Electronic device

Abstract

An electronic device according to an embodiment comprises: a fixed frame; a rotating frame rotatably coupled to the fixed frame; a motor provided on the rotating frame; and a power transmission assembly provided to transmit power between the motor and the fixed frame, wherein the power transmission assembly comprises: a first gear connected to the rotating frame; and a second gear which is connected to the fixed frame and provided to be engaged with the first gear, and the second gear is provided to be engaged with the first gear at a first position and to be disengaged from the first gear at a second position.

Description

electronic devices

[0001] The present disclosure relates to an electronic device having an improved structure.

[0002] The electronic device may include a main body and a wheel provided to move the main body. Through the above configuration, the electronic device may be able to move easily within a space.

[0003] The electronic device may include a sensor that detects obstacles. The electronic device can use the information detected by the sensor to avoid obstacles or map a movable area.

[0004] The electronic device having the above configuration may include a projector, etc., which is movably arranged to project an image onto any area.

[0005] One aspect of the present disclosure provides an electronic device with an improved structure.

[0006] One aspect of the present disclosure provides a separable electronic device.

[0007] One aspect of the present disclosure provides an electronic device capable of manual operation.

[0008] The technical problems to be solved in this document are not limited to those mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art to which this invention belongs from the description below.

[0009] An electronic device according to one embodiment comprises a fixed frame, a rotating frame rotatably coupled to the fixed frame, a motor provided on the rotating frame, and a power transmission assembly provided to transmit power between the motor and the fixed frame, wherein the power transmission assembly comprises a first gear connected to the rotating frame and a second gear connected to the fixed frame and provided to mesh with the first gear, and wherein the second gear is provided to mesh with the first gear at a first position and to disengage from the first gear at a second position.

[0010] An electronic device according to one embodiment comprises a housing, a base disposed inside the housing, a rotating frame coupled to the base, a fixed frame connected to the rotating frame, a motor generating power, and a power transmission assembly comprising a first gear connected to the rotating frame and a second gear connected to the fixed frame, wherein the second gear engages with the first gear at a first position and disengages from the first gear at a second position.

[0011] FIG. 1 is a perspective view of an electronic device according to one embodiment of the present disclosure.

[0012] FIG. 2 is an exploded view of an electronic device according to one embodiment of the present disclosure.

[0013] FIG. 3 is a perspective view of the interior of a projector according to one embodiment of the present disclosure.

[0014] FIG. 4 is an exploded view of the inside of a projector according to one embodiment of the present disclosure.

[0015] FIG. 5 is a cross-sectional perspective view of the interior of a projector according to one embodiment of the present disclosure.

[0016] FIG. 6 is an exploded view of a second gear and a bracket according to one embodiment of the present disclosure.

[0017] FIG. 7 illustrates a disassembled portion of an electronic device according to one embodiment of the present disclosure.

[0018] FIG. 8 is a perspective view of a power transmission assembly according to one embodiment of the present disclosure.

[0019] FIG. 9 illustrates a part of an electronic device according to one embodiment of the present disclosure.

[0020] FIG. 10 illustrates an enlarged view of the interior of an electronic device according to one embodiment of the present disclosure.

[0021] FIG. 11 illustrates a part of an electronic device according to one embodiment of the present disclosure.

[0022] FIG. 12 illustrates a part of an electronic device according to one embodiment of the present disclosure.

[0023] FIG. 13 illustrates an enlarged view of the interior of an electronic device according to one embodiment of the present disclosure.

[0024] The various embodiments of this document and the terms used therein are not intended to limit the technical features described in this document to specific embodiments, and should be understood to include various modifications, equivalents, or substitutions of said embodiments.

[0025] In relation to the description of the drawings, similar reference numerals may be used for similar or related components.

[0026] The singular form of the noun corresponding to the item may include one or multiple items, unless the relevant context clearly indicates otherwise.

[0027] In this document, each of the phrases such as "A or B", "at least one of A and B", "at least one of A or B", "A, B or C", "at least one of A, B and C", and "at least one of A, B, or C" may include any one of the items listed together in the corresponding phrase, or all possible combinations thereof.

