JP6355365B2 - Radiation imaging device, radiation imaging system, non-contact power supply device - Google Patents

Description

  The present invention relates to a radiation imaging apparatus having a non-contact power receiving function.

Patent Document 1 discloses a radiation imaging apparatus that performs non-contact power reception in order to obtain power necessary for a radiation sensor panel and an electric substrate. When receiving power in a non-contact manner as in Patent Document 1, the radiographic apparatus does not require an electrical contact for directly contacting the power receiving unit and the power feeding unit outside the housing. It is possible to prevent leakage.
Specifically, Patent Document 1 discloses that the non-contact power receiving unit of the radiation imaging apparatus is fed by a non-contact power feeding unit provided in a cradle that holds and charges the entire radiation imaging apparatus.

JP 2008-170315 A

However, with the method disclosed in Patent Document 1, it is difficult to specify and hold the non-contact power receiving unit and the non-contact power feeding unit at appropriate positions for various sizes of radiographic apparatuses. For this reason, there is a problem that it is complicated to align the non-contact power receiving unit and the non-contact power feeding unit in correspondence with radiation imaging apparatuses of various sizes.
Accordingly, an object of the present invention is to provide a radiation imaging apparatus that can stably perform non-contact power reception even for radiation imaging apparatuses of various sizes.

The present onset Ming, a radiation sensor panel for converting a radiation into an image signal, a non-contact power receiving unit that receives power supplied by the non-contact from the non-contact power feeding section, and the radiation sensor panel and the contactless power receiving section anda housing enclosing a enclosed in the provided or housing to said housing, radiography with a holding means for holding the non-contact power supply unit to the position where the non-contact power receiving portion can be receiving the power The housing includes a radiation incident part for allowing radiation to enter the radiation sensor panel, and a rectangular back part facing the radiation incident part, and the holding means includes the back part. in part, the short side direction in the central portion, in the longitudinal direction are characterized that they are being placed on the end side than the position of the secondary battery.

  According to the present invention, it is possible to provide a radiation imaging apparatus that can stably perform non-contact power reception for radiation imaging apparatuses of various sizes.

It is the top view and sectional drawing of a radiography apparatus and a non-contact electric power supply of 1st embodiment. It is a flowchart which shows the charging method of the radiography apparatus of 1st embodiment. It is the top view and sectional drawing of a radiography apparatus and a non-contact electric power supply of 2nd embodiment. It is the top view and sectional drawing of the radiography apparatus of 3rd embodiment. It is the top view and sectional drawing which showed a part of back surface of the radiography apparatus of 4th embodiment. It is sectional drawing of the radiography apparatus of 5th embodiment. It is a figure of the radiography system which shows the application example of 1st to 5th embodiment.

(First embodiment)
A radiation imaging apparatus according to the first embodiment will be described with reference to FIG. FIG. 1A is a cross-sectional view of the radiation imaging apparatus 101 and the non-contact power supply apparatus 120 according to the first embodiment, and FIG. 1B is a radiation viewed from a surface facing a surface on which radiation is incident. 1 is a plan view of an imaging device 101. FIG.

  The radiation imaging apparatus according to the present embodiment includes a radiation sensor panel 103 that converts radiation into an image signal, a contactless power receiving unit 111 that receives power supplied from the contactless power supply unit 122 in a contactless manner, and the radiation sensor panel 103. And a non-contact power receiving unit 111. The housing 102 is provided with a holding unit 117 that holds the non-contact power feeding unit 122 at a position where the non-contact power receiving unit 111 can receive power.

  With the above configuration, the radiation imaging apparatus 101 can easily align the position of the non-contact power feeding unit 122 with respect to the non-contact power receiving unit 111, so that power receiving work is facilitated. Furthermore, when power is supplied to the radiation imaging apparatus 101, the non-contact power feeding unit 122 is held by the holding unit at a position where the power receiving efficiency becomes a certain level or higher with respect to the non-contact power receiving unit 111. Can be received. In addition, by providing a holding unit capable of holding the position of the non-contact power feeding unit 122 on the radiation imaging apparatus 101 side, the radiation imaging apparatus 101 of various sizes can be charged by one type of non-contact power feeding apparatus 120. It becomes. Hereinafter, each configuration will be described in detail.

