JP2008184180A - Packaging device for power semiconductor device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a packaging device that protects a power semiconductor devices from falling impact during handling for transport, vibration impact during transport, or compression load during transport and storage. <P>SOLUTION: The packaging device 100 is employed for packaging the power semiconductor devices 1 comprises a tray 50 that is open at the top and includes: a rectangular bottom plate 2; side plates 3a, 3b, and 3c extending upwards from the four sides of the bottom plate 2 and having height greater than the thickness of each of the power semiconductor devices; partitions 17 sectioning the inside into a plurality of rectangular accommodating parts 30 for the power semiconductor devices 1; bases disposed at the four corners of each of the rectangular accommodating parts 30, having the form of a parallelepiped that is almost identical in height to the side plates 3a, 3b, and 3c, and serving to receive the corners of the substrate of each of the inverted power semiconductor devices 1 with the base plates 9 that are at the tops of the bases. The packaging device 100 also comprises a lid 60 for covering the opening made at the top of the tray 50 accommodating the power semiconductor devices and for fixing the substrates of the power semiconductor devices to the base plates 9. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a packaging device for packaging a power semiconductor device during transportation.

  A conventional packaging device for a power semiconductor device has a structure in which a partition for accommodating the power semiconductor device is provided in a box, and the power semiconductor device is placed horizontally or vertically in the partition.

  In addition, as a conventional packaging box, it is formed by bending a piece of corrugated paper, and a holding unit is integrally connected to the side plate, and the box-shaped electronic device as a packaged object is a top plate, a bottom plate, In addition, there is a type in which a gap is held between each side plate and the side plate (see, for example, Patent Document 1).

  Also, as a conventional packaging container, a polygonal bottom piece and a side piece having the same number as the number of sides connected to each side of the bottom piece are integrally cut out from a piece of corrugated paper to form a container mold. In addition, the continuous part of the bottom piece and each side piece of the container mold material is bent into a three-dimensional shape so that a small electronic device such as a tape recorder, a radio, or a CD player can be stored as a single unit. A support pillar piece that can be bent into a rectangular tube shape is continuously provided at a total of three or more of the two or more side face pieces among the side face pieces. Some support portions are provided with a content support portion that elastically deforms when an external force is input to a side surface contact portion that contacts the corner portion of the object (see, for example, Patent Document 2).

  Also, as a conventional corrugated cardboard packaging box, a corrugated cardboard sheet is folded, and a main member is formed by sequentially connecting a front plate, a bottom plate, a back plate and a lid plate from both sides of the front plate. A side member connected to the cover plate is continuously provided, and an outer plate, a top plate, and an inner plate that are sequentially extended from the bottom plate are provided on the side member, and a polymerization plate is provided continuously on the front end of the inner plate and both side edges of the cover plate. The side plate is folded inward and overlapped with the main member, the outer plate is folded upward, the top plate is folded inward, the inner plate is folded downward, and the folded pieces connected to both ends of the outer plate are folded. There is a buffer structure that stands up, closes the lid, and can accommodate a box-type electronic device such as a video deck (see, for example, Patent Document 3).

  In addition, as a conventional packaging box, it is provided with a packaging part that is formed by bending a piece of corrugated paper and constituting the outer shape of the box, and a buffer part that is integrally formed with the packaging part and protects a single electronic device as a stored item. In the packaging box, the buffer portion is formed by bending only a pair of side plates constituting the side surfaces of the box facing each other, and has a buffer function for the up-down direction, the left-right direction, and the front-rear direction of the contents. Some of them are formed in a shape in which a buffer space is provided in each of the above-described directions between the stored item and the packaging part (see, for example, Patent Document 4).

JP 09-301351 A JP 2000-142667 A JP 2001-261031 A JP 2005-014965 A

  However, the conventional technique described above is to provide a cardboard paper partition in the packaging box, and to place the electronic device flat or vertically there. Therefore, when a power semiconductor device as an electronic device is packaged in a conventional packaging box and dropped in a packaged state during transportation, the electrode terminal of the power semiconductor device is bent and deformed due to the impact. If a large amount of packaging material is used to protect the electrode terminals, the protective property is improved, but there is a problem that the packaging box becomes larger and heavier and the transportation efficiency is lowered.