[0028] The term "and / or" includes a combination of multiple related described components or any of the multiple related described components.

[0029] Terms such as "first," "second," or "first" or "second" may be used simply to distinguish a component from another component and do not limit the components in other aspects (e.g., importance or order).

[0030] Where any (e.g., 1st) component is referred to as "coupled" or "connected" to another (e.g., 2nd) component, with or without the terms "functionally" or "communicationly," it means that said any component may be connected to said other component directly (e.g., via a wire), wirelessly, or through a third component.

[0031] Terms such as "include" or "have" are intended to specify the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in this document, and do not preclude the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0032] When it is said that a component is "connected," "combined," "supported," or "in contact" with another component, this includes not only cases where the components are directly connected, combined, supported, or in contact, but also cases where they are indirectly connected, combined, supported, or in contact through a third component.

[0033] When it is said that a component is located "on" another component, this includes not only cases where one component is in contact with the other, but also cases where another component exists between the two components.

[0034] The terms "part," "module," and "component" may be implemented in hardware or software. Depending on the embodiments, a plurality of "parts," "modules," and "components" may be implemented as a single component, or a single "part," "module," or "component" may include a plurality of components.

[0035] Terms such as "~part," "~unit," "~block," "~part," and "~module" may refer to a unit that processes at least one function or operation. For example, the above terms may refer to at least one piece of hardware such as an FPGA (field-programmable gate array) or ASIC (application specific integrated circuit), at least one piece of software stored in memory, or at least one process processed by a processor.

[0036] The symbols attached to each step are used to identify each step and do not indicate the order of the steps relative to one another; the steps may be performed differently from the specified order unless a specific order is clearly indicated in the context.

[0037] Meanwhile, terms such as "front-rear direction," "front," "rear," "upper side," and "lower side" used in the following description are defined based on the drawings, and the shape and position of each component are not limited by these terms. For example, "upper / lower direction" refers to the Z direction based on the drawings, and "upper" and "lower" may refer to the upward (+Z direction) and downward (-Z direction) directions in the Z direction, respectively, based on the drawings. "Front-rear direction" refers to the X direction based on the drawings, and "front" and "rear" may refer to the front (+X direction) and rear (-X direction), respectively, in the X direction based on the drawings.

[0038] Hereinafter, embodiments according to the present disclosure will be described in detail with reference to the attached drawings.

[0039] An electronic device (1) according to various embodiments of the present disclosure may perform specific tasks while driving. For example, the electronic device (1) may include a projector (1a, see FIGS. 1 to 3) which is movably provided to project an image onto any area. The present disclosure may be applied to any drivable device in addition to the examples described above.

[0040] FIG. 1 is a perspective view of an electronic device according to one embodiment of the present disclosure. FIG. 2 is an exploded view of an electronic device according to one embodiment of the present disclosure.

[0041] Referring to FIGS. 1 and FIGS. 2, a projector (1a) is described as an example of an electronic device (1).

[0042] A projector (1a) may be a device configured to project an image onto any area. For example, the projector may project an image onto a screen, wall, floor, ceiling, furniture, etc. The image may include photographs, videos, text, etc.

[0043] The projector (1a) may include a housing (10). The housing (10) may form the exterior of the projector (1a). The housing (10) may be provided to accommodate a light source, an optical member for guiding light emitted from the light source toward a projection lens (30), and an image processing device (e.g., including an LCD panel, a DMD chip and / or an LCoS panel). The housing (10) may be referred to as a main body (10), a case (10), etc.

[0044] The projector (1a) may include a projection lens (30). The projection lens (30) may be configured to project an image generated by the projector (1a) onto an arbitrary area. The projection lens (30) may be focused so that the image can be seen clearly. The projection lens (30) may adjust the size of the image according to the projection distance.

[0045] The projector (1a) may include a driving device (20). The driving device (20) may be detachably mounted on the lower part of the housing (10). The driving device (20) may include at least one wheel (21) mounted on the lower part of the housing (10) to move the housing (10). As an example, the driving device (20) may include a pair of wheels (21). The driving device (20) may include a wheel drive unit (not shown) for driving the wheels (21).