  In the radiation sensor panel 103, a plurality of photoelectric conversion elements are arranged, and on the surface (detection surface) side where the photoelectric conversion elements are arranged, a phosphor (not shown) that converts radiation into visible light that can be sensed by the photoelectric conversion elements. ) Is arranged. The phosphor emits light by the radiation applied to the radiation imaging apparatus 101, and the photoelectric conversion elements of the radiation sensor panel 103 convert the light into image signals. Here, the surface on which the photoelectric conversion elements of the radiation sensor panel 103 are arranged is defined as a detection surface, and the area on the detection surface where a plurality of photoelectric conversion elements are disposed is defined as a pixel area. In addition, instead of the photoelectric conversion element and the phosphor, a conversion element that converts radiation directly into an electric charge may be used. In that case, a surface on which the conversion element is arranged is a detection surface, and an area in which a plurality of conversion elements are arranged. Becomes a pixel region.

  The housing 102 includes a radiation sensor panel 103 and a non-contact power receiving unit 111.

  The casing 102 includes a radiation incident portion 109 and a casing main body 110 that forms the side surface and bottom surface of the other casing 102. Note that at least a part of the housing main body 110 corresponds to a portion different from the radiation incident portion 109 in the housing of the present invention. The radiation incident part 109 is made of a material having a lower radiation absorption rate than that of the housing body 110 in order to cause the radiation to enter the radiation sensor panel 103. In addition, it is preferable that the radiation incident part 109 is light in weight and can secure a certain strength against an impact or the like. For example, a resin material or CFRP (carbon fiber reinforced plastic) is used as the material of the radiation incident portion 109. The casing body 110 is made of a low specific gravity material such as magnesium, aluminum, or CFRP in order to ensure strength against dropping or impact and to reduce weight for the purpose of reducing the burden during transportation. In order to improve the electromagnetic shielding capability of the radiation imaging apparatus 101, a conductive metal material such as magnesium or aluminum is used. The electromagnetic shielding ability refers to an ability to make the operation of the radiation imaging apparatus 101 less affected by an electromagnetic wave generated from an electric device or the like in the vicinity of the radiation imaging apparatus 101, or an electromagnetic wave emitted from the radiation imaging apparatus 101 to the outside of the housing 102. Refers to the ability to shield.

  Next, the non-contact power receiving unit 111 will be described. The radiation imaging apparatus 101 receives power by an electromagnetic induction method as an example of a non-contact power receiving method. In particular, in the case of the electromagnetic induction method, the power receiving efficiency is increased when the central axes of the primary side coil and the secondary side coil are matched. The non-contact power reception unit 111 uses a circular coil as shown in FIG. 1 when performing non-contact power reception by an electromagnetic induction method. Further, the shape of the coil can be changed in accordance with the arrangement in the radiation imaging apparatus 101 and the power to be received. For example, an elliptical or rectangular coil can be used. In this embodiment, it is arranged on the back side of the radiation imaging apparatus 101, but it can be arranged on the side surface side or the incident surface side as necessary. The radiographic apparatus 101 may use a radio wave reception type or a resonance type as another method of non-contact power reception. In that case, the non-contact power receiving unit 111 uses a receiving antenna or a resonable coil.

  Next, the holding means 117 will be described in detail. The holding unit 117 holds the position of the non-contact power feeding device 120 with respect to the non-contact power receiving unit 111. In this embodiment, the recess 115 and the magnet 116 are used, but the present invention is not limited to this. For example, the position of the non-contact power feeding device 120 may be held with respect to the housing 102 by mechanically providing a fitting portion. The holding means 117 can also be provided in the housing depending on the embodiment. Further, the holding means 117 can be provided by only one of the recess 115 and the magnet 116.

  As shown in FIG. 1, the holding unit 117 is disposed on the opposite side of the radiation incident unit 109 with respect to the radiation sensor panel 103. In addition, arrangement | positioning in this embodiment is an example, and you may arrange | position the holding means 117 to the side surface side or detection surface side of the radiation sensor panel 103 as needed. In order to obtain high power receiving efficiency, the holding unit 117 preferably matches the central axes of the non-contact power receiving unit 111 and the non-contact power feeding unit 122 to such an extent that power can be received. In particular, when performing electromagnetic induction type non-contact power reception, the power receiving efficiency is increased when the central axis of the coil that is the non-contact power receiving unit 111 and the central axis of the coil that is the non-contact power feeding unit 122 are matched. In this case, the holding unit 117 holds the distance so that the distance between the non-contact power receiving unit 111 and the non-contact power feeding unit 122 is about several mm to 100 mm. Note that this distance is a position at which a certain level of power reception efficiency can be ensured according to the non-contact power reception method, and is not limited to this.

