JP2008310290A - Electrical substrate and image forming system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To achieve easy removal from a mainframe without applying any unreasonable force and to prevent the shielding effectiveness of electromagnetic wave from being reduced by improving the contact with the main body of equipment. <P>SOLUTION: An electric substrate, mounted detachably to the main body of the equipment is formed in a plate-like shape provided with a first end section and a second end section which is parallel to the first end section, comprises; a substrate body 11 equipped with electrical components;, a connector 15 which is installed on the first end section and can be electrically connected with a connector 14 of the main body of the equipment; a panel 12 which is equipped with a first surface and a second surface which is the back side of the first surface and is installed along the second end section on the second surface side to block an inserting hole of the electric substrate of the main body of the equipment with the first surface while the connector 15 is connected to the connector 14; and a handle 21 which is installed on the first surface and can be held by a user for removing the connector 15 from the connector 14. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an electrical board that is detachably mounted on an apparatus body, and a facsimile, a printer, a copier equipped with the electrical board, and an image forming apparatus such as a digital multifunction machine equipped with these functions.

  2. Description of the Related Art In image forming apparatuses such as facsimiles, printers, and copiers, it is widely practiced to detachably attach a main body electrical board or an optional electrical board to the apparatus body. For example, Patent Document 1 discloses that an electrical board mounting portion is provided detachably with respect to a storage portion provided in the apparatus main body, and the electrical board mounting portion is fixed to the storage portion. Patent Document 2 discloses that a guide rail is provided in a housing, and an electrical board is inserted along the guide rail.

  16 and 17 are diagrams showing an example of mounting of a conventional electrical board. In these figures, the board body 11 of the main controller is provided with a panel 12 that closes the insertion slot at one end, and is connected to a connector 14 provided on the body control board 13 at the other end that is the tip in the insertion direction. A connector 15 is provided. Both side portions parallel to the insertion direction of the substrate body 11 are supported by a pair of guide rails 16 provided in the apparatus body. When the board body 11 is mounted, both sides parallel to the insertion direction of the board body 11 are inserted into the recesses of the guide rail 16 and the panel 12 is pushed.

JP-A-5-272517 JP 2002-319774 A

  By the way, in the prior art, when removing the electric circuit board, as shown in FIGS. 16 and 17, there is no particular member for removal, so there is a method of directly pulling out the panel which is the sheet metal of the end face part by hand. It was taken. However, when the panel is directly pulled out in this way, the panel is distorted, the substrate body is warped, and the like, and the contact between the panel and the housing holding the substrate body may be deteriorated. Further, the panel has a shielding effect for preventing electromagnetic waves generated from the electrical board from leaking outside the housing. However, if the contact between the panel and the housing is poor, there will be a gap between the device body and the panel, so electromagnetic waves generated from the electrical board will leak out of the housing from this gap, and The shield effect is reduced.

  The present invention has been made in view of the above, and can be easily taken out from the apparatus main body without applying excessive force, and improves the contact between the shielding member and the apparatus main body, thereby shielding electromagnetic waves. It is an object of the present invention to obtain an electrical board and an image forming apparatus that prevent the decrease of the above.

  In order to solve the above-described problems and achieve the object, the invention according to claim 1 is an electrical board that is detachably mounted on the apparatus main body, wherein the first end and the first end are parallel to each other. A board body having a second end and formed in a plate shape on which electrical components are arranged, and a first connection part provided at the first end and electrically connectable to a connected part of the apparatus body And a second surface that is the back surface side of the first surface, and is provided along the second end portion on the second surface side, and the first connection portion is connected to the connected portion. A shielding member for closing the insertion hole of the electrical board of the apparatus main body with the first surface in a state of being connected to the device, and a user for removing the first connection portion from the connected portion provided on the first surface And a handle portion that can be gripped.

