JPH0923092A - Tray - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tray which suppresses wear or damage of terminal accommodation parts and improves the protective function of accommodated electronic components. SOLUTION: In a tray main body 2 in which terminal accommodation parts 8, 10 for accommodating the terminal parts 14, 16 of an electronic component (electrolytic capacitor 4) are formed, standing wall parts (skirt parts 18) as protective means are formed. The protruding length of the wall is greater than or equal to that of the terminal accommodation part. Thereby load dispersion to the standing wall parts is enabled, and the protection of the terminal accommodation parts and further the protection of an accommodated component are improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tray for accommodating a plurality of electronic components such as electrolytic capacitors, which is arranged and accommodated so as to be compatible with an automatic mounting machine.

[0002]

2. Description of the Related Art When mounting electronic parts such as electrolytic capacitors on a wiring board, an automatic mounting machine is used. This automatic mounting machine is a means for mechanically and uniformly transporting electronic components and a wiring board to improve wiring efficiency. Arrangement and supply of electronic components for the mounting work. , And a tray is used as the means. Further, this tray forms a transport container from the manufacture of parts to the wiring work, and a molded body of synthetic resin is used in terms of weight reduction and ease of manufacture. The synthetic resin is lightweight, has appropriate elasticity, and is excellent in workability such that it can be molded into a desired shape.

Taking an electrolytic capacitor as an example of an electronic component housed in such a tray, the electrolytic capacitor is
The external shape is such that a pair of plate-shaped or column-shaped terminal portions project from the end surface portion of the component body made of a cylindrical body.
In a tray for storing an electrolytic capacitor having such a shape, a component storage portion including a small recess for storing the terminal portion is formed, and a main body storage portion including a large recess for storing the component main body is formed on the upper stage of the recess. However, it is conceivable that a large number of such recesses are formed in accordance with the amount of parts to be housed and the formation positions thereof have regularity. When molding this shape with a synthetic resin, the wall thickness of the molded body can be reduced, so when using the concave side for storage as the surface,
A protrusion is formed on the back side. With such a configuration, the trays can be stacked and stored, and the trays storing the electronic components can be provided in a plurality of stages and stored in a packaging box for convenience.

[0004]

By the way, when a tray is molded from a synthetic resin sheet such as a thermoplastic resin, as an example thereof, as shown in FIGS. 3 (a) and 3 (b),
The resin sheet 100 is placed on the mold 102, and the mold 1
The resin sheet 1 is obtained by drawing air 106 in the mold 102 from a suction hole 104 that penetrates through 02, that is, by drawing a vacuum.
A molding method in which 00 is closely attached to the inside of the cavity 108 of the mold 102 for molding is adopted. In the tray 110 molded by such a molding method, the peripheral wall portion is formed to be the thinnest from the bottom surface portion 114 of the terminal accommodating portion 112 formed by the concave portion, and there is a possibility that it becomes fragile. It is considered that this is due to the remarkable elongation of the portion of the resin sheet 100 that is strongly evacuated by the molding method using the vacuum suction method, and the bottom corner, which is the final contact portion, becomes the thinnest. It is a tendency.

When an electrolytic capacitor is housed and held in such a tray and the terminal section is housed in the terminal housing section, the terminal housing section abuts the installation surface and supports the tray itself. For this reason, the bottom of the terminal storage part is damaged,
Alternatively, a load may act on the terminal portion of the stored electrolytic capacitor to damage it, and the tray may not function as a protection means for electronic components.

The above molding method is described only as an example. The strength of the terminal storage part in the tray decreases
It has no direct relationship with the above molding method. Naturally, if resin wrap around to the terminal housing part side by resin molding is reduced,
This is because that portion becomes thin and the strength decreases. In addition, such a decrease in strength of the molded body may also be caused by the shape of the mold.

Therefore, an object of the present invention is to provide a tray in which abrasion or damage of the terminal housing portion is suppressed and the protection function of the stored electronic parts is enhanced.

[0008]

In order to achieve the above object, the tray of the present invention has a terminal housing for housing the terminal portions (14, 16) of an electronic component (electrolytic capacitor 4), as illustrated in FIG. A vertical wall portion (skirt portion 18) is formed on the tray body (2) in which the portions (8, 10) are formed as a protection means having a protrusion length equal to or longer than the protrusion length of the terminal accommodating portion.

