KR102407645B1 - Apparatus for outputting sound and hub for communication network - Google Patents

Abstract

A hub of the present invention includes: a hub body having a speaker for outputting sound; a communication module disposed on the hub body and performing wireless communication with surrounding devices; a hub base supporting the hub body from a lower side; Disc-shaped window made of a transparent material; a display panel for outputting an interface screen configured based on information exchanged through the communication module; and a cover housing coupled to an upper portion of the hub body, the display panel is disposed inside, the window is disposed above the display panel, and an opening in which the window is disposed is formed on an upper surface of the cover housing, wherein the opening is A vector normal to a predetermined plane belonging to it forms an acute angle with a horizontal plane, a vector obtained by orthogonal projection of the normal vector to the horizontal plane faces forward, and the inner surface of the cover housing is downward from the upper end defining the opening. A certain portion within a predetermined distance is parallel to the normal vector, and the window has an upper surface facing the direction in which the normal vector is directed in a region defined by a portion parallel to the normal vector among the inner surfaces of the cover housing. are placed

Description

Hub for sound output devices and communication networks

The present invention relates to an audio output device and a hub for a communication network.

Techniques for establishing a network in a certain space, such as a home or office, are known by using devices that communicate with each other through wired/wireless communication. Various devices having communication functions are connected to the network.

Conventionally, a network is established by connecting home appliances such as washing machines, refrigerators, and air conditioners to an access point (AP) connected to the Internet by wire/wireless connection, and through a terminal (eg, a smart phone) connected to the Internet. Information was shared with the home appliance. In this method, since the information obtained from the home appliance is limited, there is a limit to the functions that can be implemented through the terminal. For example, when controlling the refrigerator through the terminal, since sensors provided in the refrigerator cannot be changed, information that the terminal can share with the refrigerator is also limited.

Recently, Internet of Things (IoT) technology is attracting attention as a technology that can overcome these problems, which is a technology that connects objects through wired/wireless networks to share information between objects. Internet of Things (IoT) technology adds communication and sensor functions to various devices, so that devices can send or receive information on their own, process information, and operate automatically.

In response to such a diversified network environment, it is necessary to develop a hub that manages devices in an integrated way and can more actively communicate with users based on information shared with devices.

In particular, the hub also functions to output sound. In such a device, various sound data such as music, recording, notification, and sound effect are digitized and stored, and the stored data is reproduced and output according to a predetermined program.

Conventionally, operation buttons for simply reproducing sound are provided, and a response to the input of the operation button is output as an effect sound such as a beep sound or a melody. In this structure, the amount of information that can be output is limited, and in particular, when a network is built with IoT devices by adding a communication function to such a device, its utility is also very limited. In addition, an interface may be configured by utilizing a smart phone interworking with the device, but this method provides various advantages due to the mobility, scalability, and versatility of the smart phone, but in a certain space such as home or office Rather than directly manipulating the interface provided in the device, there is a troublesome problem.

In this aspect, it is conceivable to arrange a display for outputting an interface screen and a window on the upper side of the display so that the interface screen is visible from the outside. At this time, since the window is a part constituting the exterior of the hub, it is necessary to pay close attention to the structure for installing the window.

The problem to be solved by the present invention includes a display for displaying an interface screen displaying information exchanged through a communication module for wireless communication with a peripheral device, and a window so that the interface screen can be viewed from the outside, wherein the window is It is to provide a hub constituting the upper surface of the hub. Here, the window is located in the open area of the upper surface of the cover housing constituting the upper portion of the harb. One of the problems to be solved by the present invention is, in consideration of the freshness of the user looking at the window, when the window is inclined with respect to a horizontal plane, the cover defining the side surface of the window and the open area The distance between the inner surfaces of the housing is to be constant everywhere.

Another problem to be solved by the present invention is that a mold used to form the exterior of the cover housing and a mold forming a portion defining a region where the window is disposed among the inner surfaces of the cover housing are taken out in different directions It is to design the shape of the cover housing so that it can be

The hub of the present invention includes a main body having a speaker for outputting sound, a communication module disposed on the main body and communicating wirelessly with peripheral devices, a base supporting the main body from the lower side, and a circle made of a transparent material A plate-shaped window, a display for outputting an interface screen configured based on information exchanged through the communication module, is coupled to the upper portion of the main body, the display is disposed inside, and the window is disposed above the display and a cover housing in which an opening through which the window is disposed is formed.

The opening of the cover housing is located on a plane forming an acute angle with a horizontal plane. That is, the normal vector to the plane forms an acute angle with the horizontal plane. Furthermore, a vector normal to the plane to which the opening belongs forms an acute angle with a horizontal plane, and a vector obtained by orthogonal projection of the normal vector onto the horizontal plane faces forward. In this structure, the lowest part of the opening is located in front of the hub, and the highest part is located in the front of the hub.

A portion of the inner surface of the cover housing within a predetermined distance downward from the upper end defining the opening is parallel to the normal vector, and the window is formed by a portion parallel to the normal vector among the inner surface of the cover housing. placed within a limited area.

The upper surface of the window is disposed to face the direction in which the normal vector is directed, and therefore, a portion of the inner surface of the cover housing that defines an area in which the window is disposed is also parallel to the side surface of the window.

Viewed from the other side, the upper surface of the window is parallel to the plane to which the opening of the cover housing belongs. In other words, the normal vector to the upper surface of the window forms an acute angle with the horizontal plane, and the normal vector to the horizontal plane The vector obtained by orthographic projection is directed forward.

In the hub of the present invention, the window arranged inclined with respect to the horizontal plane and the inner surface of the cover housing surrounding the side surface of the window are formed in parallel, so that the distance between the window and the inner surface of the cover housing is formed in any part. It can be made constant, and there is an effect that the appearance of the upper surface of the hub becomes beautiful.

In particular, even when the window is circular, it is possible to maintain a constant distance between the window and the inner surface of the cover housing.

1 illustrates a home network system according to an embodiment of the present invention.
2 illustrates a home network system according to another embodiment of the present invention.
3 is a perspective view illustrating a hub according to an embodiment of the present invention.
4 is a front view (a) of the hub, and a cross-sectional view (b) taken along A1-A1 shown in (a).
FIG. 5 is an enlarged view of a portion of FIG. 4 .
6A is a right side view of the hub;
6B is a cross-sectional view of the grill taken at each part shown in FIG. 6A.
7 is a block diagram illustrating a control relationship between main parts constituting a hub.
8 is an exploded perspective view of the cover;
9 shows the cover from which the window is removed.
10A is a perspective view showing an upper surface of the window support;
10B is a perspective view showing a bottom surface of the window support.
10C is a right side view of the window support.
10D is a bottom view of the window support.
11 is a view of the cover shown in FIG. 9 from the front.
12A is a cross-sectional view taken along line B3-B3 shown in FIG. 11 .
12B is a cross-sectional view taken along A3-A3 shown in FIG. 11 .
12C is a cross-sectional view taken along line C3-C3 shown in FIG. 11 .
12D is a cross-sectional view taken along D3-D3 indicated in FIG. 11 .
13 is a right side view of the cover;
14A is a cross-sectional view taken along F1-F1 of FIG. 13 .
14B is a cross-sectional view taken along F2-F2 of FIG. 13 .
FIG. 15 shows the window support removed from the assembly shown in FIG. 9 ;
Figure 16 shows the display removed from the assembly shown in Figure 15;
17 is a plan view of the display PCB.
18 is a perspective view showing a bottom surface of the display PCB.
19 is an exploded perspective view of the cover and the volume button;
20 is a plan view (a) and a perspective view (b) of the cover housing.
21 is a rear view of the cover housing;
22 is a perspective view showing the main body so that the upper surface is visible.
23 is a perspective view showing the main body so that the bottom surface is visible.
24 shows a front case (a) and a rear case (b).
25 shows the rear side of the main body.
26 is a view showing the positions of the antennas connected to the Wi-Fi module.
27 is a view showing positions of an antenna connected to a Bluetooth module and an antenna connected to a Zigbi module.
28 is an exploded perspective view of the main body, the heat sink, the main PCB, the base body, and the support rubber.
29 is an enlarged perspective view of the support tab of the heat sink;
30 is a view showing a coupling structure between the body and the base.
31 is a view of the base from the front;
32 is a cross-sectional view showing the coupling structure of the main body, the grill, and the speaker case.
33 shows the bottom of the base.
34 is an exploded perspective view of the base;

Advantages and features of the present invention and methods of achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only these embodiments allow the disclosure of the present invention to be complete, and common knowledge in the art to which the present invention pertains It is provided to fully inform those who have the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout.

In addition, expressions such as “first” and “second” described in the claims are given according to the order described in the claims, and when the same word is written after them, it is only for the purpose of distinguishing them from each other, and the following It is not combined with a word to form a proper noun. therefore. It specifies that the word to which expressions such as “first”, “second”, etc. refer to should be understood through the limitations described in the claims and the detailed description of the invention.

1 illustrates a network system according to an embodiment of the present invention.

A network system is an aggregate of devices that construct a network by mutual communication within a certain space, such as a home or office. As an embodiment of such a network system, FIG. 1 shows a home network system built in a home.

Hereinafter, the device 1 is exemplified by a hub 1 for a communication network having a sound output function, but is not necessarily limited thereto. It is specified that the device 1 may be referred to as a sound output device depending on the viewpoint.

1, the network system according to an embodiment of the present invention is an accessory (accessary, 2, 3a, 3b), a gateway (gateway, 4), an access point (Access Point, 7) and a hub (1) or sound It may include an output device.

Accessories 2 , 3a , 3b , gateway 4 , access point 7 and/or hub 1 can communicate with each other according to a predetermined protocol, and such communication is Wi-Fi , Ethernet, Zigbee, Z-wave, Bluetooth, and the like.

Wi-Fi is a brand name of Wi-Fi Alliance, but is a term commonly used as a wireless communication technology. It refers to a series of technologies that support LAN connection, device-to-device connection (Wi-Fi P2P), wireless LAN connection between devices, and PAN/LAN/WAN configuration. Hereinafter, “Wi-Fi module” is defined as a device that performs wireless communication based on Wi-Fi technology.

