JPH0234792Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a cleaner for cleaning contacts of a printed circuit board connector.

(Prior art and its problems) Printed circuit board connectors have become popular with the development of labor-saving and high-density internal mounting methods for electronic devices using printed wiring boards, and card edge type connectors in particular are small and compact. Because it is economical,
It has been widely used as an electrical connection in various industrial electronic equipment or computers, especially recently as a connector for connecting a ROM cartridge containing a program to a home computer or game machine.

By the way, when using connectors, contact failures often occur due to increased contact resistance. Contact resistance consists of lumped resistance and boundary resistance, but especially when used for home use, people who do not have expertise in handling connectors often contaminate the contacts, resulting in an increase in boundary resistance. Many problems with poor contact occur. In order to prevent this, it is effective to clean the contacts, but in the past, it has been difficult to clean the connectors, especially the female connectors, with a suitable method that can be easily and efficiently cleaned and that can be used many times. Cleaner is not realized.

For example, Japanese Utility Model Application Publication No. 57-17086 proposes a connector cleaning tool that cleans the connector by inserting and removing a felt part fixed to the end of a flat plate into the connector, but such a cleaning tool does not work well at best. The disadvantage is that the felt portion becomes dirty after being used several times, making it impossible to use it any longer, which is extremely uneconomical.

(Technical means for solving the problem) In view of the above-mentioned problems, the present invention was developed for cleaning female connectors in which many female contacts are lined up in a row, such as card edge type female connectors. The purpose of the present invention is to provide a cleaner that is easy to handle, can be used many times, and has a simple structure.

As a technical means to achieve the above object, the cleaner for printed circuit board connectors of the present invention has a thin plate-like body part 2a that is formed integrally with the main body part 2a having a substantially rectangular shape, and protrusion parts 2b that are integrally formed on the upper part of the main body part 2a and protrude to both left and right sides. An endless cloth-like body 3 is placed on the substrate 2 of the main body 2.
It is slidably and rotatably wrapped around both upper and lower end edges 4, 7 of a, and both the protrusions 2b, 2b
A configuration is adopted in which stepped portions 6, 6 are formed between the main body portion 2a and the cloth body 3 to prevent the cloth-like body 3 from shifting to both sides.

(Example) Hereinafter, an example of the present invention will be described based on the drawings.

In FIG. 1 and FIG. 2, the cleaner 1 is
A hygroscopic cloth-like body 3 is wrapped endlessly around a substrate 2 made of a substantially rectangular thin plate so as to be slidable and rotatable. The substrate 2 consists of a main body portion 2a and protrusions 2b, 2b provided above both end edges of the main body portion 2a, and the entire substrate 2 is integrally formed of, for example, a metal plate, a plastic plate, a laminated plate, or the like. The upper end edge 4 of the main body 2a has a protrusion 2b,
Slightly inward from the upper edge 5 of 2b,
Step portions 6, 6 are provided here. The above-mentioned cloth-like body 3 is stretched between the edge portions 4 and 7 in a slightly tensioned state, and the stepped portions 6 and 6 cause the cloth-like body 3 to
It is designed so that it will not shift laterally even if it is rotated and slid. The cloth-like body 3 is used to clean contact parts (contacts) of connectors, etc. by soaking it with an appropriate cleaning liquid and cleaning it. Consists of skin, etc. Then, with the cloth-like body 3 wrapped around the substrate 2, the cleaner 1
Its thickness is almost the same as that of a commonly used printed circuit board. The above-mentioned protrusions 2b, 2b
includes a bag-like body 8 made of the same material as the cloth-like body 3;
8 is covered and fixed with adhesive or the like.

As shown in FIG. 3, the cleaner 1 configured as described above impregnates the cleaning liquid 9 near the tip edge 3a of the cloth-like body 3, and then uses the knife that requires cleaning the tip edge 3a. Insert and remove from connector 10, or repeat insertion and removal several times. As a result, dirt on the contacts of the female connector 10 is wiped off and cleaning is performed. Tip edge 3 of cloth-like body 3
If the cloth-like body 3 becomes dirty, the cloth-like body 3 is rotated while sliding on the substrate 2, so that a new part of the cloth-like body 3 becomes the leading edge 3a. Thereby, almost the entire surface of the cloth-like body 3 can be used for cleaning, and the cleaner 1 can be used many times. If the entire cloth-like body 3 becomes dirty, it can be removed from the board 2 by pulling it forcefully to the side beyond the stepped portion 6. It is possible to replace it with a refurbished product. In addition, cloth-like body 3
The cloth body 3 may be used for preliminary cleaning or final cleaning depending on the position of the cloth body 3, and the cloth body 3 may be rotated and used depending on the degree of dirt on the female connector. The bag-like body 8 is used to soak the cleaning liquid 9 and clean the card edge (i.e., male connector), and has a certain width.
Cleaning can be done quickly and reliably.

As described above, according to this cleaner 1, cleaning of the contacts of the female connector 10, which has been extremely difficult in the past, can be easily and reliably performed. Moreover, this cleaner 1 can clean the male and female connectors, which is very convenient, and the structure is simple and economical.

(Effects of the invention) According to the cleaner of the invention, female connectors can be cleaned easily and reliably, and by rotating the cloth-like body, the cloth-like body can be effectively used over the entire length. Moreover, it can be used many times over a long period of time. Moreover, it has a simple structure and can be manufactured at low cost.

In particular, in the cleaner of the present invention, since the cloth-like body is wrapped around both the upper and lower edges of the main body of the board, it is easy to attach and remove it from the board, and the whole cloth-like body is free from dirt. If the product is damaged, it can be replaced with a new product or a recycled product that has been cleaned by washing, etc., and when it is wrapped, the steps formed between the main body and the protrusions on both sides prevent it from shifting laterally. Therefore, it has the advantage of being easy to handle.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a front view of the cleaner, FIG. 2 is a sectional view taken along the line -- in FIG. 1, and FIG. 3 is a perspective view showing the cleaner in use. DESCRIPTION OF SYMBOLS 1... Cleaner, 2... Substrate, 2a... Main body part, 2b... Protrusion part, 3... Cloth-like body, 6... Step part, 7... End edge part.

Claims (1)

[Scope of utility model registration request] An endless cloth-like body covers both upper and lower edges of the main body and slides onto a thin plate-like substrate consisting of a substantially rectangular main body and a protrusion integrally formed on the upper part of the main body and protruding to both left and right sides. 1. A cleaner for a printed circuit board connector, which is rotatably wound and has a stepped portion formed between both of the protrusions and the main body to prevent the cloth from shifting to both sides.