Printed circuit board module and electronic device comprising same

Abstract

This printed circuit board module includes: a main printed circuit board including a first hole; a sub printed circuit board which is coupled to the first hole and is arranged perpendicularly to the main printed circuit board; and an electronic component coupled to a front surface forming a side surface of the sub printed circuit board, wherein the thickness of the sub printed circuit board is less than the length of the first hole in a first direction, which corresponds to the thickness direction of the sub printed circuit board.

Description

Printed circuit board module and electronic device including the same

[0001] The present embodiment relates to a printed circuit board module and an electronic device including the same.

[0002]

[0003] Electronic devices typically include a housing, a printed circuit board (PCB) positioned within the housing, and a number of electronic components positioned on the PCB. Electronic components positioned on the PCB vary in size depending on their function and type. Therefore, placing electronic components of different sizes on a single PCB presents a challenge in efficiently utilizing the space within the housing.

[0004] Recently, electronic devices are becoming more miniaturized, but considering the narrow space within the housing and the occurrence of electrical noise between multiple electronic components, it is difficult to arrange electronic components, including printed circuit boards, within the housing.

[0005]

[0006] The present invention provides a printed circuit board module capable of compactly arranging a plurality of electronic components within a main printed circuit board to secure a wider space for arranging components within a housing, and physically and electrically firmly connecting a sub-printed circuit board within a main printed circuit board, and an electronic device including the same.

[0007]

[0008] A printed circuit board module according to the present embodiment includes a main printed circuit board including a first hole; a sub-printed circuit board coupled to the first hole and arranged vertically with respect to the main printed circuit board; and an electronic component coupled to a front surface forming a side surface of the sub-printed circuit board, wherein a thickness of the sub-printed circuit board is smaller than a first direction length of the first hole corresponding to a thickness direction of the sub-printed circuit board.

[0009] The above main printed circuit board includes a rail arranged to connect a first inner surface of the first hole and a second inner surface opposite to the first inner surface, and a guide groove coupled to the rail may be formed on the lower surface of the sub printed circuit board.

[0010] A guide protruding downward from the other area and coupled to the first hole is formed on the lower surface of the above sub-printed circuit board, and the guide groove can be arranged on the lower surface of the guide.

[0011] The length of the above guide home may correspond to the length of the first hole.

[0012] A first catch that supports the rear surface of the sub-printed circuit board may be arranged on the above rail.

[0013] It may include a first fixing part including a fixing groove formed on the lower surface and coupled to the sub-printed circuit board, and a plurality of pillar parts arranged on both sides of the fixing groove and having a lower end coupled to the main printed circuit board.

[0014] A slit for coupling with the fixing groove may be formed on the upper surface of the above sub-printed circuit board.

[0015] It may include a second fixing part including a body part having a lower end joined to the main printed circuit board and facing the front of the sub printed circuit board, and a catch part extending rearward from the upper end of the body part and catches the rear of the sub printed circuit board.

[0016] A support member that protrudes forward and supports the rear surface of the sub-printed circuit board may be arranged in an area of ​​the inner surface of the first hole facing the rear surface of the sub-printed circuit board.

[0017] An electronic device according to the present embodiment comprises a housing; and a printed circuit board module disposed within the housing, wherein the printed circuit board module comprises: a main printed circuit board including a first hole; a sub-printed circuit board coupled to the first hole and disposed perpendicular to the main printed circuit board; and an electronic component coupled to a front surface forming a side surface of the sub-printed circuit board, wherein a thickness of the sub-printed circuit board is smaller than a first direction length of the first hole corresponding to a thickness direction of the sub-printed circuit board.

[0018]

[0019] In this embodiment, in the case of electronic components having a relatively high height, the sub-printed circuit board can be arranged vertically in the height direction through the sub-printed circuit board arranged vertically on the main printed circuit board, so there is an advantage in that the vertical height of the printed circuit board module can be reduced.

[0020] In addition, since the sub-printed circuit board is supported on the main printed circuit board by means such as a catch, a fixing part, and a support part, there is an advantage in that deformation such as bending of the sub-printed circuit board can be prevented, while at the same time, the connection with the main printed circuit board can be firmly maintained.

[0021]

[0022] Figure 1 is a perspective view of a printed circuit board module according to an embodiment of the present invention.

[0023] Figure 2 is a drawing showing Figure 1 from a different angle.

[0024] FIG. 3 is a plan view showing the upper surface of a printed circuit board module according to an embodiment of the present invention.

[0025] Figure 4 is an exploded perspective view of a printed circuit board module according to an embodiment of the present invention.

[0026] FIG. 5 and FIG. 6 are drawings illustrating an assembly process of a main printed circuit board and a first sub-printed circuit board according to an embodiment of the present invention.

