JP4062830B2 - Electrical component mounting structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a component mounting structure capable of easily and securely mounting and removing electrical components used in electronic equipment.
[0002]
[Prior art]
Many of the electrical components used in electronic devices are directly attached to the main board. For example, there are electrical parts arranged away from the main board, such as speakers, LED boards, switch boards, power supply boards, etc. .
[0003]
Taking a speaker as an example, an example of a conventional mounting structure for the electrical component will be described with reference to FIG.
[0004]
In FIG. 4, 50 is an electronic device casing, 51 is a boss provided on the casing 50, 52 is a speaker, 53 is a speaker cable, 54 is a speaker positioning frame, 55 is a mounting spring, 56 is a screw, and 57 is a cable. Stop. The speaker 52 is placed in the positioning frame 54, the mounting spring 55 is placed on the boss 52, and fastened by the screw 56. The attachment spring 55 is an attachment structure in which a spring material is bent and the speaker 52 is pressed against the casing 50 by the elastic force of the spring and fixed. Finally, the speaker cable 53 is processed by the cable stopper 57, and the mounting operation is completed. This mounting method has the following problems.
(1) Screw fastening work is required for installation. If there are other electrical components such as a battery beside the speaker, a screw fastening operation for fastening the electrical components is required, which is troublesome.
(2) Since it is attached by pressing, it is easy to slide laterally.
(3) The screw may be loosened. If the screw is stopped with a lock material or the like, it will not loosen but it will be difficult to remove.
(4) It is necessary to fix the speaker cable using another member.
[0005]
As another conventional method, there is a method using an adhesive. In this case, the fixing force is sufficient, but there are problems such as requiring time to dry the adhesive and difficulty in removal.
[0006]
[Problems to be solved by the invention]
The present invention solves the above-mentioned problems. The mounting of the electrical parts is simple, the fixing force between the electrical parts and the apparatus body is large, and the electrical parts can be easily removed during inspection and repair. The purpose is to provide a structure.
[0007]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the present invention provides an electronic device body with a mounting frame for electrical components, and covers the electrical sheet placed above the electrical components placed on the mounting frame, and the electrical components are placed on the resin sheet and the electrical components. It is an attachment structure that is sandwiched and fixed between frames. In order to ensure the fixing force, an adhesive layer is provided on one surface of the resin sheet, thereby increasing the fixing force between the resin sheet and the electrical component. Further, a press-fitting support column is provided near the mounting frame for the electric component, and a press-fitting hole provided in the resin sheet is engaged with the press-fitting support column so that the resin sheet is pressed against the electric component.
[0008]
Thus, it is possible to provide a component mounting structure that can easily and reliably attach and remove electrical components used in electronic devices.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
According to a first aspect of the present invention, there is provided a housing of an electronic device having a mounting frame and a press-fit post, a press-fit hole engaged with the press-fit post, and a resin sheet having an adhesive layer on one side. The resin sheet is placed above the electrical component so that the electrical component placed on the mounting frame faces the adhesive layer, the press-fitting hole is engaged with the press-fit post, and the resin sheet is The adhesive layer and the electrical component are adhered to each other by being pushed down along the support column, and the resin sheet is pressed against the electrical component by the elastic force of the resin sheet, and the electrical component is placed on the resin sheet. It is a component mounting structure characterized in that an electrical component is fixed to the housing by being sandwiched between the frame and the resin sheet and the electrical component are fixed by surface adhesion, and the elastic force of the resin sheet Wrapping electrical parts Nde fixing force between the electrical component and the housing because there are certainly. Further, since the fastening is performed by using the pressing force applied to the press-fitting strut and the press-fitting hole, there is an effect that the attaching / detaching work can be easily performed.
[0010]
The invention according to claim 2 of the present invention is characterized in that, in the invention according to claim 1, the resin sheet is provided with an opening for avoiding uneven contact between the deformed electrical component and the resin sheet. Thus, it becomes easy to mount the odd-shaped electric parts.
[0011]
According to a third aspect of the present invention, in the invention according to the first aspect, the height of the electrical component placed on the placement frame is adjusted to a predetermined height by the placement frame. The plurality of electrical components having different shapes and sizes can be easily fixed with a single resin sheet.
[0012]
Invention of Claim 4 of this invention has a cable holding part which extended the resin sheet in invention of Claim 1, and is characterized by processing the wiring cable accompanying an electrical component can do. Since the resin sheet has an adhesive layer on one side, it is easy to hold a cable such as a flat cable or a flexible cable in the cable holding portion.
[0013]
According to a fifth aspect of the present invention, in the first aspect of the present invention, the housing has an engagement slit, and the resin sheet has an engagement piece that engages with the engagement slit. It has the effect of facilitating the mounting and removal of the resin sheet.
[0014]
The invention according to claim 6 of the present invention is the invention according to claim 1, wherein the resin sheet has a thickness of 0.2 mm to 1.0 mm, and the resin sheet is made of nylon, polycarbonate, PET, PE, PP. The elastic force suitable for fixing a general-purpose electric component can be obtained.
