JPH07321472A - Control box for toilet stool - Google Patents

Abstract

PURPOSE:To allow inspection or replacement of a second board while visually confirming the second board directly by arranging one or a plurality of first boards within a potting case while embedding in the potting material and fixing a second board to the potting case while exposing. CONSTITUTION:Relatively low components, e.g. a resistor 13, an IC 14 and a chip element 15, are mounted along with a switch 25 on a second board 12 arranged on the surface side of a potting case 21. They are fixed to a boss part 26 projecting from the bottom face 22. The second board 12 is not subjected to potting. Relatively high components, e.g. a heat sink 16, a capacitor 17 and a relay 18, are mounted on a first board 11 arranged on the rear side of the bottom face 22. It is subjected to potting with a patting material 20. This structure allows inspection or replacement of the second board 12 while visually confirming the second board directly.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a control box for controlling various devices mounted on a toilet bowl.

In recent years, various devices such as a cleaning device and a deodorizing device have been incorporated in a toilet bowl, and a control box has been attached to the toilet bowl to control these various devices. This control box needs to be installed in a limited space of the toilet bowl, and the installation space is limited, so that the control box cannot be upsized, and there is a problem that the control function is naturally limited.

In order to solve such problems and provide a control box having a large-capacity control function and capable of being installed in a compact size, it is necessary to provide a fair control box.
In the gazette, there are two control function parts of the control box.
It has been proposed to dispose them on one or more substrates, stack the substrates at appropriate intervals, and bury them in a case body with a resin material interposed therebetween.

In such a toilet control box, since the boards are stacked and embedded in the case body, the total area of the boards housed in the case body is the total area of the boards, and a large number of control function parts are mounted on the board. It can be placed on top, and the control function of the control box as a whole can be made to have a large capacity, and moreover, substrates can be stacked to form a compact volume.
Also, the potting protects the substrate from water.

The toilet box control box of JP-B-6-13841 will be described with reference to FIGS. A two-stage first substrate 11 and second substrate 1 in which various control function parts are arranged in a potting case 10 made of synthetic resin.
2 are provided.

On the lower second substrate 12, a resistor 13 and an IC1
4, small and relatively small control electric parts such as the chip element 15 are mounted. On the first substrate 11 on the upper side, relatively tall electric components such as a relay 18, a heat sink 16 and a capacitor 17 are mounted.

The second substrate 12 is fixedly integrated through the connecting rods 19 and 19 at appropriate intervals on the lower surface side of the first substrate 11 and mounted in the potting case 10. Then, a potting material such as urethane resin is poured into the potting case 10, and the second substrate 12 and the first substrate 11 are embedded in the potting material 20.

[0008]

The conventional toilet control box described above has the following problems.

Since both the first substrate 11 and the second substrate 12 are arranged and potted on the same side of the case 10, the amount of potting material is large.

Neither board can be replaced and repaired.

[0011]

A control box for toilet bowl according to claim 1 is a control box for controlling various devices mounted on the toilet bowl, and various control function parts of the control box are two or more. In the toilet control box arranged on the substrate, one or a plurality of first substrates among the substrates are arranged in a potting case and are embedded by a potting material. The remaining second substrate is attached to the potting case in an exposed state.

According to a second aspect of the present invention, in the first aspect of the present invention, the parts on the first board are high voltage parts and the parts on the second board are low voltage parts. It is characterized by.

A toilet control box according to a third aspect of the present invention is the toilet control box according to the first aspect, wherein the first substrate is disposed on one side and the second substrate is disposed on the other side of the bottom surface of the potting case. It is characterized by being present.

According to a fourth aspect of the present invention, in the toilet control box according to the third aspect, the first substrate and the second substrate are connected by a lead wire, and a notch provided in a side portion of the potting case. The lead wire is drawn through the concave portion.

The control box for toilet bowl according to claim 5 is a control box for controlling various devices mounted on the toilet bowl, and various control function parts of the control box are arranged on two substrates. In the toilet control box in which the substrate is placed in the potting case and embedded by potting material, one substrate is placed on one side of the bottom surface of the potting case and the remaining one is placed on the other side. It is characterized in that a substrate is arranged.

[0016]

In the toilet control box according to claims 1 to 4, since only the first substrate is potted and the second substrate is not potted, the second substrate can be directly visually inspected or the second substrate can be inspected. The board can be replaced.

Further, since the second substrate is not potted, the amount of potting material used can be reduced accordingly.

In this case, as in claim 2, by potting only the first substrate on which a high voltage (for example, commercial 100V) component requiring high water resistance is mounted, a low voltage (not so strict water resistance) is required. It is preferable to mount the component (for example, 5V) on the second substrate.

