JP2017142350A - Display device and extension board receptor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display device and extension board receptor that surely position extension boards having different thickness as receiving the extension boards, and can take even countermeasures against an EMI.SOLUTION: The present invention relates to a display device that has a reception unit receiving extension boards B and B1 for extending functions. In the display device 1, the reception unit includes: a first container 11 and a second container 25 that form a reception space for receiving the extension board; a variable part M that makes volume of the reception space Q vary due to movements of the first container 11 and second container 25 for receiving the extension boards B and B1 having different thickness; and an urging unit R that is composed of an elastic body urging the variable part M so as to vary the volume in conformity with the different thickness of the extension boards B and B1 when the extension boards B and B1 are inserted into the reception space Q.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a display device and an expansion board container, and more particularly to a display device and an expansion board container that can accommodate an expansion board for expanding functions.

  The demand for monitors (display devices) is increasing. The number and types of terminals required for the display device differ according to user demand. When a display device that meets all these demands is manufactured, the cost on the production side increases. For this reason, the display device is equipped with terminals and functions with high user demand as standard. The display device is configured to meet the demands of users by attaching an expansion board separately to terminals other than standard terminals. In addition, the thickness of the display device is required to be reduced because of the design property or because the installation in a narrow place is being demanded. Accordingly, the expansion board will be changed to a thinner one. In order to cope with a user having a thin extension board or a thick extension board, a display device capable of accommodating two types of boards is required.

  A method of providing a plurality of insertion openings can be considered as a method of making two types of expansion boards having different thicknesses (the same width, depth, and connector height) correspond to the display device. However, when such a method is taken, it is necessary to secure a mounting area corresponding to two types of insertion openings in the display device.

  Patent Document 1 discloses a structure including changing means for changing the size of an opening for inserting an insert (modular plug) having a different size. In this structure, a lid that is slidable in accordance with the thickness of the insert is provided in the opening.

Japanese Patent Laid-Open No. 10-3958

When the structure according to Patent Document 1 is applied to a display device for accommodating expansion boards of different sizes, there is a problem that the expansion board B is not reliably positioned when a thin expansion board is inserted (FIG. 13). reference). Thereby, in this structure, there is a risk that the connectors G1 and G2 of the extension board and the display device may collide with each other and be damaged. Also, with this structure, a gap is generated between the extension board and the display device, and there is a possibility that the influence of EMI (Electro-Magnetic Interference) will deteriorate.
An object of the present invention is to provide a display device and an expansion board container that can reliably position an expansion board while accommodating different thicknesses and can also take measures against EMI.

One aspect of the present invention is a display device having a housing portion that houses an expansion board for expanding functions,
The accommodating portion includes a first container and a second container that form an accommodating space for accommodating the expansion board;
A variable portion that changes the volume of the accommodation space by moving the first container and the second container to accommodate the expansion boards having different thicknesses;
An urging portion made of an elastic body that urges the variable portion so as to change the volume according to the different thickness of the expansion board when the expansion board is inserted into the accommodation space;
It is a display device.

One aspect of the present invention is an expansion board container for accommodating an expansion board for expanding functions,
A first container and a second container forming a storage space for storing the expansion board;
A variable portion that changes the volume of the accommodation space by moving the first container and the second container to accommodate the expansion boards having different thicknesses;
An urging portion made of an elastic body that urges the variable portion so as to change the volume according to the different thickness of the expansion board when the expansion board is inserted into the accommodation space;
It is an expansion board container.

  According to the display device and the expansion board container according to the present invention, it is possible to reliably position the expansion board having different thicknesses while taking measures against EMI.

