JP3108184U - Electronic card storage unit - Google Patents

Abstract

To improve the fixing property of an electronic card storage unit.
A storage unit includes a plastic frame and first and second metal covers, and both metal covers include a plurality of curved pieces extending from edges. Yes. The plastic frame and the metal cover are formed separately, and the metal cover is embedded in the upper and lower surfaces of the plastic frame.
[Selection] Figure 1a

Description

  This invention relates to an electronic card storage unit.

  Electronic cards such as modern cards, local area network cards (LAN cards), and memory cards are widely used and are being developed for miniaturization. Common standard specifications for electronic cards include, for example, PCMCIA cards, compact flash (registered trademark) cards (CF cards), secure digital cards, and the like.

  In addition, several new standard specifications are still being developed. Although the contents accompanying these specifications are somewhat different, the storage units for these electronic cards are basically the same. Such a storage unit has a case for encapsulating a printed circuit board (PCB). The outer surface of the case is electrically conductive and has a ground terminal. After the electronic card is inserted into the slot of the electronic device, the ground terminal is connected to the system reference of the electronic device and grounded.

  Electronic card storage units need to provide sufficient mechanical strength and electrical performance and must meet certain required standards. Furthermore, such electronic cards need to be manufactured in large quantities and at low prices. In the conventional storage process, the printed circuit board is first clamped by a plastic frame, and then the upper metal cover and the lower cover are riveted by a clamp.

  Thereafter, the printed circuit board and the plastic frame are encapsulated. Since the metal cover and the plastic frame of the storage unit are not firmly connected, the metal cover is easily loosened or dropped off when an external force or a strain force is applied. Furthermore, the storage unit formed by riveting has poor mechanical strength, and the metal cover is deformed.

  Other processes for bonding the metal cover and the plastic frame include a viscous bonding process or an injection molding process. When these processes are used, when an external force or a strain force is applied to the electronic card, the connecting portion between the plastic frame and the metal cover is easily separated due to insufficient force. Especially when an injection molding process is performed and the metal cover is joined with the plastic frame, the necessary molds must be prepared in advance.

Therefore, the cost is very high. The metal cover and mold are then precisely aligned with each other. A plastic material is then poured into the mold and bonded to the metal cover. Such an injection molding process is time consuming, labor intensive and costly. The injection molding process is disclosed in, for example, U.S. Pat. Nos. 5,379,587, 5,475,919, 5,490,891 and Taiwan Patents 482305, 471673, 549688.
US Pat. No. 5,379,587 US Pat. No. 5,475,919 US Patent No. 5,490,891 Taiwan Patent No. 482305 Taiwan Patent No. 471673 Taiwan Patent No. 549688

  An object of the present invention is to provide a storage unit for an electronic card which is excellent in fixing property between a plastic frame and a metal cover.

  The electronic card storage unit according to the first technical idea of the present invention has a plastic frame and first and second metal covers, and the first metal cover has a plurality of first curved pieces extending from the edges. have. The second metal cover also has a plurality of second curved pieces extending from the edge. The first metal cover, the plastic frame and the second metal cover are formed separately. The first and second metal covers are embedded in the upper and lower surfaces of the plastic frame to form a storage unit.

  In one embodiment, ultrasonic welding work or high-frequency welding work is performed in the first and second burying work.

  In another embodiment, the plastic frame has a retaining structure located near its opening.

  In another embodiment, the holding structure is a horizontal bar connected to the side of the plastic frame.

  In another embodiment, the plastic frame has a central receiving portion for receiving the circuit board, and the circuit board is fixed to the receiving portion via a holding structure.

  In another embodiment, the plastic frame is square.

  In another embodiment, the plastic frame has a central receiving portion for receiving the circuit board.

  In another embodiment, each side of the plastic frame has at least one recess that enhances the engagement between the plastic frame and the metal cover.

  In another embodiment, each of the first and second metal covers has a plurality of curved pieces extending from the edge, and each curved piece has an opening.

  In another embodiment, the curved pieces of the first and second metal covers are arranged in a staggered manner.

  An electronic card storage unit according to the second technical idea of the present invention includes a plastic frame having a block disposed on an inner end face thereof, and a first frame having a plurality of first curved pieces extending from the edge. And a first bent piece having an opening for receiving a block on one side of the plastic frame, and a second metal cover extending from the edge. It has a piece of music. The opening of the first metal cover receives the block of the plastic frame, fixes the first metal cover on one surface of the plastic frame, and the second metal cover is embedded in the other surface of the plastic frame to store the unit. Form.

