KR200209724Y1 - multi-slots type multi-media card player having a card changer function - Google Patents

Abstract

The present invention discloses a multimedia card player having a changer function with multiple slots. The multimedia card player is a printed circuit board equipped with a front panel unit having a plurality of slots for inserting a multimedia card, and a circuit which is separately connected to the multimedia card to read data recorded on the multimedia card and provide it as a necessary signal for a vehicle audio system. It has a structure that can be combined with the set portion, the front panel portion to embed the printed circuit board set portion and the terminal socket of the signal line of the printed circuit board set portion is exposed to the outside. In addition, the cover is rotatably coupled to one side of the front panel portion, and when closed, the cover has a structure having a structure that stably supports the multimedia card inserted in the slot to cover the front panel portion. The slot of the front panel portion, when the multimedia card is inserted, the center portion of one corner is exposed to the outside of the slot, so that the side shape is bowed so that the user can grasp the multimedia card inserted into the slot by hand and pull it out. It is round.

Description

Multi-slots type multi-media card player having a card changer function}

The present invention relates to a multi-media card (MMC) player with a changer function, and more particularly, it is possible to selectively play a desired multimedia card by simultaneously inserting multiple multimedia cards, The present invention relates to a multimedia card player having a changer function by having multiple slots having a stable structure that does not deviate or become unstable.

Recently, as a next generation of a storage medium using an optical recording method such as a CD-ROM, a data recording medium manufactured in a card form by embedding a flash memory has been in the spotlight. This memory card is called a multimedia card (MMC) or a smart card (Smart card). 2 shows an external shape of a multimedia card 18 that is generally used.

In order to use the multimedia card 18 as a sound source, a player is required. A representative example of a multimedia card player is a digital data player such as an MP3 player. MP3 player is a self-contained player. That is, it decodes the sound source data recorded on the multimedia card and finally outputs the playback sound through the earphone jack.

Recently, however, a system using a multimedia card in combination with an audio system of a vehicle has been introduced. For reference, in order to use a multimedia card as a sound source of an audio system of a vehicle, a multimedia card player is required. Leveraging the resources of the car's audio system, the player in this case can simplify its configuration rather than an MP3 player. That is, the player does not need to provide resources such as an analog playback circuit or a speaker provided in the vehicle audio system, and the digital sound source data recorded in the multimedia card is made into an audio signal required by the vehicle audio system. You can have a configuration that can give. Since the present invention relates to the mechanical configuration of such a multimedia card player for a vehicle, the circuit discussion of the player will be omitted here.

1 shows the appearance of a conventional multimedia card player. The multimedia card player has a structure in which a knob ejector is provided on the side of the case 14 and one insertion slot 12 is provided in the front card inserting portion 10.

As can be seen in the figure, the conventional multimedia card player is provided with only one insertion slot 12 is a structure that can be used by simply inserting one multimedia card. Therefore, this player is inconvenient to repeatedly insert and remove the multimedia card to the player in order to play a plurality of multimedia cards.

This player also does not provide a separate means for preventing the multimedia card inserted in the insertion slot 12 from being separated out. Therefore, when the player is severely impacted from the outside, the multimedia card inserted into the insertion slot 12 may be separated from the insertion slot 12 to be taken out or the terminal connection between the multimedia card and the player may be poor. . In particular, when the player is used in conjunction with an audio system installed in a vehicle, large and small vibrations generated from the vehicle are always generated. Therefore, it would be difficult to use the player for a vehicle unless a separate means for preventing the detachment of the multimedia card is provided.

In addition, since the knob ejector 16 must be used when removing the multimedia card from the player, there are limitations in use or installation in that the multimedia card must be removed by using both hands or the player must be fixed to a support.

In order to solve the conventional problems as described above, the present invention has a card changer function that can selectively play a desired multimedia card by inserting multiple multimedia cards at the same time, convenient insertion and removal of the multimedia card and the outside of the multimedia card An object of the present invention is to provide a multi-slot multimedia card player having a stable structure in which the multimedia card is not detached or the contact is unstable in the impact of the present invention.

1 is a perspective view showing the appearance of a conventional single slot type multimedia card player.

2A and 2B are front and side views showing the appearance of a general multimedia card.

3 is an external perspective view of a multi-slot multimedia card player according to the present invention.

4 is an exploded view of the multi-slot multimedia card player according to the present invention.

5 is a block diagram of the overall configuration of a car audio system using a multimedia card player.

<Explanation of symbols for main parts of the drawings>

20: front panel 22: license plate

30: insertion slot 40: cover

50: rib guard 60A: upper case

60B: Lower case 62A, 62B, 62C: Screw

66: substrate support 68: substrate support

70: printed circuit board set portion 72: printed circuit board

74: multimedia card connector 76: light emitting element

78: output terminal pin 80: first non-printed circuit board

82: circuit board 84: connector

86: connector 90: second non-printed circuit board

92: circuit board 94: connector

96: termination socket 100: multimedia card

110: multimedia card player 120: car audio system

130: speaker

In order to achieve the above object, the present invention is a front panel unit having a plurality of multimedia card insertion slots; A printed circuit board set unit connected to the multimedia card separately and provided with circuits for reading data recorded on the multimedia card and providing the signals necessary for a vehicle audio system; It has a structure that can be coupled to the front panel portion and the built-in printed circuit board set portion having a case which is installed so that the terminal socket of the signal line of the printed circuit board set portion is exposed to the outside. Provides a multi-slot multimedia card player.

