JP7362435B2 - radiography equipment - Google Patents

Description

The present invention relates to a radiation imaging apparatus that detects incident radiation and converts it into an image signal.

In recent years, digital radiation imaging apparatuses have been put into practical use that use flat panel detectors (FPDs), which are radiation detection panels, to directly digitize radiation images. This digital radiography apparatus has replaced the conventional analog radiography apparatus and has become widely used. The digital radiography apparatus employing the above-mentioned FPD can instantaneously obtain radiographic images as digital information, and has many advantages, such as saving labor in radiographing work by technicians and improving the efficiency of image interpretation by doctors.

Nowadays, radiography equipment is expected to be used in all kinds of situations, and is used not only in general imaging rooms but also in hospital rounds and in emergencies. In particular, portable radiography equipment uses an exterior casing that allows doctors and radiography technicians to easily carry it in their hands and operate the radiography equipment directly without connecting it to cables. . Therefore, in order to arrange recesses where fingers can easily be caught and functional parts such as switches and LED display parts on the peripheral edge of the exterior casing, a casing having a three-dimensional shape on the mating surfaces is adopted.

Furthermore, in some small-scale hospital facilities, the radiographic apparatus is often used as both a portable and stationary radiographic apparatus, so it is housed in a radiographic apparatus stand, a medical rounds car, or the like. Furthermore, since the radiographic apparatus is cleaned, disinfected, sterilized, etc. after use, liquids containing not only water but also organic solvents, sterilizers, etc. are frequently used. On the other hand, in consideration of ease of maintenance such as replacing or repairing the internal circuit board, it is preferable that the radiographic device has a structure in which the outer casing can be disassembled, and has a highly waterproof, lightweight, and compact casing. The product is desired.

As a conventional technique for radiographic apparatuses with such a background, Patent Document 1 proposes a technique for ensuring waterproofness by disposing a sealing member in a lid portion that closes an opening of a housing. Further, Patent Document 2 proposes a technique for ensuring waterproofness after receiving an impact by widening the width of a sealing member located at a corner of a housing when compressed.

Japanese Patent Application Publication No. 2012-181044 Japanese Patent Application Publication No. 2018-80916

In Patent Document 1, a seamless ring-shaped sealing member is arranged on the lid, and waterproofness is ensured by bringing the mating portion (junction) of the casing and the lid into contact on the same plane. Therefore, with the technology described in Patent Document 1, for example, in a case with a three-dimensional mating part, the sealing member may shift or float from a predetermined position, or the sealing member may be twisted. Therefore, it is difficult to ensure stable waterproofness.

Furthermore, in Patent Document 2, the compressed width of the sealing member located at the corner of the housing is made wider than the compressed width of the sealing member located at the straight part of the housing. The seal member has a structure that prevents it from slipping even if it receives a fall impact on the corner of the body. However, in the technique described in Patent Document 2, since the width of the sealing member is widened, the frame area of the casing becomes wide (larger), and in order to compress the wide sealing member, a highly rigid Since a housing structure is required, it is difficult to create a lightweight and compact housing structure.

The present invention has been made in view of these problems, and an object of the present invention is to provide a radiographic apparatus that can realize a lightweight and compact housing structure and ensure stable waterproofness. shall be.

The radiation imaging apparatus of the present invention includes a radiation detection panel that detects incident radiation and converts it into an image signal, a first housing member located on the side where the radiation enters, and a side opposite to the side where the radiation enters. and a second casing member located at the periphery of the radiation detection panel, and by joining the first casing member and the second casing member outside the peripheral edge of the radiation detection panel, the radiation detection panel can be placed inside interposed between the accommodating casing, the first joint portion that is the joining portion of the first casing member, and the second joint portion that is the joining portion of the second casing member . a seal member, wherein at least one of the first joint portion and the second joint portion is provided with a groove matching the shape of the seal member; is configured to include a waterproof part that is in close contact with the first joint part and the second joint part, and the waterproof part has a first length along the incident direction of the radiation, and the waterproof part has a first length along the incident direction of the radiation. The second length is larger than the second length in the direction perpendicular to the direction of incidence, and one end of the ends in the direction perpendicular to the direction of incidence is a part of the bottom surface of the groove. By contacting the bottom surface, a gap is formed between the bottom surface and the bottom surface .
Furthermore, the radiation imaging apparatus of the present invention includes a radiation detection panel that detects incident radiation and converts it into an image signal, a first housing member located on the side where the radiation enters, and a side where the radiation enters. and a second housing member located on the opposite side, and the radiation detection panel is configured by joining the first housing member and the second housing member outside the peripheral edge of the radiation detection panel. interposed between a housing accommodated therein, a first joint portion that is the joint portion of the first housing member, and a second joint portion that is the joint portion of the second housing member; a seal member, wherein at least one of the first joint portion and the second joint portion is provided with a groove matching the shape of the seal member; , the waterproof part includes a waterproof part that is in close contact with the first joint part and the second joint part, and the waterproof part has a first length along the incident direction of the radiation. The groove is larger than the second length, which is the length in the direction perpendicular to the groove, and has a fall prevention part at a position between the opening of the groove and the bottom surface.
Furthermore, the radiation imaging apparatus of the present invention includes a radiation detection panel that detects incident radiation and converts it into an image signal, a first housing member located on the side where the radiation enters, and a side where the radiation enters. and a second housing member located on the opposite side, and the radiation detection panel is configured by joining the first housing member and the second housing member outside the peripheral edge of the radiation detection panel. interposed between a housing accommodated therein, a first joint portion that is the joint portion of the first housing member, and a second joint portion that is the joint portion of the second housing member; a seal member, wherein at least one of the first joint portion and the second joint portion is provided with a groove that matches the shape of the seal member; , the waterproof part includes a waterproof part that is in close contact with the first joint part and the second joint part, and the waterproof part has a first length along the incident direction of the radiation. The first length is larger than the second length, which is the length in the direction orthogonal to the seal member, and the first length is different between the first region and the second region in the longitudinal direction of the seal member.

