WO2025046800A1 - Display device and electronic device - Google Patents

Abstract

A display device according to the present disclosure is attached to and detached from a control device and comprises: a connector unit provided with a connector electrically connected to the control device; and a support structure for displaceably supporting the connector unit.

Description

Display devices and electronic devices

This disclosure relates to display devices and electronic devices.

JP 2019-83273 A discloses a display device. A numerical control device provided in a machine tool is removably attached to the display device. The display device is also provided with a connector. The display device is electrically connected to the numerical control device via this connector.

Better technology is needed to prevent damage and deformation of the connectors installed in display devices.

The first aspect of the present disclosure is a display device that is detachable from a control device, and includes a connector unit having a connector that is electrically connected to the control device, and a support structure that supports the connector unit in a displaceable manner.

A second aspect of the present disclosure is an electronic device comprising the display device and the control device.

FIG. 1 is a rear perspective view of an electronic device according to an embodiment. FIG. 2 is an exploded view of the electronic device shown in FIG. FIG. 3 is a further exploded view of the electronic device shown in FIG. FIG. 4 is a rear view of the display device. FIG. 5 is an enlarged view of a portion of FIG. FIG. 6 is an exploded view of the connector unit. Fig. 7A is a cross-sectional view of the display device, and Fig. 7B is a cross-sectional view of the display device in a state different from that in Fig. 7A. FIG. 8 is a rear perspective view showing a part of the display device according to the first modified example. FIG. 9 is a cross-sectional view simply showing the inside of a control device according to the second modification. FIG. 10 is a plan view showing a part of a control device according to the third modification.

The display device may be provided with an engagement portion and a connector. The engagement portion is a member that can engage with a control device that is separate from the display device. The engagement portion is, for example, a snap fit that engages with a housing provided in the control device. The connector is electrically connected to the control device. The display device may be controlled by a signal supplied from the control device via the connector.

By the way, vibrations may be applied to the connector that electrically connects the display device and the control device. For example, the display device and the control device may be included in a numerical control device that controls a processing machine. Vibrations are generated when the processing machine is operating. The vibrations are transmitted to the control device and the display device to which the control device is attached. In this case, an engagement portion such as a snap fit cannot fully absorb the vibrations. As a result, a force caused by the vibrations is applied to the connector that electrically connects the display device and the control device. The force applied to the connector in this way may cause the connector to break, deform, etc.

In light of the above preliminary explanation, one embodiment is disclosed below.

The X direction (left-right direction) used in the following description is a direction parallel to the horizontal plane. The X direction includes the X1 direction, which is the right direction when viewing the display device 14 described below from the front, and the X2 direction, which is the left direction. The Y direction (up-down direction) used in the following description is a direction perpendicular to the horizontal plane. The Y direction includes the Y1 direction, which is the upward direction, and the Y2 direction, which is the downward direction (direction of gravity). The Z direction (front-back direction) used in the following description is a direction parallel to the horizontal plane and perpendicular to the X direction. The Z direction includes the Z1 direction, which is the forward direction, and the Z2 direction, which is the backward direction.

(One embodiment)
Fig. 1 is a rear perspective view of an electronic device 10 according to an embodiment. Fig. 2 is an exploded view of the electronic device 10 shown in Fig. 1. Fig. 3 is a further exploded view of the electronic device 10 shown in Fig. 2.

The electronic device 10 is, for example, a numerical control device provided in a machine tool. The machine tool is provided with the electronic device 10 and a processing machine (not shown) that is controlled by the electronic device 10. The processing machine is a machine that processes an object to be processed using a tool. The processing machine is, for example, a machining center, but is not limited to this. As shown in FIG. 1, the electronic device 10 is provided with a control device 12 and a display device 14.

As shown in FIG. 2, the control device 12 includes a housing 16 separate from the display device 14, multiple control boards 18 (181, 182), and an external connector 20. Multiple control boards 18 are provided inside the housing 16.

The multiple control boards 18 include a backboard 181. The multiple control boards 18 other than the backboard 181 are connected to the backboard 181. As a result, the multiple control boards 182 other than the backboard 181 can be connected to each other via the backboard 181. A control circuit (not shown) is mounted on the multiple control boards 18. The control circuit includes an electric circuit (electronic circuit) for controlling the processing machine and the display device 14 described above.

The external connector 20 is a connector for electrically connecting to the display device 14. The external connector 20 may be mounted on any one of the multiple control boards 18 as appropriate. For example, the external connector 20 may be mounted on the backboard 181. The above-mentioned control circuit provided in the control device 12 can output a signal to the display device 14 via the external connector 20. The signal includes, for example, a control signal for displaying information related to the control of the processing machine on the display device 14. The external connector 20 may be provided on, for example, the surface 181a of the backboard 181 facing the Y1 direction (see also FIG. 3), but is not limited to this.

