KR20240125286A - Sealing structure of electric vehicle charger - Google Patents

Abstract

The present invention relates to a sealing structure of an electric vehicle charger for sealing an enclosure part of the electric vehicle charger, comprising: a first sealing part for sealing one lower side of the enclosure part; and a second sealing part for sealing the other lower side of the enclosure part. Therefore, the present invention has the first sealing unit and the second sealing unit sealing the lower part of the housing unit to seal the lower part of the housing unit to block rainwater or rainwater from flowing into the inner space of the housing unit to prevent leakage or short circuit of the charging facility due to flooding.

Description

SEALING STRUCTURE OF ELECTRIC VEHICLE CHARGER

The present invention relates to a sealing structure of an electric vehicle charger, and more specifically, to a sealing structure of an electric vehicle charger that slowly or rapidly charges a battery of an electric vehicle.

Electric vehicles, developed for the purpose of solving the problems of air pollution, global warming, and energy resource depletion caused by existing automobiles that use gasoline, diesel, kerosene, and gas, are recently making rapid progress by combining them with IT technology.

Accordingly, the recent trend is that electric vehicles are becoming more widespread, and the demand for chargers is also increasing significantly. As the distribution of chargers expands, the demand for chargers for various applications is expected to increase significantly.

In addition, as the application fields of chargers diversify, for example, depending on the installation location, there is a need to manufacture products in various forms and installation methods, such as chargers installed on walls, chargers installed on pillars, chargers installed on the ceiling, and chargers attached to other devices.

One of the key devices required for driving these electric vehicles is the electric vehicle charger, which charges the electric vehicle's battery either slowly or rapidly. The charging method is divided into the Chademo and Combo methods that use direct current, and the 3-phase (AC3P) or single-phase (AC1P) methods that use alternating current.

Previously, there was no international standard, so each manufacturer developed electric vehicle rapid chargers using different charging methods. However, recently, electric vehicle chargers that integrate the three methods above have appeared.

The charging device for these electric vehicles includes a control circuit including a switching device that selects DC power and AC power for DC fast charging and AC fast charging, and a communication module that wirelessly notifies the supplier of charging and power usage. The control circuit is installed inside the charger body.

For electric vehicle rapid chargers that support both the Chademo and Combo modes that use direct current, and the three-phase (AC3P) or single-phase (AC1P) modes that use alternating current, the internal components and circuit layout are of great concern because they have a large number of internal components and complex circuit configurations. This is because if the internal components and circuit layout are not efficient, assembly workability and maintenance are difficult.

In addition, depending on the installation location and usage method of the electric vehicle charger, it must be manufactured in various forms. Although the external form and functional requirements are diverse, the main functions required by the original electric vehicle charger are the same, and the main components used inside the charger are also composed of parts with similar functions.

Conventionally, a circuit board that controls the charging function, a circuit breaker, a power meter, a wired/wireless communication module, a card recognition device for user authentication, etc. are placed inside the charger case, and an LED display device and LCD display device that allow the user to check the operation, a switch and touch input component that allow the user to operate the electric vehicle charger, and a charging line and charging connector that supply charging power to the electric vehicle are used to manufacture an electric vehicle charger.

In addition, the conventional electric vehicle charger described above uses a wiring component that combines terminals and wires to form an electric vehicle charger for electrical connection between the respective components. In order to place and fix the multiple components described above inside the charger case, assembly components such as screws are used.

The leakage circuit breaker used in conventional electric vehicle chargers is the same as the leakage circuit breaker used in general electrical equipment, and is composed of a circuit board that detects leakage current inside a plastic case, and a power cut-off relay, a power input terminal, and a power output terminal as core components.

Most of the above wiring components and assembly parts are assembled by hand to manufacture electric vehicle chargers, and there is a problem that the internal structure becomes complicated due to the large number of wiring components.

In particular, since chargers are often installed outdoors, there was a problem of malfunctions such as current leakage and poor contact between wires due to moisture, dust, and foreign substances entering the wires due to long-term exposure to the external environment.

