JP7322827B2 - wireless power supply - Google Patents

Description

The present invention relates to a wireless power supply device.

2. Description of the Related Art Conventionally, in a vehicle, there has been proposed a structure that accommodates a portable terminal, which is an electronic device such as a smart phone, and wirelessly supplies power. For example, a wireless power supply device has been proposed in which the positions of the power supply coil of the housing and the power reception coil of the mobile terminal are automatically adjusted.

This wireless power supply device is installed in the passenger compartment of a vehicle and can support a mobile terminal. The wireless power supply device includes a housing including a power supply coil, an ECU, and left and right arms. The feeding coil feeds the mobile terminal. The left arm and right arm support the mobile terminal. Further, the ECU detects the difference between the distance between the power supply coil and the left arm and the right arm and the distance between the power receiving coil of the mobile terminal and a part of the mobile terminal based on the shape of the mobile terminal detected by the ECU. . Then, the left arm and the right arm are controlled so that the difference in distance is within a predetermined range (see Patent Document 1, for example).

Japanese Patent Application Laid-Open No. 2016-5311

In the wireless power supply device described in Patent Document 1, when the ECU detects the approach of the mobile terminal from the image acquired from the camera, complicated control such as position control of the distance between the mobile terminal and the left arm and the right arm is performed. The problem was that it required a structure.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a wireless power supply device capable of adjusting the power supply position based on the width and height of an electronic device such as a smartphone and supplying power to the electronic device with a simple configuration.

[1] The present invention provides a front and a back of an electronic device, a right end and a left end that are sides connecting the front and the back, and an upper end that is a side connecting the front and the back, a holder case for accommodating therein the electronic device having an outer shape formed at a lower end portion thereof in an inserted state; a side end contact portion for contacting the right end portion and the left end portion of the electronic device; At least one of the side end contact portions has a biasing force toward the other end side of the right end portion or the left end portion and the right end portion or the left end portion. a support mechanism that supports the electronic device while being in contact with the left end thereof; A wireless power supply device is provided in which the lower end contact portion is positioned at a predetermined height direction when the end contact portion is at a predetermined position from the central axis.
[2] When the electronic device is not inserted into the side end contact portion, the distance between the right end contact portion and the left end contact portion is a first distance smaller than the width dimension of the electronic device. It may be a wireless power supply device.
[3] The support mechanism has an unlocked state in which the biasing force is generated and a locked state in which the biasing force is not generated. In the wireless power supply device, the distance between the contact portion and the left end contact portion may be a second distance larger than the width dimension of the electronic device.
[4] Further, the support mechanism includes a right support member having the right end portion and the lower end contact portion, and a left support member having the left end portion and the lower end contact portion. , the right support member and the left support member may be slidably supported by the holder case with the biasing force.
[5] Further, in the wireless power supply device, the predetermined position may be a position from the side end contact portion to a central axis between the right end portion and the left end portion.
[6] The support mechanism includes a right support member having the right end portion, a left support member having the left end portion, and a lower support member having the lower end contact portion. and when the right end portion and the left end portion are at predetermined positions from the central axis, the lower support member is interlocked with the right support member and the left support member to extend in a predetermined height direction. It may be a wireless power supply device that serves as a position.
[7] Further, the right support member, the left support member, and the lower support member are each slidably supported by a holder case, and the lower support member is connected to the right support member and the lower support member via a cam mechanism. It may be a wireless power supply device that is interlocked with the left support member.
[8] The support mechanism includes either a right support member including the right end contact portion and the lower end contact portion, or a left support member including the left end contact portion and the lower end contact portion. The wireless power supply device may be configured to have the right support member or the left support member being slidably supported by the holder case with the biasing force.
[9] Further, in the wireless power supply device, the predetermined position may be a position from the right end portion to the left end contact portion, or from the left end portion to the right end contact portion.

According to the wireless power supply device of the present invention, the power supply position can be adjusted based on the width and height of an electronic device such as a smart phone, and power can be supplied to the electronic device with a simple configuration.

FIG. 1(a) is a top plan view of the wireless power supply device according to the first embodiment of the present invention, and FIG. 1(b) is a cross-sectional view taken along the line AA of FIG. 1(a). FIG. 2 shows an example in which the wireless power supply device is installed in a vehicle, and is a three-dimensional perspective view of the interior of the vehicle showing a case in which the wireless power supply device is installed in the center console. FIG. 3 is a graph in which the horizontal axis plots the distance X in the width (right) direction from the center CL of various electronic devices, and the vertical axis plots the distance Z from the feeding coil center G to the lower end of the electronic device. It is a diagram showing a regression line obtained by the method of least squares from each plot. FIG. 4(a) is a top plan view of the wireless power supply device according to the first embodiment of the present invention, and FIG. 4(b) is a view of FIG. 4(a) from direction B. A front view, FIG. 4(c), is a sectional view taken along line CC of FIG. 4(a). FIG. 5(a) is a view corresponding to FIG. 4(a) showing a state in which the electronic device is being inserted into the holder case from above in the wireless power supply device according to the first embodiment of the present invention. (b) is a view corresponding to FIG. 4(b) during insertion, and FIG. 5(c) is a view corresponding to FIG. 4(c) during insertion. FIG. 6(a) is a view corresponding to FIG. 5(a) showing a state in which the electronic device has been completely inserted into the holder case from above in the wireless power supply device according to the first embodiment of the present invention. (b) is a view corresponding to FIG. 5(b) when the insertion is completed, and FIG. 6(c) is a view corresponding to FIG. 5(c) when the insertion is completed. FIG. 7(a) is a top plan view of a wireless power supply device according to a second embodiment of the present invention, and FIG. 7(b) is a view of FIG. A front view, FIG. 7(c), is a cross-sectional view taken along line EE of FIG. 7(a). FIG. 8(a) is a view equivalent to FIG. 7(a) in which the electronic device is accommodated in the holder case and the support mechanism is in the locked state in the wireless power supply device according to the second embodiment of the present invention. 8(b) is a view corresponding to FIG. 7(b), and FIG. 8(c) is a view corresponding to FIG. 7(c). FIG. 9(a) is a view equivalent to FIG. 8(a) in which the electronic device is accommodated in the holder case and the support mechanism is not locked in the wireless power supply device according to the second embodiment of the present invention. 9(b) is a view corresponding to FIG. 8(b), and FIG. 9(c) is a view corresponding to FIG. 8(c). FIG. 10 is an exploded perspective view of a wireless power supply device according to a third embodiment of the invention. FIG. 11(a) is a top plan view of a wireless power supply device according to a third embodiment of the present invention, and FIG. 11(b) is a view of FIG. 11(a) from direction F. It is a front view. FIG. 12(a) is a cross-sectional view taken along line GG of FIG. 11(a) showing a state in which an electronic device having a small shape is attached to the wireless power supply device according to the third embodiment of the present invention; FIG. 12(b) is a cross-sectional view taken along line GG of FIG. 11(a) showing a state in which a large electronic device is attached. FIG. 13 is a front view of a wireless power supply device according to a fourth embodiment of the present invention. FIG. 14 shows, in the wireless power supply device according to the fourth embodiment of the present invention, the horizontal axis represents the distance X from the left end portion to the right contact portion of various electronic devices, and the distance from the feeding coil center G to the lower end of the electronic device. is a graph plotting the distance Z on the vertical axis, showing a regression line obtained from each plot by the method of least squares.

