Electronic device

Abstract

This electronic device comprises: a housing having a space therein and including a hole; and a membrane disposed to cover the hole, wherein a membrane coupling part to which the membrane couples is disposed on the inner surface of the housing, and the membrane coupling part comprises a side wall, a coupling recess disposed to the inside of the side wall, and guide protrusions protruding inward from the inner surface of the side wall and coming in contact with the outer surface of the membrane.

Description

electronic devices

[0001] This embodiment relates to an electronic device.

[0002]

[0003] The controller mounted on the vehicle performs functions such as vehicle control, motor control, and charging control, and in particular, the motor controller controls various actuators according to preset control logic.

[0004] Recently, vehicles are increasingly using high-voltage electrical components, such as electric motors, inverters, controllers, and high-voltage batteries. These components generate heat during operation, so membranes are installed in the housings of the electronic devices to dissipate the heat and ensure ventilation.

[0005] Specifically, the housing may include a hole penetrating from the outer surface to the inner surface, and a membrane covering the hole may be used to prevent moisture and foreign substances from entering, while also providing ventilation to the outside.

[0006] However, if a misalignment of the membrane arrangement occurs in the setting area within the housing, it may result in fatal consequences due to loss of waterproofing and dustproofing functions.

[0007]

[0008] The present invention provides an electronic device capable of firmly maintaining the alignment and alignment state of a membrane within a housing.

[0009]

[0010] An electronic device according to the present embodiment comprises a housing having a space formed therein and including a hole; and a membrane arranged to cover the hole, wherein a membrane coupling portion to which the membrane is coupled is arranged on an inner surface of the housing, and the membrane coupling portion includes a side wall, a coupling groove arranged on an inner side of the side wall, and a guide protrusion protruding inward from the inner surface of the side wall and contacting an outer surface of the membrane.

[0011] The above guide protrusions may be provided in multiple numbers and arranged along the circumferential direction of the above joining groove.

[0012] The inner surface of the guide protrusion facing the membrane may have a sloped shape such that the closer it gets to the bottom surface of the coupling groove, the closer the distance to the membrane becomes.

[0013] The above guide protrusion can be arranged to be inclined so as to form a predetermined angle with respect to an imaginary line (l) perpendicular to the floor surface.

[0014] The above guide protrusion and the above virtual line (l) can form an angle of 1 degree or more and 3 degrees or less.

[0015] The above hole is arranged in the center of the bottom surface of the above joining groove and can overlap with the membrane.

[0016] A rib having a shape that protrudes more than other areas is arranged on the inner surface of the housing, and the rib can be connected to the side wall.

[0017] The above guide protrusion includes a straight portion and an inclined portion arranged below the straight portion, and the cross-sectional area of ​​the coupling groove within the straight portion is constant, and the cross-sectional area of ​​the coupling groove within the inclined portion may increase as it gets closer to the bottom surface.

[0018] The above guide protrusion includes a first inclined portion and a second inclined portion arranged below the first inclined portion, and the cross-sectional area of ​​the coupling groove within the first inclined portion may decrease as it gets closer to the floor surface, and the cross-sectional area of ​​the coupling groove within the second inclined portion may increase as it gets closer to the floor surface.

[0019] The housing may include a lower plate and a side plate extending upward from an edge of the lower plate, the membrane joint and the hole may be arranged in the lower plate, and the membrane joint may include a connecting portion connecting the side plate and the side wall.

[0020]

[0021] This embodiment has the advantage of being able to precisely control the position between the membrane and the hole through the alignment structure of the membrane within the joining groove using the guide protrusion.

[0022] Additionally, due to the inclined structure of the guide protrusion, there is an advantage in that the bonding force with the membrane can be maintained more firmly.

[0023]

[0024] Figure 1 is a perspective view of an electronic device according to an embodiment of the present invention.

[0025] Figure 2 is a drawing showing an enlarged area of ​​Figure 1.

[0026] Figure 3 is a drawing showing the membrane separated from Figure 2.

[0027] Figure 4 is a drawing for explaining the joint structure of a housing and a membrane according to an embodiment of the present invention.