  According to another aspect of the present invention, there is provided an image forming apparatus in which an electric board is detachably mounted. The electric board is an electric board that is detachably mounted on a main body of the apparatus. The first end and the first end A board body formed in a plate shape having a parallel second end portion, on which electrical components are disposed, and a first body provided at the first end portion and electrically connectable to a connected portion of the apparatus body. A connecting portion; a first surface; and a second surface that is the back surface side of the first surface, provided along the second end portion on the second surface side, wherein the first connecting portion is connected to the covered surface. In order to remove the first connection portion from the connected portion, provided in the first surface with a shielding member for closing the insertion hole of the electrical board of the apparatus main body with the first surface in a state of being connected to the connection portion And a handle that can be gripped by the user.

  According to the present invention, since the grip portion that can be gripped by the user is provided on the shielding member provided along the end portion of the board body, the electrical board can be easily removed from the apparatus body without applying excessive force. It is possible to prevent the decrease of the shielding effect of the electromagnetic wave by improving the contact property between the shielding member of the electrical board and the apparatus main body.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, exemplary embodiments of an electrical board and an image forming apparatus according to the invention will be described in detail with reference to the drawings. In addition, the same reference number is attached | subjected to the component substantially the same as the prior art mentioned above, and the overlapping description is abbreviate | omitted.

(First embodiment)
1 and 2 are views showing a first embodiment of the present invention. FIG. 1 is a perspective view of a main part showing a state in which the electrical board according to the first embodiment is separated from the main body control board. FIG. 2 is a front view showing the electrical board according to the first embodiment.

  As shown in FIGS. 1 and 2, the electrical board according to the present embodiment mainly includes a board body 11, a connector 15, a panel 12, and a handle 21.

  The substrate body 11 is formed of a substantially rectangular plate-like member, and is provided with electrical components such as a CPU, a memory, and an HDD. The connector 15 is provided at the end 11a among the four sides forming the rectangle of the substrate body 11, and the panel 12 is provided at the end 11b which is a side parallel to the end 11a.

  The connector 15 is provided at the end 11a of the substrate body 11, and can be electrically connected by fitting with the connector 14 of the apparatus body (image forming apparatus body).

  The panel 12 is formed of a substantially rectangular plate-shaped member having a surface 12a and a surface 12b that is the back surface side of the surface 12a. The panel 12 is provided along the end portion 11b of the substrate body 11 on the surface 12b side. In a state where the electrical board is inserted into the apparatus main body from the insertion hole of the image forming apparatus and the connector 15 is connected to the connector 14, the panel 12 closes the insertion hole with the surface 12 a. A shielding effect is obtained.

  The handle 21 is provided on the surface 12 a of the panel 12 and can be held by a user in order to remove the connector 15 from the connector 14. The handle 21 is formed of a ring-shaped wire that can be folded with respect to the panel 12, and two handles 21 are provided at intervals in a direction orthogonal to the mounting direction of the electrical board. Further, the handle 21 is installed on the surface 12 a of the panel 12 at substantially the same level as the installation position of the connector 15 with respect to the board body 11.

  As described above, in the first embodiment, the handle 21 is provided on the panel 12 that is parallel to the surface orthogonal to the connection direction of the connector 15, that is, on the same surface as the connector 15. Thus, when the substrate body 11 is pulled out, it can be operated by raising it horizontally like the ring-shaped handle 21 on the left side in FIG.

  In addition, when mounted, it may be folded like the ring-shaped handle 21 on the right side in FIG. As a result, when the board body 11 is pulled out from a state where it is mounted on the apparatus body (not shown), a force for pulling out the connector 15 in the same direction as the insertion / extraction direction is applied, and the electrical board can be easily removed and when not used. Can be folded so it will not get in the way when not in use.

(Second Embodiment)
3 and 4 are views showing a second embodiment of the present invention. FIG. 3 is a main part perspective view showing a state in which the electrical board according to the second embodiment is separated from the main body control board. FIG. 4 is a front view showing the electrical board according to the second embodiment.

  As shown in FIGS. 3 and 4, the electrical board according to the present embodiment mainly includes a board body 11, a connector 15, a panel 12, and a handle 31. Here, since the substrate body 11, the connector 15, and the panel 12 are the same as those in the first embodiment, the description thereof is omitted.