  The present invention has been made in view of the above, and is a packaging device capable of protecting a power semiconductor device from a drop impact during transportation cargo handling, a vibration impact during transportation, or a compressive load during transportation and storage. The primary purpose is to obtain Furthermore, a second object is to obtain a packaging device that can reduce the packaging size and improve the transportation efficiency.

  In order to solve the above-described problems and achieve the object, a packaging device for a power semiconductor device according to the present invention includes a substrate formed in a square plate shape and provided with mounting holes at four corners, and a rectangular thick plate shape on the substrate. A power semiconductor device comprising: a molded part molded with a notch formed at four corners so as to avoid the mounting holes; and a plurality of electrode terminals led out from the molded part to a side opposite to the substrate by a predetermined length. A packaging device for packaging, a bottom plate formed in a square shape, a side plate standing from four sides of the bottom plate and having a height higher than the thickness of the power semiconductor device, and a square containing the power semiconductor device inside A partition plate that is divided into a plurality of housing portions; and a rectangular parallelepiped shape that is provided at the four corners of the rectangular housing portion and has the same height as the side plate, and is inverted to the base plate on the upper surface. The base for placing the corner of the board , And a lid portion that covers an upper opening of the tray portion that accommodates the power semiconductor device and fixes a substrate of the power semiconductor device to the base plate. And

  According to the present invention, the power semiconductor device can be protected when subjected to a drop impact during cargo handling, a vibration impact during transportation, or an external force such as a compressive load during storage / transport, and the packaging size can be reduced. There is an effect that a packaging device that is compact and improves transportation efficiency can be obtained.

  Embodiments of a packaging device for a power semiconductor device according to the present invention will be described below in detail with reference to the drawings. Note that the present invention is not limited to the embodiments.

Embodiment FIG. 1 is a perspective view showing an outer shape of a power semiconductor device, and FIG. 2 is a perspective view showing a power semiconductor device packaging device according to an embodiment of the present invention with a lid opened. FIG. 3 is a perspective view showing the assembly process of the packaging device, FIG. 4 is a development view of the packaging device, FIG. 5 is a perspective view showing the partition plate of the embodiment, and FIG. FIG. 7 is a perspective view showing a state in which the power semiconductor device is accommodated in the packaging device, FIG. 8 is a perspective view showing a state in which the lid of the packaging device is closed, and FIG. FIG. 10 is a cross-sectional view showing a state in which the power semiconductor device is housed in the packaging device, FIG. 10 is a perspective view showing a state in which the packaging device is housed in a cardboard box, and FIG. 11 shows housing in the cardboard box. It is a perspective view which shows the state which closed the flap.

  As shown in FIG. 1, a power semiconductor device 1 is formed in a square plate shape, a substrate 1a provided with mounting holes 1b at four corners, and molded into a square thick plate shape on the substrate 1a, and mounting holes at four corners. The mold part 1c is formed with a notch 1e so as to avoid the above, and a plurality of electrode terminals 1d led out to a predetermined length from the mold part 1c to the opposite side of the substrate 1a. The power semiconductor device 1 is formed as a square thick plate as a whole. 1 shows an example of the shape of the power semiconductor device, and the power semiconductor device is not limited to the shape shown in FIG.

  As shown in FIGS. 2 to 4, the packaging device 100 according to the embodiment is formed by bending a cut piece of corrugated cardboard, and the tray unit 50 that opens upward and accommodates the power semiconductor device 1. A box having a lid 60 that covers the upper opening of the tray 50 and presses and fixes the power semiconductor device 1 to the tray 50 and two sheets of corrugated paper that divides the tray 50 into three sections. Partition plates 17 and 17 are provided.

  The packaging device 100 can accommodate three power semiconductor devices 1. The bottom plate 2 of the tray unit 50 has a short side length slightly longer than the long side length of the power semiconductor device 1, and the long side length slightly longer than three times the short side of the power semiconductor device 1. It is formed in a square shape.

