Charging device

Abstract

To provide a charger capable of charging a radiation image photographing device placed in a general disposable bag.SOLUTION: A charger includes: a storage part 11 for storing a radiation image photographing device 2; and a power supply part 12 having a power supply coil 121 for supplying power to the radiation image photographing device 2. Induction current is made to flow in a power reception coil 221 by changing a magnetic field in the power reception coil 221 of a power reception part 22 of the radiation image photographing device 2 by the power reception coil 121, and power is wirelessly supplied to the radiation image photographing device 2.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a charging device. Place Regarding. [Background technology]

[0002] Portable radiographic imaging devices (FPDs) generally include a rechargeable battery. FPDs use the power of the rechargeable battery for image capture, data communication, and other purposes. Some rechargeable batteries are detachable from the FPD body. In this case, the rechargeable battery is charged by connecting it to a charging device. Another type of rechargeable battery is one in which the rechargeable battery is built into the FPD body. The FPD body has a power receiving terminal on its exterior that connects to the rechargeable battery. In this case, the rechargeable battery is charged by connecting the power receiving terminal to a power supply terminal that is connected to the charging device. When not in use, the FPD is stored in a storage device called a cradle. This cradle has a power supply terminal, so the FPD is charged when not in use. This ensures that the FPD has sufficient power the next time it is used. Furthermore, hospitals with wards sometimes use a mobile radiation imaging system (mobile cart system) that uses a mobile radiation irradiation device (mobile cart) and an FPD. The FPD housing of this mobile cart is equipped with a power supply terminal, so by connecting the FPD's power receiving terminal and power supply terminal when the FPD is housed in the FPD housing, it can be charged while the mobile cart is in motion.

[0003] When using a mobile radiography system, one FPD is usually reused to scan multiple patients. This raises the risk of bacteria and viruses being transmitted between patients, leading to hospital-acquired infections. For this reason, the FPD is placed in an infection prevention bag, which is replaced after each scan. Normally, to prevent contamination of the FPD body as much as possible, the used bag is removed after imaging, placed in a new bag, and then moved to the next imaging location. However, in emergency treatment rooms and the like, the FPD may be kept in the cradle with the bag still attached in case of emergency use. However, infection prevention bags are generally made of insulating resin, and once the FPD is placed in the bag, the power terminal is also covered, making it impossible to charge it from an external power source, which means that the FPD may run out of power during imaging. To solve the above problem, Patent Document 1 discloses a technique in which a relay terminal is provided on the storage bag, and charging can be performed while the FPD is placed in the storage bag. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2012-27015 Summary of the Invention [Problem to be solved by the invention]

[0005] The above-mentioned storage bag allows charging without contaminating the radiographic imaging device, but a dedicated storage bag is required, and inexpensive general-purpose plastic bags cannot be used. For hygiene reasons, disposable dedicated storage bags must be replaced every time, which is too costly, and this remains an issue.

[0006] An object of the present invention is to provide a charging device capable of charging a radiographic imaging device placed in a disposable general bag. Place The purpose is to provide. [Means for solving the problem]

[0007] In order to solve the above problem, the charging device according to claim 1 is A charging device that supplies power to a radiographic imaging device, a power supply unit that supplies power to the radiographic imaging device in a non-contact manner; a housing section that houses the radiographic imaging device; an attachment portion for the medical cart; Equipped with It is detachable from the medical cart, the power supply unit is provided in the housing unit, the housing unit includes a position restricting means for restricting the position of the radiographic image capturing device so that the power supply unit and the power receiving unit of the radiographic image capturing device face each other; The position restricting means is characterized by including a position restricting member protruding from a wall surface inside the storage portion. The charging device according to claim 2 is A charging device that supplies power to a radiographic imaging device, a power supply unit that supplies power to the radiographic imaging device in a non-contact manner; a housing section that houses the radiographic imaging device; a control unit that changes the correspondence between the radiation image capturing device and the console, the power supply unit is provided in the housing unit, the housing unit includes a position restricting means for restricting the position of the radiographic image capturing device so that the power supply unit and the power receiving unit of the radiographic image capturing device face each other; The position restricting means is characterized by including a position restricting member protruding from a wall surface inside the storage portion. [Effects of the Invention]