[0015]
Hereinafter, as an example of an embodiment of the present invention, a speaker and a coin are mounted on a housing of a small electronic device main body having a high integration density of electronic components, such as a portable notebook computer that is freely carried by a user. A mounting structure for attaching two parts to the battery will be described with reference to FIGS.
[0016]
(Embodiment 1)
FIG. 1 is an assembly view of a component mounting structure according to an embodiment of the present invention, FIG. 2 is a side view of the component mounting structure, and FIG. 3 is an enlarged view of a main part of the mounting portion.
[0017]
In FIG. 1, 1 is a housing of the electronic device body, 2 is a speaker, 3 is a coin battery, and 4 is a resin sheet. Details will be described in order below.
[0018]
The housing 1 includes a speaker mounting frame 5 on which the speaker 2 is mounted, a coin battery mounting frame 6 on which the coin battery 3 is mounted, a press-fit post 7, and an engagement slit 8. The speaker 2 includes a magnet portion 9 protruding in a cylindrical shape, a cone portion 10 spreading in a cone shape, and a speaker cable 11. The coin battery 3 is a thin disk and is shorter than the speaker 2. The resin sheet 4 includes a press-fit hole that engages with the press-fit post 7, an engagement resin piece 13 that engages with the engagement slit 8, an opening 14 that avoids the magnet portion 9, and a cable holding portion 15 that holds the speaker cable 11. ing. One side of the resin sheet 4 is provided with an adhesive layer (or adhesive layer) 16 over the entire surface, and the surface of the adhesive layer is protected by protective paper (not shown).
[0019]
Next, the procedure for attaching the electrical component in the first embodiment will be described in order with reference to FIG. First, the speaker 2 and the coin battery 3 are placed in the mounting frames 5 and 6. Since the mounting frames 5 and 6 are designed to have a diameter larger than the component diameter, the mounting frames 5 and 6 can be easily mounted. The speaker cable 11 is directed in a predetermined direction by mounting the speaker 2 on the speaker mounting frame 5. The bottom of the coin battery mounting frame 6 is raised, and the surface of the coin battery 3 is designed to have a predetermined height when the coin battery 3 is mounted. That is, by placing the electrical component on the placement frames 5 and 6, the X, Y, and Z coordinates of the surface of the electrical component are determined as predetermined coordinates.
[0020]
Next, the protective sheet of the resin sheet 4 is removed, the engagement resin piece 13 is engaged with the engagement slit 8, and at the same time, the press-fitting hole 12 is engaged with the press-fitting post 7. When the resin sheet 4 is pushed in along the press-fit post 7 with the engagement slit 8 as a fulcrum, the adhesive layer 16 of the resin sheet 4 is placed on the stepped surface of the press-fit post 7, the cone portion 10 of the speaker 2, and the surface of the coin battery 3. Stops at the abutting position. A cross-sectional view at this position is shown in FIG. As shown in FIG. 2, the resin sheet 4 stops at a horizontal position substantially parallel to the surface of the housing 1. The position of the resin sheet 4 is determined by the position of the engagement resin piece 13, the position of the engagement slit 8, the periphery of the cone portion 10 of the speaker 2, the stepped surface 20 of the press-fit post 7, and the surface of the coin battery 3. (At the contact portion between the press-fit post 7 and the press-fit hole 12, the end of the resin sheet 4 is warped to prevent it from coming off.) If the speaker cable 11 is pressed against the adhesive layer 16 as shown in FIG. The speaker cable 11 is fixed to the resin sheet 4, and the cable can be attached to a predetermined location.
[0021]
FIG. 3 shows an outline of the main part of the mounting structure. 3A is an enlarged perspective view of the press-fitting support 7 and the press-fitting hole 12, FIG. 3B is a sectional view of the press-fitting portion, and FIG. 3C is an enlarged perspective view of the engagement slit and the engagement resin piece 13. FIG.
[0022]
In FIG. 3A, the press-fitting support column 7 stands on the cross-shaped pedestal 20. The hole diameter of the press-fitting hole 12 is made smaller than the diameter of the press-fitting support column 7, and a cut line 21 is provided to facilitate press-fitting. FIG. 3B shows a state where the press-fitting support 7 is engaged with the press-fitting hole 12 and the resin sheet 4 is pushed into the pedestal 20. The resin sheet 4 is fixed to the press-fit strut 7 and the pedestal 20 by the adhesive force / adhesive force of the adhesive layer 16, and is pressed against the press-fit strut 7 and the pedestal 20 by the elasticity of the warped portion 22 of the resin sheet 4. In FIG. 3C, the engagement resin piece 13 is provided at a position facing the press-fit strut 12, and the engagement resin piece 13 is inserted into the engagement slit 8, and the slit bottom surface 23 and the adhesive layer 16 are formed. It is fixed by adhesive force and has the effect of preventing it from coming off.
