Housing and measuring device

Abstract

To obtain a housing capable of improving maintainability while preventing the intrusion of electromagnetic waves without using a gasket.SOLUTION: The housing includes the box member 7 having the rectangular bottom plate 71 and the box side wall portion 72 and having the opening 73 formed in the top surface, and the lid member having the rectangular top plate covering the opening 73 and the lid side wall portion, and the box member 7 is provided with the flange 74 extending from the end portion of the first box side wall portion 721 on the top plate side toward the second box side wall portion 722 opposed to the first box side wall portion 721 and overlapping with the top plate. The first lid side wall portion is provided outside the second box side wall portion 722, the second lid side wall portion and the third lid side wall portion are respectively provided outside the third box side wall portion 723 and the fourth box side wall portion 724 of the plurality of box side wall portions 72, which are adjacent to the first box side wall portion 721 and the second box side wall portion 722 and face each other, and the top plate and the flange 74 can be fastened by the fastening member.SELECTED DRAWING: Figure 6

Description

[Technical Field]

[0001] The present invention relates to a housing and a measuring device. [Background technology]

[0002] A measurement device is known that includes a radiation source that emits radiation and a detector that detects the amount of radiation emitted from the radiation source. The detector is provided with a control board on which a detection circuit and the like for detecting the amount of radiation are mounted.

[0003] The control board is housed in a metal housing to protect it from electromagnetic waves. The housing includes a box body with an opening on the top surface and a lid body that covers the opening formed in the box body. In the housing that houses the control board, it is preferable to make the gap between the box body and the lid body small to reduce electromagnetic waves that enter the interior.

[0004] To address this issue, a gasket may be inserted between the box and the lid to seal the gap, but this increases the number of parts and can cause problems depending on the gasket material.

[0005] In the housing disclosed in Patent Document 1, a protrusion that is crushed by the lid is provided on the edge of the opening of the box. By screwing the lid to a column erected in the center of the opening, the protrusion is crushed by the lid, thereby reducing the gap between the box and the lid without using a gasket. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Application Laid-Open No. 2007-287759 Summary of the Invention [Problem to be solved by the invention]

[0007] In some cases, a lid may be opened for maintenance or other purposes to access the control board housed inside the housing. In the housing disclosed in Patent Document 1, a pillar erected in the center of the opening may get in the way of work inside the housing. Furthermore, since the shape of the protrusion crushed by the lid is not restored, there is a risk that the gap between the box and the lid may not be sufficiently reduced when the lid is closed again after the lid is opened for maintenance or other purposes.

[0008] An object of the present invention is to provide a housing that can prevent the intrusion of electromagnetic waves without using a gasket and can improve maintainability. [Means for solving the problem]

[0009] The housing according to the present invention is a housing for accommodating a control board provided in a detector for detecting a dose of radiation emitted from a radiation unit having a radiation source, and includes: a box body having a rectangular bottom plate and box side walls rising from each side of the bottom plate, with an opening formed on the top surface surrounded by the box side walls; a lid body having a rectangular top plate covering the opening and lid side walls rising from three of the four sides of the top plate toward the bottom plate; and a first box side wall, which is one of the plurality of box side walls, extending from the top plate side end of the first box side wall to the top plate side end of the first box side wall. The top plate and the flange are provided with a flange that extends toward the second box side wall that faces the first box side wall and overlaps with the top plate, the first lid side wall being one of the three lid side walls being provided on the outside of the second box side wall, and the second lid side wall and the third lid side wall that are adjacent to the first lid side wall among the three lid side walls being provided on the outside of the third box side wall and the fourth box side wall that are adjacent to the first box side wall and the second box side wall among the multiple box side walls and that face each other, and the top plate and the flange can be fastened together with a fastening member. [Effects of the Invention]

[0010] According to the present invention, it is possible to obtain a housing that can secure a space for accommodating a control board while preventing the intrusion of electromagnetic waves without using a gasket. [Brief explanation of the drawings]