[0027] Figures 7 to 9 are drawings illustrating an assembly process of a main printed circuit board and a second sub-printed circuit board according to an embodiment of the present invention.

[0028] FIG. 10 and FIG. 11 are drawings illustrating an assembly process of a main printed circuit board and a third sub-printed circuit board according to an embodiment of the present invention.

[0029] Fig. 12 is a plan view illustrating a combined structure of a main printed circuit board and a fourth sub-printed circuit board according to an embodiment of the present invention.

[0030] FIG. 13 is a drawing showing a modified example of the arrangement structure of a connector in a sub-printed circuit board 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 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 may include a TV, a mobile terminal, an electrical component installed in a vehicle, etc., but this is exemplary, and the electronic device may include various devices whose exterior is formed by a housing and which include a printed circuit board module placed within the housing.

[0041] FIG. 1 is a perspective view of a printed circuit board module according to an embodiment of the present invention, FIG. 2 is a view illustrating FIG. 1 from a different angle, FIG. 3 is a plan view illustrating an upper surface of a printed circuit board module according to an embodiment of the present invention, FIG. 4 is an exploded perspective view of a printed circuit board module according to an embodiment of the present invention, FIGS. 5 and 6 are drawings illustrating an assembly process of a main printed circuit board and a first sub-printed circuit board according to an embodiment of the present invention, FIGS. 7 to 9 are drawings illustrating an assembly process of a main printed circuit board and a second sub-printed circuit board according to an embodiment of the present invention, FIGS. 10 and 11 are drawings illustrating an assembly process of a main printed circuit board and a third sub-printed circuit board according to an embodiment of the present invention, FIG. 12 is a plan view illustrating a coupling structure of a main printed circuit board and a fourth sub-printed circuit board according to an embodiment of the present invention, and FIG. 13 is a diagram illustrating an arrangement of connectors in a sub-printed circuit board according to an embodiment of the present invention. This is a drawing showing a modified example of the structure.

[0042] Referring to FIGS. 1 to 12, a printed circuit board module (10) according to an embodiment of the present invention can be placed in a space within a housing that forms the exterior of an electronic device.

[0043] The above printed circuit board module (10) may include a main printed circuit board (100), a first sub printed circuit board (200), a second sub printed circuit board (300), a third sub printed circuit board (400), and a fourth sub printed circuit board (500). The first sub printed circuit board (200), the second sub printed circuit board (300), the third sub printed circuit board (400), and the fourth sub printed circuit board (500) may each be referred to as sub printed circuit boards.

[0044] The main printed circuit board (100) may be formed in a plate shape. The main printed circuit board (100) may have a rectangular cross-sectional shape. A plurality of electronic components (102) may be arranged on the upper or lower surface of the main printed circuit board (100). The plurality of electronic components (102) may be mounted on the surface of the main printed circuit board (100). The vertical height of each of the plurality of electronic components (102) may be less than or equal to the vertical height of the first to fourth sub-printed circuit boards (200, 300, 400, 500).

[0045] The main printed circuit board (100) may include a hole. The hole may be formed to penetrate from the upper surface to the lower surface of the main printed circuit board (100). The hole may be arranged adjacent to at least one electronic component (102) among the plurality of electronic components (102). With respect to a single electronic component (102), a plurality of holes may be formed on the outside of the electronic component (102).

[0046] The combined structure of the above main printed circuit board (100) and the above first sub-printed circuit board (200) will be described.

[0047] Referring to FIGS. 1 to 6, the printed circuit board module (10) may include a first sub-printed circuit board (200). The first sub-printed circuit board (200) may be coupled to the main printed circuit board (100). A first electronic component (230) may be arranged on a surface of the first sub-printed circuit board (200). The first electronic component (230) may be arranged on a side surface of the first sub-printed circuit board (200). The first electronic component (230) may be arranged on the front surface of the first sub-printed circuit board (200). The first electronic component (230) may be soldered to the surface of the first sub-printed circuit board (200). The first electronic component (230) may be provided in multiple numbers and may be arranged to be spaced apart in a horizontal direction perpendicular to the vertical direction (X) on the side of the first sub-printed circuit board (200). Here, the horizontal direction may be a direction parallel to the upper surface of the main printed circuit board (100).

[0048] The horizontal length (Y) of the first electronic component (230) may be formed to be longer than the vertical length (X) of the first sub-printed circuit board (200).

[0049] A first guide (210) may be formed on the lower surface of the first sub-printed circuit board (200). The first guide (210) may have a shape in which a portion of the lower surface of the first sub-printed circuit board (200) protrudes downward. Based on the arrangement direction of the plurality of first electronic components (230), the length of the first guide (210) may be smaller than the length of the inner upper region of the first sub-printed circuit board (200).