Ethernet is a networking technology according to the 802.3 standard of the International Association of Electronics Engineers (IEEE), and is the most representative standard of local area network (LAN) hardware, protocols, and cables. Ethernet mainly uses a carrier sense multiple access with collision detection (CSMA/CD) method for data transmission. Hereinafter, “Ethernet module” is defined as a device that communicates based on Ethernet technology.

Zigbee is a wireless network technology for constructing and communicating with a personal communication network using a small, low-power digital radio, and is a communication method according to the regulations set by IEEE 802.15. Due to its small size, low power consumption and low cost, it is attracting attention as a ubiquitous construction solution for home networks and other applications.

The Zigbi protocol consists of a physical layer, a media access control (MAC) layer, a network layer, and an application layer. Zigbi's physical layer and MAC layer are defined in the IEEE 802.15.4 standard.

Zigbee network layer supports routing and addressing for tree structure and mesh structure, and ZigBee Home Automation Public Profile and ZigBee Smart Energy Profile are typically used as application profiles. In addition, RF4CE, a new Zigbi specification, defines a solution for remote control of home appliances and a simple network stack for star topology. RF4CE uses a frequency band of 2.4GHz and provides security using AES-128.

Zigbi is mainly used in fields that require a long battery life and security while sufficient at a low transmission speed, and is suitable for periodic or intermittent data transmission or data transmission for simple signal transmission such as sensors and input devices. Applications include wireless light switches, household electricity meters, traffic management systems, and other personal and industrial devices requiring short-range, low-speed communication. Zigbee has the advantage of being relatively simpler and cheaper than other WPAN technologies such as Bluetooth or Wi-Fi. Hereinafter, the “Zigbi module” is defined as a device that performs wireless communication based on the Zigbi technology.

Z-wave is a wireless transmission method designed for devices requiring low power and low bandwidth, such as home automation and sensor networks, to provide reliable communication between one or more nodes and control units in a wireless network. for the main purpose G-Wave consists of a physical layer, media access control (MAC) layer, transport layer, routing layer, and application layer. , and provides a speed of 200 kbps. Hereinafter, the “G-Wave module” is defined as a device that performs wireless communication based on the G-Wave technology.

The accessory 2 may be installed at any location desired by the user, and may include various sensors such as a temperature sensor, a humidity sensor, a vibration sensor, a proximity sensor, and an infrared (IR) sensor. The information obtained by these sensors may be transmitted to the hub 1 through a network, and conversely, it is also possible that a signal for controlling the sensors from the hub 1 is transmitted to the accessory 2 .

In addition, the accessory 2 may be configured to enable remote control of home appliances located in the vicinity. For example, the accessory 2 may include a transmitting device that transmits an infrared signal according to a control signal transmitted through a network.

On the other hand, the infrared sensor may include a transmitter for irradiating infrared rays and a receiver for receiving the infrared rays irradiated from the transmitter when the object hits and is reflected.

The access point (Access Point, 7) is a device that relays wireless equipment to connect to the network, and connects the home network to the Internet. The home appliance 5, the hub 1, the accessory 3b, and the like may be connected to the access point 7 by wire (eg, Ethernet) or wirelessly (eg, Wi-Fi).

The gateway 4 is a device that connects these networks to each other so that networks with different protocols can exchange information with each other. For example, the accessories 2 and 3b and the access point 7 may be relayed by converting a Zigbee (or G-Wave) signal received from the accessories 2 and 3b into a Wi-Fi signal.

Meanwhile, the home network system may be connected to the Internet through the access point 7 , and may be connected to the server 8 providing a service through the Internet. The server (or cloud) 8 may be managed by a manufacturer who manufactures accessories 2, 3a, 3b and/or hub 1, a seller who sells them, or a service provider contracted with the manufacturer or seller. have. The server 8 stores software and data, and the data may be received from a home network. Upon request from the hub 1, the server 8 may transmit the stored software or data to the home network via the Internet.

The server 8 may exchange information with a mobile terminal such as a personal computer (PC) or a smart phone connected to the Internet. Information transmitted from the hub 1 or the accessories 2 , 3a , 3b may be stored in the server 8 , and such information may be transmitted to the mobile terminal 6 connected to the server 8 . In addition, information transmitted from the mobile terminal 6 may also be transmitted to the hub 1 or the accessories 2, 3a, 3b via the server 8, and thus the hub 1 via the mobile terminal 6 ) or accessories (2, 3a, 3b) can also be controlled.

As a kind of mobile terminal 6, a smartphone (smart phone), which has been widely used recently, provides a graphic-based convenient UI, and thus controls the accessories 2, 3a, 3b through the UI, or It is possible to process and display the information received from 2, 3a, 3b). In addition, by updating an application mounted on the smartphone, functions that can be implemented through the accessories 2 , 3a , 3b may be expanded or changed. However, it is also possible to control the accessories 2, 3a, 3b with only the hub 1 without using the mobile terminal 6, or to process and display information received from the accessories 2, 3a, 3b.

Through the gateway 4 and the access point 7, communication between the hub 1 and the accessories 2, 3a, 3b may be made, and specifically, a signal output from the accessories 2 and 3b (or . to be transmitted to the accessories (2, 3b). According to an embodiment, communication between the accessories 2 , 3a , 3b and the hub 1 is possible even when the network is disconnected from the Internet.

In addition to the accessories 2, 3a, and 3b described above, various types of accessories may be provided according to embodiments. For example, the accessory may be configured to include an air quality sensor that detects air quality, a smart plug, a CT sensor, a nest temperature controller, a sleep sensor, and the like.

The accessory may be attached to the household appliance 5 . For example, by attaching an accessory having a vibration sensor to the washing machine, vibration generated during operation of the washing machine may be sensed, and a signal output from the vibration sensor may be transmitted to a network according to the sensed vibration.

Not limited to this, the accessory may be attached to a place other than the home appliance 5 . For example, when it is desired to detect opening and closing of a door in a residence, an accessory having a motion detection sensor (eg, an infrared sensor) may be attached to a wall surface to detect the opening/closing operation of the door. If the opening/closing operation of the door in the dwelling is not detected for a long period of time, there is a possibility that an emergency has occurred to the resident, and this situation may be notified to the preset mobile terminal 6 .

Furthermore, when the opening/closing operation of the refrigerator door is sensed using the accessory having the motion detection sensor, and the opening/closing operation of the refrigerator door is not detected for a long period of time, there is a possibility that an accident has occurred to the resident; Such circumstances may be notified to the preset mobile terminal 6 .

In such various embodiments, the signal transmitted from the accessory through the network may be received by the mobile terminal 6 , and an application mounted on the mobile terminal 6 analyzes the received signal, and the home appliance 5 ) operation status (eg, unbalance of washing machine) or door opening/closing information can be grasped, and results derived from processing such information or information (eg, warning indicating abnormal operation of washing machine, or long-term A bar that the door is not opened, a notification requesting confirmation of the resident's identity, etc.) may be displayed through the display or speaker of the mobile terminal 6 .

On the other hand, the hub 1 may include a microphone (not shown), extract a command from the voice input through the microphone according to a pre-loaded voice recognition program, and perform control accordingly.

2 illustrates a home network system according to another embodiment of the present invention.

The home network system according to another embodiment of the present invention is different from the above-described embodiment in that the gateway 4 is not provided and the hub 1 serves as the gateway 4 functions. and other features are substantially the same as in the case of the above-described embodiment.

Accessories (2, 3b) do not share a gateway (4, see Fig. 1), it is possible to communicate directly with the hub (1). Preferably, the accessories 2 and 3b and the hub 1 communicate through a jigbi method. In this case, the accessories 2 and 3b and the hub 1 may each be provided with a jigbi module.

3 is a perspective view illustrating a hub according to an embodiment of the present invention. 4 is a front view (a) of the hub, and a cross-sectional view (b) taken along A1-A1 shown in (a). FIG. 5 is an enlarged view of a portion of FIG. 4 . 6A is a right side view of the hub; 6B is a cross-sectional view of the grill taken at each part shown in FIG. 6A. 7 is a block diagram illustrating a control relationship between main parts constituting a hub. 8 is an exploded perspective view of the cover; 9 shows the cover from which the window is removed.

3 to 9 , the hub (or hub 1 ) according to an embodiment of the present invention may include a cover 10 , a body 40 , a grill 20 , and a base 30 . . The main body 40 is supported by the base 30 located at the lower side, and the cover 10 may be coupled to the upper portion of the main body 40 .

The body 40 is disposed within the grill 20 . The entire body 40 does not have to be completely disposed within the grill 20 , and as in the embodiment, a portion of the body 40 may protrude through the top of the grill 20 . The grill 20 is formed with a plurality of through-holes (20h), is formed in a vertical long cylindrical shape, and surrounds the main body (40).

A porous filter (not shown) may be attached to the inner surface of the grill 20 so that dust does not enter the grill 20 through the through hole 20h. The filter may be made of a material having fine pores, such as mesh or nonwoven fabric. The filter may be attached to the inner surface of the grill 20 by an adhesive member such as a double-sided tape. The filter also serves to conceal the components of the speakers 43 and 44 and the body cases 41 and 42 disposed in the grill 20 from being seen from the outside through the through hole 20h.

On the other hand, in FIG. 3, a through hole 20h is formed in a part of the grill 20, and is omitted in another part, but this is omitted to avoid complicating the drawing to the last, and the through hole 20h is the grill 20. (see FIG. 38.), the sound output from the speakers 43 and 44, which will be described later, can be evenly spread in front, rear, left, right, and all directions through the through holes 20h.

The cover 10 may include a window 11 , a window support 12 , a display 13 , a display printed circuit board (PCB) 14 , and a cover housing 15 . The window 11 , the window support 12 , the display 13 , and the display PCB 14 may be disposed in the cover housing 15 .

