KR20210019947A - Cover for x-ray detector and x-ray detector having the same - Google Patents

Abstract

Disclosed are a cover for an X-ray detector, and an X-ray detector having the same. According to one embodiment of the present invention, the cover for an X-ray detector comprises: a core material of a single layer structure; 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 a conductive thin plate bonded to one surface of the second reinforcement panel.

Description

Cover for X-ray detector and X-ray detector including the same {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, which is configured in a sandwich structure and has sufficient strength, and is advantageous in reducing the weight of the device, and to 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 transmitted through the subject. The generated light (visible light) is converted into an electrical (charge) signal to obtain image data.

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

As described above, the scintillator is composed of a fluorescent material that generates light (visible light) in response to X-rays transmitted through the subject, and is irradiated from the X-ray generator and transmits X-rays transmitted through the subject to light ( Visible light), and the image detector converts 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 light (visible light) converted by a scintillator into an electric signal and outputs it. The image detector generally includes a plurality of pixels arranged in a matrix form, and charges each pixel with a charge proportional to the amount of visible light generated by the scintillator.

The gate driver performs the 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. Then, it serves to read the charge value charged in each pixel of the line.

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

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

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

However, when 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, image quality may also be poor, such as uneven patterns appearing in the captured 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 conditions required by the X-ray detector, while still meeting the demand for weight reduction. It is an object of the present invention 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, so that cost reduction can be achieved and an X-ray detector cover capable of improving the image defect problem, and an X-ray including the same. Its purpose is to provide a detector.

The 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 characterized in that it comprises 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 through which X-rays are transmitted, and the thickness of the first reinforcing panel and the second reinforcing panel is thinner than that of the core material, It is characterized in that the thickness is thicker than the conductive thin plate or 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 a frame reinforcement portion disposed so as to surround the core material on the same plane as the core material.

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

Preferably, the edge reinforcing 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.

Preferably, the stepped portion on which the head portion of the fastening member is seated is formed in a partial region of the edge reinforcing 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 side of the core material, a second reinforcing panel bonded to the other side of the core material, and the second reinforcing panel. 2 It includes a conductive thin plate bonded to one surface of the reinforcing panel, wherein the core material includes at least one core material layer formed in a double layer, and one reinforcing panel is disposed between the core material layers adjacent to each other.

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 thinner than that of the core material, It is characterized in that the thickness is thicker than the conductive thin plate or the same thickness as the conductive thin plate.

Preferably, the core material includes a first core layer to which the first reinforcing panel is bonded to one surface, and a second core layer to which the second reinforcing panel is bonded to one surface, and the first core layer and the second It is characterized in that 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 reinforcement panel, the second reinforcement panel, and the third reinforcement panel are CFRP.

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

Preferably, further comprising a border reinforcement portion of a multilayer structure disposed between the first reinforcing panel and the second reinforcing panel, the edge reinforcing portion surrounds the first core layer on the same plane as the first core layer And a second reinforcing layer disposed so as to surround the second core layer on the same plane as the first reinforcing layer and the second reinforcing layer, and a third reinforcing panel between the first reinforcing layer and the second reinforcing layer It is characterized in that it is arranged.

Preferably, the first reinforcing layer has the same thickness as the first core material layer, and the second reinforcement layer is the same thickness as the second core material layer.

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

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

Preferably, the cover for the X-ray detector includes a 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 one surface of the second reinforcing panel. It characterized in that it comprises a conductive thin plate.

Preferably, 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 It is characterized in that it is CFRP.

Preferably, it further comprises an edge reinforcement portion disposed to surround the core material on the same plane as the core material, and the edge reinforcement portion is disposed between the first and second reinforcement panels.

Preferably, the edge reinforcing 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 part of the edge of the cover for the X-ray detector through the hole Is fixed to the assembly step formed on the case by the fastening member.

Preferably, the spacer is characterized in that EPP.