[0050] A first guide groove (213) may be formed in the first guide (210). The first guide groove (213) may be formed to be concave upward from the lower surface of the first guide (210) compared to other regions. Through the first guide groove (213), the first guide (210) may be divided into a plurality of regions. The first guide groove (213) may be arranged in the center of the first guide (210).

[0051] A first connector (250) may be arranged on a side surface of the first sub-printed circuit board (200) on which the first electronic component (230) is arranged. A plurality of first connectors (250) may be provided, and may be arranged on each of the two sides of the plurality of first electronic components (230). The plurality of first connectors (250) may be arranged adjacent to each end of the first sub-printed circuit board (200). The first connector (250) may be coupled to a first terminal (110) on the main printed circuit board (100). Accordingly, the main printed circuit board (100) and the first sub-printed circuit board (200) may be electrically connected.

[0052] The above main printed circuit board (100) may include a first hole (120) and a second hole (122). The first hole (120) and the second hole (120) may be formed to penetrate from the upper surface to the lower surface of the main printed circuit board (100), respectively. The first hole (120) and the second hole (122) may be arranged adjacent to each other in the horizontal direction (Y). The first hole (120) and the second hole (122) may be connected to each other.

[0053] The first sub-printed circuit board (200) may be coupled to the first hole (120). When the arrangement direction of the plurality of first electronic components (230) within the first sub-printed circuit board (200) is referred to as the first direction (Z), the length of the first hole (120) in the first direction (Z) may be smaller than the length of the first sub-printed circuit board (200) in the first direction (Z). The length of the first guide (210) within the first sub-printed circuit board (200) in the first direction (Z) may correspond to the length of the first hole (120) in the first direction (Z). The first guide (210) may be coupled to the first hole (120).

[0054] With respect to the second direction (Y) perpendicular to the first direction (Z), the thickness of the first sub-printed circuit board (200) may be smaller than the length of the first hole (120) in the second direction (Y). Accordingly, when the first guide (210) is coupled to the first hole (120), the first sub-printed circuit board (200) can be moved in the second direction (Y), as illustrated in FIGS. 5 and 6. Accordingly, an assembly space for the first sub-printed circuit board (200) within the first hole (120) can be secured. When the surface where the first electronic component (230) is coupled is referred to as the front surface of the first sub-printed circuit board (200), when the first sub-printed circuit board (200) is coupled to the main printed circuit board (100), a part of the first hole (120) may be arranged on the rear surface of the first sub-printed circuit board (200).

[0055] The main printed circuit board (100) may include a first rail (124). The first rail (124) may be arranged in the first hole (120). The first rail (124) may be arranged to connect one inner surface of the first hole (120) and the other inner surface opposite to the one inner surface. The first guide groove (213) may be coupled to the first rail (124). When assembling the main printed circuit board (100) and the first sub-printed circuit board (200), the first guide groove (213) may slide in the second direction (Y) while being coupled to the first rail (124).

[0056] A first catch (126) may be arranged on the upper surface of the first rail (124). The first catch (126) may have a shape in which a portion of the upper surface of the first rail (124) protrudes upward. The first catch (126) may support the rear surface of the first sub-printed circuit board (200). A side surface of the first catch (126) may be in contact with the rear surface of the first sub-printed circuit board (200). The joining area of ​​the first sub-printed circuit board (200) within the first hole (120) may be guided by the first catch (126). The joining state of the first sub-printed circuit board (200) may be firmly maintained by the first catch (126).

[0057] A first inclined surface (127) may be formed on the upper surface of the first catch portion (126). The first inclined surface (126) may have a shape in which the vertical thickness of the first catch portion (126) becomes smaller as the distance from the first sub-printed circuit board (200) becomes closer. The joining area of ​​the first sub-printed circuit board (200) within the first hole (120) can be easily guided through the first inclined surface (126).

[0058] The second hole (122) may be arranged in front of the first hole (120). The second holes (122) may be provided in multiple numbers to correspond to the number of the first electronic components (230) and may be arranged to be spaced apart from each other along the second direction (Y). At least a portion of the first electronic component (230) may be coupled to the second hole (122). The first electronic component (230) may be supported on the main printed circuit board (100) through the second hole (122). The length of the second hole (122) in the first direction (Z) may be smaller than the length of the first electronic component (230) in the first direction (Z). The width of the second hole (122) may be smaller than the width of the first electronic component (230). Accordingly, a part of the first electronic component (230) may be placed within the second hole (122), and another part of the first electronic component (230) may be supported by the upper surface of the main printed circuit board (100). The first electronic component (230) may have a circular cross-sectional shape. By a structure that accommodates a part of the first electronic component (230) through the second hole (122), the vertical height of the printed circuit board module (100) may be reduced.