1 and 2, the display device 14 has a front surface (front part) 14a, a rear surface (back part) 14b, a top surface (upper part) 14c, a bottom surface (lower part) 14d, and a side surface (side part) 14e. The front surface 14a is provided with a display screen (not shown). The control device 12 is attached to the rear surface 14b. Although not specifically shown, a display panel, light-emitting elements, etc. are appropriately provided between the front surface 14a and the rear surface 14b. That is, a display panel, light-emitting elements, etc. are appropriately provided inside the display device 14. The display panel includes, but is not limited to, a liquid crystal panel, for example. The light-emitting elements are, for example, light-emitting diodes (LEDs) that function as backlights for the liquid crystal panel, but are not limited to this. A more detailed explanation of the top surface 14c, the bottom surface 14d, and the side surface 14e is omitted.

The display device 14 includes an engagement portion 22, a rear panel 24, and a connector unit 26. More specifically, the rear panel 24 and the connector unit 26 are provided on the rear surface 14b of the display device 14.

The engaging portion 22 may be provided on the back surface 14b of the display device 14, but is not limited to this. The engaging portion 22 may also be provided on the side surface 14e, top surface 14c, or bottom surface 14d of the display device 14. The engaging portion 22 can engage with the control device 12. As shown in FIG. 2, the display device 14 may be provided with a plurality of engaging portions 22. The plurality of engaging portions 22 may include a plurality of snap fits 23 (231, 232).

FIG. 4 is a rear view of the display device 14. FIG. 5 is an enlarged view of a portion of FIG. 4.

The rear panel 24 is fixed to the rear panel 14b of the display device 14. More specifically, the rear panel 14b of the display device 14 has a board mounting section 28 on which a second circuit board 50 (described later) is provided (see also FIG. 3). The rear panel 24 is fixed so as to cover the board mounting section 28. The rear panel 24 has an opposing surface 24a facing the Z2 direction. The opposing surface 24a faces the control device 12. The rear panel 24 is formed of metal, but is not limited to this. For example, the rear panel 24 may be formed of resin. The rear panel 24 is fixed to the display device 14 by, for example, screws, but is not limited to this.

The rear panel 24 also has a cutout 30. This allows a portion of the board mounting section 28 to be exposed and not covered by the rear panel 24.

The connector unit 26 is provided on a portion of the rear surface 14b (board mounting portion 28) of the display device 14 that is not covered by the rear panel 24. More specifically, the connector unit 26 is located on a portion of the rear surface 14b that is exposed by the cutout portion 30. As shown in FIG. 4, the connector unit 26 includes a first circuit board 32, a first attachment 34, and a pair of second attachments 36.

Figure 6 is an exploded view of the connector unit 26.

The first circuit board 32 is provided with a first connector 38. The first connector 38 is a connector that can mate with the external connector 20 described above. When the first connector 38 and the external connector 20 mate with each other, the control device 12 can output a signal to the display device 14 via the external connector 20. The first connector 38 faces in the Z2 direction. Therefore, the first connector 38 and the external connector 20 can be attached and detached along the Z direction.

Furthermore, a plurality of board holes 40 are formed in advance in the first circuit board 32. Each of the plurality of board holes 40 is a hole that penetrates the first circuit board 32 along the thickness direction of the first circuit board 32. In this embodiment, the Z direction coincides with the thickness direction of the first circuit board 32. The plurality of holes includes a pair of first board holes 401 and a pair of second board holes 402. The plurality of holes further includes a pair of third board holes 403. It is preferable that the position of one third board hole 403 in the Y direction coincides as much as possible with the position of the other third board hole 403 in the Y direction. The function and role of the plurality of board holes 40 will be described later.

The first attachment 34 has a covering portion 42 and a pair of protruding portions 44.

The covering portion 42 is located in the Z2 direction relative to the first circuit board 32 and covers a part of the first circuit board 32. A pair of holes 42h into which the screw member 46 can be inserted are formed in advance in the covering portion 42. The holes 42h are, for example, through holes. In other words, the width dimension of the holes 42h may be longer than the diameter dimension of the body of the screw member 46. The pair of holes 42h may communicate with the pair of first board holes 401 described above.