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

In addition, since CFRP is placed in a relatively thin thickness above and below the core material made of PET foam, which is an intermediate material, the CFRP pattern is reduced during X-ray transmission, so that 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 formed to be thinner, and as a CFRP having the same thickness as the CFRP disposed above and below the core material is additionally disposed in the middle of the core material, the overall CFRP is 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 layer or a double layer of CFRP is disposed at the edge of the X-ray detector cover in a form surrounding the outer surface of the core material, when the X-ray detector falls or a side impact, the inner layers of the core material near the bolt are separated Can be avoided.

In addition, in the case of an X-ray detector to which a cover for an X-ray detector according to an embodiment of the present invention is applied, a part (or all) of the substrate unit is accommodated in the substrate receiving portion of the spacer. The overall thickness of the panel assembly can be made thin, and thus, device slimming can be achieved.

In addition, in the case of an X-ray detector with a drawbar, the spacer can be stably placed inside the case without fixing the spacer to the case by using a separate fixing device or configuration. As it can be shortened, there is 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 is applied according to an embodiment of the present invention.
2 is an exploded perspective view of the panel assembly shown in FIG. 1.
3 is a schematic cross-sectional view of a main part showing a coupled state of the X-ray detector shown in FIG.
4 is a schematic cross-sectional view showing a first embodiment of the cover for an X-ray detector shown in FIG. 3.
Fig. 5 is a schematic cross-sectional view showing the combined state of the cover for an X-ray detector in the first embodiment (an enlarged view of part A in Fig. 3).
6 is an exploded perspective view of the cover for an X-ray detector shown in FIG. 4.
7 is a schematic cross-sectional view showing a second embodiment of the cover for an X-ray detector shown in FIG. 3.
8 is an exploded perspective view of the cover for an X-ray detector shown in FIG. 7.
9 is a schematic cross-sectional view showing a third embodiment of the cover for an X-ray detector shown in FIG. 3.
10 is a schematic cross-sectional view showing a fourth embodiment of the cover for an X-ray detector shown in FIG. 3.
11 is a schematic cross-sectional view of a main part showing a coupled state of an X-ray detector according to 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 only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In the present specification, terms such as "comprise" or "have" are intended to designate the presence of features, numbers, steps, actions, components, parts, or a combination thereof described in the specification, but one or more other features or It is to be understood that the presence or addition of numbers, steps, actions, components, parts, or combinations thereof does not preclude the possibility of preliminary exclusion.

In addition, terms such as first and second may be used to describe various components, but the components should not be limited by the terms. These terms are used only for the purpose of distinguishing one component from another component.

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

In the description with reference to the accompanying drawings, the same drawing reference numerals are assigned to the same components, and redundant descriptions thereof will be omitted. In addition, in describing the present invention, when it is determined that a detailed description of a related known technology may unnecessarily obscure the subject matter of the present invention, a 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 described 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 is applied according to an embodiment of the present invention, and FIG. 2 is an exploded perspective view of the panel assembly 20 illustrated in FIG. 1. And FIG. 3 is a schematic cross-sectional view of a main part showing a coupled state of the X-ray detector 1 shown in FIG. 1.

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

The case 10 is a frame 12 composed of a plurality of side support units 120 and a back plate that is installed to contact the lower end of each side support unit 120 of the frame 12 to constitute the bottom surface of the case 10 It can be composed of (14). In an embodiment of the present invention, the plurality of side supporters 120 may constitute a side surface of the case 10.

A cover 30 for an X-ray detector may be installed on an open side of the case 10, and a panel assembly 20 may be disposed between the cover 30 for an X-ray detector and the back plate 14. As an example, the detector cover 30 may have a rectangular flat plate structure. However, the structure of the detector cover 30 is not limited to a rectangle, 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 the 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 electric 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.

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, as shown in FIGS. 2 and 3. 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. The substrate unit 26 generates a control signal by receiving an electrical signal transmitted from the outside, 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 transmitted through the subject, and the photoelectric conversion panel 222 receives light (visible light) generated by the scintillator 220. It can be converted into an electric (charge) signal and output.