  The recess 115 included in the holding means 117 is provided on the back side of the housing body 110. A non-contact power receiving unit 111 that receives electric power supplied from the non-contact power feeding unit 122 in a non-contact manner is provided inside the recess 115. When supplying power, the entire contact portion 120 or a part of the contactless power supply device 120 is disposed in the recess 115. Since the size of the recess 115 corresponds to the size of the non-contact power feeding device 120, the non-contact power feeding device 120 is mechanically held. Further, when the housing body 110 is made of a material having a high electromagnetic shielding ability, the recessed portion 115 is made of a material whose electromagnetic shielding ability is lower than that of other portions only in the periphery of the non-contact power receiving portion 111 in the recessed portion 115. can do. With this configuration, the electromagnetic shielding ability can be ensured while improving the power receiving efficiency of the non-contact power receiving unit 111. Furthermore, by disposing the non-contact power receiving unit 111 inside the recess, it is difficult to transmit an external force applied to the radiation imaging apparatus 101, so that the non-contact power receiving unit 111 can be protected. Further, the user can also use the recessed portion 115 as a handle when being carried. In the present embodiment, the recess 115 is provided at a position where the fingertip is applied when the user grasps the radiation imaging apparatus 101. With this configuration, it is possible to provide the recessed portion 115 in the housing 102 and improve user convenience.

  The magnet 116 included in the holding unit 117 is provided on the back side of the housing body 110. As shown in FIG. 1B, the magnet 116 is provided on the outer surface of the flat portion of the recess 115. Further, the magnet 116 is disposed so as to surround the non-contact power receiving unit 111. In the non-contact power supply device 120, a magnet (not shown) is disposed at a position corresponding to the magnet 116. Due to the magnetic field generated from the magnet 116, the non-contact power reception unit 111 is disposed at a position that does not affect the power reception efficiency of the non-contact power reception unit 111 during power reception. With this configuration, the non-contact power feeding device 120 is held by a magnetic force with respect to the housing, and can hold the positions of the non-contact power receiving unit 111 and the non-contact power feeding unit 122. The holding by these holding means can be separated by a predetermined load. On the other hand, the magnet 116 which is the holding means 117 can be provided in the housing unlike FIG. With this configuration, since the magnet 116 is not exposed outside the housing, the magnet 116 can be protected from an external impact. As yet another means, a magnetic material that does not generate magnetic force may be provided instead of the magnet 116, and a magnet that generates magnetic force may be disposed at a corresponding position on the non-contact power supply apparatus 120 side. With this configuration, the radiation imaging apparatus 101 can easily visually recognize the position of the non-contact power receiving unit 111. Furthermore, since the radiation imaging apparatus 101 can hold the position of the non-contact power receiving unit 111 and the non-contact power feeding unit 122, it is possible to prevent the non-contact power feeding device 120 from being detached during non-contact power reception.

  Furthermore, the holding means 117 has a mark 118 for visually recognizing the position of the non-contact power receiving unit 111 in the housing 102. A mark 118 indicates a position where the non-contact power receiving unit 111 is arranged when the non-contact power receiving unit 111 is in the housing 102 and cannot be visually recognized. With this configuration, the visibility of the position of the non-contact power receiving unit 111 can be improved.

  The housing 102 further includes a support portion 104, electric boards 105 and 106, a secondary battery 107, and a charging circuit 112. The support unit 104 is a panel support structure that supports the radiation sensor panel 103. The support unit 104 includes a plurality of leg portions 104 a on the opposite surface of the surface that supports the radiation sensor panel 103. It is joined to the inner wall. A flexible printed wiring board (FPC) 108 is connected to the radiation sensor panel 103, and the other end of the FPC 108 is connected to an electric board 105 for processing image signals of the radiation sensor panel 103. The electric board 105 is disposed in a space provided between the support part 104 and the housing 102 by the leg part 104a. In addition, an electric board 106 that controls the entire system of the radiation imaging apparatus 101 is disposed in this space. Further, a battery 107 for charging a power source for supplying to each unit such as the radiation sensor panel 103 and the electric boards 105 and 106 is disposed. As the battery 107, it is desirable that the radiation imaging apparatus 101 can be reduced in weight and size as much as possible. For example, a secondary battery such as a lithium ion battery or a lithium ion polymer battery is used. A charging circuit 112 is used to rectify a current generated in the non-contact power reception unit 111 and charge it with a predetermined voltage.

  Next, the non-contact power feeding device 120 illustrated in FIG. 1 will be described. In the non-contact power supply apparatus 120, a non-contact power supply unit 122, a power supply circuit board 123, and a power conversion unit 124 are included in a power supply unit housing 121.

