Patent Publication Number: US-2019199046-A1

Title: Remote control terminal

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
     This application is a continuation application of International Application No. PCT/CN2016/099025, filed on Sep. 14, 2016, the entire contents of which are incorporated herein by reference. 
    
    
     COPYRIGHT NOTICE 
     A portion of the disclosure of this patent document contains material which is subject to copyright protection. The copyright owner has no objection to the facsimile reproduction by anyone of the patent document or the patent disclosure, as it appears in the Patent and Trademark Office patent file or records, but otherwise reserves all copyright rights whatsoever. 
     TECHNICAL FIELD 
     The disclosure relates to a technical field of connection cable routing design and, in particular, to a remote control terminal. 
     BACKGROUND 
     Unmanned aerial vehicles (UAVs) have become popular aerial photography tools and have high operability. A user usually uses a remote controller to control a UAV to fly and connects a mobile communication terminal, such as a mobile phone, to the remote controller. Through the remote controller, the mobile communication terminal can receive and display image data acquired by the UAV and share image data with other devices. 
     The remote controller and the mobile terminal need to maintain a long-time online operation. Therefore, to ensure the stability of an image data transmission, a connection cable is usually used to connect the remote control with the mobile terminal. However, a currently used connection cable is usually independent from the remote control main body. When in use, the connection cable is usually scattered around the remote controller, which affects the appearance of the remote controller. The scattered connection cable can be easily damaged and is not easy to carry. When the connection cable is not in use, it is easy to lose or be left behind, resulting in poor user experience. 
     SUMMARY 
     In accordance with the disclosure, there is provided a remote control terminal. The remote control terminal includes a connection cable, a remote control main body, and a holding mechanism. The connection cable includes a first connection terminal, a second connection terminal, and a connection wire. The connection wire is between the first connection terminal and the second connection terminal. The remote control main body includes an electrical connection interface at a side of the remote control main body. The electrical connection interface is configured to be coupled to the first connection terminal. The holding mechanism is connected to the remote control main body and configured to move relative to the remote control main body to switch between an extended state and a contracted state. The holding mechanism includes a positioning mechanism. The positioning mechanism is configured to position the second connection terminal. 
    
    
     
       DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a perspective view of a remote control terminal according to an embodiment of the present disclosure, where a holding mechanism of the remote control terminal is in a contracted state. 
         FIG. 2  is a perspective view of the remote control terminal of  FIG. 1  connected with a mobile terminal, where the holding mechanism of the remote control terminal is in an extended state. 
         FIG. 3  is a perspective view of a connection cable according to an embodiment of the present disclosure. 
         FIG. 4  is a perspective view of the remote control terminal in  FIG. 2 , with the connection cable separated from a remote controller body and the holding mechanism. 
         FIG. 5  is a perspective view of the remote control terminal of  FIG. 4  from another perspective. 
         FIG. 6  is a partially enlarged exploded view of a positioning mechanism of the holding mechanism in  FIG. 4 . 
         FIG. 7  is a perspective view showing the connection cable and a sliding frame of the positioning mechanism in a first mating state according to an embodiment of the present disclosure. 
         FIG. 8  is a perspective view showing the connection cable and the sliding frame of the positioning mechanism in a second mating state according to an embodiment of the present disclosure. 
         FIG. 9  is a perspective view of the remote control terminal in  FIG. 2  from another perspective. 
         FIG. 10  is another perspective view of the remote control terminal according to an embodiment of the present disclosure, where the holding mechanism of the remote control terminal is in an extended state. 
         FIG. 11  is a perspective view of the remote control terminal of  FIG. 10  connected to a mobile terminal. 
     
    
    
     REFERENCE NUMERALS FOR MAIN COMPONENTS 
       
     
       
         
           
               
               
               
             
               
                   
                   
               
             
            
               
                   
                 Remote control terminal 
                 100, 100′ 
               
               
                   
                 Remote control main body 
                 20, 20′ 
               
               
                   
                 Electrical connection interface (also referred as first 
                 21 
               
               
                   
                 connection interface) 
               
               
                   
                 Wire tray 
                 22 
               
               
                   
                 Receiving member 
                 23, 23′ 
               
               
                   
                 Operation device 
                 251 
               
               
                   
                 Function buttons 
                 252 
               
               
                   
                 Antenna 
                 253 
               
               
                   
                 Holding mechanism 
                 30, 30′ 
               
               
                   
                 Positioning mechanism 
                 31, 31′ 
               
               
                   