Each of the pair of protruding portions 44 is a portion that protrudes from the covering portion 42 along a direction intersecting (orthogonal to) the Z direction. More specifically, the protruding portion 44 has a protruding base portion 44a and a step portion 44b. The protruding base portion 44a protrudes in the X direction or Y direction from the first circuit board 32 when viewed from the rear (when viewed from the front). The step portion 44b protrudes further in the X direction or Y direction from the protruding base portion 44a and is located in the Z1 direction relative to the covering portion 42 and the protruding base portion 44a. A more detailed explanation of the step portion 44b will be given later.

Each of the pair of second attachments 36 is a member that holds the first attachment 34. The second attachment 36 is arranged to sandwich the first circuit board 32 together with the covering portion 42 of the first attachment 34. In other words, the second attachment 36 is positioned in the Z1 direction relative to the first circuit board 32.

Each of the pair of second attachments 36 has a hole 36h and a protrusion 36p formed in advance. The hole 36h can be connected to the hole 42h of the first attachment 34 via the first board hole 401 described above. The hole 36h is a tapped hole with a screw groove formed therein. Therefore, the screw member 46 inserted into the hole 42h and the first board hole 401 can be screwed into the screw groove of the hole 36h. The protrusion 36p protrudes from the base 36a of the second attachment 36 along the Z2 direction. The protrusion 36p is a dowel that can engage with the second board hole 402 described above. By engaging the protrusion 36p with the second board hole 402, the relative positional relationship between the second attachment 36 and the first circuit board 32 can be easily determined. That is, the user can easily connect hole 36h to first board hole 401 by engaging protrusion 36p with second board hole 402.

As shown in Figures 3 to 5, the display device 14 further includes a support structure 52.

The support structure 52 is a structure that supports the above-mentioned connector unit 26 in a displaceable manner. The support structure 52 is provided on, for example, the back plate 24. That is, the connector unit 26 can be supported in a displaceable manner by the back plate 24. More specifically, the support structure 52 has a pair of pins 60, a restricting structure 62, and a pair of grooves 64, which will be described below.

The pair of pins 60 protrude from the rear panel 24 in the Z2 direction. That is, the protruding direction from the base end to the tip of the pin 60 coincides with the Z2 direction. Also, the base end direction from the tip to the base end of the pin 60 coincides with the Z1 direction. The pair of pins 60 are inserted into a pair of third board holes 403 formed in the first circuit board 32. The pair of pins 60 allow the first circuit board 32 (connector unit 26) to be displaced along the Z direction.

5 also shows the thickness L60 of the pin 60 and the opening dimension L403 of the third board hole 403. The thickness L60 is the dimension of the pin 60 in a predetermined direction intersecting (orthogonal to) the Z direction. The opening dimension L403 is the dimension of the third board hole 403 in the predetermined direction. The thickness L60 is smaller than the opening dimension L403 (L60<L403). This allows the first circuit board 32 (connector unit 26) to be displaced along the predetermined direction. The predetermined direction may include the X direction or the Y direction. The predetermined direction may include both the X direction and the Y direction (see also FIG. 5). The displacement width of the connector unit 26 in the predetermined direction can be regulated based on the difference between the thickness L60 and the opening dimension L403.

The opening dimension L403A, which is the opening dimension L403 of one of the pair of third substrate holes 403, and the opening dimension L403B, which is the opening dimension L403 of the other of the pair of third substrate holes 403, may be different from each other. For example, as shown in FIG. 5, the opening dimension L403A may be longer than the opening dimension L403B (L403A>L403B). The opening dimension L403B may be longer than the opening dimension L403A (L403B>L403A).

FIG. 7A is a cross-sectional view of the display device 14. A portion of the cross section taken along line VIIA-VIIA in FIG. 5 is shown in FIG. 7A.

The restricting structure 62 is a structure that restricts the movement range of the connector unit 26 in the Z direction. The restricting structure 62 has a first abutment portion 66 and a second abutment portion 68.

The first abutment portion 66 restricts the displacement of the connector unit 26 in the Z1 direction by abutting against the first circuit board 32. More specifically, the first abutment portion 66 includes a first abutment wall portion 66w. The first abutment wall portion 66w is a wall portion located in the Z1 direction relative to the first circuit board 32 provided in the connector unit 26. The first abutment wall portion 66w is provided at a position overlapping the first circuit board 32 supported by the pair of pins 60 in a front view (rear view). The first abutment wall portion 66w abuts against the first circuit board 32. As a result, the first abutment wall portion 66w restricts the displacement of the connector unit 26 in the Z1 direction. As shown in FIG. 7A, the pair of pins 60 may protrude from the first abutment wall portion 66w in the Z2 direction.

