JPS5858010B2 - spectrophotometer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a spectrophotometer, and more particularly to a spectrophotometer that can streamline manufacturing operations, improve maintainability, and improve reliability.

A spectrophotometer that uses various control electrical parts inside, such as a light source, a detector, a wavelength drive motor, a chopper motor, a filter switching motor and solenoid, a synchronization signal generated in synchronization with the chopper motor, and a slit drive motor. The electrical connection with the drive power supply, various amplifiers, control relays, operation panels, etc. depends on the configuration of the device, but
In general, the configuration is quite complicated, and there are many aspects that do not lead to a reduction in cost by reducing the number of man-hours for manufacturing the device, or to improvements in reliability and maintainability by reducing the number of wires.

In particular, the above-mentioned parts cannot be placed in one place due to the configuration of the spectrophotometer, and must be placed at the shortest distance and most efficient place depending on the optical system.

In addition, the power supply, amplifier, control relay, operation panel, etc. must be selected and placed in a location where they will not block the various elements of the spectrometer or the light. In order to make the spectrometer airtight, the various electrical components and the outside of the spectrometer are currently connected through connectors.

With such conventional methods, it is difficult to reduce the number of wires required for wiring, and the device itself has to become complicated.

An object of the present invention is to provide a spectrophotometer that can further enhance the effect of wiring-free work by utilizing the wiring effect of a printed circuit board, and improve reliability and maintainability.

The figure is a sectional view of a spectrometer showing one embodiment of the present invention.

There is a first substrate 1 which is a constituent base material of the spectrophotometer, and various parts constituting the spectrometer are usually assembled on this substrate.

In this method, a seat 2 is provided on this first substrate 1, and a second substrate 3 is assembled on this seat 2.

Elements constituting a spectroscope, such as a reflecting mirror 4 and a motor 5, are incorporated in predetermined positions on the second substrate 3, and are covered with a spectrometer cover 6.

A backing 7 is placed on the spectrometer cover 6 for the purpose of blocking air and light from the outside.

This first board 1 has a hole 8 and is used for connecting wiring coming out from a motor 5 or the like through this hole.

In the gap between the substrate 1 and the second substrate 3, a wiring base material, for example, a printed circuit board 9 on which wiring is printed (usually referred to as a motherboard) is placed between the first substrate 1 and the substrate 1 by a spacer 10.
is fixed.

A connector 11 is soldered to the portion of the printed circuit board 9 where the hole 8 is located, so that a connector 12 attached to the end of the lead wire of the morph 5 can be inserted.

A backing 13 (preferably but not necessarily black) is provided between the first board 1 and the printed board 9 and between the printed board 9 and the second board 3 in order to prevent light from entering through the hole 8 and preventing air from circulating. (doesn't have to be black) and arranged to achieve that purpose.

With this configuration, a printed circuit board 15 can be attached to one side of the second circuit board 3 via the connector 14, and switches 16 necessary for the operation panel can be mounted on this printed circuit board 15. becomes possible.

It is possible to arrange another printed circuit board 17, a transformer 18, etc. on the other side of the second circuit board 3, and these printed circuit boards 15° 17, etc. Wiring connection is possible.

By attaching a decorative cover 19 to improve the appearance, it is possible to achieve a good appearance.

Here, the material used for the printed circuit board 9 is generally a Bakelite plate, and a very small amount of light may pass through the inside of the Bakelite plate and leak toward the hole 8. The amount of leakage is reduced by the decorative cover 19, and even if it leaks, the amount is extremely small and does not affect the performance of the spectrometer.

Further, depending on the structure, it may be sufficient to insert the backing only into either the first board 1 and the printed board or the printed board and the second board 3.

As described above, a preferred embodiment based on the present invention in which a printed circuit board is disposed between the first substrate 1 and the second substrate 3 can provide the following effects not seen in the prior art.

Remove the electrical components inside the spectrometer from other parts (such as the panel surface, etc.)
Although some wiring work is unavoidable in order to connect to the power supply (power supply section), this wiring work does not need to be done on the spectrometer board, and can be partially tilted (a single-time work with the minimum configuration). At this stage, you only need to connect the minimum required number of connectors to the electrical components, and after installing it on the spectrometer, you only need to plug it into the connector on the motherboard.

The work can be done reliably with just one slave, and there is almost no need for adjustment confirmation work.

Furthermore, when replacing parts, etc., it is possible to easily do so without having to modify the overall wiring.

Other control and drive electrical components can be reliably and easily placed and mounted on the front and back of the spectrometer board, for example, in cases where it is necessary to separate the amplifier from power supply problems, etc. The configuration is easy, such as when it is necessary to separate elements that generate a large amount of heat and elements that are easily affected by it.

Control parts such as switches mounted on the printed circuit board can also be directly led out to the decorative cover, etc., making it even more efficient.

As described above, for example, eliminating the need for wiring work between the power source section and the operating section, and streamlining the work, naturally leads to improved reliability.

In addition, by adopting this configuration, when a so-called external force is applied to the board 1 or the decorative cover 19 (such as placing it on a desk with poor flatness or placing heavy objects such as measuring instruments or samples on the decorative cover), When placed, the presence of the seat 2 prevents the direct mold from joining the spectrometer substrate, and the stability of the spectrometer is not lost.

In particular, if cushioning material is used for the seat 2, the effect will be increased.

In the unlikely event that the printed circuit board 9 breaks down, remove the outer decorative cover 19 and spectrometer cover 6, and install the second spectrometer cover.
It is also easy to remove the board 3 or pull out the printed board 9 from between the bases, making it easy to check the printed board 9 and easy maintenance.

These effects become more effective as the device becomes more sophisticated and complex, and for example, it has become possible to bring a device that used approximately 100 original wires to a state close to O.

As described above, according to the present invention, it is possible not only to further increase the effectiveness of the spectrophotometer when working without wiring, but also to significantly improve reliability and maintainability.

[Brief explanation of drawings]

The figure is a sectional view of a spectrometer showing one embodiment of the present invention. Explanation of symbols, 1...First board, 3...
- Second board, 15... curved printed board.

Claims (1)

[Claims] 1 A first substrate, a second substrate fixed on the first substrate with a predetermined gap maintained between the first substrate, and a second substrate fixed at a predetermined position on the second substrate. In a spectrophotometer including a spectrometer arranged, the first substrate and the second substrate
A spectrophotometer characterized in that a wiring base material is provided in a gap formed between a substrate and a substrate.