JPS60183621A - Electronic computer - Google Patents

Abstract

PURPOSE:To attain an electronic computer not requiring a cooling fan by generating an upward air flow due to heat dissipation of a CRT display in the inside of a case and circulating the air by means of the stack effect intaking air from a lower ventilation hole. CONSTITUTION:Since the display CRT1 dissipates lots of heat substantially, an upward air flow is generated on the surrounding part from the heated part. Thus, cool air is sucked from the ventilation hole 26 opened to a base 12 to attain efficient air circulation in the closed space. That is, a component desired to be cooled such as a control circuit board 6 is placed at the lower position, a heat source is installed above it and the ventilation is conducted effectively by means of the so-called stack effect through the arrangement of the both in the same space. Since a CRT mounting metal fixture 11 and the enclosure are used for members forming the closed space, no special member is required and a large effect is attained inexpensively. Thus, the electronic computer not requiring a cooling fan is realized in this way.

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to office computers, word glossers, etc.
This article relates to the ``t5 child computer, which is good for achieving a large cooling effect.''

[Background of the invention]

Conventional electronic computers generate a large amount of heat, and in order to prevent the internal temperature from rising, they have a cooling fan inside the housing. In addition, the number of control boards is large, and a rack is required to store the boards, and a cooling facility is also required to cool the control boards in the rack. Therefore, when using the four electronic controllers in a quiet environment, the low frequency noise peculiar to the fan is unavoidable, and even if the noise level is low, it is an extremely unpleasant source of noise for the operator.

Also, in order to make the device cheaply, it is a good idea to increase the size of the control board and reduce the number of boards.
JJ, '4 There is a way to efficiently cool the board by storing the board itself upright, but considering design constraints and storage efficiency, the device would be too large, so A4 was not an option.

[Purpose of the invention]

The purpose of the present invention is to store a large horizontal J board (4) and downsize the device, and to provide an electronic n1 that does not require a cooling fan.
) I would like to offer cherry blossoms.

[41t4 and 5 of JJ] The present invention takes into account the corrective arrangement of each part in order to make the most of the cooling effect within the housing of the small ``Kameko 81'' aircraft. By placing heat-generating objects and objects to be heated in one closed space, the rising air of the heating element reduces the natural convection within the housing, in other words, the chimney effect cools the inside of the object. 7
2. Unnecessary electron transfer of fan.・（、：、
It is proposed that

In general, an electronic device is an arithmetic unit, 1t1 is a storage device,
9, comprising a control decoration, an input device, and an output device 1t;
Note 1. The device IF' has a main storage device and an auxiliary 1C storage device (also called external storage device 6), and the auxiliary storage devices include magnetic tape, magnetic drum, (i('C disk), etc., but economical 1 (1- or J (1h of iB production)
From 1 etc., small electron = t't't: 4. ', +4 and t1 Many use floppy disks.

However, small-sized electronic devices 110, -41, etc., word processors, etc. are generally equipped with a CRT display device 1:1' as a display device, and the device is operated while looking at the screen.

In addition, a small electronic meter, 1J, is used as the main component of the rock.
As mentioned above, pickles: device and main memory dj, input/output 1jJ
fI14I installation ηf accommodation is usually one or more fl
It is located on the ilJ control board. That is, a small 'electron 1
1p, machine or word processor is a main body (1μ, input device such as a key chain, printer, etc. It is generally configured with two output devices.

Specifically, in the present invention, a control board is installed horizontally at the bottom of the housing, a display C1tT is installed above the control board, and a floppy disk device and a power supply unit are connected between the display CI and T. When evaluating an electronic instrument, the floppy disk device and power supply unit are fixed to the display CIT T mounting bracket, and the side shape of the display CR'l' mounting bracket is approximated to the inner surface shape of the computer top cover. The upper cover is brought close to the display CRT mounting bracket, and the display CI (T mounting bracket 1) is characterized in that the bend at the end and the rising part of the lower case form a control board storage area. .

[Example of investigation j Figure 1 shows the external appearance of the main body of a total of 41 electronic machines developed in this study. Figure 2 also shows the structure of the Kameko computer according to the present invention.
It is a front view of Jesu. Moreover, FIG.
A perspective view showing the internal structure of the 98 aircraft with the top cover removed.

In Fig. 1, the display C)t T1 is located in the center of the book, and the floppy disk drive 2 is on the right side.
, and has a power switch 4 and a CILT display screen brightness control knob 5 on the left side. The casing of the main body is composed of a base 12, an escutcheon 32, and an upper cover 31, among which the upper cup 131 and the base 12 have a through hole for internal cooling.

