KR102420540B1 - Cover for x-ray detector and x-ray detector having the same - Google Patents

Abstract

A cover for an X-ray detector and an X-ray detector including the same are disclosed. A cover for an X-ray detector according to an embodiment of the present invention includes a single-layered core material, a first reinforcing panel bonded to one surface of the core material, a second reinforcing panel bonded to the other surface of the core material, and the second It is characterized in that it includes a conductive thin plate bonded to one surface of the reinforcing panel.

Description

COVER FOR X-RAY DETECTOR AND X-RAY DETECTOR HAVING THE SAME

The present invention relates to a cover for an X-ray detector mounted on an X-ray detector, and more particularly, to a cover for an X-ray detector that has a sandwich structure and has sufficient strength and is advantageous for device weight reduction, and an X-ray detector including the same .

In general, an X-ray imaging system is largely composed of an X-ray generator and an X-ray detector. The X-ray generator generates X-rays and irradiates the generated X-rays toward the subject on the X-ray detector, and the X-ray detector reacts to the X-rays passing through the subject. The image data is obtained by converting the generated light (visible light) into an electric (charge) signal.

Among the X-ray imaging systems, an X-ray detector generally includes an image sensor unit, an electronic circuit board, and an automatic exposure request signal generator, and the image sensor unit is a scintillator composed of materials that react to X-rays passing through the subject. (Scintillator) and an image detection unit for detecting light (visible light) generated from the scintillator, and a gate driver, a readout unit, and the like.

As described above, the scintillator is composed of a fluorescent material that generates light (visible light) in response to X-rays that have passed through the subject. visible light), and the image detector converts the light (visible light) converted by the scintillator into an electric signal to obtain image data.

The image detector is generally referred to as a photoelectric conversion panel, and converts the light (visible light) converted by the scintillator into an electric signal and outputs it. The image detector generally includes a plurality of pixels arranged in a matrix form, and charges proportional to the amount of visible light generated by the scintillator to each pixel.

The gate driver performs an operation of sequentially selecting a specific line of the image detection unit and applying a driving signal under the control of a control unit (not shown), and the readout unit applies a driving signal to a specific line of the image detection unit by the gate driving unit When done, it reads the charge value charged in each pixel of the line.

In addition, the X-ray detector includes a cover (Cover). The cover is spaced apart with a predetermined gap in front of the image sensor unit including the scintillator and the image detection unit (photoelectric conversion panel) based on the traveling direction of X-rays irradiated from the X-ray generator to cover the image sensor unit. It protects the sensor unit and serves to support the subject.

Therefore, the cover must have sufficient durability to withstand the impact or load without breakage or plastic deformation even when a significant level of external impact or load is applied. In addition, since the X-rays are disposed in front of the image sensor unit based on the traveling direction of the X-rays, the X-rays must be completely transmitted to the image sensor unit without distortion.

Most of the covers applied to conventional X-ray detectors are made of a single material of carbon fiber reinforced plastic (hereinafter referred to as 'CFRP' for convenience). The reason CFRP is used as a material for the cover is because of the unique material properties of CFRP that can transmit X-rays while having a significantly higher strength compared to other composite resins of the same thickness.

However, if the cover is composed of CFRP alone, there is a limit to reducing the weight while maintaining adequate strength due to the characteristics of the material. Therefore, there is a problem that it is not easy to respond to the market's demand for weight reduction for X-ray detectors, and if the carbon fibers are not evenly distributed throughout the thickness direction, the image quality may be poor, such as uneven patterns appearing in the photographed image.

Japanese Patent No. 6099620

The present invention is composed of a sandwich structure using a lightweight material such as PET (Polyethylene terephthalate) foam as an intermediate material, so that it has sufficient strength to satisfy the load-bearing condition required for an X-ray detector, and it can meet the demand for weight reduction. An object of the present invention is to provide a cover for an X-ray detector and an X-ray detector including the same.

In addition, the present invention can reduce the amount of CFRP by using a lightweight material such as PET foam as an intermediate material, thereby reducing the cost and improving the image defect problem. The purpose is to provide a detector.

A cover for an X-ray detector according to an embodiment of the present invention includes a single-layered core material, a first reinforcing panel bonded to one surface of the core material, a second reinforcing panel bonded to the other surface of the core material, and the second It is characterized in that it includes a conductive thin plate bonded to one surface of the reinforcing panel.

Preferably, the first reinforcing panel, the second reinforcing panel, and the core material are made of a composite resin material that can transmit X-rays, and the thickness of the first reinforcing panel and the second reinforcing panel is equal to the thickness of the core material. The same or thinner, thicker than the conductive thin plate or characterized in that the same thickness as the conductive thin plate.

Preferably, the core material is PET foam, and the first reinforcing panel and the second reinforcing panel are CFRP.

Preferably, it characterized in that it further comprises an edge reinforcement disposed to surround the core material on the same plane as the core material.

Preferably, the edge reinforcing part is disposed between the first reinforcing panel and the second reinforcing panel, and has the same thickness as the core material.

Preferably, the edge reinforcement part is characterized in that it is bonded to the core material outside the area through which the X-rays are transmitted.

Preferably, a hole through which the fastening member is inserted is formed through the first reinforcing panel, the edge reinforcing part, the second reinforcing panel, and the conductive thin plate.

Preferably, a stepped portion on which the head portion of the fastening member is seated is formed in a portion of the edge reinforcement portion.

A cover for an X-ray detector according to another embodiment of the present invention includes a core material having a multilayer sandwich structure, a first reinforcing panel bonded to one surface of the core material, a second reinforcing panel bonded to the other surface of the core material, and the second reinforcing panel 2 It is characterized in that it comprises a conductive thin plate bonded to one surface of the reinforcing panel, the core material includes a plurality of core material layers formed in multiple layers, and one reinforcing panel is disposed between the adjacent core material layers.

Preferably, the first reinforcing panel, the second reinforcing panel and the core material are made of a composite resin material through which X-rays are transmitted, and the thickness of the first reinforcing panel and the second reinforcing panel is the thickness of the core material layer. The same as or thinner, thicker than the conductive thin plate, or characterized in that the same thickness as the conductive thin plate.