According to the present invention, it is possible to realize a lightweight and compact housing structure, and it is also possible to ensure stable waterproofness.

1 is a diagram showing an example of a schematic configuration of a radiation imaging apparatus according to a first embodiment of the present invention. 1 is an external view and a partial sectional view of a radiographic apparatus according to a first embodiment of the present invention. FIG. It is a figure which shows the area|region corresponding to FIG.2(c) among the schematic structures of the radiography apparatus based on the 2nd Embodiment of this invention. It is a figure showing only a sealing member among the schematic composition of the radiation imaging device concerning the 3rd embodiment of the present invention. It is a figure which shows the area|region corresponding to FIG.2(c) among the schematic structures of the radiography apparatus based on the 3rd Embodiment of this invention. It is a figure which shows the area|region corresponding to FIG.2(c) among the schematic structures of the radiography apparatus based on the 4th Embodiment of this invention. It is a figure which shows the area|region corresponding to FIG.2(c) among the schematic structures of the radiography apparatus based on the 5th Embodiment of this invention. It is a figure which shows the area|region containing the area|region corresponding to FIG.2(c) among the schematic structures of the radiography apparatus based on the 6th Embodiment of this invention. FIG. 7 is a diagram showing an example of the internal configuration of a radiation imaging apparatus according to a seventh embodiment of the present invention. FIG. 9B is a partially enlarged view and a sectional view of a region including the outer periphery of the frame portion shown in FIG. 9(b), showing a seventh embodiment of the present invention.

Hereinafter, modes for carrying out the present invention (embodiments) will be described with reference to the drawings.

(First embodiment)
First, a first embodiment of the present invention will be described.

FIG. 1 is a diagram showing an example of a schematic configuration of a radiation imaging apparatus 100 according to a first embodiment of the present invention. Moreover, FIG. 2 is an external view and a partial sectional view of the radiation imaging apparatus 100 according to the first embodiment of the present invention. Specifically, in FIG. 2, FIG. 2(a) shows an external view of the radiographic apparatus 100, and FIG. 2(b) shows an internal view of the radiographic apparatus 100 in the AA cross section shown in FIG. 2(a). 2(c) shows an enlarged view of the vicinity of the sealing member 111 shown in FIG. 2(b). Furthermore, in FIG. 2, the same components as those shown in FIG. 1 are designated by the same reference numerals. In addition, in FIGS. 2(a) to 2(c), the radiation incident direction in which the radiation 101 is incident, which is indicated by an arrow, is the Z direction, and the mutually orthogonal directions that are orthogonal to the Z direction are the X direction and the Y direction. An XYZ coordinate system is illustrated.

As shown in FIGS. 1 and 2, the radiographic apparatus 100 includes a housing 102 including a back cover 102a and a front cover 102b, a radiation detection panel 103, and a seal member 111. . The radiation detection panel 103 is a radiation detection member that detects the incident radiation 101 and converts it into an image signal. The front cover 102b is a first housing member located on the side of the housing 102 of the radiation imaging apparatus 100 into which the radiation 101 is incident. The back cover 102a is a second housing member located on the opposite side of the housing 102 of the radiation imaging apparatus 100 from the side on which the radiation 101 is incident. Furthermore, as shown in FIG. 2B, the housing 102 accommodates the radiation detection panel 103 and the like therein by joining a front cover 102b and a back cover 102a on the outside of the peripheral edge of the radiation detection panel 103. It is a casing that allows Further, FIG. 2A shows an external connector 109 provided, for example, on the back cover 102a.

The radiation detection panel 103 includes a detector 103a and a phosphor (scintillator) 103b, as shown in FIG. 2(b). The phosphor 103b is a member that converts the incident radiation 101 into light. A glass substrate is often used for the detector 103a because it has no chemical interaction with semiconductor elements, can withstand the temperature of semiconductor processes, and has dimensional stability. In the detector 103a, pixels including photoelectric conversion elements that convert incident light converted by the phosphor 103b into an image signal, which is an electric signal, are arranged in a two-dimensional matrix on the surface of such a substrate through a semiconductor process. is formed. At this time, a switch element such as a TFT may also be formed in the pixel of the detector 103a to output the electrical signal obtained by the photoelectric conversion element to the outside. The radiation detection panel 103 of this embodiment converts the radiation 101 that has passed through the subject into light corresponding to the incident radiation 101 at the phosphor 103b, and photoelectrically converts the light from the phosphor 103b at the detector 103a. Obtain radiographic images as electrical information. Furthermore, the radiation detection panel 103 may be configured to further cover a reflective sheet made of metal such as aluminum, which easily reflects the light converted by the phosphor 103b.

Further, as shown in FIG. 2(b), the front cover 102b includes a top plate portion 102c and a frame portion 102d. Here, the top plate portion 102c constitutes a radiation entrance surface through which the radiation 101 enters, and is therefore preferably made of a material such as CFRP that has high transmittance for the radiation 101 and has excellent rigidity. The frame portion 102d is preferably made of a lightweight and highly rigid metal material, such as a magnesium alloy. Further, a cushioning material 120 is provided between the top plate portion 102c and the radiation detection panel 103, and this cushioning material 120 protects the radiation detection panel 103 from loads and impacts from the direction of incidence of the radiation 101. is now possible. Further, in the radiation detection panel 103, a sensor support base 104, a flexible printed wiring (FPC) 105, and a circuit board 106 are arranged on the side opposite to the side on which the radiation 101 is incident.

