Charger used for Electrical vehicle

Abstract

An electric vehicle charger is provided, comprising: a charger body formed in a housing shape with an open top and an internal receiving space, and having an insertion opening on one side communicating with said receiving space; a cable inserted through said insertion opening and coupled to the charger body; a sealing member coupled to said cable, inserted through said insertion opening together with said cable, sealing said insertion opening and coupled to said charger body; and a charger cover coupled to the top of said charger body and sealing said receiving space; wherein the sealing member has a recessed anti-detachment groove formed on its outer surface facing the top of said charger body, and the charger cover has an anti-detachment member protruding from its lower surface to be inserted into said anti-detachment groove. Accordingly, it is possible to prevent the cable from rotating or separating in the longitudinal direction during use.

Description

Technology Field

[0001] The present invention relates to a charger for an electric vehicle, and more specifically, to a charger for an electric vehicle equipped with a portable in-cable control device (ICCB). Background Technology

[0002] Unless otherwise indicated in this specification, the contents described in this identification item are not prior art for the claims of this application, and are not recognized as prior art simply because they are described in this identification item.

[0003] With the recent tightening of environmental regulations, the demand for eco-friendly electric vehicles (EVs) is increasing. EV charging systems can be broadly classified according to charging methods, connection methods, and communication methods. Charging methods can be categorized into conductive charging, inductive charging, and battery swapping. Conductive charging is a method in which charging is performed through electrical connection, and includes methods using AC charging stands and methods using DC charging devices.

[0004] An AC charging stand is not a charging device itself, but rather a power supply unit that provides AC power for charging; the actual charging is handled by the on-board charger inside the electric vehicle. Both the input and output of such AC charging stands are AC power at commercial frequency. Furthermore, AC charging stands are broadly classified into freestanding charging stands and portable in-cable control boxes (ICCBs).

[0005] Such an in-cable control device is a portable electric vehicle charger designed to ensure the safety required when charging an electric vehicle with household power, and charging using this device corresponds to a slow charging method that takes about 7 to 8 hours to reach full charge.

[0006] Meanwhile, Korean Patent Publication No. 10-2011-0043731 (April 27, 2011) discloses an electric vehicle charger using an ICCB. However, such an electric vehicle charger is equipped with a sealing structure to prevent moisture ingress between the charger body and the cable, but there is a problem in that the structure is complex and the cost for this increases.

[0007] In addition, there is a problem where the cable detaches from the charger body due to repeated use. Prior art literature

[0008] 1. Republic of Korea Published Patent No. 10-2011-0043731 (April 27, 2011) The problem to be solved

[0009] The embodiment of the present invention has been devised to solve the above-mentioned problems and aims to provide an electric vehicle charger that uses a simple structure to not only prevent moisture from entering between the charger body and the cable, but also prevents the cable from becoming detached from the charger body. means of solving the problem

[0010] An embodiment of the present invention provides a charger for an electric vehicle, comprising: a charger body formed in a housing shape with an open top and an internal receiving space, and having an insertion opening on one side communicating with the receiving space; a cable inserted through the insertion opening and coupled to the charger body; a sealing member coupled to the cable, inserted through the insertion opening together with the cable, sealing the insertion opening, and coupled to the charger body; and a charger cover coupled to the top of the charger body and sealing the receiving space; wherein the sealing member has a recessed anti-detachment groove formed on an outer surface facing the top of the charger body, and the charger cover has an anti-detachment member protruding from its lower surface to be inserted into the anti-detachment groove.

[0011] It is preferable that the sealing member is fixed by insert injection molding into the cable.

[0012] The sealing member comprises: an insertion part inserted into the interior of the receiving space; a sealing part mounted on the wall of the charger body; and a sealing part in close contact with the outer surface of the wall of the charger body; wherein the insertion part is formed such that its diameter increases toward the sealing part.

[0013] It is preferable that the above sealing portion is formed by repeating bone portions and mountain portions.

[0014] A groove for receiving a seal is formed by being recessed on the outer surface of the above wall to accommodate the seal, and it is effective for the seal to be seated in the groove for receiving a seal.

[0015] The above-mentioned groove for receiving the sealing part has a groove for preventing misassembly formed therein to prevent misassembly, and the sealing part preferably further includes a protrusion for preventing misassembly formed to be fitted into the groove for preventing misassembly. Effects of the invention

[0016] According to the means for solving the problem of the present invention as described above, various effects including the following can be expected. However, the present invention is not required to exhibit all of the following effects to be valid.

