Electric vehicle charger

Abstract

Disclosed is an electric vehicle charger. The electric vehicle charger disclosed herein may comprise: a case provided with a hole through which air passes; and a filter assembly mounted inside the case. The filter assembly may include: a quadrilateral filter of which one surface faces the hole of the case; a housing that covers the first to third sides among the first to fourth sides of the filter; and a cover that covers a portion of the other surface of the filter and is hinge-connected to a portion of the housing opposite the fourth side of the filter.

Description

electric vehicle charger

[0001] The present disclosure relates to an electric vehicle charger. More specifically, the present disclosure relates to an electric vehicle charger in which a filter can be easily assembled or disassembled.

[0002] Electric vehicle chargers are devices used to charge electric vehicle batteries. These chargers generate significant heat during the process of converting and transmitting electricity. Consequently, inadequate cooling can lead to performance degradation and damage. Air-based cooling methods dissipate heat from the charger's interior by exhausting the air drawn into the charger. To prevent dust and other contaminants from entering the charger, the charger may be equipped with a filter.

[0003] However, filters can gradually deteriorate over time due to dust and contaminants. Therefore, to maintain the performance of your electric vehicle charger, it's necessary to periodically replace or clean the filter.

[0004] The present disclosure aims to solve the above-mentioned and other problems.

[0005] Another purpose may be to provide an electric vehicle charger in which the filter can be easily assembled or disassembled.

[0006] Another purpose may be to provide a structure that minimizes the space required for assembling or disassembling the filter.

[0007] Another purpose may be to provide a structure that maximizes the area of ​​the filter through which air is drawn.

[0008] According to one aspect of the present disclosure for achieving the above or other purposes, an electric vehicle charger may include: a case having a hole through which air passes; and a filter assembly mounted inside the case, wherein the filter assembly may include: a rectangular filter having one side facing the hole of the case; a housing covering first to third side edges among first to fourth side edges of the filter; and a cover covering a portion of the other side of the filter and hingedly connected to a portion of the housing opposite the fourth side edge of the filter.

[0009] The effects of the electric vehicle charger according to the present disclosure are described as follows.

[0010] According to at least one of the embodiments of the present disclosure, an electric vehicle charger can be provided in which a filter can be easily assembled or disassembled.

[0011] According to at least one of the embodiments of the present disclosure, a structure can be provided that can minimize the space required for assembling or disassembling a filter.

[0012] According to at least one of the embodiments of the present disclosure, a structure can be provided that can maximize the area of ​​a filter through which air is introduced.

[0013] Further scope of the applicability of the present disclosure will become apparent from the detailed description below. However, since various modifications and variations within the spirit and scope of the present disclosure will become apparent to those skilled in the art, it should be understood that the detailed description and specific examples, such as preferred embodiments of the present disclosure, are given by way of example only.

[0014] Figures 1 to 19 are drawings illustrating examples of electric vehicle chargers according to embodiments of the present disclosure.

[0015] Hereinafter, embodiments disclosed in this specification will be described in detail with reference to the attached drawings. Regardless of the drawing numbers, identical or similar components will be given the same reference numbers and redundant descriptions thereof will be omitted.

[0016] The suffixes "module" and "part" used for components in the following description are given or used interchangeably only for the convenience of writing specifications, and do not have distinct meanings or roles in themselves.

[0017] In addition, when describing the embodiments disclosed in this specification, if it is determined that a detailed description of a related known technology may obscure the gist of the embodiments disclosed in this specification, the detailed description thereof will be omitted. In addition, the attached drawings are only intended to facilitate easy understanding of the embodiments disclosed in this specification, and the technical ideas disclosed in this specification are not limited by the attached drawings, and should be understood to include all modifications, equivalents, and substitutes included in the spirit and technical scope of the present disclosure.

[0018] Terms that include ordinal numbers, such as first, second, etc., may be used to describe various components, but the components are not limited by these terms. These terms are used solely to distinguish one component from another.

[0019] 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.

[0020] Singular expressions include plural expressions unless the context clearly indicates otherwise.

[0021] In this application, terms such as “include” or “have” are intended to specify the presence of a feature, number, step, operation, component, part or combination thereof described in the specification, but should be understood not to exclude in advance the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts or combinations thereof.

[0022] The direction indications of up (U), down (D), left (Le), right (Ri), front (F), and back (R) shown in the drawings are only for convenience of explanation, and the technical ideas disclosed in this specification are not limited thereby.

[0023]

[0024] Referring to FIGS. 1 and 2, an electronic device (1) can provide power input from an external power source to an external device. The electronic device (1) can charge a battery. The electronic device (1) can charge the battery of an electric vehicle. The electric vehicle may be a battery electric vehicle (BEV) or a plug-in hybrid electric vehicle (PHEV). The electronic device (1) may be referred to as a charger (1) or an electric vehicle charger (1, electric vehicle charger).

[0025] The case (10) can form the exterior of the electronic device (1). The case (10) can provide an internal storage space. The shape of the case (10) can vary. For example, the case (10) can have a vertically long box shape. The bottom part (11) can form the bottom of the case (10), and the top part (12) can form the top of the case (10). The side part (13) can form the side of the case (10). The display (D) and / or other interface units can be mounted on the side part (13) and can face the front of the case (10).

[0026] Electronic components can be mounted in the internal storage space of the case (10). The first unit (10A) can be placed at the bottom of the case (10) and can receive AC (alternating current) power from an external power source. The first unit (10A) can be referred to as an AC unit (10A) or an AC power control board (10A). The second unit (10B) can be placed at the top of the case (10) and can be equipped with fans (not shown). The second unit (10B) can be electrically connected to the first unit (10A) and can convert AC (alternating current) to DC (direct current). The second unit (10B) can be referred to as a power module (10B). The third unit (10C) can be placed at the bottom of the case (10) and can be placed at the rear of the first unit (10A). The third unit (10C) can be electrically connected to the second unit (10B) and can provide DC power to the charging cable (10D) and the connector (10E) connected thereto. The charging cable (10D) can be extended and connected to the connector (10E). For example, the charging cable (10) and the connector (10E) can be provided in two pairs. A user can charge the battery of the electric vehicle by connecting a DC voltage to the battery of the electric vehicle through the connector (10E).