                 Accommodating member 
                 311 
               
               
                   
                 First mating structure 
                 3111 
               
               
                   
                 Sliding frame 
                 312 
               
               
                   
                 Through hole 
                 3121 
               
               
                   
                 Second mating structure 
                 3122 
               
               
                   
                 Clamping member 
                 32 
               
               
                   
                 Connection cable 
                 40 
               
               
                   
                 First connection terminal 
                 41 
               
               
                   
                 Second connection terminal 
                 42 
               
               
                   
                 Connecting member 
                 421 
               
               
                   
                 Pressing member 
                 422 
               
               
                   
                 Flange 
                 4221 
               
               
                   
                 Connection wire 
                 43 
               
               
                   
                 Connection mechanism 
                 50, 50′ 
               
               
                   
                 Sliding member 
                 51 
               
               
                   
                 Mobile terminal 
                 600 
               
               
                   
                 Mobile terminal interface (also referred as second 
                 61 
               
               
                   
                 connection interface) 
               
               
                   
                   
               
            
           
         
       
     
     DETAILED DESCRIPTION 
     As used herein, when a first component is referred to as “fixed to” a second component, it is intended that the first component may be directly attached to the second component or may be indirectly attached to the second component via another component. When a first component is referred to as “connecting” to a second component, it is intended that the first component may be directly connected to the second component or may be indirectly connected to the second component via a third component between them. The terms “perpendicular,” “horizontal,” “left,” “right,” and similar expressions used herein are merely intended for description. 
     Unless otherwise defined, all the technical and scientific terms used herein have the same or similar meanings as generally understood by one of ordinary skill in the art. As described herein, the terms used in the specification of the present disclosure are intended to describe example embodiments, instead of limiting the present disclosure. The term “and/or” used herein includes any suitable combination of one or more related items listed. 
     Technical solutions of the present disclosure will be described with reference to the drawings. It will be appreciated that the described embodiments are some rather than all of the embodiments of the present disclosure. Other embodiments conceived by those having ordinary skills in the art on the basis of the described embodiments without inventive efforts should fall within the scope of the present disclosure. 
     As shown in  FIG. 1  and  FIG. 2 , some embodiments of the present disclosure provide a remote control terminal  100 , which includes a remote control main body  20 , holding mechanism  30 , and a connection cable  40 . The holding mechanism  30  is connected to the remote control main body  20  and is configured to hold a mobile terminal  600 . The remote control main body  20  can communicate with the mobile terminal  600  through the connection cable  40 . 
     The remote control main body  20  is configured to control a controlled terminal (not shown), receive data returned by the controlled terminal, and transmit the received data to the mobile terminal  600  via the connection cable  40 . 
     Taking an unmanned aerial vehicle (UAV) as the controlled terminal as an example, the remote control main body  20  can control the flight of the UAV and receive image data acquired by the UAV while performing aerial photography. The image data can then be transmitted by the remote control main body  20  to the mobile terminal  600  for previewing and sharing to the Internet or with friends. 
     Referring to  FIG. 3 , in some embodiments, the connection cable  40  includes a first connection terminal  41 , a second connection terminal  42 , and a connection wire  43  between the first connection terminal  41  and the second connection terminal  42 . 
     As shown in  FIG. 4  and  FIG. 5 , in some embodiments, the remote control main body  20  includes an electrical connection interface  21  (also referred as a first connection interface) at the side of the remote control main body  20 , to match the first connection terminal  41  of the connection cable  40 . The second connection terminal  42  of the connection cable  40  is configured to match a mobile terminal interface  61 . 
     In some embodiments, the holding mechanism  30  is movable relative to the remote control main body  20 , so that the holding mechanism  30  can be in an extended state to hold the mobile terminal  600  (as shown in  FIG. 2 ), or in a contracted state (as shown in  FIG. 1 ) such that the remote control terminal  100  can be carried easily. 