[0009] According to the present invention, a charging device capable of charging a radiographic imaging device placed in a disposable general bag is provided. Place Obtained. [Brief explanation of the drawings]

[0010] [Figure 1] FIG. 1 is a schematic diagram illustrating the configuration of a mobile radiation image capturing system. [Figure 2] FIG. 1 is a perspective view of a radiographic image capturing device. [Figure 3] 1 is a cross-sectional view illustrating a schematic configuration of a charging device according to a first embodiment. [Figure 4] FIG. 2 is a block diagram illustrating a control method for the charging device. [Figure 5] FIG. 10 is a cross-sectional view showing the relationship between two rails and a power supply unit in a second embodiment. [Figure 6] FIG. 10 is a cross-sectional view illustrating a schematic configuration of a charging device according to a third embodiment. [Figure 7] FIG. 10 is a cross-sectional view showing a first modified example in which a plurality of radiographic imaging devices are housed. [Figure 8] FIG. 10 is a cross-sectional view showing a second modification of the charging device provided with a position restriction means. DETAILED DESCRIPTION OF THE INVENTION

[0011] [First embodiment] A first embodiment of the present invention will be described below with reference to the drawings. However, although the embodiment described below has various limitations that are technically preferable for implementing the present invention, the technical scope of the present invention is not limited to the following embodiment and illustrated examples.

[0012] [Configuration of a mobile radiographic imaging system] As shown in FIG. 1, the mobile radiographic imaging system 100 includes a charging device 1, a radiographic imaging device 2, and a medical examination cart 3. The charging device 1 is configured to be able to accommodate the radiographic image capturing device 2. The medical examination cart 3 includes a vehicle body 31, a radiation irradiation device 32, and a console 33. The radiation irradiation device 32 is provided on the front side of the vehicle body 31. The console 33 is provided on the upper part of the vehicle body 31. The charging device 1 is detachably fixed to the rear side of the main body 31 of the medical examination cart 3. The charging device 1 may also be formed integrally with the main body 31 of the medical examination cart 3.

[0013] In the mobile radiographic imaging system 100 configured in this manner, by using the medical cart 3, radiologists and others can go directly to the hospital room of a patient who has difficulty moving and take radiographic images of the patient on the bed.

[0014] [Configuration of the radiation imaging device] Next, a specific configuration of the radiographic image capturing device 2 will be described. Figure 2 is a perspective view of the portable radiographic image capturing device 2. Here, the description will be given taking as an example a so-called indirect type radiographic imaging device that converts emitted radiation into electromagnetic waves of other wavelengths, such as visible light, to obtain electrical signals, but the present invention can also be applied to so-called direct type radiographic imaging devices that directly convert radiation into electrical signals using detection elements.

[0015] As shown in Fig. 2, the radiographic image capturing device 2 is configured by housing a scintillator 24 and a sensor panel 25 (also referred to as a TFT panel, etc.) in a housing 21. The radiographic image capturing device 2 also includes a rechargeable battery 23 in the housing 21. Note that Fig. 2 shows the radiographic image capturing device 2 in a state where the incident surface onto which radiation is irradiated faces the front side in the drawing. The housing 21 is a rectangular flat plate, and one side of the housing 21 is provided with a power switch 26, a selector switch 27, an indicator 28, a connector 29, etc., as shown in Fig. 2. As will be described later, the radiographic imaging device 2 can be powered wirelessly (contactlessly) by the charging device 1, but can also be powered normally using the connector 29.

[0016] 3, the radiographic imaging device 2 includes a power receiving unit 22 along one bottom surface inside a housing 21. The power receiving unit 22 has a power receiving coil 221, and the power receiving coil 221 is connected to a rechargeable battery 23 built into the housing 21 by wiring. The position of the power receiving unit 22 of the radiographic imaging device 2 corresponds to the position of the power supply unit 12 of the charging device 1, and the power receiving unit 22 and the power supply unit 12 face each other.