[0028] Figure 5 is an enlarged view of A in Figure 4.

[0029] Figure 6 is a drawing showing a first modified example of a guide protrusion shape according to an embodiment of the present invention.

[0030] Fig. 7 is a drawing showing a second modified example of the guide protrusion shape according to an embodiment of the present invention.

[0031]

[0032] Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the attached drawings.

[0033] However, the technical idea of ​​the present invention is not limited to some of the embodiments described, but can be implemented in various different forms, and within the scope of the technical idea of ​​the present invention, one or more of the components between the embodiments can be selectively combined or substituted for use.

[0034] In addition, terms (including technical and scientific terms) used in the embodiments of the present invention may be interpreted as having a meaning that can be generally understood by a person of ordinary skill in the technical field to which the present invention belongs, unless explicitly and specifically defined and described, and terms that are commonly used, such as terms defined in a dictionary, may be interpreted in consideration of the contextual meaning of the relevant technology.

[0035] In addition, 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. In this specification, the singular may also include the plural unless specifically stated otherwise in the phrase, and when it is described as “A and / or at least one (or more) of B, C,” it may include one or more of all combinations that can be combined with A, B, and C.

[0036] Additionally, in describing components of embodiments of the present invention, terms such as first, second, A, B, (a), (b), etc. may be used.

[0037] These terms are intended only to distinguish one component from another, and are not intended to limit the nature, order, or sequence of the component.

[0038] And, when a component is described as being 'connected', 'coupled' or 'connected' to another component, it may include not only cases where the component is directly connected, coupled or connected to the other component, but also cases where the component is 'connected', 'coupled' or 'connected' by another component between the component and the other component.

[0039] Additionally, when it is described as being formed or arranged "above or below" each component, "above" or "below" includes not only cases where the two components are in direct contact with each other, but also cases where one or more other components are formed or arranged between the two components. Also, when it is expressed as "above" or "below", it can include the meaning of the downward direction as well as the upward direction based on one component.

[0040] The electronic device according to the present embodiment is installed in a vehicle and may include an electronic control unit (ECU), an on-board charger (OBC), a converter and a power conversion device in which the OBC is placed within a single housing, a pump, and a converter. However, this is exemplary, and the electronic device may include various devices having a refrigerant pipe, including at least one electronic component placed within the housing.

[0041] FIG. 1 is a perspective view of an electronic device according to an embodiment of the present invention, FIG. 2 is an enlarged view of an area of ​​FIG. 1, FIG. 3 is a view showing a membrane separated from FIG. 2, FIG. 4 is a view for explaining a joint structure of a housing and a membrane according to an embodiment of the present invention, and FIG. 5 is an enlarged view of A of FIG. 4.

[0042] Referring to FIGS. 1 to 5, an electronic device (10) according to an embodiment of the present invention may have an outer shape formed by a housing (100). The housing (100) may be formed in a box shape. A space (102) may be formed in the housing (100) to accommodate one or more electronic components therein. The inner space (102) of the housing (100) may be opened upward. A cover (not shown) may be coupled to the upper surface of the housing (100) to cover the upper surface of the space (102).

[0043] The housing (100) may include a lower plate (110) and a side plate (120) extending upward from an edge of the lower plate (110). The lower surface of the lower plate (110) may form the lower surface of the electronic device (10). The side plate (120) may form a side surface of the electronic device (10). A cover may be coupled to the side plate (120).

[0044] The upper surface of the lower plate (110) may form the bottom surface of the space (102) within the housing (100). A rib (112) having a shape that protrudes upwards more than other areas may be arranged on the upper surface of the lower plate (110). The rib (112) may be formed in a lattice shape. The strength of the housing (100) may be reinforced through the rib (112). The heat dissipation efficiency may be improved by increasing the surface area of ​​the housing (100) through the rib (112).

[0045] Electronic components may be placed in the space (102) within the housing (100). For example, a printed circuit board may be placed in the space (102) within the housing (100). The printed circuit board is formed in a plate shape, and components may be placed on one or the other surface.