In addition, these conventional chargers have a problem in that moisture such as rainwater flows into the internal space of the case through the air inlet, and the lifespan of the case is shortened as the moisture flows into various electrical devices inside the case.

Republic of Korea Publication Patent No. 10-2021-0141170 (November 23, 2021) Republic of Korea Patent No. 10-2405340 (June 7, 2022) Republic of Korea Patent No. 10-2331365 (December 1, 2021)

The present invention has been made to solve the above-mentioned conventional problems, and the purpose of the present invention is to provide a sealing structure for an electric vehicle charger which seals the lower part of a body part and blocks rainwater or rainwater from flowing into the internal space of the body part by sealing the lower part of the body part, thereby preventing leakage or short circuit of charging equipment due to submersion.

In addition, another purpose is to provide a sealing structure for an electric vehicle charger that can prevent corrosion by covering and sealing the fastening portion of a body portion and preventing external exposure by providing a first opening/closing member, a first sealing piece, and a first sealing piece as a first sealing portion, thereby improving the airtightness and durability of the body portion.

In addition, another purpose is to provide a sealing structure for an electric vehicle charger that can improve sealing performance and waterproof performance while facilitating hook-type detachable attachment/detachment by sliding an opening/closing member by further providing a first sealing projection and a first sealing groove as a first sealing portion.

In addition, another purpose is to provide a sealing structure for an electric vehicle charger that can improve the drainage performance and waterproof performance of a body part by forming a stepped portion in a body part and covering a fastening portion by providing a second opening/closing member, a second sealing piece, and a second sealing piece as a second sealing portion.

In addition, by installing a first waterproof section and a second waterproof section on both sides of the hull, the inflow of moisture such as rainwater or rainwater into the hull through a breathable waterproof member is blocked, thereby preventing leakage or flooding. Another purpose is to provide a sealing structure for an electric vehicle charger that can easily release heat generated from a charging device installed in the internal space of the hull to the outside.

In addition, another purpose is to provide a sealing structure for an electric vehicle charger that can improve the airtightness and waterproofness of the hinge portion between the body and the door by installing a third waterproof portion in the hinge portion between the body and the door, thereby installing and sealing the hinge portion between the body and the door in the internal space.

In order to achieve the above object, the present invention is characterized by including a sealing structure of an electric vehicle charger for sealing a housing of an electric vehicle charger, comprising: a first sealing portion (10) installed on one side of the lower portion of the housing to seal one side of the lower portion of the housing; and a second sealing portion (20) installed on the other side of the lower portion of the housing to correspond to the first sealing portion (10) to seal the other side of the lower portion of the housing.

In addition, the present invention is characterized by further including a submergence detection unit (30) installed between the first sealing unit (10) and the second sealing unit (20) to detect submergence of the body unit.

The first sealing portion (10) of the present invention is characterized by including: a first opening/closing member coupled to open/close a lower portion of the body portion; a first sealing piece installed on an outer periphery of the first opening/closing member and in close contact with the body portion; and a first sealing piece installed on an periphery of an opening/closing portion of the body portion and in close contact with the first sealing piece.

The first sealing portion (10) of the present invention is characterized in that it further includes: a plurality of first sealing projections that are protruded from the first sealing piece and are detachably connected to the first sealing piece by a fitting-fitting connection; and a plurality of first sealing grooves that are formed through the first sealing piece and into which the first sealing projections are fitted-fittingly connected.

The second sealing portion (20) of the present invention is characterized by including: a second opening/closing member coupled to open/close the lower side of the body portion; a second sealing piece installed so as to protrude on the outer periphery of the opening/closing portion of the body portion and in close contact with the second opening/closing member; and a second contact piece installed on the inner periphery of the opening/closing portion of the body portion and in close contact with the second opening/closing member.

In addition, the present invention is characterized by further including a first waterproofing part (40) installed on one side of the body part to allow ventilation and formed to protrude downwardly to the outside; and a second waterproofing part (50) installed on the other side of the body part to allow ventilation and formed to protrude downwardly to the outside.