4 to 5 , the cover housing 15 is made of synthetic resin and is coupled to the upper portion of the main body 40 , and an opening 15h is formed on the upper surface. The cover housing 15 has a cylindrical shape, the upper end of which is a side wall 151 defining an opening 15h, and a partition plate extending from the inner surface of the side wall 151 to divide the inside of the side wall 151 into upper and lower portions ( 152) may be included. The display PCB 14 , the display 13 , the window support 12 , and the window 11 are disposed above the partition plate 152 . (For the detailed configuration of the cover housing 15, further refer to FIGS. 19 to 20.)

The lower end 151a of the side wall 151 is preferably in contact with the upper end of the grill 20, but a fine play due to tolerance may exist between the two. When viewed from above, the lower end 151a of the side wall 151 at least partially overlaps the upper end of the grill 20 . Although there is a gap between the outer surface of the side wall 151 and the outer surface of the grill 20, except for the gap, the outer surface of the side wall 151 and the outer surface of the grill 20 as a whole are one form a continuous shape.

The upper holding part 153 extends downward from the lower end 151a of the side wall 151 and is coupled to the grill 20 . As such, the coupling of the upper end holding part 153 and the grill 20 does not use a separate fastening member such as a bolt, but the upper end holding part 153 is inserted into the opening of the upper end of the grill 20 (or , fitted), and preferably, the grill 20 or the upper holding part 153 itself is an interference fit method using the elastic / restoring force.

The upper holding part 153 is located more inside than the lower end of the side wall 151 (that is, the outer surface of the cover housing 15 is recessed from the lower end 151a of the side wall 151 ) of the upper holding part 153 . ), thus, at the lower end of the side wall 151 , extending from the outer surface of the side wall 151 to the upper end holding portion 153 , a surface 157 facing the upper end of the grill 20 is formed do.

A protrusion 154 may protrude from the inner surface of the side wall 151 of the cover housing 15 , and a protrusion insertion groove 418 coupled to the protrusion 154 may be formed on the front portion of the main body 40 . . In the process of assembling the cover housing 15 and the main body 40, the protrusion 154 moves along the outer surface of the main body 40 and reaches the protrusion insertion groove 418, the cover housing 15 itself made of a synthetic resin material. Due to the elasticity of the projection is inserted into the insertion groove (418).

Since the outer surface of the upper holding part 153 is in contact with the inner surface of the grill 20, the shape of the upper end of the grill 20 is maintained. In particular, when the grill 20 is made of a metal material, since the grill 20 is deformed corresponding to the shape of the upper holding part 153 , the upper end of the grill 20 corresponds to the upper holding part 153 . can be kept in shape.

On the other hand, when the upper holding part 153 extends in an oval shape along the lower end 151a of the side wall 151, a metal plate is rolled to form a cylindrical grill 20 having a circular cross-section, and then the grill 20 ), when the upper end is inserted into the upper holding part 153 , the shape of the grill 20 is also transformed into an oval shape corresponding to the shape of the upper holding part 153 , and can be maintained in this deformed state.

As in the embodiment, a circular window 11 having a radius of r is provided at a predetermined angle with respect to a predetermined horizontal plane (indicated by θ1 in FIG. 6A, which is an acute angle. Hereinafter, also referred to as a “first angle”). In the case where the vector Vh obtained by orthogonally projecting the normal vector Vs to the upper surface of the window 11 on the horizontal plane is directed forward, the form in which the window 11 is orthogonal projected on the horizontal plane is rcosθ1 in the front-rear direction. It becomes an ellipse having a minor radius and a major radius of r in the left and right directions. Therefore, for a sense of unity of the outer shape of the hub 1, it is preferable that the cross section of the grill 20 also has a shape corresponding to the ellipse (that is, a shape in which the ratio of the minor radius to the major radius is cosθ1: 1), and the upper holding part 153 ) by forming a shape corresponding to the ellipse, it is possible to maintain the shape of the cross section of the grill 20 in a shape corresponding to the ellipse. Here, the term "corresponding shape" includes not only the case where the shapes of both shapes completely coincide with each other, but also the case where both shapes are similar to each other (for example, when the ratio of the minor radius to the major radius is the same), Hereinafter, it is defined with the same meaning.

Here, the angle θ1 at which the window 11 is inclined with respect to the horizontal plane is determined in consideration of the user's gaze in a general use environment, and the hub 1 is mounted on a cradle having a height of about 1 m, such as a kitchen counter or dining table. In this case, the gaze of a general adult located in front of the hub 1 is determined to form an angle close to 90 degrees with the upper surface of the window 11 , and preferably, about 20 degrees, but it is not necessarily limited thereto. .

Meanwhile, the display panel 131 may be disposed to be inclined at a predetermined angle with respect to the horizontal so that the displayed screen faces upward in the front, and is preferably inclined at the same angle θ1 as the window 11 . The window support plate 121 to be described later is also inclined at the same angle as the display panel 131 (or the window 11 ).

More specifically, referring to FIGS. 6A to 6B , the upper end of the side wall 151 of the cover housing 15 has a circular shape with an outer diameter L1, and the outer diameter of the lower end 151a of the side wall 151 is in a horizontal plane. It is inclined at an angle θ2 (θ2 < θ1. Hereinafter, θ2 is also referred to as a “second angle”.), and has a diameter of La in the left-right direction and a diameter of Lb in the front-rear direction. Here, since the outer surface of the side wall 151 is inclined at a predetermined angle θ3 to the vertical line, the form in which the cross-section S1 of FIG. 6B is orthogonally projected on the horizontal plane and the form in which the cross-section S2 is orthogonally projected on the horizontal surface of FIG. 6B do not exactly match, but , θ3 has a sufficiently small value (preferably 5 degrees or less), La has a value close to L1, hereinafter, it is assumed that La=L1. Furthermore, if the difference between θ1 and θ2 is sufficiently small (preferably 5 degrees or less), Lb also has a value close to L1. Hereinafter, it is assumed that Lb=L1.

Here, θ3 indicates an angle formed by the outer surface of the side wall 151 with a vertical line, and may have a constant value in the entire section of the outer surface of the side wall 151, but the value varies along the circumference of the side wall 151 It is also possible to be variable.

Meanwhile, referring to cross-sections S3 and S4 of FIG. 6B , the grill 20 has an elliptical outer diameter (L1>L2), and has a long diameter of L1 in the left-right direction and a short diameter of L2 in the front-rear direction. Here, as assumed above, when La=L1 and Lb=L1, L2 becomes L1cosθ1. That is, the outer shape of the grill 20 projected on the horizontal plane becomes an ellipse having a diameter L2 in the front-rear direction shorter than a direct spacing L1 in the left-right direction. Even though the window 11 is disposed at an angle, when the hub 1 is viewed from above, the overall shape becomes an elliptical shape to form a sense of unity.

Since the side wall 151 is located on the upper side of the grill 20 , it forms the exterior of the hub 1 , but the top holding part 153 is completely inserted into the grill 20 and covered by the grill 20 . As a result, the appearance of the hub 1 is invisible.

The positioning protrusion 156 may protrude from the lower end of the side wall 151, and the positioning protrusion 156 (refer to FIG. 21.) is inserted into the upper end of the grill 20 in a state in which the grill 20 is positioned. Positioning grooves 26 (see Fig. 38) may be formed.

The window 11 may be disposed in the opening 15h of the cover housing 15 . The window 11 is made by processing a transparent plate of a certain thickness, and a side surface (or an outer circumferential surface) is orthogonal to an upper surface and a lower surface.

The inner surface of the cover housing 15 has a certain portion 151b extending downward from the upper end of the cover housing 15 in the direction in which the upper surface of the window 11 faces (that is, the direction in which the normal vector Vs in FIG. 6A is directed) ) is parallel to The inner surface 151a of the upper end of the sidewall 151 is a surface defining the opening 15h. Hereinafter, the inner surface 151a of the upper end of the sidewall 151 is referred to as an opening limiting surface. The opening limiting surface 151a has a cylindrical shape extending from the periphery of the opening 15h, and the window 11 is disposed inside surrounded by the opening limiting surface 151a. Preferably, the top surface of the window 11 belongs to the same plane as the top of the cover housing 15 (or the plane to which the opening 15h belongs), so that the top surface of the hub 1 is made of a single plane. A sense of unity is created.

The opening limiting surface 151a is formed of a plane parallel to the vector Vs at any position. That is, even if the cover housing 15 is cut in an arbitrary plane parallel to the vector Vs, the opening limiting surface 151a on the cross-section is parallel to the vector Vs.

Since the side surfaces of the opening limiting surface 151a and the window 11 are parallel to each other, if the center of the window 11 and the center of the opening limiting surface 151a are aligned along the vector Vs, the entire section of the side surface of the window 11 is There is an effect that a constant distance g can be maintained with the opening limiting surface 151a. When the hub 1 is viewed from above, a certain distance g is maintained between the window 11 and the upper end of the cover housing 15 , and thus, the product appears to have a high degree of completion. The gap g is such that the side surface of the window 11 does not interfere with the opening limiting surface 151a when the window 11 is pressed to operate the contact switches 181a, 181b, 181c, and 181d. It is desirable to set it to a minimum.

When the cover housing 15 is cut in an arbitrary vertical plane, on the cut surface, the outer surface of the side wall 151 is parallel to the normal vector Vs, or is progressively further away from the normal vector Vs as it goes downward. can be achieved When the cover housing 15 is injection molded, the cover housing 15 is taken out from the first mold forming the side wall 151 in a vertical downward direction. Therefore, in order for the cover housing 15 to be easily removed from the first mold, the outer surface of the side wall 151 should have the above shape.