  The handle 31 is formed of a rod-shaped member protruding from the panel 12 instead of the ring-shaped handle 21 in the first embodiment. An anti-slip slit 32 is formed on the outer peripheral surface of the handle 31. The handle 31 is installed on the surface 12 a of the panel 12 at substantially the same level as the installation position of the connector 15 with respect to the board body 11.

  Thus, since the handle 31 is rod-shaped, it is easy for the user to grip the handle 31 and to easily apply a gripping force. In addition, by providing the slit 32 in the handle 31, the grip force when removing the electric circuit board is ensured and the grip is further facilitated.

(Third embodiment)
5 and 6 are views showing a third embodiment of the present invention. FIG. 5 is a perspective view showing an image forming apparatus on which an electrical board according to the third embodiment is mounted. FIG. 6 is an enlarged view of the panel portion of the electrical board according to the third embodiment.

  As shown in FIGS. 5 and 6, the electrical board according to the present embodiment mainly includes a board body 11, a connector 15 (not shown), a panel 12, and a handle 41. An I / F cable 43 is connected to the electrical board via a connector 44. Here, since the substrate body 11, the connector 15, and the panel 12 are the same as those in the first embodiment, the description thereof is omitted. Further, when the panel 12 is inserted into the image forming apparatus 42, as shown in FIG. 6, the panel 12 is provided so as to fit inside the side surface of the image forming apparatus 42, that is, inside the main body.

  The I / F cable 43 serves as a transmission path for transmitting and receiving electrical signals between the main body of the image forming apparatus 42 and an external apparatus.

  The connector 44 is provided on the surface 12 a of the panel 12, and electrically connects the main body of the image forming apparatus 42 and an external device by inserting a terminal of the I / F cable 43.

  The handle 41 is a rod-shaped handle having a size larger than that of the rod-shaped handle 31 instead of the rod-shaped handle 31 in the second embodiment.

  Here, in the present embodiment, since the electrical board is inserted into the apparatus main body in a vertical state, when the terminal of the I / F cable 43 is connected to the connector 44, as shown in FIG. Protrudes substantially horizontally from the connector 44, but gradually extends in the vertical direction due to gravity. As a result, a curved portion having a curved shape is formed between the substantially horizontal portion and the substantially vertical portion.

  At this time, the protruding length of the handle 41, that is, the distance from the surface 12a of the panel 12 to the end of the handle 41 opposite to the panel 12 side is defined as a length L1. The distance from the position where the connector 44 is provided on the surface 12a of the panel 12 to the position of the insertion surface 44a where the terminal of the I / F cable 43 is inserted in the connector 44 is defined as a length H1. Furthermore, the longest distance from the insertion surface 44a of the I / F cable 43 in the connector 44 to the insertion surface of the curved portion of the I / F cable 43 is a length H2. In addition, the distance from the side surface of the image forming apparatus 42 on the side where the electrical board is attached / detached to the end of the handle 41 on the side opposite to the bonding side with the panel 12 is a length L2.

  At this time, in the present embodiment, the protrusion length L1 of the handle 41 is formed longer than the sum of the length H1 and the length H2, and the relationship of the following equation is established. L1> H1 + H2. The length L2 from the side surface of the image forming apparatus 42 to the end of the handle 41 is longer than the diameter of the I / F cable 43.

  When the protruding length L1 of the rod-like handle 41 is formed in such a length as described above, the handle 41 protrudes greatly from the main body of the image forming apparatus 42. It is possible to prevent a variety of cables such as the I / F cable 43 from being sandwiched between the apparatus main body and the wall. Also in this embodiment, a non-slip slit 32 may be provided on the outer peripheral surface of the rod-like handle 41 as in the second embodiment.

(Fourth embodiment)
7 and 8 are views showing a fourth embodiment of the present invention. FIG. 7 is a perspective view showing an image forming apparatus on which an electrical board according to the fourth embodiment is mounted. FIG. 8 is an enlarged view of the electrical board according to the fourth embodiment.