The wireless power supply device 1 according to the embodiment of the present invention includes a front surface 230 and a rear surface 240 of the electronic device 200, a right end portion 211 which is a side portion connecting the front surface 230 and the rear surface 240, a left end portion 212, and a front surface 230. A holder case 10 that accommodates an electronic device 200 having an outer shape formed by an upper end portion 201 and a lower end portion 202 that connect a rear surface 240 and a right end portion 211 of the electronic device 200 . , side end contact portions (right end contact portion 32, left end contact portion 42) that contact the left end portion 212, and lower end contact portions (33, 43) that the lower end portion 202 contacts; At least one of the end contact portions (the right end contact portion 32 and the left end contact portion 42) is urged toward the right end portion 211 or the left end portion 212 toward the other end portion between the right end portion 211 and the left end portion. A support mechanism 30 that supports the electronic device 200 in contact with the portion 212, and a power feeder 50 (feed coil 52) that feeds power from the front surface 230 or the back surface 240 side of the electronic device 200 in a contactless manner. The mechanism 30 is configured such that the lower end contact portions (33, 43) are at the predetermined Z position in the height direction when the right end contact portion 32 is at the predetermined X position. The left end contact portion 42 is located at a position (−X) symmetrical to the right end contact portion 32 with respect to the central axis CL.

The electronic device 200 is a smart phone, a mobile phone, a mobile terminal, or the like, but in the present embodiment, the electronic device is assumed to be a smart phone. Also, charging is assumed to be included in power feeding.

[First Embodiment]
FIG. 1(a) is a top plan view of the wireless power supply device according to the first embodiment of the present invention, and FIG. 1(b) is a cross-sectional view taken along the line AA of FIG. 1(a). In the first embodiment, the support mechanism 30 includes a right side support member 31 having a right end contact portion 32 and a lower end contact portion 33, and a left side support member 31 having a left end contact portion 42 and a lower end contact portion 43. It is configured to have a support member 41 . That is, in the first embodiment, the support mechanism 30 has a two-piece configuration in which the electronic device 200 is supported on the left, right, and bottom sides by two members, the right support member 31 and the left support member 41. ing. Further, in the first embodiment, the support mechanism 30 is configured without a lock mechanism.

As shown in FIG. 1, a wireless power supply device 1 according to an embodiment of the present invention accommodates an electronic device 200 such as a mobile phone or a smart phone to which power is supplied in a contactless manner by inserting it into a holder case 10. The device 200 is accommodated with the upper end portion 201 protruding from the wireless power supply device 1 . The electronic device 200 housed in the holder case 10 is supported by the support mechanism 30 so that the electronic device 200 and the power feeder 50 are in a positional relationship suitable for the power feeding and charging conditions. done by contact.

FIG. 2 shows an example in which the wireless power supply device is installed in a vehicle, and is a three-dimensional perspective view of the interior of the vehicle showing a case in which the wireless power supply device is installed in the center console. For example, as shown in FIG. 2, the holder case 10 of the wireless power supply device 1 is attached to the center console 310 or the like of the vehicle 300 . A driver and a passenger can insert an electronic device 200 such as a mobile phone or a smart phone into the wireless power supply device 1 from the upper side to supply power and charge as described above.

For example, in conventional wireless smartphone charging, the height direction position of the smartphone depends on the smartphone housing. In addition, since the height position of the power receiving coil is different for each smartphone, it is necessary to increase the size of the power transmitting coil in order to fit within the charging range of a plurality of smartphones. In addition, some types have poor charging efficiency due to variations in the position of the receiving coil.

In the present embodiment, in order to solve the problem of reduced charging efficiency due to misalignment of the center positions of the power transmitting coil and the power receiving coil, attention is focused on the relationship between the width and height of the smartphone, and the height is adjusted according to the size. Specifically, since there is a correlation between the height and width of an electronic device such as a smartphone, by giving an appropriate movable angle, the position in the height direction is corrected according to the width. As a result, the center positional deviation of the power receiving coil can be reduced, and an increase in coil size can be suppressed. In addition, since the variation in the position of the power receiving coil is reduced, an effect of uniform charging efficiency can be expected for many types.

FIG. 3 is a graph in which the horizontal axis plots the distance X in the width (right) direction from the center CL of various electronic devices, and the vertical axis plots the distance Z from the feeding coil center G to the lower end of the electronic device. It is a diagram showing a regression line obtained by the method of least squares from each plot. In FIG. 3, iPhone 8, iPhone 8 plus, Phone X, iPhone Xs, iPhone Xs Max, iPhone XR, Galaxy S6, Galaxy S7, Galaxy S8, Galaxy S8 plus, Galaxy S9, Galaxy S9 plus, Galaxy Note 9, Galaxy S10 plus, Galaxy S10, V30 plus, XPERIAXZ2, XPERIAXZ3, AQUOS R3, TORQUE G04, HUAWEI P20, Pixel 3, Pixel 3a, Pixel 3 XL, (In the above, iPhone, Galaxy, XPERIA, AQUOS, TORQUE, HUAWEI, Pixel registered trademark), the distance X in the width (right) direction from the center CL of 24 electronic devices and the distance Z from the feed coil center G to the lower end of the electronic device are plotted on the vertical axis.