[0017] In an electric vehicle charger, a sealing member is fixed to the cable, and the sealing member is secured by an anti-detachment member of the charger cover, thereby preventing the cable from rotating or separating in the longitudinal direction during use.

[0018] In addition, due to the sealing and airtight sections, the waterproofing effect is excellent.

[0019] In addition, due to the anti-misassembly protrusions and grooves, there is an advantage in that the direction of the anti-detachment groove can be easily aligned during assembly. Brief explanation of the drawing

[0020] FIG. 1 is a diagram of an electric vehicle charger according to an embodiment of the present invention. FIG. 2 is a perspective view of FIG. 1 with the charger cover removed. FIG. 3 is an exploded perspective view of FIG. 1. FIG. 4 is an exploded view of the charger body and charger cover of FIG. 1. FIG. 5 is an enlarged perspective view of section V of FIG. 4. FIG. 6 is a perspective view of the sealing member of FIG. 3. FIG. 7 is a plan view of FIG. 6 FIG. 8 is a cross-sectional view along the cutting line VIII-VIII of FIG. 1. FIGS. 9 to 11 are perspective views illustrating, in steps, an assembly method for an electric vehicle charger according to an embodiment of the present invention. Specific details for implementing the invention

[0021] Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings.

[0022] FIG. 1 is a perspective view of an electric vehicle charger according to an embodiment of the present invention, FIG. 2 is a perspective view of FIG. 1 with the charger cover removed, FIG. 3 is an exploded perspective view of FIG. 1, FIG. 4 is an exploded perspective view of the charger body and charger cover of FIG. 1, FIG. 5 is an enlarged perspective view of section V of FIG. 4, FIG. 6 is a perspective view of a sealing member of FIG. 3, FIG. 7 is a plan view of FIG. 6, and FIG. 8 is a cross-sectional view along the cutting line VIII-VIII of FIG. 1.

[0023] As illustrated in these drawings, an electric vehicle charger according to one embodiment of the present invention comprises: a charger body (100) formed in a housing shape with an open top and having an internal receiving space (111), and having an insertion opening (121) on one side communicating with the receiving space (111); a cable (200) inserted through the insertion opening (121) and coupled to the charger body (100); a sealing member (300) coupled to the cable (200), inserted through the insertion opening (121) together with the cable (200), sealing the insertion opening (121), and coupled to the charger body (100); and a charger cover (130) coupled to the top of the charger body (100) and sealing the receiving space (111).

[0024] An electric vehicle charger according to one embodiment of the present invention relates to an in-cable control device (ICCB).

[0025] A cable (200) connected to a charging outlet is attached to one side of the charger body (100), and a cable (not shown) for connecting to a household power outlet is attached to the other end. Additionally, since various electrical components embedded in the charger body (100) are not related to the features of the present invention, detailed descriptions and drawings are omitted.

[0026] The charger body (100) is formed in a cuboid shape, and a receiving space (111) is formed on the upper side. A connecting part is formed on the left outer surface for connecting a cable to a power outlet, and an insertion opening (121) is formed through the right outer wall surface (112). On the outer wall surface (112), a sealing part receiving groove (122) is formed in a circular shape to accommodate a sealing part (330), and a misassembly prevention groove (123) is formed in the sealing part receiving groove (122) to prevent misassembly. That is, a sealing part receiving groove (122) is formed in a circular shape to surround the insertion opening (121) on the right outer wall surface (112) through which the insertion opening (121) is formed, and a misassembly prevention groove (123) is formed below the sealing part receiving groove (122).

[0027] The charger cover (130) is formed in a plate shape and is used to seal the upper surface of the charger body (100). The charger cover (130) is fixed to the charger body (100) by means such as bolts. The charger cover (130) includes a detachment prevention member (131) protruding from the lower surface to be inserted into a detachment prevention groove (311). Two detachment prevention members (131) protrude downward in a bar shape.

[0028] It is preferable that the sealing member (300) be fixed by insert injection molding into the cable. However, it may also be fixed by other methods such as bonding or forcibly clamping. The sealing member (300) includes an insertion part (310) that is inserted into the receiving space (111), a sealing part (320) that is mounted on the wall of the charger body (100), and a sealing part (330) that is in close contact with the outer surface of the wall of the charger body (100).

[0029] The insertion portion (310) is formed so that its diameter increases toward the sealing portion (320). That is, it is formed in a conical shape so that its diameter becomes largest at the sealing portion (320). In the insertion portion (310), an anti-detachment groove (311) is formed in the outer surface facing the upper part of the charger body (100). That is, the anti-detachment groove (311) is formed through so that the anti-detachment member (131) can be inserted.

