WO2020129848A1 - Charging device, control device, and apparatus system - Google Patents

Abstract

The present invention suppresses electrostatic breakdown at an electronic apparatus. A charging device that includes: a charging part at which a power supply electrode (58) that is to supply current to a battery-driven apparatus is disposed and on which the battery-driven apparatus is to be placed; and a discharge-accepting electrode (61) that is dispoed at the charging part and is connected to wiring that supplies a prescribed potential.

Description

Charging device, control device and equipment system

The present invention relates to a charging device, a control device, and a device system.

It is known that electronic devices are affected by static electricity that charges the human body. Therefore, in a general electronic device, the influence of static electricity is prevented by, for example, sufficiently insulating between an electronic circuit and a charged object.

　In a very small device, due to the shape and design, the number of parts that can be stored as a countermeasure against static electricity is limited, and countermeasures against static electricity become more difficult.

The present invention has been made in view of the above problems, and an object thereof is to provide a technique capable of more effectively taking measures against static electricity in electronic devices.

In order to solve the above-mentioned problems, a charging device according to the present invention is configured such that a power supply electrode for supplying a current to a battery-powered device is arranged, the charging unit to which the battery-powered device is attached, and a grounded wiring are connected, And a discharge target electrode provided in the charging section.

The device system according to the present invention is connected to a battery-driven device, a power supply electrode for supplying a current to the battery-driven device, a charging unit to which the battery-driven device is attached, and a grounded wiring, and the charging. And a charging device including an electrode to be discharged that is disposed in the portion.

A control device according to the present invention includes a processor and a memory, a cartridge connector into which a cartridge is inserted and removed, a display, and a power supply electrode that supplies a current to a first battery-powered device. A first mating portion to be fitted, a first discharged electrode connected to the grounded wiring and arranged in the first mating portion, and a power supply electrode for supplying a current to the second battery-operated device. And a second mating portion into which the second battery-operated device is fitted, and a second discharged electrode connected to the grounded wiring and arranged in the second mating portion. Including.

According to the present invention, it is possible to more effectively take measures against static electricity in electronic devices.

In one aspect of the present invention, the charging unit has a side wall arranged to face the attached battery-driven device, and a surface of the side wall is closer to the attached battery-driven device than the discharged electrode. May be located at.

In one aspect of the present invention, the charging unit may have a recess having a shape corresponding to the battery-powered device, and the recess may include the side wall.

In an aspect of the present invention, the battery-powered device may include a side surface formed of two or more members that are fitted together, and the side surface and the side wall may face each other.

In an aspect of the present invention, the side wall may be composed of a first member and a second member, and the electrode to be discharged may be arranged between the first member and the second member.

In an aspect of the present invention, a gap may be formed between the first member and the second member, and the electrode to be discharged may be arranged in the gap.

In an aspect of the present invention, the gap may extend to the side wall, and the electrode to be discharged may be exposed from the gap.

In one form of the present invention, the distance between the first member and the second member on the surface of the side wall is the distance between the first member and the second member at positions sandwiching the electrode to be discharged. May be smaller.

In one aspect of the present invention, the electrode to be discharged may be a metal plate having an opening surrounding the mating portion.

In one aspect of the present invention, the metal plate may have a step around the opening.

In one aspect of the present invention, the metal plate includes an electrostatic protection portion provided around the opening, a terminal portion connected to the wiring, and a connection portion connecting the electrostatic protection portion and the terminal portion. Have
The connection part may become thinner as it goes away from the electrostatic protection part.

It is a figure which shows an example of the toy system concerning embodiment of this invention. It is an exploded perspective view of a device control device. It is a top view of a device control device and a trolley. FIG. 4 is a cross-sectional view taken along the line IV-IV of the device control device and the trolley shown in FIG. 3. FIG. 5 is a cross-sectional view taken along the line VV of the device control device and the trolley shown in FIG. 3. It is a partially expanded view of the metal plate shown in FIG. It is a perspective view of a metal plate.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Among the appearing constituent elements, those having the same function are denoted by the same reference numerals, and the description thereof will be omitted.

