Power apparatus

Abstract

The present invention may provide a power device comprising: a housing having a hole formed therein; a substrate fixed to the housing; a plug positioned in the hole having a first groove formed therein; and a fastening member positioned in the first groove, wherein the housing includes a first screw thread formed on the inner surface of the hole, and the plug includes a second screw thread formed on the inner surface of the first groove and formed continuously with the first screw thread, and the fastening member penetrates the substrate and is fastened together with the first screw thread and the second screw thread.

Description

Technology Field

[0001] The example relates to a power device. Background Technology

[0002] The power device can supply data and power. The power device can be used to directly supply data and power to access points (APs), such as internet phones, network cameras, and wireless LANs.

[0003] Such a power device may include a housing, a circuit board located inside the housing, and a plug connected to the circuit board. If the power device can be directly connected to an outlet, the plug of the power device is inserted into the outlet.

[0004] Plugs can be electrically connected to the circuit board via soldering. However, when connecting plugs to the board using soldering, the process becomes complex and time-consuming, and there is a high probability of defects occurring in the board's components due to contact issues during the soldering process. The problem to be solved

[0005] Accordingly, the embodiment aims to solve the above-mentioned problems by providing a power device that can assemble a plug and a circuit board using a separate fastening member without using soldering when assembling the plug and the circuit board.

[0006] The problems that the embodiments aim to solve are not limited to those mentioned above, and other problems not mentioned herein will be clearly understood by those skilled in the art from the description below. means of solving the problem

[0007] An embodiment for achieving the above objective may provide a power device comprising a housing having a hole formed therein, a substrate fixed to the housing, a plug having a first groove formed therein located in the hole, and a fastening member located in the first groove, wherein the housing includes a first screw thread formed on the inner surface of the hole, the plug includes a second screw thread formed on the inner surface of the first groove and formed continuously with the first screw thread, and the fastening member penetrates the substrate and is fastened together with the first screw thread and the second screw thread.

[0008] The above hole includes a first region where the fastening member is located and a plurality of second regions where the plug is located, and the first groove of the plug can be aligned with the first region.

[0009] The above plug includes a first end and a second end formed with the first groove in between, and the first end and the second end may each be located in the plurality of second regions.

[0010] The first screw thread is formed in the first region, and the second screw thread can be formed in the first end and the second end.

[0011] The horizontal separation distance between the first end and the second end may be smaller than the outer diameter of the body of the fastening member.

[0012] The above substrate includes a first conductive portion formed on one side and a second conductive portion formed on the other side that is electrically connected to the first conductive portion, and the first conductive portion may contact the fastening member and the second conductive portion may contact the plug.

[0013] The head of the above-mentioned fastening member contacts the first conductive part, and the body of the above-mentioned fastening member extending from the head can contact the plug.

[0014] The above plug includes a first end and a second end formed with the first groove in between, and the first end and the second end can come into contact with the second conductive part. Effects of the invention

[0015] According to the embodiment, by assembling the plug to the substrate through a rotary fastening member without using soldering, there is an advantage in that the process is rapid and simplified and defects can be reduced.

[0016] According to the embodiment, since the housing is screw-fastened together with the plug, there is an advantage in that the fastening member is prevented from loosening while maintaining electrical contact with the plug, thereby securing the fastening force between the plug and the substrate.

[0017] According to an embodiment, a plug is electrically in contact with one side of a substrate, and a fastening member connected to the plug on the other side of the substrate is electrically in contact with the substrate. Thus, even if the contact between the plug and the substrate is broken, there is an advantage in that the substrate and the plug maintain electrical contact through the fastening member. Brief explanation of the drawing