Furthermore, in FIG. 2(b), the part of the front cover 102b that is joined to the back cover 102a is shown as a first joint part 1021, and the part of the back cover 102a that is joined to the front cover 102b is shown as a second joint part 1022. It is shown as In FIG. 2B, the first joint 1021 and the second joint 1022 are arranged on the side wall of the housing 102, which is perpendicular to the direction in which the radiation 101 enters. The sealing member 111 has a waterproof function and is interposed between the first joint 1021 of the front cover 102b and the second joint 1022 of the back cover 102a, as shown in FIG. 2(b). Further, the sealing member 111 is preferably made of an elastic material such as rubber, and is formed into a seamless ring shape as shown in FIG. By sandwiching them together, a waterproof structure is formed. At this time, in the example shown in FIG. 2(b), a groove 110 matching the shape of the seal member 111 is provided in the first joint portion 1021 of the front cover 102b.

Generally, when configuring a waterproof structure by placing a sealing member in close contact between divided housing members, the flatness of the joint surfaces of the housing members may be poor and uneven, or the joints may have three-dimensionally different heights. If the processing accuracy of the surface is low, there is a risk that a gap will occur between the housing member and the sealing member. As a means of suppressing the influence of variations in flatness and processing accuracy of the joint surfaces of the housing members, it is conceivable to increase the amount of crushing (deformation) of the sealing member. However, with a sealing member with a circular cross section such as a general O-ring, increasing the diameter to increase the amount of crushing increases the frame area of the casing and increases the repulsive force of the sealing member. As a result, there is a possibility that a gap may be created between the housing member and the sealing member.

Therefore, in the embodiment of the present invention, as shown in FIG. 2(c), the shape of the sealing member 111 in the XZ cross section is designed such that the aspect ratio becomes larger in the incident direction (Z direction) of the radiation 101. Form into an oval shape. Here, in FIG. 2(c), the sealing member 111 is a waterproof portion (described later in FIG. 9 A portion corresponding to the waterproof portion 711a) in (b) is shown. Specifically, in this embodiment, the seal member 111 (more specifically, the waterproof portion of the seal member 111) has a first length that is the length of the radiation incident direction (Z direction) into which the radiation 101 is incident. It is formed into an elliptical shape in which the length L1 is larger than the second length L2, which is the length in the direction (X direction) orthogonal to the radiation incident direction (Z direction).
According to this configuration, the second length L2 can be made smaller than a sealing member having a circular cross section such as a general O-ring, so the frame area of the casing can be narrowed (smaller), and it is lightweight. Moreover, a compact housing structure can be realized. Furthermore, even if the amount of crushing of the seal member 111 (more specifically, the waterproof portion of the seal member 111) increases, the first joint 1021 of the front cover 102b and the second joint 1022 of the back cover 102a can be connected with a weak pressing force. Because they can be placed in close contact with each other, it is possible to reduce the strength of the casing while ensuring stable waterproofness. That is, according to the radiographic apparatus 100 according to the first embodiment, it is possible to realize a lightweight and compact housing structure, and it is also possible to ensure stable waterproofness. Furthermore, in the radiographic apparatus 100 according to the first embodiment, since the housing 102 can be easily disassembled, it is also possible to provide a radiographic apparatus with excellent maintainability such as replacement and repair of internal components.

In this embodiment, the groove 110 is provided in the first joint 1021 of the front cover 102b as shown in FIG. 2(b), but the present invention is not limited to this form. It is not something that will be done. In the present invention, a configuration in which the groove 110 is provided in the second joint portion 1022 of the back cover 102a is also applicable. Furthermore, in the present invention, a configuration in which the groove 110 is provided in both the first joint 1021 of the front cover 102b and the second joint 1022 of the back cover 102a is also applicable. That is, in the present invention, the groove 110 may be provided in at least one of the first joint part 1021 of the front cover 102b and the second joint part 1022 of the back cover 102a.

(Second embodiment)
Next, a second embodiment of the present invention will be described. Note that in the description of the second embodiment described below, descriptions of matters common to the first embodiment described above will be omitted, and matters different from the first embodiment described above will be described.

The schematic configuration of the radiographic apparatus according to the second embodiment is similar to the schematic configuration of the radiographic apparatus 100 according to the first embodiment shown in FIG. 1 described above. The radiographic apparatus according to the second embodiment differs in its internal configuration from the radiographic apparatus 100 according to the first embodiment. Specifically, in the radiographic apparatus according to the second embodiment, the shape of the seal member 111 is different from that of the radiographic apparatus 100 according to the first embodiment shown in FIG. 2(b), and the other components are different from each other. The components are the same as those in FIG. 2(b).

FIG. 3 is a diagram showing an area corresponding to FIG. 2(c) in the schematic configuration of a radiation imaging apparatus 200 according to the second embodiment of the present invention. In FIG. 3, the same components as those shown in FIG. 2 are denoted by the same reference numerals, and detailed explanation thereof will be omitted. Further, FIG. 3 illustrates an XYZ coordinate system corresponding to the XYZ coordinate system shown in FIG. 2(c).

In FIG. 3(a), the sealing member 211a includes a joint portion (first joint portion 1021 shown in FIG. 2(b)) with the back cover 102a in a frame portion 102d included in the front cover 102b, and a frame portion in the back cover 102a. 102d (second joint portion 1022 shown in FIG. 2B) and a waterproof portion (waterproof portion 711a in FIG. 9B described later) that is in close contact with the joint portion 102d. Specifically, in FIG. 3A, the sealing member 211a is arranged in a direction perpendicular to the radiation incidence direction toward the back cover 102a in an XZ cross section along the radiation incidence direction (Z direction) where the radiation 101 is incident. The length (in the X direction) (the length corresponding to the second length L2 in FIG. 2(c)) decreases, and the end portion on the side where the second length L2 is large and the bottom surface of the groove 110 It is formed in a triangular shape, and is arranged so that the two are in contact with each other. That is, as shown in FIG. 3A, the seal member 211a is formed in a triangular shape whose base is the bottom side of the groove 110 formed in the frame portion 102d included in the front cover 102b. The sealing member 211a shown in FIG. 3(a) is easily deformed even with a weaker pressing force than the oval-shaped sealing member 111 shown in FIG. It is possible to ensure sex.