[0046] The wheel (21) may be rotatable. Specifically, the wheel (21) may be rotatable relative to the housing (10). As the wheel (21) rotates, the projector (1a) may move or change its direction of travel.

[0047] The housing (10) may include a rotating part (11) and a fixed part (12). A projection lens (30) may be positioned on the rotating part (11). The rotating part (11) may be arranged to rotate relative to the fixed part (12). Specifically, the projection lens (30) positioned on the rotating part (11) can project an image generated by the projector (1a) onto an area of ​​various heights. For example, if an image generated by the projector (1a) is to be projected onto the ceiling, the rotating part (11) may rotate so that the projection lens (30) faces the ceiling.

[0048] The projector (1a) may include a frame (40). The frame (40) may be placed inside the housing (10). A portion of the frame (40) may be exposed to the outside of the housing (10).

[0049] The driving device (20) can be coupled to the frame (40). That is, the wheel (21) can be coupled to the frame (40) and arranged to rotate.

[0050] The frame (40) may include a rotating frame (41, see FIG. 3) and a fixed frame (42). The rotating frame (41) may be placed inside the rotating part (11). A portion of the fixed frame (42) may be exposed outside the fixed part (12). A portion of the fixed frame (42) may be exposed outside the housing (10). A portion of the fixed frame (42) may be placed inside the fixed part (12).

[0051] The rotating frame (41) can be coupled to the rotating part (11). The fixed frame (42) can be coupled to the fixed part (12).

[0052] The frame (40) may include a gearbox (not shown). The gearbox (40) may be configured to generate power to be transmitted to the driving device (20) so that the projector (1a) can move.

[0053] The projector (1a) may include a lifting assembly (15). The lifting assembly (15) may include a sensor for detecting obstacles and components for lifting the sensor.

[0054] FIG. 3 is a perspective view of the interior of a projector according to one embodiment of the present disclosure. FIG. 4 is an exploded view of the interior of a projector according to one embodiment of the present disclosure. FIG. 5 is a cross-sectional perspective view of the interior of a projector according to one embodiment of the present disclosure.

[0055] Referring to FIGS. 3 to 5, a projector (1a) according to one embodiment of the present disclosure may include a frame (40).

[0056] The projector (1a) may include a base (43). The base (43) may be placed inside the rotating part (11). The base (43) may be provided to support the lifting assembly (15).

[0057] The projector (1a) may include a power transmission assembly (80, see FIG. 8). The base (43) may include a base cover (44) to cover a portion of the power transmission assembly (80). The base cover (44) may be configured to dampen and / or suppress vibrations occurring in the power transmission assembly (80).

[0058] The base (43) can be joined by a rotating frame (41) and a frame bracket (50). A pair of rotating frames (41) can be connected to the base (43). A power transmission assembly (80) can be placed on one of the rotating frames (41) of the pair of rotating frames (41). Below, the frame (40) on the side where the power transmission assembly (80) is placed will be described.

[0059] The base (43) can support a part of the power transmission assembly (80). The base (43) can support the motor (81) to be described later. The base (43) can support the worm gear (82), helical gear (83), shaft (84), and first gear (100), etc., which are part of the components of the power transmission assembly (80) to be described later.

[0060] The power transmission assembly (80) may include a second gear (200). The second gear (200) may be connected to a fixed frame (42). The second gear (200) may be connected to the fixed frame (42) by a connecting member (220).

[0061] For example, the connecting member (220) may be a screw. The second gear (200) may include a connecting hole (202) formed to allow the connecting member (220) to pass through. The connecting hole (202) may be provided in multiple numbers.

[0062] The projector (1a) may further include a bracket (210). The connecting hole (202) may not have screw threads formed therein. A bracket (210) including a screw-threaded hole may be connected to a second gear (200) so that a connecting member (220) can connect the second gear (200) and the fixed frame (42).

[0063] The second gear (200) and the bracket (210) may be made of different materials. For example, the rigidity of the second gear (200) may be higher than that of the bracket (210). Therefore, it may be easier to form screw threads in the hole formed in the bracket (210) than in the hole formed in the second gear (200).