[0027]

[0028] Referring to FIGS. 1 and 3, the door (13F) may form the front of the case (10) and may form a part of the side part (13). For example, the door (13F) may be a vertically elongated rectangular plate. The door (13F) may be referred to as a front panel (13F), and the remaining part (13S) of the side part (13) may be referred to as a side panel (13S). The door (13F) may be rotatably (movably) coupled to the side panel (13S) and may open or close the internal storage space of the case (10).

[0029] A hinge (H) may be adjacent to a first long side of a door (13F). For example, the hinge (H) may be adjacent to a right side of the door (13F). A plurality of hinges (H1, H2, H3) may be arranged along the first long side of the door (13F). One side of the hinge (H) may be coupled to the door (13F), and the other side of the hinge (H) may be coupled to a side panel (13S). A shaft of the hinge (H) may be parallel to a vertical direction and may connect the one side and the other side of the hinge (H). The door (13F) may rotate around the axis of the hinge (H).

[0030] A locker (L) may be adjacent to a second long side of a door (13F). For example, the locker (L) may be adjacent to a left side of the door (13F). A plurality of lockers (L1, L2, L3) may be arranged along the second long side of the door (13F). One side of the locker (L) may be fixed to the door (13F), and the other side of the locker (L) may be detachably connected to a side panel (13S). For example, the other side of the locker (L) may have a hook or latch that detachably hooks to the side panel (13S). A user may unlock the locker (L) to open the door (13F), or close the door (13F) to lock the locker (L). For example, the opening angle of the door (13F) may be 90 degrees or more.

[0031] The PCBs (PD, PE, Printed Circuit Boards) of electronic components mounted on the door (13F), including the display (D), can be mounted on the rear of the door (13F).

[0032] The front filter assembly (200) may be mounted on the rear side of the door (13F). The front filter assembly (200) may be located at the bottom of the door (13F). A front hole (13Fh) may be formed in the door (13F) and may face the front filter assembly (200). The front hole (13Fh) may be a hole through which air passes. The front hole (13Fh) may be a collection of small holes or a large hole. Air may be introduced into the case (10) through the front hole (13Fh) and discharged to the outside of the case (10). The air discharge hole(s) may be formed in the case (10). For example, the air discharge hole(s) may be formed in the upper part of the case (10). The airflow passing through the case (10) may be formed by a fan mounted in the case (10). The above fan may be a fan of a power module (10B, see Fig. 2) and / or a fan (FA, see Fig. 7) provided at the rear of the case (10). The front hole (13Fh) may be referred to as a vent hole (13Fh, vent hole).

[0033]

[0034] Referring to FIGS. 4 to 6, the door (13F) may include a base (13a) and a side wall (13b). The base (13a) may be formed to be generally flat and may form the front and rear sides of the door (13F). The side wall (13b) may be formed around the periphery of the base (13a) and may form a side surface of the base (13a). The side wall (13b) may intersect the base (13a). The side wall (13b) may be bent rearward from the periphery of the base (13a). The hinge (H) may be coupled to a portion of the side wall (13b) forming the right side of the door (13F). The locker (L) may be coupled to a portion of the side wall (13b) forming the left side of the door (13F).

[0035] The front filter assembly (200) may include a bracket (201), a filter (202), a louver (203), gaskets (204, 205, 206), a cover (207), and a hinge (208).

[0036] The bracket (201) may face the rear of the base (13a). The bracket (201) may include a box (2010), a first flange (2011), a second flange (2012), and a third flange (2013).

[0037] The box (2010) may be a rectangular box with openings at the front and rear. The interior space of the box (2010) may face the front hole (13Fh). The box (2010) may be referred to as a louver bracket (2010).

[0038] The first flange (2011) may extend from the front end of the box (2010) to the outside of the box (2010) and may intersect the box (2010). The first flange (2011) may be arranged along the perimeter of the box (2010). The first flange (2011) may be parallel to the rear surface of the base (13a). A plurality of first holes (2011h) may be formed in the first flange (2011). A portion of the first flange (2011) where the first holes (2011h) are formed may protrude further than another portion where the first holes (2011h) are not formed.

[0039] The second flange (2012) may extend from the rear end of the box (2010) to the outside of the box (2010) and may intersect the box (2010). The second flange (2012) may be arranged along the upper edge of the box (2010). The second flange (2012) may be parallel to the first flange (2011). A plurality of second holes (2012h) may be formed in the second flange (2012). A portion of the second flange (2012) where the second holes (2012h) are formed may protrude further than another portion where the second holes (2012h) are not formed.

[0040] The third flange (2013) may extend from the rear end of the box (2010) to the exterior of the box (2010) and may intersect the box (2010). The third flange (2013) may be positioned along the left side, right side, and lower side of the box (2010). A portion of the third flange (2013) may extend forward and backward.

[0041] The filter (202) may be placed at the rear of the box (2010). The filter (202) may face the front hole (13Fh) formed in the base (13a) through the internal space of the box (2010). The filter (202) may be a rectangular filter corresponding to the shape of the box (2010). The filter (202) may filter out foreign substances such as dust in the air passing through the front hole (13Fh). For example, the filter (202) may include a prefilter (2021, prefilter) and a HEPA filter (2022, HEPA filter). Here, HEPA is an abbreviation for High Efficiency Particulate Air.

[0042] The pre-filter (2021) may face the interior space of the box (2010). The pre-filter (2021) may have a mesh structure and may have a plurality of holes. The pre-filter (2021) may filter out sand, animal hair, lint, hair, or large dust particles. The pre-filter (2021) may be referred to as a first filter (2021).

[0043] The HEPA filter (2022) may face the pre-filter (2021). The HEPA filter (2022) may be opposite the pre-filter (2021) in the interior space of the box (2010). The HEPA filter (2022) may have a mesh structure and may have fine pores. The HEPA filter (2022) may filter out fine-sized substances such as fine dust, bacteria, or viruses. The HEPA filter (2022) may be referred to as a second filter (2022).

[0044] The louver (203) may be placed inside the box (2010). The louver (203) may have an overall inverted y shape. The louver (203) may extend in a long direction in the width direction (i.e., left and right direction) of the box (2010). The louver (203) may be referred to as a wing (203) or a water barrier (203). The louver (203) may include a first part (2031), a second part (2032), and a third part (2033).

