RU2496700C1 - Protective cartridge - Google Patents

Abstract

FIELD: transport.

SUBSTANCE: invention relates to production of containers for store, transfer and processing of articles in fluids or gases that have at least one flat surface to be protected against mechanical damage. Protective cartridge is composed of a hollow container with hollow case to accommodate the article with at least one flat surface to be protected and cover to close the container inner space. Said case is shaped to truncated conical surface or truncated pyramid, its smaller bottom base being aligned with container base and larger top base being aligned with cover surface. Note here that said article is located nearby bottom base and has point or linear contact with sidewall of the case made of resilient material. Note here that auricle sizes dot exceed the case height.

EFFECT: higher safety in transfer of fragile pcb components.

6 cl, 5 dwg

Description

FIELD OF THE INVENTION

The invention relates to the field of devices for storage, gentle transportation and processing of products in a liquid or gas medium having at least one flat surface to be protected from mechanical damage, and more particularly, to the construction of a protective cartridge.

The term "careful transportation" should be understood as the absence of sharp shocks and vibration during transportation that violate the mechanical integrity of the product.

A protective container is known (see RF Patent No. 2395334, IPC B01J 1/00, C23F 15/00, dated October 21, 2008), consisting of an internal permeable and external gas impermeable wall, between which there is a gap for supplying gas. A solid blank of high-purity material is placed in the container, which repeats the shape of the inner cavity of the container. A gas is supplied through the porous wall of the container, which does not interact with the porous surface and the melt and creates a gas layer between them under a pressure exceeding the pressure inside the container. The preform is melted in the presence of a gas layer, and a container is used, the shape of which ensures that the gas rises up the wall without penetrating into the melt (for example, a cone or cone passing in the upper part into the cylinder).

This design does not serve to protect and transport fragile elements.

The technical solution according to French patent FR 2640108, A1 H05K 5/02 of 06/08/90 is also known. "A system for protecting and / or transporting fragile circuit board elements, in particular electronic circuits", which includes at least one shell for the location of the elements in a certain sequence, which has two partitions that open one relative to the other around a common element - a hinge, and whose surfaces are covered with an absorbent elastic shockproof material, the above shells for accommodating the element Comrade in a certain order are inserted into the compartments of the rack with folding top, which are placed inside the caliper holder.

The disadvantages of this solution are the complexity of the design and the use of elastic materials, which have the properties of adsorption of solid particles that can damage the surface of the product, as well as shrinkage, which limits the period of applicability of this design.

An object of the present invention is to increase the reliability of protection during transportation of fragile circuit board elements, in particular electronic circuits.

Indeed, it is necessary to protect such fragile elements of the boards when they are located on the board in a certain order, as well as to protect them from blows from the outside and make sure that they are not crushed or broken during transportation. In addition, these devices in which they are placed must ensure that they can be removed quickly and frequently without damaging them.

Disclosure of invention

To achieve the technical task, in a protective cartridge made in the form of a hollow container containing a hollow body, inside of which there is a product having at least one flat surface to be mechanically protected, and a lid covering the container cavity, the body is made in the form of a truncated a conical surface or in the form of a truncated pyramid, the lower — the smaller base of which is aligned with the base of the body, and the upper — the larger — with the surface of the lid, while the product is located at the lower base and has There is a point or linear contact with the side surface of the housing made of elastic material, while the dimensions of the product do not exceed the height of the housing.

In this case, the base of the container may contain at least one hole for injection of the protective gas or processing fluid into the cavity of the housing, and the lid - at least one hole for their exit,

- the base surfaces of the housing and the elastic material can be electrically conductive,

- the lid of the container for protecting several flat surfaces contains an additional cavity similar to the case, while the depth and shape of the cavities in the case and the lid of the cartridge are selected so as to avoid contact of the protected flat surfaces of the product with the surfaces of the cavities of the case and / or cover (by measuring their heights ),

- the lid cavity is covered with a layer of elastic material,

- the material for the manufacture of the housing and the cover is made of conductive material or of insulating material coated with a conductive layer,

- to provide dust protection during storage or transportation of products, the holes in the base and / or lid of the cartridge are insulated, for example, by gluing a protective film over the outer surfaces of the base and / or lid.