  The non-contact power feeding unit 122 includes a primary coil when performing non-contact power feeding by an electromagnetic induction method. The non-contact power supply apparatus 120 can also use a non-contact power supply unit 122 corresponding to a radio wave reception type and a resonance type in accordance with the method of the non-contact power reception unit 111. In this case, the non-contact power supply unit 122 uses a coil that can resonate with the transmission antenna and the non-contact power reception unit 111.

  A power cable 126 for supplying power from an external commercial power source or the like is connected to the power conversion unit 124. The power converter 124 rectifies the commercial power supplied from the power cable 126 by a rectifier circuit and supplies the rectified current to the power supply circuit board 123 as a direct current.

  The power feeding circuit board 123 converts DC power into AC power and supplies it to the non-contact power feeding unit 122. The power supply circuit board 123 also has a built-in protection circuit that detects abnormalities such as temperature abnormality and overcurrent during power supply and controls the power supply state. And the non-contact electric power feeder 120 has the radiation shielding material 135 for protecting these circuits from radiation. With this configuration, it is possible to reduce the radiation applied to the feeder circuit board 123. As the radiation shielding material 135, a resin sheet in which a metal having a high specific gravity or a metal powder is mixed can be used. Further, the non-contact power supply apparatus 120 authenticates the radiation imaging apparatus 101 connected through the non-contact power supply unit 122 before starting the power supply, and starts power supply after confirmation. A display unit 127 provided in the non-contact power feeding device 120 displays a power feeding state, a state such as an error, and the like.

  The non-contact power supply apparatus 120 includes a held unit that corresponds to the holding unit 117 of the radiation imaging apparatus 101. The held means can be configured such that the non-contact power feeding device 120 having a size corresponding to the dent 115 serves as the held means or has a magnet corresponding to the magnet 116. The non-contact power supply device 120 contains only electric parts necessary for non-contact power supply, and does not have a wide flat part for stably placing the radiation imaging apparatus 101. Thereby, the non-contact electric power feeder 120 can be comprised with a small volume. The non-contact power feeding device 120 can reduce the installation space during power reception because the power feeding unit is small. For this reason, it becomes easy to arrange | position in the place which performs imaging | photography work, such as under the top plate of an imaging | photography stand.

  Further, the power conversion unit 124 built in the non-contact power feeding device 120 of FIG. 1 can be taken out of the housing and placed in the middle of the power cable as a power adapter. With this configuration, the thickness of the power supply housing 121 can be reduced, so that convenience is improved. Further, the present embodiment can also be applied to a system that mounts the radiation imaging apparatus 101 and receives power with respect to the non-contact power feeding apparatus 120 having a mounting surface. Even if the radiation imaging apparatus 101 has various sizes, the position with the non-contact power feeding apparatus 120 can be held by having the holding unit 117.

  Next, a charging method of the radiation imaging apparatus 101 will be described using a flowchart with reference to FIG. First, as step S101, the radiation imaging apparatus 101 is placed on the top plate of the imaging stand so that the radiation incident part 109 is on the lower side. Next, as step S <b> 102, the holding unit 117 of the radiation imaging apparatus 101 holds the non-contact power feeding apparatus 120. By this step, the non-contact power feeding unit 120 is held at a position where the non-contact power receiving unit 111 of the radiation imaging apparatus 101 can receive power. In the case of the electromagnetic induction method, this position is a position that is held so that the central axes of the coils of the non-contact power feeding unit 122 and the non-contact power receiving unit 111 coincide. In step S103, power is supplied from the non-contact power supply apparatus 120 to the radiation imaging apparatus 101. As a result, in step S104, the radiation imaging apparatus 101 receives the supplied power and charges the battery 107.

  In the present embodiment, when the non-contact power feeding unit 122 and the non-contact power receiving unit 111 are fixed, the alignment is completed, and an adjustment and adjustment mechanism is unnecessary. Furthermore, the non-contact power feeding device 120 can be used for general purposes as long as the holding means 117 is provided for radiation imaging apparatuses of different sizes.

  As described above, since the positions of the non-contact power supply unit and the non-contact power reception unit can be easily specified and held even for various sizes of radiography devices, the radiography device that can stably perform non-contact power reception. It becomes possible to provide.

(Second embodiment)
A second embodiment will be described with reference to FIG. 3A and 3B show a plan view and a longitudinal sectional view of the non-contact power feeding device, and FIG. 3C shows the radiation imaging apparatus 101 with the non-contact power feeding device attached. The figure seen from the back is shown.