[0017] As shown in Fig. 3, the radiographic imaging device 2 is used in a disposable infection prevention bag 9. The infection prevention bag 9 is made of resin and is waterproof. The material of the infection prevention bag 9 is, for example, polyethylene or polyvinyl chloride. An inexpensive infection prevention bag 9 will suffice as long as it can prevent the adhesion of viruses, bacteria, dust, and dirt. Furthermore, it is desirable that an antibacterial agent be kneaded into the material that forms the surface of the radiographic image capturing device 2. Alternatively, the surface of the radiographic image capturing device 2 may be coated with an antibacterial agent. This can enhance the infection prevention effect.

[0018] [Charging device configuration] Next, a specific configuration of the charging device 1 of the present invention will be described with reference to FIGS. The charging device 1 includes a storage section 11 that stores the radiographic imaging device 2, and a power supply section 12 that is provided along the front wall of the storage section 11 and supplies power to the radiographic imaging device 2. The storage section 11 opens upward and has a volume larger than that of a standard radiographic imaging device. The reason why the volume of the accommodation unit 11 is made larger than that of a standard radiographic imaging device is that it is assumed that it will accommodate a plurality of types of radiographic imaging devices. The charging device 1 also has a control unit 13 and a communication unit 14. The control unit 13 is connected to the power supply unit 12 and the communication unit 14 by wire or wirelessly. The charging device 1 also has an attachment unit 16 that is detachable from the body 31 of the medical cart 3.

[0019] The accommodation unit 11 has a rectangular parallelepiped shape with an internal space and has an opening at the top. The loading operation of the radiographic imaging device 2 is performed by inserting the radiographic imaging device 2 into the accommodation unit 11 from above through this opening. In other words, when the radiographic imaging device 2 is inserted from above from the state shown in FIG. 1, it becomes the accommodation state. This allows the charging device 1 to charge the radiographic imaging device 2.

[0020] The power supply unit 12 supplies power wirelessly (contactlessly) to the radiographic image capturing device 2 housed in the housing unit 11. 3, power supply unit 12 is provided on the front wall surface of housing unit 11 and protrudes from the front wall surface. If the distance between power supply unit 12 and power receiving unit 22 of radiographic imaging device 2 is large, power supply efficiency decreases, so by providing power supply unit 12 to protrude even slightly, power supply efficiency can be improved.

[0021] The power supply unit 12 has a power supply coil 121 at a position corresponding to the power receiving unit 22 of the radiographic imaging device 2 when the radiographic imaging device 2 is inserted. The power supply unit 12 is connected to a power source (not shown) (for example, a built-in battery of the medical cart 3, etc.).

[0022] Furthermore, power supply unit 12 is covered with protective cover 122 (protective member). Protective cover 122 is non-conductive, which protects power supply unit 12 from dust and dirt and prevents electricity from jumping into power supply unit 12 even if infection prevention bag 9 is electrically charged. Furthermore, protective cover 122 is made of a waterproof material, giving power supply unit 12 a watertight structure. This prevents moisture from entering power supply unit 12 even if liquid gets into housing unit 11. Because protective cover 122 has a waterproof structure, disinfectant can be used when disinfecting or cleaning housing unit 11. The material of the protective cover 122 is preferably rubber or plastic.

[0023] The method of wirelessly feeding power from the power feeding unit 12 to the power receiving unit 22 is, for example, a magnetic field coupling (electromagnetic induction) method. When power is supplied to the radiographic imaging device 2, an AC current is passed through the power supply coil 121. This causes the power supply coil 121 to generate a changing magnetic field. Because the power supply coil 121 and the power receiving coil 221 of the radiographic imaging device 2 are directly opposite each other at a short distance, this changing magnetic field causes an induced current to flow in the power receiving coil 221. The generated induced current is converted into a DC current by an AC adapter (not shown), and can be used to charge the rechargeable battery 23. In this way, the charging device 1 feeds power wirelessly (contactless) from the power feeding unit 12 to the power receiving unit 22 of the radiographic image capturing device 2 without going through a connector 29 or the like.