The product is placed in the cavity of the cartridge in a free (loose) state, protected by a flat surface to the tapering surface of the cartridge. Moreover, the product touches the surface of the cartridge only with corners or ribs formed by the protected flat surface with other surfaces of the product, regardless of the position of the product in the cavity of the cartridge.

For reliable storage and the possibility of processing products in a liquid or gas medium, at least one hole is made in the base of the cartridge for pumping liquid or gas into the cavity of the base, and at least one hole for the exit of liquid or gas is in the lid. At the same time, inert dust-free gas supplied with low overpressure is used as protection to provide better storage conditions.

If there are several surfaces to be protected, a tapering cavity is made in the cassette lid by analogy with the base, and the depth and shape of the cavities in the base and lid of the cassette are chosen so as to avoid contact of the protected planes of the product with the surfaces of the cavities of the base and / or lid.

To avoid chips in the corners of the product, the tapering cavity of the base and / or cover is covered with an elastic layer. In order to protect against static electricity, a conductive material or an insulating material coated with a conductive layer is selected as the material for making the base and cover.

If holes are provided in the base and / or cover of the cartridge, and the cartridge is operated under normal conditions, the holes are insulated, for example by gluing a protective film over the outer surfaces of the base and / or cover.

Brief Description of the Drawings

The invention is illustrated by specific examples of its implementation, in which:

figure 1 depicts a design variant of the cartridge with a truncated conical cavity of the container body;

figure 2 depicts a design of a cartridge with a truncated pyramidal cavity of the container body;

figure 3 depicts a design variant of the cartridge with a figured cover;

figure 4 depicts schematically an option for storing or processing products in a liquid or gas medium using a group of protective cassettes;

figure 5 depicts a use case of a cartridge for products of arbitrary shape.

The implementation of the invention

The protective cassette is made in the form of a container containing a hollow body 1 and a cover 2. The product 3 is placed in the housing 1, the cavity of which is made in the form of a tapering conical surface 4 (figure 1). The product 3 is placed by a protected plane 5 in the direction of narrowing of the cone. When this product 3 is based on the conical surface of the housing 1 only in the corners of the protected plane 5, forming a point contact with it. To avoid a high concentration of stresses at the points of contact, the inner cavity of the container body 1 is covered with an elastic layer 6. A necessary condition for protecting the plane 5 is the inability to turn the product 3 over the protected plane 5 to the cover 2. Therefore, the cassette is designed so that the size "a" would be larger zero and did not exceed the height of the conical or pyramidal surface. If it is necessary to protect the product 3 during storage from static electricity, the container (case 1 and cover 2) is made of electrically conductive material or coated with electrically conductive material (for example, case 1 and cover 2 are made of metallized plastic). In this case, the elastic layer 6 is also made of an electrically conductive material. This design has versatility, as it allows the use of products of 3 different sizes. The minimum and maximum dimensions of the product 3 in figures 1, 2 and 3 are shown by the dot-dash line. An inlet 7 may be provided in the housing 1 for supplying gas or liquid to the cavity of the base 1, and in the lid 2, an outlet 8 for their exit. This embodiment of the cartridge design is simple to manufacture (can be made using a countersink), which is important for the individual production of products 3, but does not provide preliminary orientation of the products 3, since they can rotate relative to the vertical axis of the cartridge.