A regression line RL1 was obtained from each plot in FIG. 3 by the method of least squares, and the line RL1 is shown in the figure. This straight line RL1 is a right downward straight line, and represents that the distance X in the width (right) direction from the center CL of the electronic device and the distance Z from the feeding coil center G to the lower end of the electronic device show a constant proportional relationship. ing.

For this reason, the support mechanism 30 is configured such that when the right and left ends are at a predetermined X position from the center CL, the lower end contact portion is at a predetermined Z position in the height direction. , the center of the electronic device can be made to coincide with or close to the feeding coil center G.

Each plot in FIG. 3 has a slight variation from the regression line RL1 by the method of least squares. , the power supply position can be adjusted based on the width and height of the electronic device such as a smartphone, and power can be supplied to the electronic device with a simple configuration. It should be noted that this feeding position is approximately the feeding coil center G regardless of the type of the electronic device 200 . Specifically, the support mechanism 30 is translated at 58.2° as shown in FIG. Therefore, it is possible to align with the coil regardless of the size of the electronic device. An example is 58.2°, but considering the size of the smartphone and the coil, similar effects can be obtained if the angle is in the range of 55° to 65°.

(Holder case 10)
FIG. 4(a) is a top plan view of the wireless power supply device according to the first embodiment of the present invention, and FIG. 4(b) is a view of FIG. 4(a) from direction B. A front view, FIG. 4(c), is a sectional view taken along line CC of FIG. 4(a). As shown in FIGS. 1(a), 1(b), and 4(a) to 4(c), the holder case 10 accommodates the electronic device 200 in the interior 11 thereof. The holder case 10 has a box shape having an interior 11 roughly formed by a rear wall portion 12 , a front wall portion 13 , a right wall portion 14 , a left wall portion 16 and a bottom portion 18 . The holder case 10 is made of, for example, metal (sheet metal shape), hard resin, or the like.

As shown in FIGS. 1A and 1B, a power feeder 50 (feeding coil 52) is attached to the rear wall portion 12, and the electronic device 200 is placed at a predetermined position inside 11 of the holder case 10. Wireless power supply is possible in the housed state.

As shown in FIG. 1B, the right wall portion 14 and the left wall portion 16 of the holder case 10 are arranged such that the right side portion 31a of the right support member 31 and the left side portion 41a of the left support member 41 are located inside the holder case 10. Openings 15, 17 are provided to allow entry.

Further, as shown in FIG. 4B, the front wall portion 13 of the holder case 10 is provided with support portions 18a and 18b for slidably supporting the right support member 31. As shown in FIG. Similarly, support portions 19a and 19b for slidably supporting the left support member 41 are erected.

Further, as shown in FIG. 4(b), on the front wall portion 13 of the holder case 10, there is provided a rotational support for rotationally supporting the pinion gear 60 so that the right support member 31 and the left support member 41 can slide in conjunction with each other. A shaft 61 is erected. Moreover, mounting portions 82a and 82b of the damper member 80 are provided for adjusting the sliding movement direction of the right support member 31 and the left support member 41 and imparting a damper action. Further, a locking portion 85 is provided for locking the end portion 70a of the biasing spring 70 that applies the biasing force f1 to the right support member 31 and the left support member 41. As shown in FIG.

(Support mechanism 30)
The right support member 31 is roughly composed of a right end contact portion 32, a lower end contact portion 33, and a slide portion 34, as shown in FIGS. The right end contact portion 32 has an inclined surface 32 a that contacts the right end portion 211 of the electronic device 200 . This inclined surface 32 a contacts the right end portion 211 of the electronic device 200 to press the rear surface 240 of the electronic device 200 toward the power feeder 50 . As a result, the electronic device 200 becomes closer to the power supply device 50 (power supply coil 52), so that power supply and charging efficiency are increased, and power supply and charging can be easily performed. Moreover, as shown in FIG.1(b), the right end contact part 32 is provided with the upper inclined surface 32b. This makes it easy to insert electronic devices 200 having different widths into the interior 11 of the holder case 10 from above.

As shown in FIGS. 1B and 4C, the upper surface of the lower end contact portion 33 of the right support member 31 serves as a contact surface 33a that contacts the lower end portion 202 of the electronic device 200. As shown in FIG. . When the electronic device 200 is inserted into the interior 11 of the holder case 10 from above and the lower end portion 202 of the electronic device 200 comes into contact with the contact surface 33a, the electronic device 200 is set at a predetermined power feeding position.

As shown in FIG. 4B, the slide portion 34 of the right support member 31 is plate-shaped so as to be slidable while being in contact with the front wall portion 13 of the holder case 10 . The slide portion 34 is formed with elongated holes 35a and 35b. The support portions 18a and 18b are slidably fitted into the elongated holes 35a and 35b, and the right support member 31 is supported so as to be slidable in the S1 and S2 directions. A rack gear portion 36 is formed so that the slide movement described above is synchronized with the left support member 41 .

Similarly, the left support member 41 is roughly composed of a left end contact portion 42, a lower end contact portion 43, and a slide portion 44, as shown in FIGS. The left end contact portion 42 has an inclined surface 42 a that contacts the left end portion 212 of the electronic device 200 . The inclined surface 42 a contacts the left end portion 212 of the electronic device 200 to press the electronic device 200 toward the back surface 240 . Moreover, as shown in FIG.1(b), the left end contact part 42 is provided with the upper inclined surface 42b.

The upper surface of the lower end contact portion 43 of the left support member 41 serves as a contact surface 43 a that contacts the lower end portion 202 of the electronic device 200 . When the electronic device 200 is inserted into the interior 11 of the holder case 10 from above and the lower end 202 of the electronic device 200 comes into contact with the contact surface 43a, the electronic device 200 is set at a predetermined power feeding position.

As shown in FIG. 4B, the slide portion 44 of the left support member 41 is shaped like a plate that can slide in contact with the front wall portion 13 of the holder case 10 . The slide portion 44 is formed with elongated holes 45a and 45b. The support portions 19a and 19b are slidably fitted into the elongated holes 45a and 45b to support the left support member 41 so as to slide and move in the T1 and T2 directions. A rack gear portion 46 is formed so that the slide movement described above is synchronized with the right support member 31 .