The photoelectric conversion panel 222 includes photoelectric conversion elements (not shown) of a photodiode-based matrix array and a switch element (not shown) for controlling current between the photoelectric conversion elements. As an example, the switch device 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 the charge value of the photoelectric conversion device.

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

Preferably, 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 mounting protrusion 140, the substrate unit 26 is on the substrate mounting protrusion 140 It can be stably fixed without shaking. As an example, the fastening member may be a bolt.

The panel unit 22 is mounted on the upper surface of the spacer 24 interposed between the substrate unit 26 and the panel unit 22 to maintain a gap, and the substrate unit 26 is in close contact with the lower surface of the spacer 24. I can. In this case, as shown in FIGS. 2 and 3, the surface of the spacer 24 facing the substrate unit 26 (the lower surface of the spacer 24) has a size corresponding to the shape of the substrate unit 26 and a predetermined size. The substrate receiving portion 240 having a depth may be engraved.

A part or all of the substrate unit 26 is accommodated in the substrate receiving part 240 so that the substrate unit 26 is inserted into the spacer 24, and thus the spacer 24 is ) Can be stably fixed without shaking. In addition, since a part or all of the substrate unit 26 is accommodated in the substrate receiving unit 240, the overall thickness of the panel assembly 20 becomes thinner as the substrate unit 26 is accommodated in the substrate receiving unit 240, making the device slimmer. Can be configured.

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

An X-ray detector 1 according to an embodiment of the present invention includes a cover 30 for an X-ray detector. Referring to FIG. 1, the cover 30 for an X-ray detector is in front (upper part) of the panel unit 22 of the panel assembly 20 described above based on the traveling direction of X-rays irradiated from an X-ray generator (not shown). ) Is spaced apart from each other at a predetermined interval 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 unit 120 described above. As shown in Figure 3, the cover 30 for the X-ray detector is a form in which a part of the edge of the cover 30 for the X-ray detector is seated and fixed to an assembly step 122 formed inside the upper end of the side support 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 considerable level of external impact or load is applied. In addition, since the X-ray detector cover 30 is disposed in front of the panel unit 22 corresponding to the image sensor unit based on the traveling direction of the X-rays, X-rays can be completely transmitted to the panel unit 22 without distortion. Should be.

On the other hand, as in the prior art, when the cover is composed of CFRP alone, there is a limit to reducing the weight while maintaining proper strength due to material properties. 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, image quality may also be poor, such as uneven patterns appearing in the captured image.

The cover 30 for an 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 synthesis of terephthalic acid and ethylene glycol. It may be a sandwich structure in which CFRP of relatively thin thickness is placed above and below the intermediate material. Therefore, it is possible to meet the demand for weight reduction of the device while having sufficient strength to satisfy the load-bearing condition required by the X-ray detector 1.

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

FIG. 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 cross-sectional view showing a coupled state of the cover 30 for an X-ray detector in the first embodiment. It is a cross-sectional view (an enlarged view of part A in FIG. 3), and FIG. 6 is an exploded perspective view of the cover 30 for an X-ray detector shown in FIG. 4. In FIG. 5, the illustration of the front finish 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 cover 30 for an X-ray detector in the first embodiment of the present invention includes a core material 33 having a single layer structure, and one surface (upper surface) of the core material 33 It includes a first reinforcing panel 32 to be bonded to. In addition, the second reinforcing panel 35 bonded to the other side (bottom) of the core material 33 and the image noise bonded to one side (bottom) of the second reinforcing panel 35 in the lower surface direction of the core material 33 are reduced. A conductive thin plate 36 is provided.

The first reinforcing panel 32, as shown in FIGS. 3 and 4, has a front finish panel 31 on the side opposite to the side (the top surface of the first reinforcing panel 32) opposite to the side joined to the core member 33 Can be laminated and bonded. The front finish 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 material 33, and the second reinforcing panel 35 to pass through the panel assembly ( 20), in detail, by incident on the panel unit 22, it may be converted into an electric signal.

