CN100442960C - Tuning devices - Google Patents

Tuning devices Download PDF

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Publication number
CN100442960C
CN100442960C CNB2004100304198A CN200410030419A CN100442960C CN 100442960 C CN100442960 C CN 100442960C CN B2004100304198 A CNB2004100304198 A CN B2004100304198A CN 200410030419 A CN200410030419 A CN 200410030419A CN 100442960 C CN100442960 C CN 100442960C
Authority
CN
China
Prior art keywords
mentioned
terminal
framework
tuner
wall portion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CNB2004100304198A
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Chinese (zh)
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CN1531390A (en
Inventor
饭牟礼圣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alps Alpine Co Ltd
Original Assignee
Alps Electric Co Ltd
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Filing date
Publication date
Application filed by Alps Electric Co Ltd filed Critical Alps Electric Co Ltd
Publication of CN1531390A publication Critical patent/CN1531390A/en
Application granted granted Critical
Publication of CN100442960C publication Critical patent/CN100442960C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00—Screening of apparatus or components against electric or magnetic fields
    • H05K9/0007—Casings
    • H05K9/002—Casings with localised screening
    • H05K9/0039—Galvanic coupling of ground layer on printed circuit board [PCB] to conductive casing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/08—Constructional details, e.g. cabinet
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/0026—Casings, cabinets or drawers for electric apparatus provided with connectors and printed circuit boards [PCB], e.g. automotive electronic control units
    • H05K5/0069—Casings, cabinets or drawers for electric apparatus provided with connectors and printed circuit boards [PCB], e.g. automotive electronic control units having connector relating features for connecting the connector pins with the PCB or for mounting the connector body with the housing
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00—Screening of apparatus or components against electric or magnetic fields
    • H05K9/0007—Casings
    • H05K9/006—Casings specially adapted for signal processing applications, e.g. CATV, tuner, antennas amplifier

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Structure Of Receivers (AREA)

Abstract

Provided is a small-sized tuner apparatus with a simple configuration and an excellent high frequency characteristic. The tuner apparatus is provided with: a frame formed rectangle surroundings of which are surrounded by wall parts 1a made of metallic plates; a circuit board located in the frame; and a plurality of lead-out terminals placed in parallel at one-end side of the circuit board and projected to the outside of the frame from one of the wall parts, each of the lead-out terminals is projected to the outside of the frame through a notch 1e provided to the wall part, the wall part with the notch 1e is provided with a terminal 1g for grounding projected into the frame, and since the end of the terminal 1g is connected to a ground pattern provided to the circuit board in the frame, the ground pattern of a tuner circuit in the frame is connected to ground by the terminal so that the tuner apparatus has the excellent high frequency characteristic.