FIG. 1 is a diagram showing an example of a toy system according to an embodiment of the present invention. The toy system according to the present invention includes a device control device 10, carriages 20a and 20b, a controller 17, and a cartridge 18.

The carts 20a and 20b are types of battery-powered devices, and are mobile devices that can be self-propelled. Both have the same function. Hereinafter, one of the carriages 20a and 20b will be referred to as a carriage 20 unless it is necessary to make a distinction. The dolly 20 includes a battery, a position detection camera for photographing the lower part, and wheels. The trolley|bogie 20 moves by rotating a wheel according to the position detected by the camera. The device control device 10 controls the carriage 20 wirelessly. The controller 17 is an input device that acquires an operation by a user, and is connected to the device control device 10 by a cable.

The device control device 10 has two recesses 32 in which the cart 20 is placed for charging. The two recesses 32 are configured so that the carriage 20 can be fitted therein. Further, the device control device 10 is connected to the power cable 19. The power cable 19 is connected to an AC adapter (not shown). Further, the device control device 10 has a structure for inserting and removing the cartridge 18 in which software and the like are stored.

FIG. 2 is an exploded perspective view of the device control device 10. The device control device 10 includes a case including an upper case member 51, a lower case member 52, and leg portions 53. The upper case member 51, the lower case member 52, and the leg portion 53 are fixed to each other by a fixing pin 54. The device control apparatus 10 further includes a cartridge connector 34, a display 36, a main board 56, a power supply connector 55, a carriage receiving portion 57, a power supply terminal 58, a metal plate 61, and conductive pins 62. These are arranged in the case. The cartridge connector 34 has a structure in which the cartridge 18 is inserted and removed. The upper case member 51 has two rectangular openings 86 with rounded corners.

The main board 56 is fixed in the case, and the power connector 55 is connected to the wiring on the main board 56. The power cable 19 is connected to the power connector 55, and the power cable 19 is connected to an AC adapter (not shown). The AC adapter supplies a power supply potential and a ground potential to the main board 56 via the power supply connector 55. On the main board 56, a cartridge connector 34, a display 36, a power supply terminal 58, a processor and a memory (not shown) are arranged.

The carriage receiving portion 57 has a recess corresponding to the shape of the lower portion of the carriage 20, and the recess has an inner peripheral surface and a bottom surface connected to the inner peripheral surface. A through hole is provided in the bottom surface, and the power supply terminal 58 passes through the through hole and projects from the bottom surface of the carriage receiving portion 57. The metal plate 61 and the upper case member 51 are arranged on the carriage receiving portion 57. The opening 86 of the upper case member 51 and the recess of the carriage receiving portion 57 are arranged so as to overlap each other in a plan view. The metal plate 61 is sandwiched between the carriage receiving portion 57 and the upper case member 51.

The metal plate 61 has a substantially rectangular opening 65. The opening 65 is arranged so as to overlap the opening 86 of the upper case member 51 and the recess of the carriage receiving portion 57 in a plan view. One end of the metal plate 61 is in contact with the conductive pin 62, and the conductive pin 62 is in contact with the wiring on the main board 56. The metal plate 61 is connected to the power supply connector 55 through the wiring and is grounded. The metal plate 61 functions as a kind of lightning rod.

Each of the recesses 32 includes an opening 86 provided in the upper case member 51, an inner peripheral surface and a bottom surface of the carriage receiving portion 57, and a power supply terminal 58. The carriage receiving portion 57 and the power supply terminal 58 provided in either of the recesses 32 have the same shape. Further, a metal plate 61 is arranged so as to surround the recess 32.

The configuration of the device control device 10 will be further described. 3 is a plan view of the device control device 10 and the dolly 20, FIG. 4 is a cross-sectional view taken along the line IV-IV of the device control device 10 and the dolly 20 shown in FIG. 3, and FIG. 5 is a device shown in FIG. 5 is a cross-sectional view taken along the line VV of the control device 10 and the carriage 20. FIG. The trolley|bogie 20 is fitted in the recessed part 32 on the left side of FIG. Therefore, the cross section of the trolley|bogie 20 is described in FIG.