In an exemplary embodiment of the present invention, the X-ray detector cover 30 transmits X-rays irradiated to the front finish panel 31 through the first reinforcing panel 32, the core material 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 a thickness thinner than that of the core member 33. As an example, the first reinforcing panel 32 and the second reinforcing panel 35 may be thinner than the core member 33 and may be thicker than the conductive thin plate 36 or may have the same thickness as the conductive thin plate 36.

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

In addition, the conductive thin plate 36 provided to reduce image noise 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-like body made of a conductive metal material or a non-metal material. In this case, the conductive thin plate 36 is preferably an aluminum thin plate if it is made of a metal material, but it is not limited to an aluminum material because it is possible if it is 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, a first reinforcing panel 32, a core member 33, and a second reinforcing panel 35 ) And the conductive thin plate 36 are stacked in order. Thereafter, a hole (H) penetrating the first reinforcing panel 32, the core member 33, the second reinforcing panel 35 and the conductive thin plate 36 at the edge of the cover 30 for an X-ray detector through post-processing. ), and a fastening member (for example, a bolt (B), etc.) is inserted through the hole (H) to be coupled to the case 10. At this time, although not shown, the bolt B may penetrate the insertion hole formed in the front finish panel 31 and may be inserted into the case 10 through the hole H.

In detail, the X-ray detector cover 30 includes a bolt in a state in which a part of the edge of the X-ray detector cover 30 is positioned on the assembly step 122 formed inside the upper end of the side support 120 described above. B) may pass through the cover 30 for an X-ray detector through the hole H and be fixed to the assembly step 122. In this case, an insertion hole into which the bolt B can be inserted may be formed in the assembly step 122.

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

Meanwhile, although not shown in FIG. 5, when the thickness of the head portion of the bolt B is thinner than that of the first reinforcing panel 32, a stepped portion is formed in a partial area of the first reinforcing panel 32, and the bolt B ) Of the head portion may be mounted on the stepped portion.

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

The cover 30 for an 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 above and below the intermediate material, the CFRP pattern is reduced during X-ray transmission, so that the conventional image quality problem due to the distribution deviation of carbon fibers can be greatly improved.

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

The cover 30 for an X-ray detector in the second embodiment shown in FIGS. 7 and 8 is the first except that a frame-shaped frame-shaped reinforcement part 37 is additionally configured around the outer surface of the core material 33. There is no significant difference from the cover 30 for an X-ray detector described in the first embodiment. Therefore, hereinafter, only the additional configurations will be described, and redundant descriptions will be omitted for other configurations that are the same as those described in the first embodiment.

The cover 30 for the X-ray detector described in the first embodiment uses a lightweight material such as PET foam as an intermediate material, thereby reducing the overall weight of the X-ray detector 1 and reducing the CFRP pattern when transmitting X-rays, resulting in image quality. There is an advantage that can be improved.

However, the bonding strength between the PET foam core 33 and the CFRP first and second reinforcing panels 32 and 35 is good, but the bonding force 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 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 an X-ray detector according to the second embodiment is formed of a CFRP material disposed so as to surround the core material 33 on the same plane as the core material 33. The reinforcement part 37 may be additionally configured.

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

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

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

Meanwhile, 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 frame reinforcing part 37 includes the first reinforcing panel 32, the core material 33, and 2 The first reinforcing panel 32, the core material 33, the second reinforcing panel 35, and the entire conductive thin plate 36 are removed from the outside of the portion where the reinforcing panel 35 and the conductive thin plate 36 are sequentially stacked. It is also possible to be formed in a surrounding form. At this time, the frame reinforcement part 37 is on the same plane as the first reinforcement panel 32, the core material 33, the second reinforcement panel 35, and the conductive thin plate 36, the first reinforcement 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 an X-ray detector of the first embodiment, the cover 30 for an X-ray detector according to the second embodiment has a first reinforcing panel 32 and a core material as shown in FIGS. 7 and 8. 33), the frame reinforcing part 37, the second reinforcing panel 35, and the conductive thin plate 36 are sequentially stacked. Thereafter, a hole through the first reinforcement panel 32, the edge reinforcement part 37, the second reinforcement panel 35, and the conductive thin plate 36 at the edge of the X-ray detector cover 30 through post-processing. (H) is formed, and the bolt (B) is inserted through the hole (H) to be coupled to the case 10.