On the other hand, in order to form the opening 15h on the upper surface of the cover housing 15, a separate second mold having a core inserted into the opening 15h is required. In a state in which the first mold is removed, the cover housing 15 can be separated from the second mold by moving the second mold. In this case, the movement of the second mold is equal to the normal vector Vs. made in the direction

10A is a perspective view showing an upper surface of the window support; 10B is a perspective view showing a bottom surface of the window support. 10C is a right side view of the window support. 10D is a bottom view of the window support. 11 is a view of the cover shown in FIG. 9 from the front. 12A is a cross-sectional view taken along line B3-B3 shown in FIG. 11 . 12B is a cross-sectional view taken along A3-A3 shown in FIG. 11 . 12C is a cross-sectional view taken along line C3-C3 shown in FIG. 11 . 12D is a cross-sectional view taken along D3-D3 indicated in FIG. 11 . 13 is a right side view of the cover; 14A is a cross-sectional view taken along F1-F1 of FIG. 13 . 14B is a cross-sectional view taken along F2-F2 of FIG. 13 . FIG. 15 shows the window support removed from the assembly shown in FIG. 9 ; Figure 16 shows the display removed from the assembly shown in Figure 15; 17 is a plan view of the display PCB. 18 is a perspective view showing a bottom surface of the display PCB. 19 is an exploded perspective view of the cover and the volume button; 20 is a bottom view (a) and a perspective view (b) of the cover housing. 21 is a rear view of the cover housing; Hereinafter, reference is made to FIGS. 10 to 21 .

8 and 15 to 18 , the display PCB 14 is disposed on the upper surface of the partition plate 152 to support the display 13 from the lower side. The display PCB 14 includes a circuit electrically connected to the display 13 , and the display 13 is connected to the circuit through a connector 132 . Four contact switches 181a, 181b, 181c, and 181d may be disposed on the upper surface of the display PCB 14 in front, rear, left, and right directions with respect to the display 13 .

The display PCB 14 may be formed in a cross shape extending from the center to the front, rear, left, and right sides. In more detail, the substrate 140 on which the circuit of the display PCB 14 is configured includes a first substrate arm 145 and a second substrate arm 146 that extend in all directions of the rear, front, left, and right sides, respectively, from approximately the center. , a third substrate arm 147 and a fourth substrate arm 148 may be included. The substrate 140 has an approximately cross shape, but this shape is not necessarily symmetrical.

15 to 16 , on the upper surface of the partition plate 152 of the cover housing 15 , a rib 152a protruding from a position in contact with the circumference of the display PCB 14 may be formed. The rib 152a does not necessarily have to be formed in a shape corresponding to the entire circumference of the display PCB 14 , and may only be in contact with a portion of the circumference of the display PCB 14 , and as in the embodiment, the circumference of the display PCB 14 . It may be formed at a plurality of points along the In particular, the rib 152a may be formed at positions in contact with the side sides of the substrate arms 145 , 146 , 147 , and 148 (ie, sides extending outwardly from the center of the substrate 140 ).

A first contact switch 181a, a second contact switch 181b, a third contact switch 181c, and a fourth contact switch 181d are disposed on each of the substrate arms 145, 146, 147, and 148. can The contact switches 181a , 181b , 181c , and 181d are electrically connected to a circuit formed on the substrate 140 .

An NFC module 540 (refer to FIG. 7 ) may be disposed on the display PCB 14 . The NFC module 540 enables NFC communication and may be disposed on the NFC mounting unit 146a formed on the second substrate arm 146 . NFC (Near Field Communication) is a contactless communication technology that uses a frequency band of 13.56 MHz as one of radio tag (RFID) technologies. It is a next-generation short-distance communication technology that is attracting attention due to its relatively good security and low price due to its short communication distance. Since both data reading and writing functions can be used, a dongle (reader), which was previously required for RFID use, is not required. It is similar to existing short-distance communication technologies such as Bluetooth, but has the advantage of not having to set up between devices like Bluetooth.

The display 13 is a device that displays an image by receiving an electrical signal, is connected to a circuit of the display PCB 14, and displays an image according to a control signal input through the circuit. The display 13 may include a display panel 131 and a connector 132 connecting the display panel 131 to a circuit of the display PCB 14 (refer to FIG. 8 ). The display panel 131 may be attached to the upper surface of the display PCB 14 by an adhesive member (eg, a double-sided tape 171 (refer to FIG. 17 )).

The display PCB 14 is circuit-connected to the main PCB 48 to be described later through a predetermined cable (not shown), and thus, the control unit for controlling the display 13 is the display PCB 14 or the main PCB 48 . ) can be mounted anywhere. Hereinafter, as an example, the display 13 is controlled by the control unit 82 (refer to FIG. 7 ) mounted on the main PCB 48 . A groove 429 for accommodating the cable may be formed long in the vertical direction on the side surface of the main body 40 .

Various types of information may be displayed on the screen of the display panel 131 . The control unit 82 may control not only the driving of the display panel 131 according to the program stored in the memory 84 , but also the overall operation of the electrical components constituting the hub 1 . A user interface (UI) may be displayed through the display panel 131 , and this interface is implemented by executing the program.

The interface may display reproduction information of the speakers 43 and 44 . For example, various information such as a music play/stop/tune selection menu, a playback state, a song name, singer/album information, lyrics, and volume may be displayed.

When the communication module 50 is provided in the hub 1 , the interface may display information exchanged through the communication module 50 . For example, the interface displays a menu for controlling the accessories 2, 3a, 3b communicating with the communication module 50, or is processed based on information transmitted from the accessories 2, 3a, 3b. information can be displayed. Specifically, information such as the network connection state of the communication module 50 and the temperature, humidity, and brightness sensed by the sensor provided in the accessory 2 may be displayed through the interface. In addition, a menu for controlling the output of the speakers 43 and 44 may be displayed through the interface, for example, a menu for selecting a song or album to be output through the speakers 43 and 44, the album Alternatively, information related to a song (eg, a song title, an album name, a singer), the size of the volume being output, and the like may be displayed.

Manipulation of the menus displayed on the interface is possible through the contact switches 181a, 181b, 181c, and 181d. How the output signal of each of the contact switches 181a, 181b, 181c, and 181d is processed is determined by a program pre-stored in the memory 84 . For example, menus displayed left and right on the interface may be selected according to operation signals of the first and second contact switches 181a and 181b, and operation signals of the third and fourth contact switches 181c and 181d Accordingly, menus displayed vertically on the interface may be selected.

A user may communicate with the Bluetooth module 50b using an external device such as a smart phone or a notebook computer, and various data such as music and images may be stored in the memory 84 through this. In particular, the controller 82 may control the speakers 43 and 44 so that the music stored in the memory 84 is output, and various functions such as music selection, reproduction, and stop are performed by the contact switches 181a, 181b, 181c. , 181d) can be implemented.

Meanwhile, a through hole 140h through which a support boss 122b formed in a window support 12 to be described later passes may be formed in the substrate 140 of the display PCB 14 . The through hole 140h may be formed in the first substrate arm 145 .

Referring to FIG. 18 , a pair of volume control switches 185a and 185b may be provided on the bottom surface of the substrate 140 . The volume control switches 185a and 185b are for adjusting the volume of the speakers 43 and 44 provided in the main body 40 , and may each be configured as a contact switch, and are connected to the circuit of the display PCB 14 . have. The volume control switches (185a, 185b) are the first volume control switch (or the volume increase switch (185a)) that increases the volume of the speaker (43, 44) whenever it is pressed, and the speaker (43, 44) may include a second volume control switch (or the volume reduction switch 185b) that reduces the volume.

The volume control switches 185a and 185b may be disposed on the fourth board arm 148 of the display PCB 14 , and the movable terminals of the volume control switches 185a and 185b (parts pressed for a switching operation) may protrude toward the sidewall 151 of the cover housing 15 .

19 to 20 , an opening 151h in which the volume button 16 is installed may be formed in the sidewall 151 of the cover housing 15 . The volume button 16 may include a dome 161 and an elastic pad 162 .

The elastic pad 162 may be formed of one component made of a material having elasticity (preferably, rubber). The elastic pad 162 has a plate-like shape elongated along the circumferential direction of the sidewall 151, and includes a support portion 162a disposed inside the housing 15, and a pair protruding from the inner surface of the support portion 162a. of the switch movable protrusions 162b and 162c, and a dome fixing protrusion 162d protruding from the outer surface of the support 162a and exposed to the outside through the opening 151h. The support portion 162a is larger than the opening 151h and does not escape to the outside of the cover housing 15 through the opening 151h unless it is bent by an external force.

The dome 161 is made of synthetic resin, a groove is formed on one surface, and a dome fixing protrusion 162d is inserted into the groove. Preferably, the dome fixing protrusion 162d is press-fitted into the groove, and even if a separate adhesive means is not applied, it is easily removed from the dome 161 by the elasticity or restoring force of the material itself of the dome fixing protrusion 162d. not separated However, the present invention is not limited thereto, and the dome 161 and the dome fixing protrusion 162d may be coupled to each other by an adhesive member such as a double-sided tape.

The dome 161 may have an anti-separation protrusion 161c protruding from the upper surface and/or the lower surface. The separation preventing protrusion 161c is located inside the cover housing 15 , and by being caught around the opening 151h, the dome 161 is more reliably prevented from being separated from the cover housing 15 . In the embodiment, a pair of separation prevention protrusions 161c are formed on the upper and lower surfaces of the dome 161, respectively, but the present invention is not limited thereto.

In a state in which the elastic pad 162 is positioned in the opening 151h, the pair of switch movable protrusions 162b and 162c correspond to the first volume control switch 185a and the second volume control switch 185b, respectively. When the volume increase operation unit 161a or the volume decrease operation unit 161b of the dome 161 is pressed, the switch movable protrusions 162b and 162c of the elastic pad 162 are the volume increase switch 185a. Alternatively, the volume reduction switch 185b is operated, and the volume of the speakers 43 and 44 is adjusted accordingly.

8 to 14 , an approximately circular window support 12 may be disposed above the display 13 . The window support 12 is an injection product of a synthetic resin material, and is preferably formed as a single part. An opening 12h is formed in the window support 12 , and the screen of the display 13 is exposed through the opening 12h.

The opening 12h is formed at a position corresponding to the display panel 131 disposed under the window support 12 , and preferably has a size slightly smaller than that of the display panel 131 . A screen displayed on the display panel 131 may be viewed through the opening 12h.

The display panel 131 is formed in a rectangular shape in which the horizontal width in the left and right directions is longer than the vertical length in the front and rear directions. desirable.