In addition, in FIG. 3(b), the sealing member 211b is connected to the joint part (first joint part 1021 in FIG. 2(b)) with the back cover 102a in the frame part 102d included in the front cover 102b and the frame part in the back cover 102a. A portion corresponding to a waterproof portion (waterproof portion 711a in FIG. 9(b) to be described later) that is in close contact with a joint portion with portion 102d (second joint portion 1022 in FIG. 2(b)) is shown. Specifically, in FIG. 3(b), the sealing member 211b has a larger length in the X direction (the length corresponding to the second length L2 in FIG. 2(c)) and the groove 110. It is formed in a T-shape and is arranged so that it is in contact with the bottom surface. The sealing member 211b shown in FIG. 3(b) can be in close contact with the housing 102 with a weaker pressing force than the sealing member 211a shown in FIG. 3(a) without changing the ease of fitting into the groove 110. .

In the second embodiment, similarly to the first embodiment, the seal members 211a and 211b shown in FIG. 3 have a length in the Z direction (a length corresponding to the first length L1 in FIG. length) is larger than the length in the X direction (the length corresponding to the second length L2 in FIG. 2(c)).
According to this configuration, as in the first embodiment, it is possible to realize a lightweight and compact housing structure, and it is also possible to ensure stable waterproofness.

In this embodiment, as shown in FIG. 3, the groove 110 is provided at the joint portion of the frame portion 102d included in the front cover 102b with the back cover 102a. is not limited to this form. In the present invention, a configuration in which the groove 110 is provided at the joint portion of the back cover 102a with the frame portion 102d is also applicable. Furthermore, in the present invention, a configuration in which the groove 110 is provided at both the joint part of the frame part 102d included in the front cover 102b with the back cover 102a and the joint part of the back cover 102a with the frame part 102d is also applicable. It is possible. That is, in the present invention, the groove 110 is provided in at least one of the joint part of the frame part 102d included in the front cover 102b with the back cover 102a and the joint part of the back cover 102a with the frame part 102d. It would be fine if it was. Further, although FIG. 3 shows an example of a configuration in which the seal members 211a and 211b become thinner from the bottom side of the groove 110 toward the back cover 102a side, the present invention is not limited to this form. do not have.

(Third embodiment)
Next, a third embodiment of the present invention will be described. In addition, in the description of the third embodiment described below, descriptions of matters common to the first and second embodiments described above will be omitted, and matters different from the first and second embodiments described above will be omitted. I will explain about it.

The schematic configuration of the radiographic apparatus according to the third embodiment is similar to the schematic configuration of the radiographic apparatus 100 according to the first embodiment shown in FIG. 1 described above. The radiographic apparatus according to the third embodiment differs in its internal configuration from the radiographic apparatus 100 according to the first embodiment. Specifically, in the radiographic apparatus according to the third embodiment, the shape of the seal member 111 is different from that of the radiographic apparatus 100 according to the first embodiment shown in FIG. 2(b), and the other components are different from each other. The components are the same as those in FIG. 2(b).

FIG. 4 is a diagram showing only seal members 311a to 311c in the schematic configuration of a radiation imaging apparatus 300 according to the third embodiment of the present invention. The seal members 311a to 311c shown in FIGS. 4(a) to 4(c) have a gap provided at the bottom side that contacts the groove 110 provided in the housing 102.

FIG. 5 is a diagram showing an area corresponding to FIG. 2(c) in the schematic configuration of a radiation imaging apparatus 300 according to the third embodiment of the present invention. In FIG. 5, components similar to those shown in FIG. 2 are designated by the same reference numerals, and detailed description thereof will be omitted. Further, FIG. 5 illustrates an XYZ coordinate system corresponding to the XYZ coordinate system shown in FIG. 2(c).

Specifically, FIG. 5(a) shows the sealing member 311a in FIG. 2(b) and the second joint 1022). A sealing member 311a in FIG. 4(a) is a sealing member having an A-shaped cross section. As shown in FIG. 5A, when the seal member 311a of FIG. By providing a gap between the groove 110 and the bottom surface of the groove 110, buckling becomes less likely to occur.

In addition, FIG. 5(b) shows that the sealing member 311b of FIG. 4(b) is connected to the joint portion of the frame portion 102d (the first joint portion 1021 of FIG. 2(b)) and the joint portion of the back cover 102a (FIG. 2(b)). This is a form in which it is interposed between the second joint part 1022) of b). The seal member 311b in FIG. 4(b) shows a seal member having a V-shaped cross section. As shown in FIG. 5(b), when the sealing member 311b of FIG. 4(b) is accommodated in the groove 110, buckling is suppressed compared to the case of the sealing member 311a shown in FIG. 4(a). The structure is easily deformed.

In addition, FIG. 5(c) shows the sealing member 311c in FIG. This is a form in which it is interposed between the second joint part 1022) of b). A sealing member 311c in FIG. 4(c) has a cross-sectional shape shaped like a human character. As shown in FIG. 5(c), when the sealing member 311c of FIG. 4(c) is accommodated in the groove 110, it can be brought into close contact with the housing 102 with a weak pressing force without almost buckling.

Here, the sealing members 311a to 311c shown in FIGS. 5(a) to 5(c) are waterproof portions (see FIG. ) shows a portion corresponding to the waterproof portion 711a). The seal members 311a to 311c shown in FIGS. 5(a) to 5(c) are modified from the seal members 311a to 311c shown in FIGS. 4(a) to 4(c), respectively, due to the close contact. and is accommodated in the groove 110. In this embodiment, as shown in FIGS. 5(a) to 5(c), gaps are provided between the bottom surface of the groove 110 and the ends of the seal members 311a to 311c that contact the bottom surface. ing. As a result, even in a lightweight housing 102 with low rigidity, the sealing members 311a to 311c arranged so as to surround the sensor support base 104 can be prevented from buckling and deformed uniformly, resulting in more stable waterproofing. structure can be constructed.