[0024] The control unit 13 controls the operation of the charging device 1 in response to an operation by a user or the like. The communication unit 14 is connected to a network via wire or wirelessly, and communicates with an external terminal (for example, a user's PC, etc.).

[0025] The mounting section 16 is provided on the front side surface of the storage section 11, and engages with an engaging hook 311 provided on the rear wall of the main body 31 of the medical cart 3, thereby removably fixing the charging device 1 to the medical cart 3. In this way, when the radiographic imaging device 2 is not in use, the charging device 1 can be removed to reduce the weight of the entire mobile radiographic imaging system 100. Furthermore, because the charging device 1 is fixed to the medical cart 3 using a hook structure, there is no need to bother with installation and removal, making the work easy.

[0026] The accommodation unit 11 is provided with a detection means for detecting the insertion of the radiographic imaging device 2, and charging starts when the detection means detects the insertion of the radiographic imaging device 2. The detection means may be a limit switch that physically detects when a lever-like member is pressed by the radiographic imaging device 2, or a photoelectric sensor that projects visible light, infrared light, or the like and detects when it is interrupted. As another detection means, the power supply unit 12 is provided with an IC chip reader 123, and an IC chip (not shown) is embedded in the power receiving unit 22 of the radiographic imaging device 2. This allows the control unit 13 to detect that the radiographic imaging device 2 has been inserted into the charging device 1. Furthermore, each of the plurality of radiographic imaging devices 2 is provided with a different IC chip, so that the radiographic imaging device 2 inserted into the charging device 1 can be identified.

[0027] Specifically, the control unit 13 determines whether the radiographic imaging device 2 is currently inserted into the charging device 1 or is in use, based on the information in the IC chip read by the IC chip reader 123. Furthermore, the control unit 13 can also ascertain charging information for each radiographic imaging device 2, such as when it was last charged and whether the last charge was sufficient. The control unit 13 can also predict how much the battery will run down if the device is used at a normal frequency since the last time it was charged, and can therefore determine which radiographic imaging device should be charged next based on the amount of battery power that has run down. Such information about each radiographic imaging device 2 can be notified to a user's (administrator's) PC or the like via a network.

[0028] The control unit 13 associates the charging device 1 with the console 33 connected via a network or by wire in advance, and also associates the inserted radiographic imaging device 2 with the console 33. When another radiographic imaging device 2 is inserted into the charging device 1, the control unit 13 may change the relationship between the radiographic imaging device 2 and a console belonging to another radiographic imaging system that was already associated with the radiographic imaging device 2, and associate the console 33 associated with the charging device 1 with the new radiographic imaging device 2.

[0029] [Second embodiment] In the first embodiment, the power supply unit 12 was fixedly positioned at a predetermined position on the front wall surface of the storage unit 11, but in this embodiment, the position of the power supply unit 12 can be freely changed along the front wall surface of the storage unit 11. Except for the differences described above, this embodiment also has all the configurations of the first embodiment.

[0030] Since radiographic imaging devices 2 are not necessarily of the same standard, the position of power receiving unit 22 may differ depending on the model. By being able to freely change the position of power supply unit 12, it is possible to accommodate different models of radiographic imaging devices.

[0031] As shown in FIG. 5, the storage section 11 in this embodiment has, for example, two rails (first rails 151, 151) in the vertical direction and one rail (second rail 152) in the horizontal direction. Power supply unit 12 is engaged with second rail 152 by an engaging portion (not shown). Power supply unit 12 can move freely in the horizontal direction on second rail 152 and can be fixed at any position. This allows power supply unit 12 to be freely repositioned in the horizontal direction. Second rail 152 can also be freely moved in the vertical direction along first rail 151 and can be fixed at any position. This allows power supply unit 12 to be freely repositioned in the vertical direction on the front wall surface of housing unit 11. Therefore, even if the position of the power receiving unit 22 of the radiographic image capturing device 2 is different, the position of the power feeding unit 12 can be made to correspond to the position of the power receiving unit 22 accurately. Furthermore, an engagement portion (not shown) of power supply unit 12 can be removed from second rail 152. This allows power supply unit 12 to be attached to and detached from housing unit 11, which is convenient for maintenance.