  In the first embodiment and the second embodiment, the configuration of the non-contact power feeding device is different, and the non-contact power receiving unit 111 and the non-contact power feeding unit 122 are in a state where the non-contact power feeding device is attached to the radiation imaging apparatus 101. The rotating part which can rotate the non-contact electric power feeder 120 is maintained, maintaining a position. The radiation imaging apparatus 101 has the same configuration as that of the first embodiment. With this configuration, the power cable 131 can be freely routed and the non-contact power feeding device 120 can be easily fixed. Furthermore, since the degree of freedom of processing of the power cable 131 is improved, the radiation imaging apparatus 101 can be easily moved even during power reception.

  In FIG.3 (b), the non-contact electric power feeding part 122, the electric power feeding circuit board 123, and the radiation shielding material 135 are the structures similar to 1st embodiment. The power feeding unit housing 141 has a cylindrical shape, and includes a housing fixing unit 142 that holds a magnet catch 125 to be held by the magnet 116, and a housing rotating unit 143 that holds the non-contact power feeding unit 122. Yes. The housing fixing portion 142 and the housing rotating portion 143 are connected so as to be rotated by the rotating portion 144. As shown in FIG. 3B, the rotating unit 144 is configured by, for example, a rolling bearing. The rotation center axis of the rotation unit 144 coincides with the center axis of the non-contact power supply unit 122.

  As shown in FIG. 3C, the housing rotating unit 143 can be rotated with the non-contact power supply device 120 attached to the radiation imaging apparatus 101, and the power cable 131 can be easily wired on the rear surface of the housing. Become.

  As described above, in this embodiment, in addition to the effects of the first embodiment, workability at the time of power reception can be improved without reducing the power reception efficiency of the non-contact power feeding unit 122 and the non-contact power reception unit 111. .

(Third embodiment)
A third embodiment will be described with reference to FIG. FIG. 4A is a view of the radiation imaging apparatus 101 viewed from the radiation incident unit 109 side. FIG. 4B is a cross-sectional view in the AA direction of FIG. The radiation imaging apparatus 101 of the third embodiment is different from the other embodiments in that a non-contact power receiving unit 111 is provided on the surface side on which radiation is incident. Since the configuration without description of the embodiment is the same as that of the first embodiment, detailed description thereof is omitted. Further, the conductivity of the radiation incident portion 109 of the housing 102 (surface on which radiation is incident) is lower than that of the housing body 110 (surface other than the surface on which radiation is incident). With this configuration, non-contact power reception can be performed easily and stably while improving the electromagnetic shielding capability and power reception efficiency of the radiation imaging apparatus 101. Each configuration will be described in detail below.

  As shown in FIG. 4, the non-contact power reception unit 111 is disposed between a region different from the pixel region on the detection surface of the radiation sensor panel 103 and the radiation incident unit 109. The length in the short side direction of the pixel region 113 in FIG. 4A corresponds to the distance L1 in FIG. By disposing the non-contact power reception unit 111 so as to avoid the pixel region 113, it is possible to prevent radiation from passing through the non-contact power reception unit 111.

  In the present embodiment, the non-contact power reception unit 111 is disposed above the connection portion of the FPC 108. Since the radiation imaging apparatus 101 provides a space for wiring the FPC 108, L2 is longer when comparing the lengths L2 and L3, which are the distance between the radiation sensor panel 103 and the housing 102. Therefore, the radiation imaging apparatus 101 can suppress an increase in size while disposing the non-contact power reception unit 111 on the incident surface side by disposing the non-contact power reception unit 111 in this space.

  Further, a magnetic sheet 119 is disposed between the radiation sensor panel 103 and the non-contact power receiving unit 111. The magnetic sheet 119 does not leak magnetic flux to the surroundings during non-contact power reception, and acts so as not to affect the operation of the radiation sensor panel 103 and the FPC 108. Further, the magnetic sheet 119 acts to prevent the generation of eddy currents in a conductor such as a metal disposed around the non-contact power receiving unit 111, thereby reducing the heat generated during the non-contact power reception. Can increase the efficiency. The magnetic sheet 119 preferably has a high relative magnetic permeability and a small thickness. As an example, in the case of the electromagnetic induction method, a magnetic sheet made of a Co-based amorphous material having a thickness of 0.1 mm is used, but the present invention is not limited to this.

  The radiation imaging apparatus 101 can further be provided with a cushioning material 114 for absorbing an external impact as shown in FIG. In this case, by disposing the housing 102 and the buffer material 114 so as to avoid the buffer material 114, it is possible to prevent an increase in the thickness of the radiation imaging apparatus 101 while arranging the buffer material 114 and the non-contact power receiving unit 111. it can.