In addition, the present invention is characterized by further including a third waterproofing part (60) installed inside between the body part and the door part to seal the hinge part between the body part and the door part.

As described above, the present invention provides a first sealing portion and a second sealing portion that seal the lower portion of the body, thereby sealing the lower portion of the body and preventing rainwater or rainwater from flowing into the internal space of the body, thereby providing an effect of preventing leakage or short circuit of a charging device due to submersion.

In addition, by providing a first opening/closing member, a first sealing piece, and a first sealing piece as the first sealing portion, the fastening portion of the body portion is covered and sealed to prevent external exposure, thereby preventing corrosion and improving the airtightness and durability of the body portion.

In addition, by further providing a first sealing projection and a first sealing groove as the first sealing portion, it provides the effect of facilitating hook-type detachable attachment/detachment by sliding of the opening/closing member, while improving airtightness and waterproof performance.

In addition, by providing a second opening/closing member, a second sealing piece, and a second sealing piece as a second sealing portion, a step portion is formed in the body portion and a fastening portion is covered, thereby providing an effect of improving the drainage performance and waterproof performance of the body portion.

In addition, by installing the first waterproofing part and the second waterproofing part on both sides of the hull, the inflow of moisture such as rainwater or rainwater into the hull is blocked through the breathable waterproofing material, thereby preventing leakage or flooding, and the heat generated from the charging equipment installed in the internal space of the hull can be easily released to the outside.

In addition, by installing a third waterproofing part in the hinge part between the body and the door part, the hinge part between the body and the door part is installed in the internal space and sealed, thereby providing the effect of improving the airtightness and waterproofing of the hinge part between the body and the door part.

FIG. 1 is a schematic diagram showing an electric vehicle charger having a sealing structure of an electric vehicle charger according to one embodiment of the present invention.
FIG. 2 is a state diagram showing the internal state of an electric vehicle charger having a sealing structure of an electric vehicle charger according to one embodiment of the present invention.
FIG. 3 is a diagram showing an open state of an electric vehicle charger having a sealing structure of an electric vehicle charger according to one embodiment of the present invention.
FIG. 4 is a diagram showing the internal configuration of an electric vehicle charger having a sealing structure according to one embodiment of the present invention.
FIG. 5 is a diagram showing an exploded state of an electric vehicle charger having a sealing structure of an electric vehicle charger according to one embodiment of the present invention.
FIG. 6 is a configuration diagram showing a first sealing portion of a sealing structure of an electric vehicle charger according to one embodiment of the present invention.
FIG. 7 is a detailed view showing a first sealing portion of a sealing structure of an electric vehicle charger according to one embodiment of the present invention.
Figure 8 is a configuration diagram showing a submergence detection unit of a sealing structure of an electric vehicle charger according to one embodiment of the present invention.
FIG. 9 is a cross-sectional view showing a first sealing portion and a second sealing portion of a sealing structure of an electric vehicle charger according to one embodiment of the present invention.
FIG. 10 is a configuration diagram showing first and second waterproof parts of a sealing structure of an electric vehicle charger according to one embodiment of the present invention.
Fig. 11 is a configuration diagram showing a third waterproof part of a sealing structure of an electric vehicle charger according to one embodiment of the present invention.
Fig. 12 is a configuration diagram showing a fourth waterproof part of a sealing structure of an electric vehicle charger according to one embodiment of the present invention.

Hereinafter, a preferred embodiment of the present invention will be described in more detail with reference to the attached drawings.