[0059] A first terminal (110) for electrical connection with the first sub-printed circuit board (200) may be arranged on the main printed circuit board (100). The first terminals (110) may be provided in plurality and may be arranged on either side of the first hole (120) or the second hole (122). The first terminals (110) may be arranged to face the first connector (250) in the second direction (Y). The first connector (250) may be coupled to the first terminal (110).

[0060] Meanwhile, in order to prevent the first connector (250) from being arbitrarily detached from the first terminal (110), a locking means (not shown) may be provided on the first terminal (110) or the first connector (250). The locking means may be implemented through a hook and a hook hole.

[0061] The combined structure of the above main printed circuit board (100) and the above second sub printed circuit board (300) will be described.

[0062] Referring to FIGS. 1 to 4 and 7 to 9, the printed circuit board module (10) may include a second sub-printed circuit board (300). The second sub-printed circuit board (300) may be coupled to the main printed circuit board (100). A second electronic component (330) may be arranged on a surface of the second sub-printed circuit board (300). The second electronic component (330) may be arranged on a side surface of the second sub-printed circuit board (300). The second electronic component (330) may be arranged on the front surface of the second sub-printed circuit board (300). The second electronic component (330) may be soldered to the surface of the second sub-printed circuit board (300). The second electronic component (330) may be provided in multiple numbers and may be arranged spaced apart from each other in the first direction (Z), which is a direction parallel to the upper surface of the main printed circuit board (100) on the side of the second sub-printed circuit board (300).

[0063] The second direction (Y) length of the second electronic component (330) may be formed to be longer than the vertical direction (X) length of the second sub-printed circuit board (300).

[0064] A second guide (310) may be formed on the lower surface of the second sub-printed circuit board (300). The second guide (310) may have a shape in which a portion of the lower surface of the second sub-printed circuit board (300) protrudes downward. The first direction (Z) length of the second guide (310) may be smaller than the first direction (Z) length of the inner upper region of the second sub-printed circuit board (300).

[0065] A second guide groove (313) may be formed in the second guide (310). The second guide groove (313) may be formed to be concave upward from the lower surface of the second guide (310) compared to other regions. Through the second guide groove (313), the second guide (310) may be divided into a plurality of regions. The second guide groove (313) may be arranged in the center of the second guide (310).

[0066] A second connector (350) may be arranged on the front side of the second sub-printed circuit board (300), which is the arrangement surface of the second electronic component (330). The second connectors (350) may be provided in plurality and arranged on each of the two sides of the plurality of second electronic components (330). The plurality of second connectors (350) may be arranged adjacent to each end of the second sub-printed circuit board (300). The second connectors (350) may be coupled to the second terminals (130) on the main printed circuit board (100). Accordingly, the main printed circuit board (100) and the second sub-printed circuit board (300) may be electrically connected.

[0067] The above main printed circuit board (100) may include a third hole (140) and a fourth hole (142). The third hole (140) and the fourth hole (142) may be formed to penetrate from the upper surface to the lower surface of the main printed circuit board (100), respectively. The third hole (140) and the fourth hole (142) may be arranged adjacent to each other in the second direction (Y). The third hole (140) and the fourth hole (142) may be connected to each other.

[0068] The second sub-printed circuit board (300) may be coupled to the third hole (140). The first direction (Z) length of the third hole (140) may be smaller than the first direction (Z) length of the second sub-printed circuit board (300). The first direction (Z) length of the second guide (310) within the second sub-printed circuit board (300) may correspond to the first direction (Z) length of the third hole (140). The second guide (310) may be coupled to the third hole (140).

[0069] The thickness of the second sub-printed circuit board (300) with respect to the second direction (Y) may be smaller than the length of the third hole (140) in the second direction (Y). Accordingly, when the second guide (310) is coupled to the third hole (140), the second sub-printed circuit board (300) can move in the second direction (Y), as illustrated in FIGS. 7 to 9. When the surface where the second electronic component (330) is coupled is referred to as the front surface of the second sub-printed circuit board (300), a part of the third hole (140) may be arranged at the rear of the second sub-printed circuit board (300) when the second sub-printed circuit board (300) is coupled to the main printed circuit board (100).

[0070] The main printed circuit board (100) may include a second rail (144). The second rail (144) may be arranged in the third hole (140). The second rail (144) may be arranged in the second direction (Y). The second rail (144) may be arranged to connect one inner surface of the second hole (140) and the other inner surface opposite to the one inner surface. The second guide groove (313) may be coupled to the second rail (144). When assembling the main printed circuit board (100) and the second sub-printed circuit board (300), the second guide groove (313) may slide in the second direction (Y) while being coupled to the second rail (144).