[0018] FIG. 1 is a drawing illustrating a system including a power device according to an embodiment. FIG. 2 is a perspective view illustrating a power device according to an embodiment, FIG. 3 is an exploded view of the power device illustrated in FIG. 2, FIG. 4 is a drawing illustrating a housing including a hole, FIG. 5 is a drawing showing a hole in the housing, FIG. 6 is a drawing showing a substrate, FIG. 7 is a side cross-sectional view of a substrate around a through-hole, Figure 8 is a drawing illustrating a plug, FIG. 9 is a drawing illustrating the process of a fastening member, a plug, and a housing being fastened to a hole. FIG. 10 is a drawing showing a hole in a housing where a plug is located. FIG. 11 is a drawing illustrating the first screw thread and the second screw thread, FIG. 12 is a side cross-sectional view based on AA of FIG. 2, FIG. 13 is a side cross-sectional view based on BB of FIG. 2, FIG. 14 is a diagram illustrating the conductive state of the substrate, the plug, and the fastening bolt. Specific details for implementing the invention

[0019] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings.

[0020] However, the technical concept of the present invention is not limited to some of the described embodiments but can be implemented in various different forms, and within the scope of the technical concept of the present invention, one or more of the components among the embodiments may be selectively combined or substituted.

[0021] In addition, terms used in the embodiments of the present invention (including technical and scientific terms) may be interpreted in a sense that is generally understood by those skilled in the art to which the present invention belongs, unless explicitly and specifically defined otherwise. Terms that are commonly used, such as terms defined in advance, may be interpreted in consideration of their meaning in the context of the relevant technology.

[0022] Furthermore, the terms used in the embodiments of the present invention are for the purpose of describing the embodiments and are not intended to limit the present invention.

[0023] In this specification, the singular form may include the plural form unless specifically stated otherwise in the text, and when described as “at least one of A and B, C (or more than one of them),” it may include one or more of all combinations that can be formed from A, B, and C.

[0024] In addition, terms such as first, second, A, B, (a), (b), etc. may be used when describing the components of the embodiments of the present invention.

[0025] These terms are intended merely to distinguish a component from other components and are not limited by the nature, order, sequence, etc., of the said component.

[0026] And, where it is stated that a component is 'connected', 'combined', or 'joined' to another component, this may include not only cases where the component is directly connected, combined, or joined to the other component, but also cases where it is 'connected', 'combined', or 'joined' due to another component located between the component and the other component.

[0027] Furthermore, when described as being formed or placed on the “top or bottom” of each component, “top or bottom” includes not only cases where two components are in direct contact with each other, but also cases where one or more other components are formed or placed between the two components. Additionally, when expressed as “top or bottom,” it may include the meaning of a downward direction as well as an upward direction relative to a single component.

[0028] Power devices can be directly connected to an outlet via a plug. The outlet can be installed indoors or outdoors. While soldering is generally used to electrically connect the plug to the circuit board, the soldering process is not easy given the limited space inside the power device. Since a portion of the plug is exposed outside the power device's housing while another portion must be soldered inside the housing, the process is inevitably complex and time-consuming.

[0029] The power device according to the embodiment is a device that, in order to fundamentally solve this problem, completely changes the assembly method of the substrate and the plug, and simultaneously secures the electrical connection between the substrate and the plug by fastening the substrate, the plug, and the housing through a fastening member.

[0030] FIG. 1 is a drawing illustrating a system including a power device (10) according to an embodiment.

[0031] Referring to FIG. 1, the power device (10) according to the embodiment may be a POE and may be connected to an indoor power source to provide power to multiple devices and simultaneously transmit / receive data. That is, the power device (10) may receive power from an indoor power source and transmit data along with power to multiple devices through a cable. At this time, the power device (10) may have a separate cable for transmitting / receiving data connected to a network and may transmit / receive data wirelessly. The devices (20) located indoors may be APs, lights, speakers, telephones, IoT devices, etc., and the devices (30) located outdoors may be IP cameras, lights, etc. Since the installation location of such a power device (10) is not restricted by the location of the power outlet for the devices (20, 30), the risk of noise or power supply failure can be reduced.

[0032] FIG. 2 is a perspective view showing a power device (10) according to an embodiment, and FIG. 3 is an exploded view of the power device (10) shown in FIG. 2.