[0032] [Third embodiment] In the first embodiment, the charging device 1 is mounted on the rear of the main body 31 of the medical cart 3, but in this embodiment, the charging device 1 is in the form of a cradle as shown in FIG. The charging device 1 includes a housing section 11 for housing the radiographic image capturing device 2, and a power supply section 12. As in the first embodiment, the power supply unit 12 of the charging device 1 has a power supply coil 121 connected to a power source (not shown), and supplies power wirelessly (contactlessly) from the power supply unit 12 to the power receiving unit 22 of the radiographic imaging device 2.

[0033] As in the first embodiment, the power supply unit 12 includes a protective cover 122. As in the first embodiment, the protective cover 122 (protective member) is made of a non-conductive material and has a waterproof structure. Other structures are the same as those of the first embodiment, and the radiographic image capturing device 2 can be managed in cooperation with an external terminal.

[0034] [Variation 1] 7, the number of storage units 11 is not limited to one, but may be multiple. Each of the multiple storage units 11 is provided with a power supply unit 12, so that multiple radiographic imaging devices 2 can be charged simultaneously. The storage size of each storage unit 11 may differ depending on the external size of the radiographic imaging device 2.

[0035] [Variation 2] Furthermore, as a modified example for aligning the positions of the power receiving unit 22 and the power supply unit 12, a configuration in which the position of the power supply unit 12 is variable has been mentioned. However, as shown in FIG. 8, the positions of the power supply unit 12 may be aligned by fixing the power supply unit 12 and providing a position control means in the housing unit 11 of the radiographic imaging device 2. As an example of a position control means, since the storage section 11 is larger than the radiographic imaging device 2, a pair of left and right position control members 111 that protrude from the wall surface inside the storage section 11 and are movable horizontally can be placed to control the position of the radiographic imaging device 2 so that the positions of the power receiving section 22 and the power supply section 12 are opposite each other. The position regulating member 111 is preferably made of a resin such as polyethylene or polyacetal, which has little friction with the radiographic imaging device 2 and does not scratch the radiographic imaging device 2. Alternatively, the position regulating member 111 may be provided with elasticity by a spring or rubber material, and the position may be regulated by pressing the radiographic imaging device 2 with this elasticity.

[0036] The position control means may be provided on some or all of the walls or bottom surfaces inside the storage section 11, and may be used to adjust the horizontal and vertical positions of the power receiving section 22 and the power supply section 12 to appropriate positions where they face each other, and may also be used to control the distance between them when they face each other so that the efficiency of wireless power supply is appropriate. Furthermore, when there are a plurality of storage units 11 as shown in FIG. 7, the amount of restriction by each position restriction means may be changed so that radiographic image capturing devices 2 of different sizes can be charged.

[0037] [Effects of the present invention] According to the above embodiment, the charging device 1 includes a power supply unit 12 that wirelessly (contactlessly) supplies power to the radiographic imaging device 2. This allows the radiographic imaging device 2 to be charged while still inside the infection prevention bag 9, so that the radiographic imaging device 2 will not suffer from a power shortage. Furthermore, the infection prevention bag does not have to be a dedicated one, so that a disposable, inexpensive infection prevention bag 9 can be used, and sufficient infection prevention can be achieved. The mobile radiographic imaging system 100 including the charging device 1 and the radiographic imaging device 2 also has the same effect.

[0038] According to the above embodiment, the charging device 1 includes a storage section 11 that stores the radiographic imaging device 2, and the power supply section 12 is provided in the storage section 11. This allows the radiographic imaging device 2 to be stored in the charging device 1 while still in the infection prevention bag 9 and charged.