In the embodiment shown in figure 2, the cavity of the container body 1 is made in the form of an inverted pyramid. This allows you to reduce the step of the location of the cavities in the cassette and, therefore, to reduce its size. In this embodiment, the product 3 is also located by the protected plane 5 in the direction of narrowing 4 of the cavity of the cartridge, but rests on the ribs of the plane 5. As shown in figure 2, the cavity may have an additional vertical supporting surface 9. In this embodiment, no high stress concentrations are created in places the contact of the product 3 with the surfaces of the container body 1. This design of the cartridge is more expensive to manufacture than the design shown in figure 1, but retains the preliminary orientation of the products 3 during storage, transportation and processing.

It may be necessary to protect against mechanical damage to the opposite planes of the product 3 (figure 3). Then it is advisable to produce a cover 2 with a figured cavity. One option is to repeat the design of the lid 2 similarly to the body of the container 1.

The housing 1 and the cover 2 may not have openings 7 and 8 if it is necessary to maintain the tightness of the cartridge and use the cartridge only for transportation and storage of the product 3. To protect against static electricity, the cartridge structure can be made, for example, of plastic with a metal layer deposited on it 10.

To store products in a protective environment or when processing products in the liquid or gas phase (figure 4), the location of the cartridges in the chamber 11 with the inlet of liquid or gas through the inlet pipe 12 and the outlet through the outlet pipe 13. In this case, the cartridges are installed in the windows of the separation partition 14, the liquid or gas passes through the inlet openings 7 of the cassette containers, wash the protected planes 5 of the articles 3, cleaning them from dust or processing them, and exit through the outlet openings 8 and then through the outlet pipe 13.

You can also provide protection against mechanical damage and processing of products 3 having an arbitrary shape and many protected flat surfaces 5 (figure 5). For example, products of a cubic shape or in the shape of a prism are also supported by corners or ribs on the tapering surfaces 4 of the lid 2 and the housing 1 of the cartridge container. In the same way, it is possible to provide protection of flat surfaces and processing in the liquid or gas phase of practically any product of the form 3.

This invention can be used:

- in the electronic industry for interoperational storage, transportation and processing of semiconductor wafers, crystals and other active and passive unpacked components;

- for storing photo masks and negatives on glass substrates;

- in optical-mechanical production for storage and transportation of prisms, lenses and other optical products;

- for transportation and storage of printed circuit boards, microboards and modules used in three-dimensional structures;

- for storage and transportation of jewelry;

- for the production of certain technological operations: liquid etching, washing, drying, processing in a gaseous medium, and also in many other cases for protection against mechanical damage of various products of various sizes and shapes.

Claims (6)

1. The protective cartridge, made in the form of a hollow container containing a hollow body, inside which is placed an article having at least one flat surface to be mechanically protected, and a lid covering the container cavity, characterized in that the body is made in the form of a truncated conical surface or in the form of a truncated pyramid, the lower - the smaller base of which is aligned with the base of the container, and the upper - the larger with the surface of the lid, while the product is located at the lower base and has a point or linear contact with the side surface of the body made of elastic material, the dimensions of the unit do not exceed the height of the housing. 2. The protective cartridge according to claim 1, characterized in that the base of the container contains at least one opening for injecting protective gas or processing fluid into the cavity of the housing, and the lid has at least one opening for their exit. 3. The protective cartridge according to claim 1, characterized in that the lid of the container contains an additional cavity similar to the cavity of the housing, while the depth and shape of the cavities in the housing and the lid of the cartridge are chosen so as to avoid contact of the protected flat surfaces of the product with the surfaces of the cavities of the housing and / or covers. 4. The protective cartridge according to claim 1, characterized in that the lid cavity is covered with a layer of elastic material. 5. The protective cartridge according to claim 1, characterized in that the material for the manufacture of the housing and the cover is made of conductive material or of insulating material coated with a conductive layer. 6. The protective cartridge according to claim 1, characterized in that for providing dust protection during storage or transportation of products, the holes in the base and / or the cover of the cartridge are insulated, for example, by gluing a protective film over the outer surfaces of the base and / or cover.

Images