  According to the ultrasonic welding technique or the high-frequency welding technique, when the metal cover is fixed on the plastic frame, the metal cover and the plastic frame are separately formed. The storage unit provided by this device is cheaper and less time consuming than conventional injection molding processes. Since the fixing property is increased, the problem of loosening of the storage unit, insufficient mechanical performance and / or falling off of the metal cover can be avoided.

  The storage unit of this device is highly fixed because of the special structure of the metal cover and the use of ultrasonic welding technology or high-frequency welding technology. In addition, since the mold required in the prior art is not required, the cost is greatly reduced.

  FIG. 1a shows an electronic card storage unit according to the first embodiment of the present invention in an exploded state. The storage unit is formed by the ultrasonic welding technique or the high frequency welding technique, and the two metal covers are fixed to the plastic frame. In particular, the metal cover and the plastic frame are molded separately. The storage unit includes a first metal cover 11, a plastic frame 12, a circuit board 13, and a second metal cover 14, and the circuit board 13 is preferably a printed circuit board.

  The first metal cover 11 is disposed on the upper surface of the plastic frame 12, and the edge thereof has a plurality of curved pieces 111 and 112. These bent pieces 111 and 112 are coupled to the plastic frame 12 by ultrasonic welding technology or pressure compression technology.

  Each curved piece 111 has a hole 1111 in the center. By using the ultrasonic welding technique, the molten plastic material of the plastic frame 12 penetrates through the holes 1111 of the bent piece 111, and then the first metal cover 11 is bonded to the plastic frame 12. Each bent piece 112 also has a hole 1121 at the center and two notches 1122 at the side.

  Similarly, by using the ultrasonic welding technique, the molten plastic material of the plastic frame 12 permeates through the holes 1121 and the notches 1122, thereby improving the fixing property between the first metal cover 11 and the plastic frame 12. Since the fixing properties are increased, loosening of the storage unit, insufficient mechanical performance and / or falling off of the metal cover are avoided.

  The second metal cover 14 is disposed on the bottom surface of the plastic frame 12, and has a plurality of curved pieces 141 and 142 on the edge thereof. These bent pieces 141 and 142 are joined to the plastic frame 12 by ultrasonic welding technology or heat compression technology. Since the music pieces 141 and 142 have the same structure as the music pieces 111 and 112, description thereof will be omitted.

  FIG. 1b shows an assembled state of the upper and lower metal covers of FIG. 1a. The first metal cover 11 and the second metal cover 14 are engaged with each other. The bent pieces 111 of the metal cover 11 and the bent pieces 141 of the metal cover 14 are arranged in a staggered manner, and the bent pieces 112 of the metal cover 11 and the bent pieces 142 of the metal cover 14 are also arranged in a staggered manner.

  In such a structure, the height of the electronic card is shortened and at the same time undesirable electromagnetic interference (EMI) is prevented. The metal cover 11 and the metal cover 14 are preferably made of metal or stainless steel.

  In FIG. 1 a, the plastic frame 12 has a central receiving portion 121 and a holding structure 122, and the holding structure 122 is a horizontal bar connected to a side portion of the plastic frame 12, and is an opening of the plastic frame 12. Near. The receiving unit 121 is used to receive the connector 131 connected to the circuit board 13 and the electronic device. The circuit board 13 and the connector 131 are fixed in the central receiving portion 121 via the holding structure 122.

  Further, as shown in FIGS. 1 a, 1 c, and 1 d, the upper and lower surfaces of the plastic frame 12 have recesses 123 and 124 that enhance the engagement between the plastic frame 12 and the metal covers 11 and 14.

  FIG. 1e shows an assembled state of the electronic card storage unit of FIG. 1a. By using the ultrasonic welding technique, the metal covers 11 and 14 are fixed on the plastic frame 12 to form the electronic card storage unit 10.

  Another embodiment of the electronic card is shown in FIG. In this embodiment, the plastic frame 12 and the circuit board 13 included therein are the same as those shown in FIG. The hole 1121 of the bent piece 112 of FIG. Similarly, the hole 1421 of the curved piece 142 of FIG. 1 a has been replaced with a notch 1423. If the metal covers 11 and 14 are fixed on the plastic frame 12, the structures of the bent pieces 111 and 112 are manufactured as necessary.