The window support 12 includes a window support plate 121 having an opening 12h formed in the center and a window 11 disposed on an upper surface thereof, and manipulation protrusions 126a and 126b protruding downward from the window support plate 121; 126c and 126d) and a plurality of support bosses 122a, 122b, 122c, and 122d protruding downward from the window support plate 121 may be included.

The support bosses 122a, 122b, 122c, and 122d may extend vertically downward. Like the window 11 , the window support plate 121 may be inclined at a first angle θ1 with respect to the horizontal plane, and in this case, the support bosses 122a , 122b , 122c , and 122d are the window support plate 121 . ) is not orthogonal to, and preferably forms a complementary angle (90-θ1) of the window support plate 121 and θ1.

Hereinafter, each part of the window support plate 121 is, as shown in FIG. 9 , a first area SE1 positioned at the rear with the opening 12h as a center, a second area SE2 positioned at the front, and a left side of the window support plate 121 . It is divided into a third area SE3 located at , and a fourth area SE4 located on the right side.

At least one support boss 122a , 122b , 122c , and 122d may be formed in each of the first area SE1 and the second area SE2 . Four support bosses (122a, 122b, 122c, 122d) may be formed so that the window support plate 121 can be stably supported without being shaken, and among them, the first support boss 122a and the second support boss Reference numeral 122b may be located in the first area SE1 , and the third support boss 122c and the fourth support boss 122d may be formed in the second area SE2 .

The support bosses 122a, 122b, 122c, and 122d are coupled to the cover housing 150 to support the window support plate 121 , and in this case, the window support plate 121 may be spaced apart from the display PCB 14 . At least one of the support bosses 122a, 122b, 122c, and 122d may pass through a region divided by the substrate arms 145, 146, 147, and 148 to be coupled to the partition plate 152, and at least the other It may be coupled to the partition plate 152 through the through hole 140h formed in the substrate arm 145 .

Referring to FIG. 17 , the inside of the cover housing 15 is divided into four regions P1 , P2 , P3 , and P4 by four cross-shaped substrate arms 145 , 146 , 147 , and 148 . Hereinafter, each quadrant is given an order so as to conform to the conventional definition of a quadrant, and P1 is defined as the first quadrant, P2 as the second quadrant, P3 as the third quadrant, and P4 as the fourth quadrant. do.

The first support boss 122a, the third support boss 122c, and the fourth support boss 122d pass through the second quadrant region P2, the third quadrant region P3, and the fourth quadrant region P4, respectively. Thus, it is coupled to the partition plate 152 , and the second support boss 122b passes through the through hole 140h formed in the first substrate arm 145 and is coupled to the partition plate 152 .

The coupling between the support bosses 122a, 122b, 122c, 122d and the partition plate 152 of the cover housing 15 is such that the support bosses 122a, 122b, 122c, 122d are directly coupled to the partition plate 152. It is also possible, as in the embodiment, the support bosses (122a, 122b, 122c, 122d) can be achieved by being coupled to the insertion bosses (154a, 154b, 154c, 154d) formed in the partition plate (152).

In the partition plate 152 of the cover housing 15, at positions corresponding to the first support boss 122a, the second support boss 122b, the third support boss 122c, and the fourth support boss 122d, respectively. A first insertion boss 154a, a second insertion boss 154b, a third insertion boss 154c, and a fourth insertion boss 154d may be formed. The insertion bosses 154a, 154b, 154c, and 154d may protrude downward from the partition plate 152, and each may extend in parallel with the corresponding support bosses 122a, 122b, 122c, and 122d.

The first support boss (122a), the second support boss (122b), the third support boss (122c), and the fourth support boss (122d) are respectively a first insertion boss (154a), a second insertion boss (154b), It is inserted into the 3 insertion boss (154c) and the 4th insertion boss (154d). A fastening hole to which a bolt is fastened may be formed at the lower end of each insertion boss (154a, 154b, 154c, 154d), and the bolt 19 passes through each of the fastening holes from below to support bosses (122a, 122b, 122c, 122d) and may be engaged.

15 to 17 , the cover housing 15 may include at least one ribs 152a, 152b, 152c, 152d, 152e, and 152f protruding upward from the partition plate 152 .

At least one of the ribs 152a, 152b, 152c, 152d, 152e, and 152f (152b, 152c, 152d, 152e, 152f) may be in contact with the circumference of the display panel 131 . However, since the display PCB 14 is disposed on the upper surface of the partition plate 152 , in order for the ribs 152b, 152c, 152d, 152e, and 152f to contact the periphery of the display panel 131, the display PCB 14 should not interfere with To this end, in the present invention, the regions P1, P2, P3, and P4 divided by the cross-shaped display PCB 14 are formed, and the ribs 152b, 152c, 152d, 152e, and 152f are formed on the display PCB 14. It is proposed to use it as a path through which it does not interfere with the

The ribs 152b , 152c , 152d , 152e , 152f may be in any one of the regions P1 , P2 , P3 , P4 divided by the substrate arms 145 , 146 , 147 , 148 of the display PCB 14 . Through the , it may come into contact with the edge of the display panel 131 . The ribs 152b, 152c, 152d, 152e, and 152f function to set the position of the display panel 131 and to maintain the display panel 131 in its original position without being shaken.

The display panel 131 may have a rectangular shape, and at least one of four sides of the display panel 131 may contact the ribs 152b, 152c, 152d, 152e, and 152f.

Among the four sides of the display panel 131 , a pair of sides parallel to each other may be in contact with the ribs, respectively. In the embodiment, horizontal sides (or sides extending in the left and right directions) of the display panel 131 are in contact with the ribs 152b, 152c, and 152d. The ribs 152b , 152c , and 15d may extend long along the horizontal side of the display panel 131 .

The ribs 152b , 152c , and 152c may pass through different regions among the four regions P1 , P2 , P3 , and P4 partitioned by the substrate arms 145 , 146 , 147 , and 148 , respectively. In an embodiment, the rib 152b passes through the second quadrant P2, the rib 152c passes through the third quadrant P3, and the rib 152d passes through the fourth quadrant P4. Accordingly, the display panel 131 is in contact with the rear side (upper horizontal side in the drawing), the left side, and the front side (lower horizontal side in the drawing) of the display panel 131 , respectively.

According to an exemplary embodiment, a rib that passes through the first quadrant P1 and/or the fourth quadrant P4 and contacts the right side of the display panel 131 may be further formed.

A rib (eg, 152b) in contact with one side of the display panel 131 and a rib (eg, 152c) in contact with the other side of the display panel 131 are the substrate arms 145, 146, and 147 , 148 ) may pass through different areas (eg, P2 and P3) among the areas P1, P2, P3, and P4.

The window support plate 121 may be bent around each of the support bosses 122a, 122b, 122c, and 122d when pressure is applied within a certain limit due to the characteristics of the material, and this deformation occurs when the pressure is removed. It is elastic that restores its shape to its original state.

The first operation protrusion 126a, the second operation projection 126b, the third operation projection 126c, and the fourth operation projection 126d of the window support 12 are first contacts arranged on the display PCB 14, respectively. The switch 181a, the second contact switch 181b, the third contact switch 181c, and the fourth contact switch 181d are disposed at positions corresponding to, and thus, the window support 12 through the window 11 is When pressure is applied to any one of the first area SE1, the second area SE2, the third area SE3, and the fourth area SE4, the area to which the pressure is applied (eg, the first area ( SE1)), the operating protrusion (eg, the first operating projection 126a) operates the contact switch (eg, the first contact switch 181a) located thereunder.

The window support 12 may further include a first tab 125a, a second tab 125b, a third tab 125c, and a fourth tab 125d extending downward from the window support plate 121 . The tabs 125a , 125b , 125c , and 125d may protrude in a vertical direction from the bottom surface of the window support plate 121 , respectively. Tab insertion grooves (not marked) may be formed on the upper surface of the partition plate 152 of the cover housing 15 at positions corresponding to the tabs 125a, 125b, 125c, and 125d, respectively.

On the other hand, the window 11 is a circular transparent plate, and transmits the screen of the display 13, and the material is preferably acrylic. The user may see the screen displayed on the display 13 through the window 11 . The entire area of the window 11 need not be transparent. The window support 12 is not visible from the appearance of the hub 1 , and only the screen of the display panel 131 exposed through the opening 12h of the window support 12 can be seen. Only a predetermined region 11b at a position substantially corresponding to the opening 12h is transparent, and the other regions 11a may be colored opaque or translucent so as to be concealed, or a film or the like may be attached (see FIG. 3 ).

The window 11 may be adhered to the upper surface of the window support plate 121 of the window support 12 using a double-sided tape or the like. The window 11 may be elastically bent when pressure is applied within a certain limit due to the characteristics of the synthetic resin material. This bending allows the contact switches 181a, 181b, 181c, and 181d to operate more smoothly. However, since the bending of the window 11 is elastic, it is restored to its original shape when the pressing pressure is removed.

On the other hand, since the length of the opening 12h formed in the window support plate 121 in the horizontal direction (or left-right direction) is longer than the length in the front-back direction (or vertical direction), the opening 12h corresponds to the left and right sides of the opening 12h. The third area SE3 and the fourth area SE4 are not suitable for installing the support bosses. Because, considering that the shape of the window 11 is circular, the third area SE3 and the fourth area SE4 are formed from the periphery of the opening 12h to the third manipulation protrusion 126c or the fourth manipulation protrusion 126d. ) is shorter than the distance from the periphery of the opening 12h to the first manipulation protrusion 126a or the second manipulation protrusion 126b in the first region SE1 and the second region SE2, , Therefore, if the support boss is formed in the third area SE3 or the fourth area SE4, since the distance between the third operation projection 126c and the fourth operation projection 126d is too close to the support boss, , because a large pressure is applied to the window support plate 121 to operate the manipulation protrusion.

For this reason, the first support boss 122a and the second support boss 122b are formed in the first area SE1, and the third support boss 122c and the fourth support boss 122d are formed in the second area SE2. ) is preferably formed.

