to an embodiment of the present disclosure.
8 is a schematic configuration diagram of an electric vehicle charging system according to an embodiment of the present disclosure.
9 is an operation flowchart of a driving method of an electric vehicle charging device according to an embodiment of the present disclosure.

Hereinafter, embodiments of the present application will be described in detail so that those skilled in the art can easily practice with reference to the accompanying drawings. However, the present disclosure may be implemented in many different forms and is not limited to the embodiments described herein. And in order to clearly describe the present application in the drawings, parts irrelevant to the description are omitted, and similar reference numerals are attached to similar parts throughout the specification.

Throughout the present specification, when a part is said to be “connected” to another part, it is not only “directly connected”, but also “electrically connected” or “indirectly connected” with another element in between. "Including cases where

Throughout the present specification, when a member is referred to as being “on,” “above,” “on top of,” “below,” “below,” or “below” another member, this means that a member is located in relation to another member. This includes not only the case of contact but also the case of another member between the two members.

Throughout the present specification, when a certain component is said to "include", it means that it may further include other components without excluding other components unless otherwise stated.

For reference, terms related to direction or position (front, rear, front, rear, rear end, top, upward, downward, width direction, etc.) in the description of the embodiments of the present application refer to the arrangement state of each component shown in the drawings. described as the basis. For example, as seen in FIG. 7 , the forward and backward directions may be from 2 o'clock to 8 o'clock, and the width direction may be from 4 o'clock to 10 o'clock. Also, when viewed in FIG. 7 , the vertical direction may be a direction from 12 o'clock to 6 o'clock.

However, this direction setting may vary depending on the arrangement state of the present device. For example, if necessary, the apparatus of the present invention may be disposed so that the upward direction of FIG. 7 faces the horizontal direction (left and right direction), and as another example, the apparatus of the present invention may be disposed such that the upward direction of FIG. 7 faces an oblique direction. .

The present application relates to a power module having an anti-dust function and an electric vehicle charging device including the same.

Hereinafter, the function and operation of the power module 12 (hereinafter referred to as 'power module 120') having an anti-dust function according to an embodiment of the present application will be first described with reference to FIGS. 2 to 4. 5 to 8 to describe an electric vehicle charging device 100 including a power module 12 and an electric vehicle charging device 100 having an anti-dust function according to an embodiment of the present invention with reference to FIGS. 5 to 8 let it do

2 is a diagram schematically showing a power module having an anti-dust function according to an embodiment of the present invention, and FIG. 3 is a schematic configuration diagram of a power module having an anti-dust function according to an embodiment of the present application.

2 and 3, the power module 12 according to an embodiment of the present application includes a power supply unit 1210, a measurement unit 1220, an analysis unit 1230, a control unit 1240, and a thermal management unit 1250. and an output unit 1260.

The power supply 1210 may store and convert power supplied from a system (not shown) to charge the electric vehicle 1 . Specifically, according to one embodiment of the present application, the power supply unit 1210 may include a SiC power semiconductor.

In addition, according to an embodiment of the present application, in the case of the power module 12 capable of providing rapid charging to the electric vehicle 1, the power supply unit 1210 supplies power of the system with a high power factor and low total harmonic distortion (Total An AC-DC power conversion unit (not shown) for supplying Harmonic Distortion (THD) and a DC-DC power conversion unit (not shown) responsible for electrical isolation and charge control of the battery mounted in the electric vehicle (1) can be designed to include

The measurement unit 1220 may obtain environmental information associated with the power module.

4 is a detailed configuration diagram of a measurement unit of a power module having an anti-dust function according to an embodiment of the present invention.

Referring to FIG. 4 , the measurement unit 1220 includes, in detail, a first sensor 1221 that obtains air quality information associated with the power module 12 and a second sensor that obtains temperature information of the inside and outside of the power module 12 ( 1222) and a third sensor 1223 that obtains humidity information of the inside and outside of the power module 12.

Specifically, the first sensor 1221 may obtain the dust concentration (eg, fine dust concentration, dust concentration) inside and outside the power module as air quality information.