  As shown in FIGS. 7 and 8, the electrical board according to the present embodiment mainly includes a board body 11, a connector 15, a panel 12, a handle 51, and an HDD (Hard Disk Drive) 52. . Then, the electrical board is mounted on the image forming apparatus 42 in a vertical state, that is, a component placement surface that is a surface on which electrical components are placed is in a vertical state. Here, since the substrate body 11, the connector 15, and the panel 12 are the same as those in the first embodiment, the description thereof is omitted.

  The handle 51 protrudes from the surface 12a of the panel 12 and is formed of a plate-like member made of a sheet metal that is bent so that a finger is hooked. Further, the handle 51 is installed on the surface 12 a of the panel 12 at substantially the same level as the installation position of the connector 15 with respect to the board body 11. The protruding length of the handle 51 from the panel 12 may be formed longer than the sum (H1 + H2) of the length H1 and the length H2 as in the third embodiment. In this case, as in the third embodiment, various cables can be prevented from being sandwiched between the apparatus main body and the wall.

  Since the HDD 52 is a heavy object, as shown in FIG. 8, when the component placement surface of the board body 11 is in a vertical state, the HDD 52 is placed below the center line A with respect to the upper side and the lower side of the board body 11. ing. As described above, when there is a heavy object such as the HDD 52 in the detachable part, the heavy object is arranged below, and the work for attaching and detaching the electrical board is facilitated by maintaining the balance.

  If the HDD 52 cannot be positioned below the center line A of the HDD 52 due to the relative size between the HDD 52 and the substrate body 11, the center of gravity of the HDD 52 is positioned above the center line A. The HDD 52 is arranged so as to be positioned below. In the present embodiment, the HDD 52 is heavy, but the present invention is not limited to this, and the same applies to a heavy control device such as a floppy (registered trademark) disk.

(Fifth embodiment)
9 and 10 are views showing a fifth embodiment of the present invention. FIG. 9 is a perspective view showing a state in which the electrical board according to the fifth embodiment is mounted on the main body control board. FIG. 10 is a front view of the electrical board according to the fifth embodiment.

  As shown in FIGS. 9 and 10, the electrical board according to the present embodiment mainly includes a board body 11, a connector 15, a panel 12, a handle 51, and an HDD 52. The electrical board is mounted on the image forming apparatus 42 in a vertical state, that is, a component placement surface that is a surface on which electrical components are placed is in a vertical state. Here, since the substrate body 11, the connector 15, and the panel 12 are the same as those in the first embodiment, the description thereof is omitted. Further, since the HDD 52 is the same as that of the fourth embodiment, the description thereof is omitted.

  As in the fourth embodiment, the handle 51 is formed of a plate-like member and provided on the panel 12, and is near the center of gravity P of the substrate body 11, and below the center line of the substrate body 11 in FIG. 9. Is provided. That is, the handle 51 is provided at a position where the distance from the lower side to the center of the panel 12 in a state where the electrical board is mounted on the apparatus main body is substantially the same as the distance from the lower side of the panel 12 to the center of gravity of the substrate main body 11. It has been.

  Thus, by providing the position of the plate-like handle 51 near the center of gravity P of the substrate body 11, the balance of the substrate body 11 after being pulled out from the mounted state is maintained, and the removal work is facilitated.

(Sixth embodiment)
11 and 12 are views showing a sixth embodiment of the present invention. FIG. 11 is a perspective view showing a state in which the electrical board according to the sixth embodiment is mounted on the main body control board. FIG. 10 is a front view of the electrical board according to the sixth embodiment.

  As shown in FIGS. 11 and 12, the electrical board according to the present embodiment mainly includes a board body 11, a connector 15, a panel 12, a handle 51, and an HDD 52. The electrical board is mounted on the image forming apparatus 42 in a vertical state, that is, a component placement surface that is a surface on which electrical components are placed is in a vertical state. Here, since the substrate body 11, the connector 15, and the panel 12 are the same as those in the first embodiment, the description thereof is omitted. Further, since the HDD 52 is the same as that of the fourth embodiment, the description thereof is omitted. Further, the handle 51 is formed of a plate-like member and provided on the panel 12 as in the fourth embodiment.