Preferably, the core material includes a first core material layer to which the first reinforcing panel is bonded to one surface and a second core material layer to which the second reinforcement panel is bonded to one surface, and the first core material layer and the second A third reinforcing panel is formed between the core layers.

Preferably, the first core layer and the second core layer constituting the core material are PET foam, and the first reinforcing panel, the second reinforcing panel and the third reinforcing panel are CFRP.

Preferably, the thickness of the first reinforcing panel, the second reinforcing panel, and the third reinforcing panel is the same as or thinner than the thickness of the first core layer and the second core layer.

Preferably, the apparatus further comprises a multi-layered edge reinforcement part disposed between the first reinforcement panel and the second reinforcement panel, wherein the edge reinforcement part surrounds the first core material layer on the same plane as the first core material layer. and a second reinforcing layer disposed to surround the second reinforcing layer on the same plane as the first reinforcing layer and the second reinforcing layer, wherein a third reinforcing panel is disposed between the first reinforcing layer and the second reinforcing layer. It is characterized in that it is placed.

Preferably, the first reinforcing layer has the same thickness as the first reinforcing layer, and the second reinforcing layer has the same thickness as the second reinforcing layer.

Preferably, the first reinforcing layer is bonded to the first core layer outside the area through which the X-rays are transmitted, and the second reinforcing layer is bonded to the second core layer outside the area through which the X-rays are transmitted. characterized by being

The X-ray detector according to an embodiment of the present invention includes a case of an enclosure structure with one side open, a cover for the X-ray detector coupled to the case, and a substrate seating protrusion on the upper surface of the back plate constituting the case. A substrate unit supported while being spaced apart from a plate, a panel unit disposed between the cover for the X-ray detector and the substrate unit, and acquiring image information from X-rays passing through the cover for the X-ray detector, and the panel unit and a spacer disposed between the substrate unit.

Preferably, the cover for the X-ray detector includes a core material, a first reinforcement panel bonded to one surface of the core material, a second reinforcement panel bonded to the other surface of the core material, and one surface of the second reinforcement panel. It is characterized in that it includes a conductive thin plate.

Preferably, the first reinforcing panel, the second reinforcing panel, and the core material are made of a composite resin material that can transmit X-rays, the core material is PET foam, and the first reinforcing panel and the second reinforcing panel are It is characterized in that it is CFRP.

Preferably, it further comprises an edge reinforcement part disposed to surround the core member on the same plane as the core member, wherein the edge reinforcement part is disposed between the first reinforcement panel and the second reinforcement panel.

Preferably, the edge reinforcement part is characterized in that it is bonded to the core material outside the area through which the X-rays are transmitted.

Preferably, a hole through which a fastening member is inserted is formed through the first reinforcing panel, the edge reinforcing part, the second reinforcing panel and the conductive thin plate, and a portion of an edge of the cover for the X-ray detector through the hole. is fixed to the assembly step formed in the case with the fastening member.

Preferably, the spacer is characterized in that the EPP.

According to the cover for an X-ray detector according to an embodiment of the present invention, it is a sandwich structure using a lightweight material such as PET foam having a predetermined thickness as an intermediate material, and the overall weight is reduced while maintaining the strength compared to the conventional configuration of a CFRP single material. This can be significantly reduced, resulting in cost savings.

In addition, since CFRP is arranged in a relatively thin thickness above and below the core made of PET foam, which is an intermediate material, the CFRP pattern is reduced during X-ray transmission, so the conventional image quality problem caused by the distribution of carbon fibers is greatly improved. can do.

In addition, in the case of the embodiment in which the core material is composed of a multilayer sandwich structure, the thickness of the CFRP disposed above and below the core material is made thinner, and the CFRP having the same thickness as the CFRP disposed above and below the core material is additionally placed in the middle of the core material. Not only can the thickness be reduced, but the overall weight of the X-ray detector can be further reduced due to the CFRP dispersion effect.

In addition, in the case of an embodiment in which a single or multi-layer CFRP is disposed on the edge of the cover for the X-ray detector in a form surrounding the outer surface of the core, the layers inside the core near the bolt are separated when the X-ray detector falls or side impact can prevent it from happening.

In addition, in the case of the X-ray detector to which the cover for the X-ray detector according to the embodiment of the present invention is applied, as much as the spacer and the substrate unit are mutually coupled in a form in which a part (or all) of the substrate unit is accommodated in the substrate receiving part of the spacer The overall thickness of the panel assembly may be reduced, and accordingly, device slimming may be achieved.

In addition, in the case of an X-ray detector with a draw bar, it is possible to place the spacer stably inside the case without fixing the spacer to the case using a separate fixing device or configuration, and the assembly process is simplified as there is no need for a separate fixing device or configuration. It can be shortened, which has an advantageous effect in terms of productivity.

1 is an exploded perspective view of an X-ray detector to which a cover for an X-ray detector according to an embodiment of the present invention is applied.
FIG. 2 is an exploded perspective view of the panel assembly shown in FIG. 1 ;
Figure 3 is a schematic cross-sectional view showing the coupling state of the X-ray detector shown in Figure 1.
4 is a schematic cross-sectional view showing a first embodiment of the cover for the X-ray detector shown in FIG.
5 is a schematic cross-sectional view showing a coupling state in the first embodiment of the cover for the X-ray detector (enlarged view of part A in FIG. 3).
6 is an exploded perspective view of the cover for the X-ray detector shown in FIG.
7 is a schematic cross-sectional view showing a second embodiment of the cover for the X-ray detector shown in FIG.
8 is an exploded perspective view of the cover for the X-ray detector shown in FIG.
9 is a schematic cross-sectional view showing a third embodiment of the cover for the X-ray detector shown in FIG.
10 is a schematic cross-sectional view showing a fourth embodiment of the cover for the X-ray detector shown in FIG.
11 is a schematic cross-sectional view showing the coupling state of the X-ray detector in another embodiment.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

Terms used in the specification are used only to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. As used herein, terms such as “comprise” or “have” are intended to designate that a feature, number, step, action, component, part, or combination thereof described in the specification is present, and includes one or more other features or It should be understood that the existence or addition of numbers, steps, operations, components, parts, or combinations thereof does not preclude the possibility of addition.