  An embodiment of another radiation imaging apparatus 101 will be described. An area in which the pixel area of the radiation incident part 109 is orthographically projected on the radiation incident part 109 is defined as an orthographic projection area. The non-contact power receiving unit 111 can be configured to be embedded in the radiation incident unit 109 in a region different from the orthographic projection region. Further, the magnetic sheet 119 may be embedded in the non-contact power receiving unit 111 as one body. With this arrangement, the radiation imaging apparatus 101 can reduce the arrangement space of the non-contact power receiving unit 111, and thus can suppress an increase in the thickness of the radiation imaging apparatus 101.

(Fourth embodiment)
A fourth embodiment will be described with reference to FIG. FIG. 5A is a cross-sectional view of the radiation imaging apparatus 101 as viewed from the side. FIG. 5B is an enlarged view of a part of FIG. 5A viewed from the back side, and is a view cut out around the moving means. The fourth embodiment is different from the other embodiments in that the non-contact power receiving unit 111 has moving means for moving the position between the inside of the housing 102 and the outside of the housing 102. With this configuration, non-contact power reception can be performed easily and stably while ensuring the electromagnetic shielding capability and power reception efficiency of the radiation imaging apparatus 101. Each configuration will be described in detail below. In the present embodiment, the same numbers are assigned to the same configurations as those in the other embodiments, and detailed description thereof is omitted.

  FIG. 5A and FIG. 5B show a state in which the non-contact power receiving unit 111 protrudes from the side surface of the housing 102 by the moving means. In the present embodiment, the non-contact power receiving unit 111 and the magnetic sheet 119 are disposed on the power receiving plate 150. The power receiving plate 150 is made of a material that has low electrical conductivity and does not decrease the power receiving efficiency. For example, a resin is used. The radiation imaging apparatus 101 can supply power to the non-contact power receiving unit 111 by disposing the non-contact power supply apparatus 120 in the lower part. The electric power received by the non-contact power reception unit 111 is supplied to the charging circuit 112 via the charging cable 151, and the battery 107 is charged. The radiation imaging apparatus 101 may further include a holding unit 117 on the power receiving plate 150. The holding means 117 is the same as in the first embodiment. With this configuration, even when the non-contact power receiving unit 111 protrudes from the side surface of the housing 102, the holding unit 117 facilitates alignment between the non-contact power receiving unit 111 and the non-contact power feeding unit 122. In addition, since the non-contact power receiving unit 111 is normally housed in the housing 102, it is possible to secure electromagnetic shielding capability at the time of radiography, and if necessary, the non-contact power receiving unit 111 can be moved out of the housing without contact. Power reception is also possible.

  The moving means will be described in detail with reference to FIG. The power receiving plate 150 is slidably held by a pair of guide portions 152 provided in the housing body 110. The power receiving plate 150 can be moved to two positions: a position protruding out of the casing 102 and a position accommodated in the casing 102.

  When the power receiving plate 150 is housed in the housing 102, the claw portion 157a of the slide lever 157 is hooked on the end portion of the eject plate 154, and the eject plate is fixed.

  Next, a case where the power receiving plate 150 is moved from the outside of the housing 102 into the housing 102 will be described. The power receiving plate 150 is fixed in position by the leaf springs 153 being fixed in the grooves at two positions and held with a constant force. When the power receiving plate 150 is pushed in from the state of FIG. 5A, the power receiving plate 150 is in contact with the eject plate 154. The eject plate 154 has a function of moving along the guide portion 152 by two pins 155 and pushing the power receiving plate 150 outward by the elastic force of the spring 156. Further, when the non-contact power receiving unit 111 is pushed in, the eject plate 154 is pressed, the spring 156 is compressed, and the non-contact power receiving unit 111 is housed in the housing. The slide lever 157 is embedded in the exterior of the housing body 110. When the power receiving plate 150 is moved from the inside of the housing 102 to the outside of the housing 102, the claw portion 157a is detached by sliding the slide lever 157 in the B direction from the outside, and the ejection of the eject plate 154 is released.

(Fifth embodiment)
The fifth embodiment will be described with reference to FIG. The radiation imaging apparatus 101 in the fifth embodiment is different from the other embodiments in that the radiation incident part 109 is disposed on the facing surface side of the radiation sensor panel 103 facing the detection surface. With this configuration, the phosphor (not shown) on the photoelectric conversion element emits light more intensely at the portion close to the photoelectric conversion element, so that the scattered light is reduced compared to the case where radiation is incident from the detection surface, and the resolution of the captured image is reduced. Becomes higher. Other configurations not described below are the same as those in the other embodiments.

