JP4569898B2 - Cradle device - Google Patents

Description

  The present invention relates to a cradle device on which a portable terminal is placed.

Cradle devices for placing mobile terminals such as mobile phones have been put into practical use, charging secondary batteries of mobile terminals, connecting mobile terminals with personal computers for data communication, etc. In order to do this, a cradle device is used. Therefore, the cradle device is provided with a charging terminal and a data communication connector. When the user places the mobile terminal on the cradle device, the terminal and the connector are connected to the mobile terminal, and charging and data communication are performed. (For example, refer to Patent Document 1).
JP 2003-319048 A

  By the way, when the portable terminal is charged or the portable terminal is used, the portable terminal generates heat. In a state where the mobile terminal is placed on the cradle device, heat cannot be radiated from the mobile terminal, and heat is generated particularly at a portion where the outer surface of the mobile terminal and the outer surface of the cradle device face each other.

  Therefore, an object of the present invention is to provide a cradle device that can dissipate heat from a portable terminal even when the portable terminal is placed.

  In order to solve the above problems, the invention according to claim 1 is a cradle device in which a receiving part for placing the portable terminal in a face-down state is provided on the upper surface of the base body, and the bottom surface of the base body And a plurality of air holes penetrating from the receiving portion to the bottom of the recess, the recess being formed on the base body. The vent hole is provided at a position outside the range as well as the range covered by the connector when viewed from the bottom direction.

  According to the first aspect of the present invention, the plurality of vent holes penetrate from the receiving part to the bottom of the recess at a position outside the range as well as the range covered by the connector when viewed from the bottom surface of the base body. Therefore, it is possible to cause convection between the recessed portion and the receiving portion through the plurality of vent holes. Therefore, even when the portable terminal is placed on the receiving unit, heat is not trapped between the receiving unit and the portable terminal, and heat can be radiated from the portable terminal.

  According to a second aspect of the present invention, in the cradle device according to the first aspect, a plurality of leg portions are projected on the bottom surface.

  According to the second aspect of the present invention, even when the base body of the cradle device is placed on the placement surface such as a desktop with the bottom surface facing down, the bottom surface is lifted from the placement surface by the legs formed on the bottom surface. Since it will be in a state, a recessed part is not obstruct | occluded. Therefore, convection between the recess and the receiving part through the plurality of air holes can be caused, and the heat dissipation of the portable terminal becomes more efficient.

  The invention according to claim 3 is the cradle device according to claim 1 or 2, wherein the receiving portion is formed along a surface facing the receiving portion of the portable terminal, and the portable terminal is received by the receiving device. The receiving portion is provided with a convex portion that is supported in a floating state from the portion.

  According to the invention of claim 3, even when the receiving portion is formed along the surface of the mobile terminal facing the receiving portion, when the mobile terminal is placed on the receiving portion, the convex portion Since the portable terminal is in a state of floating from the receiving part, heat can be radiated through the gap between the portable terminal and the receiving part. Moreover, since the receiving part is formed along the surface of the mobile terminal facing the receiving part, the design of the state in which the mobile terminal is placed on the receiving part can be improved.

  According to a fourth aspect of the present invention, in the cradle device according to the third aspect, the convex portion is provided so as to be locked to the portable terminal.

  According to a fifth aspect of the present invention, in the cradle device according to any one of the first to fourth aspects, a fan is provided in the recess.

  According to the invention which concerns on Claim 5, if the fan in a recessed part operate | moves, forced convection will arise and the convection between the recessed part and receiving part through several ventilation holes will also become large. Therefore, heat can be radiated more efficiently from the mobile terminal.

  According to a sixth aspect of the present invention, in the cradle device according to any one of the first to fifth aspects, the bottom surface is provided with a groove that communicates from the side wall surface of the recess to the outer surface of the base body. It is characterized by that.

  According to the invention which concerns on Claim 6, since the groove | channel which led from the side wall surface of the recessed part to the outer surface of the base body is provided in the bottom face of the base body, the exterior and the recessed part of the base body are connected by the groove. Therefore, convection between the recess and the receiving part through the plurality of air holes can be caused, and the heat dissipation of the portable terminal becomes more efficient.

  According to a seventh aspect of the present invention, in the cradle device according to the first aspect, a heat sink member is provided in the receiving portion so as to close the plurality of vent holes.