Also, terms such as first, second, etc. may be used to describe various elements, but the elements should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another.

In addition, terms such as “…unit”, “…unit”, “…module”, etc. described in the specification mean a unit that processes at least one function or operation, which may be implemented by hardware or software or a combination of hardware and software. can

In the description with reference to the accompanying drawings, the same reference numerals will be given to the same components to the same drawings, and overlapping descriptions thereof will be omitted. And, in the description of the present invention, if it is determined that a detailed description of a related known technology may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted.

Hereinafter, an X-ray detector 1 including a cover 30 for an X-ray detector and a cover 30 for an X-ray detector according to an embodiment of the present invention will be disclosed with reference to FIGS. 1 to 11 .

1 is an exploded perspective view of an X-ray detector 1 to which a cover 30 for an X-ray detector according to an embodiment of the present invention is applied, and FIG. 2 is an exploded perspective view of the panel assembly 20 shown in FIG. And Figure 3 is a schematic cross-sectional view showing the coupling state of the X-ray detector (1) shown in Figure 1.

1 to 3 , the X-ray detector 1 converts light (visible light) emitted by a phosphor in response to X-rays passing through an object (not shown) into an electrical (charge) signal to convert image data. As an acquisition device, it includes a case 10 having an enclosure (eg, a rectangular box) structure with one side open. A component mounting space 11 is formed inside the case 10 , and the panel assembly 20 is installed in the component mounting space 11 .

The case 10 is installed so as to be in contact with the lower end of the frame 12 composed of a plurality of side supporters 120 and the side supporters 120 of the frame 12 to constitute the bottom surface of the case 10 . (14) may consist of. In an embodiment of the present invention, the plurality of side supporters 120 may constitute a side surface of the case 10 .

The cover 30 for the X-ray detector is installed on one open side of the case 10 , and the panel assembly 20 may be disposed between the cover 30 for the X-ray detector and the back plate 14 . As an example, the cover 30 for the detector may have a rectangular flat plate structure. However, the structure of the cover 30 for the detector is not limited to a rectangular shape, and various modifications such as a curved structure are possible.

Referring to FIG. 1 , a rear finishing panel 50 may be attached to the rear surface of the case 10 , and a battery mounting space (not shown) partitioned in the case 10 may be supplied to a substrate unit 26 to be described later. A battery 60 for storing electrical energy may be mounted.

In addition, the X-ray detector 1 further includes a battery cover 62 for covering the battery mounting space and a finishing film 64 attached to the external exposed surface of the battery cover 62 .

As shown in FIGS. 2 and 3 , the panel assembly 20 includes a substrate unit 26 disposed adjacent to the back plate 14 and a panel unit 22 disposed relatively far from the back plate 14 . include In addition, the panel assembly 20 may include a spacer 24 interposed between the substrate unit 26 and the panel unit 22 to maintain a gap therebetween. The substrate unit 26 may receive an external electrical signal and generate a control signal, and the panel unit 22 may be operated based on the generated control signal.

The panel unit 22 may include a scintillator 220 , a photoelectric conversion panel 222 , and a radiation shielding plate 224 disposed under the photoelectric conversion panel 222 . As an example, the radiation shielding plate 224 may be made of lead (Pb).

The scintillator 220 is composed of fluorescent materials that emit light (visible light) in response to X-rays passing through the subject, and the photoelectric conversion panel 222 emits the light (visible light) generated by the scintillator 220 . It can be output by converting it into an electric (charge) signal.

The photoelectric conversion panel 222 includes photoelectric conversion elements (not shown) in a photodiode-based matrix array and a switch element (not shown) for controlling conduction between the photoelectric conversion elements. As an example, the switch element includes a thin film transistor (TFT).

When the substrate unit 26 is driven, the drive chip mounted on the substrate unit 26 sequentially selects a specific line of the photoelectric conversion panel 222 to apply a driving signal, and when the driving signal is applied, Image information may be generated based on a charge value of the photoelectric conversion element.

As shown in FIG. 3 , the substrate unit 26 may be supported while being spaced apart from the back plate 14 through the substrate seating protrusion 140 on the upper surface of the back plate 14 constituting the case 10 . have.

Preferably, the substrate unit 26 is mounted on the substrate seating protrusion 140 by a fastening member (not shown) inserted from the lower surface of the back plate 14 of the case 10 and fastened to the substrate seating protrusion 140 . It can be stably fixed without shaking. As an example, the fastening member may be a bolt.

The panel unit 22 is seated on an upper surface of the spacer 24 interposed between the substrate unit 26 and the panel unit 22 to maintain a gap between the substrate unit 26 and the panel unit 22 , and the substrate unit 26 is adhered to the lower surface of the spacer 24 . can At this time, as shown in FIGS. 2 and 3 , the surface of the spacer 24 (the lower surface of the spacer 24 ) facing the substrate unit 26 has a size and a predetermined size corresponding to the shape of the substrate unit 26 . The substrate receiving part 240 having a depth may be engraved.

A part or all of the substrate unit 26 is accommodated in the substrate accommodating part 240 , so that the substrate unit 26 is inserted into the spacer 24 , and thus the spacer 24 is connected to the case 10 . ) can be stably fixed within the In addition, since a part or all of the substrate unit 26 is accommodated in the substrate accommodating part 240 , the overall thickness of the panel assembly 20 is reduced as much as the substrate unit 26 is accommodated in the substrate accommodating part 240 , making the device slimmer. can be configurable.

As an example, the spacer 24 may be a material capable of stably supporting the panel unit 22 and having sufficient heat resistance against heat generated by the substrate unit 26 while satisfying device weight reduction. Preferably, the spacer 24 is expanded polypropylene (EPP) or terephthalic acid and ethylene glycol, which are sphere-shaped particles obtained by physically foaming polypropylene without using a chemical foaming agent. ) may be a saturated polyester resin obtained by the synthesis of PET foam, and may be formed to a thickness of about 4 to 6 mm.