  In the sixth embodiment, the plate-like handle 51 and the connectors 14 and 15 have a center of gravity P of the board body 11 in the vicinity of a straight line L connecting the center point of the handle 51 and the center point Q of the connectors 14 and 15. It is provided to be located. If the height of the handle 51 is the same as the lower end or upper end of the connectors 14 and 15, a force is applied only to the lower end or upper end of the connectors 14 and 15, and the connectors 14 and 15 are distorted upward or downward. Then, there is a possibility that it cannot be reliably joined. However, by configuring as in the sixth embodiment, a uniform force is applied to the connectors 14 and 15, so that the connectors can be reliably connected and detached, and the removal work is facilitated.

(Seventh embodiment)
FIG. 13 is a perspective view showing the electrical board according to the seventh embodiment together with the main body control board. As shown in FIG. 7, the electrical board is mounted on the image forming apparatus 42 in a vertical state, that is, a component placement surface that is a surface on which electrical components are placed is in a vertical state.

  As shown in FIG. 13, the electrical board according to this embodiment mainly includes a board body 11, a connector 15, a panel 12, a handle 51, an HDD 52, and a support plate 61. The electrical board is mounted on the image forming apparatus 42 with a component placement surface, which is a surface on which electrical components are placed, in a vertical state. Here, since the substrate body 11, the connector 15, and the panel 12 are the same as those in the first embodiment, the description thereof is omitted. Further, the HDD 52 and the handle 51 are the same as those in the sixth embodiment, and thus description thereof is omitted.

  The support plate 61 is formed in a plate shape, and the handle 51 and the HDD 52 are integrally fixed and integrated. Thus, by integrating the HDD 52 and the handle 51 which are heavy objects with the support plate 61, the strength can be increased, and distortion and deformation of the electrical board during removal can be prevented.

  Although not shown, in the case of a plate-like handle 51 made of a sheet metal bent so that a finger can be hooked, the plate-like handle 51 can be enlarged and also used as a cover for a slot for adding a memory card. It is.

(Eighth embodiment)
FIG. 14 is a perspective view showing an electrical board according to the eighth embodiment. As shown in FIG. 14, the electrical board according to the present embodiment mainly includes a board body 11, a connector 15, a panel 12, a handle 61, and a cover part 17. Here, since the substrate body 11, the connector 15, and the panel 12 are the same as those in the first embodiment, the description thereof is omitted.

  The cover portion 17 is bonded to the substrate body 11 and the panel 12, and together with the substrate body 11 and the panel 12, a rectangular parallelepiped having the substrate body 11 as a bottom surface and the panel 12 as one side surface is formed, and a connector 15 is formed inside the rectangular parallelepiped. It is a thing that paid.

  The handle 61 is formed of a bar-like member protruding from the panel 12, and the distance from the lower side of the panel 12 in a state where the electrical board is mounted on the apparatus main body is the distance from the lower side of the panel 12 to the center of gravity of the rectangular parallelepiped. It is provided in the position which becomes substantially the same. That is, in the present embodiment, the handle 61 is provided at the height position of the center of gravity of the rectangular parallelepiped with respect to the surface 12 a of the panel 12.

  Thus, by providing the cover part 17, it has the effect which prevents the radiation | emission of the noise from an electrical equipment board | substrate. Further, by providing the handle 61 at the height of the center of gravity of the entire rectangular parallelepiped in consideration of the weight of the cover portion 17, the balance of the substrate body 11 is maintained, and the removal work is facilitated.

  Further, the handle 61 may be configured to be movable with respect to the panel 12. In this case, the handle 61 can always be provided at the height of the center of gravity of the rectangular parallelepiped, even when the cover portions 17 having different weights are provided or the electrical components of the board body 11 are increased or decreased.

(Ninth embodiment)
FIG. 15 is a perspective view showing an electrical board according to the ninth embodiment. As shown in FIG. 15, the electrical board according to the present embodiment mainly includes a board body 11, a connector 15, a panel 12, a handle 61, and an extension board 18. Here, since the substrate body 11, the connector 15, and the panel 12 are the same as those in the first embodiment, the description thereof is omitted.

