JP4785632B2 - Device unit attachment / detachment structure for electronic devices - Google Patents

Description

  The present invention relates to an attachment / detachment structure of an equipment unit in an electronic device such as an optical receiver or a compensation booster.

  In general, as shown in FIGS. 6A and 6B, an optical receiver, which is one of electronic devices, transmits an optical signal for a television broadcast signal input through an optical fiber 101 to a television by an optical receiver 102. This is converted into an electric signal for broadcasting signal and supplied to the TV receiver 104 via the coaxial cable 103. FIG. 6A shows a case where a power outlet (not shown) is in the vicinity of the optical receiver, and the power unit 105 (power cord 105a) is used in the device body case of the optical receiver 102. An electric signal for a television broadcast signal is supplied from the F-type connector 102 a of the receiver 102 to the TV receiver 104 via the coaxial cable 103. FIG. 6B shows a case where a power outlet (not shown) is not in the vicinity of the place where the optical receiver 102 is installed, and the power unit 105 is removed from the device body case of the optical receiver 102 and the optical receiver 102 is removed. Between the F-type plug 102a of the optical receiver 102 via the coaxial cable 103a and the F-type plug 105b of the power supply unit 105. A signal is input and supplied to the power supply unit 105. An electrical signal is output from the F-type connector 105 c of the power supply unit 105 and supplied to the TV receiver 104. Therefore, it is required that the power supply unit 105 be detached from the device body case as easily and reliably as possible. Note that power for operation of the optical receiver 102 is supplied from the power supply unit 105 to the optical receiver 102 via the coaxial cable 103a so as to be superimposed on the electrical signal.

  Conventionally, as a structure in which a power supply unit (power supply unit) is housed in a device unit, for example, a case main body (device main body case), a movable hook that can be externally operated is fixed to one side of the power supply unit. While providing each of the claws, the device body case is provided with a locking portion for locking the movable hook and the fixed hook corresponding to the movable hook, and the coupling with the locking claw is released by an external operation of the movable hook. A configuration in which a power supply unit can be taken out of the case body is known (see, for example, Patent Document 1).

When the power supply unit is stored in the case body, the power supply unit is stored in the case body and slid downward so that the protrusions on both sides of the power supply unit are engaged with the protrusions on the case body. A thing is also known (for example, refer patent document 2).
JP 2006-115332 A (paragraphs 0018 to 0021 and FIG. 3) JP 2003-289188 A (paragraph 0016 and FIG. 5)

  In each of the above-mentioned Patent Documents 1 and 2, since it is necessary to move the constituent elements such as an external operation of the movable hook and a slide operation of the power supply unit, the structure becomes complicated and the appearance of the power supply unit may be impaired. .

  An object of the present invention is to provide a structure for attaching / detaching an equipment unit to / from an electronic device that has a simple structure and is easy and reliable to attach / detach the equipment unit.

The invention according to claim 1 is an attachment / detachment structure of an equipment unit in an electronic device in which the equipment unit is detachably attached within the equipment body case, wherein the equipment body case has the equipment unit on the upper side. The device unit has a width substantially equal to the width of the device main body case, and a guide rib extending in the width direction of the device unit is provided on each side portion. On the other hand, a guide projection that guides the guided rib in the unit storage direction when the device unit is stored in the device main body case on the inner wall surface of the device main body case corresponding to the side portion. parts are formed, the guide protrusions are engaged with the guided ribs, said portion for restricting the movement of the one side in the direction perpendicular to the width direction of the equipment unit and Wherein in a direction perpendicular to the width direction of the device unit and a portion for restricting the movement to the other side, the equipment unit, the grip portion is provided for gripping during storage to the device body casing, said device A locking portion for locking a side portion of the device unit extending in a direction substantially orthogonal to the width direction is provided in the main body case so as to protrude from the inner bottom surface of the device main body case. The locking portion has a portion that sandwiches the device unit with an inner bottom surface of the device main body case, and the device main body case has a side opposite to the device unit with the locking portion interposed therebetween. Another device unit is housed, and a connection cord connecting the device unit and another device unit is configured to pass through the lateral side of the locking portion, into the device body case, Said When the storage unit is completely housed, the width of the device unit and the device body case is substantially equal, so that the movement of the device unit in the width direction depends on the engagement relationship between the guided rib and the guide projection. The movement in the direction perpendicular to the width direction of the device unit is restricted by the locking portion from moving toward the opening portion of the device unit. Here, the equipment unit may be anything that can be detached and attached as necessary, and includes a power supply unit, a viewing control unit, and the like. Further, the guide convex portion and the guided rib may be guided by the relationship between the concave portion and the convex portion, or may be guided by the slidable contact between the convex portions.