     Therefore, when using the remote control terminal  100 , a user can move the holding mechanism  30  relative to the remote controller main body  20  so that the holding mechanism  30  is in the extended state. The mobile terminal  600  can be held by the holding mechanism  30 , so as to assist remote control, and display and transmit data. After completing the remote control operation or displaying and transmitting data, the user may remove the mobile terminal  600  from the holding mechanism  30  and move the holding mechanism  30  relative to the remote control main body  20  so that the holding mechanism  30  is in the contracted state. When the holding mechanism  30  is in the contracted state, the volume of the remote control terminal  100  is decreased, and the portability of the remote control terminal  100  is improved. 
     In some embodiments, the holding mechanism  30  includes a positioning mechanism  31  for positioning the second connection terminal  42  of the connection cable  40 . When the holding mechanism  30  is in the extended state, the second connection terminal  42  of the connection cable  40  positioned at the positioning mechanism  31  can be connected to an interface  61  of the mobile terminal  600 . The interface  61  of the mobile terminal  600  is also referred to as a “mobile terminal interface”  61  (also referred as a second connection interface). When the holding mechanism  30  is in the contracted state, the connection cable  40  can be disposed around a side of the remote controller main body  20 . 
     The two connection terminals of the connection cable  40  are fixed to the remote control main body  20  and the holding mechanism  30 , respectively. When the holding mechanism  30  is in the extended state, the connection cable  40  can be used to connect the remote control main body  20  with the mobile terminal  600 . When the holding mechanism  30  is in the contracted state, the connection cable  40  can be accommodated. 
     Referring to  FIG. 3 , in some embodiments, an extending direction of the first connection terminal  41  and/or an extending direction of the second connection terminal  42  of the connection cable  40  is approximately perpendicular to the connection wire  43  of the connection cable  40 . This design may prevent the connection wire  43  from folding and improve the stability of holding the remote control terminal  100  by hand during plugging and unplugging of the first connection terminal  41  and/or the second connection terminal  42 . 
     In some embodiments, the first connection terminal  41  and the second connection terminal  42  may be located at a same side of the connection wire  43 . 
     The electrical connection interface  21  may be a DC socket, a standard socket, a mini USB socket, or a micro-USB socket. The first connection terminal  41  may be a plug corresponding to the type of the electrical connection interface  21 , i.e., a DC plug, a standard plug, a Mini USB plug, or a micro-USB plug. 
     The mobile terminal interface  61  may be a DC socket, a standard socket, a mini USB socket, or a micro-USB socket. The second connection terminal  42  may be a plug corresponding to the type of the electrical connection interface  61 , i.e., a DC plug, a standard plug, a Mini USB plug, or a micro-USB plug. The connection cable  40  may be any type of cable corresponding to the type of the mobile terminal interface. 
     Referring to  FIG. 6 , in some embodiments, the positioning mechanism  31  includes an accommodating member  311 , which has an elongated shape and two opposite ends facing with each other. The second connection terminal  42  of the connection cable  40  can be positioned at any point between the two opposite ends of the accommodating member  311 . Therefore, the position of the second connection terminal  42  of the connection cable  40  in the accommodating member  311  can be adjusted, so that the second connection terminal  42  may be able to align with and connect to the mobile terminal interface  61  of different sizes and models. 
     For example, as shown in  FIG. 5 , when the holding mechanism  30  is in the extended state, the second connection terminal  42  of the connection cable  40  can be positioned at any position between the opposite ends of the positioning mechanism  31  and electrically connected to the mobile terminal interface  61 . As shown in  FIG. 1 , when the holding mechanism  30  is in the contracted state, the second connection terminal  42  of the connection cable  40  can be positioned at least at one end of the positioning mechanism  31 , so that the connection cable  40  is straightened and disposed around the side of the remote controller. 
     In some embodiments, the second connection terminal  42  of the connection cable  40  may be moved by moving the holding mechanism  30  relative to the remote control main body  20 . For example, the holding mechanism  30  can move along the side of the remote control main body  20  to adjust the position of the second connection terminal  42  of the connection cable  40 , such that the second connection terminal  42  can be adapted to different types of mobile terminals  600 . 
     Referring to  FIG. 6 , in some embodiments, the positioning mechanism  31  further includes a sliding frame  312 , which is slidably disposed in the accommodating member  311 . The sliding frame  312  includes a through hole  3121 . The second connection terminal  42  of the connection cable  40  is sleeved in the through hole  3121  and can slide along the sliding frame  312  to be positioned at any position in the accommodating member  311  of the positioning mechanism  31 . 