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

On the other hand, although not shown in FIG. 7, when the thickness of the head portion of the bolt (B) is thinner than that of the first reinforcing panel 32, a stepped portion is formed in a partial area of the first reinforcing panel 32 and the bolt (B) ) Of the head portion may be mounted on the stepped portion.

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

In addition, in the present invention, X-rays are irradiated to the front finish panel 31 and pass through the first reinforcing panel 32, the core material 33, and the second reinforcing panel 35 to enter the panel unit 22. 2 In the X-ray detector cover 30 according to the embodiment, the frame reinforcement part 37 is configured only at the edge of the X-ray detector cover 30 as shown in FIG. Regardless of the X-ray transmittance does not decrease.

Therefore, the cover 30 for an X-ray detector according to the second embodiment can maintain image quality while minimizing an increase in weight compared to the cover 30 for an X-ray detector of the first embodiment, and the cover for an X-ray detector ( There is an effect that can further improve the durability (stiffness) of 30).

9 is a schematic cross-sectional view showing a third embodiment of the cover 30 for an X-ray detector shown in FIG. 3.

The cover 30 for an X-ray detector according to the third embodiment shown in FIG. 9 is of the first embodiment, except that the core material 34 corresponding to the intermediate material is configured in a multi-layer sandwich structure. There is no significant difference structurally from the cover 30 for an X-ray detector. Therefore, hereinafter, only the additional configurations will be described, and redundant descriptions will be omitted for other configurations that are the same as those described in the first embodiment.

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

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

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

The first core layer 340 and the second core layer 344 constituting the core material 34 may be a composite resin material that is light and transmits X-rays, preferably a 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, which are disposed opposite to each other with the core material 34 interposed therebetween. The panel 342 may be a CFRP having a thickness of 0.1 to 0.3 mm.

In this way, in the cover 30 for an X-ray detector according to the third embodiment, a third reinforcing panel 342 made of CFRP material is additionally disposed in the middle of the core 34 to further enhance the overall rigidity of the cover 30 for an X-ray detector. Can be improved.

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

Meanwhile, in configuring the core material 34 in a multilayer sandwich structure, as shown in FIG. 9, the core material layer is composed of two, but this is only an example and the core material layer is not necessarily limited to two. The core material 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 material layers.

10 is a schematic cross-sectional view showing a fourth embodiment of the cover 30 for an X-ray detector shown in FIG. 3. In FIG. 10, illustration of the front finish panel 31 is omitted, and only a part of the cover 30 for an X-ray detector shown in FIG. 9 is shown differently from the third embodiment.

The cover 30 for an X-ray detector according to the fourth embodiment shown in FIG. 10 is an outer surface of the first core layer 340 and the second core layer 344 in the configuration of the core material 34 in the third embodiment. There is no significant difference from the cover 30 for an X-ray detector described in the third embodiment except that a multi-layer frame-shaped frame reinforcement part 38 is additionally configured around the perimeter. Therefore, hereinafter, only the additional configurations will be described, and redundant descriptions will be omitted for other configurations that are the same as those described in the third embodiment.