FIG. 7B is a cross-sectional view of the display device 14 in a state different from that of FIG. 7A. FIG. 7B shows a portion of the cross section taken along line VIIA-VIIA when the connector unit 26 in FIG. 7A is displaced in the Z2 direction.

The second abutment portion 68 abuts against the step portion 44b of the first attachment 34, thereby restricting the displacement of the connector unit 26 in the Z2 direction. More specifically, the second abutment portion 68 includes a second abutment wall portion 68w. The second abutment wall portion 68w is a wall portion located in the Z2 direction relative to the step portion 44b of the first attachment 34 of the connector unit 26. The second abutment wall portion 68w is provided at a position that overlaps with the step portion 44b of the protrusion portion 44 of the first attachment 34 in a front view (rear view). As shown in FIG. 7B, the second abutment wall portion 68w abuts against the step portion 44b. As a result, the second abutment wall portion 68w restricts the displacement of the connector unit 26 in the Z2 direction.

The separation distance LZ in the Z direction between the first abutment portion 66 and the second abutment portion 68 is shown in Figures 7A and 7B. The restriction structure 62 can restrict the movable range of the connector unit 26 in the Z direction to a range that corresponds to the separation distance LZ.

The pair of grooves 64 are located in the Y (Y2) direction relative to the second abutment portion 68 (FIG. 5). The pair of grooves 64 are formed so as to expose the pair of overhanging portions 44 when the first attachment 34 is slid in the Y (Y2) direction with the screw member 46 removed from the first attachment 34. In other words, the pair of grooves 64 are formed so as to release the overlap between the second abutment portion 68 (back panel 24) and the overhanging portion 44 when the first attachment 34 is slid in the Y (Y2) direction. This allows the user to easily remove only the first attachment 34 without removing the back panel 24 or the first circuit board 32 from the back surface 14b of the display device 14. After the first attachment 34 is removed, the user can remove the first circuit board 32 from the back surface 14b without removing the back panel 24 from the back surface 14b of the display device 14.

As shown in Figures 3 to 5, the display device 14 may further include a flexible cable 48 and a second circuit board 50. Note that the flexible cable 48 is omitted in Figure 3.

The flexible cable 48 is a flexible cable. The flexible cable 48 is, for example, a flat cable. The flexible cable 48 electrically connects the second circuit board 50 and the first circuit board 32 provided in the connector unit 26. It is preferable that the flexible cable 48 is detachable from at least one of the first circuit board 32 and the second circuit board 50.

The second circuit board 50 is fixed to the board mounting portion 28 on the back surface 14b of the display device 14 and is covered by the back plate 24. The second circuit board 50 is, for example, screwed to the board mounting portion 28. A processing circuit for processing signals input from the control device 12 via the first connector 38, the flexible cable 48, etc. may be mounted on the second circuit board 50. Note that a portion of the above-mentioned processing circuit may be provided inside the display device 14. In other words, a portion of the above-mentioned processing circuit may be provided between the front surface 14a and the back surface 14b of the display device 14.

The second circuit board 50 may be provided with a second connector 54. The second connector 54 is a connector to which the user interface unit 56 can be connected. The user interface unit 56 is provided with an interface connector, which is a connector (not shown) to which, for example, a portable recording medium can be connected. The portable recording medium is, for example, a USB (Universal Serial Bus) flash memory, a memory card, etc. In this case, the above-mentioned interface connector includes, for example, a USB connector, a memory card connector, etc. As shown in FIG. 3, one or more sockets 58 may be formed in the display device 14. The socket 58 is, for example, a through hole that penetrates the display device 14 along the Z direction. The above-mentioned interface connector is arranged in the socket 58, for example, via an opening end 58t on the Z2 direction side of the socket 58. In this case, the user can connect the portable recording medium to the user interface unit 56 by inserting the portable recording medium into the socket 58 through an opening end (not shown) on the Z1 direction side of the socket 58. As a result, the portable recording medium is connected to the electrical circuit mounted on the second circuit board 50 via the user interface unit 56.

The display device 14 having the above configuration and the control device 12 equipped with it can achieve the effects described below.

The display device 14 includes a support structure 52 that supports the connector unit 26 so that it can be displaced. This allows the connector unit 26 to be displaced in response to the vibration when the control device 12 vibrates. By allowing the connector unit 26 to be displaced in response to the vibration, the force applied to the first connector 38 provided in the connector unit 26 is reduced. This reduces damage, deformation, etc., to the first connector 38.