  According to the invention of claim 7, if the portable terminal is placed on the receiving part, the heat sink member provided on the receiving part comes into contact with the portable terminal, and the heat of the portable terminal is absorbed by the heat sink member. . The heat absorbed by the heat sink member is radiated to the recess through the plurality of vent holes. Therefore, heat can be efficiently radiated from the portable terminal.

  According to the present invention, even if a portable terminal is placed on the receiving part, heat is not trapped between the portable terminal and the receiving part, and heat can be radiated from the portable terminal.

  The best mode for carrying out the present invention will be described below with reference to the drawings. However, although various technically preferable limitations for implementing the present invention are given to the embodiments described below, the scope of the invention is not limited to the following embodiments and illustrated examples.

[First Embodiment]
FIG. 1 is a perspective view showing the cradle device 1 and the portable terminal 80. As shown in FIG. 1, a portable terminal 80 is placed on the base body 15 of the cradle device 1.

  The portable terminal 80 will be described with reference to FIG. 2A is a front view of the portable terminal 80, FIG. 2B is a side view of the portable terminal 80, and FIG. 2C is a rear view of the portable terminal 80. . The mobile terminal 80 is a foldable mobile phone.

  In the portable terminal 80, the upper casing 81 is connected to the lower casing 82 by a hinge portion 83. A bearing portion 90 of the hinge portion 83 protrudes forward from the lower front surface of the upper housing 81. On the other hand, a rectangular cutout bearing housing part 89 is formed in the upper part of the lower housing 82, and the bearing part 90 is inserted into the bearing housing part 89. The hinge portion 83 has the left-right direction as the axial direction, and the shaft of the hinge portion 83 is connected to the bearing portion 90 and the lower housing 82. The upper casing 81 is rotatable with respect to the lower casing 82 about the axis of the hinge portion 83. When the upper housing 81 is closed with respect to the lower housing 82, the front surface of the lower housing 82 is provided so as to face the front surface of the upper housing 81.

  A locking groove 91 is recessed in the wall surface of the bearing housing portion 89.

  A display unit 84 having a liquid crystal display panel or an electroluminescence display panel is provided on the front surface of the upper housing 81, and a key operation unit 85 having a plurality of push buttons is provided on the front surface of the lower housing 82.

  A battery housing portion is recessed in the rear surface of the lower housing 82, and a battery pack 86 is attached to the battery housing portion, and the battery pack 86 is detachable from the lower housing 82. The battery pack 86 has a rechargeable secondary battery.

  Charging terminals 87 and 88 are formed on the surface of the battery pack 86 with a space left and right. When the battery pack 86 is attached to the lower housing 82, the back surface of the lower housing 82 has a gentle convex shape. On the other hand, the back surface of the upper housing 81 has a gentle convex shape.

  Locking recesses 92 and 93 are formed on the lower side edge of the back surface of the lower housing 82 with a space left and right.

  The cradle device 1 will be described with reference to FIGS. FIG. 3 is a perspective view of the cradle device 1 viewed obliquely from above, FIG. 4 is a bottom view of the cradle device 1, and FIG. 5 is a longitudinal sectional view of the cradle device 1 viewed from the side. FIG. 5 also shows the side surface of the mobile terminal 80 placed.

  As shown in FIG. 4, the resin base body 15 of the cradle device 1 is provided such that the front side is low and the back side is high. As shown in FIGS. 3 to 4, the receiving portion 2 is recessed on the upper surface of the base body 15, and the receiving portion 2 is formed in a concave shape along the back surface of the lower housing 82. The receiving part 2 is also provided so that the rear side is higher than the front side.

  The receiving unit 2 is placed with the back surface of the lower housing 82 facing down with the portable terminal 80 face down, and the back surface of the lower housing 82 faces the receiving unit 2. In a state where the portable terminal 80 is placed on the receiving part 2, the hinge part 83 of the portable terminal 80 is on the rear side, the lower part of the lower housing 82 is on the front side, and the portable terminal 80 is tilted backward. It is in a state.

  Claw portions 3 and 4 as convex portions are formed at the front side edge portion of the receiving portion 2 so as to protrude rearward. The claw portions 3 and 4 correspond to the locking recesses 92 and 93, respectively, and are arranged on the left and right sides with a space therebetween. When the portable terminal 80 is placed on the receiving portion 2, the claw portion 3 is locked to the locking recess 92, and the claw portion 4 is locked to the locking recess 93.

  On the rear side of the claw portion 3, a ridge 5 as a convex portion that is long in the front-rear direction is formed so as to protrude from the receiving portion 2. It is formed so as to protrude from the receiving portion 2. In the state where the portable terminal 80 is placed on the receiving portion 2, the protrusions 5 and 6 are in contact with the back surface of the lower housing 82.