The analysis unit 1230 determines the risk of failure of the power module 12 based on the environmental information associated with the power module 12 including at least one of air quality information, temperature information, and humidity information obtained by the measurement unit 1220. can judge

More specifically, the analyzer 1230 considers a preset Mean Time Between Failure (MTBF) level for the electric vehicle charging device on which the power module 12 is mounted, and sets a threshold for the dust concentration related to the air quality information. The risk of failure of the power module 12 may be determined by holding the level and comparing the previously held threshold level with the air quality information acquired by the measuring unit 1220 .

In this regard, since the mean time between failures (MTBF) is the average time required for the system to become unusable due to the end of its lifespan, it can be used as an indicator of the reliability of the corresponding system. ) may be set as a criterion for determining the failure risk of the power module 12 in consideration of a preset mean time between failure (MTBF) level for the electric vehicle charging device 100 on which the power module 12 is mounted. For example, the average failure interval may be determined according to various performances and specifications of the electric vehicle charging device 100, such as 200,000 hours, 500,000 hours, etc. for the electric vehicle charging device 100, and the analyzer 1230 For example, a threshold level set for the electric vehicle charging device 100 with a long mean time between failures (MTBF) may be relatively strengthened, but is not limited thereto.

At this time, the critical level for the air quality information (dust concentration) possessed by the analyzer 1230 is the temperature, humidity, weather, location, electric vehicle ( 1) to individually respond to various environments in which at least one device condition, such as usage (charging) level (frequency), traffic volume of electric vehicle 1, and distance/number of adjacent electric vehicle charging devices 100, is different, is provided. It may be set as a level.

In this regard, the analysis unit 1230 uses not only the air quality information acquired by the measuring unit 1220, but also temperature information, humidity information, and the like to determine the current environment around the power module 12 or the power module 12 is mounted. The device situation of the electric vehicle charging device 100 may be identified, and the risk of failure may be determined in more detail by selecting a threshold level for the dust concentration corresponding to the identified situation among a plurality of preset levels.

On the other hand, in the description of the embodiments of the present application, the risk of failure of the power module 12 means the possibility of internal parts of the power module 12 being damaged due to high temperature, humidity, accumulation of foreign substances, etc., the risk of spark generation due to dust, etc. It can be a concept that covers the back.

The controller 1240 may generate an alarm signal when the risk of failure is greater than or equal to a predetermined threshold level based on the determination result of the analyzer 1230 .

For example, the control unit 1240 may determine the dust concentration equal to or greater than the threshold based on threshold information corresponding to a predetermined level corresponding to the surrounding environment of the power module 12 among a plurality of levels preset by the analysis unit 1230. If it is determined that is measured by the measurement unit 1220, an alarm signal is generated and the alarm signal is output through a visual method or an audio output method through the output unit 1260 or a user terminal (not shown) through a communication unit (not shown). When), it can be controlled to send an alarm signal.

In other words, the controller 1240 may generate an alarm signal in the form of at least one of a visual signal and an acoustic signal based on the determination result of the analyzer 1230 .

On the other hand, according to an embodiment of the present application, the power module 12 is a thermal management unit including a circulation fan (eg, a cooling fan, etc.) circulating air heated by the heat of the power supply unit 1210. (1250).

In this regard, the control unit 1240 controls driving of the circulation fan of the thermal management unit 1250 when the risk of failure of the power module 12 is greater than or equal to a critical level based on the determination result of the analysis unit 1230, thereby controlling the power module ( 12) It can remove dust/dust accumulated inside and outside. For example, assuming that the circulation fan operates to discharge heated air while rotating in a predetermined direction (eg, clockwise) in a normal state, the controller 1240 determines that the risk of failure of the power module 12 is reduced. If it is determined that the level is above the critical level, the rotation direction of the circulation fan is temporarily switched to the opposite direction (for example, counterclockwise direction) of the direction corresponding to the normal state (clockwise direction in the above example) to dust accumulated on the circulation fan or the like. /Dust, etc. can be removed due to the rapidly changing airflow according to the change in the rotation direction of the circulation fan.

In addition, according to an embodiment of the present application, the control unit 1240 generates a time series (sequence) of changes in the failure risk of the power module 12 measured at a plurality of different time periods or continuously measured within a preset time series interval. Based on the analysis result of the information, a state in which the rotational direction of the circulation fan is driven in the direction corresponding to the normal state (forward direction) and a state in which the rotational direction of the circulation fan is driven in the reverse direction opposite to the forward direction for the purpose of removing foreign substances, etc. It may be to set a rotation direction change period for mutual conversion.