In the third embodiment, similarly to the first embodiment, the seal members 311a to 311c shown in FIG. 5 have a length in the Z direction (a length corresponding to the first length L1 in FIG. length) is larger than the length in the X direction (the length corresponding to the second length L2 in FIG. 2(c)).
According to this configuration, as in the first embodiment, it is possible to realize a lightweight and compact housing structure, and it is also possible to ensure stable waterproofness.

(Fourth embodiment)
Next, a fourth embodiment of the present invention will be described. In addition, in the description of the fourth embodiment described below, descriptions of matters common to the first to third embodiments described above will be omitted, and matters different from the first to third embodiments described above will be omitted. I will explain about it.

The schematic configuration of the radiographic apparatus according to the fourth embodiment is similar to the schematic configuration of the radiographic apparatus 100 according to the first embodiment shown in FIG. 1 described above. The radiographic apparatus according to the fourth embodiment differs in its internal configuration from the radiographic apparatus 100 according to the first embodiment. Specifically, in the radiographic apparatus according to the fourth embodiment, the shapes of the frame portion 102d, the groove 110, and the seal member 111 are different from those of the radiographic apparatus 100 according to the first embodiment shown in FIG. 2(b). The other components are the same as those in FIG. 2(b).

FIG. 6 is a diagram showing an area corresponding to FIG. 2(c) in the schematic configuration of a radiation imaging apparatus 400 according to the fourth embodiment of the present invention. FIG. 6 shows an XYZ coordinate system corresponding to the XYZ coordinate system shown in FIG. 2(c). 6, a frame portion 402d corresponding to the frame portion 102d in FIG. 2(c), a groove 410 corresponding to the groove 110 in FIG. 2(c), and a seal corresponding to the sealing member 111 in FIG. 2(c) are shown. Member 411 is illustrated. Note that the seal member 411 shown in FIG. 6 corresponds to the T-shaped seal member 211b shown in FIG. 3(b).

As shown in FIG. 6(a), the groove 410 in the fourth embodiment has a V-shaped recess formed on the bottom surface of the groove 410. A gap is formed between the seal member 411 and the bottom surface of the seal member 411. FIG. 6A shows a configuration example in which a seal member 411 corresponding to the T-shaped seal member 211b shown in the second embodiment is fitted into the groove 410. Then, as shown in FIG. 6(b), when the back cover 102a is joined to the frame portion 402d and the seal member 411 is brought into close contact with the frame portion 402d and the back cover 102a, the seal member 411 is aligned along the groove 410. and transform. Therefore, similar to the third embodiment, the seal member 411 can be deformed with almost no buckling, and even a seal member with a simple cross-sectional shape with high formability can achieve the same effect as the third embodiment. can be obtained.

In the fourth embodiment, similarly to the first embodiment, the sealing member 411 shown in FIG. 6 has a length in the Z direction (a length corresponding to the first length L1 in FIG. 2(c)). is larger than the length in the X direction (the length corresponding to the second length L2 in FIG. 2(c)).
According to this configuration, as in the first embodiment, it is possible to realize a lightweight and compact housing structure, and it is also possible to ensure stable waterproofness.

(Fifth embodiment)
Next, a fifth embodiment of the present invention will be described. In addition, in the description of the fifth embodiment described below, descriptions of matters common to the first to fourth embodiments described above will be omitted, and matters different from the first to fourth embodiments described above will be omitted. I will explain about it.

The schematic configuration of the radiographic apparatus according to the fifth embodiment is similar to the schematic configuration of the radiographic apparatus 100 according to the first embodiment shown in FIG. 1 described above. The radiographic apparatus according to the fifth embodiment differs in its internal configuration from the radiographic apparatus 100 according to the first embodiment. Specifically, in the radiographic apparatus according to the fifth embodiment, the shapes of the frame portion 102d, the groove 110, and the seal member 111 are different from those of the radiographic apparatus 100 according to the first embodiment shown in FIG. 2(b). The other components are the same as those in FIG. 2(b).

FIG. 7 is a diagram showing an area corresponding to FIG. 2(c) in the schematic configuration of a radiation imaging apparatus 500 according to the fifth embodiment of the present invention. In FIG. 7, the back cover 102a is not shown in the area corresponding to FIG. 2(c). Further, FIG. 7 illustrates an XYZ coordinate system corresponding to the XYZ coordinate system shown in FIG. 2(c).

7(a) to 7(c), frame portions 502d1 to 502d3 corresponding to the frame portion 102d in FIG. 2(c), grooves 510a to 510c corresponding to the groove 110 in FIG. Sealing members 511a to 511c corresponding to the sealing member 111 of c) are illustrated. Note that the seal member 511a shown in FIG. 7(a) corresponds to the V-shaped seal member 311b shown in FIG. 4(b), and the seal member 511b shown in FIG. 7(b) corresponds to the V-shaped seal member 311b shown in FIG. This corresponds to the human character-shaped sealing member 311c shown in c). Further, the frame portion 502d3 shown in FIG. 7(c) corresponds to the frame portion 102d shown in FIGS. 2(b) and 2(c), and the groove 510c shown in FIG. 7(c) corresponds to the frame portion 102d shown in FIG. This corresponds to the groove 110 shown in FIGS. 2(b) and 2(c).