[0011] [Figure 1] FIG. 1 is a front view of a measurement device according to a first embodiment. [Figure 2] FIG. 2 is a rear view of the measurement device according to the first embodiment. [Figure 3] FIG. 2 is a front view of the measuring device with the front panel open. [Figure 4] FIG. 2 is a perspective view of the measuring device with the front panel open. [Figure 5] FIG. 2 is a perspective view of a housing according to the first embodiment. [Figure 6] FIG. [Figure 7] FIG. [Figure 8] FIG. [Figure 9] 10A and 10B are diagrams illustrating other examples of fastening members. [Figure 10] 10A and 10B are diagrams illustrating other examples of fastening members. DETAILED DESCRIPTION OF THE INVENTION

[0012] A housing and a measuring device according to an embodiment of the present invention will be described in detail below with reference to the drawings. Note that the present invention is not limited to the embodiment described below.

[0013] [Embodiment 1] FIG. 1 is a front view of the measuring device according to the first embodiment. FIG. 2 is a rear view of the measuring device according to the first embodiment. The measuring device 1 includes a box-shaped outer shell 11. The outer shell 11 includes a front panel 12 and a rear panel 13. In FIGS. 1 and 2, the measuring device 1 is assumed to be installed on a horizontal surface. The horizontal direction used in the following description is a direction based on the state in which the measuring device 1 is installed on a horizontal surface. The up-down direction used in the following description is a direction parallel to the vertical direction based on the state in which the measuring device 1 is installed on a horizontal surface. The installation posture and direction of the measuring device 1 shown here are determined for the convenience of explaining the first embodiment, and do not limit the actual installation posture of the measuring device 1.

[0014] Horizontally extending openings 12a and 13a are formed in opposing positions on front panel 12 and rear panel 13. Measuring device 1 is a device that measures the thickness of an object that has been passed through openings 12a and 13a. Examples of objects whose thicknesses are measured by measuring device 1 include film or sheet-like materials such as electrode sheets and separator sheets for secondary batteries, paper, plastic packaging sheets, building material sheets, functional material sheets, optical films, and metal foils.

[0015] Front panel 12 is provided so as to be openable and closable relative to outer casing 11. For example, front panel 12 is formed by dividing it into upper and lower halves with opening 12a at the center. Fig. 3 is a front view of the measuring device with the front panel open. Fig. 4 is a perspective view of the measuring device with the front panel open.

[0016] 3 and 4, the upper front panel 12 is connected to the outer casing 11 by a hinge 14 and can be opened and closed. The lower front panel 12 is detachable from the outer casing 11, and in FIG. 3, the lower front panel 12 has been removed.

[0017] An electrical equipment section 15 is provided on the outside of the outer casing 11. The electrical equipment section 15 includes a power supply, a control device, and a box that houses them. Measurement of the object to be measured using the radiation section 2 and detection section 3, which will be described later, is controlled by the electrical equipment section 15.

[0018] Leg fittings 16 are provided below the outer casing 11 to abut against the installation surface on which the measuring device 1 is installed. The amount of downward protrusion of the leg fittings 16 from the outer casing 11 is adjustable. By adjusting the amount of protrusion of the leg fittings 16, the height of the measuring device 1 can be adjusted. The amount of protrusion of the leg fittings 16 can be adjusted by rotating the leg fittings 16, for example.

[0019] An emitter 2 and a detector 3 are provided inside the outer casing 11. The emitter 2 has a radiation source inside and emits radiation toward the detector 3. In the measurement device according to embodiment 1, the radiation emitted from the emitter 2 is directed upward. The emitter 2 is supported by a lower rail 4 attached to the rear panel 13. The lower rail 4 is a rail member that extends horizontally and is attached below the opening 13a. By being supported by the lower rail 4, the emitter 2 is able to move horizontally below the opening 13a.

[0020] The detection unit 3 is provided above the emission unit 2. A gap allowing the object to be measured to pass through is provided between the detection unit 3 and the emission unit 2. The detection unit 3 detects the amount of radiation emitted from the emission unit 2.

[0021] The detection unit 3 is supported by an upper rail 5 attached to the rear panel 13. The upper rail 5 is a rail member that extends horizontally and is attached above the opening 13a. By being supported by the upper rail 5, the detection unit 3 is able to move horizontally above the opening 13a.