That is, the tray of the present invention is a tray for accommodating an electronic component (electrolytic capacitor 4) as described in claim 1, and is a main body accommodating portion (accommodating a component main body (12) of the electronic component ( A tray body (2) on which 6) is formed,
A terminal accommodating portion (8, 10) for accommodating the terminal portion of the electronic component by protruding from the main body accommodating portion of the tray main body;
The terminal housing portion is protected by the standing wall portion, which is formed on the tray body and has a standing wall portion (skirt portion 18) that is equal to or longer than the protruding length (L) of the terminal housing portion. It is characterized by

According to a second aspect of the present invention, the standing wall portion is formed in an outer peripheral edge of the tray and has a circular shape.

Further, as described in claim 3, a flange portion (20) is formed at an edge portion of the standing wall portion.

[0012]

The tray is a molded body of synthetic resin, and the terminal accommodating portion projects rearward from the tray body. The protruding length corresponds to the length of the terminal portion of the electronic component such as the electrolytic capacitor to be housed.

Since the standing wall portion having a protruding length equal to or longer than the protruding length is formed on the tray body in which the terminal storing portion having such a protruding length is formed, the standing wall portion adds to the terminal storing portion. Disperse stress to the standing wall side,
Alternatively, it can be avoided. As a result, the terminal accommodating portion can be protected from wear and damage due to the load when the electronic component is accommodated. In this case, the standing wall portion may have a standing wall shape, and it does not have to be a circular shape for the purpose of protecting the terminal accommodating portion and may have any width. It is a concept that includes what was formed. Therefore, the standing wall portion naturally includes a form in which the uneven portion formed for reinforcement on the tray body is extended.

In the second aspect, the concrete form of the standing wall portion is shown. Since the tray main body has, for example, a plate-like shape, the terminal accommodating portion can be protected by forming a standing wall portion on the peripheral edge of the tray main body and making it a spiral shape. The erected wall portion having such a winding shape can suppress the twist of the plate-shaped tray main body, and functions as a reinforcing means of the tray main body.

Further, claim 3 shows a developed form of the standing wall portion. By forming the flange portion on the edge portion of the standing wall portion, the reinforcing function thereof can be enhanced, and the flange portion can function as a seat to stabilize the installation.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to embodiments shown in the drawings.

1 and 2 show an embodiment of the tray of the present invention. FIG. 1 shows its plan shape, and FIG. 2 shows a cross section taken along the line II-II of FIG. 1 and its relationship with electronic parts.

In this tray, a tray body 2 having a substantially plate-like shape is provided with a body housing portion 6 and terminal housing portions 8 and 10 in which an electrolytic capacitor 4, for example, as an electronic component is to be housed. For example, as shown in FIG. 3, the tray of this embodiment is formed by a vacuum forming method in which a synthetic resin sheet formed of a thermoplastic resin or the like is placed on a mold and a vacuum forming machine is used.

The tray main body 2 has a plurality of main body accommodating portions 6 arranged in a plurality of rows and a plurality of columns in order to arrange a plurality of electrolytic capacitors 4 in a matrix and to enhance the storage efficiency. In this embodiment, the main body accommodating portions 6 forming each row are arranged on the side of the mutual spacing. Each main body storage section 6
A pair of terminal accommodating portions 8 and 10 are individually formed on the bottom surface side of the.

Electrolytic capacitor 4 to be stored in this tray
As shown in FIG. 2, when the configuration is roughly viewed, a columnar component body 12 and a pair of terminal portions 14 and 16 are formed. The electrolytic capacitor 4 is taken as an example of an electronic component to be stored in the tray, but this is a typical example.
It goes without saying that such a thing is not limited. In this embodiment, the terminal portions 14 and 16 are plate-shaped and are displaced from each other by a certain angle. Such displacement is one form of electrolytic capacitor, and while such form does not characterize storage in a tray,
In this embodiment, the terminal storage parts 8 and 10 are connected to the terminal parts 14 and 1.
It corresponds to the form of No. 6 and has the function of showing its rotation stop or directionality.

In this tray, the terminal accommodating portions 8 and 10 project from the back side of the tray body 2,
The protrusion length L constitutes the thickness from the upper surface of the tray body 2. Corresponding to the protrusions of the terminal accommodating portions 8 and 10, a skirt portion 18 forming a standing wall portion is formed in a circumferential shape on the peripheral edge portion of the tray body 2. This skirt 18
Is formed integrally with the tray body 2 and constitutes one molded body of synthetic resin.