It is the perspective view seen from the back direction of the display apparatus concerning a 1st embodiment of the present invention. It is the perspective view which showed the state which inserts an expansion board in a display apparatus. It is the perspective view which showed the container which accommodates an expansion board. It is the perspective view which showed the container seen from another direction. It is a disassembled perspective view of a container. It is sectional drawing which shows the state in which the container was attached inside the display apparatus. It is a side view which shows the state by which the thin expansion board was inserted in the container. It is sectional drawing which shows the state by which the thick type expansion board was inserted in the container. It is a side view which shows the state by which the thick type expansion board was inserted in the container. It is sectional drawing of the container concerning 2nd Embodiment of this invention. It is a modification of the container concerning 1st Embodiment. It is a modification of the container concerning 2nd Embodiment. It is the figure which showed the problem when not using this invention.

[First Embodiment]
Hereinafter, embodiments of a display device according to the present invention will be described with reference to the drawings.

  As shown in FIGS. 1 and 2, the back surface 2 of the display device 1 is provided with an insertion port 3 for inserting the expansion board B. The insertion port 3 is usually covered with a lid 4. The insertion port 3 is provided with an opening corresponding to the thickness of the thick extension board B. When the expansion board B is attached to the display device 1, the lid 4 is removed and the expansion board is inserted from the insertion port 3. As shown in FIGS. 3 and 4, a container 10 for housing the expansion board B is provided inside the insertion port 3. The expansion board B is inserted into the container 10 from the insertion direction P.

  As shown in FIG. 5, the container 10 has a storage space Q (FIG. 3) in which the expansion board B is stored in a first container (chassis) 11 and a second container (chassis) 25 having a portal section in the width direction. Reference). The first container 11 is fixed to the display device 1 side in the display device 1. The first container 11 includes a rectangular plate-like body 11a. In the vicinity of both ends in the width direction (Y direction) of the plate-like body 11a, rails 14 and 15 projecting upward (Z direction) so as to be parallel to both ends are formed. The rails 14 and 15 are formed in a trapezoidal cross section with respect to the insertion direction P (−X direction).

  The rails 14 and 15 are formed, for example, by performing press molding on the plate-like body 11a. Thus, the rails 14 and 15 serve as guides when the expansion board B is inserted. Further, the rails 14 and 15 can reduce friction when the extension board B is inserted. At both ends in the width direction of the plate-like body 11a, flanges 17 and 18 are formed toward the external space.

  Holes 19 for hooking the springs 23 are formed in the flanges 17 and 18, respectively. The springs 23 are provided in pairs on the flanges 17 and 18. Both ends of the spring 23 are formed in a hook shape and are hooked in the holes 19. The plate-like body 11 a is fixed to the display device 1 side by the flanges 17 and 18. At both ends in the width direction of the plate-like body 11a, rectangular side plates 12 and 13 standing upward with respect to the plate-like body 11a are provided. The side plates 12 and 13 serve as guides when the expansion board B is inserted. The side plates 12 and 13 are respectively provided with guide pins 16 projecting toward the external space in the vicinity of both ends. A screw hole 16 a for fixing the screw C is formed in the guide pin 16.

  The first container 11 and the second container 25 are combined by the guide pin 16. The second container 25 includes a rectangular plate-like body 25a. In the vicinity of both ends in the width direction (Y direction) of the plate-like body 25a, rails 26 and 27 protruding downward (−Z direction) so as to be parallel to both ends are formed. The rails 26 and 27 are formed in a trapezoidal cross section with respect to the insertion direction P (−X direction). The rails 26 and 27 are formed, for example, by performing press molding on the plate-like body 25a. Thus, the rails 26 and 27 serve as guides when the expansion board B is inserted.

  Further, the rails 26 and 27 can reduce friction when the expansion board B is inserted. At both ends in the width direction of the plate-like body 25a, rectangular side plates 28, 29 hanging downward with respect to the plate-like body 25a are provided. Guide holes 30 for guiding the guide pins 16 are provided in the vicinity of both ends of the side plates 28 and 29, respectively.