The support structure 52 has a pair of pins 60. The pair of pins 60 protrude from the rear surface 14b of the display device 14. The pair of pins 60 are inserted into a pair of third board holes 403 formed in the connector unit 26. As a result, the pair of pins 60 support the connector unit 26 while allowing the connector unit 26 to displace along the longitudinal direction of the pins 60. In this embodiment, the Z direction (front-rear direction) coincides with the longitudinal direction of the pins 60.

It is preferable that the position of one third board hole 403 in the Y direction and the position of the other third board hole 403 in the Y direction match as closely as possible. In other words, it is preferable that the pair of third board holes 403 are in the same position as each other in the Y direction (gravity direction). This prevents the first circuit board 32 supported by the pair of pins 60 from tilting with respect to the horizontal plane.

The thickness L60, which is the dimension of the pin 60 in a predetermined direction intersecting the longitudinal direction of the pin 60, is smaller than the opening dimension L403, which is the dimension of the third board hole 403 in the predetermined direction. This ensures a gap between the pin 60 and the third board hole 403. This gap allows the connector unit 26 to be displaced along the predetermined direction relative to the pin 60. As described above, in this embodiment, the Z1 direction coincides with the longitudinal direction of the pin 60. In this case, the predetermined direction includes at least one of the X direction and the Y direction.

[Correction under Rule 91 06.09.2024]
The opening dimension L403A, which is one of the opening dimensions L403 of the pair of third board holes 403, and the opening dimension L403B, which is the other opening dimension L403, may be different from each other. For example, the opening dimension L403A may be longer than the opening dimension L403B (L403A>L403B). It is easier to insert the pin 60 into the third board hole 403 having the opening dimension L403A than to insert the pin 60 into the third board hole 403 having the opening dimension L403B. The user can roughly position the first circuit board 32 on the back surface 14b of the display device 14 by inserting one of the pair of pins 60 into the third board hole 403 having the opening dimension L403A. The user can roughly position the first circuit board 32 and then insert the other of the pair of pins 60 into the third board hole 403 having the opening dimension L403B. This allows the user to easily attach the first circuit board 32 to the rear surface 14b. In this manner, according to the present embodiment, the user's workability can be improved.

The support structure 52 has a restriction structure 62 that restricts the range of movement of the connector unit 26 in the longitudinal direction (Z direction) of the pin 60. This prevents the connector unit 26 from displacing more than necessary along the Z direction.

The restricting structure 62 has a first abutment portion 66 that is located in the Z1 direction relative to the connector unit 26 (first circuit board 32). The first abutment portion 66 is provided in a position that overlaps with the connector unit 26 when viewed from the front-to-rear direction. This prevents the connector unit 26 from moving more than necessary in the Z1 direction. The Z1 direction coincides with the base end direction of the pin 60.

The restricting structure 62 has a second abutment portion 68 located in the Z2 direction relative to the connector unit 26. The second abutment portion 68 is provided in a position that overlaps with the step portion 44b of the first attachment 34 when viewed in the front-to-rear direction. This prevents the connector unit 26 from moving more than necessary in the Z2 direction. The Z2 direction coincides with the protruding direction of the pin 60.

The display device 14 includes a second attachment 36 that, together with the first attachment 34, sandwiches the first circuit board 32. The second attachment 36 is formed with a threaded groove that screws into a screw member 46 that is inserted through the first circuit board 32 and the covering portion 42 of the first attachment 34. As a result, the first attachment 34 is held by the second attachment 36 while covering the first circuit board 32.

The display device 14 includes a second circuit board 50 provided on the rear surface 14b. The display device 14 also includes a flexible cable 48 that electrically connects the connector unit 26 and the second circuit board 50. This means that even if the second circuit board 50, which is electrically connected to the connector unit 26, is fixed to the rear surface 14b, the connector unit 26 is not prevented from being displaced.

The user interface unit 56 is mounted on a second circuit board 50 fixed to the rear surface 14b. The user interface unit 56 is equipped with interface connectors (not shown), such as a USB connector and a memory card connector. The interface connectors are located in a socket 58, which is a through-hole formed in the display device 14. Because the second circuit board 50 is fixed to the rear surface 14b, even if the connector unit 26 is displaced, the interface connector is prevented from displacing relative to the socket 58. Therefore, the displacement of the connector unit 26 does not prevent the user from connecting a portable recording medium to the interface connector via the socket 58.

The second circuit board 50 is covered by the back plate 24. This protects the second circuit board 50 from damage caused by, for example, a collision between the second circuit board 50 and the control device 12.

The support structure 52 is provided on the back panel 24. This allows the user to complete maintenance when part of the support structure 52 is damaged, deformed, etc., by simply replacing the back panel 24.

