JPS59145598A - Electronic device held by using printed circuit board holder - 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 The present invention relates to an electronic device held using a holder for a printed wiring board used in the electronic device.

2. Description of the Related Art Conventionally, modules used in electronic devices such as computers have been constructed by incorporating a large number of electronic components into a printed wiring board. However, for example, when handling a module board with a built-in semiconductor integrated circuit (hereinafter referred to as "C") containing an insulated gate field effect transistor, terminals of these components may become charged with a human body, insulators, etc. There is a risk that the transistor may be destroyed or its characteristics may be deteriorated by contact with the transistor. For example, when packaging a printed wiring board (module) on which electronic components are mounted, the lead terminals and soldering parts on the back of the board may come into contact with the inner wall (insulator) of the container, damaging the IC or deteriorating its characteristics. There is a risk.

Furthermore, when a module with electronic components mounted thereon is used on a workbench, there is a problem that solder, lead wires, etc. on the back side of the printed circuit board may be electrically short-circuited, or foreign matter such as dust may adhere to the module.

Furthermore, if you touch the mojiru board directly with your child, it will be greasy.

Salt, moisture, etc. may adhere to wiring and other electronic components and affect the lifespan of those components.

Furthermore, depending on the system to be constructed, it may be necessary to arrange a plurality of such module boards vertically or horizontally, but when expanding the number of module boards in this way, conventionally special A cabinet (box) was required and was quite expensive.

One object of the invention is to provide an electronic device for holding module boards or printed circuit boards (printed wiring boards).

Another object of the invention is to provide an electronic device that is inexpensive and easy to handle.

Another object of the present invention is to provide an electronic device suitable for expanding the number of module plates.

Another object of the present invention is to provide an electronic device that is capable of fixing a module plate when packaging an electronic device module and preventing destruction or characteristic deterioration of incorporated electronic components.

Another object of the present invention is to provide a substrate holder for facilitating handling of module boards or printed circuit boards.

Still another object of the present invention is to provide an electronic device or a module for an electronic device that is held using a substrate holder provided in accordance with each of the above objects.

The present invention will be explained below based on various embodiments.

FIG. 1 shows an electronic device or a module for an electronic device according to the present invention. In the figure, the holder 1 has a lower plate 2. The upper plate 4 has a pillar 3 that connects the drawing board, and a pair of claws 5 and 6 for holding the substrate are provided on the side surface of the pillar 3, and a gap 7 is provided between the claws. Here, a pair of pawls 8.9 are further provided on other parts of the side surfaces of the column 3, and a gap 10 is provided between these pawls. Gap 7 between these pawls,
A printed wiring board or module board 5, which will be described later, is inserted into 10 so that it can be held therein.

Here, a polyethylene molded material is used as the holder 1, and the lower plate 2. Top plate 4. Post 3゜claw portions 5, 6, 8.9
By forming all circuits in one piece, it is lightweight, inexpensive, and has excellent insulation properties, so it can be used with confidence even on boards with wiring layers on the side edge surface of the board. be able to.

FIG. 2 is a perspective view of an electronic device according to the present invention, in which a module board on which electronic components are mounted is held suspended using two of the above-mentioned holders. A pair of holders 1. The module plates 13 are arranged in parallel with each other with their claws facing each other, and the ends of the module plates 13 are inserted into the gaps between the corresponding claws and held suspended. As the module board, a module for an ultra-compact convenience user described in the specification and drawings of Japanese Patent Application No. 1982-46845 previously filed by the present applicant is used, and it is attached to the holder in this way. By holding the module board in suspension, the module board is held firmly and stably, and since the leads and soldering parts on the back of the module board are separated from the workbench, there is no risk of foreign matter such as chips adhering to the module board. holder 3 without touching the module board when moving or transporting the module board.
, 3. Since you can hold and work on the item itself, unnecessary things such as water, salt, and fat can be removed from electronic parts and leads.

There is no need to worry about adhesion to solder, etc., and you can handle it with great peace of mind.

