KR101391285B1 - Cast-in-place type electronic control case - Google Patents

Abstract

The present invention relates to a cast-in-place type electronic control case capable of receiving a plurality of control PCBs. The cast-in-place type electronic case according to the present invention includes a control box having an open upper surface, and a receiving space enlarged toward an upper portion from a lower portion to receive a plurality of PCB receiving spaces; a control cover coupled with the control box; and a cover coupling unit having an open central portion and integrally formed with an upper end of the control box to provide a coupling space of the control cover. The control box includes a first PCB mounting unit for supporting and fixing a first PCB protruding upward from a bottom surface and provided therein; a second PCB mounting unit for supporting and fixing a second PCB protruding upward from a bottom surface of the enlarged receiving space of the control box, positioned above the first PCB mounting unit, and provided therein; and a third PCB mounting unit recessed downward along an edge of the open central portion of the cover coupling unit, positioned above the second PCB mounting unit, and providing a mounting space of a third PCB. As described above, according to the present invention, since a plurality of control PCBs can be received in one cast-in-place type electronic control case, electronic controls having various functions can be easily configured.

Description

[0001] Cast-in-place type electronic control case [0002]

The present invention relates to a buried electronic control case.

Recently, due to the development of technology and the increase of income level, many electronic controllers that perform various functions have been installed on the walls of new buildings, machinery facilities of various facilities, electronic equipment and measuring facilities, It is installed in a form buried in consideration of utilization and aesthetics.

On the other hand, in general, the electronic controller is a power supply device (SMPS) and various parts such as a relay, a capacitor, a resistor, a diode, a transistor or an FET (field effect transistor) And a printed circuit board (PCB) (hereinafter referred to as " PCB ").

That is, an electronic controller is provided with respective PCs for each function such as a communication PC for performing a communication function, an interface PC for interface connection, a control PC for performing functions such as output control, and a display PC for a screen display Respectively.

Meanwhile, as described above, the electronic controller having each of the PCs is housed in the case and buried in the wall. In Korea, the permissible dimensions of the case that can be buried are classified into 1, 2, and 3 according to the number of accommodated in the PC have.

In the case of three of the largest dimensions, the size is 145 mm (width) × 102 mm (length), which is very narrow. Except for the case thickness and the thread portion, the maximum acceptable size is 126 mm ).

However, in order to perform various functions, the control PCB required by the electronic controller is increased. In the case where the size of the case is limited by the above-mentioned regulations, the buried electronic control case has a problem of insufficient space for accommodating the PCB I have.

It is an object of the present invention to provide a flush-mounted electronic control case capable of accommodating a plurality of control PCBs.

The present invention provides a control box having an upper surface opened and an accommodation space expanded from the lower portion toward an upper portion to provide a plurality of PCB accommodating spaces, a control cover engaged with the control box and a central portion thereof, And a cover fixing part integrally formed on an upper end of the control cover to provide a locking space for the control cover. The control box includes a first PCB seating part protruding upward from the bottom surface to support and fix the first PCB cover accommodated therein, A second PCB seating part protruding upward from a bottom surface of the extended accommodation space of the control box and positioned above the first PCB seating part and supporting and fixing a second PCB accommodated therein, Is formed to be depressed downward along the edge of the opened central portion of the cover fastening portion, Positioned on, the is characterized in that the third PCB mounting part includes providing a seating space of the third PCB.

The first PCB seating part protrudes upward from both left and right sides of the bottom surface of the control box and the second PCB seating part protrudes upward from both sides of the bottom of the extended receiving space of the control box do.

A first fixing hole is formed in the first PCB seating portion to fix the first PCB using a fastening member and a second fixing hole is formed in the second PCB seating portion to fix the second PCB using a fastening member And a second fixing hole is formed.

And the third PCB seating part is provided with a plurality of support protrusions formed upwardly to support the seated third PCB at a predetermined height.

According to the present invention, a plurality of seat portions are formed in the space inside the flush-type electronic control case of the specified standard.

In addition, the plurality of seat portions are not interfered with each other when mounting the PCB at different heights, so that a large number of control PCBs can be easily accommodated.

Therefore, according to the present invention, it is possible to accommodate a large number of control PCs with one buried electronic control case, and thus an electronic controller having various functions can be easily configured.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view showing the appearance of an electronic controller employing a buried type electronic control case according to the present invention; FIG.
FIG. 2 is an exploded perspective view showing the internal structure of FIG. 1; FIG.
3 is a view showing an embodiment of a control box which is a main component of a buried type electronic control case according to the present invention.
4 is a sectional view taken along the line B-B 'in Fig. 3;
FIG. 5 is a view showing the first PCB seating portion in the control box of FIG. 4. FIG.
6 is a view showing a state in which the first PCB is seated in the control box of FIG.
FIG. 7 illustrates a second PCB seating portion in the control box of FIG. 4. FIG.
8 is a view showing a state in which the second PCB is seated in the control box of FIG. 4. FIG.
9 is a view showing a state where the third PCB is seated in the control box of FIG.
FIG. 10 is a view showing a state where the first to third PCBs are seated in the control box of FIG. 4; FIG.

Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. It is to be understood, however, that the spirit of the invention is not limited to the embodiments shown and that those skilled in the art, upon reading and understanding the spirit of the invention, may easily suggest other embodiments within the scope of the same concept.

FIG. 1 is a view showing an appearance of an electronic controller employing an embodiment of a buried type electronic control case according to the present invention. FIG. 2 is an exploded perspective view showing the internal structure of FIG.

Referring to these drawings, the buried type electronic control case according to the present invention includes a control box 100 having one side opened and containing a plurality of control PCBs for constituting an electronic controller, And a control cover 800 for shielding an opened side of the cover 800.

The control box 100 is formed in a substantially T-shaped shape when viewed from the side, and is open on the upper side. A plurality of seating portions are formed in the inner accommodation space so that a large number of PCBs can be seated.

The display panel 700 of the electronic controller is mounted on a center portion of the control cover 800, which is formed to have a size corresponding to the opened upper side of the control box 100, .

For this purpose, the display panel 700 and the control cover 800 may further include fastening protrusions and fastening grooves, respectively. The fastening protrusions are fastened to the control box 100 through the fastening grooves. The description will be made in detail below with reference to the accompanying drawings.

2, the first to third PCB ratios are accommodated between the control box 100 and the control cover 800. In the control box 100, As shown in Fig.

That is, the first PCB 10 accommodated in the lowermost part of the control box 100 is an interface PCB for inputting / outputting a control signal, and the shape of the board corresponds to the bottom of the control box 100 .

The second PCB 20 and the third PCB 30 are sequentially seated and fixed to the upper side of the first PCB 10. The second PCB 20 is connected to the first PCB 10, .

In detail, in the present embodiment, the second PCB 20 is a main PCB for generating and processing a control signal, and the size of the board is larger than the first PCB 10. In addition, the second PCB 20 can be extended to the seating portion by providing a seating portion extended outwardly from a portion where the first PCB 10 is accommodated in the interior space of the control box 100.

The size of the third PCB 30 is larger than the size of the second PCB 20, and the size of the third PCB 30 Is formed so as to extend further outward than the seat portion on which the second PCB 20 is seated.

The third PCB 30 is further provided with a module mounting portion 32 for mounting an LCD module 40 for a control status in a central portion of the third PCB 30. The LCD module 40 includes a third PCB 30 and is accommodated in the control box 100.

Although not shown, a variable number indicator (FND) module may be installed in the module mounting portion 32, if necessary, without mounting the LCD module 40. [

FIG. 3 is a view showing an embodiment of a control box which is a main part of a buried type electronic control case according to the present invention, and FIG. 4 is a sectional view taken along line B-B 'of FIG.

Referring to these drawings, the control box 100 includes a PCB accommodating portion 200 that is provided on the wall surface and is not exposed to the outside while providing the accommodating space of the first to third PCBs, And a cover fastening part 300 extending outward along the edge from the upper side and exposed to the outside at the time of embedding.

In other words, the cover coupling part 300 is buried in the wall surface to be buried to maintain the same horizontal line as the wall surface and is exposed to the outside, and a plurality of coupling holes are provided to form a plurality of coupling projections Is fitted into the coupling hole.

The cover fixing part 300 may further include a panel fixing part 320 for fixing the display panel 700 described above.

The panel fixing portion 320 may be formed to have a shape corresponding to that of the fastening protrusion formed on the display panel 700 and a recess formed in the fastening protrusion. And a fixing hook 322 fixed to the projection.

Meanwhile, the PCB receiving part 200 is formed so that the first, second, and third PCB seats can be seated sequentially.

The PCB accommodating portion 200 is formed in a shape such that the accommodation space expands from the lower portion to the upper portion and is protruded upward from the bottom surface to support and fix the first PCB 10, (See Fig. 5).

5 is a view showing the first PCB seating portion in the control box of FIG. 4, and FIG. 6 is a view for showing a state where the first PCB is seated in the control box of FIG. 4 .

Referring to these figures, the first PCB seating part 400 is provided at both right and left sides of the PCB receiving part 200 in a column shape protruding upward from the bottom of the PCB receiving part 200 by a predetermined height .

That is, the first PCB seating part 400 supports the lower surface of the first PCB 10 in the control box 100 and fixes the lower surface of the first PCB 100 at a predetermined height. A first fixing hole 420 is formed which is rotatably fixed.

6, when the first PCB 10 is pushed to the inside of the PCB receiving part 200, the first PCB 10 is mounted on the top of the first PCB receiving part 400, When the fastening member is fastened to the first fixing hole 420 on the upper side of the first PCB 10 in this state, the mounting of the first PCB 10 is completed.

Of course, the first PCB 10 may be further formed with a hole to allow the end of the fastening member to pass therethrough for the fastening structure.

FIG. 7 is a view showing the second PCB seating part in the control box of FIG. 4, and FIG. 8 is a view illustrating a state where the second PCB is seated in the control box of FIG.

Referring to these figures, a second PCB seating part 500 protruding from the upper side of the first PCB seating part 400 is further provided inside the PCB receiving part 200.