[0022] In the measuring device 1, the object to be measured, which is taken into the interior of the outer body 11 through the openings 12a and 13a, passes between the emitting unit 2 and the detecting unit 3. While the object to be measured passes, the emitting unit 2 and the detecting unit 3 move (scan) in the horizontal direction while facing each other. The amount of attenuation of the radiation emitted from the emitting unit 2 as it passes through the object to be measured is calculated based on the detection result in the detecting unit 3. The measuring device 1 calculates the thickness of the object to be measured based on the calculated amount of attenuation of the radiation.

[0023] A housing 6 is provided above the detection unit 3. The housing 6 houses a control board (not shown) mounted with a detection circuit for detecting radiation dose and the like. FIG. 5 is a perspective view of the housing according to the first embodiment. The housing 6 includes a box body 7 and a lid body 8. The box body 7 and the lid body 8 are made of, for example, metal.

[0024] FIG. 6 is a perspective view of the box body. The box body 7 has a bottom plate 71 and box side walls 72. The bottom plate 71 is a rectangular plate-like member. The box side walls 72 are plate-like members that rise from each side of the bottom plate 71. In other words, the box body 7 is provided with four box side walls 72. An opening 73 surrounded by the four box side walls 72 is formed on the top surface of the box body 7. As shown in FIG. 5, the opening 73 is covered by a top plate 81 of the lid body 8, which will be described later. The space surrounded by the bottom plate 71 and the box side walls 72 is an accommodation space in which a control board is accommodated.

[0025] One of the four box side wall portions 72 is referred to as a first box side wall portion 721. The box side wall portion 72 facing the first box side wall portion 721 is referred to as a second box side wall portion 722. The box side wall portions 72 adjacent to and facing the first box side wall portion 721 and the second box side wall portion 722 are referred to as a third box side wall portion 723 and a fourth box side wall portion 724, respectively.

[0026] 3 and 4, the housing 6 is provided so that the second box side wall portion 722 faces the front panel 12 in the closed state. (See FIG. 1 for the front panel 12 in the closed state.) This can also be said as the housing 6 is provided so that the first box side wall portion 721 faces the rear panel 13.

[0027] The box body 7 is provided with a flange 74 extending from the top plate side end of the first box side wall portion 721 toward the second box side wall portion 722. The flange 74 overlaps with the top plate 81 covering the opening 73.

[0028] Two screw holes 74a are formed in the flange 74. The two screw holes 74a are formed spaced apart from each other in a direction (hereinafter simply referred to as the left-right direction) parallel to the side of the bottom plate 71 on which the first box side wall portion 721 is formed. For example, the screw holes 74a are formed in the left and right ends of the flange 74.

[0029] Two screw holes 722a are formed in the second box side wall portion 722. The two screw holes 722a are formed spaced apart from each other in the left-right direction. For example, the screw holes 722a are formed in the left and right ends of the second box side wall portion 722.

[0030] FIG. 7 is a perspective view of the lid. FIG. 8 is a perspective view of the lid seen from below. The lid body 8 has a top plate 81 and a lid side wall portion 82. The top plate 81 is a rectangular plate-like member. The top plate 81 covers the opening 73 of the box body 7 (see also FIG. 6). The top plate 81 has through holes 81a formed in positions that overlap with the screw holes 74a formed in the flange 74 of the box body 7. The positions and number of the through holes 81a can be changed as appropriate to match the positions and number of the screw holes 74a formed in the flange 74.

[0031] The lid sidewalls 82 are plate-like members that rise from three of the four sides of the top plate 81 toward the bottom plate 71. A first lid sidewall 821, which is one of the three lid sidewalls 82, is provided on the outside of the second box sidewall 722. The first lid sidewall 821 has through-holes 821a formed in positions that overlap with the screw holes 722a formed in the second box sidewall 722 of the box body 7. The positions and number of the through-holes 821a can be changed as appropriate to match the positions and number of the screw holes 722a formed in the second box sidewall 722.

[0032] Of the three lid side walls 82, the second lid side wall 822 and the third lid side wall 823 adjacent to the first lid side wall 821 face each other. The second lid side wall 822 is provided on the outside of the third box side wall 723 of the box 7, and the third lid side wall 823 is provided on the outside of the fourth box side wall 724 of the box 7.