As shown in FIG. 4B, the right support member 31 and the left support member 41 include a pinion gear 60 rotatable around a rotation support shaft 61 and damper gears of a damper member 80 attached to attachment portions 82a and 82b. Via 81, they slide in conjunction with each other. That is, the rack gear portion 36 of the right support member 31, the rack gear portion 36 and the damper gear 81, and the damper gear 81 and the rack gear portion 46 of the left support member 41 are meshed and moved. As a result, the right support member 31 and the left support member 41 can slide in the directions S1 and T1 shown in FIG.

As shown in FIG. 4B, the left support member 41 is engaged with the end portion 70b of the biasing spring 70, and the end portion 70a of the biasing spring 70 is engaged with the engaging portion 85 of the holder case 10. It is Since the urging spring 70 is attached in an extended state, the right support member 31 and the left support member 41 are urged in the S1 and T1 directions shown in FIG. 4B in the initial state.

As shown in FIG. 4C, the side end contact portions (the right end contact portion 32 and the left end contact portion 42) are in contact with the right end contact portion 32 and the left end contact portion when the electronic device 200 is not inserted. The distance from the portion 42 is a first interval W1 that is smaller than the width dimension of the electronic device 200 . It should be noted that the first distance W1 is the smallest width dimension of various electronic devices 200 applied to the wireless power supply device 1 according to the present embodiment.

(Power feeder 50)
As shown in FIG. 1( a ), the power feeder 50 is attached to the rear wall portion 12 of the holder case 10 . In this state, the power feeding coil 52 is arranged to face a power receiving coil (not shown) mounted inside the electronic device 200 housed inside the holder case 10 .

As shown in FIGS. 1A and 1B, the power feeding coil 52 is electromagnetically coupled to a power receiving coil (not shown) mounted inside the electronic device 200 housed in the holder case 10. Power supply and charge. By energizing the power feeding coil 52 , the power feeding device 50 enables non-contact power feeding and charging to the electronic device 200 via the power receiving coil of the electronic device 200 by electromagnetic induction. It should be noted that the power supply device 50 can supply power and charge when the vehicle 300 is in the driving mode or the ACC mode, for example, so that the electronic device 200 can be powered and charged simply by inserting and placing the electronic device 200 in the wireless power supply device 1 . becomes possible.

(Operation of wireless power supply device 1 according to first embodiment)
FIG. 5(a) is a view corresponding to FIG. 4(a) showing a state in which the electronic device is being inserted into the holder case from above in the wireless power supply device according to the first embodiment of the present invention. (b) is a view corresponding to FIG. 4(b) during insertion, and FIG. 5(c) is a view corresponding to FIG. 4(c) during insertion.

As shown in FIGS. 5A to 5C, the electronic device 200 is inserted into the holder case 10 from above. First, the lower end portion 202 of the electronic device 200 is inserted downward L while contacting the upper inclined surface 32 b of the right support member 31 and the upper inclined surface 42 b of the left support member 41 . As a result, the right support member 31 and the left support member 41 move while sliding in the S2 and T2 directions, respectively, while resisting the biasing force f1.

As shown in FIG. 5C, the right end portion 211 and the left end portion 212 of the electronic device 200 move downward while contacting the inclined surface 32a of the right support member 31 and the inclined surface 42a of the left support member 41, respectively. When inserted into L, the position of the right support member 31 in the X direction is determined by the dimension of the electronic device 200 in the width direction.

By determining the position of the right support member 31 in the X direction, the vertical positions of the contact surface 33a of the right support member 31 and the contact surface 43a of the left support member 41 are also determined.

At the time of this insertion, the electronic device 200 is in a downward direction L while being pressed against the rear wall portion 12 of the holder case 10 at the inclined surfaces 32a and 42a, as shown in FIG. 5(a). inserted.

FIG. 6(a) is a view corresponding to FIG. 5(a) showing a state in which the electronic device has been completely inserted into the holder case from above in the wireless power supply device according to the first embodiment of the present invention. (b) is a view corresponding to FIG. 5(b) when the insertion is completed, and FIG. 6(c) is a view corresponding to FIG. 5(c) when the insertion is completed.

As shown in FIG. 6C, the lower end 202 of the electronic device 200 is inserted in the downward direction L until it contacts the contact surface 33a of the right support member 31 and the contact surface 43a of the left support member 41. .

In this state, the position of the electronic device 200 is determined, and it is accommodated in the inside 11 of the holder case 10 at a position where the electronic device 200 can be supplied with power and charged while being pressed against the rear wall portion 12 .

In FIG. 6(c), the position of the electronic device 200 is based on the straight line RL1 shown in FIG. configured to be related. Therefore, the center of the electronic device 200 can be positioned on or near the center G of the feed coil. Accordingly, power feeding and charging can be performed in a non-contact manner by the power feeder 50 (feeding coil 52).

After the electronic device 200 has been supplied with power and charged, the user can take out the electronic device 200 from the wireless power supply device 1 by, for example, grasping the upper portion of the electronic device 200 and pulling it upward.

(Effect of the first embodiment)
According to the wireless power supply device 1 according to the first embodiment, when the right end contact portion 32 is at the predetermined X position from the central axis CL by the support mechanism 30, the lower end contact portions (33, 43) are moved to the predetermined position. is configured to be the Z position in the height direction. As a result, the positional relationship between the electronic device 200 and the power feeder 50 is suitable for the power feeding and charging conditions, so that the power feeding and charging can be performed efficiently in a non-contact manner.

[Second embodiment]
In the second embodiment, as in the first embodiment, the support mechanism 30 includes a right support member 31 having a right end contact portion 32 and a lower end contact portion 33, and a left end contact portion 42. A left support member 41 having a lower end contact portion 43 is provided. That is, the second embodiment has a two-piece configuration in which two members, the right support member 31 and the left support member 41, support the electronic device 200 on the left, right, and bottom sides. In the second embodiment, the support mechanism 30 has a lock mechanism. The second embodiment has a lock mechanism in the first embodiment, and differs in the direction of slide movement during operation. A description follows.

FIG. 7(a) is a top plan view of a wireless power supply device according to a second embodiment of the present invention, and FIG. 7(b) is a view of FIG. A front view, FIG. 7(c), is a cross-sectional view taken along line EE of FIG. 7(a). The states of FIGS. 7A to 7C are initial (standby) states in which the electronic device 200 is not housed and the support mechanism is in the locked state.

