JP3717744B2 - Signal line seal structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a signal line sealing structure in an electric device such as a rice cooker.
[0002]
[Prior art]
In electrical equipment such as rice cookers, through holes are provided in the partition between the parts that need to avoid the intrusion of water (waterproof parts), such as the storage part of the control board and display board, and the parts that do not need it, When the signal line is wired through the insertion hole, sealing means for preventing water from entering around the insertion hole is applied. There are various types of signal lines such as a single line and a flat cable. In any case, as a simple seal structure, a structure in which a panel having a double-sided adhesive tape attached around the insertion hole is employed. According to this structure, the periphery of the insertion hole and the surface of the signal line on the panel side are sealed with the double-sided adhesive tape.
[0003]
Further, in order to seal the surface to which the double-sided adhesive tape is not bonded, that is, the lower surface of the signal line, a seal recess having a length extending on both sides of the signal line is provided in the partition wall, and the seal recess is synthesized. A structure is adopted in which a rubber is filled and a pressing rib that fits within the range of the sealing recess is provided on the lower surface of the panel, and a signal line wired on the synthetic rubber is pressed and sealed by the pressing rib.
[0004]
[Problems to be solved by the invention]
As the above-mentioned synthetic rubber, silicone sealant is usually used, but it takes about 24 hours for the synthetic rubber filled in the seal recess to be cured at the time of manufacture of the product. There is no inconvenience. Further, since it is sticky until it is cured, there is a risk of sticking to parts other than the necessary part when filling the seal recess, which often impedes work.
[0005]
Therefore, the present invention is to solve such problems, and to provide a signal line seal structure that can perform the following work without taking time after filling, and also prevents stickiness. And
[0006]
[Means for Solving the Problems]
In order to solve the above problems, the present invention provides a signal line in contact with the wall surface of the container, and a panel having a double-sided adhesive sheet attached to the wall surface to thereby bond the panel side surface of the signal line. Sealed with the double-sided adhesive tape, and provided with a seal recess having a length extending on both sides of the signal line on the wall surface, and the seal recess is filled with synthetic rubber, and the seal recess is formed on the lower surface of the panel. A signal line seal in which a pressing rib that fits within the range is provided, the signal line wired on the synthetic rubber is pressed by the pressing rib, and the wall surface of the signal line is sealed at the pressing portion. In the structure, an uncured synthetic rubber is used as the synthetic rubber.
[0007]
By the pressing of the pressing rib, the signal line is bent under a concentrated load through the double-sided adhesive tape, and the uncured synthetic rubber is plastically deformed according to the deformation to perform sealing.
[0008]
In addition, a signal line insertion hole is provided in the wall surface of the vessel body, and the double-sided adhesive tape and the opposite side of the signal line wired between the insertion hole and the waterproof portion along the wall surface are provided. It is possible to adopt a configuration in which the surface is sealed with the uncured synthetic rubber.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the accompanying drawings. The embodiment shown in FIGS. 1 to 4 relates to a seal structure in a lid of a rice cooker. In the illustrated rice cooker, a lid set 2 is attached to a jar main body 1 by a hinge 3 (see FIG. 2) so that the lid set 2 can be opened and closed, and a liquid crystal attachment portion 5 having a shallow recess is provided on a lid plate 4 of the lid set 2. The liquid crystal attachment portion 5 is a waterproof portion.
[0010]
As shown in FIGS. 2 and 3, a panel receiving portion 6 is provided around the liquid crystal attachment portion 5, and a liquid crystal display set 7 is attached to the liquid crystal attachment portion 5. The panel receiving portion 6 is provided with slit-like insertion holes 8 and several positioning recesses 9.
[0011]
A flat cable 11 as a signal line is connected to the liquid crystal display set 7, the flat cable 11 is drawn into the lid set 2 through the insertion hole 8, and is further controlled in the jar body 1 through a path not shown. Connected to the device. Also, a seal recess 12 having a width larger than the width of the flat cable 11 and extending over both sides is provided on the surface of the panel receiving portion 6 between the insertion hole 8 and the liquid crystal mounting portion 5. The seal recess 12 is filled with uncured synthetic rubber 13 (see FIG. 4).