[0045] The first part (2031) can extend vertically. The second part (2032) and the third part (2033) can each extend obliquely from the bottom of the first part (2031), and the gap between the second and third parts (2032, 2033) can increase as they get farther away from the first part (2031). The fixer (203F) can be fixed inside the box (2010), and a portion of the third part (2033) can be inserted and fixed to the fixer (203F). A fastening member (203S), such as a screw, can be fastened to the second part (2032) by penetrating a hole (2010h) of the box (2010). That is, the louver (203) can be mounted inside the box (2010). A plurality of louvers (203A, 203B) can be spaced apart from each other in the vertical direction. Accordingly, air flowing in from the front hole (13Fh) can be supplied to the filter (202) through the space between the louvers (203A, 203B), but water can be minimized from being blocked by the louvers (203A, 203B) and supplied to the filter (202).

[0046] A gasket (204) may be placed between the first flange (2011) and the base (13a). The gasket (204) may have a shape of a square ring corresponding to the shape of the first flange (2011). A hollow space of the gasket (204) may be formed in the center of the gasket (204) and may face the front hole (13Fh). The gasket (204) may include a material such as rubber or urethane. The hole (204h) may be formed in the gasket (204) and may be aligned with the first hole (2011h) of the first flange (2011). A fastening member (13c), such as a bolt, may protrude rearwardly from the rear surface of the base (13a) and pass through the hole (240h) of the gasket (204) and the first hole (2011h) of the first flange (2011). By fastening a nut (not shown) to the fastening member (13c), the first flange (2011) may be fixed to the base (13a), and the gasket (204) may be sandwiched between the first flange (2011) and the base (13a). Accordingly, the gasket (204) may block the gap between the first flange (2011) and the base (13a), thereby preventing water in the air passing through the front hole (13Fh) from leaking out. The gasket (204) may be referred to as a front gasket (204).

[0047] A first gasket (205) may be disposed between the prefilter (2021) and the second flange (2012). The first gasket (205) may extend along the periphery of the prefilter (2021) and may have a square ring shape. A hollow space of the first gasket (205) may be formed in the center of the first gasket (205) and may be aligned with the hollow space of the gasket (204). The first gasket (205) may include a material such as rubber or urethane. The first gasket (205) may be sandwiched between the prefilter (2021) and the second flange (2012) in response to the combination of the cover (207) and the bracket (201) described below, and may prevent water from leaking into the air.

[0048] A second gasket (206) may be placed between the HEPA filter (2022) and the pre-filter (2021). The second gasket (206) may extend along the circumference of the HEPA filter (2022) and may have a shape of a square ring. A hollow space of the second gasket (206) may be formed in the center of the second gasket (206) and may be aligned with the hollow space of the first gasket (205). The second gasket (206) may include a material such as rubber or urethane. The second gasket (206) may be sandwiched between the HEPA filter (2022) and the pre-filter (2021) in response to the combination of the cover (207) and the bracket (201) described below, and may prevent water from leaking into the air.

[0049] The cover (207) may have a box shape that is open front to back. The cover (207) may include a body (2070), an inner flange (2071), and an outer flange (2072). The cover (207) may be referred to as a cover bracket (207).

[0050] The body (2070) may extend along the perimeter of the filter (202). The filter (202) may be positioned within the body (2070). The body (2070) may be referred to as a filter bracket (2070).

[0051] The inner flange (2071) may extend from the rear end of the body (2070) into the interior of the body (2070) and intersect with the body (2070). The inner flange (2071) may be arranged along the periphery of the body (2070). The inner flange (2071) may face the rear surface of the filter (202) and form a rear opening of the cover (207). Accordingly, the filter (202) may be accommodated inside the cover (207), and air passing through the cover (207) may pass through the rear opening of the cover (207).

[0052] The outer flange (2072) may extend from the front end of the body (2070) to the outside of the body (2070) and may intersect the body (2070). The outer flange (2072) may be arranged along the upper edge of the body (2070). The outer flange (2072) may face the second flange (2012). A hole (2072h) may be formed in the outer flange (2072) and aligned with a second hole (2012h) of the second flange (2012). A fastening member (207F), such as a screw, may pass through the hole (2072h) and be fastened to the second hole (2012h), thereby allowing the outer flange (2072) to be detachably coupled to the second flange (2012).

[0053] A hinge (208) may be arranged on the lower side of the body (2070). A plurality of hinges (208) may be arranged along the lower side of the body (2070). One side of the hinge (208) may be coupled to the body (2070), and the other side of the hinge (208) may be coupled to the third flange (2013). A shaft of the hinge (208) may be parallel to the horizontal direction (i.e., left-right direction) and may connect the one side and the other side of the hinge (208). The cover (207) may rotate around the shaft of the hinge (208).

[0054] A user can assemble or disassemble the filter (202) to or from the front filter assembly (200) from the rear of the open door (13F). The rear space of the open door (13F) can provide a sufficient working space for the user to assemble or disassemble the filter (202). The user can loosen the fastening member (207F), open the cover (207) downwards by approximately 90 degrees, and detach the filter (202) from the cover (207). The user can store the filter (202) within the cover (207), close the cover (207) upwards by approximately 90 degrees, and attach the fastening member (207F). The user can replace, repair, or clean the detached filter (202).

[0055]

[0056] Referring to FIGS. 7 and 8, the side panel (13S) may include a left panel (13L) and a right panel (13R). The left panel (13L) may form the left side of the side part (13), and the right panel (13R) may form the right side of the side part (13). The left panel (13L) may be referred to as a first panel (13L), and the right panel (13R) may be referred to as a second panel (13R).

[0057] A side hole (13Sh) may be formed in the side panel (13S). The side hole (13Sh) may be located at the bottom of the side panel (13S). The side hole (13Sh) may be a collection of small holes or a large hole. The side hole (13Sh) may be referred to as a vent hole (13Sh). The side hole (13Sh) may include a left side hole (13Lh) formed at the bottom of the left panel (13L) and a right side hole (13Rh) formed at the bottom of the right panel (13R). The left side hole (13Lh) may be referred to as a first side hole (13Lh), and the right side hole (13Rh) may be referred to as a second side hole (13Rh).