  The expansion board 18 is formed of a plate-like member, and each electrical component is arranged. The extension board 18 is provided above the board body 11 and bonded to the surface 12 b of the panel 12. That is, the panel 12 is provided on one end side of the extension board 18.

  The handle 61 is formed of a bar-like member protruding from the panel 12, and the distance from the lower side of the panel 12 in a state in which the electrical board is mounted on the apparatus main body is such that the lower side of the panel 12 It is provided at a position that is substantially the same as the distance to the center of gravity. That is, in the present embodiment, the handle 61 is provided at the height of the center of gravity of the substrate body 11 and the extension substrate 18 with respect to the surface 12 a of the panel 12.

  As described above, when the extension board 18 is provided in addition to the board body 11, the handle 61 is provided at the height of the center of gravity of the board body 11 and the extension board 18 in consideration of the weight of the extension board 18. The balance of the substrate body 11 is maintained, and the removal work becomes easy.

  Further, the handle 61 may be configured to be movable with respect to the panel 12. In this case, the handle 61 is always provided at the height of the center of gravity of the board body 11 and the extension board 18 even when the extension boards 18 having different weights are provided or when the electrical components of the board body 11 and the extension board 18 are increased or decreased. Can do.

  It should be noted that the present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. In addition, various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the above embodiments. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, constituent elements over different embodiments may be appropriately combined.

It is a principal part perspective view which shows the state which pulled away the electrical equipment board | substrate concerning 1st Embodiment from the main body control board. It is a front view which shows the electrical equipment board | substrate concerning 1st Embodiment. It is a principal part perspective view which shows the state which pulled away the electrical equipment board | substrate concerning 2nd Embodiment from the main body control board. It is a front view which shows the electrical equipment board | substrate concerning 2nd Embodiment. It is a perspective view which shows the image forming apparatus with which the electrical equipment board | substrate concerning 3rd Embodiment was mounted | worn. It is an enlarged view of the panel part in the electrical equipment board | substrate concerning 3rd Embodiment. It is a perspective view which shows the image forming apparatus with which the electrical equipment board | substrate concerning 4th Embodiment was mounted | worn. It is an enlarged view of the electrical equipment board concerning a 4th embodiment. It is a perspective view which shows the state which mounted | wore the main body control board with the electrical equipment board | substrate concerning 5th Embodiment. It is a front view of the electrical equipment board concerning a 5th embodiment. It is a perspective view which shows the state which mounted | wore the main body control board with the electrical equipment board | substrate concerning 6th Embodiment. It is a front view of the electrical equipment board concerning a 6th embodiment. It is a perspective view which shows the electrical equipment board | substrate concerning 7th Embodiment with a main body control board. It is a perspective view which shows the electrical equipment board | substrate concerning 8th Embodiment. It is a perspective view which shows the electrical equipment board | substrate concerning 9th Embodiment. It is a principal part perspective view which shows an example in the case of mounting | wearing with the conventional electrical equipment board | substrate. It is a principal part perspective view which shows an example in the case of removing the conventional electrical equipment board | substrate.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Board | substrate main body 11a, 11b End part 12 Panel 12a, 12b surface 13 Main body control board 14,15 Connector 16 Guide rail 17 Cover part 18 Expansion board 21, 31, 41, 51, 61 Handle 32 Slit 42 Image forming apparatus 43 I / F cable 44 connector 44a insertion surface 52 HDD
61 Support plate A Center line P Center of gravity

Claims (15)