FIG. 1 is a configuration diagram showing an electric vehicle charger having a sealing structure of an electric vehicle charger according to an embodiment of the present invention, FIG. 2 is a state diagram showing the internal state of an electric vehicle charger having a sealing structure of an electric vehicle charger according to an embodiment of the present invention, FIG. 3 is a configuration diagram showing an open state of an electric vehicle charger having a sealing structure of an electric vehicle charger according to an embodiment of the present invention, FIG. 4 is a configuration diagram showing the internal structure of an electric vehicle charger having a sealing structure of an electric vehicle charger according to an embodiment of the present invention, FIG. 5 is a state diagram showing an exploded state of an electric vehicle charger having a sealing structure of an electric vehicle charger according to an embodiment of the present invention, FIG. 6 is a configuration diagram showing a first sealing part of a sealing structure of an electric vehicle charger according to an embodiment of the present invention, FIG. 7 is a detailed diagram showing a first sealing part of a sealing structure of an electric vehicle charger according to an embodiment of the present invention, FIG. 8 is a configuration diagram showing a submergence detection part of a sealing structure of an electric vehicle charger according to an embodiment of the present invention, and FIG. 9 is a configuration diagram showing a first sealing part and a second sealing part of a sealing structure of an electric vehicle charger according to an embodiment of the present invention. FIG. 10 is a cross-sectional view showing the first and second waterproofing sections of the sealing structure of an electric vehicle charger according to one embodiment of the present invention, FIG. 11 is a schematic view showing the third waterproofing section of the sealing structure of an electric vehicle charger according to one embodiment of the present invention, and FIG. 12 is a schematic view showing the fourth waterproofing section of the sealing structure of an electric vehicle charger according to one embodiment of the present invention.

As shown in FIGS. 1 to 5, the sealing structure of the electric vehicle charger according to the present embodiment comprises a first sealing portion (10), a second sealing portion (20), a submergence detection portion (30), a first waterproof portion (40), a second waterproof portion (50), a third waterproof portion (60), and a fourth waterproof portion (70), and is a sealing structure of an electric vehicle charger that seals a body of an electric vehicle charger that charges an electric vehicle slowly or rapidly.

An electric vehicle charger having a sealing structure of the electric vehicle charger of this embodiment comprises a body part (100), a door part (200), an operating part (300), a cable part (400), and a charging module part (500), and is an electric vehicle charger that charges an electric vehicle slowly or rapidly.

The body (100) is a body member made of metal or plastic with an internal space formed so that a charging device can be installed on a rotating rack, and is composed of a body (110), a fixed rack (120), a first rotating rack (130), and a second rotating rack (140).

The hull (110) is a hull member made of a metal or plastic cabinet in the shape of a square box, in which a support rack formed as a support frame is installed so that a charging module (500) is installed in the internal space, and a first ventilation hole (111), a second ventilation hole (112), a third ventilation hole (113), and a fourth ventilation hole (114) are formed.

The first ventilation hole (111) is a ventilation hole installed on one side of the hull (110) and connected to one side of the first rotating rack (130). A plurality of ventilation holes are formed on one side of the hull (110) to allow outside air to flow in and out.

The second ventilation hole (112) is a ventilation hole installed on one side of the other side of the hull (110) and connected to the other side of the first rotating rack (130). A plurality of ventilation holes are formed on one side of the other side of the hull (110) to allow outside air to flow in and out.

These first ventilation holes (111) and second ventilation holes (112) are formed by perforations at both ends of the middle layer of the body (110) and allow outside air to flow in and out to cool the second charging module (520) of the charging module unit (500) installed in the middle layer of the body (110).

The third ventilation hole (113) is a ventilation hole installed on the other side of one side of the hull (110) and connected to one side of the second rotating rack (140). A plurality of ventilation holes are formed on the other side of one side of the hull (110) to allow outside air to flow in and out.

The fourth ventilation hole (114) is a ventilation hole installed on the other side of the hull (110) and connected to the other side of the second rotating rack (140). A plurality of ventilation holes are formed on the other side of the hull (110) to allow outside air to flow in and out.

These third ventilation holes (113) and fourth ventilation holes (114) are formed by perforations at both ends of the middle layer of the body (110) and allow outside air to flow in and out to cool the second charging module (520) of the charging module unit (500) installed in the middle layer of the body (110).

The fixed rack (120) is a rack member installed on the lower layer of the support rack formed as a support frame inside the body (110), and is composed of a fixed member on which the first charging module (510) of the charging module unit (500) is fixedly supported.