[0058] There may be two or more left side holes (13Lh) or areas where left side holes (13Lh) are formed, and air may pass through each hole or area to be supplied to each filter assembly (100LA, 100LB) mounted on the inside of the left panel (13L). Alternatively, there may be one left side hole (13Lh) or area where left side holes (13Lh) are formed, and air may pass through the hole or area to be supplied to one filter assembly (100L) mounted on the inside of the left panel (13L). That is, the number of filter assemblies (100L) mounted on the inside of the left panel (13L) may be the same as the number of left side holes (13Lh) or areas where left side holes (13Lh) are formed. For example, a filter assembly (100LA, 100LB) mounted on the inside of a left panel (13L) may include a first filter assembly (100LA) and a second filter assembly (100LB) arranged front to back. The first left side hole (13Lha) may face the first filter assembly (100LA), and the second left side hole (13Lhb) may face the second filter assembly (100LB).

[0059] There may be two or more areas where the right side hole (13Rh) or the right side hole (13Rh) is formed, and air may pass through each hole or area to be supplied to each filter assembly (100RA, 100RB) mounted on the inside of the right panel (13R). Alternatively, there may be one area where the right side hole (13Rh) or the right side hole (13Rh) is formed, and air may pass through the hole or area to be supplied to one filter assembly (100R) mounted on the inside of the right panel (13R). That is, the number of filter assemblies (100R) mounted on the inside of the right panel (13R) may be the same as the number of areas where the right side hole (13Rh) or the right side hole (13Rh) is formed. For example, the filter assembly (100RA, 100RB) mounted on the inside of the right panel (13R) may include a first filter assembly (100RA) and a second filter assembly (100RB) arranged front to back. The first right side hole (13Rha) may face the first filter assembly (100RA), and the second right side hole (13Rhb) may face the second filter assembly (100RB).

[0060] The filter assembly (100L) may be referred to as the left filter assembly (100L) or the first filter assembly (100L). The filter assembly (100R) may be referred to as the right filter assembly (100R) or the second filter assembly (100R). The left and right filter assemblies (100L, 100R) may have the same structure. The left and right filter assemblies (100L, 100R) may be collectively referred to as the filter assembly (100).

[0061] Air can be introduced into the case (10) through the side hole (13Sh) and discharged to the outside of the case (10). Here, the air introduced through the side hole (13Sh) can pass through the filter assembly (100). The hole(s) for air discharge can be formed in the case (10). For example, the hole(s) for air discharge can be formed in the upper part of the case (10). The airflow passing through the case (10) can be formed by a fan (FA, fan) installed inside the case (10) and / or a fan of a power module (10B, see FIG. 2).

[0062] Meanwhile, the back door (13E) may form the rear of the case (10) and may form a part of the side part (13). The back door (13E) may be hinged and may open or close the internal storage space of the case (10). The user may place the back door (13E) close to a wall.

[0063]

[0064] Referring to FIGS. 9 and 10, the filter assembly (100') may include a bracket (101'), a filter (102'), a louver (103'), a cover (107'), and a hinge (108').

[0065] The bracket (101') may face the inside of the right panel (13R) or the left panel (13L). The first flange (1011') may extend from one end of the box (1010') of the bracket (101') to the outside of the box (1010') and may intersect with the box (1010'). The second flange (1012') may extend from the other end of the box (1010') of the bracket (101') to the inside of the box (1010') and may intersect with the box (1010'). A fastening member (13Sc'), such as a bolt, may protrude from the inside of the right panel (13R) or the inside of the left panel (13L) and may penetrate the first flange (1011'). By fastening a nut (not shown) to a fastening member (13Sc'), the first flange (1011') can be fixed to the right panel (13R) or the left panel (13L).

[0066] The louver (103') can be placed inside the box (1010') and fixed to the box (1010') by a fastening member (103S') such as a screw. Air introduced through the side hole (13Sh, see FIGS. 7 and 8) can be supplied to the filter (102') through a plurality of louvers (103'). The plurality of louvers (103') can block water introduced through the side hole (13Sh) from being supplied to the filter (102'). The box (1010') can be referred to as a louver bracket (1010').

[0067] The cover (107') may have a box shape that is opened to the left and right. The cover (107') may be referred to as a cover bracket (107'). The cover (107') may include a body (1070'), an inner flange (1071'), and an outer flange (1072'). The filter (102') may be disposed inside the body (1070'). The body (1070') may be referred to as a filter bracket (1070'). The inner flange (1071') and the outer flange (1072') may extend from both ends of the body (1070') and may intersect with the body (1070'). The outer flange (1072') may face the second flange (1012'), and the inner flange (1071') may be opposite the outer flange (1072'). A fastening member (107F'), such as a screw, may pass through the outer flange (1072') and be fastened to the second flange (1012'), thereby allowing the outer flange (1072') to be detachably coupled to the second flange (1012').

[0068] A hinge (108') can be connected to the bracket (101') and the cover (107'). A plurality of hinges (108') can be arranged along one side of the bracket (101'). One side of the hinge (108') can be coupled to the outer flange (1072') of the cover (107'), and the other side of the hinge (108') can be coupled to the body (1010') of the bracket (101'). The shaft of the hinge (108') can be aligned in the vertical direction (i.e., the up-down direction) and can connect the one side and the other side of the hinge (108'). The cover (107') can rotate around the axis of the hinge (108').

[0069] The user can loosen the fastening member (107F') and open the cover (107') by approximately 90 degrees, and separate the filter (102') from the cover (107'). The user can close the cover (107') by approximately 90 degrees and fasten the fastening member (107F'), store the filter (102') within the cover (107'), close the cover (107') by approximately 90 degrees, and fasten the fastening member (107F'). The user can replace, repair, or clean the separated filter (102').

[0070] However, due to the electronic components, structures, etc. arranged within the case (10), it may be difficult to open and close the cover (107') by approximately 90 degrees, and as a result, assembly and disassembly of the filter (102') may be difficult. In other words, if the electronic components, structures, etc. within the case (10) are arranged so that the cover (107') can be opened and closed by approximately 90 degrees, the volume of the case (10) may increase.

[0071]

[0072] Referring to FIGS. 11 to 13, the filter assembly (100) may include a bracket (101), a filter (102), a louver (103), gaskets (104, 105, 106), a cover (107), and a hinge (108).

[0073] The bracket (101) may face the inside of the right panel (13R) or the inside of the left panel (13L). The bracket (101) may include a box (1010), a first flange (1011), a second flange (1012), a housing (1013), a fixing member (1014), and a hook (1015).

[0074] The box (1010) may be a rectangular box with openings on the left and right. The interior space of the box (1010) may face the side hole (13Sh). The box (1010) may be referred to as a louver bracket (1010).