[0046] A connector (190) may be arranged on a side of the housing (100). The connector (190) may include a connector outlet and a terminal arranged in a space within the connector outlet. A plurality of connectors (190) may be provided and arranged along the side of the housing (100). When an electronic device (10) is electrically and physically connected to an external component through the connector (190), an electrical signal for driving the electronic device (10) may be transmitted or received, or power may be provided to the electronic device (10).

[0047] The material of the housing (100) may be resin or plastic. Accordingly, the electronic device (10) can be made lighter.

[0048] The electronic device (10) may include a membrane (170). The membrane (170) may be formed of a resin or plastic material. For example, the material of the membrane (170) may be PTFE (Polytetrafluoroethylene). The membrane (170) is arranged to cover the openings of the housing (100), thereby blocking the inflow of moisture and foreign substances into the space (102) within the housing (100) and allowing communication between the space (102) within the housing (100) and the external space. Accordingly, heat within the housing (100) may be discharged to the outside, or the breathability of the space (102) within the housing (100) may be improved. The membrane (170) may have a circular cross-sectional shape.

[0049] In detail, as illustrated in FIGS. 2 and 3, a hole (180) may be formed in the housing (100) from the inner surface to the outer surface. The hole (180) may have a circular cross-sectional shape. The space (102) within the housing (100) and the outer space may be communicated through the hole (180). The hole (180) may be covered by a membrane (170). The hole (180) may have a cross-sectional area smaller than the cross-sectional area of ​​the membrane (170). The hole (180) may be arranged to overlap the central portion of the membrane (170) in the vertical direction.

[0050] A through hole guide may be arranged in the hole (180). The through hole guide may include a central portion (182) arranged in the center, and a plurality of extension portions (184) extending radially from an outer circumferential surface of the central portion (182). The central portion (182) may have a circular cross-sectional shape. The extension portions (184) may have a shape connecting the outer circumferential surface of the central portion (182) and the inner surface of the hole (180). A plurality of extension portions (184) may be provided, and may be arranged along the circumferential direction of the central portion (182). A through hole (186) connecting the internal space (102) of the housing (100) and the external space may be arranged between two adjacent extension portions (184). The through holes (186) may also be provided in plurality, and may be arranged to be spaced apart from each other along the circumferential direction of the central portion (182).

[0051] A membrane joint (150) having a shape that protrudes inwardly compared to other areas may be arranged on the inner surface of the housing (100). The membrane joint (150) may be arranged in an area where a hole (180) is formed. Specifically, when the membrane joint (150) is arranged on the upper surface of the lower plate (110), the hole (180) may have a shape that penetrates from the upper surface to the lower surface of the lower plate (110). The hole (180) may be arranged at the center of the membrane joint (150).

[0052] The membrane joint (150) may include a side wall (151) that protrudes from the inner surface of the housing (100), and a joint groove (152) that is arranged on the inner side of the side wall (151) and forms a joint space of the membrane (170). The side wall (151) may have a closed loop cross-section. The side wall (151) may have a ring-shaped cross-section. The side wall (151) has a shape that protrudes upward from the upper surface of the lower plate (110) and may be connected to the rib (112) described above. Accordingly, the strength of the housing (100) may be reinforced.

[0053] The coupling groove (152) may be arranged on the inner side of the side wall (152). The coupling groove (152) may have a circular cross-sectional shape. The cross-sectional area of ​​the coupling groove (152) may be larger than the cross-sectional area of ​​the membrane (170). The coupling groove (152) may be a space defined by the inner surface of the side wall (151). The hole (180) may be arranged in the center of the bottom surface (156) of the coupling groove (152).

[0054] The side wall (151) may be connected to the side plate (120) of the housing (100). The membrane joint (150) may include a connecting portion (159) connecting the inner surface of the side wall (151) and the side plate (120).

[0055] The membrane joint (150) may include a guide protrusion (154). The guide protrusion (154) may have a shape that protrudes inwardly from the inner surface of the side wall (151). The guide protrusion (154) may have a shape that protrudes inwardly from the inner surface of the joint groove (152). The guide protrusions (154) may be provided in plurality, and may come into contact with the outer surface of the membrane (170) when the membrane (170) is coupled within the membrane joint (150). The guide protrusions (154) may be coupled to the side surface of the membrane (170). The plurality of guide protrusions (154) may be arranged to be spaced apart from each other along the circumferential direction. For example, three guide protrusions (154) may be provided, and may be arranged to form a 120-degree gap with the adjacent guide protrusions (154).