The X-ray detector 1 according to an embodiment of the present invention includes a cover 30 for the X-ray detector. Referring to FIG. 1 , the cover 30 for the X-ray detector is the front (upper part) of the panel unit 22 of the above-described panel assembly 20 based on the traveling direction of X-rays irradiated from the X-ray generator (not shown). ) to be spaced apart from each other at a predetermined distance to cover the panel unit 22 , thereby protecting the panel unit 22 from the outside and supporting the subject.

The cover 30 for the X-ray detector may be coupled to the open end side of the case 10 through the side support 120 described above. As shown in FIG. 3 , the cover 30 for the X-ray detector has a form in which a portion of the edge of the cover 30 for the X-ray detector is seated and fixed on the assembly step 122 formed inside the upper end of the side supporter 120 . It may be coupled to the furnace case 10 . As an example, the cover 30 for the X-ray detector may be firmly fixed to the assembly step 122 with a fastening member (bolt, etc.).

The cover 30 for the X-ray detector should have sufficient durability to withstand the impact or load without damage or plastic deformation even when a significant level of external impact or load is applied. In addition, since the cover 30 for the X-ray detector is disposed in front of the panel unit 22 corresponding to the image sensor unit based on the direction in which the X-rays travel, the X-rays can be completely transmitted to the panel unit 22 without distortion. there should be

On the other hand, when the cover is composed of CFRP alone as in the prior art, there is a limit in reducing the weight while maintaining appropriate strength due to the characteristics of the material. Therefore, there is a problem that it is not easy to respond to the market's demand for weight reduction for X-ray detectors, and if the carbon fibers are not evenly distributed throughout the thickness direction, the image quality may be poor, such as uneven patterns appearing in the photographed image.

The cover 30 for the X-ray detector applied to the X-ray detector 1 of the present invention is made of a lightweight material such as PET foam, which is a saturated polyester resin obtained by the synthesis of terephthalic acid and ethylene glycol, as an intermediate material. It may be a sandwich structure in which CFRP of a relatively thin thickness is used as an intermediate material and placed above and below the intermediate material. Therefore, it is possible to meet the requirements for device weight reduction while having sufficient strength to satisfy the load-bearing conditions required by the X-ray detector 1 .

A first embodiment of the cover 30 for an X-ray detector of a sandwich structure applied to the X-ray detector 1 of the present invention will be described in more detail with reference to FIGS. 4 to 6 below.

4 is a schematic cross-sectional view showing a first embodiment of the cover 30 for an X-ray detector shown in FIG. 3, and FIG. 5 is a schematic view showing the coupling state in the first embodiment of the cover 30 for the X-ray detector It is a cross-sectional view (enlarged view of part A of FIG. 3), and FIG. 6 is an exploded perspective view of the cover 30 for the X-ray detector shown in FIG. In FIG. 5 , the illustration of the front finishing panel 31 to be described later is omitted, and in FIG. 6 , the illustration of the conductive thin plate 36 to be described later is omitted.

4 to 6, the X-ray detector cover 30 in the first embodiment of the present invention, a single layer (Single layer) of the core material 33, and one surface (upper surface) of the core material 33 It includes a first reinforcing panel 32 bonded to. In addition, the second reinforcing panel 35 bonded to the other surface (lower surface) of the core material 33 and the image noise reduction bonded to one surface (lower surface) of the second reinforcing panel 35 in the direction of the lower surface of the core material 33 A conductive thin plate 36 is provided.

The first reinforcing panel 32 is, as shown in FIGS. 3 and 4 , the front finishing panel 31 on the surface opposite to the surface joined to the core 33 (the upper surface of the first reinforcing panel 32 ). It can be laminated. The front finishing panel 31 receives X-rays irradiated from the X-ray generator, and the received X-rays pass through the first reinforcing panel 32, the core 33, and the second reinforcing panel 35 to form a panel assembly ( 20), in detail, may be converted into an electrical signal by being incident on the panel unit 22 .

In the embodiment of the present invention, the X-ray detector cover 30 transmits the X-rays irradiated to the front finishing panel 31 through the first reinforcing panel 32 , the core 33 and the second reinforcing panel 35 . Thus, it may be made of a composite resin material through which X-rays can be transmitted so as to be incident on the panel unit 22 .

Preferably, the first reinforcing panel 32 and the second reinforcing panel 35 may have the same thickness as the core 33 or thinner than the core 33 . As an example, the first reinforcing panel 32 and the second reinforcing panel 35 have the same thickness as the core material 33 or thinner than the core material 33 and thicker than the conductive thin plate 36 or the same as the conductive thin plate 36 . It may be formed to a thickness.

In the cover 30 for the X-ray detector according to the first embodiment of the present invention, the core 33 corresponding to the intermediate material may be a PET foam having a thickness of 0.4 to 1.0 mm, and a first reinforcement bonded to one surface of the core 33 . The second reinforcing panel 35 bonded to the other surface of the panel 32 and the core member 33 may be made of CFRP having a thickness of 0.4 to 0.5 mm.

In addition, the conductive thin plate 36 provided for image noise reduction is a thin plate-shaped body having electrical conductivity, and may have a configuration in which a conductive material is deposited or coated on the surface of a plate-shaped body made of a conductive metal or non-metal material. At this time, the conductive thin plate 36 is preferably made of a metal material, but is not limited to an aluminum material because it can be made of a metal material having conductivity.

5 and 6, in the cover 30 for an X-ray detector according to the first embodiment of the present invention, as shown, the first reinforcing panel 32, the core material 33, and the second reinforcing panel 35 ) and conductive thin plates 36 are sequentially stacked. Thereafter, a hole (H) passing through the first reinforcement panel 32, the core material 33, the second reinforcement panel 35 and the conductive thin plate 36 in the edge portion of the cover 30 for the X-ray detector by post-processing ) and may be coupled to the case 10 by inserting a fastening member (for example, a bolt (B), etc.) through the hole (H). At this time, although not shown, the bolt B may be inserted into the case 10 through the hole H through the insertion hole formed in the front finishing panel 31 .