[0033] Referring to FIGS. 2 and 3, a power device (10) according to an embodiment may include a housing (100), a substrate (200), a plug (300), and a fastening member (400). The housing (100) includes a hole (110). The hole (110) connects the inside and outside of the housing (100). The substrate (200) may be located inside the housing (100). The plug (300) enters the inside of the housing (100) through the hole (110) and is connected to the substrate (200). For example, two holes (110) may be provided, and two plugs (300) may be located in the holes (110). The ends of the plugs (300) placed in the holes (110) are exposed outside the housing (100). The plug (300) and the housing (100) may be integrally molded through insert injection. The fastening member (400) penetrates the substrate (200) and is fastened to the plug (300) to fix the plug (300) to the substrate (200). Additionally, the fastening member (400) penetrates the substrate (200) and is fastened to the hole (110) of the housing (100) to fix the substrate (200) to the housing (100). The power device (10) according to this embodiment combines the substrate (200) and the plug (300) through the fastening member (400).

[0034] FIG. 4 is a drawing showing a housing (100) including a hole (110), and FIG. 5 is a drawing showing the hole (110) of the housing (100).

[0035] Referring to FIGS. 4 and 5, the housing (100) may include a plurality of holes (110). The holes (110) may be formed during the insert injection process with the plug (300). The housing (100) may also include a boss (111) formed along the circumference of the holes (110). The holes (110) are where the plug (300) and the fastening member (400) are located.

[0036] The hole (110) may be formed to have an overall rectangular shape. However, it is not limited thereto, and the shape of the hole (100) may change depending on the shape of the plug (300). The hole (110) may be divided into a first area (A1) and a second area (A2). The first area (A1) is the area where the fastening member (400) is located. The second area (A2) is the area where the plug (300) is located. The first area (A1) may be located between two second areas (A2) that are spaced apart from each other. The first area (A1) may be located in the center of the hole (110). The first area (A1) is the area where the fastening member (400) is rotatably fastened to form a first screw thread (SW1 in FIG. 11). The inner wall of the first area (A1) may be formed as a curved surface, and the second area (A2) may be formed in a flat shape.

[0037] FIG. 6 is a drawing showing a substrate (200), and FIG. 7 is a side cross-sectional view of the substrate (200) around the through-hole (TH).

[0038] Referring to FIGS. 6 and 7, the substrate (200) may include a through-hole (TH) through which a fastening member (400) passes. Plating may be applied inside the through-hole (TH) to electrically connect one side of the substrate (200) and the other side. Additionally, the substrate (200) may include a first conductive part (210) and a second conductive part (220). The first conductive part (210) may be formed on one side of the substrate (200), and the second conductive part (220) may be formed on the other side of the substrate (200). The first conductive part (210) and the second conductive part (220) may each be formed around the through-hole (TH) and electrically connected through the through-hole (TH). The first conductive part (210) contacts the fastening member (400), and the second conductive part (220) contacts the plug (300).

[0039] Figure 8 is a drawing showing a plug (300).

[0040] Referring to FIG. 8, the plug (300) may have a long bar shape with a rectangular cross-section overall. The plug (300) includes a first groove (330) formed concavely at the end. The first groove (330) is an area where the fastening member (400) is fastened. The first groove (330) may include two planar inner walls positioned facing each other. The fastening member (400) is fastened to these two inner walls to form a second screw thread (SW2 in FIG. 11). The plug (300) may also include a first end (310) and a second end (320). The first end (310) and the second end (320) may be positioned with the first groove (330) in between.

[0041] The edge formed by the end surface of the first end (310) and the first groove (330) is formed as a slanted first temper surface (CF1), and the edge formed by the end surface of the second end (320) and the first groove (330) is formed as a slanted second temper surface (CF2). As the entrance of the first groove (330) is expanded by the first temper surface (CF1) and the second temper surface (CF2), when the fastening member (400) enters the entrance of the first groove (330), the fastening member (400) is guided so that it does not get caught on the end surface of the first end (310) and the end surface of the second end (320). With the plug (300) fixed to the housing (100), the first groove (330) is aligned with the first region (A1) of the hole (110).