The rear panel 24 has a cutout 30. The connector unit 26 is located in a portion of the rear panel 14b that is exposed by the cutout 30. Therefore, the rear panel 24 does not prevent the first connector 38 from being connected to the external connector 20. Furthermore, the user can view the connector unit 26 without removing the rear panel 24. Therefore, the user can maintain the connector unit 26 without removing the rear panel 24.

The rear panel 24 is formed with a groove portion 64 that can release the overlap between the protrusion portion 44 and the second abutment portion 68 when the first attachment 34 is slid in the Y (Y2) direction. This allows the user to remove the first attachment 34 and the first circuit board 32 from the rear surface 14b of the display device 14 without removing the rear panel 24 from the rear surface 14b. This allows the user to easily accomplish part replacement work related to the first attachment 34 or the first circuit board 32.

The surface of the first circuit board 32 and the surface of the second circuit board 50 are preferably parallel to the rear surface. In other words, the surface of the first circuit board 32 and the surface of the second circuit board 50 are preferably parallel to the X direction and the Y direction. In this way, the display device 14 can be realized to be relatively thin in the Z direction.

The engagement portion 22 that engages the display device 14 and the control device 12 has, for example, a snap fit 23. This allows the user to easily engage the display device 14 and the control device 12.

The electronic device 10 (numerical control device) according to this embodiment includes the display device 14 and the control device 12 described above. As described above, the display device 14 of this embodiment suppresses damage, deformation, etc. of the first connector 38. This can improve the reliability of the electronic device 10.

The control device 12 is equipped with a control circuit. The control circuit is capable of controlling a processing machine provided in the machine tool, and is capable of outputting a signal to the connector unit 26 for displaying information related to the control of the processing machine on the display device 14. The processing machine vibrates the electronic device 10 when it is operated. However, according to the electronic device 10 of this embodiment, damage, deformation, etc. of the first connector 38 caused by the vibration is suppressed. This can improve the reliability of the electronic device 10 according to this embodiment. In addition, the reliability of a machine tool equipped with the electronic device 10 as a numerical control device can be improved.

One embodiment may be modified as follows. In the following modified examples, explanations that overlap with the embodiment will be omitted as appropriate. Also, in the figures used in the following modified examples, the same reference numerals are used for configurations that are the same as those described in the embodiment.

(Variation 1)
FIG. 8 is a rear perspective view showing a part of the display device 14 (141) according to the first modification.

The display device 141 is provided with a connector unit 26 (261) according to this modified example. Compared to the connector unit 26 according to the first embodiment, the connector unit 261 differs at least in that it does not include the second attachment 36. That is, as shown in FIG. 8, the connector unit 261 includes a first circuit board 32 and a first attachment 34. The first circuit board 32 is provided with a pair of through-hole taps 70. The through-hole taps 70 are formed of, for example, metal. The through-hole taps 70 are formed with screw holes 70h that communicate with the holes 42h of the first attachment 34. As a result, the first attachment 34 is fixed to the first circuit board 32 by the screw members 46 attached to the through-hole taps 70 via the holes 42h.

In this modified example, the first attachment 34 is fixed to the first circuit board 32 without the second attachment 36.

(Variation 2)
FIG. 9 is a cross-sectional view simply showing the inside of the control device 12 (122) according to the second modification.

The control device 122 is provided with a structure that supports the external connector 20 in a displaceable manner. More specifically, the housing 16 (162) provided in the control device 122 has a slot 72 that can support the backboard 181. The dimension L72 of the slot 72 in the thickness direction of the backboard 181 is longer than the thickness dimension L181 of the backboard 181 (L72>L181). This allows the backboard 181 to be displaced in the thickness direction. Note that the thickness direction of the backboard 181 coincides with the Y direction, for example. When the backboard 181 can be displaced in the thickness direction, the external connector 20 mounted on the backboard 181 can also be displaced in the thickness direction together with the backboard 181. In this way, according to this modified example, the slot (structure) 72 supports the external connector 20 in a displaceable manner.

The dimension of the slot 72 in the X direction may be longer than the dimension of the backboard 181 in the X direction. Also, the dimension of the slot 72 in the Z direction may be longer than the dimension of the backboard 181 in the Z direction. This allows the external connector 20 to be displaced in the X direction or Z direction together with the backboard 181.

By allowing the external connector 20 to be displaced, the external connector 20 can also be displaced in response to, for example, the displacement of the connector unit 26. By displacing the connector unit 26 and the external connector 20 together, the force applied to the first connector 38 can be reduced.