4 and 5 show not only the cross-section but also the surface of the member that is beyond the cross-section from the viewpoint and does not obstruct the view. Therefore, FIG. 4 shows the shape of the upper portion of the trolley 20 as viewed from the side. It should be noted that some of the members are omitted in FIGS. 4 and 5 for ease of explanation.

As shown in FIG. 5, the carriage 20 includes a circuit board 72, a power receiving terminal 71 connected to the circuit board 72, a gear 73, a battery 74, a first cover member 76, and a second cover member. 77 and a third cover material 78. The dolly 20 also includes a tire (not shown), a motor, and a microcontroller. The first cover material 76, the second cover material 77, and the third cover material 78 form the exterior of the truck 20. When the dolly 20 is fitted, the power receiving terminal 71 included in the dolly 20 is inserted into the power supply terminal 58. In this case, current is supplied to the battery 74 via the power receiving terminal 71, and the battery 74 is charged by the current. The gear 73 constitutes a transmission mechanism for transmitting the output of the motor to the tire.

In FIGS. 4 and 5, the cart receiving portion 57, the power supply terminal 58, and the metal plate 61 have the same shape. As shown in FIG. 5, when the truck 20 is fitted into the recess 32, the metal plate 61 surrounds the truck 20 laterally.

FIG. 6 is a partially enlarged view of the metal plate 61 shown in FIG. The recess 32 has a side wall 81 and a bottom surface, and the side wall 81 is constituted by the inner peripheral surface of the carriage receiving portion 57 and the inner peripheral surface of the opening 86. Further, the metal plate 61 is provided so as to surround the side wall 81 from the side. In other words, the side wall 81 is between the trolley 20 to be fitted and the metal plate 61. Further, on the outside of the side wall 81, there is a gap 59 between the upper case member 51 and the carriage receiving portion 57. The metal plate 61 is arranged in the gap 59. The gap 59 extends to the side wall 81, and the side wall 81 is opened by the gap 59. The metal plate 61 is exposed from the upper case member 51 and the lower case member 52 by the gap 59.

The metal plate 61 is arranged above the recess 32 (for example, above the center in the vertical direction). Specifically, the metal plate 61 is connected from the opening of the recess 32, and is adjacent to the end of the guide portion 89 that guides a finger at the time of removal.

The upper case member 51 has a protruding portion 82 protruding downward at the end of the side wall 81 on the side of the gap 59. The protruding portion 82 faces the upper end surface of the concave portion of the carriage receiving portion 57. The end of the metal plate 61 on the side of the opening 65 is located on the upper end surface of the carriage receiving portion 57. The gap 59 is narrowed near the side wall 81 by the protrusion 82. In other words, the distance between the upper case member 51 and the lower case member 52 on the side wall 81 is the distance between the upper case member 51 and the lower case member 52 at the position sandwiching the metal plate 61 (the region overlapping the metal plate 61 in plan view). Less than distance. This makes it difficult to visually recognize the metal plate 61 and the gap 59.

The side surface of the trolley 20 is composed of a second cover material 77 and a third cover material 78 that are joined together. Further, a minute gap 79 exists between the second cover material 77 and the third cover material 78, and the gap 79 also appears on the side surface of the carriage 20. Then, the side surface of the carriage 20 and the side wall 81 face each other. Here, the distance from the location closest to the side surface of the carriage 20 to the circuit board 72 in the gap 79 of the carriage 20 is larger than the distance from the location to the metal plate 61.

FIG. 7 is a perspective view of the metal plate 61 viewed from a direction different from that in FIG. The metal plate 61 includes an electrostatic protection part 66, a terminal part 67, and an intermediate part 68. The electrostatic protection portion 66 is a portion that surrounds the opening 65 and expands in the lateral direction, the terminal portion 67 is a portion that is in contact with the conductive pin 62 on the main board 56, and the intermediate portion 68 includes the electrostatic protection portion 66 and the terminal portion 67. It is the part that connects.