[0075] The first flange (1011) can extend from one end of the box (1010) toward the inside of the right panel (13R) or the inside of the left panel (13L) to the outside of the box (1010) and can intersect with the box (1010). The first flange (1011) can be arranged along the perimeter of the box (1010). The first flange (1011) can be parallel to the inside of the right panel (13R) or the inside of the left panel (13L). A plurality of first holes (1011h) can be formed in the first flange (1011). A plurality of first protrusions (1011c) can protrude from four corners of the first flange (1011), and the plurality of first holes (1011h) can be formed in the plurality of first protrusions (1011c).

[0076] The second flange (1012) may extend from the other end of the box (1010) to the outside of the box (1010) and may intersect the box (1010). The second flange (1012) may be arranged along the perimeter of the box (1010). The second flange (1012) may be opposite the first flange (1011). The second flange (1012) may be parallel to the first flange (1011).

[0077] The housing (1013) may be bent from the second flange (1012). The direction in which the housing (1013) is bent may be opposite to the direction from the second flange (1012) toward the first flange (1011). The width and height of the housing (1013) may be greater than the width and height of the box (1010). The housing (1013) may include a first part (1013a), a second part (1013b), and a third part (1013c). The first part (1013a) may extend along the upper edge of the box (1010). The second part (1013b) may extend along the lower edge of the box (1010). The third part (1013c) may extend along the rear edge of the box (1010) and connect the first and second parts (1013a, 1013b). The ends of the first and second parts (1013a, 1013b) may be spaced apart from each other and may be referred to as ends of the housing (1013).

[0078] The fixing portion (1014) may be formed at the end of the housing (1013). The fixing portion (1014) may protrude from the end of the housing (1013) to the outside of the housing (1013). The first fixing portion (1014U) may be bent upward from the end of the first part (1013a), and a second hole (1014Uh) may be formed in the first fixing portion (1014U). The second fixing portion (1014D) may be bent downward from the end of the second part (1013b), and a second hole (1014Dh) may be formed in the second fixing portion (1014D).

[0079] A hook (1015) may protrude between the first part (1013a) and the second part (1013b) from the end of the second flange (1012). A plurality of hooks (1015a, 1015b) may be spaced apart from each other.

[0080] The filter (102) may be located inside the housing (1013). The filter (102) may be a rectangular filter corresponding to the shape of the housing (1013). The first part (1013a) of the housing (1013) may cover the upper side of the filter (102). The second part (1013b) of the housing (1013) may cover the lower side of the filter (102). The third part (1013c) of the housing (1013) may cover the rear side of the filter (102). The filter (102) may filter out foreign substances such as dust in the air passing through the side hole (13Sh). For example, the filter (102) may include a prefilter (1021) and a HEPA filter (1022). Here, HEPA is an abbreviation for High Efficiency Particulate Air.

[0081] The pre-filter (1021) may face the internal space of the box (1020). The pre-filter (1021) may have a mesh structure and may have a plurality of holes. The pre-filter (1021) may filter out sand, animal hair, lint, hair, or large dust particles. The pre-filter (1021) may be referred to as a first filter (1021).

[0082] The HEPA filter (1022) may face the pre-filter (1021). The HEPA filter (1022) may be opposite the pre-filter (1021) in the interior space of the box (1010). The HEPA filter (1022) may have a mesh structure and may have fine pores. The HEPA filter (1022) may filter out fine-sized substances such as fine dust, bacteria, or viruses. The HEPA filter (1022) may be referred to as a second filter (1022).

[0083] The louver (103) may be arranged inside the box (1010). The louver (103) may have an overall inverted y shape. The louver (103) may extend in a long direction in the width direction (i.e., front-back direction) of the box (1010). The louver (103) may be referred to as a wing (103) or a water barrier (103). The louver (103) may include a first part (1031), a second part (1032), and a third part (1033).

[0084] The first part (1031) may extend vertically. The second part (1032) and the third part (1033) may each extend obliquely from the bottom of the first part (1031), and the gap between the second and third parts (1032, 1033) may increase as they get farther away from the first part (1031). The fixer (103F) may be fixed to the inside of the box (1010), and a portion of the third part (1033) may be inserted and fixed to the fixer (103F). For example, each of a pair of fixers (103F) may be arranged adjacent to each of the two ends of the louver (103), and the two ends of the louver (103) may be inserted and fixed to the pair of fixers (103F). A fastening member (103S) such as a screw can be fastened to the second part (1032) of the louver (103) by passing through the hole (1010h) of the box (1010). That is, the louver (103) can be mounted inside the box (1010). A plurality of louvers (103A, 103B, 103C, 103D, 103E, 103F) can be spaced apart from each other in the vertical direction. Accordingly, air flowing into the side hole (13Sh) can be provided to the filter (102) through the space between the louvers (103A, 103B, 103C, 103D, 103E, 103F), but water can be minimized from being blocked by the louvers (103A, 103B, 103C, 103D, 103E, 103F) and provided to the filter (102).

[0085] A gasket (104) may be disposed between the first flange (1011) and the right panel (13R). Alternatively, the gasket (104) may be disposed between the first flange (1011) and the left panel (13L). The gasket (104) may have a shape of a square ring corresponding to the shape of the first flange (1011). A hollow space (104S) of the gasket (104) may be formed in the center of the gasket (104) and may face the side hole (13Sh). The gasket (104) may include a material such as rubber or urethane. A plurality of holes (104h) may be formed in the gasket (104). A plurality of protrusions (104c) may protrude from four corners of the gasket (104), and a plurality of holes (104h) may be formed in the plurality of protrusions (104c). The plurality of holes (104h) of the gasket (104) may be aligned with the plurality of first holes (1011h) of the first flange (1011). A fastening member (13Sc), such as a bolt, may protrude from the inside of the right panel (13R) or the inside of the left panel (13L), and may penetrate through the hole (104h) of the gasket (104) and the first hole (1011h) of the first flange (1011). By fastening a fastening member (13Sd) such as a nut to a fastening member (13Sc), the first flange (1011) can be fixed to the right panel (13R) or the left panel (13L).