On the other hand, when viewed from above, the first manipulation protrusion 126a is located further outside than the first support boss 122a and the second support boss 122b in the cover housing 15, and the second manipulation protrusion 126b ) is located more outside than the third support boss 122c and the fourth support boss 122d.

In each of the first area SE1 and the second area SE2 , slits 121a and 121b may be formed between the manipulation protrusions 126a and 126b and the support bosses 122a , 122b , 122c and 122d.

Referring to FIG. 10D , the support bosses 122a , 122b , 122c , and 122d are located in the first area SE1 or the second area SE2 , so the third manipulation protrusion 126c or the fourth manipulation protrusion It is relatively closer to the first operation projection 126a or the second operation projection 126b rather than (126d). For example, when pressure is applied to the first region SE1 of the window support plate 121, the window support plate 121 is bent around the first support boss 122a and the second support boss 122b. , At this time, the turning radius (moment arm) of the first operation protrusion 126a with respect to the first support boss 122a is r11, and the turning radius with respect to the second support boss 122b is r12. In the embodiment, r12 is shorter than r11 because the first operation protrusion 126a is closer to the second support boss 122b than the first support boss 122a. In addition, in the third operation projection 126c, the distance to the first support boss 122a is r31 (r31>r11>r12), and the distance r33 to the third support boss 122c is substantially equal to r31.

The operability of each of the manipulation protrusions 126a, 126b, 126c, and 126d is greatly affected by the distance to the nearest supporting bosses. If there are no slits 121a and 121b, as in the above example, when r31 is greater than r12, even if the same pressure is applied to the first region SE1 and the third region SE3, the third region ( SE3 is more curved than the first region SE1, so that the third manipulation protrusion 126c is more easily moved downward than the first manipulation protrusion 126a, and the third contact switch 181c is the first contact switch ( 181a), it will operate more smoothly. For the same reason, the operation of the second contact switch 181b may not be performed more smoothly than the third contact switch 181c or the fourth contact switch 181d.

In order to solve this problem, the first slit 121a and the second slit 121b are formed in the first area SE1 and the second area SE2 of the window support plate 121 , respectively. In these regions SE1 and SE2, the slits 121a, 121b are located between the supporting bosses 122a, 122b, 122c, 122d and the manipulation protrusions 126a, 126b, 126c, 126d in the regions.

As shown in FIG. 10D , a diameter extending in the left and right direction passing through the center (c) of the window support plate 121 is referred to as a horizontal diameter (D1), and a diameter extending in the front-rear direction is defined as a vertical diameter (D2). In this case, the first support boss 122a and the second support boss 122b are arranged in a direction substantially parallel to the horizontal diameter D1 in the first area SE1, and the third support boss 122c and The fourth support boss 122d may be arranged in a direction substantially parallel to the horizontal diameter D1 in the second area SE2 . In addition, the first slit 121a and the second slit 121b may extend in a direction substantially parallel to the horizontal diameter D1, respectively.

As the slits 121a and 121b are formed, when the first area SE1 or the second area SE2 is pressed, the bending of the window support plate 121 is located adjacent to both ends of the slits 121a and 121b. In particular, since this bending occurs mainly in a narrow area between the ends of the slits 121a and 121b and the outer periphery of the window support plate 121, the slits 121a and 121b are not formed compared to the case, There is an effect that the window support plate 121 is more smoothly curved.

In addition, there is an effect that the distance between the manipulation protrusions 126a and 126b and the portion where the bending occurs is increased. For example, in the case of the first manipulation protrusion 126a, the distance to one end of the first slit 121a ( rs) becomes longer than the distance r12 to the second support boss 122b, which is the moment arm of the force applied to the first region SE1 for the portion where the bending occurs in the first region SE1. As a result of the increase in length, it contributes to allowing the first operation protrusion 126a to be lowered more smoothly.

Also, as in the embodiment, even when the support bosses 122a, 122b, 122c, and 122d of the first area SE1 and the second area SE2 are asymmetrically disposed, the support bosses 122a, 122b, Since the slits 121a and 121b are formed between the 122c and 122d and the manipulation protrusions 126a and 126b, the bending of the window support plate 121 in the first area SE1 and the second area SE2 is supported. The bosses 122a, 122b, 122c, and 122d are substantially more affected by the positions and shapes of the slits 121a and 122b than the influences of the positions, and thus, the first slit 121a and the second slit 121a When the slits 121b are substantially symmetrical to each other, the operability of the first contact switch 181a and the second contact switch 181b is equalized.

3 to 5 , the body 40 is supported by the base 30 disposed on the lower side, and the upper end may be coupled to the cover housing 15 . The main body 40 may include speaker cases 41 and 42 that form a cavity 49 inside, and at least one speaker 43 and 44 disposed in the cavity 49 . In the embodiment, two speakers 43 and 44 are arranged vertically in the speaker cases 41 and 42, the speaker 43 arranged on the upper side is a tweeter that outputs a high-pitched tone, and the speaker arranged on the lower side. Reference numeral 44 denotes a woofer outputting a low-pitched sound.

22 is a perspective view showing the main body so that the upper surface is visible. 23 is a perspective view showing the main body so that the bottom surface is visible. 24 shows a front case (a) and a rear case (b). 25 shows the rear surface of the main body. 26 is a view showing the positions of the antennas connected to the Wi-Fi module. 27 is a view showing positions of an antenna connected to a Bluetooth module and an antenna connected to a Zigbi module. 28 is an exploded perspective view of the main body, the heat sink, the main PCB, the base body, and the support rubber. 29 is an enlarged perspective view of the support tab of the heat sink; 30 is a view showing a coupling structure between the body and the base. 31 is a view of the base from the front; 32 is a cross-sectional view showing the coupling structure of the main body, the grill, and the speaker case. 33 shows the bottom of the base. 34 is an exploded perspective view of the base;

22 to 25 , the speaker cases 41 and 42 may include a front case 41 and a rear case 42 forming a cavity 49 between the front case 41 and the front case 41 . A pair of sound output ports for exposing the tweeter 43 and the diaphragm (eg, membranes) of the woofer 44 up and down in the front case 41 may be formed to open toward the front.

On the inner surface of the front case 41, the case coupling boss 411 protruding to the rear may be formed at a plurality of points. In the embodiment, case coupling bosses 411 are formed in two places on both sides of the left and right at a constant height, and in the same way, a pair of case coupling bosses 411 are formed at six different heights at three different heights, but, It is not necessarily limited to this.

In the rear case 42, insertion bosses 421 are formed at positions corresponding to the case coupling bosses 411 formed in the front case 41, respectively, and bolts are inserted from the rear of the rear case 42 to each insertion boss ( 421) and may be coupled to the case coupling boss 411.

A pair of fastening bosses 153c and 153d may be recessed rearwardly on the front part of the upper holding part 153 of the cover housing 15 on both left and right sides (refer to FIGS. 11 to 14.), and the rear part A pair of fastening bosses (153a, 153b) may be recessed forward on both the left and right sides of the .

Corresponding to these fastening bosses 153a, 153b, 153c, 153d formed in the cover housing 15, the first boss insertion groove 415 and the second boss insertion groove in the front case 41 of the main body 40 A 416 is formed, and a third boss insertion groove 425 and a fourth boss insertion hop 426 may be formed in the rear case 42 .

Referring to FIG. 22 , the first boss insertion groove 415 and the second boss insertion groove 416 are each recessed backward from the front surface (the surface facing the front of the hub 1) of the front case 41, the upper side The upper end is opened so that the fastening bosses 153c and 153d can be respectively inserted from the.

Referring to FIG. 25 , the third boss insertion groove 425 and the fourth boss insertion groove 426 are each recessed forward from the rear surface of the rear case 42 (the surface facing the rear of the hub 1 ), the upper side The upper end is opened so that the fastening bosses 153a and 153b can be respectively inserted from the.

A fastening hole through which a bolt passes may be formed in each of the boss insertion grooves 415 , 416 , 425 , and 426 . Although only the fastening hole 416h formed in the second boss insertion groove 416 is shown in the drawing, the fastening hole (hereinafter, not shown in the drawing) is also shown in the first boss insertion groove 415 in the same manner to avoid confusion of description. 416h as an indication number) is formed, and fastening holes 425h and 426h (refer to FIG. 25) may be formed in the other boss insertion grooves 425 and 426 as well.

Fastening bosses (153a, 153b, 153c, 153d) are, in a state inserted into each corresponding boss insertion groove (415, 416, 425, 426), the fastening hole (415h, 416h, 425h, 426h) and corresponding position, the bolt may pass through each of the fastening holes 415h, 416h, 425h, and 426h to be fastened to the fastening bosses 153a, 153b, 153c, and 153d.

25 to 27 , at least one communication module 50 may be disposed on the main body 40 . The communication module 50 may be connected to a circuit of the main PCB 48 and/or the display PCB 14 and controlled by the controller 82 . In the embodiment, as the communication module 50, a Wi-Fi module 50a, a Bluetooth module 50b, and a Zigbi module 530 were provided. However, the present invention is not limited thereto, and a G-Wave module may be provided.

The module assembly 510 is an assembly of the Wi-Fi module 50a and the Bluetooth module 50b, and may be disposed at the rear of the main body 40 . The module assembly 510 may be disposed on the rear case 42 .

The module assembly 510 may be integrally coupled to the rear case 42 or may be separated from the rear case 42 . However, the present invention is not limited thereto, and the Wi-Fi module 50a and the Bluetooth module 50b may be provided separately from each other, and each may be independently combined with the main body 40 or separated from the main body 40 .

The module assembly 510 may include a pair of antennas 511a and 511b for transmitting/receiving signals. The pair of antennas 511a and 511b is provided in the module assembly 510 itself by default, but is not limited thereto, and at least one antenna 521 and 522 is provided at a position spaced apart from the module assembly 510. It is also possible to be further provided (see FIGS. 25 to 27.).