When the first substrate is placed on one side of the bottom surface of the potting case for potting and the second substrate is placed on the other side as in claim 3, the second substrate is placed. By arranging the board so that it faces upward, the switch provided on the second board can be easily operated. On the contrary, when the toilet control box is installed so that the second substrate faces downward, it is difficult for water to splash on the second substrate.

In the toilet control box according to the fourth aspect, the lead wires for connecting the substrates are prevented from protruding to the side of the potting case, and the installation space for the toilet control box can be reduced.

In the toilet control box of the fifth aspect, only the substrate can be potted, and the components on the substrate can be potted so that only the base end portion facing the substrate is embedded in the potting material. By potting in this way, the amount of potting material used is reduced.

[0022]

Embodiments will be described below with reference to the drawings. FIG. 1 is a vertical cross-sectional view of a toilet control box according to an embodiment of the present invention.

In this embodiment, the potting case 21 is used.
Includes a bottom surface 22, a side wall portion 23 that is erected from the peripheral edge of the bottom surface 22 to one side, and a side wall portion 24 that is erected to the other side. In the present embodiment, this controller is installed so that the side wall portion 23 faces upward.

The second substrate 12 is arranged on the upper surface side of the potting case 21. On the second substrate 12, components having a relatively low height such as a resistor 13, an IC 14 and a chip element 15 are mounted, and a switch 25 is mounted. The second substrate 12 is attached to a boss portion 26 protruding from the bottom surface 22. As shown, this second substrate 12 is not potted.

The first substrate 11 is arranged below the bottom surface 22, and on the first substrate 11, components having a relatively large height such as a heat dissipation plate 16, a capacitor 17 and a relay 18 are mounted. The first substrate 11 is a potting material 20.
Have been potted in.

In the toilet control box constructed as described above, only the first substrate 11 is potted, the second substrate 12 is not potted, and the second substrate 12 is not potted.
It is possible to directly visually inspect the board 12 and to replace the second board.

Further, the second substrate 12 is not potted, and as is clear from the comparison with the conventional example of FIG. 7,
The potting material 20 can be used in a very small amount.

In this embodiment, all the components arranged on the second substrate 12 are operated at a low voltage such as 5V, and even if the second substrate 12 is exposed to water, it is immediately short-circuited. Never.

In this embodiment, since the switch 25 is arranged on the upper surface side, for example, when this controller is installed so as to face the back side of the upper surface of the toilet seat box, the opening provided on the upper surface of the toilet seat box. It is possible to directly operate the switch 25 via the.

In the present embodiment, the components mounted on the first substrate 11 are for 100V, and the first substrate 11 on which these components are mounted is potted. It is possible to reliably prevent the occurrence of a short circuit due to the contact.

The controller shown in FIG. 1 is installed so that the second substrate 12 is on the upper side. However, in the present invention, as shown in FIG. 2, the first substrate 11 is on the upper side. You may install a controller in. In this case, the switch may be provided separately from the controller.
Although not shown, the switch 25 may be installed on the first substrate 11 so that only the upper end of the switch projects to the upper surface of the potting material 20.

The configuration of FIG. 2 is the same as that of FIG. 1 except that the structure is turned upside down and the switch 25 is omitted. The same parts are designated by the same reference numerals and their description is omitted.

FIG. 3 is a sectional view of a controller according to another embodiment of the present invention. In the potting case 27 used in this controller, the side wall 28 is provided upright only from the entire peripheral edge of the bottom surface 29 to the upper side, and the side wall 28 is also provided.
A bracket 28 is erected further upward from the upper end of the.

The first substrate 11 is installed in the potting case 27 and embedded with the potting material 20. The second substrate 12 is attached to the bracket 28a. The components mounted on the first substrate 11 and the second substrate 12 are the same as those in the embodiment shown in FIG.

Also in the controller shown in FIG. 3, the second substrate 12 can be inspected and replaced, and the potting material 20 is used in a small amount. Further, since the 100V wiring is potted, the short circuit of the 100V wiring is surely prevented.

FIG. 4 is a perspective view of a controller according to still another embodiment of the present invention. The potting case 30 used in the present embodiment has a bottom surface 31 at a middle portion in the thickness direction, and side walls 32 and 33 are provided upright in the vertical direction from the entire peripheral edge of the bottom surface 31. The second substrate 34 is disposed above the bottom surface 31, and the first substrate is disposed below the bottom surface 31.
Substrate (not shown) is arranged.

Only the first substrate is embedded with the potting material. Components operating at 5V are mounted on the second substrate 34, and components for 100V are mounted on the first substrate.