  Each configuration will be described in detail below. The non-contact power receiving unit 111 is disposed between the radiation incident unit 109 and a surface facing the detection surface of the radiation sensor panel 103. Further, the non-contact power receiving unit 111 is arranged in a region different from a region where the pixel region of the radiation sensor panel 103 is orthographically projected on the radiation incident unit 109. Therefore, the non-contact power receiving unit 111 can increase the distance from the detection surface of the radiation sensor panel 103 or the FPC 108 as compared with other embodiments. For this reason, when the non-contact power reception unit 111 receives power, the influence of the leakage magnetic flux generated at the time of power reception on the operation of the radiation sensor panel 103 and the FPC 108 can be reduced, and the decrease in power reception efficiency can be suppressed.

(Sixth embodiment)
FIG. 7 is a diagram illustrating an application example of the radiation imaging apparatus according to the first to fifth embodiments to the radiation imaging system 701. The radiation imaging apparatus 101 according to any one of the embodiments of the present invention is applied to a radiation imaging system 701 that is an embodiment of the radiation imaging apparatus.

  The radiation imaging system 701 includes an X-ray tube 6050 as a radiation source, a radiation imaging apparatus 6040, an image processor 6070 as signal processing means, and displays 6080 and 6081 as display means. Further, the radiation imaging system 701 includes a film processor 6100 and a laser printer 6120 in addition to these.

  Radiation (X-rays) 6060 generated by an X-ray tube 6050 serving as a radiation source passes through the imaging region 6062 of the subject 6061 and enters the radiation imaging apparatus 6040. The radiation incident on the radiation imaging apparatus 6040 includes information inside the imaging region 6062 of the subject 6061.

  When radiation enters the radiation imaging apparatus 6040, the scintillator layer 13 emits light according to the incident radiation, and the photoelectric conversion element array 11 photoelectrically converts light emitted from the scintillator layer 13. Thereby, information on the imaging region 6062 of the electrical subject 6061 is obtained. This information is converted into a digital format and output to an image processor 6070 as signal processing means.

  The image processor 6070 as a signal processing unit is a computer including a CPU, a RAM, and a ROM. Furthermore, the image processor 6070 has a recording medium capable of recording various types of information as recording means. For example, the image processor 6070 has a built-in HDD, SSD, recordable optical disk drive, or the like as recording means. Alternatively, the image processor 6070 may be externally connectable to an HDD or SSD as a recording unit, a recordable optical disk drive, or the like.

  Then, an image processor 6070 as a signal processing unit performs predetermined signal processing on the information and displays the information on a display 6080 as a display unit. Thereby, the subject and the examiner can observe the image. Further, the image processor 6070 can record this information on an HDD, SSD, or recordable optical disk drive as a recording means.

  The image processor 6070 may be configured to have an interface capable of transmitting information to the outside as information transmission means. As such an interface as a transmission means, for example, an interface to which a LAN or a telephone line 6090 can be connected is applicable.

  The image processor 6070 can transmit this information to a remote place through an interface as a transmission means. For example, the image processor 6070 transmits this information to a doctor room at a location away from the X-ray room in which the radiation imaging apparatus 6040 is installed. Thereby, a doctor or the like can diagnose the subject in a remote place. The radiation imaging system 701 can also record this information on the film 6110 by a film processor 6100 as a recording means.

  Although the present invention has been described in detail based on the embodiments, the present invention is not limited to these specific embodiments, and various forms within the scope of the present invention are within the scope of the present invention. included. Furthermore, each embodiment mentioned above shows only one embodiment of this invention, and it is also possible to combine each embodiment suitably.

DESCRIPTION OF SYMBOLS 101 Radiography apparatus 102 Case 103 Radiation sensor panel 111 Non-contact power receiving part 122 Non-contact electric power feeding part 117 Holding means

Claims (15)

