JP6442576B2 - Board unit - Google Patents

Description

  The present invention relates to a substrate unit mechanism, and more particularly to a substrate unit mechanism that prevents damage to a substrate and the like.

  Some electronic devices include a printed circuit board for controlling functions of the electronic device.

  For example, a portable electronic device such as a small printer included in the electronic device is more likely to be subjected to an external force such as dropping or colliding with an object than other electronic devices that are installed and used in a stable place. When the impact is applied, when there are a plurality of substrates and power supply units or substrates, problems such as disconnection of connectors and cables between the substrates and breakage of the substrates occur.

  Conventionally, in order to solve the above problem, means such as fixing a relatively large part such as a capacitor by bonding, fixing a connector or a cable with tape, and the like have been taken. Japanese Patent Laid-Open No. 2003-283058 absorbs external impact by forming a loop portion in a flexible free connecting portion for connecting a substrate and an electronic component, and changing the diameter and shape of the loop portion. An invention for preventing breakage or the like is disclosed.

JP 2003-283058 A

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a board unit mechanism that prevents damage to the board and disconnection of a connector caused by a drop impact in an electronic device.

An embodiment of the present invention includes a first substrate, a second substrate, and a substrate holder in which the first substrate is attached to one side and the second substrate is attached to the side opposite to the one side. a is a periphery formed frame-shaped substrate holder, and wherein disposed in the substrate holder, the external connection pin which is provided on at least one of said first substrate and said second substrate The substrate holder has a holding portion that holds the first substrate and the second substrate, and a window into which the external connection terminal fits is formed on a peripheral surface of the substrate holder. The substrate unit.

  According to the board unit mechanism of the present invention, it is possible to prevent damage to the board in the electronic device and disconnection of the connector and the cable even when the electronic device receives an external force such as a collision caused by dropping.

1 is a schematic side view of a thermal printer 1 according to Embodiment 1 of the present invention. 2 is an exploded perspective view of the substrate unit 26. FIG. FIG. 3 is a perspective view when the components of the board unit 26 are assembled. FIG. 3 is a perspective view of the printer body 10 when the opening / closing lid 11 side is removed. 2 is a perspective view when the substrate unit 26 is attached to the printer main body 10. FIG. It is a perspective view of the substrate holder 50 of the substrate unit 26 according to Embodiment 2 of the present invention. 3 is a perspective view when each substrate is attached to the substrate holder 50. FIG. FIG. 1 is a sectional view of the thermal printer 40 according to the second embodiment taken along line AA in FIG. FIG. 2 is a cross-sectional view taken along line AA of FIG. 1 when a substrate unit 41 is attached to the thermal printer 40.

  A first embodiment will be described with reference to FIGS. In the first embodiment, among printers that are electronic devices and perform printing by heat by pressing and sandwiching a print medium between a thermal head and a platen roller, a platen roller is provided on the cover of the printer body, and the cover of the printer body A portable printer in which a thermal head and a platen roller provided in the main body are opposed to each other when is in the closed position will be described as an example.

  1 is a schematic side view of a thermal printer 1 according to a first embodiment of the present invention. The thermal printer 1 includes a printer housing 2, a supply unit 3, a detection unit 4, a printing unit 5, a peeling unit 6, and an electric control unit 7.

  The label continuum L as a printing medium has a mount 15 and a label 16, and a plurality of labels 16 having a predetermined length are temporarily attached to the continuous long strip-shaped mount 15 at intervals. .

  The printer housing 2 includes a printer body 10, an opening / closing lid 11, and a hinge 12. The printer main body 10 is formed in a box shape with an upper portion opened by resin, and can accommodate each part such as the supply unit 3 and the detection unit 4 therein. The opening / closing lid 11 is a plate-shaped resin, and one end of the opening / closing lid 11 is connected to the printer main body 10 by a hinge 12. The hinge 12 serves as a fulcrum and can be opened and closed with respect to the printer main body 10. An opening is provided between the printer main body 10 and the other end of the opening / closing lid 11, and this opening serves as a discharge port 13 for discharging the label 16 peeled off at the peeling portion 6 described later. The opening / closing lid 11 between the hinge 12 and the discharge port 13 is also provided with an opening, which becomes a mount discharge port 14 for discharging the mount 15 from which the label 16 has been peeled off at the peeling portion 6.

  The supply unit 3 rotates the label continuous body L by causing the circumferential surface of the roll-shaped label continuous body L to contact the support member 17 which is a support plate having a plurality of arc-shaped surfaces. The belt-shaped label continuous body L is supplied toward the detection unit 4.