[0086] In this case, the gasket (104) may be sandwiched between the first flange (1011) and the right panel (13R), and may block the gap between the first flange (1011) and the right panel (13R) to prevent leakage of water in the air passing through the side hole (13Sh). Alternatively, the gasket (104) may be sandwiched between the first flange (1011) and the left panel (13L), and may block the gap between the first flange (1011) and the left panel (13L), and may prevent leakage of water in the air passing through the side hole (13Sh). The gasket (104) may be referred to as a side gasket (104).

[0087] A first gasket (105) may be disposed between a pre-filter (1021) and a second flange (1012). The first gasket (105) may extend along the periphery of the pre-filter (1021) and may have a shape of a square ring. A hollow space of the first gasket (105) may be formed in the center of the first gasket (105) and may be aligned with a hollow space (104S) of the gasket (104). The first gasket (105) may include a material such as rubber or urethane. The first gasket (105) may be sandwiched between the pre-filter (1011) and the second flange (1012) in response to the combination of the cover (107) and the bracket (101) described below, and may prevent water from leaking into the air.

[0088] A second gasket (106) may be placed between the HEPA filter (1022) and the pre-filter (1021). The second gasket (106) may extend along the circumference of the HEPA filter (1022) and may have a shape of a square ring. A hollow space of the second gasket (106) may be formed in the center of the second gasket (106) and may be aligned with the hollow space of the first gasket (105). The second gasket (106) may include a material such as rubber or urethane. The second gasket (106) may be sandwiched between the HEPA filter (1022) and the pre-filter (1021) in response to the combination of the cover (107) and the bracket (101) described below, and may prevent water from leaking into the air.

[0089] The cover (107) may have an overall square ring shape. The cover (107) may be referred to as a cover bracket (107). A hollow space (107S) of the cover (107) may be formed in the central portion of the cover (107). Air passing through the filter (102) may pass through the hollow space (107S) of the cover (107). The cover (107) may include a body (1070), a side portion (1071), and a joining portion (1072).

[0090] The body (1070) may extend along the perimeter of the filter (102) and may have the shape of a rectangular frame. The body (1070) may face the rear of the filter (102) and may form a hollow portion (107S) of the cover (107). The body (1070) may be referred to as a filter bracket (1070).

[0091] The side portion (1071) may be curved from the periphery of the body (1070) toward the housing (1013) and may extend along the periphery of the body (1070). The side portion (1071) may include a first part (1071a), a second part (1071b), and a third part (1071c). The first part (1071a) may be curved from the upper side of the body (1070) toward the first part (1013a) of the housing (1013) and may be adjacent to the first part (1013a). The first part (1071a) may cover the upper side of the filter (102). The second part (1071b) can be bent from the lower side of the body (1070) toward the second part (1013b) of the housing (1013) and can be adjacent to the second part (1013b). The second part (1071b) can cover the lower side of the filter (102). The third part (1071c) can be bent from the rear side of the body (1070) toward the third part (1013c) of the housing (1013) and can be adjacent to the third part (1013c). The third part (1071c) can cover the rear side of the filter (102).

[0092] The connecting portion (1072) may be bent from the front edge of the body (1070) and may extend along the front edge of the body (1070). The direction in which the connecting portion (1072) is bent may be the same as the direction in which the side portion (1071) is bent. The height of the connecting portion (1072) may be greater than the height of the body (1070) and the height of the side portion (1071). The first part (1072a) may form a part of the connecting portion (1072) and may protrude further upward than the first part (1071a) of the side portion (1071). The first part (1072a) may face the first fixing portion (1014U), and a hole (1072ah) aligned with the second hole (1014Uh) of the first fixing portion (1014U) may be formed in the first part (1072a). The second part (1072b) may form a part of the joining part (1072) and may protrude further downward than the second part (1071b) of the side part (1071). The second part (1072b) may face the second fixing part (1014D), and a hole (1072bh) aligned with the second hole (1014Dh) of the second fixing part (1014D) may be formed in the second part (1072b). Each of the fastening members (107F), such as screws, may penetrate each of the holes (1072ah, 1072bh) and be fastened to each of the second holes (1014Uh, 1014Dh), thereby allowing the cover (107) to be detachably coupled to the bracket (101).

[0093] In this case, in order to align each of the holes (1072ah, 1072bh) with each of the second holes (1014Uh, 1014Dh), the user may need to press the cover (107) toward the filter (102). That is, the cover (107) may press the filter (102) toward the second flange (1012) of the bracket (101). In addition, the front edge of the pre-filter (1021) may be caught on the hook (1015), and the front edge of the HEPA filter (1022) may be caught on the joint (1072). That is, the filter (102) may be firmly mounted within the filter assembly (100).

[0094] The hinge (108) may be opposite the hook (1015) or the coupling portion (1072) with respect to the filter (102) within the housing (1013). The hinge (108) may be arranged in the third part (1013c) of the housing (1013). A plurality of hinges (108A, 108B) may be arranged along the third part (1013c). One side (1081) of the hinge (108) may be coupled to the third part (1071c) of the cover (107) (see screw fastening holes (1071ca, 1071cb) of the third part (1071c)), and the other side (1082) of the hinge (108) may be coupled to the third part (1013c) of the housing (1013). The shaft of the hinge (108) can be aligned in the vertical direction (i.e., up-down direction) and can connect one side (1081) and the other side (1082) of the hinge (108). The cover (107) can rotate around the axis of the hinge (108).

[0095]

[0096] Referring to FIGS. 14 to 16, a user can assemble a filter (102) to or detach a filter (102) from a filter assembly (100) mounted on the right panel (13R) or the left panel (13L) at the front of the case (10).

[0097] A user can open the cover (107) by releasing the fastener (107F) and moving it away from the housing (1013) of the bracket (101). The angle between the housing (1013) and the open cover (107) (i.e., the opening angle) may be acute. For example, the opening angle may be less than 30 degrees. The hinge (108) may have a protruding structure formed on one side (1081) and / or the other side (1082) to limit the opening angle of the cover (107). When the cover (107) is opened, the filter (102) can be released from the engaging portion (1071). The user can move the filter (102) toward the open cover (107) to release the hook (1015). The user can then remove the filter (102) from the space between the housing (1013) and the cover (107). For example, a user can first remove the HEPA filter (1022) and then remove the pre-filter (1021). In another example, a user can remove the HEPA filter (1022) and the pre-filter (1021) together. The cover (107) can be opened only to the extent necessary to remove the filter (102). The user can replace, repair, or clean the removed filter (102).