A radiation sensor panel for converting radiation into image signals;
A non-contact power receiving unit that receives electric power supplied in a non-contact manner from the non-contact power feeding unit;
A housing containing the radiation sensor panel and the non-contact power receiving unit;
A radiographic apparatus comprising: a holding unit that holds the non-contact power feeding unit at a position where the non-contact power receiving unit is capable of receiving the power.
The housing includes a radiation incident part for causing radiation to enter the radiation sensor panel, and a rectangular back part facing the radiation incident part,
It said retaining means, in the back portion, the central portion in the short side direction, with the long side direction, the radiation imaging apparatus according to claim that you have been disposed on the end side than the position of the secondary battery. The holding means is
The radiation imaging apparatus according to claim 1, wherein the radiation imaging apparatus is a magnet that holds the position of the non-contact power feeding unit by magnetic force. The holding means has a recess,
The radiographic apparatus according to claim 1, wherein the non-contact power feeding unit is mechanically held in the recess so as to mechanically hold the position of the non-contact power feeding unit with respect to the non-contact power receiving unit. .   The radiographic apparatus according to claim 1, wherein the holding unit has a mark indicating a position of the non-contact power receiving unit. The housing has a radiation incident part for making the radiation incident on the radiation sensor panel,
5. The radiation imaging apparatus according to claim 1, wherein the holding unit is disposed on a side opposite to the radiation incident portion with respect to the radiation sensor panel. 6. A radiation sensor panel for converting radiation into image signals;
A non-contact power receiving unit that receives electric power supplied in a non-contact manner from the non-contact power feeding unit;
A housing containing the radiation sensor panel and the non-contact power receiving unit;
A radiographic apparatus comprising: a holding unit that holds the non-contact power feeding unit at a position where the non-contact power receiving unit is capable of receiving the power.
The radiation sensor panel has a detection surface having a pixel region in which a plurality of photoelectric conversion elements are arranged,
The housing is disposed on the detection surface side with respect to the radiation sensor panel, and has a radiation incident part for allowing radiation to enter the radiation sensor panel, and the conductivity of the radiation incident part is within the casing. Lower than the part different from the radiation incident part of
The non-contact power receiving unit, a radiation imaging apparatus you characterized in that it is disposed between the pixel region is different from the other region and the radiation entrance portion of the detection surface. A radiation sensor panel for converting radiation into image signals;
A non-contact power receiving unit that receives electric power supplied in a non-contact manner from the non-contact power feeding unit;
A housing containing the radiation sensor panel and the non-contact power receiving unit;
A radiographic apparatus comprising: a holding unit that holds the non-contact power feeding unit at a position where the non-contact power receiving unit is capable of receiving the power.
The radiation sensor panel has a detection surface having a pixel region in which a plurality of photoelectric conversion elements are arranged,
The housing is disposed on the detection surface side with respect to the radiation sensor panel, and has a radiation incident part for allowing radiation to enter the radiation sensor panel, and the conductivity of the radiation incident part is within the casing. Lower than the part different from the radiation incident part of
The non-contact power receiving unit, radiography you characterized in that the pixel area of the radiation incidence part is embedded in the radiation incident portion in different regions with positive projected orthogonal projection area to said radiation entrance portion apparatus. A radiation sensor panel for converting radiation into image signals;
A non-contact power receiving unit that receives electric power supplied in a non-contact manner from the non-contact power feeding unit;
A housing containing the radiation sensor panel and the non-contact power receiving unit;
A radiographic apparatus comprising: a holding unit that holds the non-contact power feeding unit at a position where the non-contact power receiving unit is capable of receiving the power .
The radiation sensor panel has a detection surface having a pixel region in which a plurality of photoelectric conversion elements are arranged, and a facing surface facing the detection surface,
The housing is disposed on the detection surface side with respect to the radiation sensor panel, and has a radiation incident part for allowing radiation to enter the radiation sensor panel, and the conductivity of the radiation incident part is within the casing. Lower than the part different from the radiation incident part of
The non-contact power receiving unit is disposed on the facing surface side with respect to the sensor panel, and the pixel region of the radiation incident unit is different from the region projected on the radiation incident unit and the facing surface. radiographic apparatus you characterized in that said pixel region is disposed between the positive projected area and different areas in the radiation incidence part. A power receiving plate on which the non-contact power receiving unit is disposed;
Moving means for moving the position of the power receiving plate between the housing and the outside of the housing;
The radiation imaging apparatus according to claim 1, further comprising:   The radiation imaging apparatus according to claim 9, wherein the holding unit is provided on the power receiving plate.   The radiographic apparatus according to claim 1, wherein the non-contact power receiving unit includes a coil that receives power from the non-contact power feeding unit by an electromagnetic induction method. The radiation imaging apparatus according to any one of claims 1 to 11,
And a signal processing means for processing a signal from the radiation imaging apparatus. A non-contact power feeding device having the non-contact power feeding unit for feeding power to the radiation imaging apparatus according to any one of claims 1 to 11,
A non-contact power feeding apparatus comprising a held means for being held by the holding means.   It further includes a rotating unit that rotates at least a part of the non-contact power feeding unit with the center of the non-contact power feeding unit as a rotation center while maintaining the positions of the non-contact power receiving unit and the non-contact power feeding unit. The contactless power supply device according to claim 13. A power supply circuit board that generates power to be supplied to the non-contact power supply unit;
The contactless power supply device according to claim 13, further comprising a radiation shielding material that reduces radiation applied to the power supply circuit board.

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