The groove 510a shown in FIG. 7(a) and the groove 510b shown in FIG. 7(b) are formed so that the size of the opening thereof is smaller (narrower) than the size of the bottom surface. Specifically, FIG. 7A shows a configuration when a sealing member 511a corresponding to the V-shaped sealing member 311b shown in the third embodiment is fitted into a groove 510a having a trapezoidal cross-sectional shape. An example is shown. Further, FIG. 7(b) shows a configuration example when a sealing member 511b corresponding to the human character-shaped sealing member 311c shown in the third embodiment is fitted into a groove 510b having a convex cross-sectional shape. ing. In either of the configuration examples shown in FIGS. 7(a) and 7(b), a back cover 102a (not shown) is joined to the frame portions 502d1 and 502d2, respectively, and seal members 511a and 511b are connected to the frame portion 502d1 and the back cover 102a. When the seal members 511a and 511b are brought into close contact with the cover 102a, the seal members 511a and 511b deform while being restricted by the side surfaces of the grooves 510a and 510b, respectively, so that the seal members 511a and 511b are difficult to fall down. If even a part of the sealing member collapses, a gap will be created between the joint surface of the casing and the sealing member, so by creating the structure as shown in Figures 7(a) and 7(b), stable waterproofing can be achieved. It is possible to ensure sex.

Further, FIG. 7(c) shows that, as a configuration of the seal member 511c (more specifically, the waterproof portion of the seal member 511c), a fall prevention portion 5111 is formed at a position between the opening of the groove 510c and the bottom surface. This is an example of a configuration. Specifically, the fall prevention portion 5111 is formed so as to be in contact with the opening surface of the groove 510c. In the case of the configuration example shown in FIG. 7(c), the back cover 102a (not shown) is joined to the frame portion 502d3 and sealed, similarly to the configuration examples shown in FIGS. 7(a) and 7(b). When the member 511c is brought into close contact with the frame portion 502d3 and the back cover 102a, the sealing member 511c can deform while being regulated by the side surface of the groove 510c. In the configuration example shown in FIG. 7(c), the opening surface of the groove 510c is larger than the opening surface of the groove 510a in FIG. 7(a) and the opening surface of the groove 510b in FIG. 7(b). Compared to the configuration example shown in FIG. 7(b), the seal member 511 can be easily fitted, and the same effect can be obtained.

In the fifth embodiment, similarly to the first embodiment, the seal members 511a to 511c shown in FIG. 7 have a length in the Z direction (a length corresponding to the first length L1 in FIG. length) is larger than the length in the X direction (the length corresponding to the second length L2 in FIG. 2(c)).
According to this configuration, as in the first embodiment, it is possible to realize a lightweight and compact housing structure, and it is also possible to ensure stable waterproofness.

(Sixth embodiment)
Next, a sixth embodiment of the present invention will be described. In addition, in the description of the sixth embodiment described below, descriptions of matters common to the first to fifth embodiments described above will be omitted, and matters different from the first to fifth embodiments described above will be omitted. I will explain about it.

The schematic configuration of the radiographic apparatus according to the sixth embodiment is similar to the schematic configuration of the radiographic apparatus 100 according to the first embodiment shown in FIG. 1 described above. The radiographic apparatus according to the sixth embodiment differs in its internal configuration from the radiographic apparatus 100 according to the first embodiment. Specifically, in the radiographic apparatus according to the sixth embodiment, the shape of the seal member 111 is different from that of the radiographic apparatus 100 according to the first embodiment shown in FIG. 2(b), and the other components are different from each other. The components are the same as those in FIG. 2(b).

FIG. 8 is a diagram showing an area including an area corresponding to FIG. 2(c) in the schematic configuration of a radiographic apparatus 600 according to the sixth embodiment of the present invention. In FIG. 8, components similar to those shown in FIG. 2 are designated by the same reference numerals, and detailed description thereof will be omitted. Further, FIG. 8 illustrates an XYZ coordinate system corresponding to the XYZ coordinate system shown in FIG. 2(c).

Specifically, FIG. 8(a) shows a configuration in which a sealing member 611 according to the sixth embodiment is fitted into a groove 110 provided in a frame portion 102d that constitutes a casing 102 having a three-dimensional shape. An example is shown. Further, FIG. 8(b) is a diagram showing a BB cross section at a flat portion of the three-dimensionally shaped housing 102 (frame portion 102d) shown in FIG. 8(a). Further, FIG. 8(c) is a diagram showing a CC cross section at the inclined portion of the casing 102 (frame portion 102d) having a three-dimensional shape shown in FIG. 8(a).

As shown in FIGS. 8(b) and 8(c), the sealing member 611 (more specifically, the waterproof portion of the sealing member 611) The lengths (lengths corresponding to the first length L1 in FIG. 2(c)) are not uniform but different. Specifically, the sealing member 611 (more specifically, the waterproof portion of the sealing member 611) has a length in the Z direction (a length corresponding to the first length L1 in FIG. 2(c)) as shown in FIG. The sloped portion of the casing 102 shown in FIG. 6(c) is larger than the flat portion of the casing 102 shown in FIG. 6(b). In this embodiment, in the inclined part of the casing 102 shown in FIG. 8(c), gaps are likely to occur if the machining accuracy of the joint surface of the casing 102 is low. ) The height of the sealing member 611 is made higher than in the case of the flat part of the housing 102 shown in FIG. According to this configuration, even if the housing 102 has a complicated three-dimensional shape, stable waterproofness can be ensured. Therefore, for example, functions that improve usability such as an LED display or a switch are installed on the side of the housing 102. configuration can be arranged.

In the sixth embodiment, similarly to the first embodiment, the sealing member 611 shown in FIG. 8 has a length in the Z direction (a length corresponding to the first length L1 in FIG. 2(c)). is larger than the length in the X direction (the length corresponding to the second length L2 in FIG. 2(c)).
According to this configuration, as in the first embodiment, it is possible to realize a lightweight and compact housing structure, and it is also possible to ensure stable waterproofness.