In this regard, the control unit 1240 performs a refresh function (for example, a function to reverse the rotation direction of the circulation fan) to remove dust and foreign substances around the power module 12 in consideration of only the risk of failure evaluated at a single point in time. The power module 12 and the electricity in which the power module 12 is mounted are determined by determining the period and frequency at which the above-mentioned refresh function is executed by grasping the cumulatively monitored change in failure risk in a time-series manner, rather than performing it circuitically. Continuous management of the vehicle charging device 100 may be possible.

In addition, referring to FIG. 2 , the output unit 1260 includes a display that visually displays the notification signal generated by the control unit 1240, a speaker that outputs a sound corresponding to the generated notification signal, and a power module 12. It may include, but is not limited to, lamps that are individually turned on in response to each warning level of the risk of failure determined with respect to.

Also, referring to FIG. 2 , the thermal management unit 1250 may include a plurality of holes 1251 for discharging heat generated from the power supply unit 1210 to the outside of the body of the power module 12 . In addition, referring to FIG. 2, the power module 12 is operated by an inspector of the electric vehicle charging device 100 to couple the power module 12 to the body 110, and the power module from the body 110 ( 12) may include a handle portion 1270 protruding from the body of the power module 12 to easily perform an operation of separating the unit.

Hereinafter, the electric vehicle charging device 100 in which the power module 12 described above is mounted will be described with reference to FIGS. 5 to 8 .

5 is a schematic perspective view of an electric vehicle charging device according to an embodiment of the present disclosure viewed from the front, and FIG. 6 is a schematic perspective view of an electric vehicle charging device according to an embodiment of the present disclosure viewed from the rear.

5 and 6, in the electric vehicle charging device 100 according to an embodiment of the present application, at least one power module 12 (eg, three power modules) is inside the body portion 110. It can be designed in a form that is stacked side by side in the horizontal direction (in other words, the width direction of the body portion 110).

The electric vehicle charging device 100 may include a body part 110, a power storage part 120, a charging part 130, a circulation part 140, an interface part 150, and the like.

The power storage unit 120 may include at least one power module 12 accommodated inside the body unit 110 and storing power for charging the electric vehicle 1 . For example, the power storage unit 120 may include a plurality of power modules 12, but is not limited thereto.

More specifically, the power storage unit 120 includes three power modules 12 stacked along the vertical direction or disposed side by side in the width direction inside the body portion 110 extending in the vertical direction. However, it is not limited thereto, and the number of power modules 12 of the power storage unit 120 according to the embodiment of the present application may vary based on the type, standard, power amount, etc. of the power module 12. Of course there is.

According to one embodiment of the present application, at least one power module 12 may be provided to store power capable of rapidly charging the electric vehicle 1 . For example, each of the plurality of power modules 12 is provided as a SiC power semiconductor-based module capable of supplying power of 20 kW, and three power modules 12 are stacked inside the body 110 to generate 60 kW. The power storage unit 120 may be designed to charge the battery of the electric vehicle 1 with an output of 50 kW, but is not limited thereto.

In this regard, in the case of an electric vehicle charger providing only a slow charging function, a long time of 1 hour to 9 hours is required as a charging time of the electric vehicle 1, whereas when using a fast charging function, a shorter time Also, the electric vehicle 1 can be charged, and thus the maximum output of the electric vehicle charging device 100 is related to the charging capacity and charging time of the battery mounted inside the electric vehicle 1, and the electric vehicle ( For 1), prospective buyers may be a major factor to consider.

A charging cable that supplies power from at least one power module 12 of the power storage unit 120 to the electric vehicle 1 may be coupled to the charging unit 130 . Illustratively, a cable coupling hole 131 into which one end of a wired charging cable (not shown) provided separately from the electric vehicle charging device 100 may be formed in the charging unit 130, but is limited thereto. it is not going to be As another example, the charging unit 130 may be provided with a wireless transmission means for supplying power to the electric vehicle charging device 100 based on a wireless power transmission method.

In addition, the charging unit 130 may include a cable holder 132 for mounting and supporting the charging cable.