[0064] The connecting member (200) can be provided in multiple numbers.

[0065] The first gear (100) and the second gear (200) can be meshed. The first gear (100) can receive power from a motor (81) supported by a base (43) coupled to a rotating frame (41). Thus, when the first gear (100) connected to the rotating frame (41) meshes with the second gear (200) connected to the fixed frame (42) and rotates, the rotating frame (41) can rotate relative to the fixed frame (42).

[0066] The projector (1a) may include a frame bearing (51). The frame bearing (51) may connect the rotating frame (41) and the fixed frame (42). The frame bearing (51) may be arranged to connect the center of the rotating frame (41) and the center of the fixed frame (42).

[0067] FIG. 6 is an exploded view of a second gear and a bracket according to one embodiment of the present disclosure. FIG. 7 shows an exploded view of a part of an electronic device according to one embodiment of the present disclosure.

[0068] Referring to FIGS. 6 and FIGS. 7, a projector (1a) according to one embodiment of the present disclosure may include a second gear (200).

[0069] The second gear (200) and the bracket (210) can be joined by a gear screw (230). The second gear (200) may have a screw hole (203) formed therein through which the gear screw (230) can pass.

[0070] The gear screw (230) may be provided in multiple numbers. The screw hole (203) may be formed in multiple numbers corresponding to the number of gear screws (230).

[0071] The gear screw (230) may include a gear screw head (231). The bracket (210) may be coupled to one side of the second gear (200). The gear screw (230) may be positioned such that the gear screw head (231) is located at a portion opposite to the portion where the bracket (210) is coupled to the second gear (200).

[0072] A screw groove (205) may be formed in the second gear (200). The screw groove (205) may accommodate a gear screw head (231). The depth of the screw groove (205) may be formed deeper than the height of the gear screw head (231). While the second gear (200) is coupled to the fixed frame (42), the gear screw head (231) may be accommodated in the screw groove (205) and not interfere.

[0073] The fixed frame (42) may include a guide rib (60). The guide rib (60) may be provided to protrude from the fixed frame (42) in the direction of the rotating frame (41). In other words, the guide rib (60) may protrude in the direction in which the second gear (200) is connected to the fixed frame (42).

[0074] A guide groove (206) may be formed in the second gear (200). A guide rib (60) may be received in the guide groove (206). The position of the second gear (200) when the guide rib (60) is received in the guide groove (206) may be referred to as the first position (P1). The guide rib (60) may support the second gear (200) so that the second gear (200) is positioned at the first position (P1).

[0075] When the second gear (200) is in the first position (P1), the first gear (100) and the second gear (200) can be arranged to mesh. The second gear (200) can receive power from the first gear (100) in the first position (P1).

[0076] The guide ribs (60) may be provided in multiple numbers. The guide grooves (206) may be provided in multiple numbers corresponding to the guide ribs (60).

[0077] FIG. 8 is a perspective view of a power transmission assembly according to one embodiment of the present disclosure.

[0078] Referring to FIG. 8, a projector (1a) according to one embodiment of the present disclosure may include a power transmission assembly (80).

[0079] The projector (1a) may include a motor (81). The motor (81) may be configured to generate power for transmission to a power transmission assembly (80). The motor (81) may be housed in a base (43). Vibrations of the motor (81) may be dampened by a base cover (44). The power generated by the motor (81) may be amplified by components included in the power transmission assembly (80).

[0080] For example, the power transmission assembly (80) may include a worm gear (82). The worm gear (82) may be connected to the motor (81) so as to extend in the direction of the rotation axis of the motor (81). That is, the rotational direction of the power generated by the motor (81) and the rotational direction of the worm gear (82) may be the same.

[0081] For example, the power transmission assembly (80) may include a helical gear (83). The helical gear (83) may be arranged to mesh with a worm gear (82). The axis of the helical gear (83) and the axis of the worm gear (82) may be arranged to intersect.

[0082] For example, the power transmission assembly (80) may include a shaft (84). The shaft (84) can transmit power from the helical gear (83) to the first gear (100).

