JPH053389A - Structure of the potting case - Google Patents

Abstract

(57) [Summary] [Purpose] The potting agent can be evenly potted throughout the potting case. You can also reinforce the potting case. [Configuration] A potting case 4 in which a printed board 2 on which an electronic component 1 is mounted is inserted and potted with a potting agent 3. From both sides of the lower surface portion 5 of the potting case 4, mounting pieces 6 and 7 which are parallel to each other and incline with respect to the potting case 4 are provided in a protruding manner. A rib 8 is provided on the lower surface 5 of the potting case 4 so as to project therefrom. The lower end surface of the rib 8 is located at the same level as or below the lower end of the one mounting piece 6 projecting from one end of the potting case 4 so as to incline obliquely outward and downward.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a potting case which is inclined when it is attached.

[0002]

2. Description of the Related Art Conventionally, a lot of electronic equipment has been recently incorporated into appliances for water supply in a house such as a toilet seat for warm water washing and a wash basin. By the way, the installation environment of the water supply equipment in this house is such that the environment of use of water and ammonia gas is very severe. Therefore, in order to improve the life and reliability of electronic equipment, the printed board on which electronic components are mounted has been inserted into a potting case, and potting agent has been potted inside the potting case. Was attached to. In this case, when mounting, the mounting pieces are provided at both ends of the lower surface of the potting case, and the mounting pieces are brought into contact with the portion to be mounted of the equipment for water supply and attached with screws or the like.

[0003]

However, due to the design or structural restrictions of the water supply equipment, the mounting pieces are provided at both ends of the potting case so as to incline with respect to the lower surface of the potting case. If it was not installed, it could not be installed. In this case, one of the mounting pieces that are parallel to each other needs to be provided so as to project from one end of the potting case so as to incline obliquely outward and downward. By the way, when the potting case having such a structure is placed on the work table as it is and potting is performed, the tip of one of the mounting pieces comes into contact with the work table and the potting case tilts as a whole. When the potting agent is injected into the case, the potting agent does not flow evenly in the entire potting case, and when trying to flow the potting agent into the entire case, it is necessary to increase the amount of the potting agent. Therefore, it is possible to place the potting case on the work table via a jig for keeping the potting case horizontal when injecting the potting agent, but this requires a separate jig and There is a problem that mounting is troublesome and workability is poor.

The present invention has been made in view of the above-mentioned problems of the prior art, and its object is to make the mounting piece incline obliquely downward and outward from one end of the lower surface of the potting case. It is an object of the present invention to provide a potting case structure capable of uniformly potting the potting agent throughout the potting case and reinforcing the potting case.

[0005]

The structure of the potting case of the present invention is the potting case 4 in which the printed board 2 on which the electronic component 1 is mounted is inserted and potted by the potting agent 3.
From the both sides of the lower surface portion 5 of each of the mounting pieces 6 and 7, which are parallel to each other and incline with respect to the potting case 4, are projected.
A rib 8 is projectingly provided on the lower surface portion 5 of the potting case 4, and one of the mounting pieces 6 is provided so that the lower end surface of the rib 8 is projected obliquely outward and downward from one end of the potting case 4. It is characterized in that it is located at the same level as or lower than the lower end of the above. By adopting such a configuration, the problems of the conventional example described above are solved and the object of the present invention is achieved. Is.

[0006]