  When the first container 11 and the second container 25 are combined, the side plates 28 and 29 are overlapped on the outer surface side of the side plates 12 and 13. At that time, the guide pin 16 is guided into the guide hole 30, and the second container 25 is slidable in the vertical direction (± Z direction) with respect to the first container 11. That is, each guide pin 16 and each guide hole 30 constitute a sliding portion (variable portion M) of the container 10. Due to the movement of the first container 11 and the second container 25, the volume of the accommodation space Q is changed by the variable portion M. When the guide pin 16 contacts the upper end of the guide hole 30, the downward displacement of the second container 25 is restricted. The side plates 28 and 29 are provided with a pair of collars 31 so as to protrude toward the external space.

  A screw hole 31 a for fixing the screw C is formed in the collar 31. When the first container 11 and the second container 25 are combined, springs 23 provided on the flanges 17 and 18 are respectively hooked on the collar 31 (see FIGS. 3 and 4). A screw C is screwed into the collar 31 to prevent the spring 23 from falling off.

  The length of the spring 23 is adjusted so that a tensile force T is generated when it is hooked on the collar 31 (see FIG. 3). As a result, an urging force F1 is applied to each collar 31 (see FIG. 3). The urging force F is applied to the second container 25 in the direction approaching the first container 11 via the collars 31 by the resultant force of the urging forces F1 generated by the springs 23. That is, each spring 23 and each collar 31 constitute an urging portion R of the container 10. That is, the urging portion R urges the variable portion M in the direction in which the second container 25 is proximal to the first container 11. Any spring 23 may be used as long as it is an elastic body. The urging force F prevents the second container 25 from being detached from the first container 11.

  As shown in FIGS. 6 and 7, the container 10 is attached inside the display device 1. Inside the display device 1, a connector (second connection portion) V <b> 2 for electrical connection with a connector (first connection portion) V <b> 1 included in the expansion board B is provided. Since the container 10 has a storage space Q suitable for the thickness of the thin expansion board B in a normal state, the expansion board B is inserted as it is. The first container 11 is attached to a position where the connector V1 and the connector V2 are connected when the expansion board B is inserted. When the expansion board B is inserted in the insertion direction P from the insertion port 3, the expansion board B contacts the rails 14 and 15 and the rails 26 and 27 when the expansion board B enters the accommodation space Q of the container 10. .

  When the expansion board B is further inserted, the expansion board B enters the accommodation space Q. At this time, the rails 14 and 15 and the rails 26 and 27 are kept in contact with the expansion board B by the urging force F acting on the second container 25. The height with respect to the insertion direction P of the expansion board B is not changed by the urging force F. That is, the urging force F of the urging portion R urges the second container 25 in a direction in contact with the expansion board B, and positions the expansion board at a position where the connector V1 and the connector V2 are connected. In this state, since the first container 11 and the second container 25 are kept in contact with the expansion board B to ensure conduction, the influence on EMI is also good.

  As shown in FIGS. 8 and 9, when the thick expansion board B <b> 1 is inserted, the expansion board B <b> 1 pushes up the second container 25 and expands the volume of the accommodation space Q. Even in this state, the rails 14 and 15 and the rails 26 and 27 continue to contact the expansion board B by the urging force F acting on the second container 25. Since the height of the thick expansion board B1 from the bottom surface of the connector V1 is the same as the height of the connector V1 of the thin expansion board B, the second container 25 is expanded by the urging force F of the urging portion R. The expansion board is positioned at a position where the connector V1 and the connector V2 are connected. Even in this state, the first container 11 and the second container 25 are kept in contact with the expansion board B1 to ensure conduction, so that the influence on EMI is good.

  As described above, according to the display device 1 having the container 10, the expansion boards B and B1 having different thicknesses can be accommodated from the single insertion port 3. Thereby, the display apparatus 1 does not need to increase each mounting area for accommodating the expansion boards B and B1 which have different thickness. When the display device 1 accommodates the expansion boards B and B1 having different thicknesses, the expansion boards B and B1 are placed at positions where the connectors V1 of the expansion boards B and B1 and the connector V2 on the display device 1 side are connected. Positioning can be ensured. Further, according to the display device 1, since the first container 11 and the second container 25 are kept in contact with the expansion boards B and B1, and the conduction is ensured, EMI countermeasures can be performed simultaneously.