[0083] The power transmission assembly (80) may include a first gear (100) and a second gear (200). When power is transmitted to the first gear (100) engaged with the second gear (200) located at a first position (P1), the rotating part (11) can rotate relative to the fixed part (12).

[0084] However, the present disclosure is not limited to the examples described above, and the power transmission assembly (80) can transmit power to the first gear (100) and / or the second gear (200) through various known methods.

[0085] For example, the first gear (100) may be a spur gear. For example, the second gear (200) may be a spur gear.

[0086] The power transmission assembly (80) can have a large reduction ratio. This prevents power from being easily transmitted from the helical gear (83) to the worm gear (82).

[0087] FIG. 9 illustrates a part of an electronic device according to one embodiment of the present disclosure. FIG. 10 illustrates an enlarged view of the interior of an electronic device according to one embodiment of the present disclosure.

[0088] Referring to FIGS. 9 and FIGS. 10, the second gear (200) of the projector (1a) according to one embodiment of the present disclosure engages with the first gear (100) at a first position (P1).

[0089] The fixed frame (42) may include a through hole (70) formed to allow the connecting member (220) to pass through. The size of the through hole (70) may be formed larger than the size of the connecting hole (202).

[0090] The second gear (200) may be movable within the size range of the through hole (70) while the connecting member (220) passes through the through hole (70) and the connecting hole (202). The second gear (200) may be fixed at a first position (P1) by the guide groove (206) receiving the guide rib (60). That is, the second gear (200) may be fixed by the connecting member (220) after being positioned at the first position (P1) by receiving the guide rib (60) in the guide groove (206).

[0091] The upper end (201) of the second gear (200) can be positioned higher than the lower end of the first gear (100). Thus, the second gear (200) can mesh with the first gear (100).

[0092] The first gear (100) can receive power from the motor (81). As the first gear (100) rotates by engaging with the second gear (200) coupled to the fixed frame (42), the rotating frame (41) can rotate relative to the fixed frame (42). The rotating frame (41) can rotate within the angular range of the second gear (200) extended around the frame bearing (51).

[0093] The through holes (70) can be provided in multiple numbers.

[0094] When the second gear (200) is in the first position (P1), the connecting member (220) can be coupled to the upper part of the through hole (70).

[0095] FIG. 11 illustrates a part of an electronic device according to one embodiment of the present disclosure.

[0096] FIG. 11 shows a cross-section of a projector (1a) according to one embodiment of the present disclosure along the line AA' of FIG. 10.

[0097] In the power transmission assembly (80), power may be transmitted from the worm gear (82) toward the second gear (200). However, power may not be transmitted from the second gear (200) toward the worm gear (82) or may be difficult to transmit. That is, if power is not generated from the motor (81), the rotating part (11) and / or the rotating frame (41) may not be able to rotate.

[0098] The projector (1a) may need to be disassembled in case of internal component failure. For example, the internal component may be a motor (81). To disassemble the projector (1a), screws, etc., attached to the rotating frame (41) and / or the fixed frame (42) may need to be removed. When the fixed part (12) of the housing (10) of the projector (1a) is disassembled, a part of the rotating frame (41) may not be exposed to the outside by the fixed frame (42). To expose the screws attached to the rotating frame (41) to the outside, the rotating part (11) may need to be rotated relative to the fixed part (12).

[0099] The connecting member (220) can be weakened while connecting the second gear (200) and the fixed frame (42). When the connecting member (220) is weakened, the second gear (200) can move from the fixed frame (42) toward the rotating frame (41).

[0100] The connecting member (220) can connect the second gear (200) and the fixed frame (42) even if it is loosened to the height of the guide rib (60). The height of the connecting member (220) may be higher than the height obtained by adding the width of the guide rib (60) and the second gear (200).

[0101] The fastening force of the connecting member (220) can be weakened by the height of the guide rib (60). That is, when the fastening force of the connecting member (220) is weakened, the guide rib (60) can be removed from the guide groove (206). When the guide rib (60) is removed from the guide groove (206), the guide rib (60) may not support the second gear (200) to be positioned in the first position (P1).