[0039] According to the above embodiment, the power supply unit 12 includes a power supply coil 121 that supplies power to the radiographic imaging device 2, and the power supply coil 121 causes a change in the magnetic field in the power receiving coil 221 of the power receiving unit 22 of the radiographic imaging device 2, thereby causing an induced current to flow in the power receiving coil 221, and supplying power to the radiographic imaging device 2. This allows the charging device 1 to supply power to the radiographic imaging device 2 wirelessly (non-contact).

[0040] According to the above embodiment, power supply unit 12 is detachable from housing 11. This allows power supply unit 12 to be removed when performing maintenance on power supply unit 12, making the work easier.

[0041] According to the above embodiment, the position of the power supply unit 12 can be changed within the housing unit 11. This eliminates the need for the positions of the power receiving units 22 of the radiographic imaging devices 2 to be uniform, and makes it possible to accommodate a variety of models of radiographic imaging devices.

[0042] According to the above embodiment, the housing 11 includes a position restricting member 111 as a position restricting means for restricting the position of the radiographic imaging device 2 so that the power supply unit 12 and the power receiving unit 22 of the radiographic imaging device 2 face each other. This makes it possible to accommodate various models of radiographic imaging devices 2 having different positions of the power receiving unit 22.

[0043] According to the above embodiment, the charging device 1 includes a plurality of storage units 11 and power supply units 12, and can simultaneously charge a plurality of radiographic imaging devices 2. This makes it possible to handle cases where there are a plurality of radiographic imaging devices 2 that require charging.

[0044] According to the above embodiment, the charging device 1 includes a plurality of storage units 11 with different storage sizes. This allows a single charging device 1 to accommodate a plurality of different types of radiographic imaging devices 2.

[0045] According to the above embodiment, power supply unit 12 is covered with non-conductive protective cover 122. This protects power supply unit 12 from dust and dirt, and also prevents electricity from jumping inside power supply unit 12 even if infection prevention bag 9 is electrically charged.

[0046] According to the above embodiment, power supply unit 12 is covered with waterproof protective cover 122. This prevents moisture from entering power supply unit 12 even if liquid gets into housing unit 11. Furthermore, because protective cover 122 has a waterproof structure, disinfectant can be used when disinfecting or cleaning housing unit 11.

[0047] According to the above embodiment, the charging device 1 has an attachment portion 16 for fitting to the engaging hook 311 of the vehicle body 31 of the medical examination cart 3, and is detachable from the medical examination cart 3. This allows the charging device 1 to be removed when the radiographic imaging device 2 is not in use, thereby reducing the weight of the entire mobile radiographic imaging system 100.

[0048] According to the above embodiment, the charging device 1 can change the correspondence between the radiographic imaging devices 2 and the console 33. This makes it easier to manage the radiographic imaging devices 2 even in hospitals that have a large number of radiographic imaging devices 2.

[0049] [others] Furthermore, the surface of the front wall of housing 11 around power supply unit 12 may be covered with a thin metal film. Power supply unit 12 is prone to generating electromagnetic waves that cause noise, but the generated electromagnetic waves can be blocked by the thin metal film to reduce the noise electromagnetic waves. In this case, a similar effect can be achieved by using a metal mesh, a high-permeability sheet, or the like.

[0050] Furthermore, the method for changing the position of power supply unit 12 is not limited to the method using rails as described above, and various other methods can be applied.

[0051] Additionally, housing unit 11 may be provided with an air vent (not shown). Air taken in through the air vent is sent to power supply unit 12 through an air passage (not shown), allowing power supply unit 12 to be naturally cooled. This prevents power supply unit 12 from overheating and maintains a good temperature. Furthermore, the cooling method for power supply unit 12 may be a forced cooling method using a fan instead of natural air cooling, which can reliably prevent power supply unit 12 from overheating even when used in hot weather such as summer. Furthermore, the air vent may have a chimney that is removable from the housing 11. When the charging time is short, there is little risk of overheating the power supply unit 12, so the chimney may be removed when the device is used for short-term charging only.