In the electrical board that is detachably mounted on the device body,
A board body formed in a plate shape having a first end and a second end parallel to the first end, on which electrical components are disposed;
A first connecting portion provided at the first end portion and electrically connectable to a connected portion of the apparatus main body;
A first surface and a second surface that is the back surface side of the first surface, provided along the second end portion on the second surface side, and connecting the first connection portion to the connected portion; A shielding member for closing the insertion hole of the electrical board of the apparatus main body with the first surface in a state where
A handle that is provided on the first surface and that can be gripped by a user to remove the first connecting portion from the connected portion;
An electrical board comprising:   2. The electrical board according to claim 1, wherein the handle is formed of a ring-shaped member that is foldable with respect to the shielding member.   2. The electrical board according to claim 1, wherein the handle portion is formed of a rod-like member protruding from the shielding member.   4. The electrical board according to claim 3, wherein the handle portion is formed with a notch portion for preventing slippage on an outer peripheral surface of the rod-shaped member. A cable for transmitting and receiving electrical signals between the apparatus main body and an external device;
A second connecting portion provided on the first surface and electrically connecting the device main body and the external device by inserting a terminal of the cable;
The protruding length of the handle part is the length from the position of the first surface in the second connection part to the position of the insertion surface for inserting the cable terminal in the second connection part, and from the insertion surface to the cable. 5. The electrical board according to claim 3, wherein the curved portion is formed longer than a sum of a longest length from the insertion surface of the curved portion.   2. The electrical board according to claim 1, wherein the handle portion is formed of a plate-like member that protrudes from the first surface of the shielding member and has a bent portion for finger hooking.   7. The electrical equipment according to claim 1, wherein an installation position of the handle portion with respect to the shielding member is substantially the same level as an installation position of the first connection portion with respect to the substrate body. substrate. The electrical board is mounted on the apparatus main body with a component placement surface, which is a surface on which the electrical components are placed, in a vertical state,
A heavy article attached to the board body and further attached so that a center of gravity is located below a center line with respect to an upper side and a lower side of the board body in a state where the electrical board is mounted. Item 7. The electrical board according to any one of Items 1 to 6.   The handle is provided at a position where the distance from the lower side to the center of the shielding member when mounted on the apparatus main body is substantially the same as the distance from the lower side of the shielding member to the center of gravity of the substrate body. The electrical board according to claim 6, wherein:   The handle part and the first connection part are provided so that the center of gravity of the electrical board is located in the vicinity of a straight line connecting the center point of the handle part and the center point of the first connection part. The electrical board according to claim 6. The electrical board is connected to the apparatus main body with a component placement surface, which is a surface on which the electrical components are placed, in a vertical state,
10. The electrical board according to claim 6, further comprising a support member that integrally fixes the heavy object attached to the board body and the handle portion. 10. The substrate body and the shielding member are bonded to each other, and a rectangular parallelepiped is formed together with the substrate body and the shielding member, and further includes a cover portion having the first connection portion inside the rectangular parallelepiped,
The handle portion is provided at a position where the distance from the lower side of the shielding member when mounted on the apparatus main body is substantially the same as the distance from the lower side of the shielding member to the center of gravity of the rectangular parallelepiped. The electrical board according to claim 1. It further includes an expansion board formed in a plate shape,
The shielding member is further provided on one end side of the extension board,
The handle portion is located at a position where the distance from the lower side of the shielding member when mounted on the apparatus main body is substantially the same as the distance from the lower side of the shielding member to the center of gravity of the substrate body and the extension board. The electrical board according to claim 1, wherein the electrical board is provided. In an image forming apparatus that detachably mounts an electrical board,
The electrical board is
In the electrical board that is detachably mounted on the device body,
A board body formed in a plate shape having a first end and a second end parallel to the first end, on which electrical components are disposed;
A first connecting portion provided at the first end portion and electrically connectable to a connected portion of the apparatus main body;
A first surface and a second surface that is the back surface side of the first surface, provided along the second end portion on the second surface side, and connecting the first connection portion to the connected portion; A shielding member for closing the insertion hole of the electrical board of the apparatus main body with the first surface in a state where
A handle that is provided on the first surface and that can be gripped by a user to remove the first connecting portion from the connected portion;
An image forming apparatus comprising: A cable for transmitting and receiving electrical signals between the image forming apparatus and an external device;
A second connecting portion provided on the first surface and electrically connecting the device main body and the external device by inserting a terminal of the cable;
The protruding length of the handle portion is such that the distance from the side surface on the side where the electrical board is attached / detached to the end portion on the opposite side to the bonding side end portion with the shielding member is longer than the diameter of the cable. The image forming apparatus according to claim 14, wherein the image forming apparatus is an image forming apparatus.

Images