[0012]
A panel 14 covering the liquid crystal mounting portion 5 is fitted to the panel receiving portion 6. A portion of the panel 14 corresponding to the liquid crystal display set 7 is formed transparent. In addition, a positioning projection 15 that fits into the positioning recess 9 is provided on the back surface, and a pressing rib 16 that faces the seal recess 12 and fits within the range is provided. Further, a double-sided adhesive tape 17 is bonded to the back surface of the panel 14 in a range surrounding the liquid crystal display set 7. The portion of the positioning protrusion 15 is removed, but the portion of the pressing rib 16 is covered with the double-sided adhesive tape 17.
[0013]
When the panel 14 to which the double-sided adhesive tape 17 has been bonded in advance as described above is stacked on the panel receiving portion 6, the positioning projection 15 is fitted into the positioning recess 9 to position the panel 14, and the panel receiving portion 6 is Glued to. Further, the flat cable 11 is bonded to the upper surface thereof as shown in FIG. 4, and at the same time, the pressing rib 16 presses the range exceeding the entire width of the flat cable 11.
[0014]
FIG. 4B shows a wiring state of the flat cable 11 in the insertion hole 8 and the seal recess 12. In this figure, a hatched portion A is a portion bonded and sealed with a double-sided adhesive tape 17, and a non-hatched portion B is a portion on the lower surface of the flat cable 11, and a portion to which the double-sided adhesive tape 17 is not bonded, and thus a seal. In this portion B, the flat cable 11 is pressed against the inside of the uncured synthetic rubber 13 by the presser rib 16, and the flat cable 11 is bent and sealed under concentrated load.
[0015]
As the uncured synthetic rubber 13, an uncured silicone rubber or the like having no elasticity and having a property of being exclusively plastically deformed is used. The flat cable is deformed plastically by being intensively pressed by the pressing rib 16. 11 is sealed on the lower surface.
[0016]
Although the case where the flat cable 11 is used as the signal line has been described above, the same applies to the case of a single line or other signal lines. Further, the present invention is not limited to the seal around the insertion hole 8 but can be applied when sealing with a double-sided adhesive tape when signal lines are wired between panels overlaid on the wall surface.
[0017]
【The invention's effect】
As described above, the present invention seals one side of a signal line by adhering a panel having a double-sided adhesive tape to a signal line wired along a wall surface and a portion on both sides of the signal line. The uncured synthetic rubber is used as the synthetic rubber in the signal line seal structure in which the side is wired on the recess filled with the synthetic rubber and sealed by the pressing rib provided on the back surface of the panel. By doing so, it is possible to move to the next step without waiting for the time for the curing reaction in the production process. In addition, since it is not sticky, there is an advantage that it is easy to handle.
[Brief description of the drawings]
FIG. 1 is a perspective view of an embodiment. FIG. 2 is a partially enlarged sectional view of the same. FIG. 3 is a partially exploded perspective view of the same. FIG. 4A is a partially enlarged sectional view of the same. Part plan [Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Jar body 2 Cover set 3 Hinge 4 Cover plate 5 Liquid crystal attachment part 6 Panel receiving part 7 Liquid crystal display set 8 Insertion hole 9 Positioning recessed part 11 Flat cable 12 Sealing recessed part 13 Uncured synthetic rubber 14 Panel 15 Positioning protrusion 16 Holding rib 17 Double-sided adhesive tape

Claims (2)

The signal line is wired in contact with the wall surface of the container, and the panel side of the signal line is sealed with the double-sided adhesive tape by adhering a panel having a double-sided adhesive sheet on the wall surface, and the signal is connected to the wall surface. A seal recess having a length extending on both sides of the wire is provided, and the seal recess is filled with a synthetic rubber, and a pressing rib that fits within the range of the seal recess is provided on the lower surface of the panel. In the signal line seal structure in which the signal line wired above is pressed by the pressing rib and the wall surface of the signal line is sealed at the pressed portion, uncured synthetic rubber is used as the synthetic rubber. A signal line seal structure characterized by being used. A signal line insertion hole is provided in the wall surface of the vessel body, and the signal line wired between the insertion hole and the waterproof portion along the wall surface is connected to the double-sided adhesive tape and the opposite surface. 2. The signal line sealing structure according to claim 1, wherein sealing with the uncured synthetic rubber is performed.

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