[0071] A first fixing member (146) may be coupled on the main printed circuit board (100) and the second sub-printed circuit board (300). The first fixing member (146) is for fixing the coupled state of the second sub-printed circuit board (300) on the main printed circuit board (100), and may include a fixing groove (147) on the lower surface to which the second sub-printed circuit board (300) is coupled. Due to the fixing groove (147), the first fixing member (146) may have a cross-sectional shape of approximately the letter “ㄷ”. The first fixing member (146) may include a plurality of pillar portions divided based on the fixing groove (147). The upper ends of the plurality of pillar portions may be interconnected by the upper end of the first fixing member (146).

[0072] A slit (318) may be formed on the upper surface of the second sub-printed circuit board (300) so as to be concave downward compared to other areas, and to which the fixing groove (147) of the first fixing member (146) is coupled.

[0073] A protrusion (148) having a shape that protrudes downward compared to other areas may be provided on the lower surface of the plurality of pillar portions. A coupling hole (145) to which the protrusion (148) is coupled may be formed in an area of ​​the upper surface of the main printed circuit board (100) facing the protrusion (148). A plurality of coupling holes (145) may be provided, and at least one of them may be formed in the second rail (144). Accordingly, the front and rear surfaces of the second sub-printed circuit board (300) are each supported by the plurality of pillar portions, and the coupling state with the main printed circuit board (100) may be firmly maintained.

[0074] The fourth hole (142) may be arranged in front of the third hole (140). The fourth holes (142) may be provided in multiple numbers to correspond to the number of the second electronic components (330) and may be arranged along the first direction (Z). At least a portion of the second electronic component (330) may be coupled to the fourth hole (142). The second electronic component (330) may be supported on the main printed circuit board (100) through the fourth hole (142). The first direction (Z) length of the fourth hole (142) may be smaller than the first direction (Z) length of the second electronic component (330). Accordingly, a part of the second electronic component (330) may be placed within the fourth hole (142), and another part of the second electronic component (330) may be supported by the upper surface of the main printed circuit board (100). The second electronic component (330) may have a circular cross-sectional shape.

[0075] A second terminal (130) for electrical connection with the second sub-printed circuit board (300) may be arranged on the main printed circuit board (100). The second terminals (130) may be provided in multiple numbers and may be arranged on either side of the third hole (140) or the fourth hole (142). The second terminals (130) may be arranged to face the second connector (350) in the second direction (Y). The second connector (350) may be coupled to the second terminal (130).

[0076] Meanwhile, in order to prevent the second connector (350) from being arbitrarily detached from the second terminal (130), a locking means (not shown) may be provided on the second terminal (130) or the second connector (350). The locking means may be implemented through a hook and a hook hole.

[0077] The combined structure of the above main printed circuit board (100) and the above third sub-printed circuit board (400) will be described.

[0078] Referring to FIGS. 1 to 4, 10 and 11, the printed circuit board module (10) may include a third sub-printed circuit board (400). The third sub-printed circuit board (400) may be bonded to the main printed circuit board (100). The third sub-printed circuit board (400) may be bonded to an edge forming one side of the main printed circuit board (100). A third electronic component (430) may be arranged on a surface of the third sub-printed circuit board (400). The third electronic component (430) may be arranged on a side surface of the third sub-printed circuit board (400). The third electronic component (430) may be arranged on the front surface of the third sub-printed circuit board (400). The third electronic component (430) may be soldered to the surface of the third sub-printed circuit board (400). The third electronic component (430) may be provided in multiple numbers and may be arranged spaced apart from each other in the second direction (Y), which is a direction parallel to the upper surface of the main printed circuit board (100) from the side of the third sub-printed circuit board (400).

[0079] The first direction (Z) length of the third electronic component (430) may be formed to be longer than the vertical direction (X) length of the third sub-printed circuit board (400).

[0080] A third guide (410) may be formed on the lower surface of the third sub-printed circuit board (400). The third guide (410) may have a shape in which a portion of the lower surface of the third sub-printed circuit board (400) protrudes downward. The second direction (Y) length of the third guide (410) may be smaller than the second direction (Y) length of the inner upper region of the third sub-printed circuit board (400).

[0081] A third connector (450) may be arranged on the front side of the third sub-printed circuit board (400), which is the arrangement surface of the third electronic component (430). The third connectors (450) may be provided in plurality and arranged on each of the two sides of the plurality of third electronic components (430). The plurality of third connectors (450) may be arranged adjacent to each end of the third sub-printed circuit board (400). The third connector (450) may be coupled to the third terminal (150) on the main printed circuit board (100). Accordingly, the main printed circuit board (100) and the third sub-printed circuit board (400) may be electrically connected.