The module assembly 510 may include a first antenna connection terminal 513 and a second antenna connection terminal 514 of the Wi-Fi module 50a, and an antenna connection terminal 515 of the Bluetooth module 50b. Further, on the inner surface of the side wall 151 of the cover housing 15, a first antenna 521 and a second antenna 522 may be disposed on both the left and right sides of the rear part, respectively, and the first antenna 521 is The first antenna connection terminal 513 may be connected through the conducting line L1 , and the second antenna 522 may be connected with the second antenna connecting terminal 514 through the conducting line L2 .

Each of the first antenna 521 and the second antenna 522 is formed by coupling a thin film with a conductor having a predetermined pattern, and conductive wires L1 and L2 are connected to the conductor. The first antenna 521 and the second antenna 522 may be attached to the sidewall 151 of the cover housing 15 by a double-sided tape.

Since the side wall 151 of the cover housing 15 is located on the upper side of the grill 20 , it is not surrounded by the grill 20 , and thus, the first antenna 521 and the second antenna are formed on the side wall 151 . By disposing the 522, signal interference caused by the grill 20, which is a metal material, is reduced, so that the signal is transmitted and received more accurately.

In addition, the side wall 151 may be formed in a shape such that the height of the upper end of the side wall 151 is further away from the partition plate 152 from the front to the rear. In this case, the rear portion of the sidewall 151 may form a larger gap with the display PCB 14 mounted on the partition plate 152 compared to the front portion. Accordingly, by arranging the first antenna 521 and the second antenna 522 on the rear portion of the sidewall 151 , the antennas 521 , 522 can be further spaced apart from the display PCB 14 , and the display PCB (14) has the effect of reducing the signal interference caused by the magnetic field generated by the current flowing in the circuit.

On the other hand, a jigbi module 530 may be provided on either one of the left and right sides of the main body 40 . On the inner surface of the front part of the side wall 151 of the cover housing 15 , the third antenna 532 and the Bluetooth module 50b connected through the antenna connection terminal 531 of the Zigbi module 530 and the wire L3 and the antenna of the Bluetooth module 50b A fourth antenna 541 connected to the connection terminal 515 and the conductive line L4 may be provided.

Each of the third antenna 532 and the fourth antenna 541 is formed by combining a thin film with a conductor having a predetermined pattern, and conductive wires L3 and L4 are connected to the conductor. The third antenna 532 and the fourth antenna 541 may be attached to the sidewall 151 of the cover housing 15 by a double-sided tape.

28 to 29 , the main PCB 48 may be disposed in a space formed between the body 40 and the base 30 . The main PCB 48 controls the overall operation of the hub 1, and includes a control unit 82, a USB port 62, a data transmission port 64, various switches 76 and 77, a receptacle 390, and the like. It is mounted, and is circuit-connected with various electronic devices such as communication modules 50a and 530 , display PCB 14 , tweeter 43 , and woofer 44 .

A heat sink 33 may be disposed between the main PCB 48 and the body 40 . The heat sink 33 is made by processing a metal plate, and the material is preferably aluminum. The heat sink 33 dissipates the heat emitted from the main PCB 48 to the upper space (ie, the space between the bottom surface of the main body 40 and the heat sink 33 ).

A plurality of fastening bosses 45a, 45b, 45c, 45d may protrude from the bottom surface of the body 40 . The first fastening boss 45a and the second fastening boss 45b may protrude from the bottom surface of the rear case 42 , and the third fastening boss 45c and the fourth fastening boss 45d are the front case 41 . may protrude from the bottom of the The fastening bosses 45a, 45b, 45c, and 45d may be coupled to the base 30 .

When the bottom surface of the main body 40 is divided by a horizontal line and a vertical line passing through the center, the fastening bosses 45a, 45b, 45c, 45d may be respectively formed in four quadrants partitioned by the horizontal and vertical lines.

Insertion bosses 35a, 35b, 35c, 35d may be formed in the base 30 at positions corresponding to the fastening bosses 45a, 45b, 45c, and 45d, respectively. The fastening bosses 45a, 45b, 45c, and 45d may be respectively inserted into the insertion bosses 35a, 35b, 35c, and 35d, and in this inserted state, each of the insertion bosses 35a, 35b, 35c, 35d ) can be fastened with a bolt passing through from the lower side.

A plurality of heat sink coupling bosses (46b, 46c, 46d) may further protrude from the bottom surface of the main body (40). The heat sink support bosses 46b, 46c, and 46d may be disposed close to the fastening bosses 45a, 45b, 45c, and 45d, and in the embodiment, the heat sink support bosses 46b, 46c, and 46d) was formed, but the number is not necessarily limited thereto.

The heat sink 33 is made by processing a metal plate, and the material is preferably aluminum or stainless steel. However, other metallic materials are also possible. The heat sink 33 may include a horizontal flat plate portion 331 and a plurality of support tabs 332b, 332c, and 332d extending from the circumference of the flat plate portion 331 .

In the flat plate portion 331, the through-holes 335a, 335b, 335c, 335d, through which the fastening bosses 45a, 45b, 45c, and 45d, respectively, pass, hereinafter, if it is necessary to distinguish from other configurations, it is called a “fastening boss through hole” ) and through-holes 334b, 334c, and 334d through which the support bosses 46b, 46c, and 46d pass, respectively, hereinafter, if it is necessary to distinguish from other components, referred to as “support boss through-hole”) are formed. can be

Referring to FIG. 29 , the support bosses 46b , 46c , and 46d may be coupled to the support tabs 332b , 332c , and 332d on the upper side of the main PCB 48 , respectively. The support tabs 332b, 332c, and 332d may include a vertical portion 336 extending downward from the flat plate portion 331 and a horizontal portion 337 horizontally bent from the vertical portion 336 . A fastening hole 338 through which a bolt passes is formed in the horizontal portion 337 of each of the support tabs 332b, 332c, 332d, and after each bolt passes through the fastening hole 338 from the lower side, the support boss 46b , 46c, 46d) may be engaged.

In a state in which the support bosses 36b, 36c, and 36d are fastened to the support tabs 332b, 332c, and 332d, the flat plate part 331 is spaced apart from the bottom surface of the main body 40 located on the upper side, and is also located on the lower side. It is also spaced apart from the main PCB (48). Since the flat plate portion 331 is spaced apart from the bottom surface of the main body 40, even if the main body 40 vibrates by the output of the speakers 43, 44, the contact between the bottom surface of the main body 40 and the flat surface portion 331 No hitting noise is generated.

Through-holes 481a, 481b, 481c, and 481d may be formed in the main PCB 48 at positions corresponding to the through-holes 335a, 335b, 335c, and 335d of the heat sink 33, respectively. The fastening bosses (45a, 45b, 45c, 45d) are longer than the supporting bosses (46b, 46c, 46d), respectively, the through holes (335a, 335b, 335c, 335d) of the heat sink 33 and the main PCB ( 48), it may be inserted into the insertion bosses 35a, 35b, 35c, 35d of the base 30 after passing through the through holes (481a, 481b, 481c, 481d).

Referring to FIGS. 28 to 34 , the base 30 includes a base body 31 having an open top surface and having a predetermined space inside, and a support rubber 32 fixed to the bottom surface of the base body 31 . can do. The hub 1 is formed in a small size so that a user can lift it and move it, and may be mounted on a floor such as a table or shelf. The support rubber 32 provided on the lower side of the base body 31 increases friction with the floor, thereby preventing the hub 1 from falling or falling.

The insertion bosses (35a, 35b, 35c, 35d) protrude upward from the inner surface of the base body 31, and the insertion bosses 35a, 35b, 35c, 35d) and fasteners 351a, 351b, 351c, and 351d respectively communicating with each other may be formed.

After assembling the main body 40 and the heat sink 33, the fastening bosses 45a, 45b, 45c, and 45d are now passed through the fastening boss through holes 481a, 481b, 481c, 481d formed in the main PCB 48. . Then, each fastening boss (45a, 45b, 45c, 45d) is inserted into the insertion boss (35a, 35b, 35c, 35d) formed in the base (30). After that, a bolt (not shown) is inserted into the fastening hole 351a, 351b, 351c, 351d from the lower side of the base 30, and the fastening boss 45a, 45b, in the insertion boss 35a, 35b, 35c, 35d, 45c, 45d).

A rubber insertion groove 318 may be formed in the base bottom 310 of the base 30 . The rubber insertion groove 318 may extend along a predetermined circumference on the base bottom 310 . Preferably, the rubber insertion groove 318 is in the form of an arc extending from one end 318a to the other end 318b with a constant curvature, and the fastening holes 351a, 351b, 351c, 351d are in the rubber insertion groove 318. can be located.

The support rubber 32 is inserted into the rubber insertion groove 318 . The upper surface of the support rubber 32 may be attached to the bottom of the rubber insertion groove 318 by a double-sided tape.

The support rubber 32 includes a rubber body 321 elongated in a shape corresponding to the rubber insertion groove 318 , and a plurality of support protrusions 322 protruding from the rubber body 321 to the outside of the rubber insertion groove 318 . ) may be included. By placing the support protrusion 322 on the floor (eg, living room, sink, etc.) on which the hub 1 is mounted, the hub 1 is erected, and at this time, the support protrusion 322 from the rubber body 321 . ) corresponds to the protruding length, the base body 31 is spaced apart from the floor. When the hub 1 is mounted in a place that is easily in contact with water, such as a kitchen counter, it is effective to prevent the base body 31 from getting wet with water.

The plurality of support protrusions 322 are arranged at regular intervals along the longitudinal direction of the rubber body 321 , and are preferably arranged symmetrically with respect to the center of the base bottom 310 of the base body 31 . In the embodiment, the four support protrusions 322 are arranged at intervals of 90 degrees, but the number of the support protrusions 322 is not necessarily limited thereto.

The base body 31 may include a base outer wall portion 311 extending upwardly from the circumference of the base bottom portion 310 . The outer diameter of the base outer wall portion 311 is gradually increased toward the upper side, and the outer diameter at the uppermost end is substantially the same as the outer diameter of the lower end of the grill 20 .

The base body 31 may include a lower holding part 313 that extends upwardly from the base outer wall part 311 and is coupled to the grill 20 . The combination of the lower holding part 313 and the grill 20 as described above does not use a separate fastening member such as a bolt, but the lower holding part 313 is inserted into the opening at the lower end of the grill 20 (or , fitted) method, preferably, the grill 20 or the lower holding part 313 itself is a force fit method using the elastic / restoring force.