According to one embodiment of the present application, the circulation unit 140 is introduced from the outside of the electric vehicle charging device 100 to the inside of the body 110 through the air inlet 141 formed in the body 110, It may include a heat exchanger 142 for discharging air heated by heat generated by at least one power module 12 to the outside of the body 110 .

In addition, the air inlet 141 may be formed in a lower region of the body portion 110 and the heat exchanger 142 may be disposed in an upper region of the body portion 110 . In this regard, in the process of supplying power to the electric vehicle 1 by the power module 12, the power module 12 acts as a heat source that provides heat to the internal space of the body 110, and for this heat source Considering the air circulation structure in the internal space of the body part 110 according to the convection phenomenon, the air inlet 141 for introducing outside air is disposed on the lower side of the body part 110, and the heat exchanger for discharging the heated air ( 142) may be disposed on the upper side of the body portion 110.

In addition, the air inlet 141 and the heat exchanger 142 may be disposed to face each other based on the front and rear directions of the body 110 . Illustratively, when the air inlet 141 is formed in the front part of the lower part of the body part 110, the heat exchanger 142 may be disposed on the upper part of the body part 110 to discharge heated air toward the rear direction. there is.

In addition, according to one embodiment of the present application, a filter member (not shown) may be disposed at the air inlet 141 to filter foreign substances (fine dust, etc.) of the air introduced into the inner space of the body portion 110. . In this regard, the circulation unit 140 measures the air quality (fine dust concentration, etc.) of the air inside the electric vehicle charging device 100 or the outside air around the electric vehicle charging device 100, as will be described in detail below. Including an air quality sensor (not shown), driving of the above-described filter member (not shown) may be controlled based on a sensing result of the air quality sensor (not shown).

In addition, each of the at least one power module 12 of the power storage unit 120 may be disposed on a relatively upper side based on the reference center of the body unit 110 in the vertical direction.

In this regard, due to the chimney effect according to the air inlet 141 at the bottom of the body portion 110 provided in a shape extending in the vertical direction (eg, columnar shape), the flow of internal air can be achieved without a separate power source. It can rise naturally, and the air whose temperature has risen by the power module 12 moves upward at a faster speed together with the outside air continuously introduced through the air inlet 141.

In addition, according to one embodiment of the present application, the circulation unit 140 is disposed on the outer surface of the body portion 110 corresponding to the area where the at least one power module 12 is stacked, so that the at least one power module 12 A heat dissipation member 143 that dissipates generated heat to the outside of the electric vehicle charging device 100 may be included.

Illustratively, the heat dissipation member 143 may be a heat sinking plane.

In this regard, the electric vehicle charging device 100 heats the power module 12 through the air circulation structure and the heat dissipation member 143 that heats and discharges the incoming outside air through the circulation unit 140 to the body portion ( 110) It may be designed to manage internal heat by having a double structure for directly discharging to the outside.

In addition, according to one embodiment of the present application, each of the at least one power module 12 of the power storage unit 120 has an interior portion of the body portion 110 such that a cross-sectional area through which air flows inside the body portion 110 is widened. It may be arranged so as to be biased with respect to the center of a cross section orthogonal to the vertical direction with respect to space (eg, a cross section in a plane direction along the width direction and the front and rear directions).

Specifically, when the electric vehicle charging device 100 is viewed from the front (front), the at least one power module 12 is installed on one side or the other side in the width direction (right or left side in the left-right direction) and in the rear side in the front-back direction. It may be disposed inside the body portion 110 so as to be biased toward the other side or one side in the front and width directions so as to secure a predetermined space through which air can flow.

For better understanding, the standard of the electric vehicle charging device 100 (or the standard of the body 110) is 250 mm in width in the left-right direction and 250 mm in depth in the front-back direction, and the standard of the power module 12 is left and right. When the width in the direction is 200 mm and the depth in the front and rear direction is 200 mm, the power module 12 is 50 mm in the left and right directions and 50 mm in the front and rear directions, which is the difference between the specifications of the electric vehicle charging device 100 and the power module 12. Within a dispositionable range, it may be biasedly disposed so that internal air flows easily.

In addition, the electric vehicle charging device 100 includes a charging unit (not shown) for personal mobility that can supply power to personal mobility such as an electric kickboard and an electric bicycle in addition to a general electric vehicle 1 in the form of a four-wheeled vehicle and a two-wheeled vehicle. It may be provided on the rear side of the unit 110.