Description

Tuner
Technical field
The present invention relates to the tuner that is suitable in digital tuner etc.
Background technology
Traditional tuner figure is described now, and Fig. 5 is the plane graph of traditional tuner, and Fig. 6 is the end view of traditional tuner.
Below, the structure of traditional tuner is described according to Fig. 5, Fig. 6.The box framework 51 that constitutes by metallic plate, have: the 51a of wall portion of the besieged formation hollow in four sides, the sidewall 51b that is provided with patent part side the side of the 51a of this wall portion, with the portion of terminal 51c that is projected into foreign side from this sidewall 51b, with be provided with at the opposing party's patent part side of the 51a of wall portion notch 51d and be projected into the leg 51e of below from the opposed wall 51a of portion.
On the circuit board 52 that constitutes by printed substrate, various electronic units 53 are installed, form tuning circuit, and distolateral at circuit board 52 is set side by side with a plurality of leading-out terminals 54 that input and output are used.
This circuit board 52 disposes under the state that is positioned on the notch 51d and is installed to framework 51, and leading-out terminal 54 is in the state that is projected into outside the framework 51.(for example, with reference to patent documentation 1)
And the tuner with this structure is loaded onto on the motherboard 55 as the electronic equipment of installation side, inserts under the states that lead on the motherboard 55 at terminal part 51c, leg 51e and leading-out terminal 54, and welded and installed is to motherboard 55.
But, owing to be arranged on the ground connection figure of portion of terminal 51c in the framework 51 and motherboard 55 (not shown), so, can carry out the ground connection of framework 51, but the earthy figure of circuit board 52 that is positioned at the framework 51 of tuner can not be carried out ground connection, the high frequency characteristics of tuner worsens.
In addition,, form at the figure of motherboard 55 to be restricted, the versatility of motherboard 55 is worsened owing to portion of terminal 51c is connected on the earthy figure (not shown) of motherboard 55.
[patent documentation 1]: the spy opens the 2002-271054 communique.
Traditional tuner, there is such problem: because the portion of terminal 51c that is provided with is connected on the earthy figure of motherboard 55 in framework 51, so the earthy figure that is positioned at the circuit board 52 of framework 51 can not be carried out ground connection, make the high frequency waves characteristic degradation of tuner.
In addition,, be restricted, the versatility of motherboard 55 is worsened so form at the figure of motherboard 55 because portion of terminal 51c is connected on the earthy figure of motherboard 55.
Summary of the invention
So, the purpose of this invention is to provide good, simple in structure, the small-sized tuner of a kind of high frequency waves characteristic.
As having with solving above-mentioned problem the 1st solution, constituting: the wall portion that is made of metallic plate surrounds the framework that the four directions forms hollow; Be configured in the circuit board in this framework; A plurality of leading-out terminals are set up in parallel distolateral at this circuit board, are projected into outside the above-mentioned framework from an above-mentioned wall portion.Above-mentioned leading-out terminal is projected into outside the above-mentioned framework by the notch that is provided with in above-mentioned wall portion, and, have in the above-mentioned wall portion of above-mentioned notch, setting is projected into the earthy portion of terminal in the above-mentioned framework, the earthy figure that is provided with on the end of above-mentioned portion of terminal and the foregoing circuit plate in above-mentioned framework is connected, the leading section of the above-mentioned leading-out terminal that is positioned at above-mentioned framework is crossed in the end of above-mentioned portion of terminal, is positioned at the inside of above-mentioned framework.
In addition, as the 2nd solution, constitute: above-mentioned portion of terminal is arranged on the limit parallel with the foregoing circuit plate of above-mentioned wall portion.
In addition, as the 3rd solution, constitute: above-mentioned portion of terminal is arranged on the above-mentioned wall portion limit at above-mentioned notch place.
In addition, as the 4th solution, constitute: the end of above-mentioned portion of terminal forms a plurality of branches.
In addition, as the 5th solution, constitute: the conductively-closed plate is divided into a plurality of chambers of cutting apart in the above-mentioned framework, and, on the foregoing circuit plate, form the RF tuning circuit at least, above-mentioned portion of terminal is configured in above-mentioned RF tuning circuit place above-mentioned cut apart indoor.
