JPH0354790A - Air cleaner for magnetic disk device - Google Patents

Abstract

PURPOSE:To improve efficiency for collecting dust by providing a charging part to charge the dust in air on the upstream side of air flow, and an attracting part to collect the dust charged on the downstream side of the flow. CONSTITUTION:For a charging part 1, plural charging boards 1a are serially provided in the shape of a layer at intervals and for an attracting part 2, a lot of polyester boards 2a charged to a positive electric charge are serially provided in the shape of a layer at intervals. Accordingly, the air, for which the dust in the air is charged to a negative electric charge by the charging part 1, arrives at the attracting part 2. However, since the attracting part 2 is charged to the positive electric charge and the dust is charged to the negative electric charge, the dust is attracted and collected to the attracting part 2. Thus, the dust of fine grains, which can not be conventionally collected, is collected and performance is improved for cleaning the air.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention is applied to an air cleaner for a magnetic disk device used in an external storage device of a computer, etc. [Prior Art] As shown in FIG. 2, a magnetic disk drive includes a disk medium 4 for recording information, a motor 5 for rotating the disk medium 4, and a motor 5 for reading or reading information from the disk medium 4. A magnetic head 6 for accessing information writing, a carriage 7 for fixing and moving the magnetic head 6, a motor 8 for positioning the magnetic head 6, a container 10 for storing these, and a container 10 for storing these components. The container 10 is equipped with an air cleaner MI9 that allows the air taken into the container 10 to pass therethrough and removes dust from the air. Conventionally, the air purifier 9 has a mesh-like clothing filter that filters the air, and this filter is used to collect dust in the air. In this filter,
The finer the mesh, the higher the dust collection rate, but,
Even if the mesh was too fine, it would be difficult for air to pass through, so the mesh was set to a level that did not impede the passage of air. [Problem W1 to be Solved by the Invention] However, the above-mentioned conventional air purifier for a magnetic disk drive has a mesh-like shoe-like filter for filtering the air; The mesh can only be made so fine that it does not block the passage of air, so there is a drawback that fine dust particles pass through the mesh and cannot be completely removed. [Thousand Steps for Solving the Problems J] The means of the present invention for solving these problems is provided in a container containing a disk medium and a magnetic head that accesses the disk medium, In an air purifier for a magnetic disk drive that removes dust from the air by passing the air taken into the container, the air purifier is installed upstream of the flow path for the air to pass through and removes dust from the air with positive and negative charges. a charging unit that is charged to either one of the above, and an adsorption unit that is provided on the downstream side of the flow path and is charged to the other of the positive charge and the negative charge and attracts dust that is charged to one of the above. It is something.

[Embodiment] Hereinafter, an air purifier for a magnetic disk device according to an embodiment of the present invention will be described based on the accompanying drawings.

As described above, the magnetic disk device to which the air purifier according to the embodiment is applied, as shown in FIG. The magnetic head 6 is provided with a magnetic head 6, a carriage 7 for the magnetic head 6, and a motor 8 for positioning the magnetic head 6. These elements are housed within the container 10. And the air purifier 9 is this container 1
It is set within 0. The air cleaner 9 is for passing air taken into the container 10 and removing dust from the air.
As shown in the figure, a charging unit 1 is provided on the upstream side of the air flow path to negatively charge dust in the air. This charging section 1 is composed of a plurality of charging plates 1a arranged in layers at intervals. Further, on the downstream side of the air flow path, there is provided an adsorption section 2 that adsorbs the positively charged and negatively charged dust. This adsorption section 2 is made up of a large number of positively charged polyester plates 2a arranged in layers at intervals. Further, upstream of the WP power section 1 and downstream of the suction section 2, there are a plurality of adhesive plates 3 for adhering and collecting dust in the air to some extent.
is arranged directly to the flow path while keeping the shape of the flow path. Therefore, according to the air purifier 9 according to this embodiment, the air passing through the air purifier 9 first passes through the charging section 1. In this case, the dust in the air is negatively charged by the charging unit 1. Next, the air that has passed through the charging section 1 reaches the adsorption section 2 . In this case, since the suction part 2 is positively charged and the dust is negatively charged, the dust is attracted to the suction part 2 and is absorbed. Since even the smallest particles of dust are electrically charged, almost all of the dust is removed by suction in the suction section 2. That is, the negatively charged dust on the charged plate 1a is collected on the positively charged polyester plate 2a, and only purified air passes through.

Further, when the power is turned off, dust is collected on the adhesive plate 3. Incidentally, the dust may be positively charged, and the suction portion 2 may be negatively charged.

[Effects of the Invention] As explained above, according to the air purifier for a magnetic disk drive of the present invention, since dust in the air is adsorbed and removed by an electrostatic method, fine particles that could not be collected up to now can be removed. It has the effect of being able to collect dust and greatly improving air purification performance.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing an air purifier for a magnetic disk drive according to an embodiment of the present invention, and FIG. 2 is a perspective view showing an example of a magnetic disk drive to which this embodiment is applied. 1: Charging part 1a: Charging plate 2: Adsorption part 2a: Polyester plate 3: Adhesive plate
4: Disk medium 5: Motor 6: Air head 7: Carriage 8: Head positioning motor 9: Air cleaner

Claims (1)

[Claims] An air purifier for a magnetic disk drive that is installed in a container that houses a disk medium and a magnetic head that accesses the disk medium, and that removes dust from the air by passing air taken into the container. , a charging section is provided on the upstream side of the flow path of the air passing through and charges dust in the air to either a positive charge or a negative charge, and a charging section is provided on the downstream side of the flow path and charges the dust with a positive charge or a negative charge. An air purifier for a magnetic disk device, comprising: an adsorption section that adsorbs dust charged on one of the above and charged on the other.