electronic equipment

Abstract

To provide an electronic instrument configured so that a control board and a back cabinet can be easily positioned in a center and fixed to the center, without using a special fixture.SOLUTION: An electronic instrument comprises an enclosure, a chassis arranged in the enclosure, a cabinet covering a back side of the chassis, and a substrate member arranged on the back side of the chassis. The substrate member comprises a first guiding part protruding in a direction of the back side, and the cabinet comprises a first part to be guided provided at a position overlapping with the first guiding part and a second guiding part protruding in a direction of a front surface thereof. The chassis or the substrate member comprises a second part to be guided provided at a position overlapping with the second guiding part. When the first guiding part is introduced into the first part to be guided and when the second guiding part is introduced into the second part to be guided, an interval between the second guiding part and the second part to be guided is smaller than an interval between the first guiding part and the first part to be guided.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present disclosure relates to an electronic device, and more particularly to an electronic device including a housing, a chassis, a cabinet, and a base member. [Background technology]

[0002] 2. Description of the Related Art Conventionally, electronic devices such as display devices have been disclosed. In a display device, for example, a substrate and a back cabinet are positioned and fixed by a fixture.

[0003] For example, Patent Document 1 discloses a display device including a back cabinet 8, a rear chassis 5, and a control board 7, and the control board 7 is provided with fasteners such as external connection terminals 7a, a heat sink 7b, and a resin spacer 7d. The spacer 7d is fitted into a through hole formed in the control board 7 and fixed to the control board 7. The back cabinet 8 is formed with a through hole 8a as a positioning member, which is shaped to match the shape of the external connection terminal 7a, and the control board 7 is positioned and fixed to the back cabinet 8 by, for example, engagement between the external connection terminal 7a and the through hole 8a. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2015-099292 Summary of the Invention [Problem to be solved by the invention]

[0005] However, although it is possible to position the board 7 formed on the rear chassis and the back cabinet 8, it is difficult to accommodate off-center alignment of the external terminal 7a of the control board 7 and the through-hole 8a of the back cabinet 8. Also, in order to allow the control board 7 to move freely relative to the rear chassis 5, multiple spacers fixed to the control board 7 are required.

[0006] In view of the above problems, the present disclosure aims to provide an electronic device in which a control board and a back cabinet can be easily positioned and fixed in the center without using special fixing devices. [Means for solving the problem]

[0007] In one aspect of the present disclosure, an electronic device includes a housing, a chassis arranged in the housing, a cabinet covering the back surface of the chassis, and a base member arranged on the back surface of the chassis, wherein the base member includes a first induction portion protruding toward the back surface, the cabinet includes a first induction portion arranged in a position overlapping with the first induction portion and a second induction portion protruding toward the front surface, the chassis or the base member includes a second induction portion arranged in a position overlapping with the second induction portion, and when the first induction portion is introduced into the first induction portion and when the second induction portion is introduced into the second induction portion, the distance between the second induction portion and the second induction portion is smaller than the distance between the first induction portion and the first induction portion. [Effects of the Invention]

[0008] As described above, according to the present disclosure, it is possible to provide an electronic device in which the control board and the back cabinet can be easily positioned and fixed in the center without using any special fixing tools. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 1 is a perspective view of an electronic device according to the present disclosure as viewed from the rear. [Figure 2] FIG. 2 is a diagram showing a first guided portion and a second guided portion provided in the cabinet. [Figure 3] FIG. 3 is an enlarged view of the periphery of the substrate member in FIG. [Figure 4] FIG. 4 is a front view of a substrate tray provided in an electronic device according to the present disclosure. [Figure 5]FIG. 5 is an image diagram of a cross section of the first guide portion and the second guide portion before they are introduced into the first guided portion and the second guided portion. [Figure 6] FIG. 6 is an image diagram of a cross section when the first guided portion and the second guided portion are introduced into the first guided portion and the second guided portion. [Figure 7] FIG. 7 is an image diagram of a cross section when the first guided portion and the second guided portion are introduced into the first guided portion and the second guided portion. [Figure 8] FIG. 8 is a front view of the second guide portion having ribs. [Figure 9] FIG. 9 is a side view of a second guide portion provided with a rib, showing that the tip end side of the rib has a tapered shape. [Figure 10] FIG. 10 is a diagram showing a first guided portion and a second guided portion provided in a cabinet, and shows that the tip of the second guide portion has a concave shape. [Figure 11] FIG. 11 is an enlarged perspective view of the second guide portion shown in FIG. [Figure 12] FIG. 12 is a cross-sectional view of FIG. DETAILED DESCRIPTION OF THE INVENTION

[0010] Preferred embodiments of the present disclosure will be described in detail below with reference to the drawings. Note that the embodiments described below do not unduly limit the content of the present disclosure described in the claims, and not all of the configurations described in the embodiments are necessarily essential to the solutions of the present disclosure. In addition, in the drawings, the +X direction of the X axis corresponds to the front side, the -X direction corresponds to the rear side, the Y axis corresponds to the width direction, and the Z axis corresponds to the height direction.

[0011] Fig. 1 is a perspective view of an electronic device 100 according to the present disclosure as viewed from the back. As shown in Fig. 1, the electronic device 100 according to the present disclosure includes a housing 10, a chassis 20 arranged in the housing 10, a cabinet 30 covering the back surface of the chassis 20, and a board member 40 arranged on the back surface of the chassis 20.

[0012] The electronic device 100 according to the present disclosure is a display device such as a television or a display.

[0013] The housing 10 houses the components of the electronic device 100 .

[0014] The chassis 20 is disposed inside the housing 10. The chassis 20 also holds and fixes the substrate member 40, a light guide plate, a reflective sheet, and the like (not shown).

[0015] The cabinet 30 covers the rear surface of the chassis 20 as shown in Fig. 1. The cabinet 30 also includes a second guiding portion 52a as shown in Fig. 2. The second guiding portion 52a is a convex member that protrudes toward the front surface and is guided into a second guiding portion 52b, which will be described later.

[0016] Furthermore, the cabinet 30 includes a first guided portion 51b. The first guided portion 51b is, for example, a hole large enough to allow a first guided portion 51a (described later) to be inserted therethrough. As shown in Fig. 2, a plurality of first guided portions 51b may be provided. Also, a plurality of second guided portions 52a may be provided.

[0017] As shown in FIG. 3, the board member 40 has a first guide portion 51a that protrudes toward the back surface. The first guide portion 51a is a convex-shaped protruding member provided on the board member 40, and may be, for example, a terminal. The board member 40 also has a second guided portion 52b. The first guided portion 51a is introduced into the first guided portion 51b described above. The second guided portion 52b is introduced into the second guided portion 52a described above. The second guided portion 52b is a hole large enough to allow the second guided portion 52a to pass through. A plurality of 51a may be provided. A plurality of second guide portions 52b may also be provided.

[0018] In this manner, the cabinet 30 shown in Fig. 2 is attached to the back surface of the base member 40 disposed on the back surface of the chassis 20 shown in Fig. 3. That is, the first guiding portion 51a is guided into the first guided portion 51b, and the second guiding portion 52a is guided into the second guided portion 52b, so that the cabinet 30 is guided to the correct position when attached to the back surface of the chassis 20.

[0019] 3, the board member 40 may include a control board 45 that controls electronic components included in the electronic device 100, and a board tray 46 that holds the control board 45, as shown in FIG. 4. In such a case, the first guiding portion 51a is provided on the control board 45 and / or the board tray 46. The first guided portion 51b is provided on the cabinet 30.

[0020] Fig. 5 is a cross-sectional image diagram of the first guided portion 51a and the second guided portion 52a before they are introduced into the first guided portion 51b and the second guided portion 52b. Fig. 6 is a cross-sectional image diagram of the first guided portion 51a and the second guided portion 52a when they are introduced into the first guided portion 51b and the second guided portion 52b. As shown in Figs. 5 and 6, when the cabinet 30 is attached to the rear surface of the chassis 20 in the direction of the arrow, the first guided portion 51a is introduced into the first guided portion 51b, and the second guided portion 52a is introduced into the second guided portion 52b.

[0021] At this time, when the first guiding portion 51a is introduced into the first guiding portion 51b and when the second guiding portion 52a is introduced into the second guiding portion 52b, the distance s2 between the second guiding portion 52a and the second guiding portion 52b is smaller than the distance s1 between the first guiding portion 51a and the first guiding portion 51b. In other words, the distance s1>s2.