Referring to FIG. 32 , the lower holding part 313 is located more inside than the upper end of the base outer wall part 311 (that is, the outer surface of the base body 31 is recessed from the upper end of the outer wall part 311 and the lower end It forms the outer surface of the holding part 313.) Thus, at the upper end of the outer wall part 311, it extends from the outer surface of the outer wall part 311 to the lower end holding part 311, the lower end of the grill 20 Opposing surfaces 312 are formed. A lower end of the grill 20 may be positioned on the surface 312 . The surface 312 may be formed in a shape corresponding to the lower end of the grill 20 on the upper end of the base outer wall part 311 , and the width of the surface 312 is substantially the same as the thickness of the grill 20 .

Since the outer surface of the lower holding part 313 is in contact with the inner surface of the grill 20, the shape of the lower end of the grill 20 is maintained. In particular, when the grill 20 is made of a metal material, since the grill 20 is deformed corresponding to the shape of the lower holding part 313 , the lower end of the grill 20 corresponds to the lower holding part 313 . can be kept in shape.

When the lower holding part 313 extends in an oval shape along the upper end of the outer wall part 311, a metal plate is rolled to form a cylindrical grill 20 having a circular cross-section, and then the lower end of the grill 20 is removed. When inserted into the lower holding part 313 , the shape of the grill 20 is also transformed into an elliptical shape corresponding to the shape of the lower holding part 313 , and thus the shape of the grill 20 may be maintained in a deformed state.

Annular ribs 315 may protrude upward toward the inner surface of the base body 31 . The rib 315 is formed inside the lower holding part 313 . In the main body 40, the insertion rib 47 may protrude downward from the bottom surface of the cases 41 and 42, and the insertion rib 47 is formed in a groove 314 between the lower holding part 313 and the rib 315. can be inserted into

In the base bottom 310 of the base body 31 , a depression 316 may be formed in an inner region surrounded by the rubber insertion groove 318 . The recessed portion 316 includes a groove side portion 316a extending upwardly from the periphery of the opening formed on the bottom surface of the base bottom portion 310, and a groove bottom portion extending horizontally from the groove side portion 316a to form the bottom of the groove ( 316b). The adapter may be accommodated in the depression 316 . Although not shown, the hub 1 may include an adapter that receives external commercial AC power and supplies DC power required for the operation of the hub 1 . A socket 391 into which an output terminal of a cord connected to the adapter is inserted may be provided in the groove side portion 316a.

A receptacle 390 having a socket 391 may be disposed on a bottom surface of the main PCB 48 . The receptacle 390 electrically connects the socket 391 with the circuitry of the main PCB 48 .

A cord fixing groove 37 may be formed in the base body 31 . The cord fixing groove 37 may be formed between one end 318a and the other end 318b of the rubber insertion groove 318 . The cord fixing groove 37 extends from the inner opening 371 formed in the side portion 316a to the outer opening 372 formed on the base outer wall portion 311, and an inner opening ( A cord insertion hole 373 connecting the 371 and the outer opening 372 is formed. That is, the cord fixing groove 37 does not have a closed cross-section perpendicular to the longitudinal direction of the groove, but has a partially open cross-section due to the cord insertion hole 373 . In addition, the cross-section may have a maximum inner diameter greater than the interval (ie, the width of the cord insertion hole 373 ) of the open section of the cross-section inside the cord fixing groove 37 . In general, since the outer shape of the cord is made of a covering of a material having some elasticity, even if it has an outer diameter larger than the width of the cord insertion hole 373, if the difference does not exceed a certain range, it is deformed due to the flexibility of the material itself As this is done, it can pass through the code insertion hole 373, and in this way, once it is inserted into the code fixing groove 37, its shape is restored to its original state, so it cannot pass through the code insertion hole 373. Therefore, It is prevented from being detached from the cord fixing groove (37).

On the other hand, the outer opening 372 may be formed to be larger than the inner opening 371, and the code fixing groove 37 has a shape in which the size of the cross section gradually decreases from the outer opening 372 to the inner opening 371. can be done

The insertion hole reduction protrusions 319a and 319b may be formed on the inner surface of the cord fixing groove 37 . The insertion hole reduction protrusions 319a and 319b may be formed on at least one of both portions defining the cord insertion hole 373 . Since the distance between the cord insertion holes 373 is narrowed in the portion where the insertion hole reduction protrusions 319a and 319b are formed, it is possible to more effectively prevent the cord from being detached from the code fixing groove 37 .

Meanwhile, a Wi-Fi reset switch 77 may be provided on the bottom surface of the main PCB 48 . The Wi-Fi reset switch 77 may be configured as a contact switch, and when the Wi-Fi reset switch 77 is pressed, the controller 82 may initialize (reset) the Wi-Fi module 50a.

Referring to FIG. 30 , a Wi-Fi reset button 71 may be coupled to the bottom surface of the main PCB 48. The Wi-Fi reset button 71 is made of synthetic resin, and the arms extending to both sides of the button part 71a are It is coupled to the bottom surface of the main PCB (48). The button part 71a is located in a hole formed in the base bottom part 310 under the Wi-Fi reset switch 77 in a state resiliently supported by the arms. When the button portion 71a is pressed, the Wi-Fi reset switch 77 is switched.

A hub reset switch 76 may be disposed on the bottom surface of the main PCB 48 . The hub reset switch 76 may be configured as a contact switch, and is exposed through a hole formed in the base bottom 310 . When the hub reset switch 76 is pressed, the control unit 82 is initialized (reset).

Claims (11)

a main body having a speaker for outputting sound;
a communication module disposed on the main body and performing wireless communication with surrounding devices;
Disc-shaped window made of a transparent material;
a display panel for outputting a screen based on the information exchanged through the communication module; and
It is coupled to the upper portion of the main body, the display panel is disposed on the inside, the window is disposed on the upper side of the display panel, comprising a cover housing having an opening disposed on the upper surface of the window,
The opening is
It is located on a predetermined plane that is inclined upward from the front to the rear with respect to the horizontal plane,
The inner surface of the cover housing,
A certain portion within a predetermined distance downward from the upper end defining the opening is parallel to the direction in which the plane faces,
The window is
A hub having an upper surface inclined with respect to a horizontal plane at the same angle as the plane in an area defined by the predetermined portion among the inner surfaces of the cover housing. The method of claim 1,
It consists of a vertical long cylindrical shape having a plurality of through holes, the main body is disposed on the inside, and further comprises a grill having an upper end coupled to the cover,
The cover housing is
a cylindrical side wall extending in the vertical direction and disposed above the grill; and
It extends from the side wall, is inserted into the inside of the grill from the upper side of the grill, and includes an upper holding part for maintaining the shape of the upper end of the grill by contacting the inner surface of the grill,
The predetermined portion of the inner surface of the cover housing,
a hub belonging to the inner side of the sidewall. 3. The method of claim 2,
On a cut surface of the cover housing cut in an arbitrary vertical plane, an outer surface of the side wall is parallel to the predetermined portion or has a shape gradually moving away from the predetermined portion toward the lower side. The method of claim 1,
The window is a garden herb. 5. The method of claim 4,
The side of the window is
A hub forming a constant distance from the predetermined portion of the inner surface of the cover housing at any portion. a main body having a speaker for outputting sound;
a communication module disposed on the main body and performing wireless communication with surrounding devices;
Disc-shaped window made of a transparent material;
a display panel for outputting a screen based on the information exchanged through the communication module; and
It is coupled to the upper portion of the main body, the display panel is disposed on the inside, the window is disposed on the upper side of the display panel, comprising a cover housing having an opening disposed on the upper surface of the window,
A vector normal to a predetermined plane to which the opening belongs forms an acute angle with a horizontal plane, and a vector obtained by orthogonal projection of the normal vector to the horizontal plane is directed forward,
The inner surface of the cover housing,
A certain portion within a predetermined distance downward from the upper end defining the opening is parallel to the normal vector,
The window is
The hub is disposed such that an upper surface faces a direction in which the normal vector is directed within a region defined by a portion parallel to the normal vector among the inner surfaces of the cover housing. 7. The method of claim 6,
It consists of a vertical long cylindrical shape having a plurality of through holes, the main body is disposed on the inside, and further comprises a grill having an upper end coupled to the cover,
The cover housing is
a cylindrical side wall extending in the vertical direction and disposed above the grill; and
It extends from the side wall, is inserted into the inside of the grill from the upper side of the grill, and includes an upper holding part for maintaining the shape of the upper end of the grill by contacting the inner surface of the grill,
Among the inner surfaces of the cover housing, a portion parallel to the normal vector is
a hub belonging to the inner side of the sidewall. 8. The method of claim 7,
On a cut surface of the cover housing cut in an arbitrary vertical plane, an outer surface of the side wall is parallel to the normal vector, or has a shape gradually moving away from the normal vector as it goes downward. 7. The method of claim 6,
The window is a garden herb. 10. The method of claim 9,
The side of the window is
A hub forming a constant interval with a portion parallel to the normal vector of the inner surface of the cover housing at any portion. a main body having a speaker for outputting sound;
a communication module disposed on the main body and performing wireless communication with surrounding devices;
a base for supporting the main body from the lower side;
Disc-shaped window made of a transparent material;
a display panel for outputting a screen based on the information exchanged through the communication module; and
It is coupled to the upper portion of the main body, the display panel is disposed on the inside, the window is disposed on the upper side of the display panel, comprising a cover housing having an opening disposed on the upper surface of the window,
The window is
It is disposed in an area defined by the inner surface of the cover housing, and is disposed in an area defined by a predetermined portion extending downward from the upper end of the inner surface defining the opening,
A vector normal to the upper surface of the window forms an acute angle with a horizontal plane, and a vector obtained by orthogonal projection of the normal vector to the horizontal plane is directed forward,
The inner surface of the cover housing,
The hub defining the area is parallel to the side of the window.

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