In detail, the cover 30 for the X-ray detector is bolted ( B) may pass through the cover 30 for the X-ray detector through the hole (H) and be fixed to the assembly step 122 . At this time, an insertion hole into which the bolt (B) can be inserted may also be formed in the assembly step 122 .

In addition, when forming the hole (H) in the edge portion of the X-ray detector cover 30 as shown in Figure 5, the core 33 has a stepped portion 332 on which the head portion of the bolt (B) is seated. It may be formed in a portion of the core 33 . At this time, since the head portion of the bolt (B) is seated on the step portion 332, when the screw portion of the bolt (B) is inserted into the assembly step 122 through the hole (H), the cover for the X-ray detector 30 The coupling between the case 10 and the case 10 may be made more stably.

Meanwhile, although not shown in FIG. 5 , when the thickness of the head portion of the bolt B becomes thinner than the thickness of the first reinforcing panel 32 , a stepped portion is formed in a portion of the first reinforcing panel 32 and the bolt B ) of the head portion is also possible to seat the step portion.

Through the above-described configuration, the cover 30 for the X-ray detector may be coupled to the case 10 in such a way that a portion of the edge is seated and fixed to the assembly step 122 .

The cover 30 for the X-ray detector according to the first embodiment of the present invention can reduce the overall weight of the X-ray detector 1 by using a lightweight material such as PET foam having a predetermined thickness as an intermediate material. cost reduction can be achieved. In addition, since the CFRP is arranged in a relatively thin thickness on the upper and lower sides of the intermediate material, the CFRP pattern is reduced during X-ray transmission, so that the conventional image quality problem caused by the distribution deviation of carbon fibers can be significantly improved.

7 is a schematic cross-sectional view showing a second embodiment of the cover 30 for the X-ray detector shown in FIG. 3, and FIG. 8 is an exploded perspective view of the cover 30 for the X-ray detector shown in FIG. In FIG. 7 , the illustration of the front finishing panel 31 is omitted, and in FIG. 8 , the illustration of the conductive thin plate 36 is omitted.

The cover 30 for the X-ray detector in the second embodiment shown in FIGS. 7 and 8 is the second embodiment except that the frame-shaped frame reinforcement 37 is additionally configured around the outer surface of the core 33 . There is no significant difference from the cover 30 for the X-ray detector described in the first embodiment. Therefore, only the additional components will be described below, and duplicate descriptions will be omitted for the other components identical to those described in the first embodiment.

The cover 30 for the X-ray detector described in the first embodiment can reduce the overall weight of the X-ray detector 1 by using a lightweight material such as PET foam as an intermediate material, and reduce the CFRP pattern during X-ray transmission to improve image quality There are advantages to improving

However, although the bonding strength between the PET foam core 33 and the CFRP material first and second reinforcement panels 32 and 35 is good, the bonding strength between the layers inside the PET foam is relatively weak. When the detector 1 falls or a side impact occurs, there may be a problem in that separation between the inner layers of the PET foam occurs.

In order to solve this problem, as shown in FIGS. 7 and 8 , the cover 30 for the X-ray detector of the second embodiment is a CFRP material border disposed to surround the core material 33 on the same plane as the core material 33 . A reinforcing part 37 may be additionally configured.

The edge reinforcing part 37 may be disposed between the first reinforcing panel 32 and the second reinforcing panel 35 , and may be formed in a shape (frame structure) surrounding the outer surface of the core material 33 .

In detail, the edge reinforcement part 37 may be positioned at the edge of the cover 30 for the X-ray detector as shown in FIG. 7 , and the first reinforcement panel 32 is bonded to one surface (upper surface) and , the second reinforcing panel 35 may be bonded to the other surface (lower surface). At this time, the edge reinforcement part 37 may be joined to the outer surface of the core material 33 in a form surrounding the outer surface of the core material 33 , and the edge reinforcement part 37 has the same thickness as the core material 33 . can be formed.

In addition, the edge reinforcement part 37 is a region through which X-rays are transmitted, that is, a portion in which the first reinforcement panel 32 , the core material 33 , the second reinforcement panel 35 and the conductive thin plate 36 are sequentially stacked. It may be joined to the outer surface of the core member 33 from the outside of the.

On the other hand, although not shown in FIGS. 7 and 8, in the cover 30 for an X-ray detector according to the second embodiment, the above-described edge reinforcing part 37 includes the first reinforcing panel 32, the core 33, the second 2 Reinforcing panel 35 and conductive thin plate 36 are stacked in this order from the outside of the first reinforcement panel 32, the core material 33, the second reinforcement panel 35, the conductive thin plate 36 as a whole It is also possible to be formed in an enclosing form. At this time, the edge reinforcing part 37 includes the first reinforcing panel 32, the core material 33, the second reinforcing panel 35, and the first reinforcing panel 32, the core material ( 33), the second reinforcing panel 35, and the conductive thin plate 36 may be disposed in a form surrounding the outer surface.

Like the cover 30 for the X-ray detector of the first embodiment, in the cover 30 for the X-ray detector according to the second embodiment, as shown in FIGS. 7 and 8, the first reinforcing panel 32, the core material ( 33), the edge reinforcement part 37, the second reinforcement panel 35, and the conductive thin plate 36 are sequentially stacked. Thereafter, a hole passing through the first reinforcing panel 32, the edge reinforcing part 37, the second reinforcing panel 35 and the conductive thin plate 36 in the edge portion of the cover 30 for the X-ray detector by post-processing Forming (H), the bolt (B) is inserted through the hole (H) can be coupled to the case (10).

In addition, when forming a hole (H) in the edge portion of the X-ray detector cover 30 as shown in Figure 7, the edge reinforcement portion 37 has a stepped portion 372 on which the head portion of the bolt (B) is seated. ) may be formed in a portion of the edge reinforcement part 37 . At this time, since the head portion of the bolt (B) is seated on the stepped portion 372, when the screw portion of the bolt (B) is inserted into the assembly step 122 through the hole (H), the cover for the X-ray detector 30 The coupling between the case 10 and the case 10 may be made more stably.