The second substrate 34 and the first substrate are connected by a lead wire 35. Potting case 30
On the side surface of the concave portion 3 for allowing the lead wire 35 to pass therethrough.
6 is provided.

Also in this embodiment, the same operational effects as the embodiment of FIG. 1 are obtained. Further, in the present embodiment, since the lead wire 35 is drawn into the recess 36, the lead wire 35 does not stick out to the side of the potting case 30, and this controller is compact in a device such as a toilet seat box. There is an effect that can be stored in.

FIG. 5 is a sectional view showing another embodiment of the invention of claim 5. The controller of this embodiment is the same as the controller of FIG. 1 except that the second substrate 12 is also embedded with the potting material 20. The rest of the configuration is the same as that of the embodiment of FIG.

Even in this embodiment, the amount of potting material 20 used is smaller than that in the conventional example shown in FIG. That is, the seventh
In the conventional example shown in the figure, the potting material for filling the second substrate 12 is filled so as to bury all the components on the second substrate 12 and further reach the upper surface of the first substrate. ing. On the other hand, in the controller shown in FIG. 5, the potting material filling the second substrate 12 is filled to the upper surface of the second substrate 12 so as to be applied very thinly, and the amount of the potting material used is small.

The above embodiments are all examples of the present invention, and the present invention can use a potting case having a shape other than that shown in the drawings. Further, in the present invention, various components other than the above can be mounted on the substrate. Further, in the present invention, it is obvious that a plurality of switches may be provided on the substrate.

[0043]

In the controller according to the first to fourth aspects of the present invention, the second substrate can be directly visually inspected and the second substrate can be replaced. Therefore, the inspection and repair of the board can be performed extremely easily and quickly. Further, since the amount of potting material used is small, it is possible to reduce the manufacturing cost and the manufacturing time.

In the controller according to the second aspect of the present invention, the short circuit of the circuit board on which the components operated at a high voltage are mounted can be prevented.

In the controller of the third aspect, the controller can be installed so that the switch provided on the substrate can be operated very easily. In addition, this controller can be installed so that water is unlikely to splash on the second substrate.

In the controller of the fourth aspect, since the lead wire connecting the substrates to each other is drawn through the recess, the controller is reduced in bulk, and the controller can be compactly installed in equipment such as a toilet seat box. It is possible to install.

In the controller of the fifth aspect, the amount of potting material used is reduced.

[0048]

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a controller according to an embodiment.

FIG. 2 is a cross-sectional view of the controller according to the embodiment.

FIG. 3 is a cross-sectional view of a controller according to another embodiment.

FIG. 4 is a perspective view of a controller according to yet another embodiment.

FIG. 5 is a sectional view of a controller according to an embodiment of the invention of claim 5;

FIG. 6 is an exploded perspective view of a conventional controller.

FIG. 7 is a sectional view of a conventional controller.

[Explanation of symbols]

 10, 21, 27, 30 Potting Case 11 First Substrate 12, 34 Second Substrate 13 Resistor 17 Capacitor 18 Relay 20 Potting Material

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tetsuo Makino 2-1-1 Asahi-cho, Kariya-shi, Aichi Aisin Seiki Co., Ltd. (72) Mitsuhiro Ohara 2-1-1 Asahi-cho, Kariya-shi, Aichi Aisin Seiki Incorporated (72) Inventor Masatoshi Kuno 2-1, Asahi-cho, Kariya city, Aichi Prefecture Aisin Seiki Co., Ltd.

Claims (5)

[Claims] 1. A control box for controlling various devices mounted on a toilet bowl, wherein various control function parts of the control box are provided on two or more substrates. One or a plurality of the first substrates among the substrates are arranged in a potting case and embedded by a potting material, and the remaining second substrates of the substrates are exposed in an exposed state. Control box for toilet bowl, which is attached to a potting case. 2. The toilet control box according to claim 1, wherein the components on the first substrate are components for high voltage, and the components on the second substrate are components for low voltage. . 3. The first substrate according to claim 1, wherein the first substrate is arranged on one side of the bottom surface of the potting case.
A control box for toilet, wherein a second substrate is arranged on the other side. 4. The third substrate according to claim 3, wherein the first substrate and the second substrate are connected by a lead wire, and the lead wire is provided in a notched concave portion provided on a side edge portion of the potting case. Control box for toilet bowl, which is characterized by being pulled through. 5. A control box for controlling various devices mounted on a toilet bowl, wherein various control function parts of the control box are arranged on two boards.
In a toilet control box in which both substrates are placed in a potting case and embedded by potting material, one substrate is placed on one side of the bottom surface of the potting case and the remaining one is placed on the other side. The control box for the toilet, which is characterized in that the board of FIG.