The first rotation rack (130) is a rotation rack member installed in the middle layer of the support rack formed as a support frame inside the body (110), and the second charging module (520) of the charging module unit (500) is rotationally supported, and is composed of a first support plate, a first support piece, a first-1 rotation piece, a first-2 rotation piece, and a first fixed plate.

The second rotating rack (140) is a rotating rack member installed on the upper layer of the support rack formed by the support frame of the body (110), and the third charging module (530) of the charging module unit (500) is rotatably supported, and is composed of a second support plate, a second support piece, a second-1 rotating piece, a second-2 rotating piece, and a second fixed plate.

The door part (200) is a door member installed to open and close on the front of the body part (100). It is hinged to one side of the front of the body part (100) by a hinge or the like, and opens and closes the front of the body part (100) by rotation.

A sealing material such as rubber or silicone is installed on the outer perimeter of the door part (200) to prevent the inflow of rainwater or dust to the area in contact with the front part of the body part (100).

The operating unit (300) is an operating member installed in the door unit (200) to operate the charging of the electric vehicle. It is equipped with a display such as an LCD or LED that displays various screens for charging the electric vehicle and is composed of a display means arranged on the front of the door unit (200).

It is also possible for the control unit (300) to be equipped with a user input device, such as a hardware or software button for various user inputs for operating the electric vehicle charger, and a contact or non-contact payment method that recognizes credit card information, a payment barcode, or a payment QR code for payment to pay for the electric vehicle charging cost.

The cable section (400) is a cable member that is connected between the housing section (100) and the electric vehicle and supplies electricity to the electric vehicle. It is composed of a charging cable in which one end is connected to the housing section (100) and the other end forms a charging socket that supplies electricity to the electric vehicle.

It is of course possible for such a charging cable to be wound and mounted in the mounting grooves installed on both sides of the housing (100), or to be wound and mounted in the mounting ring installed on the upper part of the housing (100).

The charging module (500) is installed inside the body (100) and is a charging member that supplies electricity to an electric vehicle, and is composed of a first charging module (510), a second charging module (520), and a third charging module (530).

The first charging module (510) is a module member installed in the lower layer inside the body (100), and is composed of a circuit protection means for controlling an AC electronic switch and relay, a charging processing means for sensing AC and DC voltages, and processing the input of commercial AC.

Circuit protection means include diodes that use electromagnetic force to control AC power and prevent reverse current, and fuses for overvoltage protection, etc., to protect the circuit and protect the circuit from surge voltages such as lightning.

The charging processing means is composed of a terminal board to which a commercial AC input line is wired, thereby removing noise from the commercial AC input and stabilizing the AC signal.

The second charging module (520) is a module member installed in the inner middle layer of the body (100) and is composed of a power conversion means that converts commercial alternating current into direct current of the rated direct current charging capacity.

The power conversion means is composed of an AC/DC converter, and converts the commercial AC input that passes through the circuit protection means for AC input processing and protection circuit and the charging processing means into DC with the DC charging rated capacity to supply power to the electric vehicle.

The third charging module (530) is a module member installed in the inner upper layer of the body (100), and is composed of a main control means including a control circuit and a communication circuit that control the entire charger, and a power supply means that converts commercial alternating current into alternating current with an alternating current charging rated capacity.

The main control means is composed of a main control PCB, a control circuit that controls the on/off of an AC electronic switch or relay, and a wireless communication circuit that settles credit card information or a payment barcode or payment QR code.

The power supply means transforms commercial AC input through a circuit protection means and a charging processing means for AC input processing and protection circuits into AC with an AC charging rated capacity, thereby supplying power to the electric vehicle.

The first sealing member (10) is a sealing member that is installed on the lower side of the body part (100) and seals the lower side of the body part (100), and is composed of a first opening/closing member (11), a first sealing piece (12), a first sealing piece (13), an opening hole (14), and a first sealing cap (15), as shown in FIGS. 6 to 9.

The first opening/closing member (11) is an opening/closing member that is coupled to open/close the lower part of the body (110) of the body part (100), and is composed of an opening/closing plate that is detachably coupled by fitting to open/close the lower part of the body (110).