[0052] Furthermore, power supply unit 12 may be flat and embedded in the front wall surface of housing unit 11. If power supply unit 12 and power receiving unit 22 of radiographic imaging device 2 are located at a sufficiently close distance, necessary and sufficient power supply efficiency can be ensured. Furthermore, the protruding width of power supply unit 12 from the front wall surface of housing 11 may be adjustable. Depending on the model of radiographic imaging device 2, reducing the protruding width of power supply unit 12 can secure space, thereby reducing the volume of housing 11 and making charging device 1 smaller overall. Furthermore, the protruding width can be increased as needed from the perspective of power supply efficiency.

[0053] In addition, guide grooves for guiding the insertion and removal of the radiographic imaging device 2 may be provided on the right and left wall surfaces of the housing section 11. In addition, a buffer mechanism for absorbing the impact when the radiographic imaging device 2 is dropped, a support plate for receiving the radiographic imaging device 2, etc. may be provided on the bottom surface. This allows even a heavy radiographic image capturing device 2 to be taken in and out with relatively little effort. The buffer mechanism may also include a damper, etc. This can more reliably cushion the impact of the radiographic image capturing device 2 being dropped. The guide groove and the buffer mechanism may be provided on top of the position regulating means, or the position regulating means may also serve as the guide groove and the buffer mechanism.

[0054] Other methods such as electric field coupling, magnetic field resonance, etc. may also be used as the wireless power supply method. When the electric field coupling method is used, the same effect as in the above embodiment can be obtained by using a capacitor in place of the two opposing coils in the power supply unit 12 and the power receiving unit 22 of the radiographic image capturing device 2.

[0055] Of course, other specific details of the structure can be changed as appropriate. [Explanation of symbols]

[0056] 1 Charging device 2. Radiography equipment 9 Infection prevention bag 11 Storage section 12 Power supply unit 13 Control Unit 16 Mounting part 22 Power receiving unit 23 Rechargeable battery 3 Medical cart 100 Mobile radiographic imaging system 111 Position control member (position control means) 121 Power supply coil 122 Protective cover (protective material) 221 Receiving coil

Claims

1. A charging device that supplies power to a radiographic imaging device, a power supply unit that supplies power to the radiographic imaging device in a non-contact manner; a housing section that houses the radiographic imaging device; an attachment portion for the medical cart; It is detachable from the medical cart, the power supply unit is provided in the housing unit, the housing unit includes a position restricting means for restricting the position of the radiographic image capturing device so that the power supply unit and the power receiving unit of the radiographic image capturing device face each other; The position restriction means is a charging device including a position restriction member protruding from a wall surface inside the storage section.

2. A charging device for supplying power to a radiographic imaging device, a power supply unit that supplies power to the radiographic imaging device in a non-contact manner; a housing section that houses the radiographic imaging device; a control unit that changes the correspondence between the radiation image capturing device and the console, the power supply unit is provided in the housing unit, the housing unit includes a position restricting means for restricting the position of the radiographic image capturing device so that the power supply unit and the power receiving unit of the radiographic image capturing device face each other; The position restriction means is a charging device including a position restriction member protruding from a wall surface inside the storage section.

3. the power supply unit includes a power supply coil that supplies power to the radiation image capturing device, 3. The charging device according to claim 1, wherein the power supply coil causes a change in a magnetic field in a power receiving coil of a power receiving unit of the radiographic imaging device, thereby causing an induced current to flow in the power receiving coil and supplying power to the radiographic imaging device.

4. 4. The charging device according to claim 1, wherein the power supply unit is detachable from the housing unit.

5. The charging device according to claim 1 , wherein the position of the power supply unit within the housing unit is changeable.

6. The charging device according to claim 1 , wherein the charging device includes a plurality of the storage units and a plurality of the power supply units, and is capable of simultaneously charging a plurality of the radiographic imaging devices.

7. The charging device according to claim 6, wherein the plurality of storage sections have different storage sizes.

8. 8. The charging device according to claim 1, wherein the power supply unit is covered with a non-conductive protective member.

9. 9. The charging device according to claim 1, wherein the power supply unit is covered with a waterproof protective member.

Images