Preferably, the multimedia card player further includes a cover that covers the front panel and supports the multimedia card inserted in the slot so as to stably connect with the connection terminal of the printed circuit board set. The cover has a cover plate having a width that can cover the front of the front panel portion and a latch beam protruding across a central portion of the cover plate. One edge of the cover plate is rotatably coupled to one edge of the front panel portion, and has a structure that stably supports the multimedia card inserted into the slot when the lid is closed.

Further, the slot of the front panel portion, when the multimedia card is inserted, the center portion of one corner is exposed to the outside of the slot, so that the side shape so that the user can grasp the multimedia card inserted in the slot by hand by hand It is round in a bow shape.

Other features and advantages of the present invention will become more apparent with reference to the following detailed description and accompanying drawings that illustrate the features of various embodiments of the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail with respect to a preferred embodiment of the present invention.

3 shows the appearance of a multi-slot multimedia card player 110 according to the present invention, and FIG. 4 is an exploded view of the multi-slot multimedia card player 110 according to the present invention.

In the external configuration of the multimedia card player 110 of FIG. 3, the player 110 is coupled to the front panel unit 20 and the front panel unit 20 and has a printed circuit having a circuit for signal processing therein. The case 60A, 60B has a structure in which the board set parts 70, 80, and 90 can be embedded, and the terminal sockets 96 of the signal line of the printed circuit board set part are exposed to the outside.

The front panel unit 20 has a plurality of slots for inserting a multimedia card. When the slot 30 is inserted into the multimedia card 18 as shown, the center portion of one corner is exposed to the outside of the slot, the user grasps the multimedia card 18 inserted into the slot 30 by hand Its side shape has a bow-shaped shape so that it can be pulled out. In addition, a plurality of holes 24 are formed in the front panel portion 20 in a row at an adjacent position of each of the slots 30, for example, as shown. On the plurality of holes 24, a license plate 22 for attaching a serial number to each of the plurality of slots 30 is attached.

The cases 60A and 60B are composed of an upper case 60A and a lower case 60B in consideration of assemblability. The upper case 60A and the lower case 60B are integrated by screwing using female / male screws 62A, 62B, and 62C. At the bottom of the lower case 60B, a substrate supporting beam 66 for stably supporting each of the plurality of printed circuit boards 72 is provided. In addition, another substrate support beam 68 is further installed on the bottom and sidewalls of the lower case 60B to stably support the auxiliary printed circuit boards 80 and 90. Further, the upper case 60A is further formed with a screw groove 69 for screwing with a specific support (not shown) in the space where the regenerator 110 is to be installed.

The front panel portion 20 and the cases 60A and 60B are integrally assembled through the fastening protrusions 26A and 26B and the fastening holes 64A and 64B formed in each of them.

The printed circuit board set which is connected to the multimedia card 18 separately in the cases 60A and 60B, reads the data recorded in the multimedia card, processes it as a signal necessary for the vehicle audio system, and outputs the signal to the terminal socket 96. The parts 70, 80, and 90 are built in. The printed circuit board set unit may be electrically connected to a plurality of printed circuit boards 70 arranged in a one-to-one correspondence in each slot 30 and output terminals of each of the plurality of printed circuit boards 72. 96) a sub printed circuit board (80, 90) for connecting the signal line.

Each printed circuit board 72 has a substrate 79, and an output terminal pin 78 provided on the substrate 79, and the portion indicated by the reference number 78 indicates a welded portion opposite to the tension terminal pin. Since the shape of the terminal pin is well known to those skilled in the art, the terminal pin itself is not shown here), and the multimedia card 18 inserted through the slot 30 is stored to electrically connect the multimedia card to the output terminal pin 78. It is provided with a multimedia card connector 74 for connecting. Furthermore, each of the printed circuit boards 72 further includes a light emitting element 76 that emits light in response to a power supply, such as a light emitting diode, and the light emitting elements 76 are formed in a line on the front panel portion 20. It is installed at a position corresponding to the hole so as to emit light to the outside through the hole (24). When a specific light emitting device emits light, the number of the license plate 22 corresponding to the position of the light emitting device is brightly lit, indicating which multimedia slot is currently inserted into the slot.

The first non-printed circuit board 80 is provided in parallel with the substrate 82, a plurality of connectors 84 for connecting to the output terminal pins in parallel with each other, and any of the plurality of connectors 84. Another connector 86 is provided for selectively electrical connection with one, and a plurality of fastening holes (eg, 88A) are formed in a row at upper and lower portions of the plurality of connectors 84. The first non-printed circuit board 80 is coupled to the protrusions (eg, 73A and 73B) formed in each of the plurality of printed circuit boards 72 through the plurality of fastening holes.