[0098] Accordingly, the filter (102) can be separated from or assembled to the filter assembly (100) in a sliding manner even when the cover (107) is opened only at a relatively small angle. That is, when assembling and disassembling the filter (102), interference between the cover (107) and electronic components, structures, etc. arranged within the case (10) can be minimized. In other words, since the space required to open or close the cover (107) is minimized, it can be advantageous for space-efficient arrangement of components within the case (10). For example, some component(s) within the case (10) (see the first and second units (10A, 10B) of FIG. 2) can be arranged between the left filter assembly (100L) and the right filter assembly (100R) (see FIG. 2). The above component(s) can overlap the left filter assembly (100L) and the right filter assembly (100R) in the horizontal direction, and can avoid colliding with the above component(s) even when the covers (107) of the left and right filter assemblies (100L, 100R) are opened.

[0099]

[0100] Referring to FIGS. 17 to 19, air passing through the side hole (13Sh) can pass through the internal space of the box (1010; 1010') and the filter (102; 102'). The first hole (1011S; 1011S') may be a hollow space of the first flange (1011; 1011') and may provide a passage for air flowing into the internal space of the box (1010; 1010'). The first hole (1011S; 1011SS') may have a size corresponding to the side hole (13Sh). The second hole (1012S; 1012S') may be a hollow space of the second flange (1012; 1012') and may provide a passage for air flowing into the filter (102; 102'). The first flange (1011; 1011') may be referred to as a joint area.

[0101] Referring to the right drawings of FIGS. 17 and 19, the first flange (1011) may extend outward from one end of the box (1010), and the second flange (1012) may also extend outward from the other end of the box (1010). The inner perimeter of the second flange (1012) may be arranged along the box (1010) along the inner perimeter of the first flange (1011). The size of the second hole (1012S) may be the same as the size of the first hole (1011S). The size of the second hole (1012S) may correspond to the area of ​​the filter (102) through which air is introduced. Accordingly, the area of ​​the filter (102) through which air is introduced may correspond to (be the same as) the size of the first hole (1011S), and the air intake rate of the filter (102) may be high. Here, the air intake rate may be the ratio of the area of ​​the filter (102) into which air is introduced to the size of the first hole (1011S).

[0102] Referring to the left drawings of FIGS. 18 and 19, the first flange (1011') may extend outward from one end of the box (1010'), and the second flange (1012') may extend inward from the other end of the box (1010'). The inner perimeter of the first flange (1011') may be arranged along the box (1010'), and the outer perimeter of the second flange (1012') may be arranged along the box (1010'). The size of the second hole (1012S') may be smaller than the size of the first hole (1011S'). The size of the second hole (1012S') may correspond to the area of ​​the filter (102') through which air is introduced. Accordingly, the area of ​​the filter (102') through which air is introduced may be smaller than the size of the first hole (1011S'). That is, the air intake rate of the filter (102') of the filter assembly (100') of Fig. 18 may be lower than the air intake rate of the filter (102) of the filter assembly (100) of Fig. 17. Here, the air intake rate may be a ratio of the area of ​​the filter (102; 102') into which air is introduced to the size of the first hole (1011S; 1011S').

[0103]

[0104] Referring to FIGS. 1 to 19, an electric vehicle charger (1) may include: a case (10) having a hole (13Sh) through which air passes; and a filter assembly (100) mounted inside the case (10), wherein the filter assembly (100) may include: a rectangular filter (102) having one side facing the hole (13Sh) of the case (10); a housing (1013) covering the first to third side edges among the first to fourth side edges of the filter (102); and a cover (107) covering a portion of the other side of the filter (102) and hinge-connected to a portion of the housing (1013) opposite the fourth side edge of the filter (102).

[0105] The housing (1013) may include: a first part (1013a) extending along the first side of the filter (102); a second part (1013b) extending along the second side of the filter (102) and opposite the first part (1013a); and a third part (1013c) extending along the third side of the filter (102) and connecting the first and second parts (1013a, 1013b), and the cover (107) may be hinge-connected to the third part (1013c).

[0106] The filter assembly (100) may further include a hinge (108) having one side (1081) coupled to the cover (107) and the other side (1082) coupled to the third part (1013c), and a shaft of the hinge (108) may connect the one side (1081) and the other side (1082) of the hinge (108) and may be parallel to the longitudinal direction of the third part (1013c), and the cover (107) may be rotatable about the shaft of the hinge (108).

[0107] The above cover (107) may include a coupling portion (1071) that is detachably coupled to the housing (1013) adjacent to the fourth side of the filter (102).

[0108] The filter assembly (100) may further include a flange (1012) that is bent from the housing (1013) and on which a portion of the surface of the filter (102) is positioned, and the cover (107), when coupled to the housing (1013), may press the filter (102) toward the flange (1012).

[0109] The cover (107) may further include a body (1070) facing the other side of the filter (102), and the coupling portion (1071) may be bent from the body (1070) and extend along the fourth side of the filter (102), and may cover a portion of the fourth side.

[0110] The housing (1013) may further include: a first fixing member (1014U) formed in the housing (1013) adjacent to one end of the coupling member (1071); and a second fixing member (1014D) formed in the housing (1013) adjacent to the other end of the coupling member (1071), and the filter assembly (100) may further include: a first fastening member (107F) that couples the one end of the coupling member (1071) to the first fastening member (1014U); and a second fastening member (107F) that couples the other end of the coupling member (1071) to the second fastening member (1014D).

[0111] The filter assembly (100) may further include: a flange (1012) that is bent from the housing (1013) and on which a portion of the one side of the filter (102) is positioned; and a hook (1015) that is bent from the flange (1012) and on which the fourth side of the filter (102) is caught.

[0112] The filter assembly (100) comprises: a plurality of louvers (103) positioned between the hole (13Sh) of the case (10) and the filter (102), spaced apart from each other; a box (1010) in which the louvers (103) are positioned; a first flange (1011) extending from one end of the box (1010) facing the inside of the case (10) to the outside of the box (1010) and intersecting the box (1010); And, it may further include a second flange (1012) extending from the other end of the box (1010) to the outside of the box (1010) and intersecting the box (1010), the first flange (1011) may be coupled to the inner side of the case (10), and the second flange (1012) may be connected to the housing (1013) and the one side of the filter (102) may be located.