     Moreover, the accommodating member  311  includes a first mating structure  3111  at an inner wall of the accommodating member  311 . The sliding frame  312  includes a second mating structure  3122  at an outer surface of the sliding frame  312  and configured to engage with the first mating structure  3111 . Through the engagement between the first mating structure  3111  and the second mating structure  3122 , the sliding frame  312  can be slidably locked in the accommodating member  311 . 
     In some embodiments, the first mating structure  3111  may be a guiding groove, and correspondingly the second mating structure  3122  may be a guiding rail. In some embodiments, the first mating structure  3111  may be a guiding rail, and correspondingly the second mating structure  3122  may be a guiding groove. 
     In some embodiments, the sliding frame  312  is made of a self-lubricating material, which enhances the reliability of sliding of the sliding frame  312 . 
     In some embodiments, the second connection terminal  42  of the connection cable  40  includes a connecting member  421  for cooperating with the mobile terminal interface  61 , and a pressing member  422  to be sleeved in the sliding frame  312 . 
     In some embodiments, the pressing member  422  has a flange  4221  at an end distal from the connecting member  421 . An outer diameter of the flange  4221  is approximately equal to an inner diameter of the through hole  3121  of the sliding frame  312 . Therefore, when the pressing member  422  is inserted into the through hole  3121  of the sliding frame  312  by an external force, the pressing member  422  may not automatically fall off from the sliding frame  312 . 
     Thus, when the connection cable  40  is not in use, the first connection terminal  41  of the connection cable  40  can remain inserted in the electrical connection interface  21  of the remote control main body  20 , while the second connection terminal  42  is secured in the accommodating member  311  of the positioning mechanism  31 . Such a configuration can effectively solve the problem that the connection cable  40  is relatively independent of the remote control main body  20  and hence easy to be lost or left behind. 
     In embodiments, the accommodating member  311  is a through hole. As shown in  FIG. 7  and  FIG. 8 , the second connection terminal  42  of the connection cable  40  is movable in the sliding frame  312 . Therefore, the second connection terminal  42  of the connection cable  40  can move in the accommodating member  311  forward to or backward from the mobile terminal  600 , e.g., along a direction parallel to an axial direction of the through hole, by a predetermined distance. In some embodiments, the predetermined distance is about 0-6 mm. In this way, the user can easily plug and unplug the second connection terminal  42  of the connection cable  40  while holding the second connection terminal  42  of the connection cable  40 . Therefore, the remote control main body  20  can be quickly connected to or disconnected from the mobile terminal  600 . 
     In some embodiments, the pressing member  422  is inserted into the sliding frame  312  from the inside to the outside of the holding mechanism  30 . In this way, as shown in  FIG. 9 , a part of the connection wire  43  of the connecting wire  40  can be hidden inside the holding mechanism  30 , so that the connection wire  43  can be partially hidden at the inside of the holding mechanism  30 . Problems caused by the exposure of the connection wire  43 , such as scattering, scratching, or wearing out of wires, can be effectively solved, and hence the connection cable  40  can be better protected and have an extended lifetime. Meanwhile, the remote control terminal  100  can have a tidy appearance and the user experience can be improved. 
     Referring again to  FIG. 1 , in some embodiments, the holding mechanism  30  in the contracted state can match the edge of the remote control main body  20 . The remote control main body  20  can include a receiving hole (not shown) at the side facing the holding mechanism  30 . When the holding mechanism  30  is in the contracted state, the receiving hole is disposed opposite to the accommodating member  311  of the positioning mechanism  31  and accommodates the second connection terminal  42  of the connection cable  40 . As a result, the second connection terminal  42  of the connecting wire  40  can be further fixed and protected. 
     As shown in  FIG. 5 , in some embodiments, the side of the remote control main body  20  includes a wire tray  22  at the opening of the first connection interface. The wire tray extends from the first connection interface to a connecting point between the holding mechanism  30  and the remote control main body  20 . The wire tray  22  is configured to route the connection wire  43  of the connection cable  40 . 
     In some embodiments, the wire tray  22  can closely match the connection wire  43  of the connection cable  40 . 
     In some embodiments, the connection wire  43  may be attached to the wire tray  22  by a magnetic attraction without protruding from the wire tray  22 . In this way, the exposed portion of the connection wire  43  of the connection cable  40  can be tightly fitted in the wire tray  22 , which can effectively prevent scratches and damages of the connection cable caused by the connection wire  43  protruding out of the remote control main body  20 . Therefore, the connection cable  40  can be better protected and have an extended lifetime. Further, the problem that the connecting wire  40  is scattered on the outside of the remote controller body  20  when the connecting wire  40  is carried or used is effectively solved, so as to keep the appearance of the remote control terminal  100  tidy and improve the user experience. 