  In this way, the gripping portion of the device unit is gripped, and the device unit is stored in the device main body case with high positioning accuracy due to the relationship between the guided portion and the guide portion. It is easily and reliably locked by the part. In addition, since the grip part is gripped and stored in the relationship between the guided part and the guide part, the storing operation is easy, and the grip part can be gripped and taken out by releasing the lock by the lock part. The take-out operation is also easy.

  According to a second aspect of the present invention, the locking portion includes a vertical plate portion protruding from an inner bottom surface of the device main body case, and a claw portion provided at a tip of the vertical plate portion, and the device unit. Moreover, it can be set as the structure by which the to-be-latched part or to-be-latched recessed part latched by the said nail | claw part so that engagement / disengagement was possible was formed.

  If it does in this way, locking of an apparatus unit will be made reliably using the elasticity of a locking part.

  According to a third aspect of the present invention, it is desirable that the grip portion is a hook-shaped protruding piece portion protruding outward.

  In this way, by gripping the grip portion, the device unit can be easily gripped, and the device unit can be easily attached and detached.

  As described in claim 4, a contact portion that contacts the device unit is provided alongside the locking portion, and is provided on an inner wall surface of the device main body case that faces the locking portion and the contact portion. In addition, a configuration may be employed in which a surface contact portion that contacts the device unit is provided.

  In this way, since the device unit is sandwiched between the contact portion and the surface contact portion, rattling of the device unit in a direction substantially perpendicular to the width direction is prevented.

  The present invention relates to the engagement relationship between the guided portion of the device unit and the guide portion of the device main body case, so that the device unit is stored in the device main body case with good positioning accuracy. Since the locking is performed, the device unit can be easily and reliably locked at a predetermined position in the device body case. In addition, since only the guided portion and the grip portion are provided in the device unit, the appearance of the device unit is not impaired.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 shows an optical receiver which is an example of an electronic apparatus according to the present invention. FIG. 1A is a front view, FIG. 1B is a side view, FIG. 1C is a bottom view, and FIG. It is a disassembled perspective view which abbreviate | omits and shows a part of optical receiver which is an example of the electronic device which concerns on invention.

  As shown in FIGS. 1 and 2, an optical receiver 11, which is an example of an electronic device according to the present invention, includes a device body case 12 made of synthetic resin, and upper left and right sides on the upper left and right sides of the device body case 12. The side mounting flange portion 13a has a synthetic resin lid 13 that is rotatably supported. The device body case 12 has a rectangular parallelepiped box shape with one side open, and one attachment flange portion 12a is provided on the upper side of the device body case 12 which is the upper side in the attached state, and three attachment flange portions 12b are provided on the lower side. Each is provided.

  A cutout portion 12Aa from which the power cord 21a from the power supply unit 21 is led is formed in the side surface portion 12A of the device main body case 12 (the side surface portion that is the lower surface in the mounted state and the mounting flange portion 12b is provided). Has been.

  Further, a waterproof cover member 15 is provided with two fixing screws 16A and 16B on the side surface portion 12A, along with the notch portion 12Aa, in a window portion for confirming the lighting state of the light emitting diode 33. . The waterproof cover member 15 is formed of a translucent material (for example, acrylic resin), and the lighting state of a light emitting diode (not shown) can be visually observed by looking through the waterproof cover member 15 in the window portion. It has become. In addition, three apertures 12Ac are formed on the opposite side of the notch 12Aa across the window. Of the three apertures 12Ac, the window portion is provided in the optical receiver body unit 23 (stored in the optical receiver body unit storage portion S in FIG. 2) through the two apertures 12Ac on the opposite side. Two F-type plugs 24 project and a F-type connector of a coaxial cable (not shown) is connected. The notch 12Aa and the opening 12Ac are not specifically illustrated, but are provided with sealing means so that the waterproof performance equivalent to the waterproof performance of the waterproof cover member 15 can be secured.

  Further, the structure will be described in detail with reference to FIGS.