As shown in FIG. 7(b), a lock member 90 is attached to the left support member 41. As shown in FIG. A locking member 91 for locking the locking member 90 is attached to the front wall portion 13 of the holder case 10 .

As shown in FIG. 7B, in the initial (standby) state in which the support mechanism is locked, the locking member 90 is pushed into and locked by the locking member 91 . That is, the right support member 31 and the left support member 41 are locked while being biased in the S2 and T2 directions by the biasing force f1. Further, when the lock member 90 is pushed again in the direction of the locking member 91, the lock mechanism is released to be in the unlocked state. As a result, the right support member 31 and the left support member 41 can slide while being biased in the S2 and T2 directions by the biasing force f1.

Here, as shown in FIG. 7C, the side end contact portions (the right end contact portion 32 and the left end contact portion 42) are locked when the electronic device 200 is not inserted. The distance between 32 and left end contact portion 42 is a second interval W2 larger than the width dimension of electronic device 200 . That is, in the wireless power supply device 1 according to the second embodiment of the present invention, the distance between the right end contact portion 32 and the left end contact portion 42 is locked at the second interval W2 in the initial (standby) state. . It should be noted that the second distance W2 is the largest width dimension of various electronic devices 200 applied to the wireless power supply device 1 according to the present embodiment.

(Operation of wireless power supply device 1 according to second embodiment)
FIG. 8(a) is a view equivalent to FIG. 7(a) in which the electronic device is accommodated in the holder case and the support mechanism is in the locked state in the wireless power supply device according to the second embodiment of the present invention. 8(b) is a view corresponding to FIG. 7(b), and FIG. 8(c) is a view corresponding to FIG. 7(c). FIG. 9(a) is equivalent to FIG. 8(a) in which the electronic device is accommodated in the holder case and the support mechanism is not locked in the wireless power supply device according to the second embodiment of the present invention. 9(b) is a view corresponding to FIG. 8(b), and FIG. 9(c) is a view corresponding to FIG. 8(c).

As shown in FIGS. 8A to 8C, the electronic device 200 is inserted downward L into the holder case 10 from above into the wireless power supply device 1 in which the support mechanism is locked in the initial (standby) state. . As shown in FIG. 8C, for example, the upper end 201 of the electronic device 200 is pushed downward. As a result, the lower end portion 202 of the electronic device 200 pushes the contact surfaces 33a and 43a downward.

The right support member 31 and the left support member 41 move while sliding in the S2 and T2 directions against the biasing force f1. The lock member 90 of the left support member 41 is pushed again toward the locking member 91, releasing the lock mechanism to an unlocked state.

As shown in FIG. 9C, the right end portion 211 and the left end portion 212 of the electronic device 200 come into contact with the inclined surface 32a of the right support member 31 and the inclined surface 42a of the left support member 41, respectively. In this contact state, the position of the right support member 31 in the X direction is determined by the dimension of the electronic device 200 in the width direction. Further, by determining the position of the right support member 31 in the X direction, the vertical positions of the contact surface 33a of the right support member 31 and the contact surface 43a of the left support member 41 are also determined.

At the time of insertion, the electronic device 200 is in a state of being abutted against the rear wall portion 12 of the holder case 10 by the upper inclined surface 32b and the upper inclined surface 42b, as shown in FIG. 9(a). . In this state, the position of the electronic device 200 is determined, and it is accommodated in the inside 11 of the holder case 10 at a position where the electronic device 200 can be supplied with power and charged while being pressed against the rear wall portion 12 .

In FIG. 9(c), the position of the electronic device 200 is based on the straight line RL1 shown in FIG. configured to be related. Therefore, the center of the electronic device 200 can be positioned on or near the center G of the feed coil. Accordingly, power feeding and charging can be performed in a non-contact manner by the power feeder 50 (feeding coil 52).

After the electronic device 200 has been supplied with power and charged, the user pushes the upper end 201 of the electronic device 200 downward, for example, as shown in FIG. 9C. As a result, the lower end portion 202 of the electronic device 200 pushes the contact surfaces 33a and 43a downward.

The right support member 31 and the left support member 41 move while sliding in the S2 and T2 directions against the biasing force f1. The lock member 90 of the left support member 41 is pushed in the direction of the locking member 91, the lock mechanism operates, and the locked state shown in FIGS. 8(b) and 8(c) is obtained.

The user can take out the electronic device 200 from the wireless power supply device 1 by, for example, grabbing the upper portion of the electronic device 200 and pulling it upward.

(Effect of Second Embodiment)
The wireless power supply device 1 according to the second embodiment has the following effects in addition to the effects of the first embodiment.

In the wireless power supply device 1 according to the second embodiment, the support mechanism 30 has a lock mechanism. Accordingly, when the electronic device 200 is inserted into the holder case 10 , the right end portion 211 and the left end portion 212 of the electronic device 200 are not subjected to the biasing force from the right support member 31 and the left support member 41 . As a result, the electronic device 200 can be inserted into and removed from the holder case 10 without resistance.

[Third Embodiment]
FIG. 10 is an exploded perspective view of a wireless power supply device according to a third embodiment of the invention. In the third embodiment, as shown in FIG. 10, a support mechanism 130 includes a right support member 131 having a right end, a left support member 141 having a left end, and a lower end contact portion. and a lower support member 151 provided. That is, the third embodiment has a three-piece configuration in which the electronic device 200 is supported on the left, right, and bottom sides by the right support member 131, the left support member 141, and the lower support member 151. ing. Further, in the third embodiment, the support mechanism 30 has a lock mechanism.

(Holder case 110)
FIG. 11(a) is a top plan view of a wireless power supply device according to a third embodiment of the present invention, and FIG. 11(b) is a view of FIG. 11(a) from direction F. It is a front view. The holder case 110 has a box shape having an interior 111 roughly formed by a rear wall portion 112 , a front wall portion 113 , a right wall portion 114 , a left wall portion 116 and a bottom portion 118 . The holder case 110 is made of, for example, metal (sheet metal shape), hard resin, or the like.

As shown in FIG. 10 , a power feeder 50 (feeding coil 52 ) is attached to the rear wall portion 112 , and when the electronic device 200 is housed at a predetermined position inside 111 of the holder case 110 , wireless Power supply is possible.