[0102] FIG. 12 illustrates a part of an electronic device according to one embodiment of the present disclosure. FIG. 13 illustrates an enlarged view of the interior of an electronic device according to one embodiment of the present disclosure.

[0103] Referring to FIG. 12 and FIG. 13, a second gear (200) according to one embodiment of the present disclosure may be located at a second position (P2).

[0104] The size of the through hole (70) can be formed to be larger than the size of the connecting hole (202). When the guide rib (60) is removed from the guide groove (206), the second gear (200) can fall due to its own weight.

[0105] The second gear (200) can drop to a height sufficient to disengage the gear mesh with the first gear (100). That is, the size of the through hole (70) can be formed such that the second gear (200) and the first gear (100) can be disengaged.

[0106] The position of the second gear (200) where the upper end (201) of the second gear (200) is lower than the lower end of the first gear (100) due to the second gear (200) falling by its own weight can be called the second position (P2). That is, the second gear (200) can be released from meshing with the first gear (100) at the second position (P2). In other words, the second gear (200) can be released from the first gear at the second position (P2).

[0107] The through hole (70) may be fan-shaped. When the second gear (200) is located at the second position (P2), the connecting member (220) may reach the arc of the through hole (70). That is, the bottom of the connecting hole (202) may be provided at the same height as the arc of the through hole (70).

[0108] When the second gear (200) is in the second position (P2), the rotating frame (41) can rotate relative to the fixed frame (42) even if power is not transmitted to the first gear (100). That is, the rotating part (11) can rotate freely relative to the fixed part (12).

[0109] An electronic device (1) according to one embodiment comprises a fixed frame (42), a rotating frame (41) rotatably coupled to the fixed frame (42), a motor (81) provided on the rotating frame (41), and a power transmission assembly (80) provided to transmit power between the motor (81) and the fixed frame (42). The power transmission assembly (80) comprises a first gear (100) connected to the rotating frame (41) and a second gear (200) connected to the fixed frame (42) and provided to engage with the first gear (100). The second gear (200) is provided to engage with the first gear (100) at a first position (P1) and to disengage from the first gear (100) at a second position (P2).

[0110] The fixed frame (42) may include a guide rib (60) that supports the second gear (200) so that the second gear (200) is positioned at the first position (P1).

[0111] The second gear (200) may include a guide groove (206) that accommodates the guide rib (60).

[0112] The second gear (200) may be characterized by moving downward and being placed at the second position (P2) with the guide rib (60) removed from the guide groove (206).

[0113] The device further includes a connecting member (220) connecting the fixed frame (42) and the second gear (200), wherein the fixed frame (42) includes a through hole (70) formed to allow the connecting member (220) to pass through, and the second gear (200) may include a connecting hole (202) formed to allow the connecting member (220) to pass through.

[0114] The size of the through hole (70) may be formed larger than the size of the connecting hole (202) so that the second gear (200) falls when the fastening force of the connecting member (220) is weakened.

[0115] The above through hole (70) may be in the shape of a fan.

[0116] The above through holes (70) can be provided in multiple numbers.

[0117] The above connecting member (220) may further include a bracket (210) coupled to the second gear (200) so that it can be connected to the second gear (200).

[0118] It may further include a base (43) that is coupled with the rotating frame (41) and accommodates the motor (81).

[0119] The base (43) may be provided to support a part of the power transmission assembly (80).

[0120] The power transmission assembly (80) may further include a worm gear (82) that extends in the direction of the rotation axis of the motor (81) and is connected to the motor (81).

[0121] The power transmission assembly (80) may further include a helical gear (83) connecting the worm gear (82) and the first gear (100).

[0122] The second position (P2) may be a lower position than the first position (P1).

[0123] An electronic device (1) according to one embodiment comprises a housing (10), a base (43) disposed inside the housing (10), a rotating frame (41) coupled to the base (43), a fixed frame (42) connected to the rotating frame (41), a motor (81) that generates power, and a power transmission assembly (80) comprising a first gear (100) connected to the rotating frame (41) and a second gear (200) connected to the fixed frame (42), wherein the second gear (200) engages with the first gear (100) at a first position (P1) and disengages from the first gear (100) at a second position (P2).