  FIG. 3 shows an electronic card storage unit according to a third embodiment of the present invention in an exploded state. The memory card storage unit includes a first metal cover 21, a plastic frame 22, a circuit board 23, and a second metal cover. 24. The metal cover 21 has a plurality of first curved pieces 211 extending from the edge, and the curved pieces 211 have an opening 2111 for receiving a block 221 disposed on the inner end face of the plastic frame 22. Yes.

  Concave portions 222 are provided on the upper and lower surfaces of the plastic frame 22, and the first metal cover 21 is engaged with the plastic frame on the upper surface of the plastic frame 22. The second metal cover 24 has a plurality of second curved pieces 241 extending from the edge, and is embedded in the bottom surface of the plastic frame 22 by ultrasonic welding work or high-frequency welding work. As a result, the molten plastic material of the plastic frame 22 permeates through the hole 2411 of the bent piece 241 and enhances the fixing property between the metal cover 24 and the plastic frame 22. Thus, the required electronic card is formed.

  FIG. 4 shows a storage unit for a wireless network card according to another embodiment of the present invention in an exploded state. The storage unit has a first metal cover 31, a plastic frame 32, and a second metal cover 33. The bent pieces and openings of the metal covers 31 and 33 are the same as those shown in FIGS. 1 and 2 except that the plastic frame 32 is square.

  In the embodiment shown in FIG. 5, the memory card storage unit has a first metal cover 51, a plastic frame 52, and a second metal cover 53. The metal cover 51 has a plurality of first curved pieces 511 extending from the edge thereof, and the width of the curved pieces 511 is the same as or slightly wider than the concave portion (not shown) on the bottom surface of the plastic frame 52. And the plastic frame 52 engages tightly.

  The second metal cover 53 has a plurality of second curved pieces 531 extending from the edge thereof, and is embedded in the upper surface of the plastic frame 52 by ultrasonic welding work or high-frequency welding work. 52 of molten plastic material penetrates therethrough and enhances the fixation between the metal cover 53 and the plastic frame 52. Thus, the required electronic card storage unit is formed. On the other hand, ultrasonic welding work or high-frequency welding work is performed to fix the metal cover 51 in the plastic frame 52.

  FIG. 6 shows a special example of a memory card. The memory card can be purchased from Power Quotient International of Taiwan, and the product name is Intelligent Stick.

  The memory card storage unit of this embodiment has a first metal cover, a plastic frame, and a second metal cover. The bent piece and the opening of the metal cover are the same as those shown in FIGS. 1 and 2 except that the plastic frame is square and the connector 132 extends outward from the edge of the plastic frame. By using the storage unit of this invention, problems in the prior art are overcome.

  The storage unit of this device can be applied to modern cards, memory cards and wireless network cards.

It is an exploded view of the electronic card storage unit of the first embodiment of the present invention. 1b is an assembled view of the top and bottom metal covers of FIG. It is a top view of the plastic frame used for the storage unit of FIG. It is a bottom view similarly. 1b is an assembly view of the storage unit of FIG. It is an exploded view of the storage unit of the second embodiment of the present invention. It is an exploded view of the storage unit of the 3rd example of this device. It is an exploded view of the storage unit of 4th Example of this invention. It is an exploded view of the storage unit of 5th Example of this invention. It is a figure which shows the storage unit of the memory card of this device.

Explanation of symbols

10: Storage unit 11: Metal cover 12: Plastic frame 13: Circuit board 14: Metal cover 111, 112: Curved piece

Claims (4)

  A plastic frame; a first metal cover having a plurality of first curved pieces extending from the edge; and a second metal cover having a plurality of second curved pieces extending from the edge. The first metal cover, the plastic frame, and the second metal cover are formed separately, and the first and second metal covers are embedded in the upper and lower surfaces of the plastic frame to form a storage unit. An electronic card storage unit characterized by that.   The storage unit according to claim 1, wherein the plastic frame has a holding structure disposed near the opening and has a central receiving portion for receiving the circuit board.   The first and second surfaces of the plastic frame each have at least one recess for enhancing the engagement between the plastic frame and the first and second metal covers. The storage unit described in.   A first having a plastic frame with a block disposed on the inner end face and a plurality of first bends having an opening extending from the edge and receiving the block in one side of the plastic frame; And a second metal cover having a plurality of second bent pieces extending from the edge, and the opening of the first metal cover receives the block of the plastic frame to receive the first metal cover. 1. An electronic card storage unit, wherein a first metal cover is fixed to a side portion of a plastic frame, and a second metal cover is embedded in the other side portion of the plastic frame by an embedding operation to form a storage unit.

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