  The detection unit 4 includes a light emitting unit 18 and a light receiving unit 19. The light emitting unit 18 and the light receiving unit 19 are provided between the supply unit 3 and the printing unit 5 at a position where the label continuous body L is sandwiched between them. On the back surface of the label continuum L, marks (not shown) that reflect light emitted from the light emitting unit 18 are printed at equal intervals, and the detection unit 4 is connected to the label continuum L from the light emitting unit 18. The position and the transfer amount of the label continuum L are detected by causing the light receiving unit 19 to receive the reflected light from the mark.

  The printing unit 5 includes a thermal head 20, a platen roller 21, and a platen roller fixing member 22. The thermal head 20 is attached and fixed to the printer main body 10, and the platen roller 21 is rotatably attached to the platen roller fixing member 22 fixed to the opening / closing lid 11, and when the opening / closing lid 11 is in a closed state, The thermal head 20 and the platen roller 21 are arranged to face each other. The thermal head 20 and the platen roller 21 arranged to face each other sandwich the label continuous body L with a predetermined pressing force, print on the label continuous body L, and transfer the label continuous body L to the peeling unit 6. Yes.

  The peeling unit 6 includes a peeling plate 23, a tension roller 24, and a tension roller fixing member 25. The peeling plate 23 is a metal plate having an acute-angled tip, and is disposed parallel to the axial direction of the platen roller 21 by the platen roller fixing member 22 and on the upstream side of the platen roller 21. The mount 15 of the label continuum L on which printing has been performed is turned on the release plate 23. The tension roller 24 is rotatably attached to a tension roller fixing member 25 fixed to the opening / closing lid 11. When the opening / closing lid 11 is closed, the platen roller 21 is opposite to the thermal head 20. It comes to arrange. The redirected mount 15 is sandwiched between the platen roller 21 and the tension roller 24, and is transferred to the mount discharge port 14 while being applied with tension at the peeling plate 23. Further, the discharge port 13 is provided with a peeling sensor (not shown), which detects the label 16 peeled from the mount 15 by the peeling portion 6 and detects that the label 16 has been removed from the peeling portion 6. Repeat the operation of printing a label and stopping once.

  The electric control unit 7 includes a substrate unit 26, a first substrate 27, a second substrate 28, and a battery 29. The substrate unit 26 includes a first substrate 27 and a second substrate 28, and is attached to the printer main body 10. The mechanism, attachment method, and the like will be described later. The battery 29 supplies power for operating each unit of the thermal printer 1 to each unit.

  The thermal printer 1 according to the first embodiment has the above-described configuration, and the label continuum L is supplied by the supply unit 3, and the supplied label continuum L passes through the detection unit 4 to the printing unit 5. Be transported. In the printing unit 5, the label continuum L is sandwiched between the thermal head 20 and the platen roller 21, and printing is performed at a predetermined position. The mount 15 of the label continuum L on which printing has been performed is turned by the release plate 23, is sandwiched by the tension roller fixing member 25, is given tension, and the label 16 is peeled from the mount 15. The peeled label 16 is discharged from the discharge port 13, and the mount 15 after the label 16 is peeled is discharged from the mount discharge port 14.

  Next, the board unit 26 and attachment of the board unit 26 to the printer main body 10 will be described in more detail with reference to FIGS. FIG. 2 is an exploded perspective view of the board unit 26. The substrate unit 26 includes a first substrate 27, a second substrate 28, a substrate holder 30, and screws 34.

The first substrate 27 has a CPU, ROM, RAM, etc. (not shown) on a substantially rectangular substrate, and controls the thermal printer 1. Moreover, it has the connection port 59 (refer FIG. 6) for charging the battery 29 from an external terminal.

  The second substrate 28 has a RAM or the like on a substrate that is approximately the same size as the first substrate 27, and exchanges information from an external connection terminal such as a USB via the external device connection port 60.

  The substrate holder 30 includes a base 31, side plates 32, and convex portions 33. The base 31 is a rectangular plate having substantially the same size as the first substrate 27 and the second substrate 28, and the first screw hole 31A and the second screw into which two screws 34 are screwed are provided on the front and rear surfaces thereof. It has a hole 31B. The pair of side plates 32 are attached along the side surface of the base 31. A pair of convex part 33 is each attached to the opposite side of the surface where the base | substrate 31 of the side plate 32 was attached.