     In some embodiments, one of the inside of the wire try  22  and the connection wire  43  includes a magnetic body, and the other one may include a magnetic body or a metal body that can be attracted by a magnet. For example, a magnetic body is disposed inside the wire try  22  and a metal body is correspondingly disposed at the connection wire  43 . As another example, a metal body is disposed inside the wire tray  22  and a magnetic body is correspondingly disposed at the connection wire  43 . As a further example, magnetic bodies are disposed at both the inside of the wire try  22  and the connection wire. 
     In some embodiments, the magnetic body may be a magnet, and the metal body may be a metal that can be attracted by the magnet, such as iron, stainless steel, etc. 
     Referring again to  FIG. 1  and  FIG. 2 , the remote control main body  20  includes a front surface and multiple sides connected to the front surface. One of the multiple sides is a lower side of the remote control main body  20 , and the lower side is close to the user when the remote control main body  20  is in use. 
     The holding mechanism  30  can hold the mobile terminal  600  near the lower side of the remote control main body  20 . The lower side is close to the user when the remote control main body  20  is in use, and the holding mechanism  30  can hold the mobile terminal  600  near the lower side. Therefore, the mobile terminal  600  is close to the user when the remote control main body  20  is in use, which facilitates the user to operate the mobile terminal  600  and view the data displayed by the mobile terminal  600 . Further, the lower side of the remote control main body  20  can also support the mobile terminal  600 , thereby improving the stability of the mobile terminal  600 . In some embodiments, the holding mechanism  30  in the extended state can hold the mobile terminal  600  above or below the front surface of the remote control main body  20 . 
     In some embodiments, the holding mechanism  30  in the contracted state abuts against the lower side of the remote control main body  20 . That is, the holding mechanism  30  in the contracted state can be in contact with the lower side surface, further reducing the space occupied by the remote control terminal  100  and improving its portability. Further, the lower side of the remote control main body  20  can also support the holding mechanism  30 , improving the stability of the holding mechanism  30  in the contracted state. The holding mechanism  30  in the contracted state may also abut against the front surface or another side of the remote controller body  20 . 
     In some embodiments, the remote control main body  20  further includes other structures, such as operation devices  251  and function buttons  252  for the user to input remote control commands, antennas  253 , etc. The operating devices  251  and the function buttons  252 , etc., may be disposed on the front surface of the remote control main body  20 . Therefore, the user can easily operate the operation devices  251  and/or the function buttons  252 , etc. 
     The antennas  253  are rotatably connected to the remote control main body  20 . The antennas  253  are rotatable with respect to the remote control main body  20  so that the antennas  253  can be stretched to an in-use state or folded to an accommodated state. When the antennas  253  are folded and in the accommodated state, the space occupied by the remote control terminal  100  is reduced, and the portability of the remote control terminal  100  is improved. 
     Referring to  FIG. 2 , in some embodiments, a receiving member  23  is also disposed at a side of the remote control main body  20  facing the holding mechanism  30 . When the holding mechanism  30  is in the contracted state, at least part of the holding mechanism  30  is in the receiving member  23 . The holding mechanism  30  in extended state protrudes out of the receiving member  23 . Since the holding mechanism  30  in the contracted state is at least partially located in the receiving member  23 , the volume of the remote control terminal  100  can be further reduced, and portability of the remote control terminal  100  can be improved. 
     In some embodiments, the remote control terminal  100  also includes a connection mechanism  50  connected between the remote control main body  20  and the holding mechanism  30 . The holding mechanism  30  is movably connected with the remote control main body  50  through the connection mechanism  50 . 
     In some embodiments, for example, the holding mechanism  30  may be rotatably connected to the remote control main body  20  through the connection mechanism  50 . For example, as shown in  FIG. 2 , the control terminal  100  includes two holding mechanisms  30 , which are rotatably connected to the remote control main body  20  through the connection mechanisms  50 . In the extended state, the two holding mechanisms  30  are spaced apart from each other, forming a space between the two holding mechanisms for holding the mobile terminal  600 . 
     Each of the two holding mechanisms  30  includes a clamping member  32 . When the two holding mechanisms  30  are in the extended state, the clamping members  32  can hold the mobile terminal  600  by clamping two ends of the mobile terminal  600 . Therefore, the holding of the two holding mechanisms  30  to the mobile terminal  600  is more reliable. 