Furthermore, it becomes easier to attach or detach electronic components to or from such a board using a soldering iron.

In addition, in the holder used for the electronic device or the module for electronic device or the module for computer of the present invention, as shown in FIG. 5 and FIG. In order to firmly and removably hold the board or printed wiring board 13, the spacing C between the bases of the claws, for example 8 and 9, should be slightly thicker than the thickness B of the board 13 (and the distance between the tips of the claws should be It is preferable to make the interval A slightly smaller than the thickness B of the substrate so that when the substrate 13 is inserted into the interval between the claws, the substrate can be gripped by the elastic tightening force of the claws.Furthermore, the claws 8, It is desirable to provide a convex roundness to the inside of the tip portion of 9 to facilitate insertion of the substrate.

Furthermore, in order to increase the durability of the claw part, it is better to make the claw part itself thicker at the base and thinner towards the tip, as shown in both figures. In addition, from the standpoint of ease of gripping the holder, it is better to have longer protrusions on the upper and lower plates, but from the viewpoint of workability, the length of the protrusion should be as long as it does not cause any inconvenience when processing the electronic components on the board. It is preferable that the protruding length E of the pawl portion is shorter than the protruding length of the main plate and the lower plate from the viewpoint of workability.

It is better to make the outer surfaces of the upper and lower plates flat to increase stability, and to increase mechanical strength, it is better to have the protruding parts tapered as shown in Figure 5. Although it is conceivable to make these holders vertically asymmetrical in order to give them directionality, it is preferable to make them vertically symmetrical in order to increase the compatibility of parts and make work easier.

FIGS. 3 and 4 are a sectional view and a plan view of essential parts, respectively, showing an example of an electronic device according to another embodiment. In this example, a pair of claw portions 23 are provided on the supports of the holders 11- and 21, respectively.
-24, 25-26 are provided, the printed wiring board 13 is inserted into the gap between them, and an electronic device to which various electronic components 14 to 17 are attached is placed on the workbench 12. There is.

As can be seen from the same figure, the position of the claws relative to the pillars is such that the electronic components mounted on the board 13 do not protrude beyond the plane formed by both upper plates of the holder (i.e., G >F), and it is desirable that the tip 18 of the lead wire on the back side of the board, the metal fittings 42 for mounting parts, etc. do not protrude beyond the plane formed by both lower plates of the holder (K (i.e., H) M). . Also, the length L of the holder is the length K of the substrate 13.
It is more convenient for handling if it is larger than that. Also, as can be seen from Figure 4, the wiring 2 on the printed wiring board
2 is provided up to the side surface of the board, the claw portion 26 can be placed on top of the wiring 22 by forming the claw portion 26 with an insulating material with a smooth surface such as a polyethylene molded material. I can do it.

FIG. 7 shows two module boards 35 on which electronic components are mounted using a holder 31°41 with two stages of claws.
．． 36 shows an example of an electronic device that is suspended. In this way, if it is desired to increase the number of substrates, this can be easily done, and both substrates can be aligned freely.

In such an example, as can be seen from the figure, it is necessary to select the spacing J between the pawls so that the parts attached above and below do not come into contact with each other.

If you want to expand the entire system by using even more boards, stack multiple boards shown in Figure 7 as shown in Figure 8, and use the upper and lower plates to connect bolts between them. (3Q), or the upper and lower plates may be firmly connected using an adhesive.

FIG. 9 shows a state in which the substrate 43 is held in a holder 41 and is placed on a workbench 44 using the plane formed by the upper and lower plates, so that the substrate 43 is vertically erected. By doing this, you can see the back surface of the board directly and it becomes easier to do work such as soldering. Further, when a plurality of substrates are to be stood perpendicularly to a workbench, it is convenient for stability to attach a holder 42 to the upper end of the substrates as shown in the figure.