In addition,, constitute as the 6th solution: have a plurality of above-mentioned portion of terminal, above-mentioned portion of terminal be configured to respectively a plurality of above-mentioned cut apart indoor.
In addition, as the 7th solution, constitute: on the foregoing circuit plate, formed the digital tuning circuitry that comprises digital double-tuned circuit.
Description of drawings
Fig. 1 is the plane graph of tuner of the present invention.
Fig. 2 is the major part profile of tuner of the present invention.
Fig. 3 is the upward view of tuner of the present invention.
Fig. 4 is the oblique view of the framework that relates to of tuner of the present invention.
Fig. 5 is the plane graph of traditional tuner.
Fig. 6 is the side view of traditional tuner.
Embodiment
Tuner figure of the present invention is described now.Fig. 1 is the plane graph of tuner of the present invention, and Fig. 2 is the major part profile of tuner of the present invention, and Fig. 3 is the upward view of tuner of the present invention, and Fig. 4 is the oblique view of tuner framework of the present invention.
Below, be example with the situation that tuner of the present invention is applicable to the digital tuning device, describe according to Fig. 1～Fig. 4.Framework 1 by metallic plate constitutes has: the four sides besieged and have in both sides the hollow of peristome the 1a of wall portion, be used for being divided in the 1a of wall portion with this hollow the 1st～the 5th cut apart the barricade 1b of chamber K1～K5, the 1d of foot that has claw 1c below being projected into from the opposed a pair of wall 1a of portion, the notch 1e that is provided with at a 1a of wall portion.
In addition, framework 1 has: be projected into the earthy portion of terminal 1g of L font in the 1a of wall portion, that be provided with by one side (base) 1f bending of the 1a of wall portion at notch 1e place; Be arranged on the branching portion 1h end, that be divided into a plurality of branches of this portion of terminal 1g; The earthy portion of terminal 1k of L font that is provided with by another side (side) the 1j bending of the 1a of wall portion at notch 1e place; From the outstanding a plurality of lug 1m of barricade 1b.
Circuit board 2 by printed substrate constitutes has: the wiring figure 3a that constitutes by Copper Foil etc. and by the earthy figure 3b that Copper Foil etc. constitutes, on this figure 3a, 3b, load various electronic units, and form required tuning circuit (digital tuning circuitry).
In addition, the a plurality of input and output that are made of metal wire etc. are with leading-out terminals 5, be connected with tuning circuit under the state of (welding), be installed to the distolateral of circuit board 2 with the state that is set up in parallel into row, these leading-out terminals 5 are in the distolateral state that is projected into foreign side from circuit board 2.
Moreover, also can constitute like this: a plurality of leading-out terminals 5 are buried underground and are installed in the insulating body of being made up of the moulding product of insulating material (not shown), this insulating body under the state that is loaded on the circuit board 2, is connected (welding) to tuning circuit with a plurality of leading-out terminals 5.
Such circuit board 2 is positioned at leading-out terminal 5 under the state of notch 1e and is configured to framework 1, by part bending or the welding with framework 1, is installed on the framework 1.
Then, in the time of in circuit board 2 is installed to framework 1, leading-out terminal 5 with framework 1 non-contacting state under, be projected into the foreign side of framework 1 by notch 1e, and, branching portion 1h, the portion of terminal 1k of portion of terminal 1g and lug 1m under the state that connects circuit board, are connected (welding) with the earthy figure 3b that is positioned at framework 1.
At this moment, be positioned at and be provided with one side 1f portion of terminal 1g, notch 1e, opposed with a plurality of leading-out terminals 5, and with 2 one-tenth parallel states of circuit board, one side 1f that is positioned at this notch 1e is provided with under the situation of portion of terminal 1g, earthy figure 3b in framework 1 and the distance between the 1a of wall portion shorten, thereby, can further improve the high frequency waves characteristic.
Moreover, in this embodiment, illustrated that portion of terminal 1g and circuit board 2 are parallel and be set to one side 1f that is positioned on the notch 1e to go up situation, but portion of terminal 1g also can be arranged on the outer side edges 1n with the opposed wall 1a of portion of 1f on one side.
In addition,, be positioned at the leading section of crossing the leading-out terminal 5 that is positioned at framework 1 under the state of inside of framework 1, be connected with earthy figure 3b as the branching portion 1h of the end of portion of terminal 1g.