[0056] The radial protrusion length of the guide protrusion (154) from the inner surface of the side wall (151) may be 1 / 20 or more of the diameter of the membrane (170). Accordingly, a certain angle of the guide protrusion (154) can be secured.

[0057] According to the structure as described above, there is an advantage in that the position between the membrane (170) and the hole (180) can be precisely controlled by aligning the membrane (170) within the joining groove (152) through a plurality of guide protrusions (154).

[0058] Meanwhile, in this embodiment, the membrane joint (150) is described as being arranged on the inner surface of the housing (100), but this is not limited thereto, and the membrane joint (150) may be arranged on the outer surface of the housing (100).

[0059] Referring to FIGS. 4 and 5, the guide protrusion (154) may be arranged to be inclined. Specifically, the inner surface of the guide protrusion (154) in contact with the side surface of the membrane (170) may be an inclined surface in which the horizontal distance to the side surface of the membrane (170) becomes shorter as it gets closer to the bottom surface (156) of the coupling groove (152). The guide protrusion (154) may be arranged to be inclined so as to have a predetermined angle (a) with respect to an imaginary line (l) that is perpendicular to the bottom surface (156) of the coupling groove (152). Here, the angle (a) formed by the side surface of the guide protrusion (154) and the imaginary line (l) may be 1 degree or more and 3 degrees or less. According to the structure as described above, the coupling between the membrane (170) and the coupling groove (152) can be maintained more firmly by the contact structure between the inner surface of the guide protrusion (154) and the side surface of the membrane (170). In addition, the membrane (170) can be prevented from being detached to the outside of the coupling groove (152). Meanwhile, the area of ​​the membrane (170) that is in contact with the inner surface of the guide protrusion (154) may be an upper edge area connecting the upper surface and the side surface of the membrane (170).

[0060] FIG. 6 is a drawing showing a first modified example of a guide protrusion shape according to an embodiment of the present invention.

[0061] Referring to Fig. 6, the guide protrusion (154) may include a straight portion (154a) and an inclined portion (154b). The straight portion (154a) may be placed on the inclined portion (154b).

[0062] The straight portion (154a) can be arranged perpendicular to the bottom surface (156) of the joining groove (152). In the formation area of ​​the straight portion (154a), the cross-sectional area of ​​the joining groove (152) can be constant.

[0063] The inclined portion (154b) may be arranged to form a predetermined angle (a) with respect to an imaginary line (l) that is perpendicular to the bottom surface (156) of the joining groove (152). The cross-sectional area of ​​the joining groove (152) in the formation area of ​​the inclined portion (154b) may have a shape that increases as it gets closer to the bottom surface (156).

[0064] According to the structure described above, the membrane (170) can be easily introduced through the straight portion (154a) at the entrance of the joining groove (152). In addition, the membrane (170) can be prevented from being detached from the outside through the inclined portion (154b), or the bonding force can be more firmly maintained by forming a contact structure with the outer surface of the membrane (170).

[0065] FIG. 7 is a drawing showing a second modified example of the guide protrusion shape according to an embodiment of the present invention.

[0066] Referring to Fig. 7, the guide protrusion (154) may include a first inclined portion (154c) and a second inclined portion (154d). The first inclined portion (154c) may be placed on the second inclined portion (154d).

[0067] A first coupling groove (152a) may be arranged on the inner side of the first slope (154c), and a second coupling groove (152b) may be arranged on the inner side of the second slope (154d).

[0068] The first inclined portion (154c) may be arranged so that the cross-sectional area of ​​the first coupling groove (152a) becomes smaller as it gets closer to the bottom surface (156). The inner surface of the first inclined portion (154c) may be an inclined surface of a shape in which the cross-sectional area of ​​the first coupling groove (152a) becomes smaller as it gets closer to the bottom surface (156).