  A power supply unit 21 and an optical receiver main unit 23 to which power is supplied from the power supply unit 21 are stored side by side in the device main body case 12, and the upper opening portion thereof is blocked by the optical fiber tray 25. It is the composition which becomes. A plug 22a provided at one end of the connection cord 22 is inserted into the outlet portion 21e of the power supply unit 21, and a plug (not shown) provided at the other end of the connection cord is an optical receiver body. Power is supplied from the power supply unit 21 to the optical receiver body unit 23 by being inserted into the outlet portion of the unit 23.

  The power cord 21a of the power unit 21 is led out through the notch 12Aa. Further, the F-type plug 24 protruding from the side surface of the optical receiver body unit 23 protrudes to the outside through the opening 12Ac.

  The power supply unit 21 has a width substantially equal to the width W of the device main body case 12, and two guided ribs 21b (guided portions) are provided in parallel on each side portion extending in the width direction. On the other hand, two guide protrusions 12c are formed in parallel on the inner wall surface of the device main body case 12 corresponding to the side portion in the width direction, and the power supply unit 21 is connected to a predetermined portion in the device main body case 12. When storing in the storage location, the power supply unit 21 is guided in the unit storing direction by the engagement relationship between the guided rib 21b and the guide convex portion 12c. The guide protrusion 12c is longer than the guided rib 21b and is positioned inside the guided rib 21b.

  Further, in the device main body case 12, there is provided a locking portion 12 d that locks the power supply unit 21 that extends in a direction substantially orthogonal to the width direction when the power supply unit 21 is completely stored. The locking portion 12d includes a vertical plate portion 12da that protrudes from the inner bottom surface of the device body case 12, and a tapered claw portion 12db that is provided at the distal end of the vertical plate portion 12da and has a width that decreases toward the distal end. Have. And the to-be-latched recessed part 21c latched so that engagement / disengagement is possible by the nail | claw part 12db is formed in the power supply unit 21. FIG.

  Further, an abutting portion 12e that abuts against the side portion of the power supply unit 21 is provided upright along the locking portion 12d. Two surface contact ribs 12f (surface contact portions) that contact the side portions of the power supply unit 21 are provided on the inner wall surface of the device body case 12 facing the locking portions 12d and the contact portions 12e.

  Further, the power supply unit 21 includes a hook-shaped protruding piece portion 21d protruding outward as a gripping portion, releases the engagement between the claw portion 12db and the locked recess portion 21c, and holds the protruding piece portion 21d. The power supply unit 21 can be easily removed by lifting the power supply unit 21 in a direction away from the device main body case 12.

  If comprised as mentioned above, when the protrusion piece part 21d of the power supply unit 21 is hold | gripped and the power supply unit 21 is accommodated in the apparatus main body case 12, having a width | variety substantially equal to the width W of the apparatus main body case 12, Due to the engagement relationship between the guide rib 21b and the guide protrusion 12c, the power supply unit 21 is housed in a predetermined position in the device body case 12 while being guided in a predetermined direction without difficulty. At the time of storage, the vertical plate portion 12da is bent so that the claw portion 12db of the locking portion 12d is separated from the power supply unit 21 by contact with the side portion of the power supply unit 21. When the power supply unit 21 reaches the inner bottom surface of the device body case 12 and the storage is completed, the locking portion 12d returns to the initial state due to the resin elasticity of the power supply unit 21 itself, and is engaged with the locked recess 21c of the power supply unit 21. The claw portion 12db of the stop portion 12d is engaged so as to be detachable. Accordingly, the power supply unit 21 is locked at a predetermined storage position of the device main body case 12 by one locking portion 12d.

  In this locked state, the movement of the power supply unit 21 has a width substantially equal to the width W of the device main body case 12 in the width direction, and the guided rib 21b and the guide convex portion 12c are engaged. It is regulated by. Further, in the direction orthogonal to the width direction, the power supply unit is located between the engagement portion or contact portion 12e of the claw portion 12db of the locking portion 12d and the engagement recess 21c of the power supply unit 21 and the surface contact rib 12f. It is regulated by holding 21. Therefore, the power supply unit 21 does not rattle carelessly in the stored state.