[0124] The power transmission assembly (80) may be configured to transmit power from the motor (81) to the first gear (100) and to transmit power from the first gear (100) to the second gear (200).

[0125] The above rotating frame (41) may be arranged to rotate relative to the above fixed frame (42).

[0126] The fixed frame (42) may include a guide rib (60) that protrudes in a direction in which the second gear (200) is connected to the fixed frame (42) so that the second gear (200) is positioned at the first position (P1).

[0127] The second gear (200) may include a guide groove (206) that accommodates the guide rib (60).

[0128] The above through hole (70) can support the second gear (200) so that the fixed frame (42) positions the second gear (200) at the second position (P2).

[0129] According to the concept of the present disclosure, the second gear may be disengaged from the first gear. Accordingly, the rotating frame may rotate relative to the fixed frame regardless of the power transmission direction of the power transmission assembly.

[0130] According to the concept of the present disclosure, a guide rib and a guide groove may be included to fix the second gear in a first position. Accordingly, the first gear and the second gear can maintain an engaged state.

[0131] According to the concept of the present disclosure, the electronic device may include a structure in which the meshing of the first gear and the second gear can be disengaged. Accordingly, the electronic device may include a power assembly with a large reduction ratio to amplify and transmit power.

[0132] The effects obtainable from the present disclosure are not limited to those mentioned above, and other unmentioned effects will be clearly understood by those skilled in the art to which the present disclosure belongs.

[0133] Specific embodiments have been illustrated and described above. However, the invention is not limited to the embodiments described above, and those skilled in the art may make various modifications without departing from the essence of the technical concept of the invention as described in the following claims.

Claims

1. Fixed frame; A rotating frame rotatably coupled to the above fixed frame; A motor provided on the above-mentioned rotating frame; and A power transmission assembly provided to transmit power between the motor and the fixed frame; comprising The above power transmission assembly is, A first gear connected to the above-mentioned rotating frame and It includes a second gear connected to the fixed frame and arranged to mesh with the first gear, An electronic device configured such that the second gear engages with the first gear at a first position and disengages from the first gear at a second position.

2. In Paragraph 1, The above fixed frame is an electronic device comprising a guide rib that supports the second gear so that the second gear is positioned at the first position.

3. In Paragraph 2, The above second gear is an electronic device comprising a guide groove that accommodates the guide rib.

4. In Paragraph 3, An electronic device characterized in that the second gear moves downward and is placed in the second position with the guide rib removed from the guide groove.

5. In Paragraph 1, It further includes a connecting member connecting the fixed frame and the second gear; The above fixed frame includes a through hole formed to allow the connecting member to pass through, and The above second gear is an electronic device comprising a connecting hole formed to allow the connecting member to pass through.

6. In Paragraph 5, An electronic device in which the size of the through hole is formed larger than the size of the connecting hole so that the second gear drops when the fastening force of the connecting member is weakened.

7. In Paragraph 6, The above-mentioned through hole is a fan-shaped electronic device.

8. In Paragraph 6, The above through holes are provided in multiple electronic devices.

9. In Paragraph 5, An electronic device further comprising a bracket coupled to the second gear so that the connecting member can be connected to the second gear.

10. In Paragraph 1, An electronic device further comprising a base that is coupled to the above-mentioned rotating frame and accommodates the above-mentioned motor.

11. In Paragraph 10, The above base is an electronic device provided to support a part of the above power transmission assembly.

12. In Paragraph 11, The above power transmission assembly is an electronic device further comprising a worm gear that extends in the direction of the rotational axis of the motor and is connected to the motor.

13. In Paragraph 12, An electronic device in which a power transmission assembly further includes a helical gear connecting the worm gear and the first gear.

14. In Paragraph 1, An electronic device in which the second position is lower than the first position.

15. Housing; A base disposed inside the above housing; A rotating frame coupled to the above base; A fixed frame connected to the above rotating frame; A motor that generates power; and A power transmission assembly comprising a first gear connected to the rotating frame and a second gear connected to the fixed frame; The electronic device wherein the second gear engages with the first gear at a first position and is disengaged from the first gear at a second position.

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