[0082] The main printed circuit board (100) may include a fifth hole (160) and a sixth hole (162). The fifth hole (160) and the sixth hole (162) may be formed to penetrate from the upper surface to the lower surface of the main printed circuit board (100), respectively. The fifth hole (160) and the sixth hole (162) may be arranged adjacent to each other in the first direction (Z). The fifth hole (160) and the sixth hole (162) may be connected to each other. The fifth hole (160) has a concave shape inward from one side of the main printed circuit board (100) and may form a portion of an edge of the main printed circuit board (100).

[0083] The third sub-printed circuit board (400) may be coupled to the fifth hole (160). The second direction (Y) length of the fifth hole (160) may be smaller than the second direction (Y) length of the third sub-printed circuit board (400). The second direction (Y) length of the third guide (410) within the third sub-printed circuit board (400) may correspond to the second direction (Y) length of the fifth hole (160). The third guide (410) may be coupled to the fifth hole (160).

[0084] The thickness of the third sub-printed circuit board (400) with respect to the first direction (Z) may be smaller than the length of the fifth hole (160) in the first direction (Z). Accordingly, when the third guide (410) is coupled to the fifth hole (160), the third sub-printed circuit board (500) can move in the first direction (Z). When the surface where the third electronic component (430) is coupled is referred to as the front surface of the third sub-printed circuit board (400), a part of the fifth hole (160) may be arranged at the rear of the third sub-printed circuit board (400) when the third sub-printed circuit board (400) is coupled to the main printed circuit board (100).

[0085] A second fixing member (166) may be coupled on the main printed circuit board (100) and the second sub-printed circuit board (300). The second fixing member (166) is for fixing the coupled state of the third sub-printed circuit board (400) on the main printed circuit board (100), and the lower end may be coupled on the main printed circuit board (100), and a catch member (168) for coupling with the third sub-printed circuit board (400) may be provided on the upper end.

[0086] In detail, the second fixing member (166) may include a body portion arranged on the front side of the third sub-printed circuit board (400), and an extension portion extending rearward from the top of the body and having the catch portion (168) formed at an end thereof. A slit (418) to which the extension portion is coupled may be formed on the upper surface of the third sub-printed circuit board (400). The catch portion (168) may be coupled to the rear side of the third sub-printed circuit board (400). An inclined surface (169) may be formed on the rear side of the catch portion (168) so that the third sub-sub-printed circuit board (400) is easily guided when coupled.

[0087] A protrusion protruding downward from the lower surface of the body portion may be formed. A joining hole to which the protrusion is joined may be formed on the upper surface of the main printed circuit board (100) facing the protrusion.

[0088] Accordingly, when the main printed circuit board (100) and the third sub-printed circuit board (400) are combined, the front surface of the third sub-printed circuit board (400) is supported by the inner surface of the fifth hole (160) and the rear surface of the body part, and the rear surface of the third sub-printed circuit board (400) is supported by the front surface of the catch (168), so that the combined state of the third sub-printed circuit board (400) can be firmly maintained.

[0089] The sixth hole (162) may be arranged in front of the fifth hole (160). The sixth holes (162) may be provided in multiple numbers to correspond to the number of the third electronic components (430) and may be arranged along the second direction (Y). At least a portion of the third electronic component (430) may be coupled to the sixth hole (162). The third electronic component (430) may be supported on the main printed circuit board (100) through the sixth hole (162). The second direction (Y) length of the sixth hole (162) may be shorter than the second direction (Y) length of the third electronic component (430). Accordingly, a part of the third electronic component (430) may be placed within the sixth hole (162), and another part of the third electronic component (430) may be supported by the upper surface of the main printed circuit board (100). The third electronic component (430) may have a circular cross-sectional shape.

[0090] A third terminal (150) for electrical connection with the third sub-printed circuit board (400) may be arranged on the main printed circuit board (100). The third terminals (150) may be provided in multiple numbers and may be arranged on either side of the fifth hole (160) or the sixth hole (162). The third terminals (150) may be arranged to face the third connector (450) in the first direction (Z). The third connector (450) may be coupled to the third terminal (150).

[0091] Meanwhile, in order to prevent the third connector (450) from being arbitrarily detached from the third terminal (150), a locking means (not shown) may be provided on the third terminal (150) or the third connector (450). The locking means may be implemented through a hook and a hook hole.

[0092] The combined structure of the above main printed circuit board (100) and the fourth sub-printed circuit board (500) will be described.