[0042] Meanwhile, the plug (300) may include a plurality of second grooves (340). The second grooves (340) may be formed on the outer surface of the plug (300). Some of the plurality of second grooves (340) may be formed on the outer surface of the first end (310) or the outer surface of the second end (320). The second grooves (340) are intended to increase the bonding strength between the housing (100) and the plug (300). When insert injection molding of the plug (300) and the housing (100), a mold material is injected into the second grooves (340) to form a protrusion (120 in FIG. 13) of the housing (100) that engages with the second grooves (340), thereby increasing the bonding strength between the housing (100) and the plug (300).

[0043] FIG. 9 is a drawing illustrating the process of a fastening member (400) being fastened to a plug (300) and a housing (100) in a hole (110), and FIG. 10 is a drawing illustrating a hole (110) of a housing (100) where the plug (300) is located.

[0044] Referring to FIGS. 9 and 10, the fastening member (400) can penetrate the substrate (200) and be fastened to the hole (110) by rotation. The fastening member (400) may be a tapped screw that forms threads during the rotational fastening process. The fastening member (400) is fastened by forming threads on the inner wall of the hole (110) of the housing (100) and the inner wall of the first groove (330) of the plug (300). Such a fastening member (400) may include a head (410) and a body (420) extending from the head (410). Threads may be formed on the outer surface of the body (420). In order to form a second screw thread (SW2) as the fastening member (400) is rotated and fastened, the horizontal distance (L) between the first end (310) and the second end (320) may be smaller than the outer diameter (D) of the body (420) of the fastening member (400).

[0045] FIG. 11 is a drawing illustrating the first screw thread (SW1) and the second screw thread (SW2).

[0046] Referring to FIGS. 9 to 11, the fastening member (400) can be fastened between the first end (310) and the second end (320) of the plug (300) located in the hole (110). The fastening member (400) is rotatably fastened by forming a first screw thread (SW1) in the hole (110) of the housing (100) and forming a second screw thread (SW2) on the first end (310) and the second end (320) of the plug (300), respectively. Thus, the first screw thread (SW1) and the second screw thread (SW2) are formed continuously. As a result, the fastening member (400) is fastened to the plug (300) and the housing (100) together.

[0047] FIG. 12 is a side cross-sectional view based on AA of FIG. 2.

[0048] Referring to FIG. 12, the fastening member (400) penetrates the substrate (200) and is rotatably fastened to the plug (300) while forming a second screw thread (SW2) on the plug (300). As the fastening member (400) is rotatably fastened to the plug (300), the substrate (200) is tightened and fixed to the plug (300). The head (410) of the fastening member (400) contacts the substrate (200), and the end of the plug (300) contacts the substrate (200). The boss portion (111) of the housing (100) formed around the hole (110) may include an inclined surface (111a)) in the upper portion in the area that contacts the plug (300). The inclined surface (111a) may be an area intentionally created during the process of insert injection molding the housing (100) with the plug (300) so that the molded part does not go up the plug (300) and the boss portion (111) is not formed higher than the top of the plug (300).

[0049] FIG. 13 is a side cross-sectional view based on BB of FIG. 2.

[0050] Referring to FIG. 13, the fastening member (400) penetrates the substrate (200) and is fastened to the plug (300), thereby forming a first screw thread (SW1) in the hole (110) of the housing (100) and being rotatably fastened to the hole (110) of the housing (100). As the fastening member (400) is rotatably fastened to the hole (110), the substrate (200) is tightened and fixed to the housing (100).

[0051] FIG. 14 is a drawing illustrating the conductive state of a substrate (200), a plug (300), and a fastening bolt.