Meanwhile, although not shown in FIG. 7 , when the thickness of the head of the bolt B is thinner than the thickness of the first reinforcing panel 32 , a stepped portion is formed in a portion of the first reinforcing panel 32 and the bolt B ) of the head portion is also possible to seat the step portion.

As described above, the X-ray detector cover 30 according to the second embodiment additionally arranges the edge reinforcement part 37 in a form surrounding the outer surface of the core material 33, so that the X-ray detector 1 falls. Alternatively, it is possible to prevent separation between the inner layers of the core 33 near the bolt (B) during a side impact. In addition, by configuring the edge reinforcement part 37 only on the edge of the cover 30 for the X-ray detector, it is possible to minimize the increase in weight compared to the cover 30 for the X-ray detector of the first embodiment.

In addition, in the present invention, X-rays are irradiated to the front finishing panel 31, pass through the first reinforcing panel 32, the core material 33, and the second reinforcing panel 35 to be incident on the panel unit 22, In the cover 30 for the X-ray detector according to the second embodiment, the edge reinforcement part 37 is arranged only on the edge of the cover 30 for the X-ray detector as shown in FIG. Regardless, the transmittance of X-rays does not decrease.

Therefore, the cover 30 for the X-ray detector according to the second embodiment can maintain image quality while minimizing the increase in weight compared to the cover 30 for the X-ray detector of the first embodiment, and the cover for the X-ray detector ( 30) has the effect of further improving the durability (rigidity).

9 is a schematic cross-sectional view showing a third embodiment of the cover 30 for the X-ray detector shown in FIG.

The cover 30 for the X-ray detector in the third embodiment shown in FIG. 9 is the same as that of the first embodiment, except that the core 34 corresponding to the intermediate material is configured in a multi-layer sandwich structure. There is no big difference structurally with the cover 30 for the X-ray detector. Therefore, only the additional components will be described below, and duplicate descriptions will be omitted for the other components identical to those described in the first embodiment.

The cover 30 for an X-ray detector according to the third embodiment includes a core 34 and a first reinforcing panel 32 bonded to one surface (upper surface) of the core 34 . In addition, the second reinforcing panel 35 bonded to the other surface (lower surface) of the core member 34 and the image noise reduction bonded to one surface (lower surface) of the second reinforcing panel 35 in the lower surface direction of the core member 34 . A conductive thin plate 36 is provided.

The core material 34 has a multi-layer sandwich structure, a first core material layer 340 to which a first reinforcing panel 32 is bonded on one surface (upper surface), and a second reinforcing panel 35 on one surface (lower surface). ) to which the second core layer 344 is bonded.

In addition, the core 34 is formed of a CFRP material with a predetermined thickness to further reinforce the overall rigidity of the cover 30 for the X-ray detector between the first core layer 340 and the second core layer 344 . It may have a sandwich structure in which the reinforcement panel 342 is formed.

The first core layer 340 and the second core layer 344 constituting the core 34 may be a light composite resin material capable of transmitting X-rays, preferably, PET foam having a thickness of 0.2 to 0.7 mm. In addition, the third reinforcement between the first reinforcing panel 32 , the second reinforcing panel 35 , and the first core layer 340 and the second core layer 344 disposed opposite to each other with the core material 34 interposed therebetween. Panel 342 may be 0.1-0.3 mm thick CFRP.

In this way, in the cover 30 for the X-ray detector according to the third embodiment, the overall rigidity of the cover 30 for the X-ray detector is further increased by arranging the third reinforcing panel 342 made of CFRP material in the middle of the core material 34. can be improved

In addition, when compared to the reinforcement panel of the cover 30 for the X-ray detector of the first embodiment, the thickness of the first reinforcement panel 32 and the second reinforcement panel 35 is formed thinner, and the core material 34 is located in the middle. By arranging the first reinforcing panel 32 and the second reinforcing panel 35 and the third reinforcing panel 342 having the same thickness, the thickness of the entire CFRP layer is reduced by the X-ray detector cover 30 according to the first embodiment. It can be made thinner than CFRP, and the X-ray detector 1 can be made lighter due to the dispersion effect of CFRP.

Meanwhile, in configuring the core material 34 in a multi-layer sandwich structure, as shown in FIG. 9 , two core material layers have been described, but this is only an example and the core material layers are not necessarily limited to two. The core layer may be formed of two or more multi-layers, and in this case, one reinforcing panel may be disposed (interposed) between two adjacent core layers.

10 is a schematic cross-sectional view showing a fourth embodiment of the cover 30 for the X-ray detector shown in FIG. In FIG. 10, the illustration of the front finishing panel 31 is omitted, and unlike the third embodiment of the cover 30 for the X-ray detector shown in FIG. 9, only a part is shown.

The cover 30 for the X-ray detector in the fourth embodiment shown in FIG. 10 is the outer surface of the first core layer 340 and the second core layer 344 among the core member 34 in the third embodiment. There is no significant difference from the cover 30 for the X-ray detector described in the third embodiment, except that the frame reinforcement 38 in the form of a multi-layer frame is additionally configured around the periphery. Therefore, only the additional configuration will be described below, and the redundant description of the configuration identical to the configuration described in the third embodiment will be omitted.

As shown in FIG. 10, in the cover 30 for the X-ray detector of the fourth embodiment, an edge reinforcement 38 of a multi-layer structure disposed between the first reinforcement panel 32 and the second reinforcement panel 35 is additionally added. configurable. At this time, the material of the edge reinforcement 38 may be CFRP.

The edge reinforcing part 38 is formed on the same plane as the first reinforcing layer 380 and the second core layer 344 disposed to surround the first core layer 340 on the same plane as the first core layer 340 . and a second reinforcing layer 382 disposed to surround the core layer 344 .