  Immediately behind each of the ridges 5 and 6, charging terminals 7 and 8 are projected. The charging terminals 7 and 8 can be elastically pushed and protrude upward from the receiving portion 2 in a natural state, and are pulled downward from the receiving portion 2 when pressed. When the portable terminal 80 is placed on the receiving portion 2, the charging terminals 7 and 8 come into contact with the terminals 87 and 88 of the portable terminal 80, respectively.

  A claw member 11 as a convex portion is provided on the rear side edge of the receiving portion 2. The claw member 11 protrudes upward from the inside of the base body 15, and a claw directed forward is formed at the tip of the claw member 11. A winding spring 12 is provided inside the base body 15, and the claw member 11 is urged forward by the winding spring 12. When the mobile terminal 80 is placed on the receiving portion 2, the claw member 11 is inserted into the bearing housing portion 89, and the claw of the claw member 11 is locked in the locking groove 91.

  A support convex portion 9 is formed on the left side of the claw member 11, and a support convex portion 10 is formed on the right side of the claw member 11. The support convex portions 9 and 10 protrude at the rear side edge portion of the receiving portion 2 and have a triangular shape when viewed in the left-right direction. When the portable terminal 80 is placed on the receiving portion 2, the upper portions of the support convex portions 9 and 10 are inserted into the bearing storage portion 89, and the front inclined surface of the support convex portions 9 and 10 is at the edge of the bearing storage portion 89. Abut. Even when the portable terminal 80 is placed on the receiving portion 2, the upper housing 81 can be rotated with respect to the lower housing 82, and the bearing portion 90 is inclined on the rear side of the support convex portions 9 and 10. The upper casing 81 stops in a state where it is open with respect to the lower casing 82.

  Push switches 13 and 14 are provided in front of the support convex portions 9 and 10 in the receiving portion 2. The push switches 13 and 14 can be pushed. When the push switches 13 and 14 are pressed, the charging terminals 7 and 8 are energized to allow charging, and when the push switches 13 and 14 are released, the charging terminals 7 and 8 are energized. It is blocked and cannot be charged. When the portable terminal 80 is placed on the receiving unit 2, the push switches 13 and 14 are pushed by the back surface of the lower housing 82.

  As shown in FIGS. 4 to 5, a recess 21 is formed in the bottom surface of the base body 15, and a groove 22 is formed continuously from the recess 21. The concave portion 21 is formed from the front and rear central portion to the rear of the bottom surface of the base body 15. The concave portion 21 has a fan shape when viewed from below, and a portion that becomes a fan-shaped arc is a rear side, and a portion that is a fan-shaped string is a front side.

  The groove 22 communicates from the side wall surface 23 of the concave portion 21 that forms a fan-shaped arc to the outer surface of the base body 15. A female power connector 25 is provided on the side wall surface 24 of the recess 21 that is a fan-shaped string, and the power connector 25 and the groove 22 face each other. The power connector 25 is electrically connected to charging terminals 7 and 8 via push switches 13 and 14.

  As shown in FIG. 6, a male connector 41 of a charging adapter is fitted into the power connector 25, and a wiring 42 connected to the connector 41 is passed through the groove 22. The connector 41 is attachable to and detachable from the connector 25. When the user points his / her finger or the like to the recess 21 and pushes the movable parts 43 and 44 of the connector 41 with the finger, the connector 41 and the connector 25 lock is released.

  As shown in FIGS. 4 to 6, leg portions 26 and 27 are formed to protrude downward on the bottom surface of the base body 15 and behind the recess 21. The leg portions 26 and 27 are on the left and right sides of the groove 22 and are formed along the edge of the recess 21. On the bottom surface of the base body 15 and in front of the recess 21, rubber-like leg portions 28 and 29 are provided so as to protrude downward. The leg portions 28 and 29 are arranged with a space left and right.

  A plurality of vent holes 30 are formed at the bottom of the recess 21. These vent holes 30 penetrate from the bottom of the recess 21 to the receiving portion 2 on the opposite side. As shown in FIG. 3, the vent holes 30 are distributed in the shape of an ellipse that is long in the left-right direction at the center of the receiving portion 2. On the other hand, as shown in FIGS. 5 to 6, the left and right range in which the vent holes 30 are distributed is wider than the left and right width of the connector 41. Therefore, when the connector 41 is fitted to the connector 25, the vent hole 30 is not entirely covered by the connector 41, but several vent holes on the left side and the right side when viewed from below as shown in FIG. 30 is disconnected from the connector 41.