For example, the charger for personal mobility (not shown) may include a payment reader 171 for personal mobility and a connector 172 for personal mobility disposed below the rear surface of the body 110 . For example, the connector 172 for personal mobility is a charging type outlet and may include multiple types of outlets providing different voltage standards (eg, 220V, 110V, etc.).

In this regard, the electric vehicle charging device 100 is capable of supplying bi-directional power to general electric vehicles and personal mobility even with a single device, thereby providing improved accessibility to multiple users and expanding the infrastructure related to electric vehicle charging. can alleviate the discomfort of

In addition, referring to FIGS. 5 and 6 , the electric vehicle charging device 100 according to an embodiment of the present application corresponds to a plurality of power modules 12 loaded in the horizontal direction inside the body 110 A plurality of charging units ( 130a , 130b , and 130c in FIG. 5 ) provided to couple charging cables corresponding to the plurality of power modules 12 to the front of the body unit 110 may be provided.

In addition, referring to FIG. 5 , the electric vehicle charging device 100 according to an embodiment of the present application includes a touch screen 152 that visually displays various information and an electric vehicle 1 of the electric vehicle charging device 100. An interface unit 150 including a payment reading unit 155 for paying a fee according to the power supply of the electric vehicle charging device 100 and an emergency cut-off button 156 for emergency shutting off the power supply of the electric vehicle charging device 100 in the event of an unexpected situation. can be provided.

In addition, referring to FIG. 6 , the electric vehicle charging device 100 according to an embodiment of the present invention is an area adjacent to an area in which at least one power module 12 is mounted (for example, the power module 12 The transformer 13 may be included in the lower region).

Meanwhile, environmental information associated with the power module 12, such as the measurement unit 1220, the analysis unit 1230, the control unit 1240, the output unit 1260, and the communication unit (not shown) of the power module 12 described above, is monitored. Components for generating/outputting/transmitting a notification signal for taking appropriate action based on the monitoring result are separate from the power module 12 mounted inside the electric vehicle charging device 100 according to the embodiment of the present invention. As a configuration, it may be provided for the electric vehicle charging device 100 . Hereinafter, an electric vehicle charging device 100 having a function (eg, an anti-dust function) for monitoring environmental information associated with the power module 12 according to an embodiment of the present disclosure will be described.

Specifically, in the electric vehicle charging device 100 having an anti-dust function, a first sensor obtains air quality information associated with the power module 12 and a second sensor obtains temperature information associated with the power module 12. , and a measurement unit (not shown) including a third sensor for obtaining humidity information associated with the power module 12 .

In addition, the electric vehicle charging device 100 may fail at least one of the power module 12 and the electric vehicle charging device 100 based on the environmental information associated with the power module 12 obtained by a measuring unit (not shown). It may include an analysis unit (not shown) that determines the risk.

In addition, the electric vehicle charging device 100 may include a control unit (not shown) that generates an alarm signal when the risk of failure is greater than or equal to a predetermined threshold level based on the determination result of the analyzer (not shown).

7 is a diagram illustrating an interface unit of an electric vehicle charging device according to an embodiment of the present disclosure.

Referring to FIG. 7 , the interface unit 150 may be provided to output user control information about the charger 130, charging information of the electric vehicle 1, remaining power information of the power module 12, billing information, and the like. there is.

Specifically, referring to FIG. 7 , the interface unit 150 may include a touch screen 152 that visually displays various types of information described above.

In addition, the interface unit 150 may include a proximity detection sensor for detecting proximity of a user (driver) or the electric vehicle 1 to the electric vehicle charging device 100 in order to activate a predetermined function of the electric vehicle charging device 100 ( 153) and a camera 151 for acquiring image information of a user (driver) or the electric vehicle 1.

In this regard, the electric vehicle charging device 100 completes the charging of the electric vehicle 1 based on the sensing result of the proximity sensor 153 and the image information of the camera 151 (when charging exceeds a preset level). Including the case where it is made.) When it is made, it may be implemented to control the movement of the electric vehicle 1.

Illustratively, referring to FIG. 7 , the proximity sensor 153 may be disposed below the interface unit 150, and the camera 151 may be disposed above the interface unit 150, but is limited thereto. it is not going to be

In addition, the interface unit 150 may include an audio output unit 154 that audibly outputs various types of information described above. Illustratively, the sound output unit 154 may be a speaker.