The first sealing piece (12) is a sealing member that is installed on the outer perimeter of the first opening/closing member (11) and is in close contact with the body (100). It is made of a sealing member such as a gasket made of rubber or silicone so as to seal the outer perimeter of the first opening/closing member (11) when in contact with the body (110).

The first sealing projection (12a) is a projection member that is formed in multiple numbers protruding from the first sealing piece (12) and detachably connected to the first sealing piece (13) by a hook-type fitting connection. It is formed by bending in an approximate “ㄱ” shape and allows the first opening/closing member (11) to be detachably connected to the opening/closing section on the lower side of the body (110) by sliding and fitting laterally.

The first sealing member (13) is a sealing member installed around the opening/closing portion of the body (100) and is in close contact with the first sealing member (12). When in contact with the first opening/closing member (11), it is made of a sealing member such as a gasket made of rubber or silicone to seal the outer perimeter of the contact portion with the body (110).

The first sealing groove (13a) is a groove member in which a plurality of first sealing projections (12a) are formed through the first sealing piece (13) to correspond to the first sealing projections (12a) and into which the first sealing projections (12a) are fitted in a hook-like manner. The groove member is formed by cutting into a straight-line slot groove so that the first sealing projections (12a) slide laterally and are fitted in a hook-like manner to attach and detach the first opening/closing member (11) to the opening/closing section on the lower side of the body (110).

The open hole (14) is a hole member formed through the lower part of the body (110) of the hull (100), and is fixed and supported by the fitting of fastening members such as bolts and nuts to the base part of the floor where the electric vehicle charger is installed, and is sealed by re-sealing the sealing member or airtight member to waterproof the body (110) or prevent the body (110) from being submerged.

The first sealing cap (15) is a cap member installed around the fastening member installed at the lower part of the body (110) of the hull (100), and is made of a sealing member such as rubber or silicone installed around the fastening member installed at the lower part of the body (110), thereby waterproofing the body (110) or preventing the body (110) from being submerged.

The second sealing member (20) is a sealing member that is installed on the other side of the lower portion of the body (100) to correspond to the first sealing member (10) and seals the other side of the lower portion of the body, and is composed of a second opening/closing member (21), a second sealing piece (22), and a second sealing piece (23).

The second opening/closing member (21) is an opening/closing member that is coupled to open/close the lower side of the body (100), and is composed of an opening/closing plate that is detachably coupled by fitting to open/close the lower side of the body (110).

The second sealing piece (22) is a sealing member that is installed to protrude from the outer periphery of the opening/closing portion of the body (100) and is in close contact with the second opening/closing member (21). It is made of a sealing member such as a gasket made of rubber or silicone to seal the outer periphery of the second opening/closing member (21) when in contact with the body (110).

The second sealing member (23) is a sealing member that is installed on the inner perimeter of the opening/closing portion of the body (100) and is in close contact with the second opening/closing member (21). It is made of a sealing member such as a gasket made of rubber or silicone to seal the outer perimeter of the contact portion with the body (110) when in contact with the second opening/closing member (21).

The submergence detection unit (30) is a submergence detection member installed between the first sealing unit (10) and the second sealing unit (20) to detect submergence of the body unit (100), and is composed of a submergence detection sensor (31), a submergence bracket (32), and a submergence cable (33).

The submergence detection sensor (31) is a detection member installed at the lower part of the inside of the hull (100) to detect submergence due to the inflow of rainwater or rainwater into the inside of the hull (100). The submergence detection sensor (31) is composed of various submergence sensors, such as a contact-type submergence sensor that directly measures the height of water, or a non-contact submergence sensor such as an ultrasonic sensor or a radar-type sensor.

These submergence sensors detect submergence due to rainwater or rainwater flowing into the interior of the hull (100) and cut off the power supply to the charging equipment to prevent leakage of electricity due to submergence of the charging equipment.

The submergence bracket (32) is a support member installed to cover the outer perimeter of the submergence detection sensor (31), and is made of a cover bracket having a roughly “ㄷ” shape to cover the outer perimeter of the submergence detection sensor (31).