  A rectangular front side plate 3a bent upward is connected to the front short side of the bottom plate 2, and a rectangular rear side plate 3b bent upward is connected to the rear short side of the bottom plate 2, and the left and right long sides of the bottom plate 2 are connected. Rectangular side plates 3c and 3c that are bent upward are connected to the side. The height of the front side plate 3a, the rear side plate 3b, and the lateral side plates 3c, 3c erected from the four sides of the bottom plate 2 is about 1.5 times the total thickness including the length of the electrode terminal 1d of the power semiconductor device 1. Is formed.

  The upper side of the side plate 3c is connected inward to a six-piece square base plate 9 that is bent inward and on which the corner of the substrate 1a of the power semiconductor device 1 is placed. Square side legs 20 that bend to the left are continuously provided. On the inner side of the base plate 9, square inner legs 21 and 22 to be bent downward are provided in succession. The base plate 9, the side leg portion 20, and the inner leg portions 21 and 22 are bent to form a rectangular parallelepiped base portion 25. In addition, a rectangular bottom reinforcing plate 23 that is bent outward is connected to the lower sides of the inner legs 21 and 22, and a rectangular rear plate reinforcing piece 10 that is bent inward is connected to the rear side of the lateral plate 3c. It is installed.

  Slits 4a, 4c, and 4c are formed along the bent portion at the center of the bent portion between the bottom plate 2 and the side plates 3a, 3c, and 3c. Further, slits 8 extending between the base plates 9 and 9 from the upper portion of the inner leg portion 22 are formed in the two inner leg portions 22 on the left and right sides near the center. Further, a trapezoidal cutout portion 7 into which a later-described insertion piece 14c is fitted is formed outside the center portion of the bottom reinforcing plate 23.

  The lid 60 is connected to the upper side of the rear plate 3b and bent forward to cover the upper opening of the tray 50, and the front cover is connected to the front of the top plate 12 and bent downward to cover the front plate 3a. A plate 13a, a trapezoidal insertion piece 14a connected in the center of the lower side of the front lid plate 13a and bent inward, and inserted in the slit 4a, and connected to the left and right of the top plate 12 and bent downward to cover the lateral plate 3c. A horizontal cover plate 13c, a trapezoidal insertion piece 14c that is connected to the center of the lower side of the horizontal cover plate 13c, bends inward, is inserted into the slit 3c, and fits into the notch 7 described above, and the horizontal cover plate 13c. And a rectangular front plate reinforcing piece 15 that is connected to the front side and bends inward. Semicircular notches 16 and 16 are formed on the left and right sides of the bent portion between the rear plate 3b and the top plate 12, respectively.

  As shown in FIGS. 5 and 6, the partition plate 17 is formed in a rectangular shape by folding two rectangular corrugated cardboard sheets, and a semicircular cutout portion 18 is formed at the center of the bent side. The slits 19 and 19 are cut into two places on the long side, and the outer sides of the slits 19 and 19 on the other long side are cut out by the thickness of the corrugated paper.

  Next, with reference to FIGS. 2-9, the packaging method of the power semiconductor device 1 by the packaging apparatus 100 is demonstrated. First, as shown in FIG. 3, the lateral side plates 3 c and 3 c of the tray unit 50 are bent vertically upward with respect to the bottom plate 2. Next, the base plate 9 is bent horizontally inward at right angles to the lateral side plates 3c and 3c. Next, the side legs 20 are bent downward vertically with respect to the base plate 9.

  Next, the bottom reinforcing plate 23 is bent downward at a right angle with respect to the inner leg portions 21 and 22, and then the bottom reinforcing plate 23 is slid outward on the bottom plate 2 so that the inner leg portions 21 and 22 are moved. The bottom reinforcing plate 23 is brought into close contact with the bottom plate 2 by bending vertically with respect to the base plate 9. A base portion 25 is formed by the base plate 9, the side leg portions 20 and the inner leg portions 21 and 22. The height of the base plate 9 on the upper surface of the base portion 25 is substantially the same as the height of the side plates 3a, 3b, 3c.