In addition, the interface unit 150 may include a payment reading means 155 for paying a fee according to power supply to the electric vehicle 1 by the electric vehicle charging device 100 . Illustratively, the payment reading unit 155 may be provided in various ways such as a credit card reader, a money input module, an NFC tag reader, and an RF card reader.

In addition, the interface unit 150 supplies power to the electric vehicle charging device 100 when an unexpected situation related to the electric vehicle charging device 100 or the electric vehicle 1 occurs (eg, a failure situation, a power interruption situation, etc.) It may include an emergency cut-off button 156 for emergency cut-off.

8 is a schematic configuration diagram of an electric vehicle charging system according to an embodiment of the present disclosure.

Referring to FIG. 8 , an electric vehicle charging system 10 according to an embodiment of the present disclosure may include an electric vehicle charging device 100 and an electric vehicle 1 . Also, although not shown in the drawings, the electric vehicle charging system 10 may include a user terminal (not shown) owned by a driver of the electric vehicle 1 or the like.

Meanwhile, in the description of the embodiment of the present application, the electric vehicle charging device 100 according to an embodiment of the present application may be classified based on the overall appearance and the laminated shape of at least one power module 12 mounted therein. there is. For example, the electric vehicle charging device 100 according to the first embodiment of the present application and the electric vehicle charging device 100 according to the second embodiment of the present application perform equivalent functions in relation to charging of the electric vehicle 1. it may be

The electric vehicle charging device 100 , the electric vehicle 1 , and a user terminal (not shown) may communicate with each other through the network 20 . The network 20 refers to a connection structure capable of exchanging information between nodes such as terminals and servers, and examples of such a network 20 include a 3rd Generation Partnership Project (3GPP) network and a Long LTE (LTE) network. Term Evolution (Term Evolution) network, 5G network, WIMAX (World Interoperability for Microwave Access) network, Internet, LAN (Local Area Network), Wireless LAN (Wireless Local Area Network), WAN (Wide Area Network), PAN (Personal Area Network) Network), wifi network, Bluetooth network, satellite broadcasting network, analog broadcasting network, DMB (Digital Multimedia Broadcasting) network, etc. are included, but are not limited thereto.

User terminals (not shown) include, for example, a smart phone, a smart pad, a tablet PC, and the like and PCS (Personal Communication System), GSM (Global System for Mobile communication), PDC (Personal Digital Cellular), PHS (Personal Handyphone System), PDA (Personal Digital Assistant), IMT (International Mobile Telecommunication)-2000, CDMA (Code Division Multiple Access)-2000, W-CDMA (W-Code Division Multiple Access), Wibro (Wireless Broadband Internet) It may be any kind of wireless communication device such as a terminal.

In addition, the fact that the electric vehicle charging device 100 communicates with the electric vehicle 1 through the network 20 is specifically, a vehicle-mounted terminal (not shown) mounted on the electric vehicle 1 and the electric vehicle charging device 100 ) can be understood as mutually communicating. In this regard, according to an embodiment of the present application, a vehicle-mounted terminal (not shown) is mounted on a vehicle of a subscriber who has subscribed to driver insurance, such as a black box terminal, a navigation module, a high-pass module, or a connected car mobility service module, It can be understood as a concept that broadly includes various devices capable of collecting driving information of a traveling vehicle.

Hereinafter, based on the details described above, the operation flow of the present application will be briefly reviewed.

9 is an operation flowchart of a driving method of an electric vehicle charging device according to an embodiment of the present disclosure.

The driving method of the electric vehicle charging device shown in FIG. 9 may be performed by the electric vehicle charging device 100 described above. Therefore, even if the contents are omitted below, the description of the electric vehicle charging device 100 can be equally applied to the description of the driving method of the electric vehicle charging device.

Referring to FIG. 9 , in step S11 , the power storage unit 120 may (a) charge at least one power module 12 . For example, the electric vehicle charging device 100 may charge the power module 12 based on an external power source provided separately from the body 110 .