Note that FIG. 9 shows a guide port 74 formed in the housing 162. The guide port 74 is an opening that allows the external connector 20 to be mated with the first connector 38 (see one embodiment). The first connector 38 can be mated with the external connector 20 by being inserted into the guide port 74. Although not shown in FIGS. 1 to 8, the guide port 74 may be formed in the housing 16 according to one embodiment.

(Variation 3)
Fig. 10 is a plan view showing a part of the control device 12 (123) according to Modification 3. Fig. 10 shows a plan view of the control device 123 as viewed from the rear (Z2 direction).

As shown in FIG. 10, the housing 16 (163) of the control device 123 is formed with not only the guide opening 74 (see variant 2) but also a pair of positioning holes 76. The pair of positioning holes 76 are formed in the housing 163 on the Z1 direction side.

A pair of pins 60 (see one embodiment) provided on the display device 14 are inserted into the pair of positioning holes 76. As described above, the pair of pins 60 are inserted into the pair of third substrate holes 403. The pair of pins 60 are inserted into the pair of positioning holes 76 via the pair of third substrate holes 403.

By inserting a pair of pins 60 into a pair of positioning holes 76, the control device 123 is positioned relative to the display device 14. More specifically, by inserting a pair of pins 60 into a pair of positioning holes 76, the control device 123 is positioned relative to the support structure 52 provided on the display device 14. In other words, the relative movement between the control device 123 and the support structure 52 is restricted. This reduces the load on the external connector 20, the backboard 181, the first connector 38, etc., caused by the relative movement between the control device 123 and the support structure 52.

(Variation 4)
The orientation of the first connector 38 is not limited to the Z2 direction. For example, the first connector 38 may be mounted on the first circuit board 32 in a state in which it faces the X direction or the Y direction.

(Variation 5)
As described above, one opening end 58t of the insertion port 58 is formed on the rear surface 14b. In this case, the position of the other opening end of the insertion port 58 is not limited to the front surface 14a of the display device 14, and may be the side surface 14e, the top surface 14c, or the bottom surface 14d of the display device 14. In other words, the portable recording medium may be connected to the user interface unit 56 via the side surface 14e, the top surface 14c, or the bottom surface 14d of the display device 14.

(Combination of multiple modified examples)
The above-described multiple modified examples may be combined as appropriate within a range that does not contradict each other.

According to the above embodiment and modified example, the display device 14 and the electronic device 10 can suppress damage, deformation, etc. of the first connector 38.

The following notes are further provided with respect to the above embodiment and modified examples.

(Appendix 1)
The display device (14) of the present disclosure is a display device that is detachably attached to a control device (12), and includes a connector unit (26) provided with a connector (38) that is electrically connected to the control device, and a support structure (52) that supports the connector unit in a displaceable manner.

(Appendix 2)
The display device may be the one described in Appendix 1, wherein the connector unit has a pair of holes (403) formed therein, the support structure has a pair of pins (60), the connector unit is supported so as to be displaceable in the longitudinal direction of the pins by inserting the pair of pins into the pair of holes, and the thickness (L60) of the pins is smaller than the opening dimension (L403) of the holes.

(Appendix 3)
The display device according to Supplementary Note 2 may be a display device in which the opening dimension of one of the pair of holes and the opening dimension of the other of the pair of holes are different from each other.

(Appendix 4)
The display device according to Supplementary Note 2 or 3 may be a display device, wherein the support structure has a regulating structure (62) that regulates a range of movement of the connector unit in the longitudinal direction of the pin.

(Appendix 5)
The display device described in Appendix 4 may be a display device in which the regulating structure is positioned in a first direction along the longitudinal direction of the pin relative to the connector unit and has a first abutment portion (66) that abuts against the connector unit to regulate movement of the connector unit in the first direction.

(Appendix 6)
The display device described in Appendix 5 may be a display device in which the regulating structure has a second abutment portion (68) located in a second direction opposite to the first direction relative to the connector unit and abutting against the connector unit to regulate movement of the connector unit in the second direction.

(Appendix 7)
The display device described in Appendix 6 may be a display device in which the connector unit includes a first circuit board (32) on which the connector is mounted and a first attachment (34) attached to the first circuit board, the first attachment having a protrusion (44) protruding from the first circuit board, and the second abutment portion abutting against the protrusion to restrict movement of the connector unit in the second direction.

(Appendix 8)
The display device according to any one of Supplementary Notes 2 to 7 may be a display device in which the pair of pins are inserted into a pair of positioning holes (76) formed in the control device.