The submergence cable (33) is a cable member that is connected to one end of the submergence detection sensor (31) through a connector, and is made of a waterproof communication cable that transmits the detection result of the submergence detection sensor (31) and cuts off the power supply to the charging equipment.

The first waterproofing member (40) is a waterproofing member that is installed on one side of the body (100) to allow ventilation, but is formed by protruding or being folded so as to be inclined downward on the outside. As shown in FIG. 10, it is formed by a plurality of cutting blades that are formed so as to be inclined downward on one side of the outside of the body (110), thereby discharging rainwater or rainwater flowing in from the outside downward and blocking rainwater or rainwater from flowing into the inside of the body (110).

The second waterproofing member (50) is a waterproofing member that is installed on the other side of the body (100) to allow ventilation, but is formed by protruding or being folded so as to be inclined downward on the outside. It is formed by a plurality of cutting blades that are formed so as to be inclined downward on the other side of the outside of the body (110), and discharges rainwater or rainwater flowing in from the outside downward, thereby blocking rainwater or rainwater from flowing into the inside of the body (110).

The third waterproofing member (60) is a waterproofing member installed inside between the body part (100) and the door part (200) to seal the hinge part between the body part (100) and the door part (200) without exposing it to the outside, and is composed of a third support bracket (61), a third-first rotating member (62), a third hinge axis (63), a third-second rotating member (64), and an airtight member, as shown in FIG. 11.

The third support bracket (61) is a support member installed on one side of the inside of the body part (100), and is formed as a support frame whose cross-section is bent into a shape of approximately the letter “ㄷ” to form a rotational support space for the door part (200) when opening and closing between the body part (100) and the door part (200).

The 3-1 rotary member (62) is a rotary member installed on one end of the inner side of the 3rd support bracket (61), and is formed as a rotary support member that is fixedly fastened to one end of the 3rd support bracket (61) by interposing the 3-1 fastening member (62a) to support the door part (200) in rotation.

The third hinge axis (63) is a hinge axis member installed at one end of the third-1 rotary piece (62), is installed between the third-1 rotary piece (62) and the third-2 rotary piece (64), and supports the third-2 rotary piece (64) so as to be rotatable, thereby supporting the door part (200) in rotation.

The 3-2 rotary member (64) is a rotary member that is installed on one side of the door part (200) and is rotatably installed on the third hinge axis (63). It is made up of a rotary support member that is fixedly fastened to one end of the door part (200) by interposing the 3-2 fastening member and supports the door part (200) in rotation.

The third confidential member is a confidential member installed between the 3-1 rotary member (62) and the 3-2 rotary member (64) to waterproof the space between the 3-1 rotary member (62) and the 3-2 rotary member (64), and is composed of a third confidential bracket (65) and a confidential member (66).

The third confidential bracket (65) is a support member installed to protrude from one end of the third-first rotary piece (62), and is formed by a support plate protruding from the end of the third-first rotary piece (62) to securely support the third confidential piece (66) by fitting it into place.

The third confidential member (66) is a confidential member that is installed by fitting into one end of the third confidential bracket (65) and is in close contact with the third-second rotary member (64). It is made of a tubular confidential member made of an elastic material such as rubber or silicone, and is sealed and waterproofed by being embedded between the body part (100) and the door part (200) without exposing the hinge part between the body part (100) and the door part (200) to the outside.

The fourth waterproofing member (70), as shown in Fig. 12, is a waterproofing member of a packing material that is installed on the outer perimeter of the body (100) and the door (200) and is installed on the inner side of the locking member (80) to double seal the opening and closing portion between the body (100) and the door (200). It is made of a tube-shaped sealing material made of an elastic material such as rubber or silicone that is installed on the outer perimeter of the opening and closing portion of the body (110) and the door (200).

As described above, according to the present invention, by providing a first sealing portion and a second sealing portion that seal the lower portion of the body, the lower portion of the body is sealed to prevent rainwater or rainwater from flowing into the internal space of the body, thereby providing an effect of preventing leakage or short circuit of a charging device due to submersion.

