JPS6042898A - Skeleton of power source for analyzer - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a power supply device used in an analysis device, and more particularly, to the structure of its casing.

[Technical background of the invention and its problems 1 The constant-temperature reaction section of the analyzer is usually kept at a constant temperature of 37°C, so water is often used, so it is necessary to prevent water leaks or troubleshoot when water leaks occur. is important! However, the first
As shown in the figure, inside the analyzer@1, the constant temperature reaction section 2 is located at the top and the power supply section 3 is located at the bottom. Therefore, once water leaks from the constant temperature reaction section 2, damage to the power supply section 3 is inevitable.

Therefore, as a measure to prevent water leakage, there is a conventional example in which a shallow water prevention plate 4 is installed between the constant temperature reaction section 2 and the power supply section 3, as shown in Fig. Disadvantages include that the liquid may flow out, that space is taken up and the device becomes larger, or that air circulation within the housing is obstructed and the temperature inside the housing rises.

[Object of the Invention] The present invention has been made in view of the above circumstances, and provides a safe and reliable analyzer that is less susceptible to the effects of shallow water flowing from the constant temperature reaction part to the power supply part and in which the temperature inside the housing is less likely to rise. The purpose is to provide

[Summary of the invention! ] In order to achieve the above object, the present invention is characterized in that a punched metal or honeycomb structured plate having a large number of small holes is used on the upper surface of the casing of a power supply device used in an analysis device.

[Embodiment of the Invention] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In FIG. 3, the casing 3 of the power supply section has a lower plate 5, a side plate 6, and a large number of small holes 7a as the upper plate.

8a and punch metal 7.8. A power source is housed in this housing 3. The small hole 7a of the punched metal 7 and the small hole 8a of the punched metal 8 are configured so as not to overlap in the vertical direction. Also small holes 7a, 8a
is a circular hole with a diameter of 211, and the gap between the punch metals 7.8 is preferably about 2 ms. Further, the small holes 7a and 8a of the punched metal 7.8 do not necessarily need to be located on the entire surface of the upper plate.

Next, the operation of the casing configured as described above will be explained. The droplet 9 falling from above the punched metal 7 spreads on the punched metal 7, enters through the ventilation hole 7a, and tries to fall further. However, since there is a flat part of the punched metal 8 without small holes directly below, the droplet 9 cannot enter any further and stays between the punched metals 7 and 8. Therefore, the droplet 9 does not further enter the inside of the power supply.

Furthermore, as a modification of the above, if three or more punched metals are used, the intrusion of droplets can be more completely prevented. Naturally, ventilation is ensured through the small holes in the punched metal as shown by arrow A. Therefore, the heat dissipation of the power supply is not hindered.

FIG. 4 shows another embodiment of the present invention, in which a plate 10 is provided with a large number of small holes 10a of small diameter, instead of punched metal, on the top surface.
Alternatively, it is economical to provide a honeycomb structure l1ii10. In this case, Wi21!19 stays in the middle of the small hole 10a and is prevented from falling. In this case, the small hole 10a is a circular hole with a diameter of about 2III1 and a plate thickness of 211.
As described above, according to experiments conducted by the inventors, it has been found that if the thickness of the plate is greater than or equal to the small diameter, the droplets 41 hardly enter the casing.

In any of the embodiments, the droplets 4 that have stayed are dried over time by heat radiation from the power source. In particular, if the upper surface is made of a honeycomb structure plate, the open area ratio to the area can be increased, which is advantageous for ventilation.If the above-mentioned punch metal etc. are made of metal, it will of course have an electrical shielding effect. be.

[Effect of the Invention 1] As described above, according to the present invention, it is possible to prevent droplets from entering the power supply section from the outside without interfering with the heat dissipation of the power supply inside the NWA section, resulting in a safe and reliable system. Analyzers can be provided.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram of the analytical liH, FIG. 2 is a schematic diagram of the conventional analytical m1ll, and FIG. 3 is a vertical cross-sectional view showing an embodiment of the housing of the analytical 4 & stationary power supply unit according to the present invention. Front view, 4th
The figure is a longitudinal sectional view showing another embodiment of the present invention. 1... Analyzer, 2... Constant temperature reaction section,
3...Power supply section, 7.8...Punched metal, 10...Honeycomb structure plate.

Claims (4)

[Claims] (1) Analyzer type used in analyzers that have a constant temperature reaction section on the top and a power supply section on the bottom.In some cases, the top plate is made of punched metal or a honeycomb structured plate with many small holes. A housing for a power supply unit for an analyzer, characterized by: (2) The casing of a power supply unit for an analyzer according to claim 1, wherein a plurality of punched metal sheets are stacked one on top of the other with a constant gap. (3) Claim 2, characterized in that the small holes in two adjacent punch metal sheets do not overlap in the vertical direction.
The housing of the power supply unit for the analyzer described in Section 1. (4) The casing of the power source section for an analyzer according to claim 1, wherein the diameter of the hole in the honeycomb structure plate is smaller than the thickness of the plate.