  Next, as shown in FIG. 2, the two partition plates 17 are inserted into the respective slits 8 of the tray portion 50, and the slits 19 of the partition plate 17 are fitted into the lower half of the inner leg portion 22 of the tray portion 50. The partition plate 17 is fixed to the tray unit 50. The tray part 50 is partitioned into three by the partition plates 17, 17, and the rectangular accommodating part 30 of the power semiconductor device 1 having three sections is formed in the tray part 50. The depth of the accommodating portion 30 from the upper surface of the base plate 9 is deeper than the thickness of the power semiconductor device 1 (≈the thickness of the mold portion 1c + the height of the electrode terminal 1d). The above-mentioned base part 25 becomes a form arrange | positioned at the four corners of the square accommodating part 30. FIG.

  By inserting the partition plate 17 into the tray portion 50, the packaging device 100 is prevented from being crushed and twisted by an external force, and the three power semiconductor devices 1 housed in the packaging device 100 are prevented from colliding and being damaged. The side plates 3c and 3c of the packaging device 100 are prevented from opening and the power semiconductor device 1 is prevented from falling off the packaging device 100. The notch 18 of the partition plate 17 makes it easy to grip the power semiconductor device 1 with fingers.

  Next, as shown in FIG. 7, the three power semiconductor devices 1 are accommodated in the accommodating portion 30 of the assembled tray portion 50. The power semiconductor device 1 is turned upside down so that the corners of the four base portions 25 of the tray portion 5 are inserted into the notches 1e at the four corners of the mold portion 1c, and the four corners of the substrate 1a are placed on the four base portions 25. .

  Next, the rear plate reinforcing piece 10 of the tray portion 50 is bent inward, the rear plate 3b is bent vertically upward and overlapped with the rear plate reinforcing piece 10, and then the top plate 12 is bent forward to thereby power semiconductor device. 1 substrate 1a is covered from above. Next, the horizontal lid plates 13c and 13c are bent downward perpendicular to the top plate 12 and overlapped with the horizontal side plates 3c and 3c, and the insertion pieces 14c and 14c are inserted into the slits 4c and 4c.

  Next, the front plate reinforcing pieces 15 and 15 of the lid portion 60 are bent inwardly at right angles to the horizontal lid plates 13c and 13c, and the front plate 3a of the tray portion 50 is bent vertically and vertically. , 15 from the outside. Subsequently, the front lid plate 13a of the lid 60 is bent vertically downward, and the insertion piece 14a is inserted into the slit 4a, so that the three power semiconductor devices 1 are packaged as shown in FIGS. Housed and fixed inside.

  As shown in FIG. 9, in order to prevent the power semiconductor device 1 from being crushed by being dropped during transportation and handling and damaging the power semiconductor device 1, the packaging device 100 is disposed between the electrode terminal 1d of the power semiconductor device 1 and the bottom plate 2. A buffer space 30a is provided.

  When the power semiconductor device 1 is taken out from the packaging device 100, the insertion pieces 14a, 14c, 14c of the lid part 60 are extracted from the slits 4a, 4c, 4c, and the lid part 60 is opened.

  When the packaging device 100 in which the power semiconductor device 1 is packaged is transported, it is preferable that a plurality of packaging devices 100 are packed in the cardboard box 200 and transported as shown in FIGS. When the packaging device 100 is taken out from the cardboard box 200 after transportation, the flap 200a of the cardboard box 200 is opened, and a finger is put on the notch 16 of the packaging device 100 so that the packaging device 100 can be taken out easily.

  When the packaging device 100 is discarded after the power semiconductor device 1 is transported, the packaging device 100 and the partition plate 17 can be developed into a flat plate state. Since it can be reduced to a flat plate, it is easy to dispose (recycle).

  In addition, as a raw material of the packaging apparatus 100, not only corrugated paper but a paperboard, a plastic corrugated board material, etc. may be used. Further, in order to prevent the power semiconductor device 1 from being electrostatically damaged by static electricity in the packaging device 100, it is preferable to impart conductivity by applying a conductive agent to the plate material of the packaging device 100.