In addition, by providing a first opening/closing member, a first sealing piece, and a first sealing piece as the first sealing portion, the fastening portion of the body portion is covered and sealed to prevent external exposure, thereby preventing corrosion and improving the airtightness and durability of the body portion.

In addition, by further providing a first sealing projection and a first sealing groove as the first sealing portion, it provides the effect of facilitating hook-type detachable attachment/detachment by sliding of the opening/closing member, while improving airtightness and waterproof performance.

In addition, by providing a second opening/closing member, a second sealing piece, and a second sealing piece as a second sealing portion, a step portion is formed in the body portion and a fastening portion is covered, thereby providing an effect of improving the drainage performance and waterproof performance of the body portion.

In addition, by installing the first waterproofing part and the second waterproofing part on both sides of the hull, the inflow of moisture such as rainwater or rainwater into the hull is blocked through the breathable waterproofing material, thereby preventing leakage or flooding, and the heat generated from the charging equipment installed in the internal space of the hull can be easily released to the outside.

In addition, by installing a third waterproofing part in the hinge part between the body and the door part, the hinge part between the body and the door part is installed in the internal space and sealed, thereby providing the effect of improving the airtightness and waterproofing of the hinge part between the body and the door part.

The present invention described above can be implemented in various other forms without departing from the technical idea or main characteristics thereof. Therefore, the above embodiments are merely illustrative in all respects and should not be construed as limiting.

10: 1st sealing part 20: 2nd sealing part
30: Submersion detection section 40: 1st waterproof section
50: 2nd waterproof section 60: 3rd waterproof section
70: 4th Waterproofing Division

Claims (7)

As a sealing structure of an electric vehicle charger that seals the body of an electric vehicle charger,
A first sealing part (10) installed on one side of the lower portion of the above-mentioned body and sealing one side of the lower portion of the above-mentioned body; and
A sealing structure of an electric vehicle charger, characterized in that it includes a second sealing portion (20) installed on the other side of the lower portion of the body portion to correspond to the first sealing portion (10) and seal the other side of the lower portion of the body portion. In the first paragraph,
A sealing structure of an electric vehicle charger, characterized in that it further includes a submergence detection unit (30) installed between the first sealing unit (10) and the second sealing unit (20) to detect submergence of the body part. In the first paragraph,
The above first sealing portion (10) is
A first opening/closing member coupled to open/close the lower part of the above-mentioned body;
A first sealing piece installed on the outer periphery of the first opening/closing member and in close contact with the body part; and
A sealing structure of an electric vehicle charger, characterized by including a first sealing piece installed around the opening/closing portion of the above-mentioned body and in close contact with the above-mentioned first sealing piece. In the third paragraph,
The above first sealing portion (10) is
A plurality of first sealing projections are formed protruding from the first sealing piece and are detachably connected to the first sealing piece by a fitting connection; and
A sealing structure for an electric vehicle charger, characterized in that it further includes a first sealing groove formed by penetrating the first sealing piece and into which the first sealing protrusion is fitted. In the first paragraph,
The above second sealing portion (20) is
A second opening/closing member coupled to open/close the lower side of the above-mentioned body part;
A second sealing piece installed so as to protrude from the outer periphery of the opening/closing portion of the above-mentioned body and in close contact with the second opening/closing member; and
A sealing structure for an electric vehicle charger, characterized by including a second sealing piece installed on the inner periphery of the opening/closing section of the above-mentioned body part and in close contact with the second opening/closing member. In the first paragraph,
A first waterproofing part (40) installed on one side of the above-mentioned body part to allow ventilation and formed to protrude downwardly to the outside; and
A sealing structure for an electric vehicle charger, characterized in that it further includes a second waterproofing portion (50) that is installed on the other side of the body part to allow ventilation and is formed to protrude downwardly to the outside. In the first paragraph,
A sealing structure of an electric vehicle charger, characterized in that it further includes a third waterproofing part (60) installed inside between the body part and the door part and sealing the hinge part between the body part and the door part.

Images