[0033] The lid 8 is fixed to the box 7 using screws 91, which are fastening members. Specifically, a screw hole 74a formed in the flange 74 of the box 7 is aligned with a through hole 81a formed in the top plate 81 of the lid 8, and the screw 91 is screwed into the screw hole 74a. This fastens the flange 74 and the top plate 81 together with the screw 91. Furthermore, a screw hole 722a formed in the second box side wall 722 of the box 7 is aligned with a through hole 821a formed in the first lid side wall 821 of the lid 8, and the screw 91 is screwed into the screw hole 722a. This fastens the second box side wall 722 and the first lid side wall 821 together with the screw 91. In this way, the lid 8 can be fixed to the box 7 with the screw 91.

[0034] In the housing 6 according to the first embodiment, if the screws 91 can be tightened and loosened from both the second box side wall 722 side and the top panel 81 side, the lid 8 can be attached and detached to and from the box 7. That is, if the housing 6 can be accessed from the side where the second box side wall 722 is provided, the lid 8 can be attached and detached. Because the housing 6 is provided near the radiation emitter 2 that emits radiation, it is preferable that the work of attaching and detaching the lid 8 be completed in as short a time as possible from the viewpoint of worker safety. In the housing 6 according to the first embodiment, the lid 8 can be attached and detached by accessing it only from the side where the second box side wall 722 is provided, as described above, and therefore the work time can be shortened.

[0035] On the other hand, when fastening using screws 91 is performed on the side of the first box side wall portion 721 opposite the second box side wall portion 722, access to the housing 6 from the side of the second box side wall portion 722 is also required, making it difficult to shorten the work time.

[0036] Furthermore, in the measuring device 1, the lower rail 4 that supports the emitting unit 2 and the upper rail 5 that supports the detecting unit 3 are attached to the rear panel 13 (see also FIG. 4 ), so it is necessary to design the rear panel 13 to have a structure that suppresses rattles, etc. Therefore, it is difficult to design the rear panel 13 to be easily openable and closable like the front panel 12. Therefore, when the detecting unit 3 is incorporated inside the outer shell 11, it is difficult to access the housing 6 from the rear panel 13 side.

[0037] In the measuring device 1 according to the first embodiment, the housing 6 is arranged so that the second box side wall portion 722, which needs to be accessed when attaching or detaching the lid body 8, faces the front panel 12. Therefore, by opening the front panel 12, the lid body 8 can be attached or detached easily and quickly.

[0038] In order to prevent electromagnetic waves from entering the inside of the housing 6, it is desirable to have a labyrinth structure in which the box body 7 and the lid body 8 overlap on all four sides of the opening 73 formed in the top surface of the box body 7. Here, lid side walls 82 are provided on the outsides of the second box side wall 722, the third box side wall 723, and the fourth box side wall 724, and the overlap between the box side wall 72 and the lid side wall 82 prevents electromagnetic waves from entering.

[0039] On the other hand, the lid side wall 82 is not provided on the outside of the first box side wall 721, and a labyrinth structure in which the lid side wall 82 overlaps the outside of the first box side wall 721 is not formed. However, since the flange 74 that overlaps with the top plate 81 is formed on the box body 7, the labyrinth structure in which the top plate 81 and the flange 74 overlap prevents electromagnetic waves from entering.

[0040] In this way, a labyrinth structure is formed in which the box body 7 and the lid body 8 overlap on all four sides of the opening 73 formed on the top surface of the box body 7, preventing the penetration of electromagnetic waves. This eliminates the need to provide a gasket between the box body 7 and the lid body 8, thereby reducing the number of parts.

[0041] Furthermore, since the labyrinth structure is maintained even when the lid 8 is repeatedly attached and detached, the function of preventing the intrusion of electromagnetic waves does not deteriorate even when the lid 8 is repeatedly attached and detached.