In the case of this embodiment, the height H of the skirt portion 18 is set to be the same as the protruding length L of the terminal accommodating portions 8 and 10. That is, H = L.

A flange portion 20 protruding outward is formed at the edge of the skirt portion 18.

In the tray thus constructed, the component body 12 of the electrolytic capacitor 4 is placed in the body housing portion 6 and the terminal portion 1
When 4 and 16 are housed in the terminal housings 8 and 10, the load of the electrolytic capacitor 4 is distributed not only to the body housing 6 and the terminal housings 8 and 10, but also to the skirt portion 18. Therefore, even if the bottom surfaces of the terminal accommodating portions 8 and 10 are fragile due to the forming method or the like, it is possible to avoid the concentration of load on those portions, and the terminal accommodating portions 8 and 10 are damaged or damaged. Can be prevented. Such a load distribution can be sufficiently expected even when the protruding length L of the terminal accommodating portions 8 and 10 and the height H of the skirt portion 18 are set to be equal, and as a result, the electronic capacitors 4 and the like to be accommodated are stored. It is possible to contribute to protection of parts, and moreover, the durability of the tray itself is enhanced and it can be reused, and thus reuse is possible.

The flange portion 20 formed on the skirt portion 18 functions as a seating portion for the tray and also as a reinforcing means for the skirt portion 18 having a circular shape.

Although not shown, the skirt portion 18
If the height H of the electrolytic capacitor 4 is set to be larger than the protruding length L of the terminal housing portions 8 and 10 (set to H> L), the load applied to the tray body 2 by containing the electrolytic capacitor 4 is
It is possible to prevent the load from being concentrated on the terminal accommodating portions 8 and 10. Since the tray body 2 has elasticity, it is possible to reduce stress concentration on the terminal accommodating portions 8 and 10 even if the tray body 2 is deformed by a load.

Although not shown, the skirt portion 18
Is an example, and various forms are conceivable for the purpose of protecting the terminal housing portions 8 and 10. For example, the standing wall portion may be a plate-shaped member or a pillar-shaped member, may be formed by extending an uneven portion formed to reinforce the tray body 2, and may be formed by the pillar-shaped standing wall member. May be formed on the back side of the tray body 2 in a scattered or concentrated manner.

[0028]

As described above, according to the present invention,
The following effects are obtained. a. According to the first aspect of the present invention, the tray main body is reinforced by the standing wall portion, and the load applied to the terminal housing portion can be dispersed to the standing wall portion side, so that the terminal housing portion can be protected. When it is formed by, the durability of the tray itself can be improved without being affected by the molding conditions, and as a result, the protection of the electronic components housed can be improved. b. According to the second aspect of the present invention, since the standing wall portion is formed around the periphery of the tray main body in a circular shape, the mechanical strength of the tray main body is increased, and deformation when the electronic component is stored can be suppressed, and the terminal can be suppressed. It is possible to reliably prevent load concentration on the storage part. c. According to the third aspect of the invention, since the flange portion is formed on the standing wall portion, the installation of the tray is stable, the strength of the standing wall portion is further increased, and the load transfer to the terminal accommodating portion is suppressed as much as possible. Therefore, it is possible to improve the protection of the stored electronic components, the durability of the tray, and the reusability.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of a tray of the present invention.

FIG. 2 is a sectional view of the tray of FIG. 1 taken along line II-II.

FIG. 3 is a diagram showing an example of a tray molding method.

[Explanation of symbols]

 2 Tray main body 4 Electrolytic capacitor (electronic parts) 6 Main body storage 8, 10 Terminal storage 12 Component main body 14, 16 Terminal 18 Skirt (standing wall) 20 Flange

Claims (3)

[Claims] 1. A tray for accommodating an electronic component, the tray main body having a main body accommodating portion for accommodating a component main body of the electronic component, and the electronic component protruding from the main body accommodating portion of the tray main body. And a standing wall portion formed in the tray body and set to be equal to or longer than the protruding length of the terminal housing portion, the terminal housing portion including the terminal wall portion. Tray characterized by protecting the part. 2. The tray according to claim 1, wherein the standing wall portion is formed in an outer peripheral edge of the tray and has a circular shape. 3. The tray according to claim 1, wherein a flange portion is formed on an edge portion of the standing wall portion.