(Seventh embodiment)
Next, a seventh embodiment of the present invention will be described. In addition, in the description of the seventh embodiment described below, descriptions of matters common to the first to sixth embodiments described above will be omitted, and matters different from the first to sixth embodiments described above will be omitted. I will explain about it.

The schematic configuration of the radiographic apparatus according to the seventh embodiment is similar to the schematic configuration of the radiographic apparatus 100 according to the first embodiment shown in FIG. 1 described above. The radiographic apparatus according to the seventh embodiment differs in its internal configuration from the radiographic apparatus 100 according to the first embodiment. Specifically, in the radiographic apparatus according to the seventh embodiment, the shapes of the frame portion 102d, the groove 110, and the seal member 111 of the radiographic apparatus 100 according to the first embodiment shown in FIG. They are different forms.

FIG. 9 is a diagram showing an example of the internal configuration of a radiation imaging apparatus 700 according to the seventh embodiment of the present invention. FIG. 9(a) shows a state in which the back cover 102a shown in FIGS. 1 and 2 is removed from the radiation imaging apparatus 700, and then the seal member 711 shown in FIG. 9(b) is removed. It is a view seen from the side opposite to the incident side. Further, FIG. 9(b) is a view of the radiation imaging apparatus 700 with the back cover 102a shown in FIGS. 1 and 2 removed, and this state is viewed from the side opposite to the side on which the radiation 101 is incident. That is, FIG. 9(b) is a diagram showing a state in which the seal member 711 is fitted into the groove 710, compared to the state shown in FIG. 9(a).

As shown in FIGS. 9(a) and 9(b), the sensor support base 104 has a rectangular shape when viewed from the direction of incidence of the radiation 101 (from FIG. 2(b), the same applies to the radiation detection panel 103) A plurality of FPCs 105 are connected to at least two sides of. As shown in FIG. 2(b), the other end of the FPC 105 is connected to a circuit board 106 disposed on the surface of the sensor support base 104 opposite to the incident direction of the radiation 101. As shown in FIGS. 9A and 9B, this circuit board 106 includes a drive circuit board 106a that supplies drive signals to the radiation detection panel 103, and a readout circuit that reads out electrical signals from the radiation detection panel 103. A substrate 106b is arranged around the periphery of the radiation detection panel 103. Further, the readout circuit board 106b is connected to a control circuit board 106c that supplies a control signal from the outside and a power supply circuit board 106d that supplies transformed power from a battery 107, respectively, by a flexible flat cable (FFC) 108. There is. The external control PC is connected with a wired cable through an external connector 109 shown in FIG. They are connected via wireless communication via a wireless circuit board 106e mounted on the.

As shown in FIG. 9(a), a seamless continuous groove 710 is formed in a frame portion 702d corresponding to the frame portion 102d shown in FIGS. 1 and 2 so as to surround the sensor support base 104. . As shown in FIG. 9(a), the groove 710 includes a waterproof groove part 710a, a catch groove part 710b, and a twist suppression groove part 710c. In accordance with the shape of the groove 710, the seal member 711 is also configured to have a waterproof portion 711a, a catch portion 711b, and a torsion suppressing portion 711c, as shown in FIG. 9(b). It's embedded.

The waterproof portion 711a of the seal member 711 is in close contact with the first joint 1021 of the front cover 102b shown in FIG. 2(b) including the frame portion 702d and the second joint 1022 of the back cover 102a shown in FIG. 2(b). to form a waterproof structure. The hanging portion 711b of the seal member 711 is a portion for positioning the waterproof portion 711a, and has a ring-shaped portion as shown in FIG. 9(b). The twist suppressing portion 711c of the seal member 711 is a portion for suppressing twisting of the waterproof portion 711a. In the example shown in FIG. 9, the waterproof portion 711a of the seal member 711 is fitted into the waterproof groove 710a, the catch portion 711b of the seal member 711 is fitted into the catch groove 710b, and the torsion suppressing portion 711c of the seal member 711 is fitted into the twist suppressing groove 710c. be fitted into.

In the case of a ring-shaped sealing member having only a general waterproofing part, without the hanging part 711b or twisting suppressing part 711c shown in FIG. 9(b), twisting etc. easily occur when fitting it into the groove. There is a risk that a gap may be formed between the seal member and the groove. In addition, when fitting a sealing member into a groove with a curved path such as a corner, the sealing member may float out of the groove, and there is a risk that the part that has come out of the groove may be caught when the back cover 102a is assembled. There is. In this embodiment, in order to eliminate such problems, a plurality of catch parts 711b and twist suppressing parts 711c are provided as the seal member 711, thereby preventing the seal member 711 from floating or misaligning from the groove 710, and preventing the seal member 711 from being lifted or displaced from the groove 710. It was possible to suppress twisting, etc. Thereby, stable waterproofness can be ensured in the radiographic apparatus 700 having the radiation detection panel 103.

FIG. 10 shows a seventh embodiment of the present invention, and is a partially enlarged view and a sectional view of a region 730 including an outer periphery 731 of a frame portion 702d shown in FIG. 9(b). Specifically, FIG. 10(a) is a partially enlarged view of a region 730 including the outer periphery 731 of the frame portion 702d shown in FIG. 9(b), and FIG. -D sectional view. Note that in FIG. 10, the same components as those shown in FIG. 9 are denoted by the same reference numerals, and detailed explanation thereof will be omitted.

As shown in FIG. 10(a), the seal member 711 in the seventh embodiment is located at a location where the amount of deformation is the smallest when the joint surface of the housing 102 and the waterproof portion 711a of the seal member 711 come into close contact. , a catch portion 711b and a twist suppressing portion 711c are provided. In this way, by minimizing the deformation of the hanging portion 711b and the twisting suppressing portion 711c of the sealing member 711, it is possible to sufficiently position the sealing member 711 and suppressing twisting, while ensuring high waterproofness. can do.