In this case, mounting pieces 6 and 7 which are parallel to each other and incline with respect to the potting case 4 project from both sides of the lower surface 5 of the potting case 4, and ribs 8 project from the lower surface of the potting case 4. There is equipment 9
When attaching to the potting case 4, the attaching pieces 6 and 7 inclined with respect to the potting case 4 are attached to the attached portion 1 of the equipment 9.
It is attached to 0 by means of the screw 11, but in this case, when the attachment piece 6 is attached to the vertical attached portion 10, the potting case 4 is attached to the equipment 9 at an inclination. As described above, in order to mount the potting case 4 on the equipment 9 in a tilted manner, the potting case 4 is mounted on both sides of the lower surface portion 5 of the potting case 4 in parallel to each other as described above. Even though the pieces 6 and 7 are projected, a rib 8 is projected on the lower surface portion 5 of the potting case 4, and the lower end surface of the rib 8 is slanted outward and downward from one end of the potting case 4. When the potting case 4 is placed on the workbench, it is affected by the mounting piece 6 by locating it at the same level as or below the lower end of the one mounting piece 6 projecting so as to incline toward Without the ribs 8, the potting case 4 can be leveled, and the potting agent 3 can be evenly potted in the entire potting case 4. Those that became. The rib 8 also serves as a reinforcement for the potting case 4.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the embodiments shown in the accompanying drawings. The potting case 4 has a bank portion 12 projecting from the entire outer periphery of the lower surface portion 5. Further, mounting pieces 6 and 7 which are parallel to each other and incline with respect to the potting case 4 are provided so as to project from both sides of the lower surface portion 5 of the potting case 4. Here, the one mounting piece 6 is provided so as to project from one end of the potting case 4 so as to incline obliquely outward and downward. Lower part 5 of potting case 4
Further, ribs 8 are provided to project from the ribs. The ribs 8 are long so as to extend over both ends of the lower surface portion 5 of the potting case 4, and are provided in a plurality of rows. The lower end surface of the rib 8 is located at the same level as or below the lower end of the one mounting piece 6 projecting from one end of the potting case 4 so as to incline obliquely outward and downward. The lower surface of the rib 8 is parallel to the lower surface portion 5 of the potting case 4.

The printed board 2 on which the key tops 13 and other electronic components 1 are mounted is inserted into the potting case 4 as described above, and potted with the potting agent 3. Here, in order to pot the potting agent 3 in the potting case 4, the potting agent 3 is placed on the workbench 14 and potted. In this case, as shown in FIG.
The potting case 4 is made horizontal by the ribs 8 without being affected by the mounting piece 6 when hitting. Therefore, if the potting agent 3 is potted in the potting case 4 thus horizontally mounted, the potting agent 4 can be evenly potted in its entirety.

The potting case 4 in which the printed board 2 is inserted and potted with the potting agent 3 as described above is attached to the equipment 9. here,
The portion of the equipment 9 in which the potting case 4 is arranged has a curved surface (for example, a curved surface having a radius of 1000 mm) as shown in FIG. 1 due to design and structural restrictions. When the main body of the equipment 9 is molded with synthetic resin, the direction of the die cutting is the direction of the arrow in FIG. 1, so that the attached portion 10 is a vertical boss.
When the printed board 2 is inserted and the potting case 4 potted with the potting agent 3 is attached, the attaching pieces 6 and 7 inclined with respect to the potting case 4 are applied to the attached portion 10 of the equipment 9 and screwed. It is attached by 11. When the attachment piece 6 is attached to the vertical attachment portion 10 in this manner, the potting case 4 is attached to the equipment 9 while being inclined.

By the way, there is an important relationship between the head top size of the key top 13 and the operability of the switch, but the rib 8 also serves to prevent the warping of the potting case 4, and the head top of the key top 13 is also held. The dimensions do not change due to the warping of the potting case 4.

[0011]

As described above, according to the present invention, mounting pieces, which are parallel to each other and incline with respect to the potting case, project from both sides of the bottom surface of the potting case, and ribs are provided on the bottom surface of the potting case. And the lower end surface of this rib is located at the same level as or lower than the lower end of the one mounting piece projecting so as to incline obliquely outward and downward from one end of the potting case. Therefore, in the case where the mounting piece projects from one end of the lower surface of the potting case so as to incline obliquely outward and downward, the potting agent can be evenly poted throughout the potting case, and the potting case can be reinforced. There is an advantage that you can also.

[Brief description of drawings]

FIG. 1 is a sectional view showing a mounting state of a potting case of the present invention.

FIG. 2 is a plan view of the above.

FIG. 3 is a sectional view showing a state in which the potting case is filled with a potting agent.

[Explanation of symbols]

 1 Electronic Component 2 Printed Board 3 Potting Agent 4 Potting Case 5 Lower Surface 6 Mounting Piece 7 Mounting Piece 8 Rib

Claims (1)

Claim: What is claimed is: 1. A potting case in which a printed board on which electronic components are mounted is inserted and potted with a potting agent, wherein both sides of a bottom surface of the potting case are inclined with respect to the potting case. One of the above-mentioned one in which a parallel mounting piece is projected, a rib is projected on the lower surface of the potting case, and the lower end surface of this rib is projected from one end of the potting case so as to incline obliquely outward and downward. The structure of the potting case, characterized in that it is located at the same level as or below the lower end of the attachment piece of.