In addition, in the time of in circuit board 2 is installed to framework 1, the tuning circuit conductively-closed plate 1b of circuit board 2 is cut apart, and cut apart chamber K1 configuration antenna tuning circuit the 1st, cut apart the RF tuning circuit that chamber K2 disposes the VHF frequency band the 2nd, cut apart the RF tuning circuit that chamber K3 disposes the UHF frequency band, cut apart chamber K4 configuration OSC circuit and MIX circuit the 4th the 3rd, and, cut apart chamber K5 the 5th and dispose digital double-tuned circuit.
Its result, portion of terminal 1g is connected with the earthy figure 3b of the RF tuning circuit that is arranged in the VHF frequency band, and portion of terminal 1k is connected with the earthy figure 3b that is arranged in antenna tuning circuit.
Moreover, also can a plurality of portion of terminal 1g be set at one side of notch 1e 1f, each portion of terminal 1g is configured to a plurality of each that cut apart the chamber cuts apart indoor.
The coaxial type connector 6 that antenna is used is installed on the 1a of wall portion at antenna tuning circuit place, and, though not shown at this, be provided with the shell of two opening portions that cover framework 1, formed tuner with such structure.
Tuner with such structure is loaded on the motherboard 7 as the electronic equipment of installation side, leading-out terminal 5 and leg 1d insert and lead to motherboard 7, and under the state of having fixed with claw 1c, welded and installed is to motherboard 7.
In addition, the 1d of foot that is arranged on the framework 1 is connected with the earthy figure (not shown) of motherboard 7, makes framework 1 ground connection, and leading-out terminal 5 is connected with wiring figure (not shown) and connects up.
Tuner of the present invention has: the wall portion that is made of metallic plate surrounds the framework that the four directions forms hollow; Be configured in the circuit board in this framework; A plurality of leading-out terminals, be set up in parallel distolateral at this circuit board, be projected into outside the framework from a wall portion, leading-out terminal is projected into outside the framework by the notch that is provided with in above-mentioned wall portion, and, have in the wall portion of notch, the earthy portion of terminal be projected in the framework is set, the earthy figure that is provided with on the end of portion of terminal and the circuit board in framework is connected.
In addition, because portion of terminal and wall portion are arranged to one,, and, therefore, can obtain midget plant owing to be projected in the framework so it is simple in structure.
In forming, the figure of motherboard is not subjected to the restriction of portion of terminal, so can make motherboard have versatility.
In addition, owing to portion of terminal is arranged on the limit parallel with circuit board of wall portion, so, portion of terminal can be freely formed with the opposed position of leading-out terminal, in required place, can be freely formed in the position close with leading-out terminal, can obtain having the device of the degree of freedom.
In addition, owing to portion of terminal is arranged on the wall portion limit at notch place, so earthy figure in framework and the distance between the wall portion shorten, thereby can further improve the high frequency waves characteristic.
In addition,, the end of portion of terminal is divided into a plurality of branches because forming, so, accomplish many places ground connection easily with a portion of terminal, and can obtain the firm device of supporting of portion of terminal.
In addition, the leading section of the leading-out terminal that is positioned at framework is crossed in the end of portion of terminal, be positioned at the inside of framework, so, can and leading-out terminal between the interval irrespectively, carry out the ground connection of earthy figure, therefore, can further reduce the interval between leading-out terminal, so can obtain in orientation small-sized and can arrange the device of a plurality of leading-out terminals.
In addition, the conductively-closed plate is divided into a plurality of chambers of cutting apart in the framework, and, on circuit board, form the RF tuning circuit at least, it is indoor that portion of terminal is configured in cutting apart of RF tuning circuit place, so, can further improve high frequency waves characteristic as the RF tuning circuit of high frequency waves circuit.
In addition owing to have a plurality of portion of terminal, portion of terminal be configured to respectively a plurality of cut apart indoor, so, can further improve the high frequency waves characteristic.
In addition, on circuit board, formed the digital tuning circuitry that comprises digital double-tuned circuit, so, be specially adapted to need the digital tuning circuitry of a plurality of leading-out terminals.
In addition, on circuit board, formed the digital tuning circuitry that comprises digital double-tuned circuit, so, be specially adapted to need the digital tuning circuitry of a plurality of leading-out terminals.