FIG. 10 shows an example in which a module 13 on which electronic components are mounted is housed in a container 27 made of an insulating material, such as styrene foam. By storing the module 13 suspended in the storage hole of the container 27 by the pair of holders 31 and 41 as shown in the previous embodiment, electronic components, leads, soldering parts, etc. are not directly attached to the container. Since there is no touching, electrostatic damage to electronic components can be prevented. In addition, in order to stabilize the package against vibrations during transport, use a holder with a size, length, and height that matches the size of the storage hole. Therefore, it is better to fix the board in the storage hole. Note that 28 is a lid made of expanded polystyrene.

FIG. 11 shows a pair of holders 31.4 inside a conductive plastic bag (referred to as conductive equipment) 43 to prevent electrostatic damage to electronic components during transport of the module body 13.
The module 13 is shown housed in a state where it is held by the handles 1 and 1.

For example, when using an opaque (for example, black) conductive device, the holder 31 or 4
By grasping it by hand, it can be transported and transported without damaging the wiring or electronic components. Furthermore, the upper and lower plates of these holders 31 and 41 can be used to stack module bodies. On the other hand, if the module board is directly stored in the groove electrical equipment without using a holder, the conductive equipment may be damaged by the tips of the lead wires with acute angles protruding from the back of the module board. When stacked in stages, there is a risk that the tips of the lead wires on the upper module board may damage the surface of electronic components or the wiring pattern on the lower module board.

Furthermore, FIG. 12 is a perspective view of another modified holder, in which the claw portion is provided at two separate locations on the side surface of the support column 3. Also, as shown in Figure 13, there are stoppers 44 and 45 on the claws.
may be provided and used for positioning the inserted board.

Although it has been stated that polyethylene is preferable as the material for the holder used in each of the above embodiments, other materials may be used depending on the individual objectives of the present invention. Note that it is desirable that the holder be suitably soft in order to provide elasticity to the claws, etc., and to prevent the surface of the board from being damaged when inserting the board. For example, when it is made of polyethylene, it may be molded by containing about 20% medium-low pressure polyethylene material and about 80% high-pressure polyethylene material.

As described above, according to the present invention, when a module body is packed in a container such as Styrofoam, which is made of Kunjong material, it is possible to Various effects can be achieved by solving the problem of parts being destroyed or properties being deteriorated due to direct contact of the tube with the container.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a holder used for an electronic device or a module for an electronic device or a module for an electronic computer according to the present invention, and Fig. 2 shows a state in which the module body is held using the holder. A perspective view, FIGS. 3 and 4 are sectional views and plan views of main parts for explaining other embodiments, and FIGS. 5 and 6 are main parts for explaining the relationship between the holder and the substrate. 7 to 9 are sectional views of essential parts of an electronic device for explaining other embodiments; FIG. 10 is a sectional view of essential parts showing a packaged state of an electronic device according to the present invention; The figure is a perspective view of an electronic device for explaining still another embodiment, and FIGS. 12 and 13 are perspective views of still other holders. 1, 1. ' , 1'', ] 1 , 21 , 31
, 32 , 33 . 34.41.42...Holder, 2,2'...Lower plate,
3゜3'... Support, 4, 4'... Top plate, 5, 6, 8
．． 9...Metal part, 13...Module body (printed wiring board), 44°45...Stopper. Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Figure 10/,j Figure 11

Claims (1)

[Claims] 1. A holder having a pair of claws on the side surface of a support that connects an upper plate and a lower plate, and a printed wiring board whose end is inserted into the gap between the claws and held. An electronic device comprising: 2. A pair of holders having a pair of claws on the side surfaces of the support that connects the upper plate and the lower plate are arranged so that the claws face each other, and are attached to both sides of the computer module board. A module for an electronic computer, characterized in that the module plate is suspended and held by both holders, and the module plate is suspended between the two holders. 3. A pair of holders having a pair of claws on the side surfaces of the column connecting the upper plate and the lower plate are arranged so that the claws face each other, and the electronic device module plate A module for an electronic device, in which both sides of a module plate are inserted into the gaps between the claws so as to be suspended and held by the side claws, is housed in a container while being integrated with the holder. A module for electronic devices featuring: