JP4513828B2 - Speaker mounting structure and thin display device - Google Patents

Description

  The present invention relates to a speaker mounting structure to a cabinet composed of a front cabinet and a rear cabinet having a double structure with the front side covered with a front cover, and a thin display device employing the mounting structure.

  In recent years, a thin display device represented by a liquid crystal display device has been put into practical use, and such a thin display device is usually formed by a front front cabinet and a rear rear cabinet. A display device main body and a speaker for displaying an image are attached. Specifically, in the liquid crystal display device, the display device body includes a liquid crystal display panel, a drive circuit for driving the liquid crystal display panel, a tuner for receiving broadcast signals, a control circuit for controlling each part, and the like. The circuit board etc. which were made.

  Some thin display devices adopt a double structure in which the front side of the front cabinet is covered with a front cover. With this dual structure, the front cover protects the surface of the thin display device and decorates the appearance of the thin display device by using a surface with glossy coating or matte treatment, etc. It can promote the improvement of sex.

  FIG. 4 is an exploded perspective view showing the double structure of the front cover 2 and the front cabinet 3 from the rear. In general, the front cover 2 is provided with a display window portion 2a for displaying an image from the display device main body at the center, is formed in substantially the same shape as the front cabinet 3, and the back surface of the front cover 2 is the front cabinet 3. A claw 2b and a front cabinet coupling boss 2c are integrally formed of a plurality of resins.

  On the other hand, on the back surface of the front cabinet 3, a through hole 3b for fitting with the claw 2b of the front cover 2 and a front cover coupling hole 3c are integrally formed of resin. Thus, the front cover 2 is overlapped so as to store the front cabinet 3, and the claw 2b protruding inward from the side wall of the front cover is fitted into the corresponding hole 3b on the front cabinet 3, and then the boss 2c is accommodated. The front surface of the front cabinet 3 and the back surface of the front cover 2 can be tightly fixed by being fitted to the front cover coupling hole 3c and screwed.

  FIG. 5 is an exploded perspective view showing a conventional speaker mounting structure in the front cabinet 3 adopting this double structure, FIG. 6 is a perspective view of the front cabinet 3 showing a state after the speaker is mounted, and FIG. It is sectional drawing which expands and shows the speaker attachment location vicinity after 6 mounting | wearing. A plurality of through holes 3d are formed in the front cabinet 3 and the front cover 2 at locations where the speakers 6 are attached in order to send sound from the speakers 6 forward, and speakers are provided above and below the speaker attachment locations on the back of the front cabinet 3. A boss 3e for coupling the holder is projected.

  5 and 6, when the speaker 6 is attached to the front cabinet 3, first, the speaker 6 is placed on the speaker attachment portion on the back surface of the front cabinet 3, and the speaker holder 7 is vertically mounted on the back surface of the flange portion 6 a of the speaker 6. Abut on two places. Next, the boss 3e for connecting the speaker holder and the through hole formed in the speaker holder 7 are matched, and the speaker holder 7 and the front cabinet 3 are fixed by screwing. In this way, as shown in FIG. 7, the back surface of the flange portion 6 a is pressed by the speaker holder 7, and the speaker 6 is attached and fixed to the front cabinet 3.

In addition to the method of using the above speaker holder as a speaker mounting structure, a method of sandwiching and fixing a speaker between a front cabinet and a rear cabinet as disclosed in Patent Document 1, as disclosed in Patent Document 2 A method for fixing a speaker to a front cabinet using a fixing member by providing a speaker supporting boss on the front cabinet, and a speaker support on the side of a front cabinet coupling boss protruding from a rear cabinet as disclosed in Patent Document 3. Conventionally, a method has been proposed in which a rib is provided and a speaker is pressed and fixed by the rib.
Japanese Patent Laid-Open No. 11-289508 JP 2005-318168 A Japanese Published Patent Application No. 2-84496

  However, according to the speaker mounting structure using the speaker holder 7 shown in FIGS. 4 to 7, the speaker 6 is placed at a predetermined position on the front cabinet 3 when the speaker 6 is mounted, and then the penetration formed in the speaker holder 7. The holes and the speaker coupling bosses 3e need to be matched, and it is necessary to prepare a new screw for fixing the speaker holder 7 and the speaker holder 7, which is inefficient in terms of work efficiency and material cost.

  Similarly, in the mounting methods described in Patent Document 1 and Patent Document 2, a fixing member and a screw for fixing the speaker are necessary, and in the mounting method described in Patent Document 3, a rib for fixing the speaker is provided on the side of the boss. Since it is necessary to newly provide the manufacturing cost, it was not possible to sufficiently reduce the cost of the manufacturing process.

  Accordingly, in view of the above problems, the present invention eliminates speaker mounting members and screws such as speaker holders and reduces the number of parts to reduce the material cost, and also simplifies workability during speaker mounting and a speaker mounting structure thereof The object is to provide a thin display device adopting the structure.

Configuration of the present invention in order to achieve the above objects, in the speaker mounting structure for mounting the speaker to the cabinet of a combination of a front cabinet and a rear cabinet front cover has a fitted double structure on the surface, on the front cabinet is the opening of the inner diameter smaller than the flange portion of the speaker is provided in the speaker mounting portion, by the flange back is pressed toward the front cover to the peripheral edge of the opening, the speaker the front It is fixed between the cover and the front cabinet .

The present invention, in the thin display device that houses the display device main body and the speaker inside the cabinet that combines front cabinet and a rear cabinet, the front cover with the mating double structure on the surface side of the front cabinet, the the front cabinet has an opening of smaller inner diameter is provided the flange portion of the speaker to the speaker mounting portion, by the flange back is pressed toward the front cover to the peripheral edge of the opening, the A thin display device, wherein a speaker is sandwiched and fixed between the front cover and the front cabinet .

  According to the first configuration of the present invention, an opening having an inner diameter smaller than the flange portion of the speaker is provided in the speaker mounting portion of the front cabinet. Therefore, the speaker is placed on the speaker mounting portion on the back surface of the front cover. When the front cabinets are overlapped, the main body portion of the speaker penetrates from the opening to the rear cabinet side, and the rear surface of the flange portion of the speaker contacts the peripheral edge of the opening on the front cabinet surface.

  Therefore, by closely fixing the front cabinet and the front cover, the flange portion of the speaker is urged to the periphery of the front cabinet opening and pressed toward the front cover side, and the speaker is sandwiched and fixed between the front cover and the front cabinet. be able to.

  At this time, a conventional speaker mounting member such as a speaker holder and a screw used therefor are unnecessary, and the screwing operation for speaker mounting can be omitted, and the speaker can be fixed by mounting the front cabinet and the front cover. it can. Therefore, it is possible to reduce costs by reducing the number of parts and the number of work steps.

  Further, according to the second configuration of the present invention, as in the first configuration of the present invention, the front cabinet and the front cover are firmly fixed, so that the flange portion of the speaker is urged to the periphery of the opening of the front cabinet. Pressed and fixed to the cover side. As a result, the speaker can be sandwiched and fixed between the front cover and the front cabinet while reducing the number of parts and the number of work steps and reducing costs.

  Therefore, by combining the front cabinet and the rear cabinet to form a cabinet and housing the thin display main body therein to manufacture the thin display device, it is possible to reduce the cost of manufacturing the display device.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, the best mode for carrying out the invention will be described with reference to the drawings. In addition, the same code | symbol is attached | subjected to the part which is common in FIG.4 and FIG.7 of a prior art example, and description is abbreviate | omitted. Further, in these drawings, for easy understanding, the dimensional ratio of each member is different from the actual one, and the detailed configuration is omitted and conceptually shown. Hereinafter, the front surfaces of the front cabinet and the front cover mean surfaces facing the display device, and the back surface means the opposite surface.

  FIG. 1 is an exploded perspective view showing the front cover 2 and the front cabinet 3 in an exploded state, FIG. 2 is a perspective view showing the back surface of the front cabinet 3 after the speakers are attached, and FIG. FIG.

  Here, the liquid crystal display device according to the present embodiment is a liquid crystal display device in which a liquid crystal display device body is housed in a cabinet constituted by a front cabinet 3 on the front side and a rear cabinet (not shown) on the rear side. Although not shown, the main body of the apparatus is equipped with a liquid crystal display panel for displaying images, a drive circuit for driving the liquid crystal display panel, a tuner for receiving broadcast signals, a control circuit for controlling each part, etc. It consists of a circuit board.

  Further, as shown in FIG. 1, the front cabinet 3 adopts a double structure in which the surface is covered with the front cover 2 in the same manner as described above, and the speaker mounting structure according to the present invention uses this double structure. Then, the speaker 6 is sandwiched and fixed between the front cover 2 and the front cabinet 3. Here, the front cover 2 is formed in substantially the same shape as the front cabinet 3, and is fitted to the front surface of the front cabinet 3, and a plurality of claws 2b for coupling to the front cabinet 3 are provided on the back surface thereof, and the boss 2c. And a display window portion 2a for displaying an image from the liquid crystal display panel. In addition, a plurality of through holes 2d for sending sound from the speaker 6 to the viewer side are formed at the speaker mounting positions located on the left and right of the display window 2a.

  On the other hand, holes 3b and ribs and other supporting members (not shown) that fit the claws 2b of the front cover 2 at predetermined positions are provided on the surface of the front cabinet 3, and the rear cabinet and the liquid crystal display device main body are provided on the back surface of the front cabinet 3. A boss 3f and the like for coupling with the resin are integrally formed of resin, and a display window 3a for displaying an image from the liquid crystal display panel is provided at the center. Further, openings 8 having an inner diameter smaller than that of the flange portion 6a of the speaker 6 are provided at speaker mounting positions located on the left and right of the display window portion 3a.

  Next, the speaker mounting method according to the present invention will be described. First, the speaker main body 6b penetrates from the opening 8 to the back side of the front cabinet 3 by placing the speaker 6 on the speaker mounting location on the back of the front cover 2 and superimposing the front cabinet 3. At this time, the rear surface of the flange portion 6a of the speaker 6 comes into contact with the peripheral edge 8a of the opening on the surface of the front cabinet 3 (see FIG. 3).

  Next, the front cabinet coupling boss 2c projecting from the rear surface of the front cover 2 and the front cover coupling hole 3c formed in the front cabinet 3 are matched, and the front cabinet 3 and the front cover 2 are fixed tightly by screwing. To do. Thereby, the flange part 6a of the speaker 6 is urged | biased by the opening part periphery 8a of the front cabinet 3, and is pressed to the front cover 2 side. Thereby, the speaker 6 is clamped and fixed between the front cover 2 and the front cabinet 3.

  At this time, a conventional speaker holder is unnecessary, and a screw 10c for fixing the front cover 2 and the front cabinet 3 can be used. Therefore, the screwing operation for attaching the speaker 6 can be omitted, and the speaker 6 can be fixed only by the attaching operation of the front cabinet 3 and the front cover 2. For this reason, the number of parts and the number of work steps can be reduced to reduce costs.

  In addition, the front cabinet coupling boss 2c protruding from the rear surface of the front cover 2 is designed to be placed in a symmetrical position around the speaker 6 in the vicinity of the speaker mounting location, thereby stably pressing the flange portion 6a. Can do. Thereby, the pressing force of the opening peripheral edge 8a provided in the front cabinet 3 is different, and it is possible to prevent a force from being partially applied to the flange portion 6a, and to suppress deterioration in sound quality and reduction in sound volume. It is also possible to lighten the vibration from the speaker 6 by sandwiching a vibration damping member around the opening peripheral edge 8a of the front cabinet 3 in contact with the flange portion 6a.

  The liquid crystal display device is completed by attaching the liquid crystal display device main body to the display window 3a from the rear surface of the front cabinet 3, aligning the rear cabinet coupling bosses 3f with the holes provided in the rear cabinet, and screwing them. At this time, the liquid crystal display device according to the present embodiment can be expected to stabilize the sound range of the speaker 6 because the space behind the speaker 6 is not limited by the boss standing from the rear cabinet as shown in Patent Document 1.

  As mentioned above, although one Example of this invention was explained in full detail, this invention is not limited to the said Example, A various deformation | transformation implementation is possible within the range of the summary of this invention. For example, in the present embodiment, an example applied to a liquid crystal display device has been shown, but the present invention is not limited to a liquid crystal display device, and is a technique applicable to a plasma display, an organic EL display, and the like.

  Further, the front cover is not limited to the same shape as the front cabinet, and the problem of the present invention can be solved as long as the front cover overlaps at the speaker mounting position of the front cabinet.

  The present invention can be used for thin display devices such as liquid crystal displays, plasma displays, and organic EL displays.

FIG. 2 is an exploded perspective view showing a front cover and a front cabinet according to the present invention in an exploded manner. These are perspective views which show the back surface of the front cabinet by the speaker attachment structure concerning this invention. These are sectional drawings which expand and show the speaker attachment location vicinity by the speaker attachment structure concerning this invention. FIG. 5 is an exploded perspective view showing a double structure of a conventional front cover and front cabinet. FIG. 6 is an exploded perspective view showing a back surface of a front cabinet with a conventional speaker mounting structure. FIG. 6 is a perspective view of the rear surface of the front cabinet according to a conventional speaker mounting structure. These are sectional drawings which expand and show the speaker attachment location vicinity by the conventional speaker attachment structure.

Explanation of symbols

2 Front cover 2a Display window 2b Claw 2c Front cabinet coupling boss 2d Through hole 3 Front cabinet 3a Display window 3b Hole 3c Front cover coupling 3d Through hole 3e Speaker holder coupling boss 3f Rear cabinet coupling boss 6 Speaker 6a Flange 6b Speaker body 7 Speaker holder 8 Opening 8a Opening peripheral edge

Claims (2)

In the speaker mounting structure for mounting the speaker to the front cabinet and the cabinet of a combination of a rear cabinet having a double structure in which the front cover is fitted to the surface,
Wherein the front cabinet has an opening of smaller inner diameter is provided the flange portion of the speaker to the speaker mounting portion,
The speaker mounting structure , wherein the speaker is sandwiched and fixed between the front cover and the front cabinet by pressing the rear surface of the flange portion toward the front cover at the periphery of the opening . In a thin display device that houses a display device main body and speakers inside a cabinet that combines a front cabinet and a rear cabinet,
The front cover with the mating double structure on the surface side of the front cabinet,
Wherein the front cabinet has an opening of smaller inner diameter is provided the flange portion of the speaker to the speaker mounting portion,
A thin display device , wherein the speaker is sandwiched and fixed between the front cover and the front cabinet by pressing the rear surface of the flange portion toward the front cover at the periphery of the opening .

Images