As shown in FIG. 10 , the right wall portion 114 and the left wall portion 116 of the holder case 110 are arranged so that the right side portion 131 a of the right support member 131 and the left side portion 141 a of the left support member 141 can enter the inside 111 of the holder case 110 . are provided with openings 115 and 117 .

As shown in FIG. 10, the front wall portion 113 of the holder case 110 is provided with support portions 118a and 118b for supporting the right support member 131 and the left support member 141 so as to be slidable in the left-right direction. ing.

As shown in FIG. 10, the front wall portion 113 of the holder case 110 is provided with supporting portions 119a and 119b for vertically slidably supporting the lower support member 151. As shown in FIG. The upper flange portion 120 of the holder case 110 is formed with a hole portion 121 that is loosely fitted to the shaft portion 154 of the lower support member 151 to prevent it from coming off. Further, below the holder case 110, a mounting portion 122 for mounting the biasing spring 170 and the lock member 190 is formed.

(Support Mechanism 130))
The right support member 131 is roughly composed of a right end contact portion 132 and a slide portion 134, as shown in FIGS. The right end contact portion 132 has an inclined surface 132 a that contacts the right end portion 211 of the electronic device 200 . When this inclined surface 132 a abuts against the right end portion 211 of the electronic device 200 , the rear surface 240 of the electronic device 200 is pressed against the power feeder 50 side. As a result, the electronic device 200 becomes closer to the power supply device 50 (power supply coil 52), so that power supply and charging efficiency are increased, and power supply and charging can be easily performed.

As shown in FIGS. 10 and 11(b), the slide portion 134 of the right support member 131 is formed with an elongated hole 135 in the left-right direction. The elongated hole 135 is slidably fitted into the support portion 118 a of the holder case 110 and has a plate shape that can slide left and right while in contact with the front wall portion 113 of the holder case 110 . Further, the slide portion 134 is formed with protrusions 136a and 136b.

Similarly, the left support member 141 is roughly composed of a left end contact portion 142 and a slide portion 144 as shown in FIGS. 10, 11(a) and (b). The left end contact portion 142 has an inclined surface 142 a that contacts the left end portion 212 of the electronic device 200 .

Further, as shown in FIGS. 10 and 11(b), the slide portion 144 of the left support member 141 is formed with an elongated hole 145 in the left-right direction. The elongated hole 145 is slidably fitted into the support portion 118b of the holder case 110 and has a plate shape that can slide left and right while in contact with the front wall portion 113 of the holder case 110 . Further, the slide portion 144 is formed with protrusions 146a and 146b.

As shown in FIGS. 10 and 11(b), the lower support member 151 includes a body portion 152, a lower support portion 153, a shaft portion 154, a lower base portion 155, and an engaging portion 156. there is

The body portion 152 has two elongated holes 152a formed in the central portion thereof in the vertical direction. The two elongated hole portions 152a are slidably fitted to the support portions 119a and 119b of the holder case 110. As shown in FIG. Thereby, the lower support member 151 is supported so as to be vertically movable with respect to the holder case 110 .

Further, the main body portion 152 is formed with an elongated cam groove 152b corresponding to the projections 136a and 136b of the holder case 110. As shown in FIG. Similarly, the body portion 152 is formed with an elongated cam groove 152c corresponding to the projections 146a and 146b of the holder case 110. As shown in FIG. 10 and 11(b), when the lower support member 151 moves upward H with respect to the holder case 110, the right support member 131 moves in the direction L1 toward the central axis CL. , the left support member 141 moves in the direction R1 toward the central axis CL.

10, the lower support member 151 is given a biasing force f2 in the upward direction H from the holder case 110 by a biasing spring 170. As shown in FIG. As a result, the right support member 131 is biased in the direction L1 toward the center axis CL via the cam groove 152b, and the left support member 141 is biased in the direction R1 toward the center axis CL via the cam groove 152c. be.

An upper portion of the lower support portion 153 serves as a contact surface 153a with which the lower end portion 202 of the electronic device 200 contacts.

The shaft portion 154 of the lower support member 151 is loosely fitted into the hole portion 121 of the upper flange portion 120 of the holder case 110 to support the vertical movement of the lower support member 151 and also to support the vertical movement of the lower support member 151. It will stop.

A locking portion 156 is formed on the lower base portion 155 . This locking portion 156 is locked by a locking member 190 . As in the second embodiment, when the engaging portion 156 is pushed into the locking member 190, the lower support member 151 is locked, and when pushed again, the locking mechanism is released and unlocked. .

As shown in FIG. 10, the biasing spring 170 is attached to the attachment portion 122 provided below the holder case 110 . A lock member 190 is also attached to the attachment portion 122 . As a result, as described above, the lower support member 151 is given the biasing force f2 in the upward direction H, and can be locked and unlocked in the vertical direction by the lock member 190 .

(Operation of wireless power supply device 100 according to the third embodiment)
As shown in FIGS. 10 and 11(b), the lower support member 151, the right support member 131, and the left support member 141 are interlocked via cam grooves 152b and 152c, which are cam mechanisms. Therefore, when the right end portion 211 and the left end portion 212 of the electronic device 200 are at a predetermined position X(-X) from the central axis CL, the lower support member 151 interlocks with the right support member 131 and the left support member 141. Then, it becomes the position Z in the predetermined height direction. If the predetermined position X and the predetermined position Z in the height direction are configured to have a relationship based on the regression line RL1 shown in FIG. The position can be adjusted, and power can be supplied to the electronic device 200 with a simple configuration. It should be noted that this feeding position is approximately the feeding coil center G regardless of the type of the electronic device 200 .

FIG. 12(a) is a cross-sectional view taken along line GG of FIG. 11(a) showing a state in which a small-shaped electronic device 200a is attached to the wireless power supply device according to the third embodiment of the present invention. 12(b) is a cross-sectional view taken along line GG of FIG. 11(a), showing a state in which the electronic device 200b having a large shape is attached.

As shown in FIG. 12( a ), a small electronic device 200 a is attached to the wireless power feeder 100 . The wireless power supply device 100 according to the third embodiment has a lock mechanism as in the second embodiment. is in contact with the contact surface 153a of the lower support portion 153 and is pushed downward. Thereby, the locked state by the lock member 190 is released.

The lower support member 151 is urged by the urging spring 170 in the upward direction H from the holder case 110 with an urging force f2. It is biased in directions L1, R1 toward CL.