[Second Embodiment]
The container for accommodating the expansion board B can be changed as appropriate. In the following description, the same names and symbols are used as appropriate for the same configuration as the first embodiment, and the same description is omitted as appropriate.

  As shown in FIG. 10, the container 50 attached in the display device 1 may use a leaf spring 53 for the urging portion R2. The plate-like second container 55 is provided in the first container 51 having a rectangular cross section, and is moved up and down by a plate spring 53 to change the volume of the accommodation space Q2. That is, in the container 50, the urging portion R2 is a variable portion M2. In other words, the variable portion M2 includes the urging portion R2 that urges the second container 55 in the direction in which the storage volume of the accommodation space Q2 decreases.

  As described above, the expansion boards B and B1 having different thicknesses can also be accommodated by the container 50. When the expansion boards B and B1 having different thicknesses are accommodated by the container 50, the expansion boards B and B1 are located at positions where the connectors V1 of the expansion boards B and B1 and the connectors V2 on the display device 1 side are connected. Can be reliably positioned. Moreover, since the container 50 also keeps the first container 51 and the second container 55 in contact with the expansion boards B and B1, EMI countermeasures can be performed simultaneously.

  In addition, this invention is not limited to the said embodiment, It is possible to change suitably in the range which does not deviate from the meaning. For example, as shown in FIG. 11, the method for attaching the spring 23 in the container 10 may be modified. Further, as shown in FIG. 12, in the container 50, the leaf spring 53 may be replaced with a string spring 59. Further, the urging portion and the variable portion used in the above embodiment may be formed integrally with either the first container or the second container. And the attachment method and arrangement | positioning of each component used by the said embodiment may be changed suitably in order to produce the same effect as the above.

DESCRIPTION OF SYMBOLS 1 Display apparatus 2 Back surface 3 Insertion port 4 Cover 10 Container 11 1st container 11a Plate-shaped body 12, 13 Side plate 14, 15 Rail 16 Guide pin 16a Screw hole 17, 18 Flange 19 Hole 23 Spring 25 Second container 25a Plate shape Body 26, 27 Rail 28, 29 Side plate 30 Guide hole 31 Collar 31a Screw hole 50 Container 51 First container 53 Plate spring 55 Second container 59 String spring B, B1 Expansion board C Screw M Variable part M2 Variable part Q Internal space Q2 Housing space R Energizing part R2 Energizing part V1 Connector V2 Connector

Claims (7)

A display device having an accommodating portion for accommodating an expansion board for expanding functions,
The accommodating portion includes a first container and a second container that form an accommodating space for accommodating the expansion board;
A variable portion that changes the volume of the accommodation space by moving the first container and the second container to accommodate the expansion boards having different thicknesses;
An urging portion made of an elastic body that urges the variable portion so as to change the volume according to the different thickness of the expansion board when the expansion board is inserted into the accommodation space;
Display device. The biasing portion biases the variable portion in a direction in which the second container is proximal to the first container.
The display device according to claim 1. The first container is attached to a position where a second connection part for electrically connecting to a first connection part of the extension board is connected;
The urging portion urges the second container in a direction in contact with the expansion board when the expansion board is inserted into the accommodation space, and the first connection portion and the second connection portion are connected. Positioning the expansion board in a position to be
The display device according to claim 1. The variable part has a sliding part for sliding the second container relative to the first container.
The display device according to claim 1. The variable portion includes the urging portion that urges the second container in a direction in which the volume of the accommodation space decreases.
The display device according to claim 1. The second container is housed in the first container;
The display device according to claim 5. An expansion board container for accommodating an expansion board for expanding functions,
A first container and a second container forming a storage space for storing the expansion board;
A variable portion that changes the volume of the accommodation space by moving the first container and the second container to accommodate the expansion boards having different thicknesses;
An urging portion made of an elastic body that urges the variable portion so as to change the volume according to the different thickness of the expansion board when the expansion board is inserted into the accommodation space;
Expansion board container.

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