[0042] After removing the lid 8, a worker may access and work on the control board housed inside the housing 6. Work on the control board is performed by inserting a tool or fingers into the interior through an opening 73 formed in the top surface of the box body 7. Therefore, the larger the area of ​​the opening 73, the easier the work becomes and the more efficient the work. Here, although a portion of the opening 73 is blocked by the flange 74, the flange 74 is provided on the first box side wall 721 side, opposite the second box side wall 722 that the worker accesses, and therefore, a decrease in work efficiency due to the provision of the flange 74 is suppressed.

[0043] Furthermore, since the lid side wall 82 is not provided on the outside of the first box side wall 721, the lid body 8 can be slid in the direction in which the front panel 12 is provided (hereinafter referred to as the front) and in the direction in which the rear panel 13 is provided (hereinafter referred to as the rear). Furthermore, the second lid side wall 822 and the third lid side wall 823 formed on the lid body 8 sandwich the box body 7, so that the second lid side wall 822 and the third lid side wall 823 function as guides when sliding the lid body 8 forward and backward. Therefore, the lid body 8 can be attached and detached by the simple task of sliding the lid body 8 in the forward and backward directions.

[0044] In this way, the number of parts is reduced, the lid 8 is easier to attach and remove, and the inside of the box 7 is easier to access, thereby improving the maintainability of the housing 6.

[0045] The number and positions of the screw holes 74a formed in the flange 74 are not limited to those illustrated. The number and positions of the screw holes 722a formed in the second box side wall portion 722 are not limited to those illustrated. For example, only one screw hole 74a or one screw hole 722a may be formed. When one screw hole 74a or one screw hole 722a is formed, it is desirable that it be formed in the center in the left-right direction. The number and positions of the through holes 81a and through holes 821a are matched to the number and positions of the screw holes 74a and 722a.

[0046] Furthermore, the fastening member is not limited to the screw 91. Figures 9 and 10 are diagrams showing other examples of the fastening member. The fastening member may be a snap lock 92 as shown in Figure 9. Note that the snap lock 92 has a different fastening direction than the screw 91 and therefore cannot be used to fasten the top plate 81 and the flange 74 together. The fastening member may also be a nylon latch 93 as shown in Figure 10. The snap lock 92 and nylon latch 93 allow members to be fastened and released with a simple action, further reducing the time required to attach and remove the lid 8.

[0047] <Other> Some examples of combinations of the disclosed technical features are set out below. <Additional Notes>

[0048] (1) A housing for accommodating a control board provided in a detector for detecting a dose of radiation emitted from an emitting unit having a radiation source, a box body having a rectangular bottom plate and box side walls extending from each side of the bottom plate, the box body having an opening on the top surface surrounded by the box side walls; a lid body having a rectangular top plate that covers the opening and lid side walls that extend from three of the four sides of the top plate toward the bottom plate, The box body is provided with a flange that extends from an end of a first box side wall portion, which is one of the plurality of box side walls, on the top plate side toward a second box side wall portion, which is one of the plurality of box side walls and faces the first box side wall portion, and overlaps with the top plate; a first lid side wall portion, which is one of the three lid side wall portions, is provided outside the second box side wall portion; a second lid side wall portion adjacent to the first lid side wall portion and a third lid side wall portion adjacent to the first lid side wall portion among the three lid side wall portions are provided outside a third box side wall portion and a fourth box side wall portion adjacent to the first box side wall portion and the second box side wall portion among the plurality of box side wall portions and facing each other; The housing in which the top plate and the flange can be fastened together by a fastening member.

[0049] (2) The housing according to (1), wherein the second box side wall portion and the first lid side wall portion can be fastened together by a fastening member.

[0050] (3) The fastening member is a screw, The flange and the second box side wall portion have screw holes formed therein, The housing according to (2) above, wherein the top plate and the first lid sidewall portion have through holes formed therein that overlap with the screw holes.

[0051] (4) The screw holes are formed in pairs in each of the flange and the second box side wall portion, spaced apart from each other in a direction parallel to the side on which the first box side wall portion is formed, The housing described in (3) above, wherein the through holes are formed in pairs on each of the top plate and the first lid side wall portion, spaced apart from each other in a direction parallel to the side on which the first box side wall portion is formed.