The electrostatic protection unit 66 has a step between the end on the opening 65 side and the peripheral side of the electrostatic protection unit 66. This step surrounds the opening 65 in a plan view. Thereby, as shown in FIGS. 4 to 6, the cross section of the electrostatic protection portion 66 has an S-shaped portion. Due to this step, the electrostatic protection portion 66 is less likely to be deformed, and the metal plate 61 can be arranged with higher accuracy.

The intermediate portion 68 extends downward from a part of the edge on the peripheral side of the electrostatic protection portion 66, and the boundary between the intermediate portion 68 and the electrostatic protection portion 66 is bent. The width of the intermediate portion 68 becomes narrower as the distance from the electrostatic protection portion 66 increases. The tip of the intermediate portion 68 is connected to the terminal portion 67. The terminal portion 67 includes a first region provided with a hole through which the fixing pin 54 passes, a second region connected to the conductive pin 62, a third region connecting them, and an additional region. The first region is a rectangular region in which a through hole for penetrating the fixing pin 54 is provided, the intermediate portion 68 is connected to one side of the rectangular region, and the third region is connected to the side adjacent to the one side. , And a rectangular additional area is connected to each of the other two sides. The boundary between the first region and the intermediate portion 68, the boundary between the first region and the third region, and the boundary between the first region and the additional region are bent. The second region is bent so as to interfere with the conductive pin 62 and is connected to the conductive pin 62 by an elastic force. Here, the metal plate 61 may be grounded by another method. For example, the metal plate 61 may be grounded by fixing the terminal portion 67 and the grounded wiring on the main board 56 to each other with a metal screw.

As described above, the distance from the end on the side surface side of the clearance 79 of the carriage 20 fitted in the device control device 10 to the circuit board 72 is greater than the distance from the end on the side surface side of the clearance 79 to the metal plate 61. large. Then, when the carriage 20 is fitted into the recess 32 of the device control device 10, the static electricity is discharged to the metal plate 61 before being discharged toward the circuit board 72. A route through which current can flow due to the discharge of static electricity on the carriage 20 is a gap 79 on the exterior of the carriage 20. However, since the static electricity is discharged to the metal plate 61 before the static electricity is discharged through the gap 79, the carriage 20 is protected from the influence of the static electricity discharge during charging. When the dolly 20 is charged, the potential supplied from the power supply terminal 58 causes a large potential difference between the potential of the circuit board 72 and an object in which static electricity has accumulated, and thus discharge is likely to occur. On the other hand, there is a low possibility that static electricity of the carriage 20 will be discharged except when charging. This is because when the dolly 20 is separated from the device control device 10, the circuit board 72 is not supplied with an electric potential from the outside, so that the electric potential difference between the circuit board 72 and an object where static electricity is accumulated is likely to be small.

As described above, even if there is the dolly 20 on which the battery 74 is mounted and it is difficult to take measures against static electricity by itself, by providing the device control device 10 on the power supply side with a conductive member that receives static electricity discharge, It is possible to prevent the influence of static electricity on the vehicle 20 and to significantly reduce the possibility itself of being affected by the static electricity in normal use of the carriage 20.

Up to now, an example in which the present invention is applied to a toy system has been described, but the present invention can also be applied to electronic devices other than toys and devices for charging them. Instead of the dolly 20, other types of battery-powered devices may be used. For example, the present invention may be applied to a mobile device such as a smartphone instead of the carriage 20.

Also, the charging device that supplies current for charging like the device control device 10 does not necessarily have to have the configuration described above. For example, instead of the metal plate 61, a conductive sheet or an annular metal wire may be used.