As shown in FIG. 12A, the right end portion 211 and the left end portion 212 of the electronic device 200 abut on the inclined surface 132a of the right support member 131 and the inclined surface 142a of the left support member 141, respectively. In this contact state, the X-direction position X1 of the right support member 131 is determined by the width-direction dimension of the electronic device 200 .

Since the lower support member 151, the right support member 131, and the left support member 141 move together by the cam mechanism, once the position X1 in the X direction is determined, the distance Z1 from the feeding coil center G to the lower end of the electronic device is also unique. Determined. Since X1 and Z1 satisfy the relationship based on the regression line RL1 shown in FIG. 3, the center of the electronic device can be made to coincide with or close to the feeding coil center G, and power can be efficiently supplied to the electronic device. .

Also, as shown in FIG. 12(b), when an electronic device 200b having a large shape is attached, the position X2 of the right support member 131 in the X direction and the distance Z2 from the feeding coil center G to the lower end of the electronic device are uniquely determined. Since X2 and Z2 also satisfy the relationship based on the regression line RL1 shown in FIG. 3, the center of the electronic device can be made to coincide with or close to the feeding coil center G, and power can be efficiently supplied to the electronic device. .

As described above, in the wireless power supply device according to the present embodiment, regardless of the size (width and height) of the electronic device 200 such as a smartphone, the center of the electronic device can be aligned with or brought close to the feeding coil center G. Therefore, it is possible to efficiently supply power to the electronic device 200 .

Also, as in the second embodiment, when the electronic device 200 is finished being supplied with power and charged, the user pushes down the upper end 201 of the electronic device 200, for example. The lower end portion 202 of the electronic device 200 pushes and moves the lower support member 151 downward, and the lower support member 151 is locked by the lock member 190 . As a result, the inclined surface 132a of the right support member 131 and the inclined surface 142a of the left support member 141 are separated from the right end portion 211 and the left end portion 212 of the electronic device 200, respectively. The user can take out the electronic device 200 from the wireless power supply device 1 by, for example, grabbing the upper portion of the electronic device 200 and pulling it upward.

(Effect of the third embodiment)
The wireless power supply device 1 according to the third embodiment has the following effects in addition to the effects of the first and second embodiments.

A wireless power supply device 100 according to the third embodiment is a three-piece type that supports an electronic device 200 on the left, right, and bottom sides with a right support member 131, a left support member 141, and a lower support member 151. It is considered to be the configuration of As a result, the lower support member 151, the right support member 131, and the left support member 141 move in conjunction with each other, so that the mechanical operation is smooth when the electronic device 200 is attached or removed, and the mechanism is excellent in usability. can be assumed.

[Fourth Embodiment]
FIG. 13 is a front view of a wireless power supply device according to a fourth embodiment of the present invention. A wireless power supply device 400 according to the fourth embodiment includes a right support member having a right end contact portion and a lower end contact portion, a left end contact portion and a lower end contact portion, and The right support member or the left support member is slidably supported by the holder case with an urging force. This embodiment will be described as having only the right support member 431 as shown in FIG. Note that description of the same configuration as in the first embodiment is omitted.

As shown in FIG. 13, a wireless power supply device 400 according to the fourth embodiment has a right support member 431 having a right end contact portion 432 and a lower end contact portion 433. The right support member 431 It has a one-piece type configuration that is slidably supported by the holder case 410 with force.

As shown in FIG. 13 , the right support member 431 has a plate-like shape that is slidable while in contact with the front wall portion 413 of the holder case 410 . The holder case 410 is formed with elongated holes 418a and 418b. A projecting portion 435 of the right support member 431 is slidably fitted into the elongated holes 418a and 418b, and the right support member 431 is supported so as to be slidable in the S3 and S4 directions.

In the right support member 431, as shown in FIG. is stopped. A long hole 419 is formed in the holder case 410 so that the protrusion 436 can move. Since the urging spring 70 is attached in an extended state, the right support member 431 is urged in the S3 direction shown in FIG. 13 in the initial state.

As shown in FIG. 13 , the upper surface of the lower end contact portion 433 of the right support member 431 serves as a contact surface 433 a that contacts the lower end portion 202 of the electronic device 200 . The electronic device 200 is inserted into the interior 411 of the holder case 410 from above. The electronic device 200 is inserted while the left end portion 212 is in contact with the reference wall 412 of the holder case 410 and the right end portion 211 of the electronic device 200 is pushing the contact surface 432a. As a result, the right support member 431 moves downward while sliding in the S4 direction. When the lower end 202 of the electronic device 200 comes into contact with the contact surface 433a, the electronic device 200 is set at the predetermined power feeding position.

FIG. 14 shows, in the wireless power supply device according to the fourth embodiment of the present invention, the horizontal axis represents the distance X from the left end portion to the right contact portion of various electronic devices, and the distance from the feeding coil center G to the lower end of the electronic device. is a graph plotting the distance Z on the vertical axis, showing a regression line obtained from each plot by the method of least squares. In FIG. 14, iPhone 8, iPhone 8 plus, Phone X, iPhone Xs, iPhone Xs Max, iPhone XR, Galaxy S6, Galaxy S7, Galaxy S8, Galaxy S8 plus, Galaxy S9, Galaxy S9 plus, Galaxy Note 9, Galaxy S10 plus, Galaxy S10, V30 plus, XPERIAXZ2, XPERIAXZ3, AQUOS R3, TORQUE G04, HUAWEI P20, Pixel 3, Pixel 3a, Pixel 3 XL, (In the above, iPhone, Galaxy, XPERIA, AQUOS, TORQUE, HUAWEI, Pixel (registered trademark), the distance X from the left end portion to the right contact portion of 24 electronic devices is plotted on the horizontal axis, and the distance Z from the feed coil center G to the bottom end of the electronic device is plotted on the vertical axis.

A regression line RL2 was obtained from each plot in FIG. 14 by the method of least squares, and the line RL2 is shown in the figure. This straight line RL2 is a right downward straight line, and represents that the distance X from the left end portion of the electronic device to the right contact portion and the distance Z from the feeding coil center G to the lower end of the electronic device show a constant proportional relationship. ing.