  When the cradle device 1 is used, the base body 15 is placed on a placement surface such as a tabletop with the bottom surface of the base body 15 facing down. The base body 15 is supported by the leg portions 26 to 29, and the bottom surface of the base body 15 is in a state of floating with respect to the placement surface. Therefore, the recess 21 is not closed.

  When the portable terminal 80 is placed on the receiving unit 2 facing upward, the back surface of the lower casing 82 is faced down, and the hinge part 83 is further on the rear side. When the claw portions 3, 4 are locked to the locking recesses 92, 93 and pushed toward the receiving portion 2 on the hinge portion 83 side of the portable terminal 80, the claw member 11 rotates backward against the winding spring 12. The claw of the claw member 11 is engaged with the engagement groove 91. Thereby, although the portable terminal 80 is mounted on the receiving part 2, the portable terminal 80 is supported by the nail | claw parts 3 and 4, the protrusions 5 and 6, the support convex parts 9 and 10, and the nail | claw member 11, and is carried. The back surface of the terminal 80 is in a state of floating with respect to the receiving unit 2. Further, the push switches 13 and 14 are pushed by the back surface of the lower casing 82.

  When the mobile terminal 80 placed on the receiving part 2 is pulled upward, the locking of the claw member 11 and the locking groove 91 is released, and the mobile terminal 80 can be removed.

  Note that the portable terminal 80 can be placed on the receiving portion 2 simply by releasing the portable terminal 80 on the receiving portion 2 with the back surface of the lower housing 82 facing down and the hinge 83 on the rear side. The In this case, since the rear side of the receiving portion 2 is provided high, the portable terminal 80 slides forward due to its own weight, and the claw portions 3 and 4 are naturally locked to the locking recesses 92 and 93, so that the claw member 11 Is naturally locked in the locking groove 91.

  If the connector 41 of the charging adapter is fitted into the power connector 25, the portable terminal 80 can be charged while being placed on the receiving portion 2.

  When the mobile terminal 80 is charged in a mounted state or when the mobile terminal 80 is used, the mobile terminal 80 generates heat, and particularly when the mobile terminal 80 is mounted on the receiving portion 2. Heat tends to accumulate on the back side of the lower housing 82.

  However, since the back surface of the lower housing 82 is in a state of floating from the receiving portion 2, natural convection occurs between the back surface of the lower housing 82 and the receiving portion 2, and thereby heat is radiated from the portable terminal 80. The In particular, since a plurality of vent holes 30 are formed in the receiving portion 2 and these vent holes 30 lead to the recesses 21, natural convection through the vent holes 30 occurs. Therefore, heat is efficiently radiated from the portable terminal 80. Further, since the bottom surface of the base body 15 is floated by the legs 26 to 29, the concave portion 21 communicates with the outside through the gap, so that natural convection is more likely to occur through the plurality of vent holes 30, and The terminal 80 can be radiated more efficiently. Of course, even if the groove 22 is closed by the wiring 42 of the charging adapter, since the recess 21 is not closed, heat can be radiated from the portable terminal 80. When the connector 41 is removed and there is no wiring 42 in the groove 22, the groove 22 becomes a ventilation groove.

  Note that forced convection may be generated through the plurality of vent holes 30. Specifically, a fan is provided at the bottom of the recess 21, and forced convection is generated through the plurality of vent holes 30 by blowing with the fan. Thereby, the portable terminal 80 can be cooled more efficiently than in the case of natural convection. The fan blowing direction may be a direction from the recess 21 toward the receiving portion 2 through the vent hole 30, or conversely, a direction from the receiving portion 2 toward the recess 21 through the vent hole 30. The fan may be an axial fan, a cross-flow fan, or a centrifugal fan.

[Second Embodiment]
Next, a cradle device 1A according to the second embodiment will be described with reference to FIG.
In this cradle device 1A, instead of forming a plurality of vent holes 30 in the central portion of the receiving portion 2, a fan accommodating recess 30A is formed in the central portion of the receiving portion 2, and two fans are provided at the bottom of the fan accommodating recess 30A. 31A is provided. The fan housing recess 30A does not penetrate to the recess 21 on the opposite side. By operating these fans 31A, forced convection is generated in the gap between the back surface of the lower housing 82 and the receiving portion 2, and the portable terminal 80 is cooled. By forming the fan housing recess 30 </ b> A in the receiving portion 2, the fan 31 </ b> A does not collide with the lower housing 82. Note that the cradle device 1A shown in FIG. 7 is configured in the same manner as the cradle device 1 of the first embodiment, except that a fan housing recess 30A and a fan 31A are provided. Therefore, for the cradle device 1A, the same reference numerals are given to the same components as the respective parts of the cradle device 1, and the description thereof is omitted.