In detail, the PCB receiving part 200 has a larger receiving area as it goes from the lower part to the upper part as described above, and the upper part of the first PCB receiving part 400 has a larger receiving area.

The second PCB seating part 500 is protruded from the front side and the rear side of the accommodating space so as not to overlap the forming position of the first PCB seating part 400.

That is, the second PCB seating part 500 protrudes upward from the bottom surface of the extended receiving space of the PCB receiving part 200, so that the second PCB seating part 500 is positioned above the first PCB seating part 400, And a second fixing hole 520 for fixing the second PCB 20 by a fastening member is formed on the upper surface thereof.

8, when the second PCB 20 is pushed into the PCB accommodating portion 200, the second PCB 20 is brought into contact with the lower surface of the second PCB seating portion 500 In this state, the second PCB 20 is fixed to the second PCB seating part 500 by using a fastening member.

When the first and second PCB seats 400 and 500 are fixed as described above, the first PCB seats 400 and the second PCB seats 500 support the first PCB 10 and the second PCB 20 at different heights, Since the protruding positions of the first PCB seating part 400 and the second PCB seating part 500 are different from each other, there is no interference during mounting, so that it is possible to easily mount the first and second PCB seating parts 400 and 500.

FIG. 9 is a view for showing a state where the third PCB is seated in the control box of FIG. 4, and FIG. 10 is a view for showing a state where the first to third PCBs are seated in the control box of FIG. Respectively.

Referring to these figures, a third PCB seating part 600 is formed at an upper end of the PCB receiving part 200 so as to have a predetermined depth along the edge.

In detail, the third PCB seating part 600 is configured to support the third PCB 30 above the second PCB seating part 500, So that the edge of the third PCB 30 can be seated.

Since the third PCB seating part 600 is depressed downward along the edge of the center opening of the cover coupling part 300 as described above, the third PCB seating part 600 is not exposed to the upper side of the second PCB seating part 500, And is not interfered when the second PCB 20 is mounted.

A plurality of support protrusions 620 are further formed on the upper surface of the third PCB seating part 600 formed as described above.

The third PCB 30 can be separated from the third PCB seating part 600 by a predetermined height so that the cooling air is circulated to the lower part of the third PCB 30 to cause a cooling effect .

Hereinafter, the operation of the present invention having the above-described configuration will be described.

In order to assemble the electronic controller using the flush-mounted electronic control case 1 according to the present invention as described above, the control box 100 and the control cover 800 are separated from each other, The first PCB 10 is pushed in.

When the first PCB 10 is pushed into the control box 100 as described above, the first PCB 10 is supported by the first PCB seating part 400, When the fastening member is fastened to the first fixing hole 420 in the above state, the fixing of the first PCB 10 is completed.

After the first PCB 10 is fixed, the second PCB 20 is pushed into the control box 100.

When the second PCB 20 is pushed into the control box 100, the second PCB 20 is supported by the second PCB seating part 500 so that the first PCB 10 and the second PCB (20) are disposed inside the control box (100) with a predetermined distance therebetween.

When the fastening member is coupled to the second fixing hole 520 in the above state, the securing of the second PCB 20 is completed.

When the second PCB 20 is fixed as described above, the third PCB 30 is seated on the support protrusion 620 formed on the third PCB seating part 600, In this state, the control cover 800 is fixed to the cover coupling part 300, and the fixing of all the PCBs is completed.

When the fixing of the PCB is completed as described above, the display panel 700 is fastened to the panel fixing part 320 to complete assembly of the electronic controller.

1 ....... Embedded type electronic control case 100 ..... Control box
200 ..... PCB accommodating part 300 ..... Cover fastening part
320 ..... panel fixing part 400 ..... first PCB mounting part
420 ..... first fixing hole 500 ..... second PCB mounting part
520 ..... second fixing hole 600 ..... third PCB seating part
620 ..... Support protrusion 800 ..... Control cover

Claims (4)

A control box having an upper surface opened and an accommodation space expanded from a lower portion to an upper portion to provide a plurality of PCB accommodating spaces;
A control cover coupled to the control box; And
And a cover fastening part integrally formed at an upper end of the control box to provide a fastening space for the control cover,
In the control box,
A first PCB seating part protruding upward from the bottom surface to support and fix a first PCB to be accommodated therein,
A second PCB seating part protruding upward from a bottom surface of the extended accommodation space of the control box and positioned above the first PCB seating part and supporting and fixing a second PCB accommodated therein,
And a third PCB seating portion formed downward along the edge of the opened central portion of the cover fastening portion and positioned above the second PCB seating portion to provide a seating space of the third PCB.
The method according to claim 1,
Wherein the first PCB seating portion is protruded upward from both left and right sides of the bottom surface of the control box,
Wherein the second PCB seating portion protrudes upward from both sides of the bottom of the extended accommodation space of the control box.
The method according to claim 1,
A first fixing hole is formed in the first PCB seating portion to fix the first PCB using a fastening member,
And a second fixing hole is formed in the second PCB seating part to fix the second PCB using a fastening member.
The method according to claim 1,
And the third PCB seating part is provided with a plurality of support protrusions protruded upward, and supports the seated third PCB at a predetermined height.

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