[0023]
Finally, the cable holding part 15 will be described. An electrical component next to the speaker 2 and the coin battery 3 is, for example, a planar input device (touch pad) 32. Flexible cables 30 and 31 connected to the main board are wired from the plane input device 32. 15a, 15b, and 15c are end portions of the resin sheet 4 and are not involved in fixing the speaker 2 and the coin battery 3. However, the flexible cables 30 and 31 are held by the adhesive on the back surface, and the cables Processing. The cable holding portions 15a and 15b guide and attach the flexible cable 30 at a right angle, and the cable holding portion 15c attaches the flexible cable 31. As shown in FIG. 1, if the flexible cable 30 is straddled on the upper surface of the corner of the resin sheet 4, the direction of the cable can be changed.
[0024]
A procedure for removing the speaker 2 and the coin battery 3 for inspection and repair will be described. When a nail is put on the back surface of the resin sheet 4 and the resin sheet is lifted along the press-fitting support column 7, the resin sheet 4 comes off with the speaker 2, the coin battery 3, and the flexible cables 30 and 31 fixed. These parts may be removed as needed for work and returned to their original state after necessary processing. The resin sheet 4 can be used a plurality of times. However, when the functions of the press-fitting hole 12, the adhesive layer 16, and the like are deteriorated, the resin sheet 4 may be replaced with a new resin sheet.
[0025]
As the material of the resin sheet, a general-purpose plastic having moderate elasticity can be used. Preferable materials are nylon, polycarbonate, PET (polyethylene terephthalate), PE (polyethylene), PP (polypropylene), and the like. A resin sheet having a thickness of 0.2 mm to 1.0 mm is suitable for mounting a general-purpose electrical component. It is not preferable that the rigidity is too strong to be bent when the press-fit post 7 is engaged or released, or the press-fit post 7 is damaged.
[0026]
The electrical components such as the speaker 2 and the coin battery 3 incorporated in the housing 1 are subjected to vibration and impact while being carried and moved. These electrical components are caused by the pressing force by the resin sheet 4 and the adhesive force by the adhesive layer 16. Since it is sandwiched between the housing 1 and the resin sheet 4, it does not move individually, and a stable mounting state can be maintained.
[0027]
In the first embodiment, the housing 1 and the resin sheet 4 are engaged by the press-fitting hole 12 / press-fit strut 7 and the engagement resin piece 13 / engagement slit 8, but the engagement resin piece / engagement slit is It is possible to use a plurality of press-fitting holes / press-fit struts without using them.
[0028]
In the first embodiment, the resin sheet 4 is attached so as to be substantially parallel to the housing 1, but can be attached as a slope / curved surface along the shape of the electrical component.
[0029]
Further, if the cable holding portion 15 is formed in an L shape, a U shape, or the like instead of the eave-like plane, the cable can be held more reliably.
[0030]
Further, if the cylindrical surface of the press-fit post is provided with unevenness for preventing it from coming off, the engagement force with the resin sheet is further increased.
[0031]
【The invention's effect】
As described above, according to the present invention, it is possible to easily and reliably attach and detach a plurality of electrical components having different heights used in electronic equipment, and to easily connect cables and the like between the boards. A component mounting structure that can be securely mounted is provided.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a component mounting structure in one embodiment of the present invention. FIG. 2 is a side view of the component mounting structure in one embodiment of the present invention. Fig. 4 is an enlarged view of the main part of the mounting structure. Fig. 4 is a side view showing an example of a conventional part mounting structure.
DESCRIPTION OF SYMBOLS 1 Housing | casing of an electronic device main body 2 Speaker 3 Coin battery 4 Resin sheet 5 Speaker mounting frame 6 Coin battery mounting frame 7 Press-in support | pillar 8 Engagement slit 11 Speaker cable 12 Press-in hole 13 Engagement resin piece 14 Opening 15a, 15b, 15c Cable holding part 16 Adhesive layer

Claims (6)

An electronic component having a housing of an electronic device having a mounting frame and a press-fit post, a resin sheet having a press-fitting hole that engages with the press-fit post and an adhesive layer on one side, and placed on the mounting frame The resin sheet is placed above the electrical component so as to face the adhesive layer, the press-fitting hole is engaged with the press-fit post, and the resin sheet is pushed down along the post to The electrical component is adhered to the electrical component, the resin sheet is pressed against the electrical component by the elastic force of the resin sheet, and the electrical component is sandwiched between the resin sheet and the mounting frame. An electric component mounting structure, wherein the component is fixed to the casing. 2. The electric component mounting structure according to claim 1, wherein the resin sheet includes openings for avoiding uneven contact between the odd-shaped electric component and the adhesive layer. 2. The electrical component mounting structure according to claim 1, wherein the height of the electrical component placed on the placement frame is adjusted to a predetermined height by the placement frame. The electric component mounting structure according to claim 1, further comprising a cable holding portion in which a resin sheet is extended. The electrical component mounting structure according to claim 1, wherein the housing includes an engagement slit, and the resin sheet includes an engagement piece that engages with the engagement slit. 2. The electrical component according to claim 1, wherein a thickness of the resin sheet is 0.2 mm to 1.0 mm, and a material of the resin sheet is selected from nylon, polycarbonate, PET, PE, and PP. Mounting structure.

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