  FIG. 3 is a perspective view when the board unit 26 is assembled. The first substrate 27 is attached to the substrate holder 30 by screwing the screw 34 into the first screw hole 31A via the screw penetration window 27A. The second substrate 28 is attached to the substrate holder 30 by screwing the screw 34 into the second screw hole 31B from the opposite side of the first substrate 27 through the screw penetration window 28A. 28 is unitized.

  FIG. 4 is a schematic perspective view when the opening / closing lid 11 side of the printer main body 10 is removed. The printer main body 10 has a first slide groove 10A and a second slide groove 10B as a pair of slide grooves opposed to each other on the inner side. The first slide groove 10 </ b> A and the second slide groove 10 </ b> B are provided along the downstream side wall of the printer main body 10, and the convex portion 33 of the substrate holder 30 is fitted therein.

  FIG. 5 is a schematic perspective view when the substrate unit 26 is attached to the printer main body 10. The board unit 26 is attached to the printer body 10 by fitting the lower part of the convex portion 33 of the board unit 26 into the first slide groove 10A and the second slide groove 10B, respectively, so that the board unit 26 is placed inward of the printer body 10. The board unit 26 is attached to the printer main body 10 by sliding it toward the printer body 10. For removal, the substrate unit 26 is slid outward relative to the printer body 10.

  As described above, according to the first embodiment, the first substrate 27 and the second substrate 28 are attached to the substrate holder 30 and unitized, so that the two substrates can be attached to the printer main body 10 in one operation. Can do. Further, the printer body 10 is provided with the first slide groove 10A and the second slide groove 10B, and the substrate holder 30 is provided with a pair of protrusions 33, whereby the protrusion 33 is formed into the first slide groove 10A and the second slide groove 10B. The first substrate 27 and the second substrate 28 can be attached to the printer main body 10 simply by fitting and sliding into the printer main body 10.

  Next, the substrate unit 41 of the thermal printer 40 according to the second embodiment will be described with reference to FIGS. The same parts as those in the first embodiment are given the same reference numerals, and overlapping parts are omitted.

  FIG. 6 is an exploded perspective view of the substrate unit 41 according to the second embodiment. FIG. 7 is a perspective view of the substrate unit 41 when the first substrate 27 and the second substrate 28 are attached to the substrate holder 50. . The substrate holder 50 includes a base 51, a support rod 52, a first substrate engagement claw 53, a second substrate engagement claw 54, a fixing hole 55, a battery connection port 59 window 56, and an interface connection. It has a window 57 for the mouth 60 and a convex portion 58.

The base 51 is obtained by surrounding a plate-like resin in a substantially square shape and has a hole inside. A plurality of support rods 52 are erected inside the base body 51, and serve to support the first substrate 27 and the second substrate 28 to be attached, maintain the strength of the base body 51, and prevent deformation. A plurality of first substrate engaging claws 53 are provided on the surface of the base 51 on which the first substrate 27 is fitted, and the first substrate 27 is engaged with the side surface of the first substrate 27. It fits on the side. Similarly, the plurality of second substrate engaging claws 54 are provided on the surface of the base 51 on which the second substrate 28 is fitted, and the second substrate 28 is fitted on the other side surface of the base 51 having holes. . The pair of fixing holes 55 are holes formed in a surface facing the wall surface of the printer main body 70 when the substrate unit 41 is set in the printer main body 70, and a fixing protrusion 71 described later is inserted therethrough. . Each of the battery connection port 59 window 56 and the interface connection port 60 window 57 is a window for an external connection terminal, and is provided on one of the surfaces perpendicular to the surface of the base 51 where the fixing hole 55 is provided. ing. The battery connection port 59 is fitted in the battery connection port 59 and the interface connection port 60 is fitted in the interface connection port 60 window 57. The convex portion 58 is a convex portion provided on the outer side of the surface opposite to the surface on which the window 56 for the battery connection port 59 and the window 57 for the interface connection port 60 are provided, and is integrally formed with the base 51. ing. The battery connection port 59 is a battery connection port, is provided on one side of the first substrate 27, and is connected to an external power connection terminal for storing electric power in the battery 29. The interface connection port 60 is a connection port with an interface such as a USB. When the substrate unit 41 of the second substrate 28 is assembled, the interface connection port 60 faces the first substrate 27 and overlaps with the battery connection port 59. It is provided in the part that should not. As a result, even when the substrates are overlapped, the battery connection port 59 and the interface connection port 60 are in positions that do not overlap each other, so that no extra space is required and space saving can be realized.
The first substrate 27 and the second substrate 28 have connectors 61 and 62 that are connected to each other, and are connected to each other by the connectors 61 and 62. Since the first board 27 and the second board 28 are integrated as a board unit, the board unit maintains an integrated state even if an impact due to a printer drop or the like is applied. Can