Claims (7)

1. a tuner is characterized in that, has: the wall portion that is made of metallic plate surrounds the four directions and forms the framework of hollow; Be configured in the circuit board in this framework; A plurality of leading-out terminals are set up in parallel distolateral at this circuit board, are projected into outside the above-mentioned framework from an above-mentioned wall portion,
Above-mentioned leading-out terminal is projected into outside the above-mentioned framework by the notch that is provided with in above-mentioned wall portion, and, have in the above-mentioned wall portion of above-mentioned notch, setting is projected into the earthy portion of terminal in the above-mentioned framework, the earthy figure that is provided with on the end of above-mentioned portion of terminal and the foregoing circuit plate in above-mentioned framework is connected
The leading section of the above-mentioned leading-out terminal that is positioned at above-mentioned framework is crossed in the end of above-mentioned portion of terminal, is positioned at the inside of above-mentioned framework.
2. tuner according to claim 1 is characterized in that, above-mentioned portion of terminal is arranged on the limit parallel with the foregoing circuit plate of above-mentioned wall portion.
3. tuner according to claim 1 and 2 is characterized in that, above-mentioned portion of terminal is arranged on the above-mentioned wall portion limit at above-mentioned notch place.
4. tuner according to claim 1 and 2 is characterized in that the end of above-mentioned portion of terminal forms a plurality of branches.
5. tuner according to claim 1 and 2, it is characterized in that the conductively-closed plate is divided into a plurality of chambers of cutting apart in the above-mentioned framework, and, on the foregoing circuit plate, form the RF tuning circuit at least, above-mentioned portion of terminal is configured in above-mentioned RF tuning circuit place above-mentioned cut apart indoor.
6. tuner according to claim 5 is characterized in that, has a plurality of above-mentioned portion of terminal, above-mentioned portion of terminal be configured to respectively a plurality of above-mentioned cut apart indoor.
7. tuner according to claim 6 is characterized in that, has formed the digital tuning circuitry that comprises digital double-tuned circuit on the foregoing circuit plate.
CNB2004100304198A 2003-03-13 2004-03-15 Tuning devices Expired - Fee Related CN100442960C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2003068643A JP4113016B2 (en) 2003-03-13 2003-03-13 Tuner device
JP2003068643 2003-03-13

Publications (2)

Publication Number Publication Date
CN1531390A CN1531390A (en) 2004-09-22
CN100442960C true CN100442960C (en) 2008-12-10

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Application Number Title Priority Date Filing Date
CNB2004100304198A Expired - Fee Related CN100442960C (en) 2003-03-13 2004-03-15 Tuning devices

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JP (1) JP4113016B2 (en)
KR (1) KR100623266B1 (en)
CN (1) CN100442960C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4787626B2 (en) * 2006-02-15 2011-10-05 アルプス電気株式会社 High frequency unit
JP4938073B2 (en) * 2009-11-10 2012-05-23 シャープ株式会社 Broadcast receiver

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0715361A (en) * 1993-06-23 1995-01-17 Sharp Corp Dbs tuner
JP2001017424A (en) * 1999-07-02 2001-01-23 Toshiba Corp Ultrasonograph
JP2001060886A (en) * 1994-07-27 2001-03-06 Sharp Corp Up-down tuner
US6400419B1 (en) * 1997-10-13 2002-06-04 Alps Electric Co., Ltd. Television tuner system
JP2002271054A (en) * 2001-03-06 2002-09-20 Mitsumi Electric Co Ltd Tuner device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3254723B2 (en) * 1992-04-17 2002-02-12 株式会社村田製作所 Card type high frequency equipment
JPH07263891A (en) * 1994-03-18 1995-10-13 Fujitsu Ltd Electronic/communication device unit structure and shielding member
JP3153711B2 (en) * 1994-07-27 2001-04-09 シャープ株式会社 Up-down tuner
JP3490036B2 (en) * 1999-12-16 2004-01-26 シャープ株式会社 Printed circuit board for mounting shield case

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0715361A (en) * 1993-06-23 1995-01-17 Sharp Corp Dbs tuner
JP2001060886A (en) * 1994-07-27 2001-03-06 Sharp Corp Up-down tuner
US6400419B1 (en) * 1997-10-13 2002-06-04 Alps Electric Co., Ltd. Television tuner system
JP2001017424A (en) * 1999-07-02 2001-01-23 Toshiba Corp Ultrasonograph
JP2002271054A (en) * 2001-03-06 2002-09-20 Mitsumi Electric Co Ltd Tuner device

Also Published As

Publication number Publication date
KR100623266B1 (en) 2006-09-18
CN1531390A (en) 2004-09-22
JP4113016B2 (en) 2008-07-02
KR20040081373A (en) 2004-09-21
JP2004282254A (en) 2004-10-07

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Granted publication date: 20081210

Termination date: 20160315