[0022] By doing so, when the cabinet 30 is attached to the rear surface of the chassis 20, the first guiding portion 51a such as a terminal can be positioned at the center of the first guiding portion 51b such as a hole, thereby preventing off-centering. Furthermore, even if the first guiding portion 51b attempts to move to a position off-center relative to the first guiding portion 51a when the cabinet 30 is attached to the rear surface of the chassis 20, the second guiding portion 52a abuts against the periphery of the second guiding portion 52b, thereby restricting the movement of the cabinet 30 and reducing the off-centering of the first guiding portion 51a and the first guiding portion 51b. Therefore, the appearance quality is not degraded and is maintained in a good condition.

[0023] Conventionally, when a cabinet is attached to the rear of a chassis, the weight of the cabinet can cause it to shift downward (in the -Z direction). Furthermore, in order to allow the board member 40 to move freely relative to the chassis, multiple resin spacers must be fixed to the board member 40, which increases costs. Furthermore, since the board member 40 moves freely relative to the chassis, the workability of connecting signal lines to the board member 40 is reduced. Furthermore, because the board member 40 is not fastened to the chassis 20 with screws or the like via a metal material, there are concerns about deterioration in resistance to static electricity and radiation, and a new metal material is required to connect the board member 40 to the chassis.

[0024] Therefore, according to the electronic device 100 according to the present disclosure, the above-mentioned disadvantages can be eliminated.

[0025] More preferred embodiments will be described in detail below.

[0026] Fig. 7 is an enlarged view of VII in Fig. 6, and is an image diagram of a cross section when the first guide portion 51a and the second guide portion 52a are introduced into the first guided portion 51b and the second guided portion 52b. As shown in Fig. 7, the tip side of the second guide portion 52a preferably has a tapered portion 52c having a tapered shape.

[0027] By doing this, when the cabinet 30 is attached to the back of the chassis 20, the second guiding portion 52a can easily enter the second guided portion 52b, and even if the second guiding portion 52a is initially misaligned with the second guided portion 52b, its position is automatically corrected, making it easier for the second guiding portion 52a to be smoothly introduced into the second guided portion 52b.

[0028] 7, when the second guiding portion 52a is introduced into the second guided portion 52b, the tapered portion 52c is preferably located closer to the front than the substrate member 40, that is, closer to the front than the surface t40 of the substrate tray 46 (40) in the X direction. When the substrate member 40 is only the control board 45, the tapered portion 52c is located closer to the front than the control board 45. When the substrate member 40 is the control board 45 and the substrate tray 46, the tapered portion 52c is located closer to the front than the control board 45 and the substrate tray 46.

[0029] If the tapered portion 52c is not located closer to the front side than the base member 40, for example, if the tapered portion 52c is located within the thickness of the base member 40, the diameter of the second guiding portion 52a having the tapered portion 52c is smaller than the diameter of the second guiding portion 52a at a location without the tapered portion 52c, and therefore rattles may occur when the second guiding portion 52a is introduced into the second guided portion 52b. Therefore, by positioning the tapered portion 52c closer to the front side than the base member 40, rattles can be reduced when the cabinet 30 is attached to the rear surface of the chassis 20.

[0030] Although the second guiding portion 52a shown in FIG. 7 and other figures is longer than the first guiding portion 51a, it may be the same length as or shorter than the first guiding portion.

[0031] Fig. 8 is a front view of the second guide portion 52a including the ribs 52d. Fig. 9 is a side view of the second guide portion 52a including the ribs 52d. As shown in Figs. 8 and 9, the second guide portion 52a preferably includes at least four or more ribs 52d extending axially on the outer ring of the second guide portion 52a.

[0032] By doing so, when the second guided portion 52a is introduced into the second guided portion 52b, the provision of the rib 52d changes the contact from surface to line, making it easier to introduce the second guided portion 52a into the second guided portion 52b during introduction, and making it easier to attach the cabinet 30 to the back surface of the chassis 20. Furthermore, when attempting to fine-tune the off-center position of the first guided portion 51a relative to the first guided portion 51b, the diameter of the second guided portion 52a can be adjusted by adjusting the dimension of the rib 52d, making it possible to easily accommodate dimensional changes due to design changes, etc.