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

The frame reinforcement part 38 is disposed to surround the first core layer 340 on the same plane as the first core layer 340 and the second reinforcing layer 380 and the second core layer 344 are disposed on the same plane. It includes 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. I can. In addition, the second reinforcing layer 382 may be disposed between the third reinforcing panel 342 and the second reinforcing panel 35 and surround the outer surface of the second core layer 344 (frame structure). Can be formed. In addition, 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). The 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 layer 340 in a form surrounding the outer surface of the first core layer 340, and the first reinforcing layer 380 is a first 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 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 side (lower surface). At this time, the second reinforcing layer 382 may be bonded to the outer surface of the second core layer 344 in a form surrounding the outer surface of the second core layer 344, and the second reinforcing layer 382 is a second 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 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 Bonded to the outer surfaces of the first core layer 340 and the second core layer 344, respectively, from the outside of 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 includes the aforementioned frame reinforcement part 38 as in the cover 30 for an X-ray detector according to the second embodiment. 1 The first reinforcement panel 32, the core material 34, the second reinforcement panel 32, the core material 34, and the second reinforcing panel 32, the core material 34, the second reinforcing panel 35, and the conductive thin plate 36 It is also possible to form a shape surrounding the entire reinforcing panel 35 and the conductive thin plate 36. At this time, the frame reinforcement part 38 may be composed of a single layer, and the first reinforcement on the same plane as the first reinforcement panel 32, the core material 34, the second reinforcement panel 35, and the conductive thin plate 36 The panel 32, the core material 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 an X-ray detector according to the fourth embodiment surrounds the outer surfaces of the first core layer 340 and the second core layer 344 of the core material 34 of the third embodiment. By arranging the additional edge reinforcement part 38 in the form, when the X-ray detector 1 falls or a side impact, the first core layer 340 and the second core layer 344 in the vicinity of the bolt are not separated. Can be avoided. In addition, by configuring the edge reinforcement part 38 only at the edge of the cover 30 for an X-ray detector, the weight increase can be minimized compared to the cover 30 for an X-ray detector of the third embodiment.

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

In addition, the detector cover 30 according to the fourth embodiment has an edge reinforcing portion 38 similar to the detector cover 30 in the second embodiment, as shown in FIG. 10, a cover for an X-ray detector ( Since it is configured only at the edge of 30), the transmittance of X-rays is not lowered regardless of the arrangement of the edge reinforcing portion 38. Therefore, the cover 30 for an X-ray detector according to the fourth embodiment can maintain image quality while minimizing an increase in weight compared to the cover 30 for an X-ray detector of the third embodiment, and the cover for an X-ray detector ( There is an effect that can further improve the durability (stiffness) of 30).

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

As shown in FIG. 11, in the present invention, the spacer 24 is placed on the side of the cover 30 for the X-ray detector using a pull bar 40 having one end attached and fixed to the cover 30 for an X-ray detector. It can be configured to be fixed in a towed state.

At this time, a fixing groove 39 is formed at a predetermined depth on the surface of the cover 30 for an X-ray detector facing the spacer 24, and a portion of the draw bar 40 (a pulling bar) is formed in the fixing groove 39. One side of (40)) can be inserted and fixed.

In addition, the other side of the draw bar 40 coupled with 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 pull bar 40 may be formed in the form of a claw that is coupled at the side of the spacer 24 to constrain a portion of the edge of the spacer 24. At this time, the pull bar 40 may also be composed of a lightweight material capable of completely transmitting X-rays without distortion, preferably PET foam.

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

In the above detailed description of the present invention, only special embodiments according thereto have been described. However, it should be understood that the present invention is not limited to a particular form mentioned in the detailed description, but rather, it is understood to include all modifications, equivalents, and substitutes within the spirit and scope of the present 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 reinforcement panel
33, 34: heartwood
35: second reinforcement panel
36: conductive thin plate
37, 38: border reinforcement
40: draw bar
50: rear finish panel
60: battery
220: scintillator

Claims (22)