[Third Embodiment]
Next, the cradle device 1B according to the third embodiment will be described with reference to FIG.
In this cradle device 1B, a heat sink member 32B is attached to the central portion of the receiving portion 2, and a plurality of air holes 30 are closed by the heat sink member 32B. The heat sink member 32 </ b> B slightly protrudes from the concave surface of the receiving portion 2. The heat sink member 32B is made of a material having high thermal conductivity (eg, metal, alloy, etc.). Alternatively, the heat sink member 32B is a Peltier element, the heat absorption surface of the heat sink member 32B is exposed upward, and the heat dissipation surface faces downward to close the plurality of air holes 30. When the portable terminal 80 is placed on the receiving unit 2, the back surface of the lower housing 82 comes into contact with the heat sink member 32B, and the portable terminal 80 is cooled by the heat sink member 32B. The heat of the heat sink member 32 </ b> B heated by the portable terminal 80 is radiated to the recess 21 through the plurality of vent holes 30. The cradle device 1B shown in FIG. 8 is configured in the same manner as the cradle device 1 of the first embodiment except that a heat sink member 32B is provided. Therefore, for the cradle device 1B, the same components as those in the cradle device 1 are denoted by the same reference numerals, and description thereof is omitted.

  The present invention is not limited to the above embodiments, and various improvements and design changes may be made without departing from the spirit of the present invention.

  For example, even when the heat sink member 32B is provided as in the third embodiment, a fan may be provided at the bottom of the recess 21. Even in this case, the heat sink member 32B is air-cooled by the fan, whereby the back surface of the lower housing 82 can be efficiently cooled.

  Moreover, in each said embodiment, although it supported by the nail | claw part 3,4, the protrusion 5,6, the support convex part 9,10, and the nail | claw member 11 in the state which floated from the receiving part 2 on the back surface of the lower housing | casing 82. Instead of using all of these, the back surface of the lower housing 82 may be supported in a state of being lifted from the receiving portion 2.

2 is a perspective view showing a cradle device 1 and a portable terminal 80. FIG. 3 is a three-side view of a portable terminal 80. FIG. 1 is a perspective view of a cradle device 1. FIG. 2 is a bottom view of the cradle device 1. FIG. 1 is a longitudinal sectional view of a cradle device 1. FIG. FIG. 4 is a bottom view of the cradle device 1 with a connector 41 attached. It is a perspective view of 1 A of cradle apparatuses seen from diagonally upward. It is the longitudinal cross-sectional view of the cradle apparatus 1B seen from the side.

Explanation of symbols

1, 1A, 1B Cradle device 2 Receiving part 3, 4 Claw part (convex part)
5, 6 ridges (convex parts)
9, 10 Support convex part 11 Claw member (convex part)
21 recess 30 vent hole 26-29 leg 30A fan housing recess 31A fan 32B heat sink member 80 portable terminal

Claims (7)

A cradle device provided on the upper surface of the base body with a receiving portion for placing the portable terminal face down,
A concave portion provided on the bottom surface of the base body, a power connector provided on a side wall surface of the concave portion, and a plurality of ventilation holes penetrating from the receiving portion to the bottom of the concave portion. The cradle device is characterized in that the vent hole is provided at a position outside the range as well as a range covered by the connector when viewed from the bottom surface of the base body .   The cradle device according to claim 1, wherein a plurality of leg portions are protruded on the bottom surface. The receiving portion is formed along a surface facing the receiving portion of the mobile terminal,
The cradle device according to claim 1, wherein a convex portion that supports the portable terminal in a state of floating from the receiving portion is provided on the receiving portion.   The cradle device according to claim 3, wherein the convex portion is provided to be locked to the portable terminal.   The cradle device according to any one of claims 1 to 4, wherein a fan is provided in the recess.   The cradle device according to any one of claims 1 to 5, wherein a groove is provided on the bottom surface so as to communicate from a side wall surface of the recess to an outer surface of the base body.   The cradle device according to claim 1, wherein a heat sink member is provided in the receiving portion so as to close the plurality of vent holes.

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