Further, as shown in FIG. 10(b), in the sealing member 711 according to the seventh embodiment, the torsion suppressing portion 711c is longer than the center of the length of the waterproof portion 711a in the radiation incident direction (Z direction) in the XZ cross section. It is arranged on the bottom side of the groove 710. In addition, in this embodiment, instead of or in addition to the twist suppressing part 711c, the hanging part 711b is located at a position that is longer than the center of the length of the waterproof part 711a in the radiation incident direction (Z direction) in the XZ cross section. It may be arranged on the bottom side of the groove 710. Further, in the present embodiment, at least one of the hanging portion 711b and the twisting suppressing portion 711c of the sealing member 711 may function as a fall prevention portion of the waterproof portion 711a.

In the seventh embodiment, similarly to the first embodiment, the sealing member 711 shown in FIG. 10(b) has a length in the Z direction (corresponding to the first length L1 in FIG. 2(c)). length) is larger than the length in the X direction (the length corresponding to the second length L2 in FIG. 2(c)).
According to this configuration, as in the first embodiment, it is possible to realize a lightweight and compact housing structure, and it is also possible to ensure stable waterproofness.

The embodiments of the present invention described above are merely examples of implementation of the present invention, and the technical scope of the present invention should not be construed as limited by these. It is. That is, the present invention can be implemented in various forms without departing from its technical idea or main features.

100: Radiography device, 101: Radiation, 102: Housing, 102a: Back cover, 102b: Front cover, 102c: Top plate section, 102d: Frame section, 103: Radiation detection panel, 103a: Detector, 103b: Fluorescence body, 104: sensor support base, 105: flexible printed wiring (FPC), 106: circuit board, 109: external connector, 110: groove, 111: sealing member, 120: cushioning material

Claims (10)

A radiation detection panel that detects incident radiation and converts it into an image signal,
It is configured to include a first housing member located on the side where the radiation enters, and a second housing member located on the opposite side to the side where the radiation enters, and outside the peripheral edge of the radiation detection panel. a housing that accommodates the radiation detection panel therein by joining the first housing member and the second housing member;
a sealing member interposed between a first joint portion that is the joining portion of the first housing member and a second joint portion that is the joining portion of the second housing member;
has
At least one of the first joint part and the second joint part is provided with a groove matching the shape of the sealing member,
The sealing member includes a waterproof portion that comes into close contact with the first joint portion and the second joint portion,
The waterproof portion has a first length along the incident direction of the radiation that is larger than a second length that is perpendicular to the incident direction , and A radiation imaging apparatus characterized in that one end of the ends in a direction perpendicular to the incident direction contacts a part of the bottom surface of the groove to form a gap with the bottom surface. The waterproof portion of the seal member has a length that increases from one of the first housing member to the second housing member as it approaches the other housing member. 2. The radiographic apparatus according to claim 1, wherein the radiographic apparatus is configured to have a shape such that . 3. The waterproof portion of the sealing member is arranged such that the end of the second longer length is in contact with a part of the bottom surface of the groove. The radiographic apparatus described in . The radiographic apparatus according to any one of claims 1 to 3 , wherein the groove has an opening size smaller than a bottom surface size. A radiation detection panel that detects incident radiation and converts it into an image signal,
It is configured to include a first housing member located on the side where the radiation enters, and a second housing member located on the opposite side to the side where the radiation enters, and outside the peripheral edge of the radiation detection panel. a housing that accommodates the radiation detection panel therein by joining the first housing member and the second housing member;
a sealing member interposed between a first joint portion that is the joining portion of the first housing member and a second joint portion that is the joining portion of the second housing member;
has
At least one of the first joint part and the second joint part is provided with a groove matching the shape of the sealing member,
The sealing member includes a waterproof portion that comes into close contact with the first joint portion and the second joint portion,
The waterproof portion has a first length along the incident direction of the radiation that is larger than a second length that is perpendicular to the incident direction, and the waterproof portion has a first length along the incident direction of the radiation, and a second length that is the length in the direction perpendicular to the incident direction. A radiation imaging apparatus characterized by having a fall prevention part at a position between the bottom surface and the bottom surface. A radiation detection panel that detects incident radiation and converts it into an image signal,
It is configured to include a first housing member located on the side where the radiation enters, and a second housing member located on the opposite side to the side where the radiation enters, and outside the peripheral edge of the radiation detection panel. a housing that accommodates the radiation detection panel therein by joining the first housing member and the second housing member;
a sealing member interposed between a first joint portion that is the joining portion of the first housing member and a second joint portion that is the joining portion of the second housing member;
has
At least one of the first joint part and the second joint part is provided with a groove matching the shape of the sealing member,
The sealing member includes a waterproof portion that comes into close contact with the first joint portion and the second joint portion,
The waterproof portion has a first length along the incident direction of the radiation that is larger than a second length that is perpendicular to the incident direction, and a longitudinal length of the sealing member. A radiation imaging apparatus characterized in that the first length is different between a first region and a second region in a direction . The radiography according to claim 6 , wherein the first region is a region corresponding to a flat portion of the casing, and the second region is a region corresponding to a sloped portion of the casing. Device. In addition to the waterproof portion, the seal member includes a catch portion for positioning the waterproof portion, and a torsion suppressing portion for suppressing twisting of the waterproof portion,
The radiographic apparatus according to any one of claims 1 to 7 , wherein the groove has a shape that matches the shape of the waterproof part, the catch part, and the twisting suppressing part of the sealing member. 9. The radiation according to claim 8 , wherein the hook part or the twist suppressing part of the sealing member is arranged closer to the bottom surface of the groove than the center of the waterproof part in the incident direction. Photography equipment. The radiation imaging apparatus according to claim 8 or 9 , wherein the hanging portion or the twisting prevention portion of the sealing member also functions as a fall prevention portion of the waterproof portion.