[0093] Referring to FIGS. 1 to 4 and 12, the printed circuit board module (10) may include a fourth sub-printed circuit board (500). The fourth sub-printed circuit board (500) may be coupled to the main printed circuit board (100). A fourth electronic component (530) may be disposed on a surface of the fourth sub-printed circuit board (500). The fourth electronic component (530) may be disposed on a side surface of the fourth sub-printed circuit board (500). The fourth electronic component (530) may be disposed on the front surface of the fourth sub-printed circuit board (500). The fourth electronic component (530) may be soldered to the surface of the fourth sub-printed circuit board (500). The fourth electronic component (530) may be provided in multiple numbers and may be arranged spaced apart from each other in the first direction (Z), which is a direction parallel to the upper surface of the main printed circuit board (100) on the side of the fourth sub-printed circuit board (500).

[0094] The second direction (Y) length of the fourth electronic component (530) may be formed to be longer than the vertical direction (X) length of the fourth sub-printed circuit board (500).

[0095] A fourth guide (510) may be formed on the lower surface of the fourth sub-printed circuit board (500). The fourth guide (510) may have a shape in which a portion of the lower surface of the fourth sub-printed circuit board (500) protrudes downward. The first direction (Z) length of the fourth guide (510) may be smaller than the first direction (Z) length of the inner upper region of the fourth sub-printed circuit board (500).

[0096] A fourth connector (550) may be arranged on the front side of the fourth sub-printed circuit board (500), which is the arrangement surface of the fourth electronic component (530). The fourth connectors (550) may be provided in plurality and arranged on each side of the plurality of fourth electronic components (530). The plurality of fourth connectors (550) may be arranged adjacent to each end of the fourth sub-printed circuit board (500). The fourth connector (550) may be coupled to the fourth terminal (170) on the main printed circuit board (100). Accordingly, the main printed circuit board (100) and the fourth sub-printed circuit board (500) may be electrically connected.

[0097] The above main printed circuit board (100) may include a seventh hole (180) and an eighth hole (182). The seventh hole (180) and the eighth hole (182) may be formed to penetrate from the upper surface to the lower surface of the main printed circuit board (100), respectively. The seventh hole (180) and the eighth hole (182) may be arranged adjacent to each other in the second direction (Y). The seventh hole (180) and the eighth hole (182) may be connected to each other.

[0098] The fourth sub-printed circuit board (500) may be coupled to the seventh hole (180). The first direction (Z) length of the seventh hole (180) may be smaller than the first direction (Z) length of the fourth sub-printed circuit board (500). The first direction (Z) length of the fourth guide (510) within the fourth sub-printed circuit board (500) may correspond to the first direction (Z) length of the seventh hole (180). The fourth guide (510) may be coupled to the seventh hole (180).

[0099] The thickness of the fourth sub-printed circuit board (500) with respect to the second direction (Y) may be smaller than the length of the seventh hole (180) in the second direction (Y). Accordingly, when the fourth guide (510) is coupled to the seventh hole (180), the fourth sub-printed circuit board (500) can move in the second direction (Y). When the surface where the fourth electronic component (530) is coupled is referred to as the front surface of the fourth sub-printed circuit board (500), a part of the seventh hole (180) may be arranged at the rear of the fourth sub-printed circuit board (500) when the fourth sub-printed circuit board (500) is coupled to the main printed circuit board (100).

[0100] The above main printed circuit board (100) may include a support portion (186). The support portion (186) may have a shape that protrudes from the inner surface of the seventh hole (180) facing the rear surface of the fourth sub-printed circuit board (500). Accordingly, as illustrated in FIG. 12, when the fourth sub-printed circuit board (500) is coupled within the seventh hole (180), the end surface of the support portion (186) comes into contact with the rear surface of the fourth sub-printed circuit board (500), so that the coupled state of the fourth sub-printed circuit board (500) can be firmly maintained.

[0101] The above-mentioned eighth hole (182) may be arranged in front of the above-mentioned seventh hole (180). The above-mentioned eighth holes (182) may be provided in multiple numbers to correspond to the number of the fourth electronic components (530) and may be arranged along the first direction (Z). At least a portion of the fourth electronic component (530) may be coupled to the above-mentioned eighth hole (182). The above-mentioned fourth electronic component (530) may be supported on the main printed circuit board (100) through the above-mentioned eighth hole (182). The first direction (Z) length of the above-mentioned eighth hole (182) may be smaller than the first direction (Z) length of the above-mentioned fourth electronic component (530). Accordingly, a part of the fourth electronic component (530) may be placed within the eighth hole (182), and another part of the fourth electronic component (530) may be supported by the upper surface of the main printed circuit board (100). The fourth electronic component (530) may have a circular cross-sectional shape.