  As described above, the packaging device according to the present invention is useful for transportation of power semiconductor devices.

It is a perspective view which shows the external shape of a power semiconductor device. It is a perspective view of the state where the lid which shows an embodiment of a packaging device of a power semiconductor device concerning the present invention was opened. It is a perspective view which shows the middle of the assembly of the packaging apparatus of embodiment. It is an expanded view of the packaging apparatus of embodiment. It is a perspective view which shows the partition plate of embodiment. It is an expanded view of the partition plate of embodiment. It is a perspective view which shows the state which accommodated the power semiconductor device in the packaging apparatus of embodiment. It is a perspective view which shows the state which closed the lid | cover of the packaging apparatus of embodiment. It is sectional drawing which shows the state which accommodated the power semiconductor device in the packaging apparatus of embodiment. It is a perspective view which shows the state which accommodated the packaging apparatus of embodiment in the cardboard box. It is a perspective view which shows the state which accommodated the packaging apparatus of embodiment in the cardboard box, and closed the lid | cover.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Power semiconductor device 1a Board | substrate 1b Mounting hole 1c Mold part 1d Electrode terminal 1e Notch part 2 Bottom plate 3a Front side plate 3b Rear side plate 3c Lateral side plate 4a, 4c Slit 7 Notch part 8 Slit 9 Base plate 10 Back side plate reinforcement piece 12 Top Plate 13a Front lid plate 13c Horizontal lid plate 14a, 14c Insertion piece 15 Front plate reinforcement piece 16 Notch portion 17 Partition plate 18 Notch portion 19 Slit 20 Side leg portion 21, 22 Inner leg portion 23 Bottom reinforcement plate 25 Base portion 30 receiving section 30a buffer space 50 tray section 60 lid section 100 packaging device 200 cardboard box

Claims (7)

A substrate formed in a square plate shape and provided with mounting holes at four corners, a mold portion molded on the substrate in a square thick plate shape and formed with notches at the four corners so as to avoid the mounting holes, and the mold A packaging device for packaging a power semiconductor device having a plurality of electrode terminals led to a predetermined length from the portion to the opposite side of the substrate,
A bottom plate formed in a square shape, a side plate standing from four sides of the bottom plate and having a height higher than the thickness of the power semiconductor device, and an interior are partitioned into a plurality of rectangular accommodating portions that accommodate the power semiconductor device. A partition plate and a base portion provided at the four corners of the rectangular accommodating portion and formed in a rectangular parallelepiped shape having substantially the same height as the side plate, on which the corner portions of the substrate of the power semiconductor device are placed upside down on the base plate on the upper surface And a tray part having an open top,
A lid that covers an upper opening of the tray that houses the power semiconductor device, and that fixes a substrate of the power semiconductor device to the base plate;
A packaging device for a power semiconductor device, comprising:   The packaging device for a power semiconductor device according to claim 1, wherein a buffer space is provided between an electrode terminal of the power semiconductor device accommodated in the packaging device and a bottom plate of the tray portion.   The partition plate is inserted into a slit between the two base portions of the tray portion to prevent crushing and twisting of the packaging device due to external force, and a plurality of power semiconductor devices housed in the packaging device collide with each other and are damaged. 2. The packaging device for a power semiconductor device according to claim 1, wherein the power semiconductor device is prevented from falling off from the packaging device by opening a lateral side plate of the tray portion.   2. The cover according to claim 1, wherein the lid includes an insertion piece that is inserted into a slit formed in a bent portion of the bottom plate and the side plate of the tray portion in a state of covering the upper opening of the tray portion. A packaging device for the power semiconductor device as described.   The packaging apparatus for a power semiconductor device according to claim 1, wherein the packaging apparatus is formed by bending a plate material.   2. The packaging device for a power semiconductor device according to claim 1, wherein the power semiconductor device is imparted with conductivity to a plate material of the packaging device in order to prevent electrostatic breakdown due to static electricity.   The power semiconductor device according to claim 1, wherein the packaging device is provided with a notch for hooking a finger so that the packaging device housed in the box for transportation can be easily taken out from the box. Packaging equipment.

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