     An anti-skid element (not shown) may be disposed at each of the clamping members  32  to contact with the mobile terminal  600 . The anti-skid element may prevent the mobile terminal  600  from falling off by applying resistance to the mobile terminal  600 . 
     In some embodiments, each of the connection mechanisms  50  includes a rotation rod (not shown), one end of the rotation rod is rotatably connected with the remote control main body  20 , and the other end is rotatably connected with each of the two holding mechanisms  30 . By rotating the rotation rod relative to the remote controller body  20  and rotating the two holding mechanisms  30  relative to the rotation rod, the two holding mechanisms  30  can be extended or contracted, which is a simple and reliable operation. 
     In some embodiments, one end of the rotation rod may include a first rotation shaft (not shown), and the other end of the rotation rod may include a second rotation shaft (not shown). The rotation rod is rotatably connected with the remote controller body  20  through the first rotation shaft, and the rotation rod is rotatably connected with each of the two holding mechanisms  30  through the second rotation shaft. By rotating the rotation rod about the first rotation shaft relative to the remote control main body  20  and rotating each of the two holding mechanisms  30  about the second rotation shaft with respect to the rotation rod, the two holding mechanisms  30  can be extended or contracted. Thereby, the connection mechanism  50  is simple in structure and reliable in use. 
     In some embodiments, the first shaft and/or the second shaft may be a damping shaft to facilitate the positioning between the rotating rod and the remote control main body  20  or the two holding mechanisms  30 , and the positioning between the two holding mechanisms  30  and the remote control main body  20 . Positioning between the rotating rod, the remote control main body  20 , and the two holding mechanisms  30  can also be achieved by other additional positioning devices. 
       FIG. 10  and  FIG. 11  show another remote control terminal  100 ′ according to some embodiments of the present disclosure. The remote control terminal  100 ′ includes a holding mechanism  30 ′ slidably connected with a remote control main body  20 ′ through a connection mechanism  50 ′. The connection mechanism  50 ′ is disposed in a receiving member  23 ′, and does not occupy an external space of the remote controller body  20 ′. This further reduces the volume of the remote control terminal  100 ′. Therefore, the portability and overall appearance of the remote control terminal  100 ′ are improved. The connection mechanism  50 ′ may also be disposed outside the receiving member  23 ′. 
     In some embodiments, the connecting mechanism  50 ′ includes a sliding member  51 . The connecting mechanism  50 ′ is fixedly connected with the holding mechanism  30 ′ and is slidably connected with the remote control main body  20  through the sliding member  51 . The sliding member  51  may be able to slidably move inside the receiving member  23 ′, so that the holding mechanism  30 ′ may move close to or away from the remote control main body  20 ′. Therefore, through the relative sliding between the sliding member  51  and the remote control main body  20 , the holding mechanism  30 ′ can slide relative to the remote control main body  20 , thereby improving the reliability of the sliding of the holding mechanism  30 ′. 
     In some embodiments, the receiving member  23 ′ may include a guiding member (not shown) to engage with the sliding member  51 . With the collaboration between the sliding member  51  and the guiding member, the connection mechanism  50 ′ can drive the holding mechanism  30 ′ to slide along a predetermined direction. Thereby, the sliding of the holding mechanism  30 ′ can be more reliable. 
     In some embodiments, the guiding member may be a guiding groove, and the sliding member  51  may be correspondingly configured as a guiding rail. In some other embodiments, the guiding member may be a guiding rail, while the sliding member  51  may be a guiding groove. Therefore, the sliding member  51  and the guiding member can be simple in structure and reliable in use. 
     In some embodiments, the holding mechanism  30 ′ in the extended state is relatively spaced apart from the remote control main body  20 ′, forming a space between the holding mechanism  30 ′ and the remote control main body  20 ′ for holding the mobile terminal  600 . 
     In some embodiments, the holding mechanism  30 ′ includes a clamping member (not shown). When the holding mechanism  30 ′ is in the extended state, the clamping member can hold the mobile terminal  600  between the remote control main body  20 ′ and the holding mechanism  30 ′ by clamping one end of the mobile terminal  600 . Therefore, the holding of the holding mechanism  30  to the mobile terminal  600  is more reliable. 
     In some embodiments, an anti-skid element (not shown) may be disposed at the clamping member  32  to contact with the mobile terminal  600 . The anti-skid element may prevent the mobile terminal  600  from falling off by applying resistance to the mobile terminal  600 . 
     It is intended that the specification and embodiments be considered as examples only and not to limit the scope of the disclosure. Any modification and equivalently replacement for the technical solution of the present disclosure should all fall in the spirit and scope of the technical solution of the present disclosure.