[0033] Furthermore, it is preferable that the tip end side of the rib 52d has a tapered shape as shown in Fig. 9. This makes it possible to make the above-mentioned fine adjustment even easier.

[0034] Fig. 10 is a diagram showing the first guided portion 51b and the second guided portion 52a provided in the cabinet 30, and shows that the tip of the second guided portion 52a has a concave shape. Fig. 11 is an enlarged perspective view of the second guided portion 52a shown in Fig. 10. Fig. 12 is a cross-sectional view of Fig. 11.

[0035] 10, 11, and 12, the tip of the second guided portion 52a may be formed in a concave shape that covers the second guided portion 52b. In this case, the second guided portion 52b has a convex shape that fits along the concave shape.

[0036] In this way, by forming the tip of second guiding portion 52a into a concave shape that covers second guided portion 52b, second guided portion 52b can guide second guided portion 52a without second guided portion 52b being a hole. Furthermore, after guiding, second guided portion 52a can be fixed with screws 60 as shown in Fig. 12, which improves the mounting strength of cabinet 30 to chassis 20.

[0037] In this embodiment, a rib 52d may be provided on the inside of the recess at the tip of the second guiding portion 52a, as shown in Fig. 11. This makes it easier for the second guiding portion 52a to be guided to the second guided portion 52b.

[0038] Also, only the tip side of the second guide portion 52a may be tapered, or the entire second guide portion 52a may be tapered (trapezoidal in cross section).

[0039] As described above, according to electronic device 100 according to the present disclosure, control board 45 and back cabinet 30 can be easily positioned and fixed in the center without using any special fixing tools.

[0040] Although each embodiment and each example of the present disclosure have been described in detail above, it will be readily apparent to those skilled in the art that many modifications are possible without substantially departing from the novel features and effects of the present disclosure. Therefore, all such modifications are intended to be included within the scope of the present disclosure.

[0041] For example, a term described at least once in the specification or drawings together with a different term having a broader or similar meaning can be replaced with that different term anywhere in the specification or drawings. Furthermore, the configuration and operation of the electronic device are not limited to those described in each embodiment and each example of the present disclosure, and various modifications are possible. [Explanation of symbols]

[0042] 10 housing, 20 chassis, 30 cabinet, 40 board member, 45 control board, 46 board tray, t40 X-direction surface of board tray, 51a first guiding portion, 51b first guided portion, 52a second guiding portion, 52b second guided portion, 52c tapered portion, 52d rib, 60 screw, 100 electronic device

Claims

1. a housing, a chassis disposed in the housing, and a cabinet covering a rear surface of the chassis; a substrate member disposed on a rear surface of the chassis, the substrate member includes a first guide portion protruding toward the rear surface, the cabinet includes a first guided portion provided at a position overlapping the first guide portion, and a second guide portion protruding in a front direction; the chassis or the board member includes a second guided portion provided at a position overlapping the second guide portion, when the first induction portion is introduced into the first induction portion and when the second induction portion is introduced into the second induction portion, a distance between the second induction portion and the second induction portion is smaller than a distance between the first induction portion and the first induction portion; the substrate member includes a control substrate and a substrate tray; The electronic device is characterized in that the second guided portion is provided in a position on the board tray that does not overlap with the control board.

2. The electronic device according to claim 1 , wherein the second guide portion has a tapered portion at a tip end thereof.

3. 3. The electronic device according to claim 2, wherein when the second induction portion is introduced into the second induction portion, the tapered portion is located closer to the front side than the substrate member.

4. 4. The electronic device according to claim 1, wherein the second guide portion includes at least four ribs extending in the axial direction on an outer ring of the second guide portion.

5. 5. The electronic device according to claim 4, wherein the tip end of the rib is tapered.

6. the second guide portion has a convex shape, 6. The electronic device according to claim 1, wherein the second guided portion is an opening provided in the substrate member.

7. a tip end of the second guided portion has a concave shape that covers the second guided portion, 6. The electronic device according to claim 1, wherein the second guided portion has a convex shape that conforms to the concave shape.

Images