[0102] A fourth terminal (170) for electrical connection with the fourth sub-printed circuit board (500) may be arranged on the main printed circuit board (100). The fourth terminals (170) may be provided in multiple numbers and may be arranged on either side of the seventh hole (180) or the eighth hole (182). The fourth terminals (170) may be arranged to face the fourth connector (550) in the second direction (Y). The fourth connector (550) may be coupled to the fourth terminal (170).

[0103] Meanwhile, in order to prevent the fourth connector (550) from being arbitrarily detached from the fourth terminal (170), a locking means (not shown) may be provided on the fourth terminal (170) or the fourth connector (550). The locking means may be implemented through a hook and a hook hole.

[0104] According to the structure as described above, in the case of electronic components having a relatively high height, they can be arranged vertically in the height direction through a sub-printed circuit board arranged vertically on the main printed circuit board, so there is an advantage in that the vertical height of the printed circuit board module can be reduced.

[0105] In addition, since the sub-printed circuit board is supported on the main printed circuit board by means such as a catch, a fixing part, and a support part, there is an advantage in that deformation such as bending of the sub-printed circuit board can be prevented, while at the same time, the connection with the main printed circuit board can be firmly maintained.

[0106] Meanwhile, in this embodiment, it has been described as an example that two connectors are provided adjacent to each end of the first to fourth sub-printed circuit boards, but this is not limited thereto, and as illustrated in FIG. 13, at least one sub-printed circuit board among the first to fourth sub-printed circuit boards (200, 300, 400, 500) may be provided with three connectors (250, 350, 450, 550). In this case, based on the arrangement area of ​​the electronic components (230, 330, 430, 530), the three connectors (250, 350, 450, 550) may be arranged such that one connector is arranged in the center and two connectors are arranged adjacent to each end. A high voltage power supply and a relatively low voltage power supply may be applied to the two connectors arranged at each end, respectively, and a ground power supply may be applied to one connector arranged in the center. Alternatively, power supplies of opposite polarities may be applied to the two connectors arranged at each end, and a ground power supply may be applied to one connector arranged in the center. Accordingly, since the same effect as using four connectors is achieved, there is an advantage of reducing the number of components.

[0107] 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.

[0108] 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. Main printed circuit board including the first hole; A sub printed circuit board coupled to the first hole and arranged vertically with respect to the main printed circuit board; and Including electronic components bonded to the front surface forming the side surface of the above sub-printed circuit board, A printed circuit board module in which the thickness of the above sub-printed circuit board is smaller than the length of the first hole in the first direction corresponding to the thickness direction of the above sub-printed circuit board.

2. In paragraph 1, The above main printed circuit board includes a rail arranged to connect the first inner surface of the first hole and the second inner surface opposite to the first inner surface, A printed circuit board module having a guide groove formed on the lower surface of the above sub-printed circuit board to be coupled to the rail.

3. In paragraph 2, A guide is formed on the lower surface of the above sub-printed circuit board so as to protrude downward from other areas and be coupled to the first hole. The above guide home is a printed circuit board module arranged on the lower surface of the above guide.

4. In paragraph 2, A printed circuit board module wherein the length of the above guide home corresponds to the length of the first hole.

5. In paragraph 2, A printed circuit board module having a first catch portion that supports the rear surface of the sub printed circuit board arranged on the rail.

6. In paragraph 1, A printed circuit board module comprising a first fixing member including a fixing groove formed on a lower surface and coupled to the sub-printed circuit board, and a plurality of pillar members arranged on both sides of the fixing groove and having lower ends coupled to the main printed circuit board.

7. In paragraph 6, A printed circuit board module in which a slit is formed on the upper surface of the above sub-printed circuit board for coupling with the above fixing groove.

8. In paragraph 1, A printed circuit board module including a body part having a lower end joined to the main printed circuit board and facing the front of the sub printed circuit board, and a second fixing part including a catch part extending rearward from the upper end of the body part and catches the rear end of the sub printed circuit board.

9. In paragraph 1, A printed circuit board module, wherein a support member is arranged in an area of ​​the inner surface of the first hole facing the rear surface of the sub-printed circuit board and protrudes forward to support the rear surface of the sub-printed circuit board.

10. Housing; A printed circuit board module is included that is arranged within the housing, The above printed circuit board module, A main printed circuit board including a first hole; A sub printed circuit board coupled to the first hole and arranged vertically with respect to the main printed circuit board; and Including electronic components bonded to the front surface forming the side surface of the above sub-printed circuit board, An electronic device in which the thickness of the above sub-printed circuit board is smaller than the first direction length of the first hole corresponding to the thickness direction of the above sub-printed circuit board.

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