[0113] The above filter (102) may include: a HEPA filter (1022) forming the other surface of the filter (102); and a pre-filter (1021) positioned between the HEPA filter (1022) and the plurality of louvers (103).

[0114] The filter assembly (100) may further include: a side gasket (104) sandwiched between the first flange (1011) and the inner side of the case (10); a first gasket (105) sandwiched between the pre-filter (1021) and the second flange (1012); and a second gasket (106) sandwiched between the HEPA filter (1022) and the pre-filter (1021).

[0115] The case (10) may include: a left panel (13L) forming a left side of the case (10); and a right panel (13R) forming a right side of the case (10), and the filter assembly (100) may include: a left filter assembly (100L) mounted on the inside of the left panel (13L); and a right filter assembly (100R) mounted on the inside of the right panel (13R), and the hole (13Sh) of the case (10) may include: a left side hole (13Lh) formed in the left panel (13L) and providing air to the left filter assembly (100L); and a right side hole (13Rh) formed in the right panel (13R) and providing air to the right filter assembly (100R).

[0116] The case (10) may further include a door (13F) that forms the front of the case (10) and is hingedly connected to the left panel (13L) or the right panel (13R), and the fourth side of the filter (102) of each of the left filter assembly (100L) and the right filter assembly (100R) may face forward.

[0117] The above electric vehicle charger (1) may further include a component mounted inside the case (10) and positioned between the left filter assembly (100L) and the right filter assembly (100R).

[0118] The electric vehicle charger (1) may further include a front filter assembly (200) mounted on the rear of the door (13F), and the door (13F) may include a front hole (13Fh) formed in the door (13F) and providing air to the front filter assembly (200).

[0119]

[0120] Any or all of the embodiments of the present disclosure described above are not mutually exclusive or distinct. Any or all of the embodiments of the present disclosure described above may have their respective components or functions combined or used together.

[0121] For example, it means that a configuration A described in a particular embodiment and / or drawing can be combined with a configuration B described in another embodiment and / or drawing. That is, even if a combination between configurations is not directly described, it means that a combination is possible, except in cases where a combination is described as impossible.

[0122] The above detailed description should not be construed as limiting in any respect and should be considered illustrative only. The scope of the present invention should be determined by a reasonable interpretation of the appended claims, and all modifications within the equivalent scope of the present invention are intended to be included within the scope of the present invention.

Claims

1. In electric vehicle chargers, A case having holes through which air passes; and A filter assembly is included that is mounted inside the case, The above filter assembly: A rectangular filter with one side facing the hole of the case; A housing covering the first to third side edges among the first to fourth side edges of the filter; and, An electric vehicle charger comprising a cover covering a portion of the other side of the filter and hingedly connected to a portion of the housing opposite the fourth side of the filter.

2. In paragraph 1, The above housing: A first part extending along the first side of the filter; a second part extending along the second side of the filter and opposite the first part; and a third part extending along the third side of the filter and connecting the first and second parts; The above cover, An electric vehicle charger hingedly connected to the third part above.

3. In paragraph 2, The above filter assembly: Further comprising a hinge, one side of which is coupled to the cover and the other side of which is coupled to the third part; The shaft of the above hinge is Connecting the one side and the other side of the hinge, and being parallel to the longitudinal direction of the third part, The above cover, An electric vehicle charger capable of rotating around the axis of the hinge.

4. In paragraph 1, The above cover: An electric vehicle charger comprising a coupling portion detachably coupled to the housing adjacent to the fourth side of the filter.

5. In paragraph 4, The above filter assembly: further comprising a flange that is bent from the housing and on which a portion of the one surface of the filter is located; The above cover, An electric vehicle charger that, when coupled to the housing, presses the filter toward the flange.

6. In paragraph 4, The above cover: Further comprising a body facing the surface of the filter, The above joint is, An electric vehicle charger that is bent from the body, extends along the fourth side of the filter, and covers a portion of the fourth side.

7. In paragraph 6, The above housing: A first fixing member formed in the housing adjacent to one end of the above-described joint; and Further comprising a second fixing part formed in the housing adjacent to the other end of the above-mentioned connecting part, The above filter assembly: A first fastening member that connects the above end of the above-mentioned connecting portion to the above-mentioned first fixing portion; and, An electric vehicle charger further comprising a second fastening member that fastens the other end of the above-mentioned connecting portion to the second fixing portion.

8. In paragraph 6, The above filter assembly: a flange bent from said housing and positioned on said one side of said filter; and An electric vehicle charger further comprising a hook that is bent from the flange and on which the fourth side of the filter is caught.

9. In paragraph 1, The above filter assembly: A plurality of louvers positioned between the hole and the filter of the case and spaced apart from each other; The box in which the above louvers are located; A first flange extending from one end of the box facing the inside of the case to the outside of the box and intersecting the box; and Further comprising a second flange extending from the other end of the box to the outside of the box and intersecting the box, The above first flange, is coupled to the inner side of the above case, The above second flange, An electric vehicle charger connected to the above housing, wherein the above one side of the filter is located.

10. In paragraph 9, The above filter is: A HEPA filter forming the surface of the filter; and An electric vehicle charger including a pre-filter positioned between the HEPA filter and the plurality of louvers.

11. In paragraph 10, The above filter assembly: A side gasket sandwiched between the first flange and the inner side of the case; A first gasket sandwiched between the above prefilter and the second flange; and An electric vehicle charger further comprising a second gasket sandwiched between the HEPA filter and the pre-filter.

12. In paragraph 1, The above case is: A left panel forming the left side of the case; and including a right panel forming the right side of the case; The above filter assembly: A left filter assembly mounted on the inside of the left panel; and Includes a right filter assembly mounted on the inside of the right panel, The above hole of the above case: A left side hole formed on the left panel and providing air to the left filter assembly; and An electric vehicle charger formed on the right panel and including a right side hole for supplying air to the right filter assembly.

13. In paragraph 12, The above case is: forming the front of the case, and further comprising a door hingedly connected to the left panel or the right panel; The fourth side of each of the filters of the left filter assembly and the right filter assembly is a forward-facing electric vehicle charger.

14. In paragraph 13, An electric vehicle charger further comprising a component mounted inside the case and positioned between the left filter assembly and the right filter assembly.

15. In paragraph 13, Further comprising a front filter assembly mounted on the rear of the door; The above door: An electric vehicle charger comprising a front hole formed in the door and providing air to the front filter assembly.

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