For this reason, in the right support member 431, when the right end contact portion 432 is at a predetermined X position from the left end portion 212 of the electronic device, the lower end contact portion 433 is positioned at a predetermined Z position in the height direction. With this configuration, the center of the electronic device can be made to coincide with or be close to the center G of the feed coil.

Each plot in FIG. 14 has a slight variation from the regression line RL2 by the method of least squares, but the right support member 431 has the X position of the right end contact portion 432 and the Z position of the lower end contact portion 433 shown above. If the relationship is based on the straight line RL2, the power feeding position can be adjusted based on the width and height of the electronic device such as a smart phone, and power can be fed to the electronic device with a simple configuration. It should be noted that this feeding position is approximately the feeding coil center G regardless of the type of the electronic device 200 . Specifically, according to the arctangent of the slope of the regression line RL2 (Atan (0.7521)=38.9°), as shown in FIG. , can be aligned with the coil regardless of the size of the electronic device. An example is 38.9°, but considering the size of the smartphone and the coil, similar effects can be obtained if the angle is in the range of 35° to 45°.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and various modifications can be made without departing from the scope of the invention. Moreover, the above embodiments do not limit the invention according to the scope of claims. Also, it should be noted that not all combinations of features described in the embodiments are essential to the means for solving the problems of the invention.

REFERENCE SIGNS LIST 1 wireless power feeder 10 holder case 11 inside 12 rear wall 13 front wall 14 right wall 15, 17 opening 16 left wall 18 bottom 18a , 18b... support part 19a, 19b... support part 30... support mechanism 31... right support member 31a... right side part 32... right end contact part 32a... inclined surface 32b... upper inclined surface 33... lower end contact contact portion 33a contact surface 34 slide portion 35a, 35b long hole portion 36 rack gear portion 41 left support member 41a left side portion 42 left end contact portion 42a inclined surface 42b Upper inclined surface 43 Lower end contact portion 43a Contact surface 44 Slide portion 45a, 45b Elongated hole portion 46 Rack gear portion 50 Feeder 52 Feed coil 60 Pinion gear 61 Rotational support shaft 70 Biasing spring 70a, 70b End 80 Damper member 81 Damper gear 82a, 82b Mounting portion 85 Locking portion 90 Locking member 91 Locking member 100 Wireless power supply Apparatus 110... Holder case 111... Inside 112... Rear wall 113... Front wall 114... Right wall 115, 117... Opening 116... Left wall 118... Bottom 118a, 118b... Support Portion 119a, 119b Support portion 120 Upper flange portion 121 Hole portion 122 Mounting portion 130 Support mechanism 131 Right support member 131a Right portion 132 Right end contact portion 132a Inclined surface , 134... Slide part 135... Elongated hole 136a, 136b... Protrusion 141... Left support member 141a... Left side part 142... Left end contact part 142a... Inclined surface 144... Slide part 145... Elongated hole, 146a, 146b... Protrusions 151... Lower support member 152... Body part 152a... Elongated hole part 152b, 152c... Cam groove 153... Lower support part 153a... Contact surface 154... Shaft part 155 Lower base 156 Locking portion 170 Biasing spring 190 Lock members 200, 200a, 200b Electronic device 201 Upper end 202 Lower end 211 Right end 212 Left Ends 230 Front 240 Rear 300 Vehicle 310 Center console 400 Wireless power feeder 410 Holder case Reference wall 412 413 Front wall 418a, 418b, 419 Elongated hole 431 Right support member 432 Right end contact portion 432a Contact surface 433 Lower end contact portion 433a Contact surface 435 Protrusion 436 Protrusion CL Central axis G Feed coil center RL1, RL2: Regression line f1, f2: Biasing force

Claims (9)

The front and back of the electronic device, the right edge and left edge that are the sides that connect the front and the back, and the upper and lower edges that are the sides that connect the front and the back a holder case for accommodating therein the electronic device to be formed in a state in which it is inserted;
A side end contact portion having a right end contact portion and a left end contact portion contacting the right end portion and the left end portion of the electronic device, and a lower end contact portion contacting the lower end portion of the electronic device. and at least one of the side end contact portions is in contact with the right end portion or the left end portion with a biasing force toward the other end side of the right end portion or the left end portion. a support mechanism that supports the electronic device;
a power feeder that feeds power from the front side or the back side of the electronic device in a contactless manner,
In the support mechanism, when the side end contact portion is at a predetermined position, the lower end contact portion is positioned at a predetermined height direction , and the electronic device and the power feeder supply power and charge conditions. A wireless power supply device that supports the electronic device so as to have a positional relationship suitable for the wireless power supply. When the electronic device is not inserted into the side end contact portion, the distance between the right end contact portion and the left end contact portion is a first distance smaller than the width dimension of the electronic device. The wireless power supply device according to claim 1, wherein The support mechanism has an unlocked state in which the biasing force is generated and a locked state in which the biasing force is not generated. 2. The wireless power supply device according to claim 1, wherein the distance from the contact portion is a second distance larger than the width dimension of the electronic device. The support mechanism includes a right support member including the right contact portion and the lower contact portion, and a left support member including the left contact portion and the lower contact portion. The wireless power supply device according to any one of claims 1 to 3, wherein the right support member and the left support member are slidably supported by the holder case with the biasing force. The wireless power supply device according to any one of claims 1 to 4, wherein the predetermined position is a position from the side end contact portion to a central axis between the right end portion and the left end portion. . The support mechanism includes a right support member having the right end contact portion, a left support member having the left end contact portion, and a lower support member having the lower end contact portion,
When the right end abutment portion and the left end abutment portion are at predetermined positions from the center axis between the right end portion and the left end portion , the lower support member is positioned between the right support member and the left support member. 2. The wireless power supply device according to claim 1, which is positioned in a predetermined height direction in conjunction with the . The right support member, the left support member, and the lower support member are each slidably supported by the holder case, and the lower support member interlocks with the right support member and the left support member via a cam mechanism. The wireless power supply device according to claim 6, wherein The support mechanism includes either a right support member including the right end contact portion and the lower end contact portion, or a left support member including the left end contact portion and the lower end contact portion. 2. The wireless power supply device according to claim 1, wherein said right support member or said left support member is slidably supported by said holder case with said biasing force. 9. The wireless power supply device according to claim 8, wherein said predetermined position is a position from said right end portion to said left end contact portion or from said left end portion to said right end contact portion.

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