The metal plate 61 having the opening 65 may be arranged on the outer peripheral edge of the upper end of the recess 32, and the opening 65 may surround the recess 32 in a plan view. Since the metal plate 61 is present on the upper side of the case, it is possible to more effectively prevent the influence of static electricity, although there are restrictions on decoration. Further, instead of the metal plate 61, a grounded loop-shaped metal wire may be arranged at the upper end of the recess 32 or the outer peripheral edge thereof.

Further, the conductive member arranged around the recess 32 and functioning as a so-called lightning rod does not have to have an opening or loop structure. For example, in order to suppress the influence of static electricity, a plurality of grounded electrodes may be arranged along the upper end of the side wall 81 at intervals smaller than a predetermined value. Each of the plurality of electrodes may extend along the side wall 81 in a plan view, or may be a metal wire extending vertically along the side wall 81.

The location (fitting portion) into which the battery-powered device is fitted does not necessarily have to be the recess 32. For example, the mating portion has a bottom surface and a side wall, but the side wall may not surround the device to be charged. It is also possible that one of the side surfaces of the battery-powered device is not provided with a gap, and the charging device has only a side wall that faces the side surface having no gap and on which the metal plate 61 is installed. Furthermore, the location where the battery-powered device is arranged for charging does not necessarily have to be the shape in which the battery-powered device is fitted. For example, the shape of the battery-powered device and the shape of the recess 32 may be different. Even in this case, by appropriately arranging the electrodes, such as the metal plate 61, which receive electrostatic discharge, it is possible to obtain the same effect as that of the above-described embodiments.

Claims (13)

A power supply electrode that supplies current to the battery-powered device is arranged, and a charging unit to which the battery-powered device is attached,
An electrode to be discharged, which is connected to a grounded wire and is arranged in the charging section,
Charging device including. The charging device according to claim 1,
The charging unit has a side wall arranged to face the attached battery-powered device,
The surface of the side wall is disposed closer to the attached battery-operated device than the electrode to be discharged,
Charging device. The charging device according to claim 2,
The charging section has a recess having a shape corresponding to the battery-powered device,
The recess includes the sidewall,
Charging device. The charging device according to claim 2 or 3,
The battery-powered device includes a side surface formed by two or more members that are fitted together.
The side surface and the side wall face each other,
Charging device. The charging device according to any one of claims 1 to 4,
The side wall includes a first member and a second member,
The electrode to be discharged is disposed between the first member and the second member,
Charging device. The charging device according to claim 5,
A gap is formed between the first member and the second member,
The electrode to be discharged is arranged in the gap,
Charging device. The charging device according to claim 6,
The gap extends to the side wall,
The electrode to be discharged is exposed from the gap,
Charging device. The charging device according to claim 7,
The distance between the first member and the second member on the surface of the side wall is smaller than the distance between the first member and the second member at positions sandwiching the electrode to be discharged,
Charging device. The charging device according to any one of claims 1 to 8,
The electrode to be discharged is a metal plate having an opening surrounding the mating portion,
Charging device. The charging device according to claim 9,
The metal plate has a step around the opening,
Charging device. The charging device according to claim 9 or 10,
The metal plate has an electrostatic protection part provided around the opening, a terminal part connected to the wiring, and a connection part connecting the electrostatic protection part and the terminal part,
The connection portion becomes thinner as it gets away from the electrostatic protection portion,
Charging device. Battery-powered equipment,
A charging section in which a power supply electrode for supplying an electric current to the battery-powered device is arranged and to which the battery-powered device is attached, and
An electrode to be discharged, which is connected to a grounded wire and is arranged in the charging section,
A charging device including
Equipment system including. A processor and memory,
Cartridge connector into and out of which the cartridge is inserted
Display,
A power supply electrode for supplying an electric current to the first battery-powered device is arranged, and a first mating part into which the first battery-powered device is fitted;
A first electrode to be discharged which is connected to a grounded wire and is arranged in the first mating portion;
A power supply electrode for supplying a current to the second battery-powered device is arranged, and a second mating part into which the second battery-powered device is fitted;
A second electrode to be discharged, which is connected to a grounded wire and is arranged in the second mating portion;
Including a control device.

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