The second non-printed circuit board 90 is electrically connected to the connector 94, which is electrically connected to the substrate 92 and the connector 86 of the first non-printed circuit board 80, and the connector 94. A termination socket 96 having a connection.

Meanwhile, the multimedia card 18 inserted into the slot 30 prevents problems such as the multimedia card being separated from the slot 30 or the stable connection with the connector 74 despite the external vibration or shock. To this end, the regenerator 110 further includes a cover 40. That is, the cover 40 covers the front panel 20 to support the multimedia card 18 inserted into the slot 30 to be stably connected to the contacts of the printed circuit board 72. The cover 40 includes a cover plate 42 having a width that can cover the front surface of the front panel unit 20, and a latch beam 50 protruding across the center portion of the cover plate 42. And, one side edge of the cover plate 42 is rotatably coupled to one side edge of the front panel portion 20 to open and close the cover 40, the latch beam 50 when the cover 40 is closed ) Is in contact with the multimedia card 18 is inserted into the slot (30) has a structure that supports it stably. Thus, the multimedia card 18 is supported by the latch 50 to maintain a stable connection with the connector 74.

5 is a block diagram of an overall configuration of a car audio system using the multimedia card player 110. The role of the player 110 of the present invention is to form an electrical connection between the connector 74 and the multimedia card inserted into the connector 74 of the printed circuit board 72 through the slot 30 to play the multimedia card 18. ) Is transmitted to the end socket 96 through the output terminal pin 78 and the connectors 82, 86 and 94 of the unprinted circuit boards 80 and 90. As a result, the data recorded in the multimedia card 18 is read through the card player 110 of the present invention and transmitted to the car audio system 120 to process the speaker 130 installed in the vehicle through signal processing for audio reproduction. Is played through.

As can be seen from the above description, according to the multimedia card player according to the present invention, the following effects are expected.

First, the multimedia card player of the present invention allows a user to select and play a desired card by simultaneously inserting several multimedia cards into one player. Thus, the user can select a wide range of sound source data.

Second, the slots on the front panel give a round shape so that the multimedia card can be pulled out by hand without using a separate ejector or other tool.

Third, by adopting a cover covering the front panel, the multimedia card is not detached from the slot or the contact is unstable due to the impact, so that the playback sound can be stably enjoyed.

Although described above with reference to a preferred embodiment of the present invention, those skilled in the art will be variously modified and changed within the scope of the present invention without departing from the spirit and scope of the present invention described in the claims You can. Accordingly, all changes that come within the meaning or range of equivalency of the claims are to be embraced within their scope.

Claims (8)

A front panel unit having a plurality of multimedia card insertion slots; A printed circuit board set unit connected to the multimedia card separately and provided with circuits for reading data recorded on the multimedia card and providing the signals necessary for a vehicle audio system; It has a structure that can be coupled to the front panel portion and the built-in printed circuit board set portion having a case which is installed so that the terminal socket of the signal line of the printed circuit board set portion is exposed to the outside. Multislot multimedia card player. The multi-slot having a changer function according to claim 1, further comprising a cover which covers the front panel and supports the multimedia card inserted in the slot so as to be stably connected to the connection terminal of the printed circuit board set. Multimedia card player. According to claim 2, The cover has a cover plate having a width that can cover the front of the front panel portion and the latch beam protruding across the center portion of the cover plate, One side edge of the cover plate is rotatably coupled to one side edge of the front panel portion, and when the cover is closed, the latch is in contact with the multimedia card inserted into the slot to stably support the structure. Multi-slot multimedia card player with a changer function. The slot of claim 1, wherein the slot of the front panel portion is exposed to the outside of the slot when the multimedia card is inserted, so that the user can grasp the multimedia card inserted into the slot by hand and pull it out. A multi-slot multimedia card player with a changer function, characterized in that its side shape is bow-shaped. The printed circuit board of claim 1, wherein the printed circuit board set unit comprises: a plurality of printed circuit boards disposed in the slot in a one-to-one correspondence relationship; And a non-printed circuit board electrically connected to output terminals of each of the plurality of printed circuit boards and connecting signal lines to the end sockets. Each of the plurality of printed circuit boards includes a substrate, an output terminal pin installed on the substrate, and a multimedia card connector for receiving the multimedia card inserted through the slot and electrically connecting the multimedia card to the output terminal pin. A multi-slot multimedia card player having a changer function. The light emitting device of claim 5, wherein holes are formed at adjacent positions of the slots in the front panel, and each of the plurality of printed circuit boards further includes a light emitting device emitting light in response to a power supply. The multi-slot multimedia card player having a changer function is installed in a position corresponding to the hole so as to emit light to the outside through the hole. 7. The multi-slot multimedia with a changer function according to claim 6, wherein the front panel portion further includes a license plate, and the license plate is attached along a line in which the hole is formed to give a serial number of each of the holes. Card player. The multi-slot multimedia card player having a changer function according to claim 1, wherein the case further comprises a screw groove for screwing into a specific support of a space for installing the player.