  FIG. 8 is a cross-sectional view of the thermal printer 40 according to the second embodiment taken along line AA in FIG. The printer main body 70 includes a fixing protrusion 71 and a substrate unit sliding wall 72. The pair of fixing protrusions 71 are protrusions standing on both sides of the bottom surface on the downstream side of the printer main body 70 and are integrally formed with the printer main body 70. The pair of substrate unit slide walls 72 are support plates provided on one side of the bottom surface on the downstream side of the printer main body 70, and are integrally formed with the printer main body 70 with a gap 73 therebetween.

  FIG. 9 is a schematic top view when the substrate unit 41 is mounted on the printer body 70. To attach the substrate unit 41 to the printer main body 70, first, the convex portion 73 is sandwiched in the gap 73 between the pair of substrate unit sliding wall portions 72, and the convex portion 73 is slid to attach the substrate unit 41 to the printer main body 70. Guide to the bottom. When the substrate unit 41 reaches the fixing protrusion 71, the pair of fixing holes 55 penetrate the pair of fixing protrusions 71, respectively, and the substrate unit 41 is held upright with respect to the bottom surface of the printer main body 70.

  As described above, according to the second embodiment, a pair of fixing boards 71 provided on the printer main body 70 are passed through the window 56 for the battery connection port 59 through the pair of substrates 27 and 28 formed as a unit. Can be attached.

  In this embodiment, the number, position, shape, and the like of each constituent member are not limited to the above-described embodiment, and the number, position, shape, and the like suitable for implementing the present invention can be achieved. The present invention is not limited to the above-described embodiments, and it is obvious that the embodiments can be appropriately changed within the scope of the technical idea of the present invention.

1 Thermal printer (Example 1, Fig. 1)
2 Printer housing 3 Supply unit 4 Detection unit 5 Printing unit 6 Peeling unit 7 Electric control unit 10 Printer body 10A First slide groove
10B Second slide groove 11 Opening / closing lid 12 Hinge 13 Discharge port 14 Mount discharge port 15 Mount 16 Label 17 Support member 18 Light emitting unit 19 Light receiving unit 20 Thermal head 21 Platen roller 22 Platen roller fixing member 23 Release plate 24 Tension roller 25 Tension roller Fixing member 26 Substrate unit 27 First substrate 27A Screw penetration window 28 Second substrate 28A Screw penetration window 29 Battery 30 Substrate holder 31 Base 31A First screw hole 31B Second screw hole 32 Side plate 33 Convex portion 34 Screw 40 Thermal printer (Example 2)
41 Substrate unit 50 Substrate holder 51 Base 52 Support rod 53 First substrate engagement claw 54 Second substrate engagement claw 55 Fixing hole 56 Battery connection port 59 window 56
57 window 58 for interface connection port 60 convex portion 59 connection port for battery 60 interface connection port 70 printer main body 71 fixing projection 72 substrate unit sliding wall 73 gap L label continuum

Claims (6)

A first substrate;
A second substrate;
A substrate holder having the first substrate attached to one side and the second substrate attached to the side opposite to the one side, a frame-shaped substrate holder having a peripheral edge formed;
Wherein disposed in the substrate holder, and an external connection pin which is provided on at least one of the first substrate and the second substrate,
The substrate holder has a holding portion for holding the first substrate and the second substrate,
A substrate unit in which a window for fitting the external connection terminal is formed on a peripheral surface of the substrate holder. The substrate holder is configured to be surrounded by a plate-like member in a substantially square shape, and has a hole formed therein,
The substrate unit according to claim 1, wherein the first substrate and the second substrate are attached so as to close a hole of the substrate holder to form a hollow. Each of the first substrate and the second substrate has a connector,
The board unit according to claim 2, wherein the first board and the second board facing each other in the hollow region are connected through the connector. In the hollow region, a plurality of the external connection terminals are provided,
The board unit according to claim 2, wherein each of the external connection terminals is arranged so as not to overlap.   The substrate unit according to claim 1, wherein the first substrate and the second substrate have substantially the same size.   The substrate unit according to any one of claims 1 to 5, wherein a support bar that supports the first substrate and the second substrate and maintains the strength of the substrate holder is provided inside the substrate holder. .

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