[0069] The second inclined portion (154d) may be arranged so that the cross-sectional area of ​​the second coupling groove (152b) increases as it gets closer to the bottom surface (156). The inner surface of the second inclined portion (154d) may be an inclined surface of a shape in which the cross-sectional area of ​​the second coupling groove (152b) increases as it gets closer to the bottom surface (156).

[0070] According to the structure as described above, the membrane (170) can easily enter the space within the coupling groove (152) through the first inclined portion (154c). In addition, the membrane (170) can be prevented from coming off externally through the second inclined portion (154d), or the coupling force can be more firmly maintained by forming a contact structure with the outer surface of the second inclined portion (154d).

[0071] Although all components constituting the embodiments of the present invention have been described above as being combined or operating in combination, the present invention is not necessarily limited to these embodiments. That is, within the scope of the purpose of the present invention, all components may be selectively combined and operated one or more times. In addition, terms such as "include," "comprise," or "have" described above, unless specifically stated to the contrary, mean that the corresponding component may be inherent, and therefore should be interpreted as including other components rather than excluding other components. All terms, including technical or scientific terms, have the same meaning as generally understood by a person of ordinary skill in the art to which the present invention pertains, unless otherwise defined. Commonly used terms, such as terms defined in a dictionary, should be interpreted as being consistent with the contextual meaning of the related technology, and shall not be interpreted in an ideal or excessively formal sense, unless explicitly defined in the present invention.

[0072] The above description is merely an illustrative description of the technical idea of ​​the present invention, and those skilled in the art will appreciate that various modifications and variations may be made without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the technical idea of ​​the present invention, and the scope of the technical idea of ​​the present invention is not limited by these embodiments. The scope of protection of the present invention should be interpreted by the following claims, and all technical ideas within a scope equivalent thereto should be interpreted as being included in the scope of the rights of the present invention.

Claims

1. A housing having a space formed inside and including a hole; and A membrane is included that is arranged to cover the above hole, A membrane joint to which the membrane is joined is arranged on the inner surface of the housing, An electronic device in which the membrane joint portion includes a side wall, a joint groove arranged on the inner side of the side wall, and a guide protrusion protruding inward from the inner side of the side wall and coming into contact with the outer surface of the membrane.

2. In paragraph 1, An electronic device in which the above guide protrusions are provided in multiple numbers and arranged along the circumferential direction of the above joining groove.

3. In paragraph 1, An electronic device in which the inner surface of the guide protrusion facing the membrane is shaped like a slope in which the distance to the membrane becomes shorter as it gets closer to the bottom surface of the coupling groove.

4. In paragraph 3, An electronic device in which the above guide protrusion is arranged at an angle so as to form a predetermined angle with respect to an imaginary line (l) perpendicular to the floor surface.

5. In paragraph 4, An electronic device in which the above guide protrusion and the above virtual line (l) form an angle of 1 degree or more and 3 degrees or less.

6. In paragraph 1, An electronic device in which the above hole is positioned at the center of the bottom surface of the above-mentioned joining groove and overlaps with the above-mentioned membrane.

7. In paragraph 1, The inner surface of the housing has ribs that protrude more than other areas. The above rib is an electronic device connected to the side wall.

8. In paragraph 1, The above guide protrusion includes a straight portion and an inclined portion arranged below the straight portion, The cross-sectional area of ​​the joining groove within the above straight section is constant, An electronic device in which the cross-sectional area of ​​the coupling groove within the above-mentioned inclined portion increases as it gets closer to the floor surface.

9. In paragraph 1, The above guide protrusion includes a first inclined portion and a second inclined portion arranged below the first inclined portion, The cross-sectional area of ​​the joining groove within the first slope above becomes smaller as it gets closer to the floor surface, An electronic device in which the cross-sectional area of ​​the coupling groove within the second slope increases as it gets closer to the floor surface.

10. In paragraph 1, The housing comprises a lower plate and a side plate extending upward from an edge of the lower plate, The above membrane joint and the above hole are arranged on the lower plate, An electronic device in which the membrane joint includes a connecting portion connecting the side plate and the side wall.

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