[0030] The sealing portion (320) is a portion that engages with the inner circumferential cross-section of the wall forming the insertion opening (121), and is formed by repeating grooves and peaks, so as to be sealed with the inner circumferential cross-section of the wall of the charger body (100), thereby preventing moisture from penetrating.

[0031] The sealing portion (330) is formed with a larger diameter than the sealing portion (320) and is formed to be seated in the sealing portion receiving groove (122). It also includes a misassembly prevention protrusion (332) formed to be fitted into the misassembly prevention groove (123). That is, the sealing portion (330) is formed in a shape that fits the shape of the sealing portion receiving groove (122) and the misassembly prevention groove (123).

[0032] Hereinafter, the assembly method of the electric vehicle charger of the present invention is described.

[0033] FIGS. 9 to 11 are perspective views illustrating, step-by-step, an assembly method for an electric vehicle charger according to an embodiment of the present invention.

[0034] As illustrated in FIG. 9, a cable (200) with a sealing member (300) fixed thereto is prepared. Then, as shown in FIG. 10, one end of the cable (200) is inserted into the insertion opening (121), and when the cable (200) is pulled, the front end of the insertion part (310) passes through the insertion opening (121) and is joined as shown in FIG. 11. At this time, the sealing part (320) is positioned on the inner circumferential cross-section of the wall of the insertion opening (121), and the sealing part (330) is seated in the sealing part receiving groove (122). In addition, the misassembly prevention protrusion (332) is seated in the misassembly prevention groove (123).

[0035] Next, the charger cover (130) is connected from the top to the bottom so that the anti-detachment member (131) is fitted into the anti-detachment groove (311), and then the charger cover (130) is connected to the charger body (100) with bolts or the like.

[0036] As described above, in an electric vehicle charger of one embodiment of the present invention, a sealing member (300) is fixed to a cable (200), and the sealing member (300) is fixed by a detachment prevention member (131) of a charger cover (130), so that the cable (200) can be prevented from rotating or separating in the longitudinal direction during use.

[0037] In addition, due to the sealing part (320) and the sealing part (330), the waterproofing effect is excellent.

[0038] In addition, due to the anti-misassembly protrusion (332) and the anti-misassembly groove (123), there is an advantage that the direction of the anti-detachment groove (311) can be easily aligned during assembly.

[0039] Although preferred embodiments of the present invention have been described illustratively above, the scope of the present invention is not limited to such specific embodiments and can be appropriately modified within the scope described in the claims. Explanation of the symbols

[0040] 100: Charger body 111: Reception space 121: Insertion 122: Sealable groove 123: Groove to prevent misassembly 130: Charger Cover 200: Cable 300: Sealing member 310: Insert 311: Anti-slip groove 320: Sealing part 330: Sealed part

Claims

Claim 1 A charger body (100) formed in a housing shape with an open top and having an internal receiving space (111), and having an insertion opening (121) on one side communicating with the receiving space (111); a cable (200) inserted through the insertion opening (121) and coupled to the charger body (100); a sealing member (300) fixed to the cable (200), inserted through the insertion opening (121) together with the cable (200), sealing the insertion opening (121), and coupled to the charger body (100); and a charger cover (130) coupled to the top of the charger body (100) and sealing the receiving space (111); wherein the sealing member (300) has an anti-detachment groove (311) formed vertically through the outer surface facing the top of the charger body (100), and the charger cover (130) is inserted into the anti-detachment groove (311) on its lower surface. It includes a bar-shaped anti-detachment member (131) protruding downward; and the sealing member (300) comprises: an insertion part (310) inserted into the receiving space (111); and a sealing part (320) mounted on the wall of the charger body (100). The electric vehicle charger comprises: a sealing portion (330) that is in close contact with the outer surface of the wall of the charger body (100); wherein the insertion portion (310) is formed such that its diameter increases toward the sealing portion (320); wherein a sealing portion receiving groove (122) is formed in the outer surface of the wall (112) to accommodate the sealing portion (330); wherein the sealing portion (330) is seated in the sealing portion receiving groove (122); wherein a misassembly prevention groove (123) is formed in the sealing portion receiving groove (122) to prevent misassembly; and wherein the sealing portion (330) further comprises a misassembly prevention protrusion (332) formed to be fitted into the misassembly prevention groove (123). Claim 2 An electric vehicle charger according to claim 1, characterized in that the sealing member (300) is fixed by insert injection molding into the cable. Claim 3 delete Claim 4 An electric vehicle charger according to claim 1, wherein the sealing portion (320) is formed by repeating valleys and peaks. Claim 5 delete Claim 6 delete

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