The first reinforcing layer 380 may be disposed between the first reinforcing panel 32 and the third reinforcing panel 342 , and may be formed in a shape (frame structure) surrounding the outer surface of the first core layer 340 . can In addition, the second reinforcing layer 382 may be disposed between the third reinforcing panel 342 and the second reinforcing panel 35 , and has a form (frame structure) surrounding the outer surface of the second core layer 344 . can be formed. A third reinforcing panel 342 may be disposed between the first reinforcing layer 380 and the second reinforcing layer 382 .

In detail, the first reinforcing layer 380 may be located on the upper edge of the cover 30 for the X-ray detector as shown in FIG. 10 , and the first reinforcing panel 32 is bonded to one surface (upper surface). and a third reinforcing panel 342 may be bonded to the other surface (lower surface). In this case, the first reinforcing layer 380 may be bonded to the outer surface of the first core material layer 340 in a form surrounding the outer surface of the first core material layer 340 , and the first reinforcing layer 380 is the first reinforcing layer 380 . It may be formed to have the same thickness as the core layer 340 .

Similarly, the second reinforcing layer 382 may be located at the lower edge portion of the cover 30 for the X-ray detector as shown in FIG. 10, and a third reinforcing panel 342 is bonded to one surface (upper surface), The second reinforcing panel 35 may be bonded to the other surface (lower surface). In this case, the second reinforcing layer 382 may be bonded to the outer surface of the second core material layer 344 in a form surrounding the outer surface of the second reinforcing layer 344 , and the second reinforcing layer 382 is the second reinforcing layer 382 . It may be formed to have the same thickness as the core layer 344 .

In addition, the first reinforcing layer 380 and the second reinforcing layer 382 are the regions through which X-rays are transmitted, that is, the first reinforcing panel 32 , the first core layer 340 , the third reinforcing panel 342 , and the second Bonding to the outer surfaces of the first core layer 340 and the second core layer 344, respectively, outside the portion where the core layer 344, the second reinforcing panel 35, and the conductive thin plate 36 are sequentially stacked can be

On the other hand, although not shown in FIG. 10, the cover 30 for an X-ray detector according to the fourth embodiment has the above-described edge reinforcement 38 similar to the cover 30 for an X-ray detector according to the second embodiment. 1 Reinforcement panel 32, core material 34, second reinforcing panel 35, and conductive thin plates 36 are stacked in this order from the outside of the first reinforcing panel 32, the core material 34, the second The reinforcement panel 35 and the conductive thin plate 36 may be formed to surround the entirety. At this time, the edge reinforcement part 38 may be composed of a single layer, and the first reinforcement panel 32 , the core material 34 , the second reinforcement panel 35 , and the conductive thin plate 36 are first reinforced on the same plane. The panel 32 , the core member 34 , the second reinforcing panel 35 , and the conductive thin plate 36 may be disposed in a form surrounding the outer surface.

As described above, the cover 30 for the X-ray detector according to the fourth embodiment surrounds the outer surfaces of the first core layer 340 and the second core layer 344 among the core member 34 of the third embodiment. By disposing the additional edge reinforcement 38 in the form of a drop or side impact of the X-ray detector 1, there is no separation between the inner layers of the first core layer 340 and the second core layer 344 near the bolt. can prevent it In addition, by configuring the edge reinforcement portion 38 only on the edge portion of the cover 30 for the X-ray detector, it is possible to minimize the increase in weight compared to the cover 30 for the X-ray detector of the third embodiment.

In addition, the cover 30 for the detector according to the fourth embodiment, similarly to the cover 30 for the X-ray detector in the third embodiment, additionally a third reinforcing panel 342 made of CFRP material is disposed in the middle of the core material 34 By doing so, the overall rigidity of the cover 30 for the X-ray detector is further improved, and the thickness of the entire CFRP layer is made thinner than the cover 30 for the X-ray detector according to the first embodiment, and due to the CFRP dispersion effect, the X-ray detector ( 1) can be made lighter.

In addition, the cover for the detector 30 according to the fourth embodiment, like the cover for the detector 30 in the second embodiment, the edge reinforcement portion 38 as shown in FIG. 10, the cover for the X-ray detector ( By being configured only at the edge of 30), the transmittance of X-rays is not reduced regardless of the arrangement of the edge reinforcement 38 . Therefore, the cover 30 for the X-ray detector according to the fourth embodiment can maintain image quality while minimizing the increase in weight compared to the cover 30 for the X-ray detector of the third embodiment, and the cover for the X-ray detector ( 30) has the effect of further improving the durability (rigidity).

11 is a schematic cross-sectional view showing the coupling state of the X-ray detector 1 in another embodiment. Hereinafter, with reference to FIG. 11, the same configuration as the X-ray detector 1 shown in FIG. 3 will be described with the same reference numerals.

11, in the present invention, the spacer 24 is provided on the X-ray detector cover 30 side by using a draw bar 40 having one end attached and fixed to the cover 30 for the X-ray detector described above. It can be configured to be fixed in a towed state.

At this time, a fixing groove 39 is formed to a predetermined depth on the surface of the cover 30 for the X-ray detector facing the spacer 24 , and a part of the draw bar 40 (traction bar) is formed in the fixing groove 39 . (one side of 40) can be inserted so as to be bonded and fixed.

In addition, the other side of the draw bar 40 coupled to the spacer 24 may also be inserted into a fixing groove (not shown) formed in the spacer 24 to be bonded and fixed. Alternatively, the other side of the draw bar 40 may be configured in the form of a clamp that is coupled from the side of the spacer 24 to constrain a portion of the edge of the spacer 24 . At this time, the draw bar 40 may also be made of a lightweight material that can completely transmit X-rays without distortion, preferably PET foam.

The X-ray detector 1 shown in FIG. 11 can stably position the spacer 24 inside the case 10 without fixing the spacer 24 to the case 10 using a separate fixing device or configuration. can That is, in fixing the spacer 24 to the inside of the case 10, an assembling process can be shortened as much as a separate fixing device or configuration is not required, so that an advantageous effect can be exhibited in terms of productivity.