Next, in step S12, the charger 130 supplies power from at least one power module 12 to the electric vehicle 1 connected through (b) a charging cable (not shown) through a charging cable (not shown). can supply

Next, in step S13, the circulation unit 140 is (c) introduced into the body 110 through the air inlet 141 formed in the body 110, and then at least one power module 12 Air heated by heat generation may be discharged to the outside of the body portion 110 through the heat exchanger 142 .

In the foregoing description, steps S11 to S13 may be further divided into additional steps or combined into fewer steps, depending on an embodiment of the present invention. Also, some steps may be omitted if necessary, and the order of steps may be changed.

A driving method of an electric vehicle charging device according to an embodiment of the present disclosure may be implemented in the form of program instructions that can be executed through various computer means and recorded in a computer readable medium. The computer readable medium may include program instructions, data files, data structures, etc. alone or in combination. Program instructions recorded on the medium may be those specially designed and configured for the present invention or those known and usable to those skilled in computer software. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks and magnetic tapes, optical media such as CD-ROMs and DVDs, and magnetic media such as floptical disks. - includes hardware devices specially configured to store and execute program instructions, such as magneto-optical media, and ROM, RAM, flash memory, and the like. Examples of program instructions include high-level language codes that can be executed by a computer using an interpreter, as well as machine language codes such as those produced by a compiler. The hardware devices described above may be configured to act as one or more software modules to perform the operations of the present invention, and vice versa.

In addition, the driving method of the electric vehicle charging device described above may be implemented in the form of a computer program or application stored in a recording medium and executed by a computer.

The above description of the present application is for illustrative purposes, and those skilled in the art will understand that it can be easily modified into other specific forms without changing the technical spirit or essential features of the present application. Therefore, the embodiments described above should be understood as illustrative in all respects and not limiting. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined form.

The scope of the present application is indicated by the following claims rather than the detailed description above, and all changes or modifications derived from the meaning and scope of the claims and equivalent concepts thereof should be construed as being included in the scope of the present application.

10: electric vehicle charging system
100: electric vehicle charging device
110: body part
120: power storage unit
12: power module
1210: power supply
1220: measurement unit
1230: analysis unit
1240: control unit
1250: thermal management unit
1260: output unit
130: charging part
140: circulation unit
150: interface unit
1: electric vehicles
20: Network

Claims (9)

As a power module having an anti-dust function,
a power supply unit that stores and converts power supplied from the system to charge the electric vehicle;
a measuring unit including a first sensor that obtains air quality information associated with the power module;
an analysis unit determining a risk of failure of the power module based on the air quality information; and
A control unit generating an alarm signal when the risk of failure is greater than or equal to a predetermined threshold level based on the determination result;
Including, power module. According to claim 1,
Wherein the first sensor acquires the concentration of dust inside and outside the power module as the air quality information. According to claim 1,
The measuring unit,
Further comprising a second sensor for obtaining temperature information of the inside and outside of the power module and a third sensor for obtaining humidity information of the inside and outside of the power module,
The analysis unit,
and determining the risk of failure based on at least one of the air quality information, the temperature information, and the humidity information. According to claim 1,
The power module is mounted inside an electric vehicle charging device for charging a battery mounted in the electric vehicle,
The power module, wherein the threshold level is determined in consideration of a preset Mean Time Between Failure (MTBF) level for the electric vehicle charging device. According to claim 1,
A thermal management unit including a circulation fan for circulating air heated by the heat of the power supply unit;
Including more,
The control unit,
and controlling driving of the circulation fan when the risk of failure is greater than or equal to the threshold level based on the determination result. According to claim 5,
The control unit,
and switching the rotation direction of the circulating fan to a reverse direction when the risk of failure is greater than or equal to the threshold level. According to claim 1,
an output unit outputting the alarm signal as at least one of a visual signal and an acoustic signal;
To further include, the power module. According to claim 1,
A communication unit for transmitting the alarm signal to a pre-interlocked user terminal;
To further include, the power module. An electric vehicle charging device having an anti-dust function,
body part;
a power storage unit including at least one power module accommodated inside the body and storing power for charging the electric vehicle;
a measuring unit including a first sensor that obtains air quality information associated with the power module;
an analysis unit determining a risk of failure of the power module based on the air quality information; and
A control unit generating an alarm signal when the risk of failure is greater than or equal to a predetermined threshold level based on the determination result;
Including, charging device.

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