[0052] (5) The screw hole is formed in each of the flange and the second box side wall portion at the center in a direction parallel to the side on which the first box side wall portion is formed, The housing described in (3) above, wherein the through hole is formed in the center of each of the top plate and the first lid side wall portion in a direction parallel to the side on which the first box side wall portion is formed.

[0053] (6) A measuring device comprising: an outer shell having a front panel and a rear panel facing each other; a radiation unit housed in the outer shell and having a radiation source for emitting radiation; a detector for detecting the amount of radiation radiated from the radiation unit; and a housing according to any one of (1) to (5) attached to the detector, The front panel and the rear panel have openings formed in opposing positions, the openings extending in a horizontal direction, the emitting unit and the detector are attached to the rear plate so as to be movable in a horizontal direction, the housing is provided so that the second box side wall portion faces the front panel, The measuring device has a front panel that can be opened and closed. [Explanation of symbols]

[0054] 1. Measuring equipment 11 Outer body 12 Front plate 12a opening 13 Rear plate 13a aperture 14 Hinge 15 Electrical Equipment Department 16 Leg fittings 2 Radiation section 3. Detection unit 4 bottom rail 5 Top Rail 6. Housing 7 Box body 71 Bottom plate 72 Box side wall 721 First box side wall 722 Second box side wall 722a screw hole 723 Third box side wall 724 Fourth box side wall 73 Aperture 74 flange 74a screw hole 8 Lid 81 Top plate 81a through hole 82 Lid side wall 821 first lid side wall 821a through hole 822 second lid side wall 823 Third lid side wall 91 Screw 92 Snap Lock 93 Nylon Latch

Claims

1. A housing for accommodating a control board provided in a detector for detecting a dose of radiation emitted from an emission unit having a radiation source, a box body having a rectangular bottom plate and box side walls extending from each side of the bottom plate, the box body having an opening on the top surface surrounded by the box side walls; a lid body having a rectangular top plate that covers the opening and lid sidewalls that extend from three of the four sides of the top plate toward the bottom plate, The box body is provided with a flange that extends from an end of a first box side wall portion, which is one of the plurality of box side walls, on the top plate side toward a second box side wall portion, which is one of the plurality of box side walls and faces the first box side wall portion, and overlaps with the top plate; a first lid side wall portion, which is one of the three lid side wall portions, is provided outside the second box side wall portion; a second lid side wall portion adjacent to the first lid side wall portion and a third lid side wall portion adjacent to the first lid side wall portion among the three lid side wall portions are provided outside third box side wall portion and fourth box side wall portion adjacent to the first box side wall portion and the second box side wall portion among the plurality of box side wall portions and facing each other, The housing in which the top plate and the flange can be fastened together by a fastening member.

2. The housing according to claim 1 , wherein the second box side wall and the first lid side wall can be fastened together by a fastening member.

3. the fastening member is a screw, a screw hole is formed in the flange and the second box side wall portion; The housing according to claim 2 , wherein the top plate and the first cover side wall portion have through holes formed therein that overlap the screw holes.

4. the screw holes are formed in pairs in each of the flange and the second box side wall portion, spaced apart from each other in a direction parallel to a side on which the first box side wall portion is formed, The housing according to claim 3 , wherein the through holes are formed in pairs on each of the top plate and the first lid side wall portion, spaced apart from each other in a direction parallel to the side on which the first box side wall portion is formed.

5. the screw hole is formed in each of the flange and the second box side wall portion at the center in a direction parallel to the side on which the first box side wall portion is formed, The housing according to claim 3 , wherein the through-hole is formed in each of the top plate and the first lid side wall portion at the center in a direction parallel to the side on which the first box side wall portion is formed.

6. A measuring device comprising: an outer shell having a front panel and a rear panel facing each other; a radiation unit housed in the outer shell, having a radiation source and emitting radiation; a detector for detecting the amount of radiation radiated from the radiation unit; and the housing according to any one of claims 1 to 5 attached to the detector, The front panel and the rear panel have openings formed in opposing positions, the openings extending in a horizontal direction, the emitting unit and the detector are attached to the rear plate so as to be movable in a horizontal direction, the housing is provided such that the second box side wall portion faces the front panel, The measuring device has a front panel that can be opened and closed.

Images