[0052] Referring to FIG. 14, when the fastening member (400) is fastened to the hole (110) of the plug (300) and the housing (100), the head (410) of the fastening member (400) comes into contact with the first conductive portion (210) of the substrate (200). Accordingly, a conductive line consisting of the plug (300) - fastening member (400) - first conductive portion (210) is formed. Then, when the fastening member (400) is fastened to the hole (110) of the plug (300) and the housing (100), the end surface of the plug (300) comes into contact with the second conductive portion (220) of the substrate (200). Accordingly, another conductive line consisting of the plug (300) - second conductive portion (220) is formed. As such, since the power device (10) according to the embodiment forms two conductive lines, even if the end surface of the plug (300) is separated from the second conductive part (220), current can be transmitted through the conductive line connecting the plug (300) - the fastening member (400) - the first conductive part (210).

[0053] In the foregoing, although all components constituting the embodiments of the present invention have been described as being combined or operating together, the present invention is not necessarily limited to such embodiments. That is, within the scope of the purpose of the present invention, all such components may be selectively combined and operated in one or more ways. Furthermore, terms such as "include," "constitute," or "have" described above, unless specifically stated otherwise, mean that the relevant component may be inherent; thus, they should be interpreted as allowing for the inclusion of additional components rather than excluding other components. All terms, including technical or scientific terms, have the same meaning as generally understood by those skilled in the art to which the present invention pertains, unless otherwise defined. Terms commonly used, such as those defined in advance, should be interpreted in accordance with their meaning in the context of the relevant technology and should not be interpreted in an ideal or overly formal sense unless explicitly defined in the present invention.

[0054] The foregoing description is merely an illustrative explanation of the technical concept of the present invention, and those skilled in the art to which the present invention pertains will be able to make various modifications and variations within the scope of the essential characteristics of the present invention. Accordingly, the embodiments disclosed in the present invention are intended to explain, not limit, the technical concept of the present invention, and the scope of the technical concept of the present invention is not limited by such embodiments. The scope of protection of the present invention shall be interpreted by the claims below, and all technical concepts within an equivalent scope shall be interpreted as being included within the scope of rights of the present invention.

[0055] The present invention can be used in various devices, such as vehicles or home appliances. Explanation of the symbols

[0056] 100: Housing 110: Hall 120: Protrusion 200: Substrate 210: First Challenge Division 220: Second Challenge Part 300: Plug 310: First end 320: Second section 330: 1st Home 340: 2nd Home 400: Fastening member SW1: 1st thread SW2: Second thread TH: Through hole A1: Area 1 A2: Area 2 CF1: 1st Temper Surface CF2: Second Temper surface

Claims

Claim 1 A power device comprising: a housing having a hole formed therein; a substrate fixed to the housing; a plug having a first groove formed therein located in the hole; and a fastening member located in the first groove, wherein the housing includes a first screw thread formed on the inner surface of the hole, and the plug includes a second screw thread formed on the inner surface of the first groove and formed continuously with the first screw thread, and the fastening member penetrates the substrate and is fastened together with the first screw thread and the second screw thread. Claim 2 A power device according to claim 1, wherein the hole comprises a first region where the fastening member is located and a plurality of second regions where the plug is located, and the first groove of the plug is aligned with the first region. Claim 3 In claim 2, the plug comprises a first end and a second end formed with the first groove in between, and the first end and the second end are each located in the plurality of second regions. Claim 4 A power device according to claim 3, wherein the first screw thread is formed in the first region and the second screw thread is formed in the first end and the second end. Claim 5 In claim 3, the horizontal separation distance between the first end and the second end is smaller than the outer diameter of the body of the fastening member. Claim 6 A power device according to any one of claims 1 to 5, wherein the substrate comprises a first conductive portion formed on one surface and a second conductive portion formed on the other surface that is electrically connected to the first conductive portion, the first conductive portion contacts the fastening member, and the second conductive portion contacts the plug. Claim 7 A power device according to claim 6, wherein the head of the fastening member contacts the first conductive part, and the body of the fastening member extending from the head contacts the plug. Claim 8 In claim 6, the plug comprises a first end and a second end formed with the first groove in between, and the first end and the second end are in contact with the second conductive part.

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