In the above detailed description of the present invention, only specific embodiments thereof have been described. However, it is to be understood that the present invention is not limited to the particular form recited in the detailed description, but rather, it is to be understood to cover all modifications and equivalents and substitutions falling within the spirit and scope of the invention as defined by the appended claims. should be

1: X-ray detector
10: case
12 : frame
20: panel assembly
30: X-ray detector cover
32: first reinforcing panel
33, 34: heartwood
35: second reinforcement panel
36: conductive thin plate
37, 38: edge reinforcement part
40: draw bar
50: rear finish panel
60: battery
220: scintillator

Claims (22)

single-layered core;
a first reinforcing panel joined to one surface of the core material;
a second reinforcing panel joined to the other surface of the core material;
a conductive thin plate bonded to one surface of the second reinforcing panel; and
an edge reinforcement part disposed to surround the core material on the same plane as the core material;
Cover for an X-ray detector comprising a. The method of claim 1,
The first reinforcing panel, the second reinforcing panel, and the core material are made of a composite resin material capable of transmitting X-rays,
The thickness of the first reinforcing panel and the second reinforcing panel is the same as or thinner than the thickness of the core material, and is thicker than the conductive thin plate or the same as the conductive thin plate. The method of claim 1,
The core material is PET foam,
The first reinforcing panel and the second reinforcing panel are X-ray detector cover, characterized in that the CFRP. delete 4. The method according to any one of claims 1 to 3,
The edge reinforcing part is disposed between the first reinforcing panel and the second reinforcing panel, and the cover for an X-ray detector, characterized in that it has the same thickness as the core material. 4. The method according to any one of claims 1 to 3,
The edge reinforcement portion X-ray detector cover, characterized in that bonded to the core material outside the area through which the X-rays are transmitted. 4. The method according to any one of claims 1 to 3,
A cover for an X-ray detector, characterized in that a hole into which a fastening member is inserted is formed through the first reinforcing panel, the edge reinforcing part, the second reinforcing panel, and the conductive thin plate. 8. The method of claim 7,
A cover for an X-ray detector, characterized in that a stepped portion on which the head portion of the fastening member is seated is formed in a portion of the edge reinforcement portion. core material of a double-layer sandwich structure;
a first reinforcing panel joined to one surface of the core material;
a second reinforcing panel joined to the other surface of the core material;
a conductive thin plate bonded to one surface of the second reinforcing panel; and
Containing;
The core is
It includes a plurality of core material layers formed in multiple layers,
A cover for an X-ray detector, characterized in that one reinforcing panel is disposed between the adjacent core layers. 10. The method of claim 9,
The first reinforcing panel, the second reinforcing panel, and the core material are made of a composite resin material capable of transmitting X-rays,
The thickness of the first reinforcing panel and the second reinforcing panel is the same as or thinner than the thickness of the core layer, and is thicker than the conductive thin plate or the same as the conductive thin plate. 10. The method of claim 9,
The core is
a first core layer to which the first reinforcing panel is joined to one surface;
and a second core layer to which the second reinforcing panel is joined to one surface,
A cover for an X-ray detector, characterized in that a third reinforcing panel is formed between the first core layer and the second core layer. 12. The method of claim 11,
The first core layer and the second core layer constituting the core are PET foam,
The first reinforcing panel, the second reinforcing panel and the third reinforcing panel are a cover for an X-ray detector, characterized in that CFRP. 12. The method of claim 11,
The thickness of the first reinforcing panel, the second reinforcing panel, and the third reinforcing panel is the same as or thinner than the thickness of the first core layer and the second core layer. 12. The method of claim 11,
The edge reinforcing part is disposed between the first reinforcing panel and the second reinforcing panel,
The edge reinforcement part,
a first reinforcing layer disposed to surround the first core layer on the same plane as the first core layer; and
a second reinforcing layer disposed to surround the second core layer on the same plane as the second core layer;
A cover for an X-ray detector, characterized in that a third reinforcing panel is disposed between the first reinforcing layer and the second reinforcing layer. 15. The method of claim 14,
The first reinforcing layer has the same thickness as the first core layer, and the second reinforcing layer has the same thickness as the second core layer. 15. The method of claim 14,
The first reinforcing layer is bonded to the first core layer outside the area through which the X-rays are transmitted, and the second reinforcing layer is bonded to the second core layer outside the area through which the X-rays are transmitted. X-ray detector cover. The case of the enclosure structure with one side open;
a cover for an X-ray detector coupled to the case;
a substrate unit supported while being spaced apart from the back plate through a substrate seating protrusion on an upper surface of the back plate constituting the case;
a panel unit disposed between the X-ray detector cover and the substrate unit, the panel unit acquiring image information from X-rays passing through the X-ray detector cover; and
a spacer disposed between the panel unit and the substrate unit;
The cover for the X-ray detector,
heartwood;
a first reinforcing panel joined to one surface of the core material;
a second reinforcing panel joined to the other surface of the core material;
a conductive thin plate bonded to one surface of the second reinforcing panel; and
an edge reinforcement part disposed to surround the core material on the same plane as the core material;
X-ray detector comprising a. 18. The method of claim 17,
The first reinforcing panel, the second reinforcing panel, and the core material are made of a composite resin material capable of transmitting X-rays,
The core material is PET foam, and the first reinforcing panel and the second reinforcing panel are CFRP X-ray detector. 18. The method of claim 17,
The edge reinforcement portion X-ray detector, characterized in that disposed between the first reinforcement panel and the second reinforcement panel. 20. The method of claim 19,
The edge reinforcement portion X-ray detector, characterized in that bonded to the core material outside the area through which the X-rays are transmitted. 20. The method of claim 19,
A hole into which a fastening member is inserted is formed through the first reinforcing panel, the edge reinforcing part, the second reinforcing panel, and the conductive thin plate;
X-ray detector, characterized in that a portion of the edge of the cover for the X-ray detector is fixed to the assembly step formed in the case through the hole by the fastening member. 18. The method of claim 17,
The spacer is an X-ray detector, characterized in that the EPP.

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