Single-layered core material;
A first reinforcing panel bonded to one surface of the core material;
A second reinforcing panel bonded to the other side of the core material; And
Cover for an X-ray detector comprising a; conductive thin plate bonded to one surface of the second reinforcing panel. The method of claim 1,
The first reinforcing panel, the second reinforcing panel, and the core material are made of a composite resin material through which X-rays can be transmitted,
The first reinforcing panel and the second reinforcing panel are thinner than the core material, thicker than the conductive thin plate, or the same thickness as the conductive thin plate. The method of claim 1,
The core material is PET foam,
The first reinforcement panel and the second reinforcement panel is a cover for an X-ray detector, characterized in that the CFRP. The method of claim 1,
X-ray detector cover, characterized in that it further comprises an edge reinforcement portion disposed so as to surround the core material on the same plane as the core material. The method of claim 4,
The frame reinforcing part is disposed between the first reinforcing panel and the second reinforcing panel, and has the same thickness as the core material. The method of claim 4,
The edge reinforcing part is a cover for an X-ray detector, characterized in that bonded to the core material outside the area through which the X-rays are transmitted. The method of claim 4,
A cover for an X-ray detector, wherein 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. 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 partial region of the edge reinforcing portion. Double-layer sandwich structure core;
A first reinforcing panel bonded to one surface of the core material;
A second reinforcing panel bonded to the other side of the core material; And
Including; a conductive thin plate bonded to one surface of the second reinforcing panel,
The heartwood,
Including at least one core layer formed as a multi-layer,
Cover for an X-ray detector, characterized in that one reinforcing panel is disposed between the core layers adjacent to each other. The method of claim 9,
The first reinforcing panel, the second reinforcing panel, and the core material are made of a composite resin material through which X-rays can be transmitted,
The first reinforcing panel and the second reinforcing panel are thinner than the core material, thicker than the conductive thin plate, or the same thickness as the conductive thin plate. The method of claim 9,
The heartwood,
A first core layer to which the first reinforcing panel is bonded to one side,
Including a second core layer to which the second reinforcing panel is bonded to one side,
A cover for an X-ray detector, wherein a third reinforcing panel is formed between the first core layer and the second core layer. The method of claim 11,
The first core layer and the second core layer constituting the core material are PET foam,
The first reinforcing panel, the second reinforcing panel, and the third reinforcing panel are CFRP. The method of claim 11,
The first reinforcing panel, the second reinforcing panel, and the third reinforcing panel have a thickness thinner than that of the first core layer and the second core layer. The method of claim 11,
Further comprising a border reinforcement portion of a multi-layer structure disposed between the first reinforcement panel and the second reinforcement panel,
The frame reinforcement part,
A first reinforcing layer disposed to surround the first core layer on the same plane as the first core layer, and
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, wherein a third reinforcing panel is disposed between the first reinforcing layer and the second reinforcing layer. The method of claim 14,
The first reinforcing layer has the same thickness as the first core material layer, and the second reinforcement layer has the same thickness as the second core material layer. The method of claim 14,
The first reinforcing layer is bonded to the first core material layer outside the region through which the X-rays are transmitted, and the second reinforcement layer is bonded to the second core material layer outside the region through which the X-rays are transmitted. X-ray detector cover. A case of an open housing structure on one side;
A cover for an X-ray detector coupled to the case;
A substrate unit supported in a state spaced apart from the back plate through a substrate mounting protrusion on an upper surface of the back plate constituting the case;
A panel unit disposed between the cover for the X-ray detector and the substrate unit, and obtaining image information from X-rays transmitted through the cover for the X-ray detector; And
Including; a spacer disposed between the panel unit and the substrate unit,
The cover for the X-ray detector,
Heartwood;
A first reinforcing panel bonded to one surface of the core material;
A second reinforcing panel bonded to the other side of the core material; And
X-ray detector comprising a; conductive thin plate bonded to one surface of the second reinforcing panel. The method of claim 17,
The first reinforcing panel, the second reinforcing panel, and the core material are made of a composite resin material through which X-rays can be transmitted,
The core material is PET foam, and the first reinforcing panel and the second reinforcing panel are CFRP. The method of claim 17,
Further comprising a border reinforcement portion disposed to surround the core material on the same plane as the core material,
The edge reinforcement part is an X-ray detector, characterized in that disposed between the first reinforcement panel and the second reinforcement panel. The method of claim 19,
The edge reinforcing portion is an X-ray detector, characterized in that bonded to the core material outside the area through which the X-rays are transmitted. The method of claim 19,
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,
X-ray detector, characterized in that a part of the edge of the cover for the X-ray detector is fixed to the assembly step formed in the case by the fastening member through the hole. The method of claim 17,
The spacer is an X-ray detector, characterized in that EPP.

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