  Further, when the power supply unit 21 is taken out from the device body case 12, the locking portion 12d is bent in a direction to release the engagement between the claw portion 12db of the locking portion 12d and the locked recess 21c, and the protruding piece By grasping the portion 21d and lifting the power supply unit 21 in a direction away from the device main body case 12, the power supply unit 21 can be easily removed.

  In the embodiment, the locking recess 12c of the power supply unit 21 is locked by the locking portion 12d. However, without such a locking recess, the claw portion 12db of the locking portion can be used. It is also possible to adopt a configuration in which the upper surface of the device unit (power supply unit 21) is locked as it is.

  In addition, the guide portion that guides the guided rib 21b that is a guided portion is a guide convex portion 12c that contacts the one surface of the guided rib 21b and guides the insertion (storage) of the power supply unit 21. It may be a guide recess in which the guided rib 21b is slidably fitted between the pair of protrusions, or may be a guide groove that is recessed from the inner wall surface of the device body case 12. Further, instead of the guided rib, a guide groove portion or a guide concave portion may be provided on the power supply unit 21 side, and a guided rib or a guide convex portion may be provided on the device body case side.

FIG. 1A is a front view, FIG. 1B is a side view, and FIG. 1C is a bottom view, illustrating an optical receiver that is an example of an electronic apparatus according to the invention. It is a disassembled perspective view which abbreviate | omits and shows a part of optical receiver which is an example of the electronic device which concerns on this invention. It is the same exploded perspective view. It is a top view which shows the state in which the power supply unit was attached in the apparatus main body case. It is sectional drawing in the AA of FIG. FIG. 6A is an explanatory diagram when the power supply unit is provided inside the device main body case, and FIG. 6B is an explanatory diagram when the power supply unit is provided outside the device main body case.

Explanation of symbols

11 Optical receiver 12 Device body case 12c Guide convex part (guide part)
12d Locking part 12da Vertical plate part 12db Claw part 12e Contact part 12f Surface contact rib (surface contact part)
21 Power supply unit 21a Power cord 21b Guided rib (guided part)
21c Locked recess 21d Projection piece

Claims (4)

A device unit detachable structure in an electronic device in which the device unit is detachably mounted in the device body case,
The device body case has an opening on the upper side for detachably storing the device unit in the device body case,
The device unit has a width substantially equal to the width of the device main body case, and is provided with guided ribs extending in the width direction of the device unit on each side portion, and on the inner wall surface of the device main body case, A guide convex portion that guides the guided rib in the unit storing direction when the device unit is stored in the device main body case is formed on the inner wall surface corresponding to the side portion,
The guide convex portion engages with the guided rib to restrict movement to one side in a direction orthogonal to the width direction of the device unit, and the other side in a direction orthogonal to the width direction of the device unit And a part that regulates movement to
The device unit is provided with a grip portion for gripping when stored in the device body case,
A locking portion that locks a side portion of the device unit extending in a direction substantially orthogonal to the width direction protrudes from the inner bottom surface of the device main body case in the device main body case when the device unit is completely stored. Provided,
The locking portion has a portion that sandwiches the device unit with an inner bottom surface of the device body case,
In the device main body case, another device unit is accommodated on the opposite side of the device unit across the locking portion, and a connection cord for connecting the device unit and another device unit is provided in the locking portion. Of the width direction side,
When the device unit is completely housed in the device main body case, the width of the device unit and the device main body case is substantially equal, so that the movement of the device unit in the width direction is caused by the guided rib and the guide convex portion. The movement in the direction orthogonal to the width direction of the device unit is restricted by the engagement relationship with the movement of the device unit, and the movement of the device unit toward the opening portion is restricted by the locking portion. Unit attachment / detachment structure.
The locking portion has a vertical plate portion protruding from the inner bottom surface of the device main body case, and a claw portion provided at the tip of the vertical plate portion,
The locked portion or locked recess is formed in the device unit so as to be detachably locked by a claw portion of the locking portion when the storage of the device unit is completed. The attachment / detachment structure of the apparatus unit in the electronic device of 1. The attachment / detachment structure of an equipment unit in an electronic device according to claim 2, wherein the gripping part is a hook-shaped protruding piece part protruding outward. A contact portion that contacts the device unit is provided on the inner wall surface of the device body case facing the locking portion and the contact portion. The part is provided, The attachment / detachment structure of the apparatus unit in the electronic device in any one of Claims 1-3 characterized by the above-mentioned.

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