(Appendix 9)
The display device described in any one of Appendices 1 to 8 may be a display device further comprising a second circuit board (50) provided on a rear portion (14b) of the display device, and a flexible cable (48) electrically connecting the connector unit and the second circuit board.

(Appendix 10)
The display device described in Supplementary Note 9 may be a display device further including a back plate (24) that covers the second circuit board and faces the control device.

(Appendix 11)
The display device according to claim 10, wherein the support structure is provided on the rear panel.

(Appendix 12)
The display device may be the display device described in Appendix 10 or 11, wherein the rear panel has a cutout portion (30), and the connector unit is located in a portion of the rear panel that is exposed by the cutout portion.

(Appendix 13)
The display device according to any one of claims 1 to 12 may be a display device comprising a snap fit (23) for engaging with said control device.

(Appendix 14)
An electronic device (10) according to the present disclosure is an electronic device including the display device according to any one of Supplementary Notes 1 to 13 and the control device.

(Appendix 15)
The electronic device according to claim 14, wherein the control device includes a structure (72) that displaceably supports an external connector (20) that is connected to the connector.

Although the present disclosure has been described in detail, the present disclosure is not limited to the individual embodiments described above. Various additions, substitutions, modifications, partial deletions, etc. are possible to these embodiments without departing from the gist of the present disclosure, or without departing from the gist of the present disclosure derived from the contents described in the claims and their equivalents. These embodiments can also be implemented in combination. For example, in the above-mentioned embodiments, the order of each operation and the order of each process are shown as examples, and are not limited to these. The same applies when numerical values or formulas are used to explain the above-mentioned embodiments.

10: Electronic device 12: Control device 14: Display device 14b: Back (rear)
20: external connector 23: snap fit 24: rear plate 26: connector unit 30: cutout portion 32: first circuit board 34: first attachment 38: connector (first connector)
42: Covering portion 44: Projection portion 48: Flexible cable 50: Second circuit board 52: Support structure 60: Pin 62: Restriction structure 66: First contact portion 68: Second contact portion 72: Structure (slot)
76: Positioning hole 403: Hole (substrate hole)
L60...Thickness L403...Opening size

Claims (15)

A display device that is detachable from a control device,
a connector unit provided with a connector electrically connected to the control device;
a support structure that supports the connector unit so as to be displaceable;
A display device comprising: The display device according to claim 1 ,
The connector unit is provided with a pair of holes.
The support structure includes a pair of pins;
The connector unit is supported so as to be displaceable in a longitudinal direction of the pins by inserting the pair of pins into the pair of holes,
A display device, wherein the pin has a thickness smaller than an opening dimension of the hole. The display device according to claim 2,
A display device, wherein the opening dimension of one of the pair of holes is different from the opening dimension of the other of the pair of holes. The display device according to claim 2 or 3,
The display device, wherein the support structure has a restriction structure that restricts a movement range of the connector unit in the longitudinal direction of the pin. The display device according to claim 4,
A display device, wherein the regulating structure is positioned in a first direction along the longitudinal direction of the pin relative to the connector unit, and has a first abutment portion that abuts against the connector unit to regulate movement of the connector unit in the first direction. The display device according to claim 5 ,
A display device, wherein the regulating structure is located in a second direction opposite to the first direction relative to the connector unit and has a second abutment portion that abuts against the connector unit to regulate movement of the connector unit in the second direction. The display device according to claim 6,
The connector unit includes:
a first circuit board on which the connector is mounted;
a first attachment attached to the first circuit board;
Equipped with
the first attachment has a protruding portion protruding from the first circuit board,
The second abutment portion abuts against the protrusion portion to restrict movement of the connector unit in the second direction. The display device according to any one of claims 2 to 7,
A display device, wherein the pair of pins are inserted into a pair of positioning holes formed in the control device. The display device according to any one of claims 1 to 8,
a second circuit board provided on the rear of the display device;
a flexible cable that electrically connects the connector unit and the second circuit board;
The display device further comprises: The display device according to claim 9 ,
The display device further comprises a back plate covering the second circuit board and facing the control device. The display device according to claim 10,
The display device, wherein the support structure is provided on the back panel. The display device according to claim 10 or 11,
The back plate has a cutout portion,
The connector unit is located in a portion of the rear portion that is exposed by the cutout portion. The display device according to any one of claims 1 to 12,
A display device comprising a snap fit that engages with the control device. An electronic device comprising the display device according to any one of claims 1 to 13 and the control device. 15. The electronic device of claim 14,
The electronic device includes a control device having a structure that displaceably supports an external connector that is connected to the connector.

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