The internal rA configuration of the electronic meter J4@ according to the present invention is shown in FIG. The CkLT mounting bracket 11 is fixed to the inside of the display C11T1 on both sides of the base 12 of the C11 T1 body using the CIT 'i' mounting bracket 11. By placing this CRT mounting metal fitting close to the inner surface of the upper cover and fixing the lower end surface with both end surfaces of the bent base, a single closed space is formed in which the CRT display and control board storage area are independent. I have something to do. The control board 6 is placed at the bottom of this closed space, a ventilation hole (B) 26 is provided in the rising part of the base around the control board 6, and a ventilation hole (B) 26 is provided at the back cover (-31 position) corresponding to the top of the display CRT 1. It has a hole (F) 21-a, and through this upper and lower ventilation hole, there is a display CRT mounting history 11 and a base 1.
2. This effectively promotes the chivalry in the closed space created by 2.

That is, since the C1LT display generates a large amount of heat due to its nature, an upward air current is generated in the heated area around the C1LT display. For this reason, the above-mentioned closed space is efficiently ventilated by sucking in cold air through the ventilation holes (B) 26 formed in the base 12. That is, by placing something to be cooled, such as the control board 6, at the bottom, placing a heat source above it, and placing both of them between the same and closed nitrogen, chivalry is actively carried out due to the so-called chimney effect.

In addition, the floppy disk drive 2 of C1 is shielded by the V mounting bracket 11, and 96
This prevents noise from entering.

This is the most effective arrangement +-4, as it is an arrangement that avoids the floppy disk device i'i2, which is susceptible to noise, from the unit 3, which tends to become a switching noise relaxation line.

In addition, the member that forms the closing gap is C11, T.
≦ Since we are using a 11-year-old and a donated body, we do not need any special parts for this purpose, and we can obtain large young fruits with a shaved ice. In addition, the power supply unit 3 and the floppy disk device key 2 are individually operated through ventilation holes 25 and 26 provided at the bottom of both sleeves of the base 12 to let cool air in for display purposes (C-I-J attached to ltT). The bending of the lower end of the -1 section is accomplished by passing through the ventilation hole (U) 27-a provided in the section 71C and exhausting the air from the ventilation hole (P) provided on the upper surface of the upper cover.

〔Effect of the invention〕

According to the present invention, the area of the control board can be increased, and the device itself can be made smaller. By circulating the air inside the case, there is no need for a cooling fan, which has the effect of reducing the size of the device itself, increasing the size of the tttlJ (illll board), and lowering the cost.

In addition, since a cooling fan is not used, there is no noise caused by the low-frequency mantissa of the fan, and the system is quiet and easy to operate.
It has the effect of obtaining 1,000 Δ1 increase, etc.

[Brief explanation of the drawing]

Figure 1 is a perspective view showing an embodiment of the main body of one electronic control panel according to the invention, and Figure 2 is an electronic H1 according to the invention. Figure 3 is a front cross-sectional view showing the structure of the X machine, and Figure 3 is a perspective view of the inside of Meiji's electronic 141° machine (with the top cover removed without removing A4 and 7). ... c1t'r for display, 2... Frotsuhi itθ person 3... Power supply unit, 4...'+u & switch, 5... Brightness W4 adjustment knob, 6... Control j
Substrate, 11...C1tT take-up] Benege, 12...
・Base, 21-a... Ventilation hole (C), 21-C...
・Ventilation hole (1'), '21-b...Ventilation hole <P), 2
5... Ventilation hole (S), 26...71fi ventilation hole (B)
, 27-a...]uj wind hole (U), 28...Base rib, 31...Tree 2 Figure η 3 Day 2 /'l-(Low)

Claims (1)

[Claims] 1. Install the control board horizontally at the bottom of the computer body, install the display CRT above the control board, and connect the floppy disk device and the standard unit by sandwiching the display CO and 'r. In the electronic meter, the floppy disk device and the 1.1LO1 unit are fixed to the display C-T mounting bracket, and the side shape of the display CUT '1' mounting bracket is fixed. Mo? 1ζ The shape of the inner surface of the upper cover is approximated, and the upper cover is placed close to the display C/T mounting bracket, and the lower case bending part and lower case stand-up part of the lower end of the display CI and T mounting brackets are approximated. An electronic 8119 machine characterized by forming a control board storage section in the section.